diff options
Diffstat (limited to 'arch')
475 files changed, 10064 insertions, 6597 deletions
diff --git a/arch/Kconfig b/arch/Kconfig new file mode 100644 index 000000000000..3d72dc3fc8f5 --- /dev/null +++ b/arch/Kconfig @@ -0,0 +1,31 @@ +# +# General architecture dependent options +# + +config OPROFILE + tristate "OProfile system profiling (EXPERIMENTAL)" + depends on PROFILING + depends on HAVE_OPROFILE + help + OProfile is a profiling system capable of profiling the + whole system, include the kernel, kernel modules, libraries, + and applications. + + If unsure, say N. + +config HAVE_OPROFILE + def_bool n + +config KPROBES + bool "Kprobes" + depends on KALLSYMS && MODULES + depends on HAVE_KPROBES + help + Kprobes allows you to trap at almost any kernel address and + execute a callback function. register_kprobe() establishes + a probepoint and specifies the callback. Kprobes is useful + for kernel debugging, non-intrusive instrumentation and testing. + If in doubt, say "N". + +config HAVE_KPROBES + def_bool n diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 4c002ba37e50..01b10ab588a6 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -5,6 +5,7 @@ config ALPHA bool default y + select HAVE_OPROFILE help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, @@ -318,11 +319,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config PCI_DOMAINS bool default y @@ -536,8 +532,8 @@ config SMP singleprocessor machines. On a singleprocessor machine, the kernel will run faster if you say N here. - See also the <file:Documentation/smp.txt>, and the SMP-HOWTO - available at <http://www.tldp.org/docs.html#howto>. + See also the SMP-HOWTO available at + <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -654,8 +650,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/alpha/Kconfig.debug" # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 468b76ce66a1..8ac08311f5a5 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -165,7 +165,7 @@ dma_alloc_coherent(struct device *dev, size_t size, ret = (void *)__get_free_pages(gfp, get_order(size)); if (ret) { memset(ret, 0, size); - *dma_handle = virt_to_bus(ret); + *dma_handle = virt_to_phys(ret); } return ret; } @@ -184,7 +184,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents, BUG_ON(!sg_page(sg)); va = sg_virt(sg); - sg_dma_address(sg) = (dma_addr_t)virt_to_bus(va); + sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va); sg_dma_len(sg) = sg->length; } diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 2d00a08d3f08..26d3789dfdd0 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -9,6 +9,7 @@ #include <linux/bootmem.h> #include <linux/scatterlist.h> #include <linux/log2.h> +#include <linux/dma-mapping.h> #include <asm/io.h> #include <asm/hwrpb.h> @@ -470,22 +471,29 @@ EXPORT_SYMBOL(pci_free_consistent); #define SG_ENT_PHYS_ADDRESS(SG) __pa(SG_ENT_VIRT_ADDRESS(SG)) static void -sg_classify(struct scatterlist *sg, struct scatterlist *end, int virt_ok) +sg_classify(struct device *dev, struct scatterlist *sg, struct scatterlist *end, + int virt_ok) { unsigned long next_paddr; struct scatterlist *leader; long leader_flag, leader_length; + unsigned int max_seg_size; leader = sg; leader_flag = 0; leader_length = leader->length; next_paddr = SG_ENT_PHYS_ADDRESS(leader) + leader_length; + /* we will not marge sg without device. */ + max_seg_size = dev ? dma_get_max_seg_size(dev) : 0; for (++sg; sg < end; ++sg) { unsigned long addr, len; addr = SG_ENT_PHYS_ADDRESS(sg); len = sg->length; + if (leader_length + len > max_seg_size) + goto new_segment; + if (next_paddr == addr) { sg->dma_address = -1; leader_length += len; @@ -494,6 +502,7 @@ sg_classify(struct scatterlist *sg, struct scatterlist *end, int virt_ok) leader_flag = 1; leader_length += len; } else { +new_segment: leader->dma_address = leader_flag; leader->dma_length = leader_length; leader = sg; @@ -512,7 +521,7 @@ sg_classify(struct scatterlist *sg, struct scatterlist *end, int virt_ok) in the blanks. */ static int -sg_fill(struct scatterlist *leader, struct scatterlist *end, +sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, struct scatterlist *out, struct pci_iommu_arena *arena, dma_addr_t max_dma, int dac_allowed) { @@ -562,8 +571,8 @@ sg_fill(struct scatterlist *leader, struct scatterlist *end, /* Otherwise, break up the remaining virtually contiguous hunks into individual direct maps and retry. */ - sg_classify(leader, end, 0); - return sg_fill(leader, end, out, arena, max_dma, dac_allowed); + sg_classify(dev, leader, end, 0); + return sg_fill(dev, leader, end, out, arena, max_dma, dac_allowed); } out->dma_address = arena->dma_base + dma_ofs*PAGE_SIZE + paddr; @@ -619,12 +628,15 @@ pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, struct pci_iommu_arena *arena; dma_addr_t max_dma; int dac_allowed; + struct device *dev; if (direction == PCI_DMA_NONE) BUG(); dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; + dev = pdev ? &pdev->dev : NULL; + /* Fast path single entry scatterlists. */ if (nents == 1) { sg->dma_length = sg->length; @@ -638,7 +650,7 @@ pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, end = sg + nents; /* First, prepare information about the entries. */ - sg_classify(sg, end, alpha_mv.mv_pci_tbi != 0); + sg_classify(dev, sg, end, alpha_mv.mv_pci_tbi != 0); /* Second, figure out where we're going to map things. */ if (alpha_mv.mv_pci_tbi) { @@ -658,7 +670,7 @@ pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, for (out = sg; sg < end; ++sg) { if ((int) sg->dma_address < 0) continue; - if (sg_fill(sg, end, out, arena, max_dma, dac_allowed) < 0) + if (sg_fill(dev, sg, end, out, arena, max_dma, dac_allowed) < 0) goto error; out++; } diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index bd5e68cd61e8..beff6297f788 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -58,7 +58,6 @@ static struct notifier_block alpha_panic_block = { #include <asm/system.h> #include <asm/hwrpb.h> #include <asm/dma.h> -#include <asm/io.h> #include <asm/mmu_context.h> #include <asm/console.h> diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index 79de99e32c35..ba914af18c4f 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -495,7 +495,7 @@ sys_call_table: .quad sys_epoll_pwait .quad sys_utimensat /* 475 */ .quad sys_signalfd - .quad sys_timerfd + .quad sys_ni_syscall .quad sys_eventfd .size sys_call_table, . - sys_call_table diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 77201d3f7479..e19e7744e366 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -10,6 +10,8 @@ config ARM default y select RTC_LIB select SYS_SUPPORTS_APM_EMULATION + select HAVE_OPROFILE + select HAVE_KPROBES if (!XIP_KERNEL) help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and @@ -33,6 +35,11 @@ config GENERIC_CLOCKEVENTS bool default n +config GENERIC_CLOCKEVENTS_BROADCAST + bool + depends on GENERIC_CLOCKEVENTS + default y if SMP && !LOCAL_TIMERS + config MMU bool default y @@ -135,6 +142,23 @@ config FIQ config ARCH_MTD_XIP bool +if OPROFILE + +config OPROFILE_ARMV6 + def_bool y + depends on CPU_V6 && !SMP + select OPROFILE_ARM11_CORE + +config OPROFILE_MPCORE + def_bool y + depends on CPU_V6 && SMP + select OPROFILE_ARM11_CORE + +config OPROFILE_ARM11_CORE + bool + +endif + config VECTORS_BASE hex default 0xffff0000 if MMU || CPU_HIGH_VECTOR @@ -168,6 +192,8 @@ config ARCH_REALVIEW bool "ARM Ltd. RealView family" select ARM_AMBA select ICST307 + select GENERIC_TIME + select GENERIC_CLOCKEVENTS help This enables support for ARM Ltd RealView boards. @@ -359,6 +385,7 @@ config ARCH_PXA depends on MMU select ARCH_MTD_XIP select GENERIC_GPIO + select HAVE_GPIO_LIB select GENERIC_TIME select GENERIC_CLOCKEVENTS select TICK_ONESHOT @@ -577,11 +604,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config PCI_SYSCALL def_bool PCI @@ -609,7 +631,7 @@ source "kernel/time/Kconfig" config SMP bool "Symmetric Multi-Processing (EXPERIMENTAL)" - depends on EXPERIMENTAL && REALVIEW_MPCORE + depends on EXPERIMENTAL && REALVIEW_EB_ARM11MP help This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If @@ -621,8 +643,7 @@ config SMP processor machines. On a single processor machine, the kernel will run faster if you say N here. - See also the <file:Documentation/smp.txt>, - <file:Documentation/i386/IO-APIC.txt>, + See also <file:Documentation/i386/IO-APIC.txt>, <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at <http://www.linuxdoc.org/docs.html#howto>. @@ -643,7 +664,7 @@ config HOTPLUG_CPU config LOCAL_TIMERS bool "Use local timer interrupts" - depends on SMP && REALVIEW_MPCORE + depends on SMP && REALVIEW_EB_ARM11MP default y help Enable support for local timers on SMP platforms, rather then the @@ -899,6 +920,13 @@ config KEXEC initially work for you. It may help to enable device hotplugging support. +config ATAGS_PROC + bool "Export atags in procfs" + default n + help + Should the atags used to boot the kernel be exported in an "atags" + file in procfs. Useful with kexec. + endmenu if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) @@ -1035,6 +1063,9 @@ menu "Power management options" source "kernel/power/Kconfig" +config ARCH_SUSPEND_POSSIBLE + def_bool y + endmenu source "net/Kconfig" @@ -1092,6 +1123,8 @@ source "drivers/i2c/Kconfig" source "drivers/spi/Kconfig" +source "drivers/gpio/Kconfig" + source "drivers/w1/Kconfig" source "drivers/power/Kconfig" @@ -1130,8 +1163,6 @@ endmenu source "fs/Kconfig" -source "arch/arm/Kconfig.instrumentation" - source "arch/arm/Kconfig.debug" source "security/Kconfig" diff --git a/arch/arm/Kconfig.instrumentation b/arch/arm/Kconfig.instrumentation deleted file mode 100644 index 453ad8e15d69..000000000000 --- a/arch/arm/Kconfig.instrumentation +++ /dev/null @@ -1,62 +0,0 @@ -menuconfig INSTRUMENTATION - bool "Instrumentation Support" - default y - ---help--- - Say Y here to get to see options related to performance measurement, - system-wide debugging, and testing. This option alone does not add any - kernel code. - - If you say N, all options in this submenu will be skipped and - disabled. If you're trying to debug the kernel itself, go see the - Kernel Hacking menu. - -if INSTRUMENTATION - -config PROFILING - bool "Profiling support (EXPERIMENTAL)" - help - Say Y here to enable the extended profiling support mechanisms used - by profilers such as OProfile. - -config OPROFILE - tristate "OProfile system profiling (EXPERIMENTAL)" - depends on PROFILING && !UML - help - OProfile is a profiling system capable of profiling the - whole system, include the kernel, kernel modules, libraries, - and applications. - - If unsure, say N. - -config OPROFILE_ARMV6 - bool - depends on OPROFILE && CPU_V6 && !SMP - default y - select OPROFILE_ARM11_CORE - -config OPROFILE_MPCORE - bool - depends on OPROFILE && CPU_V6 && SMP - default y - select OPROFILE_ARM11_CORE - -config OPROFILE_ARM11_CORE - bool - -config KPROBES - bool "Kprobes" - depends on KALLSYMS && MODULES && !UML && !XIP_KERNEL - help - Kprobes allows you to trap at almost any kernel address and - execute a callback function. register_kprobe() establishes - a probepoint and specifies the callback. Kprobes is useful - for kernel debugging, non-intrusive instrumentation and testing. - If in doubt, say "N". - -config MARKERS - bool "Activate markers" - help - Place an empty function call at each marker site. Can be - dynamically changed for a probe function. - -endif # INSTRUMENTATION diff --git a/arch/arm/common/time-acorn.c b/arch/arm/common/time-acorn.c index 34038eccbba9..d544da414731 100644 --- a/arch/arm/common/time-acorn.c +++ b/arch/arm/common/time-acorn.c @@ -69,9 +69,7 @@ void __init ioctime_init(void) static irqreturn_t ioc_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig index db850a5689eb..efa0485d2f7e 100644 --- a/arch/arm/configs/ixp4xx_defconfig +++ b/arch/arm/configs/ixp4xx_defconfig @@ -1,69 +1,96 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.15 -# Tue Jan 3 03:20:40 2006 +# Linux kernel version: 2.6.24 +# Sun Jan 27 07:33:38 2008 # CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_TIME=y +CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_MMU=y -CONFIG_UID16=y +# CONFIG_NO_IOPORT is not set +CONFIG_GENERIC_HARDIRQS=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ZONE_DMA=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # -# Code maturity level options +# General setup # CONFIG_EXPERIMENTAL=y -CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y +CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set -CONFIG_SYSCTL=y +# CONFIG_TASKSTATS is not set +# CONFIG_USER_NS is not set +# CONFIG_PID_NS is not set # CONFIG_AUDIT is not set -# CONFIG_HOTPLUG is not set -CONFIG_KOBJECT_UEVENT=y # CONFIG_IKCONFIG is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CGROUPS is not set +CONFIG_FAIR_GROUP_SCHED=y +CONFIG_FAIR_USER_SCHED=y +# CONFIG_FAIR_CGROUP_SCHED is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y +CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y +CONFIG_ANON_INODES=y CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_EVENTFD=y CONFIG_SHMEM=y -CONFIG_CC_ALIGN_FUNCTIONS=0 -CONFIG_CC_ALIGN_LABELS=0 -CONFIG_CC_ALIGN_LOOPS=0 -CONFIG_CC_ALIGN_JUMPS=0 +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLUB_DEBUG=y +# CONFIG_SLAB is not set +CONFIG_SLUB=y +# CONFIG_SLOB is not set +CONFIG_SLABINFO=y +CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 - -# -# Loadable module support -# CONFIG_MODULES=y # CONFIG_MODULE_UNLOAD is not set -CONFIG_OBSOLETE_MODPARM=y CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y - -# -# Block layer -# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set +# CONFIG_BLK_DEV_BSG is not set # # IO Schedulers @@ -81,28 +108,39 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # # System Type # +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_AT91 is not set # CONFIG_ARCH_CLPS7500 is not set # CONFIG_ARCH_CLPS711X is not set # CONFIG_ARCH_CO285 is not set # CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set # CONFIG_ARCH_FOOTBRIDGE is not set -# CONFIG_ARCH_INTEGRATOR is not set -# CONFIG_ARCH_IOP3XX is not set -CONFIG_ARCH_IXP4XX=y +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IXP23XX is not set # CONFIG_ARCH_IXP2000 is not set +CONFIG_ARCH_IXP4XX=y # CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_KS8695 is not set +# CONFIG_ARCH_NS9XXX is not set +# CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_PNX4008 is not set # CONFIG_ARCH_PXA is not set # CONFIG_ARCH_RPC is not set # CONFIG_ARCH_SA1100 is not set # CONFIG_ARCH_S3C2410 is not set # CONFIG_ARCH_SHARK is not set # CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_DAVINCI is not set # CONFIG_ARCH_OMAP is not set -# CONFIG_ARCH_VERSATILE is not set -# CONFIG_ARCH_REALVIEW is not set -# CONFIG_ARCH_IMX is not set -# CONFIG_ARCH_H720X is not set -# CONFIG_ARCH_AAEC2000 is not set CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y # @@ -112,8 +150,12 @@ CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y # # IXP4xx Platforms # -CONFIG_ARCH_AVILA=y +CONFIG_MACH_NSLU2=y +CONFIG_MACH_AVILA=y +CONFIG_MACH_LOFT=y CONFIG_ARCH_ADI_COYOTE=y +CONFIG_MACH_GATEWAY7001=y +CONFIG_MACH_WG302V2=y CONFIG_ARCH_IXDP425=y CONFIG_MACH_IXDPG425=y CONFIG_MACH_IXDP465=y @@ -121,15 +163,27 @@ CONFIG_MACH_KIXRP435=y CONFIG_ARCH_IXCDP1100=y CONFIG_ARCH_PRPMC1100=y CONFIG_MACH_NAS100D=y +CONFIG_MACH_DSMG600=y CONFIG_ARCH_IXDP4XX=y CONFIG_CPU_IXP46X=y CONFIG_CPU_IXP43X=y -# CONFIG_MACH_GTWX5715 is not set +CONFIG_MACH_GTWX5715=y # # IXP4xx Options # +CONFIG_DMABOUNCE=y # CONFIG_IXP4XX_INDIRECT_PCI is not set +CONFIG_IXP4XX_QMGR=y +CONFIG_IXP4XX_NPE=y + +# +# Boot options +# + +# +# Power management +# # # Processor Type @@ -140,33 +194,40 @@ CONFIG_CPU_32v5=y CONFIG_CPU_ABRT_EV5T=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_TLB_V4WBI=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y # # Processor Features # # CONFIG_ARM_THUMB is not set CONFIG_CPU_BIG_ENDIAN=y +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_OUTER_CACHE is not set +# CONFIG_IWMMXT is not set CONFIG_XSCALE_PMU=y -CONFIG_DMABOUNCE=y # # Bus support # -CONFIG_ISA_DMA_API=y CONFIG_PCI=y -CONFIG_PCI_LEGACY_PROC=y +CONFIG_PCI_SYSCALL=y +# CONFIG_ARCH_SUPPORTS_MSI is not set +CONFIG_PCI_LEGACY=y # CONFIG_PCI_DEBUG is not set - -# -# PCCARD (PCMCIA/CardBus) support -# # CONFIG_PCCARD is not set # # Kernel Features # +# CONFIG_TICK_ONESHOT is not set +# CONFIG_NO_HZ is not set +# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # CONFIG_PREEMPT is not set -# CONFIG_NO_IDLE_HZ is not set +CONFIG_HZ=100 +CONFIG_AEABI=y +CONFIG_OABI_COMPAT=y # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y @@ -175,7 +236,12 @@ CONFIG_FLATMEM_MANUAL=y CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set +# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set CONFIG_SPLIT_PTLOCK_CPUS=4096 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=1 +CONFIG_BOUNCE=y +CONFIG_VIRT_TO_BUS=y CONFIG_ALIGNMENT_TRAP=y # @@ -185,6 +251,7 @@ CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="console=ttyS0,115200 ip=bootp root=/dev/nfs" # CONFIG_XIP_KERNEL is not set +# CONFIG_KEXEC is not set # # Floating point emulation @@ -203,13 +270,12 @@ CONFIG_FPE_NWFPE=y CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_AOUT is not set # CONFIG_BINFMT_MISC is not set -# CONFIG_ARTHUR is not set # # Power management options # # CONFIG_PM is not set -# CONFIG_APM is not set +CONFIG_SUSPEND_UP_POSSIBLE=y # # Networking @@ -219,11 +285,13 @@ CONFIG_NET=y # # Networking options # -CONFIG_PACKET=m +CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y CONFIG_XFRM=y # CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set # CONFIG_NET_KEY is not set CONFIG_INET=y CONFIG_IP_MULTICAST=y @@ -232,9 +300,7 @@ CONFIG_ASK_IP_FIB_HASH=y # CONFIG_IP_FIB_TRIE is not set CONFIG_IP_FIB_HASH=y CONFIG_IP_MULTIPLE_TABLES=y -CONFIG_IP_ROUTE_FWMARK=y CONFIG_IP_ROUTE_MULTIPATH=y -# CONFIG_IP_ROUTE_MULTIPATH_CACHED is not set CONFIG_IP_ROUTE_VERBOSE=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y @@ -251,15 +317,18 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set -CONFIG_INET_TUNNEL=m +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +# CONFIG_INET_LRO is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y - -# -# IP: Virtual Server Configuration -# +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set CONFIG_IP_VS=m CONFIG_IP_VS_DEBUG=y CONFIG_IP_VS_TAB_BITS=12 @@ -290,6 +359,9 @@ CONFIG_IP_VS_SH=m # IPVS application helper # # CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set CONFIG_BRIDGE_NETFILTER=y @@ -298,70 +370,57 @@ CONFIG_BRIDGE_NETFILTER=y # Core Netfilter Configuration # # CONFIG_NETFILTER_NETLINK is not set +# CONFIG_NF_CONNTRACK_ENABLED is not set +# CONFIG_NF_CONNTRACK is not set +CONFIG_NETFILTER_XTABLES=m +# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set +# CONFIG_NETFILTER_XT_TARGET_DSCP is not set +# CONFIG_NETFILTER_XT_TARGET_MARK is not set +# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set +# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set +# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set +# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set +# CONFIG_NETFILTER_XT_MATCH_DCCP is not set +# CONFIG_NETFILTER_XT_MATCH_DSCP is not set +# CONFIG_NETFILTER_XT_MATCH_ESP is not set +# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set +# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set +# CONFIG_NETFILTER_XT_MATCH_MAC is not set +# CONFIG_NETFILTER_XT_MATCH_MARK is not set +# CONFIG_NETFILTER_XT_MATCH_POLICY is not set +# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set +# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set +# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set +# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set +# CONFIG_NETFILTER_XT_MATCH_REALM is not set +# CONFIG_NETFILTER_XT_MATCH_SCTP is not set +# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set +# CONFIG_NETFILTER_XT_MATCH_STRING is not set +# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set +# CONFIG_NETFILTER_XT_MATCH_TIME is not set +# CONFIG_NETFILTER_XT_MATCH_U32 is not set +# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set # # IP: Netfilter Configuration # -CONFIG_IP_NF_CONNTRACK=m -# CONFIG_IP_NF_CT_ACCT is not set -# CONFIG_IP_NF_CONNTRACK_MARK is not set -# CONFIG_IP_NF_CONNTRACK_EVENTS is not set -# CONFIG_IP_NF_CT_PROTO_SCTP is not set -CONFIG_IP_NF_FTP=m -CONFIG_IP_NF_IRC=m -# CONFIG_IP_NF_NETBIOS_NS is not set -# CONFIG_IP_NF_TFTP is not set -# CONFIG_IP_NF_AMANDA is not set -# CONFIG_IP_NF_PPTP is not set CONFIG_IP_NF_QUEUE=m CONFIG_IP_NF_IPTABLES=m -CONFIG_IP_NF_MATCH_LIMIT=m # CONFIG_IP_NF_MATCH_IPRANGE is not set -CONFIG_IP_NF_MATCH_MAC=m -# CONFIG_IP_NF_MATCH_PKTTYPE is not set -CONFIG_IP_NF_MATCH_MARK=m -CONFIG_IP_NF_MATCH_MULTIPORT=m CONFIG_IP_NF_MATCH_TOS=m # CONFIG_IP_NF_MATCH_RECENT is not set # CONFIG_IP_NF_MATCH_ECN is not set -# CONFIG_IP_NF_MATCH_DSCP is not set -CONFIG_IP_NF_MATCH_AH_ESP=m -CONFIG_IP_NF_MATCH_LENGTH=m +# CONFIG_IP_NF_MATCH_AH is not set CONFIG_IP_NF_MATCH_TTL=m -CONFIG_IP_NF_MATCH_TCPMSS=m -# CONFIG_IP_NF_MATCH_HELPER is not set -CONFIG_IP_NF_MATCH_STATE=m -# CONFIG_IP_NF_MATCH_CONNTRACK is not set CONFIG_IP_NF_MATCH_OWNER=m -# CONFIG_IP_NF_MATCH_PHYSDEV is not set # CONFIG_IP_NF_MATCH_ADDRTYPE is not set -# CONFIG_IP_NF_MATCH_REALM is not set -# CONFIG_IP_NF_MATCH_SCTP is not set -# CONFIG_IP_NF_MATCH_DCCP is not set -# CONFIG_IP_NF_MATCH_COMMENT is not set -# CONFIG_IP_NF_MATCH_HASHLIMIT is not set -# CONFIG_IP_NF_MATCH_STRING is not set CONFIG_IP_NF_FILTER=m CONFIG_IP_NF_TARGET_REJECT=m CONFIG_IP_NF_TARGET_LOG=m CONFIG_IP_NF_TARGET_ULOG=m -CONFIG_IP_NF_TARGET_TCPMSS=m -# CONFIG_IP_NF_TARGET_NFQUEUE is not set -CONFIG_IP_NF_NAT=m -CONFIG_IP_NF_NAT_NEEDED=y -CONFIG_IP_NF_TARGET_MASQUERADE=m -CONFIG_IP_NF_TARGET_REDIRECT=m -# CONFIG_IP_NF_TARGET_NETMAP is not set -# CONFIG_IP_NF_TARGET_SAME is not set -CONFIG_IP_NF_NAT_SNMP_BASIC=m -CONFIG_IP_NF_NAT_IRC=m -CONFIG_IP_NF_NAT_FTP=m CONFIG_IP_NF_MANGLE=m CONFIG_IP_NF_TARGET_TOS=m # CONFIG_IP_NF_TARGET_ECN is not set -# CONFIG_IP_NF_TARGET_DSCP is not set -CONFIG_IP_NF_TARGET_MARK=m -# CONFIG_IP_NF_TARGET_CLASSIFY is not set # CONFIG_IP_NF_TARGET_TTL is not set # CONFIG_IP_NF_RAW is not set CONFIG_IP_NF_ARPTABLES=m @@ -372,16 +431,9 @@ CONFIG_IP_NF_ARPFILTER=m # Bridge: Netfilter Configuration # # CONFIG_BRIDGE_NF_EBTABLES is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# # CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# # CONFIG_IP_SCTP is not set +# CONFIG_TIPC is not set CONFIG_ATM=y CONFIG_ATM_CLIP=y # CONFIG_ATM_CLIP_NO_ICMP is not set @@ -397,25 +449,17 @@ CONFIG_LLC=m CONFIG_IPX=m # CONFIG_IPX_INTERN is not set CONFIG_ATALK=m -CONFIG_DEV_APPLETALK=y +CONFIG_DEV_APPLETALK=m CONFIG_IPDDP=m CONFIG_IPDDP_ENCAP=y CONFIG_IPDDP_DECAP=y CONFIG_X25=m CONFIG_LAPB=m -# CONFIG_NET_DIVERT is not set CONFIG_ECONET=m CONFIG_ECONET_AUNUDP=y CONFIG_ECONET_NATIVE=y CONFIG_WAN_ROUTER=m - -# -# QoS and/or fair queueing -# CONFIG_NET_SCHED=y -CONFIG_NET_SCH_CLK_JIFFIES=y -# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set -# CONFIG_NET_SCH_CLK_CPU is not set # # Queueing/Scheduling @@ -425,6 +469,7 @@ CONFIG_NET_SCH_HTB=m # CONFIG_NET_SCH_HFSC is not set # CONFIG_NET_SCH_ATM is not set CONFIG_NET_SCH_PRIO=m +# CONFIG_NET_SCH_RR is not set CONFIG_NET_SCH_RED=m CONFIG_NET_SCH_SFQ=m CONFIG_NET_SCH_TEQL=m @@ -449,10 +494,17 @@ CONFIG_NET_CLS_U32=m CONFIG_NET_CLS_RSVP=m CONFIG_NET_CLS_RSVP6=m # CONFIG_NET_EMATCH is not set -# CONFIG_NET_CLS_ACT is not set +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=y +# CONFIG_NET_ACT_GACT is not set +# CONFIG_NET_ACT_MIRRED is not set +# CONFIG_NET_ACT_IPT is not set +# CONFIG_NET_ACT_NAT is not set +# CONFIG_NET_ACT_PEDIT is not set +# CONFIG_NET_ACT_SIMP is not set CONFIG_NET_CLS_POLICE=y # CONFIG_NET_CLS_IND is not set -CONFIG_NET_ESTIMATOR=y +CONFIG_NET_SCH_FIFO=y # # Network testing @@ -461,7 +513,18 @@ CONFIG_NET_PKTGEN=m # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set +CONFIG_FIB_RULES=y + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # # Device Drivers @@ -470,19 +533,14 @@ CONFIG_NET_PKTGEN=m # # Generic Driver Options # +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set +CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set - -# -# Connector - unified userspace <-> kernelspace linker -# +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set # CONFIG_MTD_CONCAT is not set @@ -498,11 +556,14 @@ CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1 # User Modules And Translation Layers # CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set +# CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers @@ -528,7 +589,6 @@ CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set -# CONFIG_MTD_XIP is not set # # Mapping drivers for chip access @@ -538,6 +598,7 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y # CONFIG_MTD_ARM_INTEGRATOR is not set CONFIG_MTD_IXP4XX=y # CONFIG_MTD_PCI is not set +# CONFIG_MTD_INTEL_VR_NOR is not set # CONFIG_MTD_PLATRAM is not set # @@ -547,7 +608,6 @@ CONFIG_MTD_IXP4XX=y # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_PHRAM is not set # CONFIG_MTD_MTDRAM is not set -# CONFIG_MTD_BLKMTD is not set # CONFIG_MTD_BLOCK2MTD is not set # @@ -556,33 +616,24 @@ CONFIG_MTD_IXP4XX=y # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set - -# -# NAND Flash Device Drivers -# CONFIG_MTD_NAND=m # CONFIG_MTD_NAND_VERIFY_WRITE is not set +# CONFIG_MTD_NAND_ECC_SMC is not set +# CONFIG_MTD_NAND_MUSEUM_IDS is not set CONFIG_MTD_NAND_IDS=m # CONFIG_MTD_NAND_DISKONCHIP is not set +# CONFIG_MTD_NAND_CAFE is not set # CONFIG_MTD_NAND_NANDSIM is not set - -# -# OneNAND Flash Device Drivers -# +# CONFIG_MTD_NAND_PLATFORM is not set +# CONFIG_MTD_ALAUDA is not set # CONFIG_MTD_ONENAND is not set # -# Parallel port support +# UBI - Unsorted block images # +# CONFIG_MTD_UBI is not set # CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set @@ -592,17 +643,20 @@ CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_CRYPTOLOOP is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_BLK_DEV_INITRD=y +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set - -# -# ATA/ATAPI/MFM/RLL support -# +CONFIG_MISC_DEVICES=y +# CONFIG_PHANTOM is not set +# CONFIG_EEPROM_93CX6 is not set +# CONFIG_SGI_IOC4 is not set +# CONFIG_TIFM_CORE is not set CONFIG_IDE=y +CONFIG_IDE_MAX_HWIFS=4 CONFIG_BLK_DEV_IDE=y # @@ -614,24 +668,28 @@ CONFIG_BLK_DEV_IDEDISK=y # CONFIG_BLK_DEV_IDECD is not set # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set +# CONFIG_BLK_DEV_IDESCSI is not set # CONFIG_IDE_TASK_IOCTL is not set +CONFIG_IDE_PROC_FS=y # # IDE chipset support/bugfixes # CONFIG_IDE_GENERIC=y +# CONFIG_BLK_DEV_PLATFORM is not set + +# +# PCI IDE chipsets support +# CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set +CONFIG_IDEPCI_PCIBUS_ORDER=y # CONFIG_BLK_DEV_OFFBOARD is not set # CONFIG_BLK_DEV_GENERIC is not set # CONFIG_BLK_DEV_OPTI621 is not set -# CONFIG_BLK_DEV_SL82C105 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y -# CONFIG_BLK_DEV_IDEDMA_FORCED is not set -# CONFIG_IDEDMA_PCI_AUTO is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set -# CONFIG_BLK_DEV_AMD74XX is not set CONFIG_BLK_DEV_CMD64X=y # CONFIG_BLK_DEV_TRIFLEX is not set # CONFIG_BLK_DEV_CY82C693 is not set @@ -639,93 +697,163 @@ CONFIG_BLK_DEV_CMD64X=y # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set CONFIG_BLK_DEV_HPT366=y +# CONFIG_BLK_DEV_JMICRON is not set # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT8213 is not set # CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set CONFIG_BLK_DEV_PDC202XX_NEW=y -# CONFIG_PDC202XX_FORCE is not set # CONFIG_BLK_DEV_SVWKS is not set # CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SL82C105 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_VIA82CXXX is not set +# CONFIG_BLK_DEV_TC86C001 is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y -# CONFIG_IDEDMA_IVB is not set -# CONFIG_IDEDMA_AUTO is not set +CONFIG_IDE_ARCH_OBSOLETE_INIT=y # CONFIG_BLK_DEV_HD is not set # # SCSI device support # # CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set - -# -# Multi-device support (RAID and LVM) -# +CONFIG_SCSI=y +CONFIG_SCSI_DMA=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +# CONFIG_SCSI_PROC_FS is not set + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set +# CONFIG_SCSI_SRP_ATTRS is not set +# CONFIG_SCSI_LOWLEVEL is not set +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +# CONFIG_SATA_AHCI is not set +# CONFIG_SATA_SVW is not set +# CONFIG_ATA_PIIX is not set +# CONFIG_SATA_MV is not set +# CONFIG_SATA_NV is not set +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +# CONFIG_SATA_SX4 is not set +# CONFIG_SATA_SIL is not set +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +# CONFIG_SATA_VIA is not set +# CONFIG_SATA_VITESSE is not set +# CONFIG_SATA_INIC162X is not set +# CONFIG_PATA_ALI is not set +# CONFIG_PATA_AMD is not set +CONFIG_PATA_ARTOP=y +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD640_PCI is not set +# CONFIG_PATA_CMD64X is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_CS5530 is not set +# CONFIG_PATA_CYPRESS is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set +# CONFIG_PATA_HPT37X is not set +# CONFIG_PATA_HPT3X2N is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set +# CONFIG_PATA_IT8213 is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MARVELL is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NS87410 is not set +# CONFIG_PATA_NS87415 is not set +# CONFIG_PATA_OPTI is not set +# CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PDC_OLD is not set +# CONFIG_PATA_RADISYS is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SC1200 is not set +# CONFIG_PATA_SERVERWORKS is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_SIS is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set +# CONFIG_PATA_PLATFORM is not set +CONFIG_PATA_IXP4XX_CF=y # CONFIG_MD is not set - -# -# Fusion MPT device support -# # CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support # +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set - -# -# I2O device support -# # CONFIG_I2O is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set +# CONFIG_IFB is not set CONFIG_DUMMY=y # CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set - -# -# ARCnet devices -# +# CONFIG_VETH is not set # CONFIG_ARCNET is not set - -# -# PHY device support -# # CONFIG_PHYLIB is not set - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y CONFIG_MII=y +CONFIG_IXP4XX_ETH=y +# CONFIG_AX88796 is not set # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_SMC91X is not set # CONFIG_DM9000 is not set - -# -# Tulip family network device support -# # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set # CONFIG_ADAPTEC_STARFIRE is not set # CONFIG_B44 is not set # CONFIG_FORCEDETH is not set -# CONFIG_DGRS is not set CONFIG_EEPRO100=y # CONFIG_E100 is not set # CONFIG_FEALNX is not set @@ -738,93 +866,76 @@ CONFIG_EEPRO100=y # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set - -# -# Ethernet (1000 Mbit) -# +# CONFIG_SC92031 is not set +CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set # CONFIG_E1000 is not set +# CONFIG_E1000E is not set +# CONFIG_IP1000 is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_R8169 is not set # CONFIG_SIS190 is not set # CONFIG_SKGE is not set +# CONFIG_SKY2 is not set # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set - -# -# Ethernet (10000 Mbit) -# +# CONFIG_QLA3XXX is not set +# CONFIG_ATL1 is not set +CONFIG_NETDEV_10000=y # CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set +# CONFIG_IXGBE is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set - -# -# Token Ring devices -# +# CONFIG_MYRI10GE is not set +# CONFIG_NETXEN_NIC is not set +# CONFIG_NIU is not set +# CONFIG_MLX4_CORE is not set +# CONFIG_TEHUTI is not set # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) -# -CONFIG_NET_RADIO=y - -# -# Obsolete Wireless cards support (pre-802.11) -# -# CONFIG_STRIP is not set - -# -# Wireless 802.11b ISA/PCI cards support -# -# CONFIG_AIRO is not set -CONFIG_HERMES=y -# CONFIG_PLX_HERMES is not set -# CONFIG_TMD_HERMES is not set -# CONFIG_NORTEL_HERMES is not set -CONFIG_PCI_HERMES=y -# CONFIG_ATMEL is not set - -# -# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# Wireless LAN # -# CONFIG_PRISM54 is not set -# CONFIG_HOSTAP is not set -CONFIG_NET_WIRELESS=y +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # -# Wan interfaces +# USB Network Adapters # +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set CONFIG_WAN=y -# CONFIG_DSCC4 is not set # CONFIG_LANMEDIA is not set -# CONFIG_SYNCLINK_SYNCPPP is not set CONFIG_HDLC=m -CONFIG_HDLC_RAW=y +CONFIG_HDLC_RAW=m # CONFIG_HDLC_RAW_ETH is not set -CONFIG_HDLC_CISCO=y -CONFIG_HDLC_FR=y -CONFIG_HDLC_PPP=y -CONFIG_HDLC_X25=y +CONFIG_HDLC_CISCO=m +CONFIG_HDLC_FR=m +CONFIG_HDLC_PPP=m +CONFIG_HDLC_X25=m # CONFIG_PCI200SYN is not set # CONFIG_WANXL is not set # CONFIG_PC300 is not set +# CONFIG_PC300TOO is not set # CONFIG_FARSYNC is not set +# CONFIG_DSCC4 is not set +# CONFIG_IXP4XX_HSS is not set CONFIG_DLCI=m -CONFIG_DLCI_COUNT=24 CONFIG_DLCI_MAX=8 -CONFIG_WAN_ROUTER_DRIVERS=y +CONFIG_WAN_ROUTER_DRIVERS=m # CONFIG_CYCLADES_SYNC is not set # CONFIG_LAPBETHER is not set # CONFIG_X25_ASY is not set - -# -# ATM drivers -# +CONFIG_ATM_DRIVERS=y # CONFIG_ATM_DUMMY is not set CONFIG_ATM_TCP=m # CONFIG_ATM_LANAI is not set @@ -842,20 +953,19 @@ CONFIG_ATM_TCP=m # CONFIG_HIPPI is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set +# CONFIG_NET_FC is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# # CONFIG_ISDN is not set # # Input device support # CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces @@ -865,7 +975,6 @@ CONFIG_INPUT_MOUSEDEV_PSAUX=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set @@ -875,8 +984,16 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set +CONFIG_INPUT_MISC=y +CONFIG_INPUT_IXP4XX_BEEPER=y +# CONFIG_INPUT_ATI_REMOTE is not set +# CONFIG_INPUT_ATI_REMOTE2 is not set +# CONFIG_INPUT_KEYSPAN_REMOTE is not set +# CONFIG_INPUT_POWERMATE is not set +# CONFIG_INPUT_YEALINK is not set +# CONFIG_INPUT_UINPUT is not set # # Hardware I/O ports @@ -895,7 +1012,9 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_NR_UARTS=2 +CONFIG_SERIAL_8250_RUNTIME_UARTS=2 # CONFIG_SERIAL_8250_EXTENDED is not set # @@ -907,51 +1026,17 @@ CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -CONFIG_WATCHDOG=y -# CONFIG_WATCHDOG_NOWAYOUT is not set - -# -# Watchdog Device Drivers -# -# CONFIG_SOFT_WATCHDOG is not set -CONFIG_IXP4XX_WATCHDOG=y - -# -# PCI-based Watchdog Cards -# -# CONFIG_PCIPCWATCHDOG is not set -# CONFIG_WDTPCI is not set +CONFIG_HW_RANDOM=m +CONFIG_HW_RANDOM_IXP4XX=m # CONFIG_NVRAM is not set -# CONFIG_RTC is not set -# CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# # CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# +CONFIG_DEVPORT=y CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y CONFIG_I2C_CHARDEV=y # @@ -969,57 +1054,68 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set +# CONFIG_I2C_GPIO is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_IOP3XX is not set CONFIG_I2C_IXP4XX=y # CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set -# CONFIG_SCx200_ACB is not set +# CONFIG_I2C_SIMTEC is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set +# CONFIG_I2C_TAOS_EVM is not set # CONFIG_I2C_STUB is not set +# CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set # CONFIG_I2C_VOODOO3 is not set -# CONFIG_I2C_PCA_ISA is not set # # Miscellaneous I2C Chip support # # CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_DS1374 is not set +# CONFIG_DS1682 is not set CONFIG_SENSORS_EEPROM=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCA9539 is not set # CONFIG_SENSORS_PCF8591 is not set -# CONFIG_SENSORS_RTC8564 is not set # CONFIG_SENSORS_MAX6875 is not set -# CONFIG_RTC_X1205_I2C is not set +# CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # -# Hardware Monitoring support +# SPI support # +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set +# CONFIG_W1 is not set +# CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_AD7418 is not set # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ADM1025 is not set # CONFIG_SENSORS_ADM1026 is not set +# CONFIG_SENSORS_ADM1029 is not set # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set -# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ADT7470 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set -# CONFIG_SENSORS_FSCHER is not set -# CONFIG_SENSORS_FSCPOS is not set +# CONFIG_SENSORS_I5K_AMB is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_F71882FG is not set +# CONFIG_SENSORS_F75375S is not set # CONFIG_SENSORS_GL518SM is not set # CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set @@ -1033,67 +1129,268 @@ CONFIG_HWMON=y # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set # CONFIG_SENSORS_LM92 is not set +# CONFIG_SENSORS_LM93 is not set # CONFIG_SENSORS_MAX1619 is not set +# CONFIG_SENSORS_MAX6650 is not set # CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_SIS5595 is not set +# CONFIG_SENSORS_DME1737 is not set # CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_THMC50 is not set # CONFIG_SENSORS_VIA686A is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_SENSORS_VT8231 is not set # CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set +CONFIG_WATCHDOG=y +# CONFIG_WATCHDOG_NOWAYOUT is not set # -# Misc devices +# Watchdog Device Drivers # +# CONFIG_SOFT_WATCHDOG is not set +CONFIG_IXP4XX_WATCHDOG=y # -# Multimedia Capabilities Port drivers +# PCI-based Watchdog Cards # +# CONFIG_PCIPCWATCHDOG is not set +# CONFIG_WDTPCI is not set # -# Multimedia devices +# USB-based Watchdog Cards # -# CONFIG_VIDEO_DEV is not set +# CONFIG_USBPCWATCHDOG is not set # -# Digital Video Broadcasting Devices +# Sonics Silicon Backplane # -# CONFIG_DVB is not set +CONFIG_SSB_POSSIBLE=y +# CONFIG_SSB is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +# CONFIG_DVB_CORE is not set +CONFIG_DAB=y +# CONFIG_USB_DABUSB is not set # # Graphics support # +# CONFIG_DRM is not set +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set # CONFIG_FB is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set # # Sound # # CONFIG_SOUND is not set +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set +# CONFIG_HIDRAW is not set # -# USB support +# USB Input Devices # +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set +CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y -# CONFIG_USB is not set +CONFIG_USB_ARCH_HAS_EHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DEVICE_CLASS is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_EHCI_TT_NEWSCHED is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +CONFIG_USB_UHCI_HCD=y +# CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # # +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set +# CONFIG_USB_MON is not set + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_ADUTUX is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_BERRY_CHARGE is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGET is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_FTDI_ELAN is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TRANCEVIBRATOR is not set +# CONFIG_USB_IOWARRIOR is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# +# CONFIG_USB_ATM is not set + +# # USB Gadget Support # # CONFIG_USB_GADGET is not set +# CONFIG_MMC is not set +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y # -# MMC/SD Card support +# LED drivers +# +# CONFIG_LEDS_IXP4XX is not set +CONFIG_LEDS_GPIO=y + +# +# LED Triggers +# +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_IDE_DISK=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set +# CONFIG_RTC_DRV_TEST is not set + +# +# I2C RTC drivers +# +# CONFIG_RTC_DRV_DS1307 is not set +# CONFIG_RTC_DRV_DS1374 is not set +# CONFIG_RTC_DRV_DS1672 is not set +# CONFIG_RTC_DRV_MAX6900 is not set +# CONFIG_RTC_DRV_RS5C372 is not set +# CONFIG_RTC_DRV_ISL1208 is not set +CONFIG_RTC_DRV_X1205=y +CONFIG_RTC_DRV_PCF8563=y +# CONFIG_RTC_DRV_PCF8583 is not set +# CONFIG_RTC_DRV_M41T80 is not set + +# +# SPI RTC drivers +# + +# +# Platform RTC drivers +# +# CONFIG_RTC_DRV_CMOS is not set +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_STK17TA8 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_M48T86 is not set +# CONFIG_RTC_DRV_M48T59 is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# on-CPU RTC drivers # -# CONFIG_MMC is not set # # File systems @@ -1107,16 +1404,19 @@ CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y # CONFIG_EXT3_FS_SECURITY is not set +# CONFIG_EXT4DEV_FS is not set CONFIG_JBD=y -# CONFIG_JBD_DEBUG is not set CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set @@ -1140,11 +1440,12 @@ CONFIG_DNOTIFY=y # Pseudo filesystems # CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y -# CONFIG_RELAYFS_FS is not set +# CONFIG_CONFIGFS_FS is not set # # Miscellaneous filesystems @@ -1156,13 +1457,15 @@ CONFIG_RAMFS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set -# CONFIG_JFFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_FS_WBUF_VERIFY is not set # CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_FS_XATTR is not set # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y +# CONFIG_JFFS2_LZO is not set CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set # CONFIG_CRAMFS is not set @@ -1171,10 +1474,7 @@ CONFIG_JFFS2_RTIME=y # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set - -# -# Network File Systems -# +CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set @@ -1186,6 +1486,7 @@ CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y +# CONFIG_SUNRPC_BIND34 is not set # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set @@ -1193,7 +1494,6 @@ CONFIG_SUNRPC=y # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types @@ -1213,37 +1513,53 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_SGI_PARTITION is not set # CONFIG_ULTRIX_PARTITION is not set # CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set - -# -# Native Language Support -# +# CONFIG_SYSV68_PARTITION is not set # CONFIG_NLS is not set - -# -# Profiling support -# +# CONFIG_DLM is not set +CONFIG_INSTRUMENTATION=y # CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set # # Kernel hacking # # CONFIG_PRINTK_TIME is not set -CONFIG_DEBUG_KERNEL=y +CONFIG_ENABLE_WARN_DEPRECATED=y +CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y -CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set CONFIG_DETECT_SOFTLOCKUP=y +CONFIG_SCHED_DEBUG=y # CONFIG_SCHEDSTATS is not set -# CONFIG_DEBUG_SLAB is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_SLUB_DEBUG_ON is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set -# CONFIG_DEBUG_FS is not set # CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +# CONFIG_DEBUG_SG is not set CONFIG_FRAME_POINTER=y +CONFIG_FORCED_INLINING=y +# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_SAMPLES is not set # CONFIG_DEBUG_USER is not set CONFIG_DEBUG_ERRORS=y CONFIG_DEBUG_LL=y @@ -1254,22 +1570,22 @@ CONFIG_DEBUG_LL=y # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# +# CONFIG_SECURITY_FILE_CAPABILITIES is not set # CONFIG_CRYPTO is not set # -# Hardware crypto devices -# - -# # Library routines # +CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y +# CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index faa761921153..00d44c6fbfe9 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_PCI) += bios32.o isa.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_KPROBES) += kprobes.o kprobes-decode.o +obj-$(CONFIG_ATAGS_PROC) += atags.o obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o diff --git a/arch/arm/kernel/atags.c b/arch/arm/kernel/atags.c new file mode 100644 index 000000000000..e2e934c38080 --- /dev/null +++ b/arch/arm/kernel/atags.c @@ -0,0 +1,86 @@ +#include <linux/slab.h> +#include <linux/kexec.h> +#include <linux/proc_fs.h> +#include <asm/setup.h> +#include <asm/types.h> +#include <asm/page.h> + +struct buffer { + size_t size; + char *data; +}; +static struct buffer tags_buffer; + +static int +read_buffer(char* page, char** start, off_t off, int count, + int* eof, void* data) +{ + struct buffer *buffer = (struct buffer *)data; + + if (off >= buffer->size) { + *eof = 1; + return 0; + } + + count = min((int) (buffer->size - off), count); + + memcpy(page, &buffer->data[off], count); + + return count; +} + + +static int +create_proc_entries(void) +{ + struct proc_dir_entry* tags_entry; + + tags_entry = create_proc_read_entry("atags", 0400, &proc_root, read_buffer, &tags_buffer); + if (!tags_entry) + return -ENOMEM; + + return 0; +} + + +static char __initdata atags_copy_buf[KEXEC_BOOT_PARAMS_SIZE]; +static char __initdata *atags_copy; + +void __init save_atags(const struct tag *tags) +{ + atags_copy = atags_copy_buf; + memcpy(atags_copy, tags, KEXEC_BOOT_PARAMS_SIZE); +} + + +static int __init init_atags_procfs(void) +{ + struct tag *tag; + int error; + + if (!atags_copy) { + printk(KERN_WARNING "Exporting ATAGs: No saved tags found\n"); + return -EIO; + } + + for (tag = (struct tag *) atags_copy; tag->hdr.size; tag = tag_next(tag)) + ; + + tags_buffer.size = ((char *) tag - atags_copy) + sizeof(tag->hdr); + tags_buffer.data = kmalloc(tags_buffer.size, GFP_KERNEL); + if (tags_buffer.data == NULL) + return -ENOMEM; + memcpy(tags_buffer.data, atags_copy, tags_buffer.size); + + error = create_proc_entries(); + if (error) { + printk(KERN_ERR "Exporting ATAGs: not enough memory\n"); + kfree(tags_buffer.data); + tags_buffer.size = 0; + tags_buffer.data = NULL; + } + + return error; +} + +arch_initcall(init_atags_procfs); diff --git a/arch/arm/kernel/atags.h b/arch/arm/kernel/atags.h new file mode 100644 index 000000000000..e5f028d214a1 --- /dev/null +++ b/arch/arm/kernel/atags.h @@ -0,0 +1,5 @@ +#ifdef CONFIG_ATAGS_PROC +extern void save_atags(struct tag *tags); +#else +static inline void save_atags(struct tag *tags) { } +#endif diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index cecf658e3625..283e14fff993 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -359,7 +359,7 @@ CALL(sys_kexec_load) CALL(sys_utimensat) CALL(sys_signalfd) -/* 350 */ CALL(sys_timerfd) +/* 350 */ CALL(sys_ni_syscall) CALL(sys_eventfd) CALL(sys_fallocate) #ifndef syscalls_counted diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 863c66454f2b..db8f54a3451f 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -21,6 +21,7 @@ extern void setup_mm_for_reboot(char mode); extern unsigned long kexec_start_address; extern unsigned long kexec_indirection_page; extern unsigned long kexec_mach_type; +extern unsigned long kexec_boot_atags; /* * Provide a dummy crash_notes definition while crash dump arrives to arm. @@ -62,6 +63,7 @@ void machine_kexec(struct kimage *image) kexec_start_address = image->start; kexec_indirection_page = page_list; kexec_mach_type = machine_arch_type; + kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; /* copy our kernel relocation code to the control code page */ memcpy(reboot_code_buffer, diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S index 062c111c572f..61930eb09029 100644 --- a/arch/arm/kernel/relocate_kernel.S +++ b/arch/arm/kernel/relocate_kernel.S @@ -7,23 +7,6 @@ .globl relocate_new_kernel relocate_new_kernel: - /* Move boot params back to where the kernel expects them */ - - ldr r0,kexec_boot_params_address - teq r0,#0 - beq 8f - - ldr r1,kexec_boot_params_copy - mov r6,#KEXEC_BOOT_PARAMS_SIZE/4 -7: - ldr r5,[r1],#4 - str r5,[r0],#4 - subs r6,r6,#1 - bne 7b - -8: - /* Boot params moved, now go on with the kernel */ - ldr r0,kexec_indirection_page ldr r1,kexec_start_address @@ -67,7 +50,7 @@ relocate_new_kernel: mov lr,r1 mov r0,#0 ldr r1,kexec_mach_type - ldr r2,kexec_boot_params_address + ldr r2,kexec_boot_atags mov pc,lr .globl kexec_start_address @@ -82,14 +65,9 @@ kexec_indirection_page: kexec_mach_type: .long 0x0 - /* phy addr where new kernel will expect to find boot params */ - .globl kexec_boot_params_address -kexec_boot_params_address: - .long 0x0 - - /* phy addr where old kernel put a copy of orig boot params */ - .globl kexec_boot_params_copy -kexec_boot_params_copy: + /* phy addr of the atags for the new kernel */ + .globl kexec_boot_atags +kexec_boot_atags: .long 0x0 relocate_new_kernel_end: diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index bf56eb337df1..d3941a7b0455 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -24,7 +24,6 @@ #include <linux/interrupt.h> #include <linux/smp.h> #include <linux/fs.h> -#include <linux/kexec.h> #include <asm/cpu.h> #include <asm/elf.h> @@ -39,6 +38,7 @@ #include <asm/mach/time.h> #include "compat.h" +#include "atags.h" #ifndef MEM_SIZE #define MEM_SIZE (16*1024*1024) @@ -62,6 +62,7 @@ extern int root_mountflags; extern void _stext, _text, _etext, __data_start, _edata, _end; unsigned int processor_id; +EXPORT_SYMBOL(processor_id); unsigned int __machine_arch_type; EXPORT_SYMBOL(__machine_arch_type); @@ -784,23 +785,6 @@ static int __init customize_machine(void) } arch_initcall(customize_machine); -#ifdef CONFIG_KEXEC - -/* Physical addr of where the boot params should be for this machine */ -extern unsigned long kexec_boot_params_address; - -/* Physical addr of the buffer into which the boot params are copied */ -extern unsigned long kexec_boot_params_copy; - -/* Pointer to the boot params buffer, for manipulation and display */ -unsigned long kexec_boot_params; -EXPORT_SYMBOL(kexec_boot_params); - -/* The buffer itself - make sure it is sized correctly */ -static unsigned long kexec_boot_params_buf[(KEXEC_BOOT_PARAMS_SIZE + 3) / 4]; - -#endif - void __init setup_arch(char **cmdline_p) { struct tag *tags = (struct tag *)&init_tags; @@ -819,18 +803,6 @@ void __init setup_arch(char **cmdline_p) else if (mdesc->boot_params) tags = phys_to_virt(mdesc->boot_params); -#ifdef CONFIG_KEXEC - kexec_boot_params_copy = virt_to_phys(kexec_boot_params_buf); - kexec_boot_params = (unsigned long)kexec_boot_params_buf; - if (__atags_pointer) { - kexec_boot_params_address = __atags_pointer; - memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE); - } else if (mdesc->boot_params) { - kexec_boot_params_address = mdesc->boot_params; - memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE); - } -#endif - /* * If we have the old style parameters, convert them to * a tag list. @@ -846,6 +818,7 @@ void __init setup_arch(char **cmdline_p) if (tags->hdr.tag == ATAG_CORE) { if (meminfo.nr_banks != 0) squash_mem_tags(tags); + save_atags(tags); parse_tags(tags); } diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index eafbb2b05eb8..eefae1de334c 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -150,7 +150,7 @@ int __cpuinit __cpu_up(unsigned int cpu) secondary_data.pgdir = 0; *pmd_offset(pgd, PHYS_OFFSET) = __pmd(0); - pgd_free(pgd); + pgd_free(&init_mm, pgd); if (ret) { printk(KERN_CRIT "CPU%u: processor failed to boot\n", cpu); @@ -290,6 +290,11 @@ asmlinkage void __cpuinit secondary_start_kernel(void) local_irq_enable(); local_fiq_enable(); + /* + * Setup local timer for this CPU. + */ + local_timer_setup(cpu); + calibrate_delay(); smp_store_cpu_info(cpu); @@ -300,11 +305,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void) cpu_set(cpu, cpu_online_map); /* - * Setup local timer for this CPU. - */ - local_timer_setup(cpu); - - /* * OK, it's off to the idle thread for us */ cpu_idle(); @@ -454,6 +454,27 @@ int smp_call_function(void (*func)(void *info), void *info, int retry, } EXPORT_SYMBOL_GPL(smp_call_function); +int smp_call_function_single(int cpu, void (*func)(void *info), void *info, + int retry, int wait) +{ + /* prevent preemption and reschedule on another processor */ + int current_cpu = get_cpu(); + int ret = 0; + + if (cpu == current_cpu) { + local_irq_disable(); + func(info); + local_irq_enable(); + } else + ret = smp_call_function_on_cpu(func, info, retry, wait, + cpumask_of_cpu(cpu)); + + put_cpu(); + + return ret; +} +EXPORT_SYMBOL_GPL(smp_call_function_single); + void show_ipi_list(struct seq_file *p) { unsigned int cpu; @@ -481,8 +502,7 @@ void show_local_irqs(struct seq_file *p) static void ipi_timer(void) { irq_enter(); - profile_tick(CPU_PROFILING); - update_process_times(user_mode(get_irq_regs())); + local_timer_interrupt(); irq_exit(); } @@ -621,6 +641,11 @@ void smp_send_timer(void) send_ipi_message(mask, IPI_TIMER); } +void smp_timer_broadcast(cpumask_t mask) +{ + send_ipi_message(mask, IPI_TIMER); +} + void smp_send_stop(void) { cpumask_t mask = cpu_online_map; diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 5b0422cdde76..074dcd5d9a7e 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -253,6 +253,36 @@ config AT91_TIMER_HZ system clock (of at least several MHz), rounding is less of a problem so it can be safer to use a decimal values like 100. +choice + prompt "Select a UART for early kernel messages" + +config AT91_EARLY_DBGU + bool "DBGU" + +config AT91_EARLY_USART0 + bool "USART0" + +config AT91_EARLY_USART1 + bool "USART1" + +config AT91_EARLY_USART2 + bool "USART2" + depends on ! ARCH_AT91X40 + +config AT91_EARLY_USART3 + bool "USART3" + depends on (ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9260) + +config AT91_EARLY_USART4 + bool "USART4" + depends on ARCH_AT91SAM9260 + +config AT91_EARLY_USART5 + bool "USART5" + depends on ARCH_AT91SAM9260 + +endchoice + endmenu endif diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c index 5c090c9442f5..e38d23770992 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -49,8 +49,6 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id) volatile long nr_ticks; if (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS) { /* This is a shared interrupt */ - write_seqlock(&xtime_lock); - /* Get number to ticks performed before interrupt and clear PIT interrupt */ nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR)); do { @@ -58,7 +56,6 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id) nr_ticks--; } while (nr_ticks); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } else return IRQ_NONE; /* not handled */ diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index b5daf7f5e011..7b9ce7a336b0 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -47,6 +47,9 @@ extern void at91_irq_resume(void); #define AT91RM9200_BGA 4 /* AT91RM9200 BGA package has 4 banks */ struct at91_gpio_bank { + unsigned chipbase; /* bank's first GPIO number */ + void __iomem *regbase; /* base of register bank */ + struct at91_gpio_bank *next; /* bank sharing same IRQ/clock/... */ unsigned short id; /* peripheral ID */ unsigned long offset; /* offset from system peripheral base */ struct clk *clock; /* associated clock */ diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index 6aeddd68d8af..f629c2b5f0c5 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -33,12 +33,10 @@ static int gpio_banks; static inline void __iomem *pin_to_controller(unsigned pin) { - void __iomem *sys_base = (void __iomem *) AT91_VA_BASE_SYS; - pin -= PIN_BASE; pin /= 32; if (likely(pin < gpio_banks)) - return sys_base + gpio[pin].offset; + return gpio[pin].regbase; return NULL; } @@ -294,11 +292,11 @@ void at91_gpio_suspend(void) int i; for (i = 0; i < gpio_banks; i++) { - u32 pio = gpio[i].offset; + void __iomem *pio = gpio[i].regbase; - backups[i] = at91_sys_read(pio + PIO_IMR); - at91_sys_write(pio + PIO_IDR, backups[i]); - at91_sys_write(pio + PIO_IER, wakeups[i]); + backups[i] = __raw_readl(pio + PIO_IMR); + __raw_writel(backups[i], pio + PIO_IDR); + __raw_writel(wakeups[i], pio + PIO_IER); if (!wakeups[i]) clk_disable(gpio[i].clock); @@ -315,13 +313,13 @@ void at91_gpio_resume(void) int i; for (i = 0; i < gpio_banks; i++) { - u32 pio = gpio[i].offset; + void __iomem *pio = gpio[i].regbase; if (!wakeups[i]) clk_enable(gpio[i].clock); - at91_sys_write(pio + PIO_IDR, wakeups[i]); - at91_sys_write(pio + PIO_IER, backups[i]); + __raw_writel(wakeups[i], pio + PIO_IDR); + __raw_writel(backups[i], pio + PIO_IER); } } @@ -361,7 +359,13 @@ static void gpio_irq_unmask(unsigned pin) static int gpio_irq_type(unsigned pin, unsigned type) { - return (type == IRQT_BOTHEDGE) ? 0 : -EINVAL; + switch (type) { + case IRQ_TYPE_NONE: + case IRQ_TYPE_EDGE_BOTH: + return 0; + default: + return -EINVAL; + } } static struct irq_chip gpio_irqchip = { @@ -376,20 +380,30 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) { unsigned pin; struct irq_desc *gpio; + struct at91_gpio_bank *bank; void __iomem *pio; u32 isr; - pio = get_irq_chip_data(irq); + bank = get_irq_chip_data(irq); + pio = bank->regbase; /* temporarily mask (level sensitive) parent IRQ */ desc->chip->ack(irq); for (;;) { - /* reading ISR acks the pending (edge triggered) GPIO interrupt */ + /* Reading ISR acks pending (edge triggered) GPIO interrupts. + * When there none are pending, we're finished unless we need + * to process multiple banks (like ID_PIOCDE on sam9263). + */ isr = __raw_readl(pio + PIO_ISR) & __raw_readl(pio + PIO_IMR); - if (!isr) - break; + if (!isr) { + if (!bank->next) + break; + bank = bank->next; + pio = bank->regbase; + continue; + } - pin = (unsigned) get_irq_data(irq); + pin = bank->chipbase; gpio = &irq_desc[pin]; while (isr) { @@ -481,24 +495,21 @@ postcore_initcall(at91_gpio_debugfs_init); */ void __init at91_gpio_irq_setup(void) { - unsigned pioc, pin; + unsigned pioc, pin; + struct at91_gpio_bank *this, *prev; - for (pioc = 0, pin = PIN_BASE; - pioc < gpio_banks; - pioc++) { - void __iomem *controller; - unsigned id = gpio[pioc].id; + for (pioc = 0, pin = PIN_BASE, this = gpio, prev = NULL; + pioc++ < gpio_banks; + prev = this, this++) { + unsigned id = this->id; unsigned i; - clk_enable(gpio[pioc].clock); /* enable PIO controller's clock */ - - controller = (void __iomem *) AT91_VA_BASE_SYS + gpio[pioc].offset; - __raw_writel(~0, controller + PIO_IDR); + /* enable PIO controller's clock */ + clk_enable(this->clock); - set_irq_data(id, (void *) pin); - set_irq_chip_data(id, controller); + __raw_writel(~0, this->regbase + PIO_IDR); - for (i = 0; i < 32; i++, pin++) { + for (i = 0, pin = this->chipbase; i < 32; i++, pin++) { /* * Can use the "simple" and not "edge" handler since it's * shorter, and the AIC handles interrupts sanely. @@ -508,6 +519,14 @@ void __init at91_gpio_irq_setup(void) set_irq_flags(pin, IRQF_VALID); } + /* The toplevel handler handles one bank of GPIOs, except + * AT91SAM9263_ID_PIOCDE handles three... PIOC is first in + * the list, so we only set up that handler. + */ + if (prev && prev->next == this) + continue; + + set_irq_chip_data(id, this); set_irq_chained_handler(id, gpio_irq_handler); } pr_info("AT91: %d gpio irqs in %d banks\n", pin - PIN_BASE, gpio_banks); @@ -518,8 +537,20 @@ void __init at91_gpio_irq_setup(void) */ void __init at91_gpio_init(struct at91_gpio_bank *data, int nr_banks) { + unsigned i; + struct at91_gpio_bank *last; + BUG_ON(nr_banks > MAX_GPIO_BANKS); gpio = data; gpio_banks = nr_banks; + + for (i = 0, last = NULL; i < nr_banks; i++, last = data, data++) { + data->chipbase = PIN_BASE + i * 32; + data->regbase = data->offset + (void __iomem *)AT91_VA_BASE_SYS; + + /* AT91SAM9263_ID_PIOCDE groups PIOC, PIOD, PIOE */ + if (last && last->id == data->id) + last->next = data; + } } diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 4b120cc36135..a67defd50438 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -52,7 +52,7 @@ static suspend_state_t target_state; /* * Called after processes are frozen, but before we shutdown devices. */ -static int at91_pm_set_target(suspend_state_t state) +static int at91_pm_begin(suspend_state_t state) { target_state = state; return 0; @@ -202,11 +202,20 @@ error: return 0; } +/* + * Called right prior to thawing processes. + */ +static void at91_pm_end(void) +{ + target_state = PM_SUSPEND_ON; +} + static struct platform_suspend_ops at91_pm_ops ={ - .valid = at91_pm_valid_state, - .set_target = at91_pm_set_target, - .enter = at91_pm_enter, + .valid = at91_pm_valid_state, + .begin = at91_pm_begin, + .enter = at91_pm_enter, + .end = at91_pm_end, }; static int __init at91_pm_init(void) diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index 61b2dfcb89d6..e774447c0592 100644 --- a/arch/arm/mach-ixp4xx/Kconfig +++ b/arch/arm/mach-ixp4xx/Kconfig @@ -189,6 +189,20 @@ config IXP4XX_INDIRECT_PCI need to use the indirect method instead. If you don't know what you need, leave this option unselected. +config IXP4XX_QMGR + tristate "IXP4xx Queue Manager support" + help + This driver supports IXP4xx built-in hardware queue manager + and is automatically selected by Ethernet and HSS drivers. + +config IXP4XX_NPE + tristate "IXP4xx Network Processor Engine support" + select HOTPLUG + select FW_LOADER + help + This driver supports IXP4xx built-in network coprocessors + and is automatically selected by Ethernet and HSS drivers. + endmenu endif diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile index 77e00ade5585..c1956882c48b 100644 --- a/arch/arm/mach-ixp4xx/Makefile +++ b/arch/arm/mach-ixp4xx/Makefile @@ -23,10 +23,12 @@ obj-$(CONFIG_MACH_AVILA) += avila-setup.o obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o -obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o -obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o -obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o +obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o +obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o +obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o +obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o +obj-$(CONFIG_IXP4XX_NPE) += ixp4xx_npe.o diff --git a/arch/arm/mach-ixp4xx/dsmg600-power.c b/arch/arm/mach-ixp4xx/dsmg600-power.c deleted file mode 100644 index 34717872d076..000000000000 --- a/arch/arm/mach-ixp4xx/dsmg600-power.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * arch/arm/mach-ixp4xx/dsmg600-power.c - * - * DSM-G600 Power/Reset driver - * Author: Michael Westerhof <mwester@dls.net> - * - * Based on nslu2-power.c - * Copyright (C) 2005 Tower Technologies - * Author: Alessandro Zummo <a.zummo@towertech.it> - * - * which was based on nslu2-io.c - * Copyright (C) 2004 Karen Spearel - * - * Maintainers: http://www.nslu2-linux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/reboot.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/jiffies.h> -#include <linux/timer.h> - -#include <asm/mach-types.h> - -extern void ctrl_alt_del(void); - -/* This is used to make sure the power-button pusher is serious. The button - * must be held until the value of this counter reaches zero. - */ -static volatile int power_button_countdown; - -/* Must hold the button down for at least this many counts to be processed */ -#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ - -static void dsmg600_power_handler(unsigned long data); -static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0); - -static void dsmg600_power_handler(unsigned long data) -{ - /* This routine is called twice per second to check the - * state of the power button. - */ - - if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) { - - /* IO Pin is 1 (button pushed) */ - if (power_button_countdown == 0) { - /* Signal init to do the ctrlaltdel action, this will bypass - * init if it hasn't started and do a kernel_restart. - */ - ctrl_alt_del(); - - /* Change the state of the power LED to "blink" */ - gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW); - } - power_button_countdown--; - - } else { - power_button_countdown = PBUTTON_HOLDDOWN_COUNT; - } - - mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); -} - -static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id) -{ - /* This is the paper-clip reset, it shuts the machine down directly. */ - machine_power_off(); - - return IRQ_HANDLED; -} - -static int __init dsmg600_power_init(void) -{ - if (!(machine_is_dsmg600())) - return 0; - - if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler, - IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button", - NULL) < 0) { - - printk(KERN_DEBUG "Reset Button IRQ %d not available\n", - DSMG600_RB_IRQ); - - return -EIO; - } - - /* The power button on the D-Link DSM-G600 is on GPIO 15, but - * it cannot handle interrupts on that GPIO line. So we'll - * have to poll it with a kernel timer. - */ - - /* Make sure that the power button GPIO is set up as an input */ - gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN); - - /* Set the initial value for the power button IRQ handler */ - power_button_countdown = PBUTTON_HOLDDOWN_COUNT; - - mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); - - return 0; -} - -static void __exit dsmg600_power_exit(void) -{ - if (!(machine_is_dsmg600())) - return; - - del_timer_sync(&dsmg600_power_timer); - - free_irq(DSMG600_RB_IRQ, NULL); -} - -module_init(dsmg600_power_init); -module_exit(dsmg600_power_exit); - -MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>"); -MODULE_DESCRIPTION("DSM-G600 Power/Reset driver"); -MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c index c473d408aa7c..688659668bdf 100644 --- a/arch/arm/mach-ixp4xx/dsmg600-setup.c +++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c @@ -1,25 +1,37 @@ /* * DSM-G600 board-setup * + * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au> * Copyright (C) 2006 Tower Technologies - * Author: Alessandro Zummo <a.zummo@towertech.it> * - * based ixdp425-setup.c: + * based on ixdp425-setup.c: * Copyright (C) 2003-2004 MontaVista Software, Inc. + * based on nslu2-power.c: + * Copyright (C) 2005 Tower Technologies + * based on nslu2-io.c: + * Copyright (C) 2004 Karen Spearel * * Author: Alessandro Zummo <a.zummo@towertech.it> + * Author: Michael Westerhof <mwester@dls.net> + * Author: Rod Whitby <rod@whitby.id.au> * Maintainers: http://www.nslu2-linux.org/ */ -#include <linux/kernel.h> +#include <linux/irq.h> +#include <linux/jiffies.h> +#include <linux/timer.h> #include <linux/serial.h> #include <linux/serial_8250.h> +#include <linux/leds.h> +#include <linux/reboot.h> +#include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/time.h> +#include <asm/gpio.h> static struct flash_platform_data dsmg600_flash_data = { .map_name = "cfi_probe", @@ -51,29 +63,34 @@ static struct platform_device dsmg600_i2c_gpio = { }, }; -#ifdef CONFIG_LEDS_CLASS -static struct resource dsmg600_led_resources[] = { +static struct i2c_board_info __initdata dsmg600_i2c_board_info [] = { + { + I2C_BOARD_INFO("rtc-pcf8563", 0x51), + }, +}; + +static struct gpio_led dsmg600_led_pins[] = { { - .name = "power", - .start = DSMG600_LED_PWR_GPIO, - .end = DSMG600_LED_PWR_GPIO, - .flags = IXP4XX_GPIO_HIGH, + .name = "power", + .gpio = DSMG600_LED_PWR_GPIO, }, { - .name = "wlan", - .start = DSMG600_LED_WLAN_GPIO, - .end = DSMG600_LED_WLAN_GPIO, - .flags = IXP4XX_GPIO_LOW, + .name = "wlan", + .gpio = DSMG600_LED_WLAN_GPIO, + .active_low = true, }, }; +static struct gpio_led_platform_data dsmg600_led_data = { + .num_leds = ARRAY_SIZE(dsmg600_led_pins), + .leds = dsmg600_led_pins, +}; + static struct platform_device dsmg600_leds = { - .name = "IXP4XX-GPIO-LED", - .id = -1, - .num_resources = ARRAY_SIZE(dsmg600_led_resources), - .resource = dsmg600_led_resources, + .name = "leds-gpio", + .id = -1, + .dev.platform_data = &dsmg600_led_data, }; -#endif static struct resource dsmg600_uart_resources[] = { { @@ -121,6 +138,7 @@ static struct platform_device dsmg600_uart = { static struct platform_device *dsmg600_devices[] __initdata = { &dsmg600_i2c_gpio, &dsmg600_flash, + &dsmg600_leds, }; static void dsmg600_power_off(void) @@ -132,6 +150,57 @@ static void dsmg600_power_off(void) gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH); } +/* This is used to make sure the power-button pusher is serious. The button + * must be held until the value of this counter reaches zero. + */ +static int power_button_countdown; + +/* Must hold the button down for at least this many counts to be processed */ +#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ + +static void dsmg600_power_handler(unsigned long data); +static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0); + +static void dsmg600_power_handler(unsigned long data) +{ + /* This routine is called twice per second to check the + * state of the power button. + */ + + if (gpio_get_value(DSMG600_PB_GPIO)) { + + /* IO Pin is 1 (button pushed) */ + if (power_button_countdown > 0) + power_button_countdown--; + + } else { + + /* Done on button release, to allow for auto-power-on mods. */ + if (power_button_countdown == 0) { + /* Signal init to do the ctrlaltdel action, + * this will bypass init if it hasn't started + * and do a kernel_restart. + */ + ctrl_alt_del(); + + /* Change the state of the power LED to "blink" */ + gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW); + } else { + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + } + } + + mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); +} + +static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id) +{ + /* This is the paper-clip reset, it shuts the machine down directly. */ + machine_power_off(); + + return IRQ_HANDLED; +} + static void __init dsmg600_timer_init(void) { /* The xtal on this machine is non-standard. */ @@ -156,7 +225,8 @@ static void __init dsmg600_init(void) dsmg600_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; - pm_power_off = dsmg600_power_off; + i2c_register_board_info(0, dsmg600_i2c_board_info, + ARRAY_SIZE(dsmg600_i2c_board_info)); /* The UART is required on the DSM-G600 (Redboot cannot use the * NIC) -- do it here so that it does *not* get removed if @@ -166,10 +236,28 @@ static void __init dsmg600_init(void) platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices)); -#ifdef CONFIG_LEDS_CLASS - /* We don't care whether or not this works. */ - (void)platform_device_register(&dsmg600_leds); -#endif + pm_power_off = dsmg600_power_off; + + if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler, + IRQF_DISABLED | IRQF_TRIGGER_LOW, + "DSM-G600 reset button", NULL) < 0) { + + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", + gpio_to_irq(DSMG600_RB_GPIO)); + } + + /* The power button on the D-Link DSM-G600 is on GPIO 15, but + * it cannot handle interrupts on that GPIO line. So we'll + * have to poll it with a kernel timer. + */ + + /* Make sure that the power button GPIO is set up as an input */ + gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN); + + /* Set the initial value for the power button IRQ handler */ + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + + mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); } MACHINE_START(DSMG600, "D-Link DSM-G600 RevA") diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index e89070da28bf..44584afb34a3 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -177,6 +177,31 @@ static struct platform_device ixdp425_uart = { .resource = ixdp425_uart_resources }; +/* Built-in 10/100 Ethernet MAC interfaces */ +static struct eth_plat_info ixdp425_plat_eth[] = { + { + .phy = 0, + .rxq = 3, + .txreadyq = 20, + }, { + .phy = 1, + .rxq = 4, + .txreadyq = 21, + } +}; + +static struct platform_device ixdp425_eth[] = { + { + .name = "ixp4xx_eth", + .id = IXP4XX_ETH_NPEB, + .dev.platform_data = ixdp425_plat_eth, + }, { + .name = "ixp4xx_eth", + .id = IXP4XX_ETH_NPEC, + .dev.platform_data = ixdp425_plat_eth + 1, + } +}; + static struct platform_device *ixdp425_devices[] __initdata = { &ixdp425_i2c_gpio, &ixdp425_flash, @@ -184,7 +209,9 @@ static struct platform_device *ixdp425_devices[] __initdata = { defined(CONFIG_MTD_NAND_PLATFORM_MODULE) &ixdp425_flash_nand, #endif - &ixdp425_uart + &ixdp425_uart, + &ixdp425_eth[0], + &ixdp425_eth[1], }; static void __init ixdp425_init(void) diff --git a/arch/arm/mach-ixp4xx/ixp4xx_npe.c b/arch/arm/mach-ixp4xx/ixp4xx_npe.c new file mode 100644 index 000000000000..83c137ec582c --- /dev/null +++ b/arch/arm/mach-ixp4xx/ixp4xx_npe.c @@ -0,0 +1,741 @@ +/* + * Intel IXP4xx Network Processor Engine driver for Linux + * + * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + * + * The code is based on publicly available information: + * - Intel IXP4xx Developer's Manual and other e-papers + * - Intel IXP400 Access Library Software (BSD license) + * - previous works by Christian Hohnstaedt <chohnstaedt@innominate.com> + * Thanks, Christian. + */ + +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/firmware.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <asm/arch/npe.h> + +#define DEBUG_MSG 0 +#define DEBUG_FW 0 + +#define NPE_COUNT 3 +#define MAX_RETRIES 1000 /* microseconds */ +#define NPE_42X_DATA_SIZE 0x800 /* in dwords */ +#define NPE_46X_DATA_SIZE 0x1000 +#define NPE_A_42X_INSTR_SIZE 0x1000 +#define NPE_B_AND_C_42X_INSTR_SIZE 0x800 +#define NPE_46X_INSTR_SIZE 0x1000 +#define REGS_SIZE 0x1000 + +#define NPE_PHYS_REG 32 + +#define FW_MAGIC 0xFEEDF00D +#define FW_BLOCK_TYPE_INSTR 0x0 +#define FW_BLOCK_TYPE_DATA 0x1 +#define FW_BLOCK_TYPE_EOF 0xF + +/* NPE exec status (read) and command (write) */ +#define CMD_NPE_STEP 0x01 +#define CMD_NPE_START 0x02 +#define CMD_NPE_STOP 0x03 +#define CMD_NPE_CLR_PIPE 0x04 +#define CMD_CLR_PROFILE_CNT 0x0C +#define CMD_RD_INS_MEM 0x10 /* instruction memory */ +#define CMD_WR_INS_MEM 0x11 +#define CMD_RD_DATA_MEM 0x12 /* data memory */ +#define CMD_WR_DATA_MEM 0x13 +#define CMD_RD_ECS_REG 0x14 /* exec access register */ +#define CMD_WR_ECS_REG 0x15 + +#define STAT_RUN 0x80000000 +#define STAT_STOP 0x40000000 +#define STAT_CLEAR 0x20000000 +#define STAT_ECS_K 0x00800000 /* pipeline clean */ + +#define NPE_STEVT 0x1B +#define NPE_STARTPC 0x1C +#define NPE_REGMAP 0x1E +#define NPE_CINDEX 0x1F + +#define INSTR_WR_REG_SHORT 0x0000C000 +#define INSTR_WR_REG_BYTE 0x00004000 +#define INSTR_RD_FIFO 0x0F888220 +#define INSTR_RESET_MBOX 0x0FAC8210 + +#define ECS_BG_CTXT_REG_0 0x00 /* Background Executing Context */ +#define ECS_BG_CTXT_REG_1 0x01 /* Stack level */ +#define ECS_BG_CTXT_REG_2 0x02 +#define ECS_PRI_1_CTXT_REG_0 0x04 /* Priority 1 Executing Context */ +#define ECS_PRI_1_CTXT_REG_1 0x05 /* Stack level */ +#define ECS_PRI_1_CTXT_REG_2 0x06 +#define ECS_PRI_2_CTXT_REG_0 0x08 /* Priority 2 Executing Context */ +#define ECS_PRI_2_CTXT_REG_1 0x09 /* Stack level */ +#define ECS_PRI_2_CTXT_REG_2 0x0A +#define ECS_DBG_CTXT_REG_0 0x0C /* Debug Executing Context */ +#define ECS_DBG_CTXT_REG_1 0x0D /* Stack level */ +#define ECS_DBG_CTXT_REG_2 0x0E +#define ECS_INSTRUCT_REG 0x11 /* NPE Instruction Register */ + +#define ECS_REG_0_ACTIVE 0x80000000 /* all levels */ +#define ECS_REG_0_NEXTPC_MASK 0x1FFF0000 /* BG/PRI1/PRI2 levels */ +#define ECS_REG_0_LDUR_BITS 8 +#define ECS_REG_0_LDUR_MASK 0x00000700 /* all levels */ +#define ECS_REG_1_CCTXT_BITS 16 +#define ECS_REG_1_CCTXT_MASK 0x000F0000 /* all levels */ +#define ECS_REG_1_SELCTXT_BITS 0 +#define ECS_REG_1_SELCTXT_MASK 0x0000000F /* all levels */ +#define ECS_DBG_REG_2_IF 0x00100000 /* debug level */ +#define ECS_DBG_REG_2_IE 0x00080000 /* debug level */ + +/* NPE watchpoint_fifo register bit */ +#define WFIFO_VALID 0x80000000 + +/* NPE messaging_status register bit definitions */ +#define MSGSTAT_OFNE 0x00010000 /* OutFifoNotEmpty */ +#define MSGSTAT_IFNF 0x00020000 /* InFifoNotFull */ +#define MSGSTAT_OFNF 0x00040000 /* OutFifoNotFull */ +#define MSGSTAT_IFNE 0x00080000 /* InFifoNotEmpty */ +#define MSGSTAT_MBINT 0x00100000 /* Mailbox interrupt */ +#define MSGSTAT_IFINT 0x00200000 /* InFifo interrupt */ +#define MSGSTAT_OFINT 0x00400000 /* OutFifo interrupt */ +#define MSGSTAT_WFINT 0x00800000 /* WatchFifo interrupt */ + +/* NPE messaging_control register bit definitions */ +#define MSGCTL_OUT_FIFO 0x00010000 /* enable output FIFO */ +#define MSGCTL_IN_FIFO 0x00020000 /* enable input FIFO */ +#define MSGCTL_OUT_FIFO_WRITE 0x01000000 /* enable FIFO + WRITE */ +#define MSGCTL_IN_FIFO_WRITE 0x02000000 + +/* NPE mailbox_status value for reset */ +#define RESET_MBOX_STAT 0x0000F0F0 + +const char *npe_names[] = { "NPE-A", "NPE-B", "NPE-C" }; + +#define print_npe(pri, npe, fmt, ...) \ + printk(pri "%s: " fmt, npe_name(npe), ## __VA_ARGS__) + +#if DEBUG_MSG +#define debug_msg(npe, fmt, ...) \ + print_npe(KERN_DEBUG, npe, fmt, ## __VA_ARGS__) +#else +#define debug_msg(npe, fmt, ...) +#endif + +static struct { + u32 reg, val; +} ecs_reset[] = { + { ECS_BG_CTXT_REG_0, 0xA0000000 }, + { ECS_BG_CTXT_REG_1, 0x01000000 }, + { ECS_BG_CTXT_REG_2, 0x00008000 }, + { ECS_PRI_1_CTXT_REG_0, 0x20000080 }, + { ECS_PRI_1_CTXT_REG_1, 0x01000000 }, + { ECS_PRI_1_CTXT_REG_2, 0x00008000 }, + { ECS_PRI_2_CTXT_REG_0, 0x20000080 }, + { ECS_PRI_2_CTXT_REG_1, 0x01000000 }, + { ECS_PRI_2_CTXT_REG_2, 0x00008000 }, + { ECS_DBG_CTXT_REG_0, 0x20000000 }, + { ECS_DBG_CTXT_REG_1, 0x00000000 }, + { ECS_DBG_CTXT_REG_2, 0x001E0000 }, + { ECS_INSTRUCT_REG, 0x1003C00F }, +}; + +static struct npe npe_tab[NPE_COUNT] = { + { + .id = 0, + .regs = (struct npe_regs __iomem *)IXP4XX_NPEA_BASE_VIRT, + .regs_phys = IXP4XX_NPEA_BASE_PHYS, + }, { + .id = 1, + .regs = (struct npe_regs __iomem *)IXP4XX_NPEB_BASE_VIRT, + .regs_phys = IXP4XX_NPEB_BASE_PHYS, + }, { + .id = 2, + .regs = (struct npe_regs __iomem *)IXP4XX_NPEC_BASE_VIRT, + .regs_phys = IXP4XX_NPEC_BASE_PHYS, + } +}; + +int npe_running(struct npe *npe) +{ + return (__raw_readl(&npe->regs->exec_status_cmd) & STAT_RUN) != 0; +} + +static void npe_cmd_write(struct npe *npe, u32 addr, int cmd, u32 data) +{ + __raw_writel(data, &npe->regs->exec_data); + __raw_writel(addr, &npe->regs->exec_addr); + __raw_writel(cmd, &npe->regs->exec_status_cmd); +} + +static u32 npe_cmd_read(struct npe *npe, u32 addr, int cmd) +{ + __raw_writel(addr, &npe->regs->exec_addr); + __raw_writel(cmd, &npe->regs->exec_status_cmd); + /* Iintroduce extra read cycles after issuing read command to NPE + so that we read the register after the NPE has updated it. + This is to overcome race condition between XScale and NPE */ + __raw_readl(&npe->regs->exec_data); + __raw_readl(&npe->regs->exec_data); + return __raw_readl(&npe->regs->exec_data); +} + +static void npe_clear_active(struct npe *npe, u32 reg) +{ + u32 val = npe_cmd_read(npe, reg, CMD_RD_ECS_REG); + npe_cmd_write(npe, reg, CMD_WR_ECS_REG, val & ~ECS_REG_0_ACTIVE); +} + +static void npe_start(struct npe *npe) +{ + /* ensure only Background Context Stack Level is active */ + npe_clear_active(npe, ECS_PRI_1_CTXT_REG_0); + npe_clear_active(npe, ECS_PRI_2_CTXT_REG_0); + npe_clear_active(npe, ECS_DBG_CTXT_REG_0); + + __raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd); + __raw_writel(CMD_NPE_START, &npe->regs->exec_status_cmd); +} + +static void npe_stop(struct npe *npe) +{ + __raw_writel(CMD_NPE_STOP, &npe->regs->exec_status_cmd); + __raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd); /*FIXME?*/ +} + +static int __must_check npe_debug_instr(struct npe *npe, u32 instr, u32 ctx, + u32 ldur) +{ + u32 wc; + int i; + + /* set the Active bit, and the LDUR, in the debug level */ + npe_cmd_write(npe, ECS_DBG_CTXT_REG_0, CMD_WR_ECS_REG, + ECS_REG_0_ACTIVE | (ldur << ECS_REG_0_LDUR_BITS)); + + /* set CCTXT at ECS DEBUG L3 to specify in which context to execute + the instruction, and set SELCTXT at ECS DEBUG Level to specify + which context store to access. + Debug ECS Level Reg 1 has form 0x000n000n, where n = context number + */ + npe_cmd_write(npe, ECS_DBG_CTXT_REG_1, CMD_WR_ECS_REG, + (ctx << ECS_REG_1_CCTXT_BITS) | + (ctx << ECS_REG_1_SELCTXT_BITS)); + + /* clear the pipeline */ + __raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd); + + /* load NPE instruction into the instruction register */ + npe_cmd_write(npe, ECS_INSTRUCT_REG, CMD_WR_ECS_REG, instr); + + /* we need this value later to wait for completion of NPE execution + step */ + wc = __raw_readl(&npe->regs->watch_count); + + /* issue a Step One command via the Execution Control register */ + __raw_writel(CMD_NPE_STEP, &npe->regs->exec_status_cmd); + + /* Watch Count register increments when NPE completes an instruction */ + for (i = 0; i < MAX_RETRIES; i++) { + if (wc != __raw_readl(&npe->regs->watch_count)) + return 0; + udelay(1); + } + + print_npe(KERN_ERR, npe, "reset: npe_debug_instr(): timeout\n"); + return -ETIMEDOUT; +} + +static int __must_check npe_logical_reg_write8(struct npe *npe, u32 addr, + u8 val, u32 ctx) +{ + /* here we build the NPE assembler instruction: mov8 d0, #0 */ + u32 instr = INSTR_WR_REG_BYTE | /* OpCode */ + addr << 9 | /* base Operand */ + (val & 0x1F) << 4 | /* lower 5 bits to immediate data */ + (val & ~0x1F) << (18 - 5);/* higher 3 bits to CoProc instr. */ + return npe_debug_instr(npe, instr, ctx, 1); /* execute it */ +} + +static int __must_check npe_logical_reg_write16(struct npe *npe, u32 addr, + u16 val, u32 ctx) +{ + /* here we build the NPE assembler instruction: mov16 d0, #0 */ + u32 instr = INSTR_WR_REG_SHORT | /* OpCode */ + addr << 9 | /* base Operand */ + (val & 0x1F) << 4 | /* lower 5 bits to immediate data */ + (val & ~0x1F) << (18 - 5);/* higher 11 bits to CoProc instr. */ + return npe_debug_instr(npe, instr, ctx, 1); /* execute it */ +} + +static int __must_check npe_logical_reg_write32(struct npe *npe, u32 addr, + u32 val, u32 ctx) +{ + /* write in 16 bit steps first the high and then the low value */ + if (npe_logical_reg_write16(npe, addr, val >> 16, ctx)) + return -ETIMEDOUT; + return npe_logical_reg_write16(npe, addr + 2, val & 0xFFFF, ctx); +} + +static int npe_reset(struct npe *npe) +{ + u32 val, ctl, exec_count, ctx_reg2; + int i; + + ctl = (__raw_readl(&npe->regs->messaging_control) | 0x3F000000) & + 0x3F3FFFFF; + + /* disable parity interrupt */ + __raw_writel(ctl & 0x3F00FFFF, &npe->regs->messaging_control); + + /* pre exec - debug instruction */ + /* turn off the halt bit by clearing Execution Count register. */ + exec_count = __raw_readl(&npe->regs->exec_count); + __raw_writel(0, &npe->regs->exec_count); + /* ensure that IF and IE are on (temporarily), so that we don't end up + stepping forever */ + ctx_reg2 = npe_cmd_read(npe, ECS_DBG_CTXT_REG_2, CMD_RD_ECS_REG); + npe_cmd_write(npe, ECS_DBG_CTXT_REG_2, CMD_WR_ECS_REG, ctx_reg2 | + ECS_DBG_REG_2_IF | ECS_DBG_REG_2_IE); + + /* clear the FIFOs */ + while (__raw_readl(&npe->regs->watchpoint_fifo) & WFIFO_VALID) + ; + while (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_OFNE) + /* read from the outFIFO until empty */ + print_npe(KERN_DEBUG, npe, "npe_reset: read FIFO = 0x%X\n", + __raw_readl(&npe->regs->in_out_fifo)); + + while (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE) + /* step execution of the NPE intruction to read inFIFO using + the Debug Executing Context stack */ + if (npe_debug_instr(npe, INSTR_RD_FIFO, 0, 0)) + return -ETIMEDOUT; + + /* reset the mailbox reg from the XScale side */ + __raw_writel(RESET_MBOX_STAT, &npe->regs->mailbox_status); + /* from NPE side */ + if (npe_debug_instr(npe, INSTR_RESET_MBOX, 0, 0)) + return -ETIMEDOUT; + + /* Reset the physical registers in the NPE register file */ + for (val = 0; val < NPE_PHYS_REG; val++) { + if (npe_logical_reg_write16(npe, NPE_REGMAP, val >> 1, 0)) + return -ETIMEDOUT; + /* address is either 0 or 4 */ + if (npe_logical_reg_write32(npe, (val & 1) * 4, 0, 0)) + return -ETIMEDOUT; + } + + /* Reset the context store = each context's Context Store registers */ + + /* Context 0 has no STARTPC. Instead, this value is used to set NextPC + for Background ECS, to set where NPE starts executing code */ + val = npe_cmd_read(npe, ECS_BG_CTXT_REG_0, CMD_RD_ECS_REG); + val &= ~ECS_REG_0_NEXTPC_MASK; + val |= (0 /* NextPC */ << 16) & ECS_REG_0_NEXTPC_MASK; + npe_cmd_write(npe, ECS_BG_CTXT_REG_0, CMD_WR_ECS_REG, val); + + for (i = 0; i < 16; i++) { + if (i) { /* Context 0 has no STEVT nor STARTPC */ + /* STEVT = off, 0x80 */ + if (npe_logical_reg_write8(npe, NPE_STEVT, 0x80, i)) + return -ETIMEDOUT; + if (npe_logical_reg_write16(npe, NPE_STARTPC, 0, i)) + return -ETIMEDOUT; + } + /* REGMAP = d0->p0, d8->p2, d16->p4 */ + if (npe_logical_reg_write16(npe, NPE_REGMAP, 0x820, i)) + return -ETIMEDOUT; + if (npe_logical_reg_write8(npe, NPE_CINDEX, 0, i)) + return -ETIMEDOUT; + } + + /* post exec */ + /* clear active bit in debug level */ + npe_cmd_write(npe, ECS_DBG_CTXT_REG_0, CMD_WR_ECS_REG, 0); + /* clear the pipeline */ + __raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd); + /* restore previous values */ + __raw_writel(exec_count, &npe->regs->exec_count); + npe_cmd_write(npe, ECS_DBG_CTXT_REG_2, CMD_WR_ECS_REG, ctx_reg2); + + /* write reset values to Execution Context Stack registers */ + for (val = 0; val < ARRAY_SIZE(ecs_reset); val++) + npe_cmd_write(npe, ecs_reset[val].reg, CMD_WR_ECS_REG, + ecs_reset[val].val); + + /* clear the profile counter */ + __raw_writel(CMD_CLR_PROFILE_CNT, &npe->regs->exec_status_cmd); + + __raw_writel(0, &npe->regs->exec_count); + __raw_writel(0, &npe->regs->action_points[0]); + __raw_writel(0, &npe->regs->action_points[1]); + __raw_writel(0, &npe->regs->action_points[2]); + __raw_writel(0, &npe->regs->action_points[3]); + __raw_writel(0, &npe->regs->watch_count); + + val = ixp4xx_read_feature_bits(); + /* reset the NPE */ + ixp4xx_write_feature_bits(val & + ~(IXP4XX_FEATURE_RESET_NPEA << npe->id)); + for (i = 0; i < MAX_RETRIES; i++) { + if (!(ixp4xx_read_feature_bits() & + (IXP4XX_FEATURE_RESET_NPEA << npe->id))) + break; /* reset completed */ + udelay(1); + } + if (i == MAX_RETRIES) + return -ETIMEDOUT; + + /* deassert reset */ + ixp4xx_write_feature_bits(val | + (IXP4XX_FEATURE_RESET_NPEA << npe->id)); + for (i = 0; i < MAX_RETRIES; i++) { + if (ixp4xx_read_feature_bits() & + (IXP4XX_FEATURE_RESET_NPEA << npe->id)) + break; /* NPE is back alive */ + udelay(1); + } + if (i == MAX_RETRIES) + return -ETIMEDOUT; + + npe_stop(npe); + + /* restore NPE configuration bus Control Register - parity settings */ + __raw_writel(ctl, &npe->regs->messaging_control); + return 0; +} + + +int npe_send_message(struct npe *npe, const void *msg, const char *what) +{ + const u32 *send = msg; + int cycles = 0; + + debug_msg(npe, "Trying to send message %s [%08X:%08X]\n", + what, send[0], send[1]); + + if (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE) { + debug_msg(npe, "NPE input FIFO not empty\n"); + return -EIO; + } + + __raw_writel(send[0], &npe->regs->in_out_fifo); + + if (!(__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNF)) { + debug_msg(npe, "NPE input FIFO full\n"); + return -EIO; + } + + __raw_writel(send[1], &npe->regs->in_out_fifo); + + while ((cycles < MAX_RETRIES) && + (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE)) { + udelay(1); + cycles++; + } + + if (cycles == MAX_RETRIES) { + debug_msg(npe, "Timeout sending message\n"); + return -ETIMEDOUT; + } + + debug_msg(npe, "Sending a message took %i cycles\n", cycles); + return 0; +} + +int npe_recv_message(struct npe *npe, void *msg, const char *what) +{ + u32 *recv = msg; + int cycles = 0, cnt = 0; + + debug_msg(npe, "Trying to receive message %s\n", what); + + while (cycles < MAX_RETRIES) { + if (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_OFNE) { + recv[cnt++] = __raw_readl(&npe->regs->in_out_fifo); + if (cnt == 2) + break; + } else { + udelay(1); + cycles++; + } + } + + switch(cnt) { + case 1: + debug_msg(npe, "Received [%08X]\n", recv[0]); + break; + case 2: + debug_msg(npe, "Received [%08X:%08X]\n", recv[0], recv[1]); + break; + } + + if (cycles == MAX_RETRIES) { + debug_msg(npe, "Timeout waiting for message\n"); + return -ETIMEDOUT; + } + + debug_msg(npe, "Receiving a message took %i cycles\n", cycles); + return 0; +} + +int npe_send_recv_message(struct npe *npe, void *msg, const char *what) +{ + int result; + u32 *send = msg, recv[2]; + + if ((result = npe_send_message(npe, msg, what)) != 0) + return result; + if ((result = npe_recv_message(npe, recv, what)) != 0) + return result; + + if ((recv[0] != send[0]) || (recv[1] != send[1])) { + debug_msg(npe, "Message %s: unexpected message received\n", + what); + return -EIO; + } + return 0; +} + + +int npe_load_firmware(struct npe *npe, const char *name, struct device *dev) +{ + const struct firmware *fw_entry; + + struct dl_block { + u32 type; + u32 offset; + } *blk; + + struct dl_image { + u32 magic; + u32 id; + u32 size; + union { + u32 data[0]; + struct dl_block blocks[0]; + }; + } *image; + + struct dl_codeblock { + u32 npe_addr; + u32 size; + u32 data[0]; + } *cb; + + int i, j, err, data_size, instr_size, blocks, table_end; + u32 cmd; + + if ((err = request_firmware(&fw_entry, name, dev)) != 0) + return err; + + err = -EINVAL; + if (fw_entry->size < sizeof(struct dl_image)) { + print_npe(KERN_ERR, npe, "incomplete firmware file\n"); + goto err; + } + image = (struct dl_image*)fw_entry->data; + +#if DEBUG_FW + print_npe(KERN_DEBUG, npe, "firmware: %08X %08X %08X (0x%X bytes)\n", + image->magic, image->id, image->size, image->size * 4); +#endif + + if (image->magic == swab32(FW_MAGIC)) { /* swapped file */ + image->id = swab32(image->id); + image->size = swab32(image->size); + } else if (image->magic != FW_MAGIC) { + print_npe(KERN_ERR, npe, "bad firmware file magic: 0x%X\n", + image->magic); + goto err; + } + if ((image->size * 4 + sizeof(struct dl_image)) != fw_entry->size) { + print_npe(KERN_ERR, npe, + "inconsistent size of firmware file\n"); + goto err; + } + if (((image->id >> 24) & 0xF /* NPE ID */) != npe->id) { + print_npe(KERN_ERR, npe, "firmware file NPE ID mismatch\n"); + goto err; + } + if (image->magic == swab32(FW_MAGIC)) + for (i = 0; i < image->size; i++) + image->data[i] = swab32(image->data[i]); + + if (!cpu_is_ixp46x() && ((image->id >> 28) & 0xF /* device ID */)) { + print_npe(KERN_INFO, npe, "IXP46x firmware ignored on " + "IXP42x\n"); + goto err; + } + + if (npe_running(npe)) { + print_npe(KERN_INFO, npe, "unable to load firmware, NPE is " + "already running\n"); + err = -EBUSY; + goto err; + } +#if 0 + npe_stop(npe); + npe_reset(npe); +#endif + + print_npe(KERN_INFO, npe, "firmware functionality 0x%X, " + "revision 0x%X:%X\n", (image->id >> 16) & 0xFF, + (image->id >> 8) & 0xFF, image->id & 0xFF); + + if (!cpu_is_ixp46x()) { + if (!npe->id) + instr_size = NPE_A_42X_INSTR_SIZE; + else + instr_size = NPE_B_AND_C_42X_INSTR_SIZE; + data_size = NPE_42X_DATA_SIZE; + } else { + instr_size = NPE_46X_INSTR_SIZE; + data_size = NPE_46X_DATA_SIZE; + } + + for (blocks = 0; blocks * sizeof(struct dl_block) / 4 < image->size; + blocks++) + if (image->blocks[blocks].type == FW_BLOCK_TYPE_EOF) + break; + if (blocks * sizeof(struct dl_block) / 4 >= image->size) { + print_npe(KERN_INFO, npe, "firmware EOF block marker not " + "found\n"); + goto err; + } + +#if DEBUG_FW + print_npe(KERN_DEBUG, npe, "%i firmware blocks found\n", blocks); +#endif + + table_end = blocks * sizeof(struct dl_block) / 4 + 1 /* EOF marker */; + for (i = 0, blk = image->blocks; i < blocks; i++, blk++) { + if (blk->offset > image->size - sizeof(struct dl_codeblock) / 4 + || blk->offset < table_end) { + print_npe(KERN_INFO, npe, "invalid offset 0x%X of " + "firmware block #%i\n", blk->offset, i); + goto err; + } + + cb = (struct dl_codeblock*)&image->data[blk->offset]; + if (blk->type == FW_BLOCK_TYPE_INSTR) { + if (cb->npe_addr + cb->size > instr_size) + goto too_big; + cmd = CMD_WR_INS_MEM; + } else if (blk->type == FW_BLOCK_TYPE_DATA) { + if (cb->npe_addr + cb->size > data_size) + goto too_big; + cmd = CMD_WR_DATA_MEM; + } else { + print_npe(KERN_INFO, npe, "invalid firmware block #%i " + "type 0x%X\n", i, blk->type); + goto err; + } + if (blk->offset + sizeof(*cb) / 4 + cb->size > image->size) { + print_npe(KERN_INFO, npe, "firmware block #%i doesn't " + "fit in firmware image: type %c, start 0x%X," + " length 0x%X\n", i, + blk->type == FW_BLOCK_TYPE_INSTR ? 'I' : 'D', + cb->npe_addr, cb->size); + goto err; + } + + for (j = 0; j < cb->size; j++) + npe_cmd_write(npe, cb->npe_addr + j, cmd, cb->data[j]); + } + + npe_start(npe); + if (!npe_running(npe)) + print_npe(KERN_ERR, npe, "unable to start\n"); + release_firmware(fw_entry); + return 0; + +too_big: + print_npe(KERN_INFO, npe, "firmware block #%i doesn't fit in NPE " + "memory: type %c, start 0x%X, length 0x%X\n", i, + blk->type == FW_BLOCK_TYPE_INSTR ? 'I' : 'D', + cb->npe_addr, cb->size); +err: + release_firmware(fw_entry); + return err; +} + + +struct npe *npe_request(int id) +{ + if (id < NPE_COUNT) + if (npe_tab[id].valid) + if (try_module_get(THIS_MODULE)) + return &npe_tab[id]; + return NULL; +} + +void npe_release(struct npe *npe) +{ + module_put(THIS_MODULE); +} + + +static int __init npe_init_module(void) +{ + + int i, found = 0; + + for (i = 0; i < NPE_COUNT; i++) { + struct npe *npe = &npe_tab[i]; + if (!(ixp4xx_read_feature_bits() & + (IXP4XX_FEATURE_RESET_NPEA << i))) + continue; /* NPE already disabled or not present */ + if (!(npe->mem_res = request_mem_region(npe->regs_phys, + REGS_SIZE, + npe_name(npe)))) { + print_npe(KERN_ERR, npe, + "failed to request memory region\n"); + continue; + } + + if (npe_reset(npe)) + continue; + npe->valid = 1; + found++; + } + + if (!found) + return -ENOSYS; + return 0; +} + +static void __exit npe_cleanup_module(void) +{ + int i; + + for (i = 0; i < NPE_COUNT; i++) + if (npe_tab[i].mem_res) { + npe_reset(&npe_tab[i]); + release_resource(npe_tab[i].mem_res); + } +} + +module_init(npe_init_module); +module_exit(npe_cleanup_module); + +MODULE_AUTHOR("Krzysztof Halasa"); +MODULE_LICENSE("GPL v2"); + +EXPORT_SYMBOL(npe_names); +EXPORT_SYMBOL(npe_running); +EXPORT_SYMBOL(npe_request); +EXPORT_SYMBOL(npe_release); +EXPORT_SYMBOL(npe_load_firmware); +EXPORT_SYMBOL(npe_send_message); +EXPORT_SYMBOL(npe_recv_message); +EXPORT_SYMBOL(npe_send_recv_message); diff --git a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c new file mode 100644 index 000000000000..e83301325301 --- /dev/null +++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c @@ -0,0 +1,274 @@ +/* + * Intel IXP4xx Queue Manager driver for Linux + * + * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + */ + +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <asm/arch/qmgr.h> + +#define DEBUG 0 + +struct qmgr_regs __iomem *qmgr_regs; +static struct resource *mem_res; +static spinlock_t qmgr_lock; +static u32 used_sram_bitmap[4]; /* 128 16-dword pages */ +static void (*irq_handlers[HALF_QUEUES])(void *pdev); +static void *irq_pdevs[HALF_QUEUES]; + +void qmgr_set_irq(unsigned int queue, int src, + void (*handler)(void *pdev), void *pdev) +{ + u32 __iomem *reg = &qmgr_regs->irqsrc[queue / 8]; /* 8 queues / u32 */ + int bit = (queue % 8) * 4; /* 3 bits + 1 reserved bit per queue */ + unsigned long flags; + + src &= 7; + spin_lock_irqsave(&qmgr_lock, flags); + __raw_writel((__raw_readl(reg) & ~(7 << bit)) | (src << bit), reg); + irq_handlers[queue] = handler; + irq_pdevs[queue] = pdev; + spin_unlock_irqrestore(&qmgr_lock, flags); +} + + +static irqreturn_t qmgr_irq1(int irq, void *pdev) +{ + int i; + u32 val = __raw_readl(&qmgr_regs->irqstat[0]); + __raw_writel(val, &qmgr_regs->irqstat[0]); /* ACK */ + + for (i = 0; i < HALF_QUEUES; i++) + if (val & (1 << i)) + irq_handlers[i](irq_pdevs[i]); + + return val ? IRQ_HANDLED : 0; +} + + +void qmgr_enable_irq(unsigned int queue) +{ + unsigned long flags; + + spin_lock_irqsave(&qmgr_lock, flags); + __raw_writel(__raw_readl(&qmgr_regs->irqen[0]) | (1 << queue), + &qmgr_regs->irqen[0]); + spin_unlock_irqrestore(&qmgr_lock, flags); +} + +void qmgr_disable_irq(unsigned int queue) +{ + unsigned long flags; + + spin_lock_irqsave(&qmgr_lock, flags); + __raw_writel(__raw_readl(&qmgr_regs->irqen[0]) & ~(1 << queue), + &qmgr_regs->irqen[0]); + spin_unlock_irqrestore(&qmgr_lock, flags); +} + +static inline void shift_mask(u32 *mask) +{ + mask[3] = mask[3] << 1 | mask[2] >> 31; + mask[2] = mask[2] << 1 | mask[1] >> 31; + mask[1] = mask[1] << 1 | mask[0] >> 31; + mask[0] <<= 1; +} + +int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, + unsigned int nearly_empty_watermark, + unsigned int nearly_full_watermark) +{ + u32 cfg, addr = 0, mask[4]; /* in 16-dwords */ + int err; + + if (queue >= HALF_QUEUES) + return -ERANGE; + + if ((nearly_empty_watermark | nearly_full_watermark) & ~7) + return -EINVAL; + + switch (len) { + case 16: + cfg = 0 << 24; + mask[0] = 0x1; + break; + case 32: + cfg = 1 << 24; + mask[0] = 0x3; + break; + case 64: + cfg = 2 << 24; + mask[0] = 0xF; + break; + case 128: + cfg = 3 << 24; + mask[0] = 0xFF; + break; + default: + return -EINVAL; + } + + cfg |= nearly_empty_watermark << 26; + cfg |= nearly_full_watermark << 29; + len /= 16; /* in 16-dwords: 1, 2, 4 or 8 */ + mask[1] = mask[2] = mask[3] = 0; + + if (!try_module_get(THIS_MODULE)) + return -ENODEV; + + spin_lock_irq(&qmgr_lock); + if (__raw_readl(&qmgr_regs->sram[queue])) { + err = -EBUSY; + goto err; + } + + while (1) { + if (!(used_sram_bitmap[0] & mask[0]) && + !(used_sram_bitmap[1] & mask[1]) && + !(used_sram_bitmap[2] & mask[2]) && + !(used_sram_bitmap[3] & mask[3])) + break; /* found free space */ + + addr++; + shift_mask(mask); + if (addr + len > ARRAY_SIZE(qmgr_regs->sram)) { + printk(KERN_ERR "qmgr: no free SRAM space for" + " queue %i\n", queue); + err = -ENOMEM; + goto err; + } + } + + used_sram_bitmap[0] |= mask[0]; + used_sram_bitmap[1] |= mask[1]; + used_sram_bitmap[2] |= mask[2]; + used_sram_bitmap[3] |= mask[3]; + __raw_writel(cfg | (addr << 14), &qmgr_regs->sram[queue]); + spin_unlock_irq(&qmgr_lock); + +#if DEBUG + printk(KERN_DEBUG "qmgr: requested queue %i, addr = 0x%02X\n", + queue, addr); +#endif + return 0; + +err: + spin_unlock_irq(&qmgr_lock); + module_put(THIS_MODULE); + return err; +} + +void qmgr_release_queue(unsigned int queue) +{ + u32 cfg, addr, mask[4]; + + BUG_ON(queue >= HALF_QUEUES); /* not in valid range */ + + spin_lock_irq(&qmgr_lock); + cfg = __raw_readl(&qmgr_regs->sram[queue]); + addr = (cfg >> 14) & 0xFF; + + BUG_ON(!addr); /* not requested */ + + switch ((cfg >> 24) & 3) { + case 0: mask[0] = 0x1; break; + case 1: mask[0] = 0x3; break; + case 2: mask[0] = 0xF; break; + case 3: mask[0] = 0xFF; break; + } + + while (addr--) + shift_mask(mask); + + __raw_writel(0, &qmgr_regs->sram[queue]); + + used_sram_bitmap[0] &= ~mask[0]; + used_sram_bitmap[1] &= ~mask[1]; + used_sram_bitmap[2] &= ~mask[2]; + used_sram_bitmap[3] &= ~mask[3]; + irq_handlers[queue] = NULL; /* catch IRQ bugs */ + spin_unlock_irq(&qmgr_lock); + + module_put(THIS_MODULE); +#if DEBUG + printk(KERN_DEBUG "qmgr: released queue %i\n", queue); +#endif +} + +static int qmgr_init(void) +{ + int i, err; + mem_res = request_mem_region(IXP4XX_QMGR_BASE_PHYS, + IXP4XX_QMGR_REGION_SIZE, + "IXP4xx Queue Manager"); + if (mem_res == NULL) + return -EBUSY; + + qmgr_regs = ioremap(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); + if (qmgr_regs == NULL) { + err = -ENOMEM; + goto error_map; + } + + /* reset qmgr registers */ + for (i = 0; i < 4; i++) { + __raw_writel(0x33333333, &qmgr_regs->stat1[i]); + __raw_writel(0, &qmgr_regs->irqsrc[i]); + } + for (i = 0; i < 2; i++) { + __raw_writel(0, &qmgr_regs->stat2[i]); + __raw_writel(0xFFFFFFFF, &qmgr_regs->irqstat[i]); /* clear */ + __raw_writel(0, &qmgr_regs->irqen[i]); + } + + for (i = 0; i < QUEUES; i++) + __raw_writel(0, &qmgr_regs->sram[i]); + + err = request_irq(IRQ_IXP4XX_QM1, qmgr_irq1, 0, + "IXP4xx Queue Manager", NULL); + if (err) { + printk(KERN_ERR "qmgr: failed to request IRQ%i\n", + IRQ_IXP4XX_QM1); + goto error_irq; + } + + used_sram_bitmap[0] = 0xF; /* 4 first pages reserved for config */ + spin_lock_init(&qmgr_lock); + + printk(KERN_INFO "IXP4xx Queue Manager initialized.\n"); + return 0; + +error_irq: + iounmap(qmgr_regs); +error_map: + release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); + return err; +} + +static void qmgr_remove(void) +{ + free_irq(IRQ_IXP4XX_QM1, NULL); + synchronize_irq(IRQ_IXP4XX_QM1); + iounmap(qmgr_regs); + release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); +} + +module_init(qmgr_init); +module_exit(qmgr_remove); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Krzysztof Halasa"); + +EXPORT_SYMBOL(qmgr_regs); +EXPORT_SYMBOL(qmgr_set_irq); +EXPORT_SYMBOL(qmgr_enable_irq); +EXPORT_SYMBOL(qmgr_disable_irq); +EXPORT_SYMBOL(qmgr_request_queue); +EXPORT_SYMBOL(qmgr_release_queue); diff --git a/arch/arm/mach-ixp4xx/nas100d-power.c b/arch/arm/mach-ixp4xx/nas100d-power.c deleted file mode 100644 index 29aa98d3a7fa..000000000000 --- a/arch/arm/mach-ixp4xx/nas100d-power.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * arch/arm/mach-ixp4xx/nas100d-power.c - * - * NAS 100d Power/Reset driver - * - * Copyright (C) 2005 Tower Technologies - * - * based on nas100d-io.c - * Copyright (C) 2004 Karen Spearel - * - * Author: Alessandro Zummo <a.zummo@towertech.it> - * Maintainers: http://www.nslu2-linux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/reboot.h> - -#include <asm/mach-types.h> - -static irqreturn_t nas100d_reset_handler(int irq, void *dev_id) -{ - /* Signal init to do the ctrlaltdel action, this will bypass init if - * it hasn't started and do a kernel_restart. - */ - ctrl_alt_del(); - - return IRQ_HANDLED; -} - -static int __init nas100d_power_init(void) -{ - if (!(machine_is_nas100d())) - return 0; - - set_irq_type(NAS100D_RB_IRQ, IRQT_LOW); - - if (request_irq(NAS100D_RB_IRQ, &nas100d_reset_handler, - IRQF_DISABLED, "NAS100D reset button", NULL) < 0) { - - printk(KERN_DEBUG "Reset Button IRQ %d not available\n", - NAS100D_RB_IRQ); - - return -EIO; - } - - return 0; -} - -static void __exit nas100d_power_exit(void) -{ - if (!(machine_is_nas100d())) - return; - - free_irq(NAS100D_RB_IRQ, NULL); -} - -module_init(nas100d_power_init); -module_exit(nas100d_power_exit); - -MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); -MODULE_DESCRIPTION("NAS100D Power/Reset driver"); -MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c index 54d884fb2517..4cecae84837b 100644 --- a/arch/arm/mach-ixp4xx/nas100d-setup.c +++ b/arch/arm/mach-ixp4xx/nas100d-setup.c @@ -3,8 +3,14 @@ * * NAS 100d board-setup * - * based ixdp425-setup.c: + * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au> + * + * based on ixdp425-setup.c: * Copyright (C) 2003-2004 MontaVista Software, Inc. + * based on nas100d-power.c: + * Copyright (C) 2005 Tower Technologies + * based on nas100d-io.c + * Copyright (C) 2004 Karen Spearel * * Author: Alessandro Zummo <a.zummo@towertech.it> * Author: Rod Whitby <rod@whitby.id.au> @@ -12,15 +18,22 @@ * */ -#include <linux/kernel.h> +#include <linux/if_ether.h> +#include <linux/irq.h> +#include <linux/jiffies.h> +#include <linux/timer.h> #include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/leds.h> +#include <linux/reboot.h> +#include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> +#include <asm/io.h> +#include <asm/gpio.h> static struct flash_platform_data nas100d_flash_data = { .map_name = "cfi_probe", @@ -39,35 +52,40 @@ static struct platform_device nas100d_flash = { .resource = &nas100d_flash_resource, }; -#ifdef CONFIG_LEDS_IXP4XX -static struct resource nas100d_led_resources[] = { +static struct i2c_board_info __initdata nas100d_i2c_board_info [] = { + { + I2C_BOARD_INFO("rtc-pcf8563", 0x51), + }, +}; + +static struct gpio_led nas100d_led_pins[] = { { .name = "wlan", /* green led */ - .start = 0, - .end = 0, - .flags = IXP4XX_GPIO_LOW, + .gpio = NAS100D_LED_WLAN_GPIO, + .active_low = true, }, { - .name = "ready", /* blue power led (off is flashing!) */ - .start = 15, - .end = 15, - .flags = IXP4XX_GPIO_LOW, + .name = "power", /* blue power led (off=flashing) */ + .gpio = NAS100D_LED_PWR_GPIO, + .active_low = true, }, { .name = "disk", /* yellow led */ - .start = 3, - .end = 3, - .flags = IXP4XX_GPIO_LOW, + .gpio = NAS100D_LED_DISK_GPIO, + .active_low = true, }, }; +static struct gpio_led_platform_data nas100d_led_data = { + .num_leds = ARRAY_SIZE(nas100d_led_pins), + .leds = nas100d_led_pins, +}; + static struct platform_device nas100d_leds = { - .name = "IXP4XX-GPIO-LED", + .name = "leds-gpio", .id = -1, - .num_resources = ARRAY_SIZE(nas100d_led_resources), - .resource = nas100d_led_resources, + .dev.platform_data = &nas100d_led_data, }; -#endif static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = { .sda_pin = NAS100D_SDA_PIN, @@ -125,12 +143,28 @@ static struct platform_device nas100d_uart = { .resource = nas100d_uart_resources, }; +/* Built-in 10/100 Ethernet MAC interfaces */ +static struct eth_plat_info nas100d_plat_eth[] = { + { + .phy = 0, + .rxq = 3, + .txreadyq = 20, + } +}; + +static struct platform_device nas100d_eth[] = { + { + .name = "ixp4xx_eth", + .id = IXP4XX_ETH_NPEB, + .dev.platform_data = nas100d_plat_eth, + } +}; + static struct platform_device *nas100d_devices[] __initdata = { &nas100d_i2c_gpio, &nas100d_flash, -#ifdef CONFIG_LEDS_IXP4XX &nas100d_leds, -#endif + &nas100d_eth[0], }; static void nas100d_power_off(void) @@ -144,8 +178,63 @@ static void nas100d_power_off(void) gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH); } +/* This is used to make sure the power-button pusher is serious. The button + * must be held until the value of this counter reaches zero. + */ +static int power_button_countdown; + +/* Must hold the button down for at least this many counts to be processed */ +#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ + +static void nas100d_power_handler(unsigned long data); +static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0); + +static void nas100d_power_handler(unsigned long data) +{ + /* This routine is called twice per second to check the + * state of the power button. + */ + + if (gpio_get_value(NAS100D_PB_GPIO)) { + + /* IO Pin is 1 (button pushed) */ + if (power_button_countdown > 0) + power_button_countdown--; + + } else { + + /* Done on button release, to allow for auto-power-on mods. */ + if (power_button_countdown == 0) { + /* Signal init to do the ctrlaltdel action, + * this will bypass init if it hasn't started + * and do a kernel_restart. + */ + ctrl_alt_del(); + + /* Change the state of the power LED to "blink" */ + gpio_line_set(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW); + } else { + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + } + } + + mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500)); +} + +static irqreturn_t nas100d_reset_handler(int irq, void *dev_id) +{ + /* This is the paper-clip reset, it shuts the machine down directly. */ + machine_power_off(); + + return IRQ_HANDLED; +} + static void __init nas100d_init(void) { + DECLARE_MAC_BUF(mac_buf); + uint8_t __iomem *f; + int i; + ixp4xx_sys_init(); /* gpio 14 and 15 are _not_ clocks */ @@ -155,7 +244,8 @@ static void __init nas100d_init(void) nas100d_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; - pm_power_off = nas100d_power_off; + i2c_register_board_info(0, nas100d_i2c_board_info, + ARRAY_SIZE(nas100d_i2c_board_info)); /* * This is only useful on a modified machine, but it is valuable @@ -165,6 +255,48 @@ static void __init nas100d_init(void) (void)platform_device_register(&nas100d_uart); platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices)); + + pm_power_off = nas100d_power_off; + + if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler, + IRQF_DISABLED | IRQF_TRIGGER_LOW, + "NAS100D reset button", NULL) < 0) { + + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", + gpio_to_irq(NAS100D_RB_GPIO)); + } + + /* The power button on the Iomega NAS100d is on GPIO 14, but + * it cannot handle interrupts on that GPIO line. So we'll + * have to poll it with a kernel timer. + */ + + /* Make sure that the power button GPIO is set up as an input */ + gpio_line_config(NAS100D_PB_GPIO, IXP4XX_GPIO_IN); + + /* Set the initial value for the power button IRQ handler */ + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + + mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500)); + + /* + * Map in a portion of the flash and read the MAC address. + * Since it is stored in BE in the flash itself, we need to + * byteswap it if we're in LE mode. + */ + f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x1000000); + if (f) { + for (i = 0; i < 6; i++) +#ifdef __ARMEB__ + nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + i); +#else + nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + (i^3)); +#endif + iounmap(f); + } + printk(KERN_INFO "NAS100D: Using MAC address %s for port 0\n", + print_mac(mac_buf, nas100d_plat_eth[0].hwaddr)); + } MACHINE_START(NAS100D, "Iomega NAS 100d") diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c deleted file mode 100644 index 6f10dc208320..000000000000 --- a/arch/arm/mach-ixp4xx/nslu2-power.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * arch/arm/mach-ixp4xx/nslu2-power.c - * - * NSLU2 Power/Reset driver - * - * Copyright (C) 2005 Tower Technologies - * - * based on nslu2-io.c - * Copyright (C) 2004 Karen Spearel - * - * Author: Alessandro Zummo <a.zummo@towertech.it> - * Maintainers: http://www.nslu2-linux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/reboot.h> -#include <linux/irq.h> -#include <linux/interrupt.h> - -#include <asm/mach-types.h> - -static irqreturn_t nslu2_power_handler(int irq, void *dev_id) -{ - /* Signal init to do the ctrlaltdel action, this will bypass init if - * it hasn't started and do a kernel_restart. - */ - ctrl_alt_del(); - - return IRQ_HANDLED; -} - -static irqreturn_t nslu2_reset_handler(int irq, void *dev_id) -{ - /* This is the paper-clip reset, it shuts the machine down directly. - */ - machine_power_off(); - - return IRQ_HANDLED; -} - -static int __init nslu2_power_init(void) -{ - if (!(machine_is_nslu2())) - return 0; - - *IXP4XX_GPIO_GPISR = 0x20400000; /* read the 2 irqs to clr */ - - set_irq_type(NSLU2_RB_IRQ, IRQT_LOW); - set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH); - - if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler, - IRQF_DISABLED, "NSLU2 reset button", NULL) < 0) { - - printk(KERN_DEBUG "Reset Button IRQ %d not available\n", - NSLU2_RB_IRQ); - - return -EIO; - } - - if (request_irq(NSLU2_PB_IRQ, &nslu2_power_handler, - IRQF_DISABLED, "NSLU2 power button", NULL) < 0) { - - printk(KERN_DEBUG "Power Button IRQ %d not available\n", - NSLU2_PB_IRQ); - - return -EIO; - } - - return 0; -} - -static void __exit nslu2_power_exit(void) -{ - if (!(machine_is_nslu2())) - return; - - free_irq(NSLU2_RB_IRQ, NULL); - free_irq(NSLU2_PB_IRQ, NULL); -} - -module_init(nslu2_power_init); -module_exit(nslu2_power_exit); - -MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); -MODULE_DESCRIPTION("NSLU2 Power/Reset driver"); -MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index 77277d27fcc5..acaebcbce53a 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -3,27 +3,35 @@ * * NSLU2 board-setup * - * based ixdp425-setup.c: + * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au> + * + * based on ixdp425-setup.c: * Copyright (C) 2003-2004 MontaVista Software, Inc. + * based on nslu2-power.c: + * Copyright (C) 2005 Tower Technologies * * Author: Mark Rakes <mrakes at mac.com> * Author: Rod Whitby <rod@whitby.id.au> + * Author: Alessandro Zummo <a.zummo@towertech.it> * Maintainers: http://www.nslu2-linux.org/ * - * Fixed missing init_time in MACHINE_START kas11 10/22/04 - * Changed to conform to new style __init ixdp425 kas11 10/22/04 */ -#include <linux/kernel.h> +#include <linux/if_ether.h> +#include <linux/irq.h> #include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/leds.h> +#include <linux/reboot.h> +#include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/time.h> +#include <asm/io.h> +#include <asm/gpio.h> static struct flash_platform_data nslu2_flash_data = { .map_name = "cfi_probe", @@ -47,41 +55,43 @@ static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = { .scl_pin = NSLU2_SCL_PIN, }; -#ifdef CONFIG_LEDS_IXP4XX -static struct resource nslu2_led_resources[] = { +static struct i2c_board_info __initdata nslu2_i2c_board_info [] = { + { + I2C_BOARD_INFO("rtc-x1205", 0x6f), + }, +}; + +static struct gpio_led nslu2_led_pins[] = { { .name = "ready", /* green led */ - .start = NSLU2_LED_GRN_GPIO, - .end = NSLU2_LED_GRN_GPIO, - .flags = IXP4XX_GPIO_HIGH, + .gpio = NSLU2_LED_GRN_GPIO, }, { .name = "status", /* red led */ - .start = NSLU2_LED_RED_GPIO, - .end = NSLU2_LED_RED_GPIO, - .flags = IXP4XX_GPIO_HIGH, + .gpio = NSLU2_LED_RED_GPIO, }, { .name = "disk-1", - .start = NSLU2_LED_DISK1_GPIO, - .end = NSLU2_LED_DISK1_GPIO, - .flags = IXP4XX_GPIO_LOW, + .gpio = NSLU2_LED_DISK1_GPIO, + .active_low = true, }, { .name = "disk-2", - .start = NSLU2_LED_DISK2_GPIO, - .end = NSLU2_LED_DISK2_GPIO, - .flags = IXP4XX_GPIO_LOW, + .gpio = NSLU2_LED_DISK2_GPIO, + .active_low = true, }, }; +static struct gpio_led_platform_data nslu2_led_data = { + .num_leds = ARRAY_SIZE(nslu2_led_pins), + .leds = nslu2_led_pins, +}; + static struct platform_device nslu2_leds = { - .name = "IXP4XX-GPIO-LED", + .name = "leds-gpio", .id = -1, - .num_resources = ARRAY_SIZE(nslu2_led_resources), - .resource = nslu2_led_resources, + .dev.platform_data = &nslu2_led_data, }; -#endif static struct platform_device nslu2_i2c_gpio = { .name = "i2c-gpio", @@ -140,13 +150,29 @@ static struct platform_device nslu2_uart = { .resource = nslu2_uart_resources, }; +/* Built-in 10/100 Ethernet MAC interfaces */ +static struct eth_plat_info nslu2_plat_eth[] = { + { + .phy = 1, + .rxq = 3, + .txreadyq = 20, + } +}; + +static struct platform_device nslu2_eth[] = { + { + .name = "ixp4xx_eth", + .id = IXP4XX_ETH_NPEB, + .dev.platform_data = nslu2_plat_eth, + } +}; + static struct platform_device *nslu2_devices[] __initdata = { &nslu2_i2c_gpio, &nslu2_flash, &nslu2_beeper, -#ifdef CONFIG_LEDS_IXP4XX &nslu2_leds, -#endif + &nslu2_eth[0], }; static void nslu2_power_off(void) @@ -160,6 +186,25 @@ static void nslu2_power_off(void) gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH); } +static irqreturn_t nslu2_power_handler(int irq, void *dev_id) +{ + /* Signal init to do the ctrlaltdel action, this will bypass init if + * it hasn't started and do a kernel_restart. + */ + ctrl_alt_del(); + + return IRQ_HANDLED; +} + +static irqreturn_t nslu2_reset_handler(int irq, void *dev_id) +{ + /* This is the paper-clip reset, it shuts the machine down directly. + */ + machine_power_off(); + + return IRQ_HANDLED; +} + static void __init nslu2_timer_init(void) { /* The xtal on this machine is non-standard. */ @@ -175,13 +220,18 @@ static struct sys_timer nslu2_timer = { static void __init nslu2_init(void) { + DECLARE_MAC_BUF(mac_buf); + uint8_t __iomem *f; + int i; + ixp4xx_sys_init(); nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); nslu2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; - pm_power_off = nslu2_power_off; + i2c_register_board_info(0, nslu2_i2c_board_info, + ARRAY_SIZE(nslu2_i2c_board_info)); /* * This is only useful on a modified machine, but it is valuable @@ -191,6 +241,43 @@ static void __init nslu2_init(void) (void)platform_device_register(&nslu2_uart); platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices)); + + pm_power_off = nslu2_power_off; + + if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler, + IRQF_DISABLED | IRQF_TRIGGER_LOW, + "NSLU2 reset button", NULL) < 0) { + + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", + gpio_to_irq(NSLU2_RB_GPIO)); + } + + if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler, + IRQF_DISABLED | IRQF_TRIGGER_HIGH, + "NSLU2 power button", NULL) < 0) { + + printk(KERN_DEBUG "Power Button IRQ %d not available\n", + gpio_to_irq(NSLU2_PB_GPIO)); + } + + /* + * Map in a portion of the flash and read the MAC address. + * Since it is stored in BE in the flash itself, we need to + * byteswap it if we're in LE mode. + */ + f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000); + if (f) { + for (i = 0; i < 6; i++) +#ifdef __ARMEB__ + nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i); +#else + nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3)); +#endif + iounmap(f); + } + printk(KERN_INFO "NSLU2: Using MAC address %s for port 0\n", + print_mac(mac_buf, nslu2_plat_eth[0].hwaddr)); + } MACHINE_START(NSLU2, "Linksys NSLU2") diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index b5c916c0747d..6e0c4f5b5ae6 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -3,10 +3,11 @@ # # Common support (must be linked before board specific support) -obj-y += clock.o devices.o generic.o irq.o dma.o time.o +obj-y += clock.o devices.o generic.o irq.o dma.o \ + time.o gpio.o obj-$(CONFIG_PXA25x) += pxa25x.o obj-$(CONFIG_PXA27x) += pxa27x.o -obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o +obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o smemc.o obj-$(CONFIG_CPU_PXA300) += pxa300.o obj-$(CONFIG_CPU_PXA320) += pxa320.o diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c index 28cfd71c032d..6012177a29a3 100644 --- a/arch/arm/mach-pxa/cm-x270.c +++ b/arch/arm/mach-pxa/cm-x270.c @@ -29,6 +29,7 @@ #include <asm/mach/map.h> #include <asm/arch/pxa-regs.h> +#include <asm/arch/pxa2xx-regs.h> #include <asm/arch/pxafb.h> #include <asm/arch/ohci.h> #include <asm/arch/mmc.h> diff --git a/arch/arm/mach-pxa/corgi_ssp.c b/arch/arm/mach-pxa/corgi_ssp.c index efba65edcd51..31706224a04c 100644 --- a/arch/arm/mach-pxa/corgi_ssp.c +++ b/arch/arm/mach-pxa/corgi_ssp.c @@ -32,7 +32,7 @@ static struct corgissp_machinfo *ssp_machinfo; /* * There are three devices connected to the SSP interface: * 1. A touchscreen controller (TI ADS7846 compatible) - * 2. An LCD contoller (with some Backlight functionality) + * 2. An LCD controller (with some Backlight functionality) * 3. A battery monitoring IC (Maxim MAX1111) * * Each device uses a different speed/mode of communication. diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c index 50ff453ad370..bfccb80ac8ef 100644 --- a/arch/arm/mach-pxa/devices.c +++ b/arch/arm/mach-pxa/devices.c @@ -10,6 +10,7 @@ #include <asm/arch/mmc.h> #include <asm/arch/irda.h> #include <asm/arch/i2c.h> +#include <asm/arch/ohci.h> #include "devices.h" diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 698aeec52961..80721c610d41 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -23,6 +23,7 @@ #include <linux/ioport.h> #include <linux/pm.h> #include <linux/string.h> +#include <linux/sysdev.h> #include <asm/hardware.h> #include <asm/irq.h> @@ -31,7 +32,6 @@ #include <asm/mach/map.h> #include <asm/arch/pxa-regs.h> -#include <asm/arch/gpio.h> #include "generic.h" @@ -66,97 +66,6 @@ unsigned int get_memclk_frequency_10khz(void) EXPORT_SYMBOL(get_memclk_frequency_10khz); /* - * Handy function to set GPIO alternate functions - */ -int pxa_last_gpio; - -int pxa_gpio_mode(int gpio_mode) -{ - unsigned long flags; - int gpio = gpio_mode & GPIO_MD_MASK_NR; - int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; - int gafr; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - local_irq_save(flags); - if (gpio_mode & GPIO_DFLT_LOW) - GPCR(gpio) = GPIO_bit(gpio); - else if (gpio_mode & GPIO_DFLT_HIGH) - GPSR(gpio) = GPIO_bit(gpio); - if (gpio_mode & GPIO_MD_MASK_DIR) - GPDR(gpio) |= GPIO_bit(gpio); - else - GPDR(gpio) &= ~GPIO_bit(gpio); - gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); - GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); - local_irq_restore(flags); - - return 0; -} - -EXPORT_SYMBOL(pxa_gpio_mode); - -int gpio_direction_input(unsigned gpio) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - GPDR(gpio) &= ~mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_input); - -int gpio_direction_output(unsigned gpio, int value) -{ - unsigned long flags; - u32 mask; - - if (gpio > pxa_last_gpio) - return -EINVAL; - - mask = GPIO_bit(gpio); - local_irq_save(flags); - if (value) - GPSR(gpio) = mask; - else - GPCR(gpio) = mask; - GPDR(gpio) |= mask; - local_irq_restore(flags); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_output); - -/* - * Return GPIO level - */ -int pxa_gpio_get_value(unsigned gpio) -{ - return __gpio_get_value(gpio); -} - -EXPORT_SYMBOL(pxa_gpio_get_value); - -/* - * Set output GPIO level - */ -void pxa_gpio_set_value(unsigned gpio, int value) -{ - __gpio_set_value(gpio, value); -} - -EXPORT_SYMBOL(pxa_gpio_set_value); - -/* * Routine to safely enable or disable a clock in the CKEN */ void __pxa_set_cken(int clock, int enable) @@ -171,7 +80,6 @@ void __pxa_set_cken(int clock, int enable) local_irq_restore(flags); } - EXPORT_SYMBOL(__pxa_set_cken); /* @@ -226,3 +134,59 @@ void __init pxa_map_io(void) iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); get_clk_frequency_khz(1); } + +#ifdef CONFIG_PM + +static unsigned long saved_gplr[4]; +static unsigned long saved_gpdr[4]; +static unsigned long saved_grer[4]; +static unsigned long saved_gfer[4]; + +static int pxa_gpio_suspend(struct sys_device *dev, pm_message_t state) +{ + int i, gpio; + + for (gpio = 0, i = 0; gpio < pxa_last_gpio; gpio += 32, i++) { + saved_gplr[i] = GPLR(gpio); + saved_gpdr[i] = GPDR(gpio); + saved_grer[i] = GRER(gpio); + saved_gfer[i] = GFER(gpio); + + /* Clear GPIO transition detect bits */ + GEDR(gpio) = GEDR(gpio); + } + return 0; +} + +static int pxa_gpio_resume(struct sys_device *dev) +{ + int i, gpio; + + for (gpio = 0, i = 0; gpio < pxa_last_gpio; gpio += 32, i++) { + /* restore level with set/clear */ + GPSR(gpio) = saved_gplr[i]; + GPCR(gpio) = ~saved_gplr[i]; + + GRER(gpio) = saved_grer[i]; + GFER(gpio) = saved_gfer[i]; + GPDR(gpio) = saved_gpdr[i]; + } + return 0; +} +#else +#define pxa_gpio_suspend NULL +#define pxa_gpio_resume NULL +#endif + +struct sysdev_class pxa_gpio_sysclass = { + .name = "gpio", + .suspend = pxa_gpio_suspend, + .resume = pxa_gpio_resume, +}; + +static int __init pxa_gpio_init(void) +{ + return sysdev_class_register(&pxa_gpio_sysclass); +} + +core_initcall(pxa_gpio_init); diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h index b30f240a16c7..b3d10b0e52a0 100644 --- a/arch/arm/mach-pxa/generic.h +++ b/arch/arm/mach-pxa/generic.h @@ -16,6 +16,7 @@ extern void __init pxa_init_irq_low(void); extern void __init pxa_init_irq_high(void); extern void __init pxa_init_irq_gpio(int gpio_nr); extern void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int)); +extern void __init pxa_init_gpio(int gpio_nr); extern void __init pxa25x_init_irq(void); extern void __init pxa27x_init_irq(void); extern void __init pxa3xx_init_irq(void); @@ -52,3 +53,6 @@ extern unsigned pxa3xx_get_memclk_frequency_10khz(void); #define pxa3xx_get_clk_frequency_khz(x) (0) #define pxa3xx_get_memclk_frequency_10khz() (0) #endif + +extern struct sysdev_class pxa_irq_sysclass; +extern struct sysdev_class pxa_gpio_sysclass; diff --git a/arch/arm/mach-pxa/gpio.c b/arch/arm/mach-pxa/gpio.c new file mode 100644 index 000000000000..8638dd7dd076 --- /dev/null +++ b/arch/arm/mach-pxa/gpio.c @@ -0,0 +1,197 @@ +/* + * linux/arch/arm/mach-pxa/gpio.c + * + * Generic PXA GPIO handling + * + * Author: Nicolas Pitre + * Created: Jun 15, 2001 + * Copyright: MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> + +#include <asm/gpio.h> +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/arch/pxa-regs.h> + +#include "generic.h" + + +struct pxa_gpio_chip { + struct gpio_chip chip; + void __iomem *regbase; +}; + +int pxa_last_gpio; + +/* + * Configure pins for GPIO or other functions + */ +int pxa_gpio_mode(int gpio_mode) +{ + unsigned long flags; + int gpio = gpio_mode & GPIO_MD_MASK_NR; + int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; + int gafr; + + if (gpio > pxa_last_gpio) + return -EINVAL; + + local_irq_save(flags); + if (gpio_mode & GPIO_DFLT_LOW) + GPCR(gpio) = GPIO_bit(gpio); + else if (gpio_mode & GPIO_DFLT_HIGH) + GPSR(gpio) = GPIO_bit(gpio); + if (gpio_mode & GPIO_MD_MASK_DIR) + GPDR(gpio) |= GPIO_bit(gpio); + else + GPDR(gpio) &= ~GPIO_bit(gpio); + gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); + GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(pxa_gpio_mode); + +static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + unsigned long flags; + u32 mask = 1 << offset; + u32 value; + struct pxa_gpio_chip *pxa; + void __iomem *gpdr; + + pxa = container_of(chip, struct pxa_gpio_chip, chip); + gpdr = pxa->regbase + GPDR_OFFSET; + local_irq_save(flags); + value = __raw_readl(gpdr); + value &= ~mask; + __raw_writel(value, gpdr); + local_irq_restore(flags); + + return 0; +} + +static int pxa_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + unsigned long flags; + u32 mask = 1 << offset; + u32 tmp; + struct pxa_gpio_chip *pxa; + void __iomem *gpdr; + + pxa = container_of(chip, struct pxa_gpio_chip, chip); + __raw_writel(mask, + pxa->regbase + (value ? GPSR_OFFSET : GPCR_OFFSET)); + gpdr = pxa->regbase + GPDR_OFFSET; + local_irq_save(flags); + tmp = __raw_readl(gpdr); + tmp |= mask; + __raw_writel(tmp, gpdr); + local_irq_restore(flags); + + return 0; +} + +/* + * Return GPIO level + */ +static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + u32 mask = 1 << offset; + struct pxa_gpio_chip *pxa; + + pxa = container_of(chip, struct pxa_gpio_chip, chip); + return __raw_readl(pxa->regbase + GPLR_OFFSET) & mask; +} + +/* + * Set output GPIO level + */ +static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + u32 mask = 1 << offset; + struct pxa_gpio_chip *pxa; + + pxa = container_of(chip, struct pxa_gpio_chip, chip); + + if (value) + __raw_writel(mask, pxa->regbase + GPSR_OFFSET); + else + __raw_writel(mask, pxa->regbase + GPCR_OFFSET); +} + +static struct pxa_gpio_chip pxa_gpio_chip[] = { + [0] = { + .regbase = GPIO0_BASE, + .chip = { + .label = "gpio-0", + .direction_input = pxa_gpio_direction_input, + .direction_output = pxa_gpio_direction_output, + .get = pxa_gpio_get, + .set = pxa_gpio_set, + .base = 0, + .ngpio = 32, + }, + }, + [1] = { + .regbase = GPIO1_BASE, + .chip = { + .label = "gpio-1", + .direction_input = pxa_gpio_direction_input, + .direction_output = pxa_gpio_direction_output, + .get = pxa_gpio_get, + .set = pxa_gpio_set, + .base = 32, + .ngpio = 32, + }, + }, + [2] = { + .regbase = GPIO2_BASE, + .chip = { + .label = "gpio-2", + .direction_input = pxa_gpio_direction_input, + .direction_output = pxa_gpio_direction_output, + .get = pxa_gpio_get, + .set = pxa_gpio_set, + .base = 64, + .ngpio = 32, /* 21 for PXA25x */ + }, + }, +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) + [3] = { + .regbase = GPIO3_BASE, + .chip = { + .label = "gpio-3", + .direction_input = pxa_gpio_direction_input, + .direction_output = pxa_gpio_direction_output, + .get = pxa_gpio_get, + .set = pxa_gpio_set, + .base = 96, + .ngpio = 32, + }, + }, +#endif +}; + +void __init pxa_init_gpio(int gpio_nr) +{ + int i; + + /* add a GPIO chip for each register bank. + * the last PXA25x register only contains 21 GPIOs + */ + for (i = 0; i < gpio_nr; i += 32) { + if (i+32 > gpio_nr) + pxa_gpio_chip[i/32].chip.ngpio = gpio_nr - i; + gpiochip_add(&pxa_gpio_chip[i/32].chip); + } +} diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index 07acb45b16ea..36c6a68beca2 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -15,6 +15,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> +#include <linux/sysdev.h> #include <asm/hardware.h> #include <asm/irq.h> @@ -310,6 +311,8 @@ void __init pxa_init_irq_gpio(int gpio_nr) /* Install handler for GPIO>=2 edge detect interrupts */ set_irq_chip(IRQ_GPIO_2_x, &pxa_internal_chip_low); set_irq_chained_handler(IRQ_GPIO_2_x, pxa_gpio_demux_handler); + + pxa_init_gpio(gpio_nr); } void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int)) @@ -321,3 +324,64 @@ void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int)) pxa_low_gpio_chip.set_wake = set_wake; pxa_muxed_gpio_chip.set_wake = set_wake; } + +#ifdef CONFIG_PM +static unsigned long saved_icmr[2]; + +static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state) +{ + switch (dev->id) { + case 0: + saved_icmr[0] = ICMR; + ICMR = 0; + break; +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) + case 1: + saved_icmr[1] = ICMR2; + ICMR2 = 0; + break; +#endif + default: + return -EINVAL; + } + + return 0; +} + +static int pxa_irq_resume(struct sys_device *dev) +{ + switch (dev->id) { + case 0: + ICMR = saved_icmr[0]; + ICLR = 0; + ICCR = 1; + break; +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) + case 1: + ICMR2 = saved_icmr[1]; + ICLR2 = 0; + break; +#endif + default: + return -EINVAL; + } + + return 0; +} +#else +#define pxa_irq_suspend NULL +#define pxa_irq_resume NULL +#endif + +struct sysdev_class pxa_irq_sysclass = { + .name = "irq", + .suspend = pxa_irq_suspend, + .resume = pxa_irq_resume, +}; + +static int __init pxa_irq_init(void) +{ + return sysdev_class_register(&pxa_irq_sysclass); +} + +core_initcall(pxa_irq_init); diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c index ec1b2d8f61c4..f5809adce298 100644 --- a/arch/arm/mach-pxa/mfp.c +++ b/arch/arm/mach-pxa/mfp.c @@ -22,6 +22,7 @@ #include <asm/hardware.h> #include <asm/arch/mfp.h> #include <asm/arch/mfp-pxa3xx.h> +#include <asm/arch/pxa3xx-regs.h> /* mfp_spin_lock is used to ensure that MFP register configuration * (most likely a read-modify-write operation) is atomic, and that @@ -223,11 +224,19 @@ static int pxa3xx_mfp_resume(struct sys_device *d) struct pxa3xx_mfp_pin *p = &mfp_table[pin]; __mfp_config_run(p); } + + /* clear RDH bit when MFP settings are restored + * + * NOTE: the last 3 bits DxS are write-1-to-clear so carefully + * preserve them here in case they will be referenced later + */ + ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S); + return 0; } static struct sysdev_class mfp_sysclass = { - set_kset_name("mfp"), + .name = "mfp", .suspend = pxa3xx_mfp_suspend, .resume = pxa3xx_mfp_resume, }; diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c index 540c3bba5f9a..c14696b9979d 100644 --- a/arch/arm/mach-pxa/pcm027.c +++ b/arch/arm/mach-pxa/pcm027.c @@ -29,6 +29,7 @@ #include <asm/mach/arch.h> #include <asm/arch/hardware.h> #include <asm/arch/pxa-regs.h> +#include <asm/arch/pxa2xx-regs.h> #include <asm/arch/pxa2xx_spi.h> #include <asm/arch/pcm027.h> #include "generic.h" diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index dd54496083cb..209eabf0ed3e 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -164,7 +164,7 @@ static struct resource poodlets_resources[] = { }, }; -static unsigned long poodle_get_hsync_len(void) +static unsigned long poodle_get_hsync_invperiod(void) { return 0; } @@ -174,9 +174,9 @@ static void poodle_null_hsync(void) } static struct corgits_machinfo poodle_ts_machinfo = { - .get_hsync_len = poodle_get_hsync_len, - .put_hsync = poodle_null_hsync, - .wait_hsync = poodle_null_hsync, + .get_hsync_invperiod = poodle_get_hsync_invperiod, + .put_hsync = poodle_null_hsync, + .wait_hsync = poodle_null_hsync, }; static struct platform_device poodle_ts_device = { diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index ddd05bf78e02..599e53fcc2c5 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/suspend.h> +#include <linux/sysdev.h> #include <asm/hardware.h> #include <asm/arch/irqs.h> @@ -141,11 +142,6 @@ static struct clk pxa25x_clks[] = { #define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x #define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] -#define RESTORE_GPLEVEL(n) do { \ - GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \ - GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \ -} while (0) - /* * List of global PXA peripheral registers to preserve. * More ones like CP and general purpose register values are preserved @@ -153,10 +149,6 @@ static struct clk pxa25x_clks[] = { */ enum { SLEEP_SAVE_START = 0, - SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2, - SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2, - SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2, - SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2, SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2, SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U, @@ -165,7 +157,6 @@ enum { SLEEP_SAVE_START = 0, SLEEP_SAVE_PSTR, - SLEEP_SAVE_ICMR, SLEEP_SAVE_CKEN, SLEEP_SAVE_SIZE @@ -174,17 +165,12 @@ enum { SLEEP_SAVE_START = 0, static void pxa25x_cpu_pm_save(unsigned long *sleep_save) { - SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2); - SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2); - SAVE(GRER0); SAVE(GRER1); SAVE(GRER2); - SAVE(GFER0); SAVE(GFER1); SAVE(GFER2); SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2); SAVE(GAFR0_L); SAVE(GAFR0_U); SAVE(GAFR1_L); SAVE(GAFR1_U); SAVE(GAFR2_L); SAVE(GAFR2_U); - SAVE(ICMR); ICMR = 0; SAVE(CKEN); SAVE(PSTR); @@ -198,22 +184,14 @@ static void pxa25x_cpu_pm_restore(unsigned long *sleep_save) PSPR = 0; /* restore registers */ - RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2); - RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2); RESTORE(GAFR0_L); RESTORE(GAFR0_U); RESTORE(GAFR1_L); RESTORE(GAFR1_U); RESTORE(GAFR2_L); RESTORE(GAFR2_U); - RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2); - RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2); RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2); PSSR = PSSR_RDH | PSSR_PH; RESTORE(CKEN); - - ICLR = 0; - ICCR = 1; - RESTORE(ICMR); RESTORE(PSTR); } @@ -304,9 +282,17 @@ static struct platform_device *pxa25x_devices[] __initdata = { &pxa25x_device_assp, }; +static struct sys_device pxa25x_sysdev[] = { + { + .cls = &pxa_irq_sysclass, + }, { + .cls = &pxa_gpio_sysclass, + }, +}; + static int __init pxa25x_init(void) { - int ret = 0; + int i, ret = 0; /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ if (cpu_is_pxa25x()) @@ -320,9 +306,18 @@ static int __init pxa25x_init(void) pxa25x_init_pm(); + for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) { + ret = sysdev_register(&pxa25x_sysdev[i]); + if (ret) + pr_err("failed to register sysdev[%d]\n", i); + } + ret = platform_add_devices(pxa25x_devices, ARRAY_SIZE(pxa25x_devices)); + if (ret) + return ret; } + /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ if (cpu_is_pxa25x()) ret = platform_device_register(&pxa_device_hwuart); diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 96cf274ec7cb..46a951c3e5a0 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/suspend.h> #include <linux/platform_device.h> +#include <linux/sysdev.h> #include <asm/hardware.h> #include <asm/irq.h> @@ -171,11 +172,6 @@ static struct clk pxa27x_clks[] = { #define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x #define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] -#define RESTORE_GPLEVEL(n) do { \ - GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \ - GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \ -} while (0) - /* * List of global PXA peripheral registers to preserve. * More ones like CP and general purpose register values are preserved @@ -183,10 +179,6 @@ static struct clk pxa27x_clks[] = { */ enum { SLEEP_SAVE_START = 0, - SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2, SLEEP_SAVE_GPLR3, - SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2, SLEEP_SAVE_GPDR3, - SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2, SLEEP_SAVE_GRER3, - SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2, SLEEP_SAVE_GFER3, SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2, SLEEP_SAVE_PGSR3, SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U, @@ -196,7 +188,6 @@ enum { SLEEP_SAVE_START = 0, SLEEP_SAVE_PSTR, - SLEEP_SAVE_ICMR, SLEEP_SAVE_CKEN, SLEEP_SAVE_MDREFR, @@ -208,10 +199,6 @@ enum { SLEEP_SAVE_START = 0, void pxa27x_cpu_pm_save(unsigned long *sleep_save) { - SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2); SAVE(GPLR3); - SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2); SAVE(GPDR3); - SAVE(GRER0); SAVE(GRER1); SAVE(GRER2); SAVE(GRER3); - SAVE(GFER0); SAVE(GFER1); SAVE(GFER2); SAVE(GFER3); SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2); SAVE(PGSR3); SAVE(GAFR0_L); SAVE(GAFR0_U); @@ -223,12 +210,8 @@ void pxa27x_cpu_pm_save(unsigned long *sleep_save) SAVE(PWER); SAVE(PCFR); SAVE(PRER); SAVE(PFER); SAVE(PKWR); - SAVE(ICMR); ICMR = 0; SAVE(CKEN); SAVE(PSTR); - - /* Clear GPIO transition detect bits */ - GEDR0 = GEDR0; GEDR1 = GEDR1; GEDR2 = GEDR2; GEDR3 = GEDR3; } void pxa27x_cpu_pm_restore(unsigned long *sleep_save) @@ -237,15 +220,10 @@ void pxa27x_cpu_pm_restore(unsigned long *sleep_save) PSPR = 0; /* restore registers */ - RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); - RESTORE_GPLEVEL(2); RESTORE_GPLEVEL(3); - RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2); RESTORE(GPDR3); RESTORE(GAFR0_L); RESTORE(GAFR0_U); RESTORE(GAFR1_L); RESTORE(GAFR1_U); RESTORE(GAFR2_L); RESTORE(GAFR2_U); RESTORE(GAFR3_L); RESTORE(GAFR3_U); - RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2); RESTORE(GRER3); - RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2); RESTORE(GFER3); RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2); RESTORE(PGSR3); RESTORE(MDREFR); @@ -256,9 +234,6 @@ void pxa27x_cpu_pm_restore(unsigned long *sleep_save) RESTORE(CKEN); - ICLR = 0; - ICCR = 1; - RESTORE(ICMR); RESTORE(PSTR); } @@ -409,9 +384,22 @@ static struct platform_device *devices[] __initdata = { &pxa27x_device_ssp3, }; +static struct sys_device pxa27x_sysdev[] = { + { + .id = 0, + .cls = &pxa_irq_sysclass, + }, { + .id = 1, + .cls = &pxa_irq_sysclass, + }, { + .cls = &pxa_gpio_sysclass, + }, +}; + static int __init pxa27x_init(void) { - int ret = 0; + int i, ret = 0; + if (cpu_is_pxa27x()) { clks_register(pxa27x_clks, ARRAY_SIZE(pxa27x_clks)); @@ -420,8 +408,15 @@ static int __init pxa27x_init(void) pxa27x_init_pm(); + for (i = 0; i < ARRAY_SIZE(pxa27x_sysdev); i++) { + ret = sysdev_register(&pxa27x_sysdev[i]); + if (ret) + pr_err("failed to register sysdev[%d]\n", i); + } + ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } + return ret; } diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index 5cbf057a1b32..e47e67c11afe 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -20,6 +20,7 @@ #include <linux/platform_device.h> #include <linux/irq.h> #include <linux/io.h> +#include <linux/sysdev.h> #include <asm/hardware.h> #include <asm/arch/pxa3xx-regs.h> @@ -39,6 +40,7 @@ #define RO_CLK 60000000 #define ACCR_D0CS (1 << 26) +#define ACCR_PCCE (1 << 11) /* crystal frequency to static memory controller multiplier (SMCFS) */ static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, }; @@ -203,7 +205,6 @@ static struct clk pxa3xx_clks[] = { }; #ifdef CONFIG_PM -#define SLEEP_SAVE_SIZE 4 #define ISRAM_START 0x5c000000 #define ISRAM_SIZE SZ_256K @@ -211,25 +212,29 @@ static struct clk pxa3xx_clks[] = { static void __iomem *sram; static unsigned long wakeup_src; -static void pxa3xx_cpu_pm_save(unsigned long *sleep_save) -{ - pr_debug("PM: CKENA=%08x CKENB=%08x\n", CKENA, CKENB); +#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x +#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] - if (CKENA & (1 << CKEN_USBH)) { - printk(KERN_ERR "PM: USB host clock not stopped?\n"); - CKENA &= ~(1 << CKEN_USBH); - } -// CKENA |= 1 << (CKEN_ISC & 31); +enum { SLEEP_SAVE_START = 0, + SLEEP_SAVE_CKENA, + SLEEP_SAVE_CKENB, + SLEEP_SAVE_ACCR, - /* - * Low power modes require the HSIO2 clock to be enabled. - */ - CKENB |= 1 << (CKEN_HSIO2 & 31); + SLEEP_SAVE_SIZE, +}; + +static void pxa3xx_cpu_pm_save(unsigned long *sleep_save) +{ + SAVE(CKENA); + SAVE(CKENB); + SAVE(ACCR); } static void pxa3xx_cpu_pm_restore(unsigned long *sleep_save) { - CKENB &= ~(1 << (CKEN_HSIO2 & 31)); + RESTORE(ACCR); + RESTORE(CKENA); + RESTORE(CKENB); } /* @@ -265,6 +270,46 @@ static void pxa3xx_cpu_standby(unsigned int pwrmode) printk("PM: AD2D0SR=%08x ASCR=%08x\n", AD2D0SR, ASCR); } +/* + * NOTE: currently, the OBM (OEM Boot Module) binary comes along with + * PXA3xx development kits assumes that the resuming process continues + * with the address stored within the first 4 bytes of SDRAM. The PSPR + * register is used privately by BootROM and OBM, and _must_ be set to + * 0x5c014000 for the moment. + */ +static void pxa3xx_cpu_pm_suspend(void) +{ + volatile unsigned long *p = (volatile void *)0xc0000000; + unsigned long saved_data = *p; + + extern void pxa3xx_cpu_suspend(void); + extern void pxa3xx_cpu_resume(void); + + /* resuming from D2 requires the HSIO2/BOOT/TPM clocks enabled */ + CKENA |= (1 << CKEN_BOOT) | (1 << CKEN_TPM); + CKENB |= 1 << (CKEN_HSIO2 & 0x1f); + + /* clear and setup wakeup source */ + AD3SR = ~0; + AD3ER = wakeup_src; + ASCR = ASCR; + ARSR = ARSR; + + PCFR |= (1u << 13); /* L1_DIS */ + PCFR &= ~((1u << 12) | (1u << 1)); /* L0_EN | SL_ROD */ + + PSPR = 0x5c014000; + + /* overwrite with the resume address */ + *p = virt_to_phys(pxa3xx_cpu_resume); + + pxa3xx_cpu_suspend(); + + *p = saved_data; + + AD3ER = 0; +} + static void pxa3xx_cpu_pm_enter(suspend_state_t state) { /* @@ -279,6 +324,7 @@ static void pxa3xx_cpu_pm_enter(suspend_state_t state) break; case PM_SUSPEND_MEM: + pxa3xx_cpu_pm_suspend(); break; } } @@ -452,9 +498,21 @@ static struct platform_device *devices[] __initdata = { &pxa3xx_device_ssp4, }; +static struct sys_device pxa3xx_sysdev[] = { + { + .id = 0, + .cls = &pxa_irq_sysclass, + }, { + .id = 1, + .cls = &pxa_irq_sysclass, + }, { + .cls = &pxa_gpio_sysclass, + }, +}; + static int __init pxa3xx_init(void) { - int ret = 0; + int i, ret = 0; if (cpu_is_pxa3xx()) { clks_register(pxa3xx_clks, ARRAY_SIZE(pxa3xx_clks)); @@ -464,9 +522,16 @@ static int __init pxa3xx_init(void) pxa3xx_init_pm(); - return platform_add_devices(devices, ARRAY_SIZE(devices)); + for (i = 0; i < ARRAY_SIZE(pxa3xx_sysdev); i++) { + ret = sysdev_register(&pxa3xx_sysdev[i]); + if (ret) + pr_err("failed to register sysdev[%d]\n", i); + } + + ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } - return 0; + + return ret; } subsys_initcall(pxa3xx_init); diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S index 14bb4a93ea52..784716eb7fc5 100644 --- a/arch/arm/mach-pxa/sleep.S +++ b/arch/arm/mach-pxa/sleep.S @@ -50,6 +50,108 @@ pxa_cpu_save_sp: str r0, [r1] ldr pc, [sp], #4 +#ifdef CONFIG_PXA3xx +/* + * pxa3xx_cpu_suspend() - forces CPU into sleep state (S2D3C4) + * + * NOTE: unfortunately, pxa_cpu_save_cp can not be reused here since + * the auxiliary control register address is different between pxa3xx + * and pxa{25x,27x} + */ + +ENTRY(pxa3xx_cpu_suspend) + +#ifndef CONFIG_IWMMXT + mra r2, r3, acc0 +#endif + stmfd sp!, {r2 - r12, lr} @ save registers on stack + + mrc p14, 0, r3, c6, c0, 0 @ clock configuration, for turbo mode + mrc p15, 0, r4, c15, c1, 0 @ CP access reg + mrc p15, 0, r5, c13, c0, 0 @ PID + mrc p15, 0, r6, c3, c0, 0 @ domain ID + mrc p15, 0, r7, c2, c0, 0 @ translation table base addr + mrc p15, 0, r8, c1, c0, 1 @ auxiliary control reg + mrc p15, 0, r9, c1, c0, 0 @ control reg + + bic r3, r3, #2 @ clear frequency change bit + + @ store them plus current virtual stack ptr on stack + mov r10, sp + stmfd sp!, {r3 - r10} + + @ store physical address of stack pointer + mov r0, sp + bl sleep_phys_sp + ldr r1, =sleep_save_sp + str r0, [r1] + + @ clean data cache + bl xsc3_flush_kern_cache_all + + mov r0, #0x06 @ S2D3C4 mode + mcr p14, 0, r0, c7, c0, 0 @ enter sleep + +20: b 20b @ waiting for sleep + + .data + .align 5 +/* + * pxa3xx_cpu_resume + */ + +ENTRY(pxa3xx_cpu_resume) + + mov r0, #PSR_I_BIT | PSR_F_BIT | SVC_MODE @ set SVC, irqs off + msr cpsr_c, r0 + + ldr r0, sleep_save_sp @ stack phys addr + ldmfd r0, {r3 - r9, sp} @ CP regs + virt stack ptr + + mov r1, #0 + mcr p15, 0, r1, c7, c7, 0 @ invalidate I & D caches, BTB + mcr p15, 0, r1, c7, c10, 4 @ drain write (&fill) buffer + mcr p15, 0, r1, c7, c5, 4 @ flush prefetch buffer + mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs + + mcr p14, 0, r3, c6, c0, 0 @ clock configuration, turbo mode. + mcr p15, 0, r4, c15, c1, 0 @ CP access reg + mcr p15, 0, r5, c13, c0, 0 @ PID + mcr p15, 0, r6, c3, c0, 0 @ domain ID + mcr p15, 0, r7, c2, c0, 0 @ translation table base addr + mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg + + @ temporarily map resume_turn_on_mmu into the page table, + @ otherwise prefetch abort occurs after MMU is turned on + mov r1, r7 + bic r1, r1, #0x00ff + bic r1, r1, #0x3f00 + ldr r2, =0x542e + + adr r3, resume_turn_on_mmu + mov r3, r3, lsr #20 + orr r4, r2, r3, lsl #20 + ldr r5, [r1, r3, lsl #2] + str r4, [r1, r3, lsl #2] + + @ Mapping page table address in the page table + mov r6, r1, lsr #20 + orr r7, r2, r6, lsl #20 + ldr r8, [r1, r6, lsl #2] + str r7, [r1, r6, lsl #2] + + ldr r2, =pxa3xx_resume_after_mmu @ absolute virtual address + b resume_turn_on_mmu @ cache align execution + + .text +pxa3xx_resume_after_mmu: + /* restore the temporary mapping */ + str r5, [r1, r3, lsl #2] + str r8, [r1, r6, lsl #2] + b resume_after_mmu + +#endif /* CONFIG_PXA3xx */ + #ifdef CONFIG_PXA27x /* * pxa27x_cpu_suspend() diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c new file mode 100644 index 000000000000..ad346addc028 --- /dev/null +++ b/arch/arm/mach-pxa/smemc.c @@ -0,0 +1,88 @@ +/* + * Static Memory Controller + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/sysdev.h> + +#define SMEMC_PHYS_BASE (0x4A000000) +#define SMEMC_PHYS_SIZE (0x90) + +#define MSC0 (0x08) /* Static Memory Controller Register 0 */ +#define MSC1 (0x0C) /* Static Memory Controller Register 1 */ +#define SXCNFG (0x1C) /* Synchronous Static Memory Control Register */ +#define MEMCLKCFG (0x68) /* Clock Configuration */ +#define CSADRCFG0 (0x80) /* Address Configuration Register for CS0 */ +#define CSADRCFG1 (0x84) /* Address Configuration Register for CS1 */ +#define CSADRCFG2 (0x88) /* Address Configuration Register for CS2 */ +#define CSADRCFG3 (0x8C) /* Address Configuration Register for CS3 */ + +#ifdef CONFIG_PM +static void __iomem *smemc_mmio_base; + +static unsigned long msc[2]; +static unsigned long sxcnfg, memclkcfg; +static unsigned long csadrcfg[4]; + +static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state) +{ + msc[0] = __raw_readl(smemc_mmio_base + MSC0); + msc[1] = __raw_readl(smemc_mmio_base + MSC1); + sxcnfg = __raw_readl(smemc_mmio_base + SXCNFG); + memclkcfg = __raw_readl(smemc_mmio_base + MEMCLKCFG); + csadrcfg[0] = __raw_readl(smemc_mmio_base + CSADRCFG0); + csadrcfg[1] = __raw_readl(smemc_mmio_base + CSADRCFG1); + csadrcfg[2] = __raw_readl(smemc_mmio_base + CSADRCFG2); + csadrcfg[3] = __raw_readl(smemc_mmio_base + CSADRCFG3); + + return 0; +} + +static int pxa3xx_smemc_resume(struct sys_device *dev) +{ + __raw_writel(msc[0], smemc_mmio_base + MSC0); + __raw_writel(msc[1], smemc_mmio_base + MSC1); + __raw_writel(sxcnfg, smemc_mmio_base + SXCNFG); + __raw_writel(memclkcfg, smemc_mmio_base + MEMCLKCFG); + __raw_writel(csadrcfg[0], smemc_mmio_base + CSADRCFG0); + __raw_writel(csadrcfg[1], smemc_mmio_base + CSADRCFG1); + __raw_writel(csadrcfg[2], smemc_mmio_base + CSADRCFG2); + __raw_writel(csadrcfg[3], smemc_mmio_base + CSADRCFG3); + + return 0; +} + +static struct sysdev_class smemc_sysclass = { + .name = "smemc", + .suspend = pxa3xx_smemc_suspend, + .resume = pxa3xx_smemc_resume, +}; + +static struct sys_device smemc_sysdev = { + .id = 0, + .cls = &smemc_sysclass, +}; + +static int __init smemc_init(void) +{ + int ret = 0; + + if (cpu_is_pxa3xx()) { + smemc_mmio_base = ioremap(SMEMC_PHYS_BASE, SMEMC_PHYS_SIZE); + if (smemc_mmio_base == NULL) + return -ENODEV; + + ret = sysdev_class_register(&smemc_sysclass); + if (ret) + return ret; + + ret = sysdev_register(&smemc_sysdev); + } + + return ret; +} +subsys_initcall(smemc_init); +#endif diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 5078edeadf96..9e7773fca01c 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -36,6 +36,7 @@ #include <asm/mach/irq.h> #include <asm/arch/pxa-regs.h> +#include <asm/arch/pxa2xx-regs.h> #include <asm/arch/irda.h> #include <asm/arch/mmc.h> #include <asm/arch/ohci.h> diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index 1919756900f4..9b26fa5edad6 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -29,6 +29,7 @@ #include <asm/irq.h> #include <asm/system.h> #include <asm/arch/pxa-regs.h> +#include <asm/arch/pxa2xx-regs.h> #include <asm/arch/irda.h> #include <asm/arch/mmc.h> #include <asm/arch/udc.h> @@ -157,15 +158,10 @@ static void tosa_udc_command(int cmd) } } -static int tosa_udc_is_connected(void) -{ - return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0); -} - - static struct pxa2xx_udc_mach_info udc_info __initdata = { .udc_command = tosa_udc_command, - .udc_is_connected = tosa_udc_is_connected, + .gpio_vbus = TOSA_GPIO_USB_IN, + .gpio_vbus_inverted = 1, }; /* diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig index 35156ca39df7..39b3bb7f1020 100644 --- a/arch/arm/mach-realview/Kconfig +++ b/arch/arm/mach-realview/Kconfig @@ -7,24 +7,21 @@ config MACH_REALVIEW_EB help Include support for the ARM(R) RealView Emulation Baseboard platform. -config REALVIEW_MPCORE - bool "Support MPcore tile" +config REALVIEW_EB_ARM11MP + bool "Support ARM11MPCore tile" depends on MACH_REALVIEW_EB select CACHE_L2X0 help - Enable support for the MPCore tile on the Realview platform. - Since there are device address and interrupt differences, a - kernel built with this option enabled is not compatible with - other tiles. + Enable support for the ARM11MPCore tile on the Realview platform. -config REALVIEW_MPCORE_REVB - bool "Support MPcore RevB tile" - depends on REALVIEW_MPCORE +config REALVIEW_EB_ARM11MP_REVB + bool "Support ARM11MPCore RevB tile" + depends on REALVIEW_EB_ARM11MP default n help - Enable support for the MPCore RevB tile on the Realview platform. - Since there are device address differences, a + Enable support for the ARM11MPCore RevB tile on the Realview + platform. Since there are device address differences, a kernel built with this option enabled is not compatible with - other tiles. + other revisions of the ARM11MPCore tile. endmenu diff --git a/arch/arm/mach-realview/Makefile b/arch/arm/mach-realview/Makefile index 36e76ba937fc..ca1e390c3c28 100644 --- a/arch/arm/mach-realview/Makefile +++ b/arch/arm/mach-realview/Makefile @@ -4,6 +4,5 @@ obj-y := core.o clock.o obj-$(CONFIG_MACH_REALVIEW_EB) += realview_eb.o -obj-$(CONFIG_SMP) += platsmp.o headsmp.o +obj-$(CONFIG_SMP) += platsmp.o headsmp.o localtimer.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o -obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index 61d70218f1e8..98aefc9f4df3 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -25,6 +25,8 @@ #include <linux/interrupt.h> #include <linux/amba/bus.h> #include <linux/amba/clcd.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/system.h> #include <asm/hardware.h> @@ -37,7 +39,6 @@ #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/irq.h> -#include <asm/mach/time.h> #include <asm/mach/map.h> #include <asm/mach/mmc.h> @@ -48,6 +49,9 @@ #define REALVIEW_REFCOUNTER (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_24MHz_OFFSET) +/* used by entry-macro.S */ +void __iomem *gic_cpu_base_addr; + /* * This is the RealView sched_clock implementation. This has * a resolution of 41.7ns, and a maximum value of about 179s. @@ -121,26 +125,6 @@ struct platform_device realview_flash_device = { .resource = &realview_flash_resource, }; -static struct resource realview_smc91x_resources[] = { - [0] = { - .start = REALVIEW_ETH_BASE, - .end = REALVIEW_ETH_BASE + SZ_64K - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_ETH, - .end = IRQ_ETH, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device realview_smc91x_device = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(realview_smc91x_resources), - .resource = realview_smc91x_resources, -}; - static struct resource realview_i2c_resource = { .start = REALVIEW_I2C_BASE, .end = REALVIEW_I2C_BASE + SZ_4K - 1, @@ -484,45 +468,64 @@ void realview_leds_event(led_event_t ledevt) #define TICKS2USECS(x) ((x) / TICKS_PER_uSEC) #endif -/* - * Returns number of ms since last clock interrupt. Note that interrupts - * will have been disabled by do_gettimeoffset() - */ -static unsigned long realview_gettimeoffset(void) +static void timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) { - unsigned long ticks1, ticks2, status; + unsigned long ctrl; - /* - * Get the current number of ticks. Note that there is a race - * condition between us reading the timer and checking for - * an interrupt. We get around this by ensuring that the - * counter has not reloaded between our two reads. - */ - ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff; - do { - ticks1 = ticks2; - status = __raw_readl(__io_address(REALVIEW_GIC_DIST_BASE + GIC_DIST_PENDING_SET) - + ((IRQ_TIMERINT0_1 >> 5) << 2)); - ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff; - } while (ticks2 > ticks1); + switch(mode) { + case CLOCK_EVT_MODE_PERIODIC: + writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD); - /* - * Number of ticks since last interrupt. - */ - ticks1 = TIMER_RELOAD - ticks2; + ctrl = TIMER_CTRL_PERIODIC; + ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ENABLE; + break; + case CLOCK_EVT_MODE_ONESHOT: + /* period set, and timer enabled in 'next_event' hook */ + ctrl = TIMER_CTRL_ONESHOT; + ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE; + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + default: + ctrl = 0; + } - /* - * Interrupt pending? If so, we've reloaded once already. - * - * FIXME: Need to check this is effectively timer 0 that expires - */ - if (status & IRQMASK_TIMERINT0_1) - ticks1 += TIMER_RELOAD; + writel(ctrl, TIMER0_VA_BASE + TIMER_CTRL); +} - /* - * Convert the ticks to usecs - */ - return TICKS2USECS(ticks1); +static int timer_set_next_event(unsigned long evt, + struct clock_event_device *unused) +{ + unsigned long ctrl = readl(TIMER0_VA_BASE + TIMER_CTRL); + + writel(evt, TIMER0_VA_BASE + TIMER_LOAD); + writel(ctrl | TIMER_CTRL_ENABLE, TIMER0_VA_BASE + TIMER_CTRL); + + return 0; +} + +static struct clock_event_device timer0_clockevent = { + .name = "timer0", + .shift = 32, + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .set_mode = timer_set_mode, + .set_next_event = timer_set_next_event, + .rating = 300, + .cpumask = CPU_MASK_ALL, +}; + +static void __init realview_clockevents_init(unsigned int timer_irq) +{ + timer0_clockevent.irq = timer_irq; + timer0_clockevent.mult = + div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift); + timer0_clockevent.max_delta_ns = + clockevent_delta2ns(0xffffffff, &timer0_clockevent); + timer0_clockevent.min_delta_ns = + clockevent_delta2ns(0xf, &timer0_clockevent); + + clockevents_register_device(&timer0_clockevent); } /* @@ -530,15 +533,12 @@ static unsigned long realview_gettimeoffset(void) */ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id) { - // ...clear the interrupt + struct clock_event_device *evt = &timer0_clockevent; + + /* clear the interrupt */ writel(1, TIMER0_VA_BASE + TIMER_INTCLR); - timer_tick(); - -#if defined(CONFIG_SMP) && !defined(CONFIG_LOCAL_TIMERS) - smp_send_timer(); - update_process_times(user_mode(get_irq_regs())); -#endif + evt->event_handler(evt); return IRQ_HANDLED; } @@ -549,13 +549,49 @@ static struct irqaction realview_timer_irq = { .handler = realview_timer_interrupt, }; +static cycle_t realview_get_cycles(void) +{ + return ~readl(TIMER3_VA_BASE + TIMER_VALUE); +} + +static struct clocksource clocksource_realview = { + .name = "timer3", + .rating = 200, + .read = realview_get_cycles, + .mask = CLOCKSOURCE_MASK(32), + .shift = 20, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static void __init realview_clocksource_init(void) +{ + /* setup timer 0 as free-running clocksource */ + writel(0, TIMER3_VA_BASE + TIMER_CTRL); + writel(0xffffffff, TIMER3_VA_BASE + TIMER_LOAD); + writel(0xffffffff, TIMER3_VA_BASE + TIMER_VALUE); + writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC, + TIMER3_VA_BASE + TIMER_CTRL); + + clocksource_realview.mult = + clocksource_khz2mult(1000, clocksource_realview.shift); + clocksource_register(&clocksource_realview); +} + /* - * Set up timer interrupt, and return the current time in seconds. + * Set up the clock source and clock events devices */ -static void __init realview_timer_init(void) +void __init realview_timer_init(unsigned int timer_irq) { u32 val; +#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST + /* + * The dummy clock device has to be registered before the main device + * so that the latter will broadcast the clock events + */ + local_timer_setup(smp_processor_id()); +#endif + /* * set clock frequency: * REALVIEW_REFCLK is 32KHz @@ -576,18 +612,11 @@ static void __init realview_timer_init(void) writel(0, TIMER2_VA_BASE + TIMER_CTRL); writel(0, TIMER3_VA_BASE + TIMER_CTRL); - writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD); - writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_VALUE); - writel(TIMER_DIVISOR | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC | - TIMER_CTRL_IE, TIMER0_VA_BASE + TIMER_CTRL); - /* * Make irqs happen for the system timer */ - setup_irq(IRQ_TIMERINT0_1, &realview_timer_irq); -} + setup_irq(timer_irq, &realview_timer_irq); -struct sys_timer realview_timer = { - .init = realview_timer_init, - .offset = realview_gettimeoffset, -}; + realview_clocksource_init(); + realview_clockevents_init(timer_irq); +} diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h index 2b53420f9c1b..492a14c0d604 100644 --- a/arch/arm/mach-realview/core.h +++ b/arch/arm/mach-realview/core.h @@ -27,8 +27,6 @@ #include <asm/leds.h> #include <asm/io.h> -extern struct sys_timer realview_timer; - #define AMBA_DEVICE(name,busid,base,plat) \ static struct amba_device name##_device = { \ .dev = { \ @@ -38,7 +36,7 @@ static struct amba_device name##_device = { \ }, \ .res = { \ .start = REALVIEW_##base##_BASE, \ - .end = (REALVIEW_##base##_BASE) + SZ_4K - 1,\ + .end = (REALVIEW_##base##_BASE) + SZ_4K - 1, \ .flags = IORESOURCE_MEM, \ }, \ .dma_mask = ~0, \ @@ -46,74 +44,19 @@ static struct amba_device name##_device = { \ /* .dma = base##_DMA,*/ \ } -/* - * These devices are connected via the core APB bridge - */ -#define GPIO2_IRQ { IRQ_GPIOINT2, NO_IRQ } -#define GPIO2_DMA { 0, 0 } -#define GPIO3_IRQ { IRQ_GPIOINT3, NO_IRQ } -#define GPIO3_DMA { 0, 0 } - -#define AACI_IRQ { IRQ_AACI, NO_IRQ } -#define AACI_DMA { 0x80, 0x81 } -#define MMCI0_IRQ { IRQ_MMCI0A,IRQ_MMCI0B } -#define MMCI0_DMA { 0x84, 0 } -#define KMI0_IRQ { IRQ_KMI0, NO_IRQ } -#define KMI0_DMA { 0, 0 } -#define KMI1_IRQ { IRQ_KMI1, NO_IRQ } -#define KMI1_DMA { 0, 0 } - -/* - * These devices are connected directly to the multi-layer AHB switch - */ -#define SMC_IRQ { NO_IRQ, NO_IRQ } -#define SMC_DMA { 0, 0 } -#define MPMC_IRQ { NO_IRQ, NO_IRQ } -#define MPMC_DMA { 0, 0 } -#define CLCD_IRQ { IRQ_CLCDINT, NO_IRQ } -#define CLCD_DMA { 0, 0 } -#define DMAC_IRQ { IRQ_DMAINT, NO_IRQ } -#define DMAC_DMA { 0, 0 } - -/* - * These devices are connected via the core APB bridge - */ -#define SCTL_IRQ { NO_IRQ, NO_IRQ } -#define SCTL_DMA { 0, 0 } -#define WATCHDOG_IRQ { IRQ_WDOGINT, NO_IRQ } -#define WATCHDOG_DMA { 0, 0 } -#define GPIO0_IRQ { IRQ_GPIOINT0, NO_IRQ } -#define GPIO0_DMA { 0, 0 } -#define GPIO1_IRQ { IRQ_GPIOINT1, NO_IRQ } -#define GPIO1_DMA { 0, 0 } -#define RTC_IRQ { IRQ_RTCINT, NO_IRQ } -#define RTC_DMA { 0, 0 } - -/* - * These devices are connected via the DMA APB bridge - */ -#define SCI_IRQ { IRQ_SCIINT, NO_IRQ } -#define SCI_DMA { 7, 6 } -#define UART0_IRQ { IRQ_UARTINT0, NO_IRQ } -#define UART0_DMA { 15, 14 } -#define UART1_IRQ { IRQ_UARTINT1, NO_IRQ } -#define UART1_DMA { 13, 12 } -#define UART2_IRQ { IRQ_UARTINT2, NO_IRQ } -#define UART2_DMA { 11, 10 } -#define UART3_IRQ { IRQ_UART3, NO_IRQ } -#define UART3_DMA { 0x86, 0x87 } -#define SSP_IRQ { IRQ_SSPINT, NO_IRQ } -#define SSP_DMA { 9, 8 } - - extern struct platform_device realview_flash_device; -extern struct platform_device realview_smc91x_device; extern struct platform_device realview_i2c_device; extern struct mmc_platform_data realview_mmc0_plat_data; extern struct mmc_platform_data realview_mmc1_plat_data; extern struct clk realview_clcd_clk; extern struct clcd_board clcd_plat_data; +extern void __iomem *gic_cpu_base_addr; +#ifdef CONFIG_LOCAL_TIMERS +extern void __iomem *twd_base_addr; +extern unsigned int twd_size; +#endif extern void realview_leds_event(led_event_t ledevt); +extern void realview_timer_init(unsigned int timer_irq); #endif diff --git a/arch/arm/mach-realview/localtimer.c b/arch/arm/mach-realview/localtimer.c index c7bdf04ab094..50604360479f 100644 --- a/arch/arm/mach-realview/localtimer.c +++ b/arch/arm/mach-realview/localtimer.c @@ -14,19 +14,75 @@ #include <linux/device.h> #include <linux/smp.h> #include <linux/jiffies.h> +#include <linux/percpu.h> +#include <linux/clockchips.h> +#include <linux/irq.h> -#include <asm/mach/time.h> #include <asm/hardware/arm_twd.h> #include <asm/hardware/gic.h> #include <asm/hardware.h> #include <asm/io.h> #include <asm/irq.h> -#define TWD_BASE(cpu) (__io_address(REALVIEW_TWD_BASE) + \ - ((cpu) * REALVIEW_TWD_SIZE)) +static DEFINE_PER_CPU(struct clock_event_device, local_clockevent); + +/* + * Used on SMP for either the local timer or IPI_TIMER + */ +void local_timer_interrupt(void) +{ + struct clock_event_device *clk = &__get_cpu_var(local_clockevent); + + clk->event_handler(clk); +} + +#ifdef CONFIG_LOCAL_TIMERS + +#define TWD_BASE(cpu) (twd_base_addr + (cpu) * twd_size) + +/* set up by the platform code */ +void __iomem *twd_base_addr; +unsigned int twd_size; static unsigned long mpcore_timer_rate; +static void local_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) +{ + void __iomem *base = TWD_BASE(smp_processor_id()); + unsigned long ctrl; + + switch(mode) { + case CLOCK_EVT_MODE_PERIODIC: + /* timer load already set up */ + ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE + | TWD_TIMER_CONTROL_PERIODIC; + break; + case CLOCK_EVT_MODE_ONESHOT: + /* period set, and timer enabled in 'next_event' hook */ + ctrl = TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_ONESHOT; + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + default: + ctrl = 0; + } + + __raw_writel(ctrl, base + TWD_TIMER_CONTROL); +} + +static int local_timer_set_next_event(unsigned long evt, + struct clock_event_device *unused) +{ + void __iomem *base = TWD_BASE(smp_processor_id()); + unsigned long ctrl = __raw_readl(base + TWD_TIMER_CONTROL); + + __raw_writel(evt, base + TWD_TIMER_COUNTER); + __raw_writel(ctrl | TWD_TIMER_CONTROL_ENABLE, base + TWD_TIMER_CONTROL); + + return 0; +} + /* * local_timer_ack: checks for a local timer interrupt. * @@ -45,12 +101,11 @@ int local_timer_ack(void) return 0; } -void __cpuinit local_timer_setup(unsigned int cpu) +static void __cpuinit twd_calibrate_rate(unsigned int cpu) { void __iomem *base = TWD_BASE(cpu); - unsigned int load, offset; + unsigned long load, count; u64 waitjiffies; - unsigned int count; /* * If this is the first time round, we need to work out how fast @@ -88,36 +143,36 @@ void __cpuinit local_timer_setup(unsigned int cpu) load = mpcore_timer_rate / HZ; __raw_writel(load, base + TWD_TIMER_LOAD); - __raw_writel(0x7, base + TWD_TIMER_CONTROL); - - /* - * Now maneuver our local tick into the right part of the jiffy. - * Start by working out where within the tick our local timer - * interrupt should go. - */ - offset = ((mpcore_timer_rate / HZ) / (NR_CPUS + 1)) * (cpu + 1); - - /* - * gettimeoffset() will return a number of us since the last tick. - * Convert this number of us to a local timer tick count. - * Be careful of integer overflow whilst keeping maximum precision. - * - * with HZ=100 and 1MHz (fpga) ~ 1GHz processor: - * load = 1 ~ 10,000 - * mpcore_timer_rate/10000 = 100 ~ 100,000 - * - * so the multiply value will be less than 10^9 always. - */ - load = (system_timer->offset() * (mpcore_timer_rate / 10000)) / 100; - - /* Add on our offset to get the load value */ - load = (load + offset) % (mpcore_timer_rate / HZ); +} - __raw_writel(load, base + TWD_TIMER_COUNTER); +/* + * Setup the local clock events for a CPU. + */ +void __cpuinit local_timer_setup(unsigned int cpu) +{ + struct clock_event_device *clk = &per_cpu(local_clockevent, cpu); + unsigned long flags; + + twd_calibrate_rate(cpu); + + clk->name = "local_timer"; + clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; + clk->rating = 350; + clk->set_mode = local_timer_set_mode; + clk->set_next_event = local_timer_set_next_event; + clk->irq = IRQ_LOCALTIMER; + clk->cpumask = cpumask_of_cpu(cpu); + clk->shift = 20; + clk->mult = div_sc(mpcore_timer_rate, NSEC_PER_SEC, clk->shift); + clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk); + clk->min_delta_ns = clockevent_delta2ns(0xf, clk); /* Make sure our local interrupt controller has this enabled */ - __raw_writel(1 << IRQ_LOCALTIMER, - __io_address(REALVIEW_GIC_DIST_BASE) + GIC_DIST_ENABLE_SET); + local_irq_save(flags); + get_irq_chip(IRQ_LOCALTIMER)->unmask(IRQ_LOCALTIMER); + local_irq_restore(flags); + + clockevents_register_device(clk); } /* @@ -127,3 +182,26 @@ void __cpuexit local_timer_stop(unsigned int cpu) { __raw_writel(0, TWD_BASE(cpu) + TWD_TIMER_CONTROL); } + +#else /* CONFIG_LOCAL_TIMERS */ + +static void dummy_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) +{ +} + +void __cpuinit local_timer_setup(unsigned int cpu) +{ + struct clock_event_device *clk = &per_cpu(local_clockevent, cpu); + + clk->name = "dummy_timer"; + clk->features = CLOCK_EVT_FEAT_DUMMY; + clk->rating = 200; + clk->set_mode = dummy_timer_set_mode; + clk->broadcast = smp_timer_broadcast; + clk->cpumask = cpumask_of_cpu(cpu); + + clockevents_register_device(clk); +} + +#endif /* !CONFIG_LOCAL_TIMERS */ diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index fce3596f9950..de2b7159557d 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -18,6 +18,7 @@ #include <asm/hardware/arm_scu.h> #include <asm/hardware.h> #include <asm/io.h> +#include <asm/mach-types.h> extern void realview_secondary_startup(void); @@ -31,9 +32,13 @@ static unsigned int __init get_core_count(void) { unsigned int ncores; - ncores = __raw_readl(__io_address(REALVIEW_MPCORE_SCU_BASE) + SCU_CONFIG); + if (machine_is_realview_eb() && core_tile_eb11mp()) { + ncores = __raw_readl(__io_address(REALVIEW_EB11MP_SCU_BASE) + SCU_CONFIG); + ncores = (ncores & 0x03) + 1; + } else + ncores = 1; - return (ncores & 0x03) + 1; + return ncores; } static DEFINE_SPINLOCK(boot_lock); @@ -52,7 +57,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu) * core (e.g. timer irq), then they will not have been enabled * for us: do so */ - gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE)); + gic_cpu_init(0, __io_address(REALVIEW_EB11MP_GIC_CPU_BASE)); /* * let the primary processor know we're out of the @@ -187,10 +192,15 @@ void __init smp_prepare_cpus(unsigned int max_cpus) if (max_cpus > ncores) max_cpus = ncores; +#ifdef CONFIG_LOCAL_TIMERS /* - * Enable the local timer for primary CPU + * Enable the local timer for primary CPU. If the device is + * dummy (!CONFIG_LOCAL_TIMERS), it was already registers in + * realview_timer_init */ - local_timer_setup(cpu); + if (machine_is_realview_eb() && core_tile_eb11mp()) + local_timer_setup(cpu); +#endif /* * Initialise the present map, which describes the set of CPUs diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index ecec2f85c4cd..60d9eb810246 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -36,7 +36,9 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/mmc.h> +#include <asm/mach/time.h> +#include <asm/arch/board-eb.h> #include <asm/arch/irqs.h> #include "core.h" @@ -58,26 +60,7 @@ static struct map_desc realview_eb_io_desc[] __initdata = { .pfn = __phys_to_pfn(REALVIEW_GIC_DIST_BASE), .length = SZ_4K, .type = MT_DEVICE, - }, -#ifdef CONFIG_REALVIEW_MPCORE - { - .virtual = IO_ADDRESS(REALVIEW_GIC1_CPU_BASE), - .pfn = __phys_to_pfn(REALVIEW_GIC1_CPU_BASE), - .length = SZ_4K, - .type = MT_DEVICE, }, { - .virtual = IO_ADDRESS(REALVIEW_GIC1_DIST_BASE), - .pfn = __phys_to_pfn(REALVIEW_GIC1_DIST_BASE), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = IO_ADDRESS(REALVIEW_MPCORE_L220_BASE), - .pfn = __phys_to_pfn(REALVIEW_MPCORE_L220_BASE), - .length = SZ_8K, - .type = MT_DEVICE, - }, -#endif - { .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), .length = SZ_4K, @@ -103,11 +86,95 @@ static struct map_desc realview_eb_io_desc[] __initdata = { #endif }; +static struct map_desc realview_eb11mp_io_desc[] __initdata = { + { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + } +}; + static void __init realview_eb_map_io(void) { iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc)); + if (core_tile_eb11mp()) + iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc)); } +/* + * RealView EB AMBA devices + */ + +/* + * These devices are connected via the core APB bridge + */ +#define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ } +#define GPIO2_DMA { 0, 0 } +#define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ } +#define GPIO3_DMA { 0, 0 } + +#define AACI_IRQ { IRQ_EB_AACI, NO_IRQ } +#define AACI_DMA { 0x80, 0x81 } +#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B } +#define MMCI0_DMA { 0x84, 0 } +#define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ } +#define KMI0_DMA { 0, 0 } +#define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ } +#define KMI1_DMA { 0, 0 } + +/* + * These devices are connected directly to the multi-layer AHB switch + */ +#define SMC_IRQ { NO_IRQ, NO_IRQ } +#define SMC_DMA { 0, 0 } +#define MPMC_IRQ { NO_IRQ, NO_IRQ } +#define MPMC_DMA { 0, 0 } +#define CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ } +#define CLCD_DMA { 0, 0 } +#define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ } +#define DMAC_DMA { 0, 0 } + +/* + * These devices are connected via the core APB bridge + */ +#define SCTL_IRQ { NO_IRQ, NO_IRQ } +#define SCTL_DMA { 0, 0 } +#define WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ } +#define WATCHDOG_DMA { 0, 0 } +#define GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ } +#define GPIO0_DMA { 0, 0 } +#define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ } +#define GPIO1_DMA { 0, 0 } +#define RTC_IRQ { IRQ_EB_RTC, NO_IRQ } +#define RTC_DMA { 0, 0 } + +/* + * These devices are connected via the DMA APB bridge + */ +#define SCI_IRQ { IRQ_EB_SCI, NO_IRQ } +#define SCI_DMA { 7, 6 } +#define UART0_IRQ { IRQ_EB_UART0, NO_IRQ } +#define UART0_DMA { 15, 14 } +#define UART1_IRQ { IRQ_EB_UART1, NO_IRQ } +#define UART1_DMA { 13, 12 } +#define UART2_IRQ { IRQ_EB_UART2, NO_IRQ } +#define UART2_DMA { 11, 10 } +#define UART3_IRQ { IRQ_EB_UART3, NO_IRQ } +#define UART3_DMA { 0x86, 0x87 } +#define SSP_IRQ { IRQ_EB_SSP, NO_IRQ } +#define SSP_DMA { 9, 8 } + /* FPGA Primecells */ AMBA_DEVICE(aaci, "fpga:04", AACI, NULL); AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data); @@ -153,38 +220,127 @@ static struct amba_device *amba_devs[] __initdata = { &kmi1_device, }; +/* + * RealView EB platform devices + */ + +static struct resource realview_eb_smc91x_resources[] = { + [0] = { + .start = REALVIEW_ETH_BASE, + .end = REALVIEW_ETH_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_EB_ETH, + .end = IRQ_EB_ETH, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device realview_eb_smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(realview_eb_smc91x_resources), + .resource = realview_eb_smc91x_resources, +}; + static void __init gic_init_irq(void) { -#ifdef CONFIG_REALVIEW_MPCORE - unsigned int pldctrl; - writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); - pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1); - pldctrl |= 0x00800000; /* New irq mode */ - writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1); - writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); + if (core_tile_eb11mp()) { + unsigned int pldctrl; + + /* new irq mode */ + writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); + pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); + pldctrl |= 0x00800000; + writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); + writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); + + /* core tile GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29); + gic_cpu_init(0, gic_cpu_base_addr); + +#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB + /* board GIC, secondary */ + gic_dist_init(1, __io_address(REALVIEW_GIC_DIST_BASE), 64); + gic_cpu_init(1, __io_address(REALVIEW_GIC_CPU_BASE)); + gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1); #endif - gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29); - gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE)); -#if defined(CONFIG_REALVIEW_MPCORE) && !defined(CONFIG_REALVIEW_MPCORE_REVB) - gic_dist_init(1, __io_address(REALVIEW_GIC1_DIST_BASE), 64); - gic_cpu_init(1, __io_address(REALVIEW_GIC1_CPU_BASE)); - gic_cascade_irq(1, IRQ_EB_IRQ1); + } else { + /* board GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29); + gic_cpu_init(0, gic_cpu_base_addr); + } +} + +/* + * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile + */ +static void realview_eb11mp_fixup(void) +{ + /* AMBA devices */ + dmac_device.irq[0] = IRQ_EB11MP_DMA; + uart0_device.irq[0] = IRQ_EB11MP_UART0; + uart1_device.irq[0] = IRQ_EB11MP_UART1; + uart2_device.irq[0] = IRQ_EB11MP_UART2; + uart3_device.irq[0] = IRQ_EB11MP_UART3; + clcd_device.irq[0] = IRQ_EB11MP_CLCD; + wdog_device.irq[0] = IRQ_EB11MP_WDOG; + gpio0_device.irq[0] = IRQ_EB11MP_GPIO0; + gpio1_device.irq[0] = IRQ_EB11MP_GPIO1; + gpio2_device.irq[0] = IRQ_EB11MP_GPIO2; + rtc_device.irq[0] = IRQ_EB11MP_RTC; + sci0_device.irq[0] = IRQ_EB11MP_SCI; + ssp0_device.irq[0] = IRQ_EB11MP_SSP; + aaci_device.irq[0] = IRQ_EB11MP_AACI; + mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A; + mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B; + kmi0_device.irq[0] = IRQ_EB11MP_KMI0; + kmi1_device.irq[0] = IRQ_EB11MP_KMI1; + + /* platform devices */ + realview_eb_smc91x_resources[1].start = IRQ_EB11MP_ETH; + realview_eb_smc91x_resources[1].end = IRQ_EB11MP_ETH; +} + +static void __init realview_eb_timer_init(void) +{ + unsigned int timer_irq; + + if (core_tile_eb11mp()) { +#ifdef CONFIG_LOCAL_TIMERS + twd_base_addr = __io_address(REALVIEW_EB11MP_TWD_BASE); + twd_size = REALVIEW_EB11MP_TWD_SIZE; #endif + timer_irq = IRQ_EB11MP_TIMER0_1; + } else + timer_irq = IRQ_EB_TIMER0_1; + + realview_timer_init(timer_irq); } +static struct sys_timer realview_eb_timer = { + .init = realview_eb_timer_init, +}; + static void __init realview_eb_init(void) { int i; -#ifdef CONFIG_REALVIEW_MPCORE - /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled - * Bits: .... ...0 0111 1001 0000 .... .... .... */ - l2x0_init(__io_address(REALVIEW_MPCORE_L220_BASE), 0x00790000, 0xfe000fff); -#endif + if (core_tile_eb11mp()) { + realview_eb11mp_fixup(); + + /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled + * Bits: .... ...0 0111 1001 0000 .... .... .... */ + l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff); + } + clk_register(&realview_clcd_clk); platform_device_register(&realview_flash_device); - platform_device_register(&realview_smc91x_device); + platform_device_register(&realview_eb_smc91x_device); platform_device_register(&realview_i2c_device); for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { @@ -204,6 +360,6 @@ MACHINE_START(REALVIEW_EB, "ARM-RealView EB") .boot_params = 0x00000100, .map_io = realview_eb_map_io, .init_irq = gic_init_irq, - .timer = &realview_timer, + .timer = &realview_eb_timer, .init_machine = realview_eb_init, MACHINE_END diff --git a/arch/arm/mach-sa1100/collie_pm.c b/arch/arm/mach-sa1100/collie_pm.c index 1e25b1d19fce..94620be7bfac 100644 --- a/arch/arm/mach-sa1100/collie_pm.c +++ b/arch/arm/mach-sa1100/collie_pm.c @@ -165,7 +165,7 @@ int collie_read_temp(void) ucb1x00_adc_enable(ucb); ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0); - /* >1010 = battery removed, 460 = 22C ?, higer = lower temp ? */ + /* >1010 = battery removed, 460 = 22C ?, higher = lower temp ? */ voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD0, UCB_SYNC); ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON); ucb1x00_adc_disable(ucb); diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 9e13c8358ea7..5c84c604ed86 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -470,7 +470,7 @@ void __init sa1110_mb_disable(void) * If the system is going to use the SA-1111 DMA engines, set up * the memory bus request/grant pins. */ -void __init sa1110_mb_enable(void) +void __devinit sa1110_mb_enable(void) { unsigned long flags; diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 75952779ce19..303a7ff6bfd2 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -162,7 +162,7 @@ static void unmap_area_sections(unsigned long virt, unsigned long size) * Free the page table, if there was one. */ if ((pmd_val(pmd) & PMD_TYPE_MASK) == PMD_TYPE_TABLE) - pte_free_kernel(pmd_page_vaddr(pmd)); + pte_free_kernel(&init_mm, pmd_page_vaddr(pmd)); } addr += PGDIR_SIZE; diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c index 50b9aed6000d..500c9610ab30 100644 --- a/arch/arm/mm/pgd.c +++ b/arch/arm/mm/pgd.c @@ -65,14 +65,14 @@ pgd_t *get_pgd_slow(struct mm_struct *mm) return new_pgd; no_pte: - pmd_free(new_pmd); + pmd_free(mm, new_pmd); no_pmd: free_pages((unsigned long)new_pgd, 2); no_pgd: return NULL; } -void free_pgd_slow(pgd_t *pgd) +void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd) { pmd_t *pmd; struct page *pte; @@ -94,8 +94,8 @@ void free_pgd_slow(pgd_t *pgd) pmd_clear(pmd); dec_zone_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE); pte_lock_deinit(pte); - pte_free(pte); - pmd_free(pmd); + pte_free(mm, pte); + pmd_free(mm, pmd); free: free_pages((unsigned long) pgd, 2); } diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c index ba3d21d8fba3..6fe481ff4fdf 100644 --- a/arch/arm/plat-iop/time.c +++ b/arch/arm/plat-iop/time.c @@ -57,8 +57,6 @@ unsigned long iop_gettimeoffset(void) static irqreturn_t iop_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - write_tisr(1); while ((signed long)(next_jiffy_time - read_tcr1()) @@ -67,8 +65,6 @@ iop_timer_interrupt(int irq, void *dev_id) next_jiffy_time -= ticks_per_jiffy; } - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c index d486f5112569..ae2c5d7efc9d 100644 --- a/arch/arm/plat-s3c24xx/irq.c +++ b/arch/arm/plat-s3c24xx/irq.c @@ -47,7 +47,7 @@ * Mark IRQ_LCD valid * * 25-Jul-2005 Ben Dooks - * Split the S3C2440 IRQ code to seperate file + * Split the S3C2440 IRQ code to separate file */ #include <linux/init.h> diff --git a/arch/arm/plat-s3c24xx/time.c b/arch/arm/plat-s3c24xx/time.c index 2ec1daaa0e53..766473b3f98b 100644 --- a/arch/arm/plat-s3c24xx/time.c +++ b/arch/arm/plat-s3c24xx/time.c @@ -130,9 +130,7 @@ static unsigned long s3c2410_gettimeoffset (void) static irqreturn_t s3c2410_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index e34e2c9c94cb..28e0caf4156c 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -10,6 +10,8 @@ config AVR32 # With EMBEDDED=n, we get lots of stuff automatically selected # that we usually don't need on AVR32. select EMBEDDED + select HAVE_OPROFILE + select HAVE_KPROBES help AVR32 is a high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular @@ -54,9 +56,6 @@ config ARCH_HAS_ILOG2_U32 config ARCH_HAS_ILOG2_U64 def_bool n -config ARCH_SUPPORTS_OPROFILE - def_bool y - config GENERIC_HWEIGHT def_bool y @@ -83,6 +82,7 @@ config PLATFORM_AT32AP select SUBARCH_AVR32B select MMU select PERFORMANCE_COUNTERS + select HAVE_GPIO_LIB # # CPU types @@ -236,8 +236,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/avr32/Kconfig.debug" source "security/Kconfig" diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S index 75c81f2dd0b3..478bda4c4a09 100644 --- a/arch/avr32/kernel/syscall_table.S +++ b/arch/avr32/kernel/syscall_table.S @@ -293,6 +293,6 @@ sys_call_table: .long sys_shmctl .long sys_utimensat .long sys_signalfd - .long sys_timerfd /* 280 */ + .long sys_ni_syscall /* 280, was sys_timerfd */ .long sys_eventfd .long sys_ni_syscall /* r8 is saturated at nr_syscalls */ diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index d61a02da898c..38a8fa31c0b5 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -24,11 +24,11 @@ #define MAX_NR_PIO_DEVICES 8 struct pio_device { + struct gpio_chip chip; void __iomem *regs; const struct platform_device *pdev; struct clk *clk; u32 pinmux_mask; - u32 gpio_mask; char name[8]; }; @@ -64,7 +64,8 @@ void __init at32_select_periph(unsigned int pin, unsigned int periph, goto fail; } - if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { + if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask) + || gpiochip_is_requested(&pio->chip, pin_index))) { printk("%s: pin %u is busy\n", pio->name, pin_index); goto fail; } @@ -79,9 +80,6 @@ void __init at32_select_periph(unsigned int pin, unsigned int periph, if (!(flags & AT32_GPIOF_PULLUP)) pio_writel(pio, PUDR, mask); - /* gpio_request NOT allowed */ - set_bit(pin_index, &pio->gpio_mask); - return; fail: @@ -130,9 +128,6 @@ void __init at32_select_gpio(unsigned int pin, unsigned long flags) pio_writel(pio, PER, mask); - /* gpio_request now allowed */ - clear_bit(pin_index, &pio->gpio_mask); - return; fail: @@ -166,96 +161,50 @@ fail: /* GPIO API */ -int gpio_request(unsigned int gpio, const char *label) +static int direction_input(struct gpio_chip *chip, unsigned offset) { - struct pio_device *pio; - unsigned int pin; - - pio = gpio_to_pio(gpio); - if (!pio) - return -ENODEV; + struct pio_device *pio = container_of(chip, struct pio_device, chip); + u32 mask = 1 << offset; - pin = gpio & 0x1f; - if (test_and_set_bit(pin, &pio->gpio_mask)) - return -EBUSY; + if (!(pio_readl(pio, PSR) & mask)) + return -EINVAL; + pio_writel(pio, ODR, mask); return 0; } -EXPORT_SYMBOL(gpio_request); -void gpio_free(unsigned int gpio) +static int gpio_get(struct gpio_chip *chip, unsigned offset) { - struct pio_device *pio; - unsigned int pin; + struct pio_device *pio = container_of(chip, struct pio_device, chip); - pio = gpio_to_pio(gpio); - if (!pio) { - printk(KERN_ERR - "gpio: attempted to free invalid pin %u\n", gpio); - return; - } - - pin = gpio & 0x1f; - if (!test_and_clear_bit(pin, &pio->gpio_mask)) - printk(KERN_ERR "gpio: freeing free or non-gpio pin %s-%u\n", - pio->name, pin); + return (pio_readl(pio, PDSR) >> offset) & 1; } -EXPORT_SYMBOL(gpio_free); -int gpio_direction_input(unsigned int gpio) -{ - struct pio_device *pio; - unsigned int pin; - - pio = gpio_to_pio(gpio); - if (!pio) - return -ENODEV; - - pin = gpio & 0x1f; - pio_writel(pio, ODR, 1 << pin); - - return 0; -} -EXPORT_SYMBOL(gpio_direction_input); +static void gpio_set(struct gpio_chip *chip, unsigned offset, int value); -int gpio_direction_output(unsigned int gpio, int value) +static int direction_output(struct gpio_chip *chip, unsigned offset, int value) { - struct pio_device *pio; - unsigned int pin; - - pio = gpio_to_pio(gpio); - if (!pio) - return -ENODEV; + struct pio_device *pio = container_of(chip, struct pio_device, chip); + u32 mask = 1 << offset; - gpio_set_value(gpio, value); - - pin = gpio & 0x1f; - pio_writel(pio, OER, 1 << pin); + if (!(pio_readl(pio, PSR) & mask)) + return -EINVAL; + gpio_set(chip, offset, value); + pio_writel(pio, OER, mask); return 0; } -EXPORT_SYMBOL(gpio_direction_output); -int gpio_get_value(unsigned int gpio) +static void gpio_set(struct gpio_chip *chip, unsigned offset, int value) { - struct pio_device *pio = &pio_dev[gpio >> 5]; + struct pio_device *pio = container_of(chip, struct pio_device, chip); + u32 mask = 1 << offset; - return (pio_readl(pio, PDSR) >> (gpio & 0x1f)) & 1; -} -EXPORT_SYMBOL(gpio_get_value); - -void gpio_set_value(unsigned int gpio, int value) -{ - struct pio_device *pio = &pio_dev[gpio >> 5]; - u32 mask; - - mask = 1 << (gpio & 0x1f); if (value) pio_writel(pio, SODR, mask); else pio_writel(pio, CODR, mask); } -EXPORT_SYMBOL(gpio_set_value); /*--------------------------------------------------------------------------*/ @@ -339,6 +288,63 @@ gpio_irq_setup(struct pio_device *pio, int irq, int gpio_irq) /*--------------------------------------------------------------------------*/ +#ifdef CONFIG_DEBUG_FS + +#include <linux/seq_file.h> + +/* + * This shows more info than the generic gpio dump code: + * pullups, deglitching, open drain drive. + */ +static void pio_bank_show(struct seq_file *s, struct gpio_chip *chip) +{ + struct pio_device *pio = container_of(chip, struct pio_device, chip); + u32 psr, osr, imr, pdsr, pusr, ifsr, mdsr; + unsigned i; + u32 mask; + char bank; + + psr = pio_readl(pio, PSR); + osr = pio_readl(pio, OSR); + imr = pio_readl(pio, IMR); + pdsr = pio_readl(pio, PDSR); + pusr = pio_readl(pio, PUSR); + ifsr = pio_readl(pio, IFSR); + mdsr = pio_readl(pio, MDSR); + + bank = 'A' + pio->pdev->id; + + for (i = 0, mask = 1; i < 32; i++, mask <<= 1) { + const char *label; + + label = gpiochip_is_requested(chip, i); + if (!label) + continue; + + seq_printf(s, " gpio-%-3d P%c%-2d (%-12s) %s %s %s", + chip->base + i, bank, i, + label, + (osr & mask) ? "out" : "in ", + (mask & pdsr) ? "hi" : "lo", + (mask & pusr) ? " " : "up"); + if (ifsr & mask) + seq_printf(s, " deglitch"); + if ((osr & mdsr) & mask) + seq_printf(s, " open-drain"); + if (imr & mask) + seq_printf(s, " irq-%d edge-both", + gpio_to_irq(chip->base + i)); + seq_printf(s, "\n"); + } +} + +#else +#define pio_bank_show NULL +#endif + + +/*--------------------------------------------------------------------------*/ + static int __init pio_probe(struct platform_device *pdev) { struct pio_device *pio = NULL; @@ -349,6 +355,18 @@ static int __init pio_probe(struct platform_device *pdev) pio = &pio_dev[pdev->id]; BUG_ON(!pio->regs); + pio->chip.label = pio->name; + pio->chip.base = pdev->id * 32; + pio->chip.ngpio = 32; + + pio->chip.direction_input = direction_input; + pio->chip.get = gpio_get; + pio->chip.direction_output = direction_output; + pio->chip.set = gpio_set; + pio->chip.dbg_show = pio_bank_show; + + gpiochip_add(&pio->chip); + gpio_irq_setup(pio, irq, gpio_irq_base); platform_set_drvdata(pdev, pio); @@ -406,12 +424,6 @@ void __init at32_init_pio(struct platform_device *pdev) pio->pdev = pdev; pio->regs = ioremap(regs->start, regs->end - regs->start + 1); - /* - * request_gpio() is only valid for pins that have been - * explicitly configured as GPIO and not previously requested - */ - pio->gpio_mask = ~0UL; - /* start with irqs disabled and acked */ pio_writel(pio, IDR, ~0UL); (void) pio_readl(pio, ISR); diff --git a/arch/avr32/mach-at32ap/pio.h b/arch/avr32/mach-at32ap/pio.h index 50fa3aca32c5..7795116a483a 100644 --- a/arch/avr32/mach-at32ap/pio.h +++ b/arch/avr32/mach-at32ap/pio.h @@ -19,7 +19,7 @@ #define PIO_OSR 0x0018 #define PIO_IFER 0x0020 #define PIO_IFDR 0x0024 -#define PIO_ISFR 0x0028 +#define PIO_IFSR 0x0028 #define PIO_SODR 0x0030 #define PIO_CODR 0x0034 #define PIO_ODSR 0x0038 diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index fc7ca86ac8bf..ba21e33b8b1f 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -24,6 +24,7 @@ config RWSEM_XCHGADD_ALGORITHM config BLACKFIN bool default y + select HAVE_OPROFILE config ZONE_DMA bool @@ -898,6 +899,10 @@ endmenu menu "Power management options" source "kernel/power/Kconfig" +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !SMP + choice prompt "Select PM Wakeup Event Source" default PM_WAKEUP_GPIO_BY_SIC_IWR @@ -969,8 +974,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/blackfin/Kconfig.debug" source "security/Kconfig" diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 56ff51bc8c21..fdd9bf43361e 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -1373,7 +1373,7 @@ ENTRY(_sys_call_table) .long _sys_epoll_pwait .long _sys_utimensat .long _sys_signalfd - .long _sys_timerfd + .long _sys_ni_syscall .long _sys_eventfd /* 350 */ .long _sys_pread64 .long _sys_pwrite64 diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 222da1501f47..27b082ac7f11 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -150,6 +150,7 @@ config ETRAX_FLASH_BUSWIDTH Width in bytes of the Flash bus (1, 2 or 4). Is usually 2. source arch/cris/arch-v10/Kconfig +source arch/cris/arch-v32/Kconfig endmenu @@ -157,8 +158,8 @@ source "net/Kconfig" # bring in ETRAX built-in drivers menu "Drivers for built-in interfaces" -# arch/cris/arch is a symlink to correct arch (arch-v10 or arch-v32) -source arch/cris/arch/drivers/Kconfig +source arch/cris/arch-v10/drivers/Kconfig +source arch/cris/arch-v32/drivers/Kconfig endmenu @@ -213,8 +214,6 @@ source "drivers/pci/Kconfig" source "drivers/usb/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/cris/Kconfig.debug" source "security/Kconfig" diff --git a/arch/cris/arch-v10/Kconfig b/arch/cris/arch-v10/Kconfig index f1ce6f64401d..1d61faec77cd 100644 --- a/arch/cris/arch-v10/Kconfig +++ b/arch/cris/arch-v10/Kconfig @@ -1,3 +1,5 @@ +if ETRAX_ARCH_V10 + # ETRAX 100LX v1 has a MMU "feature" requiring a low mapping config CRIS_LOW_MAP bool @@ -451,3 +453,5 @@ config ETRAX_POWERBUTTON_BIT default "25" help Configure where power button is connected. + +endif diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig index e3c0f2928149..96740ef497d4 100644 --- a/arch/cris/arch-v10/drivers/Kconfig +++ b/arch/cris/arch-v10/drivers/Kconfig @@ -1,3 +1,5 @@ +if ETRAX_ARCH_V10 + config ETRAX_ETHERNET bool "Ethernet support" depends on ETRAX_ARCH_V10 @@ -806,3 +808,5 @@ config ETRAX_DS1302_TRICKLE_CHARGE 1 = 2kohm, 2 = 4kohm, 3 = 4kohm 4 = 1 diode, 8 = 2 diodes Allowed values are (increasing current): 0, 11, 10, 9, 7, 6, 5 + +endif diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S index ec62c951fa3c..d1361dc119e2 100644 --- a/arch/cris/arch-v10/kernel/entry.S +++ b/arch/cris/arch-v10/kernel/entry.S @@ -1167,7 +1167,7 @@ sys_call_table: .long sys_epoll_pwait .long sys_utimensat /* 320 */ .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate diff --git a/arch/cris/arch-v32/Kconfig b/arch/cris/arch-v32/Kconfig index 4f79d8ed3e1c..d8acaa920e1c 100644 --- a/arch/cris/arch-v32/Kconfig +++ b/arch/cris/arch-v32/Kconfig @@ -1,3 +1,5 @@ +if ETRAX_ARCH_V32 + config ETRAX_DRAM_VIRTUAL_BASE hex depends on ETRAX_ARCH_V32 @@ -294,3 +296,5 @@ config ETRAX_DEF_GIO_PE_OUT help Configures the initial data for the general port E bits. Most products should use 00000 here. + +endif diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig index 9bccb5e2a960..c329cce2a0c3 100644 --- a/arch/cris/arch-v32/drivers/Kconfig +++ b/arch/cris/arch-v32/drivers/Kconfig @@ -1,3 +1,5 @@ +if ETRAX_ARCH_V32 + config ETRAX_ETHERNET bool "Ethernet support" depends on ETRAX_ARCH_V32 @@ -610,3 +612,5 @@ config ETRAX_STREAMCOPROC help This option enables a driver for the stream co-processor for cryptographic operations. + +endif diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c index 66f9500fbc02..e0364654fc44 100644 --- a/arch/cris/arch-v32/drivers/pci/dma.c +++ b/arch/cris/arch-v32/drivers/pci/dma.c @@ -93,7 +93,7 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); if (!dev->dma_mem) - goto out; + goto iounmap_out; dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); if (!dev->dma_mem->bitmap) goto free1_out; @@ -110,6 +110,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, free1_out: kfree(dev->dma_mem); + iounmap_out: + iounmap(mem_base); out: return 0; } diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index 43153e767bb1..96f7d70f4473 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -79,7 +79,7 @@ config FRV_OUTOFLINE_ATOMIC_OPS Setting this option causes the FR-V atomic operations to be mostly implemented out-of-line. - See Documentation/fujitsu/frv/atomic-ops.txt for more information. + See Documentation/frv/atomic-ops.txt for more information. config HIGHMEM bool "High memory support" @@ -138,6 +138,15 @@ config UCPAGE_OFFSET_C0000000 endchoice +config PAGE_OFFSET + hex + default 0x20000000 if UCPAGE_OFFSET_20000000 + default 0x40000000 if UCPAGE_OFFSET_40000000 + default 0x60000000 if UCPAGE_OFFSET_60000000 + default 0x80000000 if UCPAGE_OFFSET_80000000 + default 0xA0000000 if UCPAGE_OFFSET_A0000000 + default 0xC0000000 + config PROTECT_KERNEL bool "Protect core kernel against userspace" depends on !MMU @@ -322,11 +331,6 @@ config PCI onboard. If you have one of these boards and you wish to use the PCI facilities, say Y here. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config RESERVE_DMA_COHERENT bool "Reserve DMA coherent memory" depends on PCI && !MMU @@ -357,6 +361,11 @@ source "drivers/pcmcia/Kconfig" # should probably wait a while. menu "Power management options" + +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !SMP + source kernel/power/Kconfig endmenu @@ -375,8 +384,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/frv/Kconfig.debug" source "security/Kconfig" diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index f926c7094776..ca6a345b87e4 100644 --- a/arch/frv/kernel/entry.S +++ b/arch/frv/kernel/entry.S @@ -253,7 +253,7 @@ __entry_kernel_external_interrupt_reentry: andi.p gr5,#~PSR_ET,gr5 # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel - # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt + # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt andi gr25,#~0xc0,gr25 sti gr20,@(gr28,#REG_TBR) @@ -445,7 +445,7 @@ __entry_kernel_softprog_interrupt_reentry: sti gr22,@(sp,#REG_SP) # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel - # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt + # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt movsg cccr,gr20 andi gr20,#~0xc0,gr20 movgs gr20,cccr @@ -1494,7 +1494,7 @@ sys_call_table: .long sys_epoll_pwait .long sys_utimensat /* 320 */ .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S index f42b328b1dd0..ef7527b8b0c7 100644 --- a/arch/frv/kernel/vmlinux.lds.S +++ b/arch/frv/kernel/vmlinux.lds.S @@ -13,7 +13,7 @@ ENTRY(_start) jiffies = jiffies_64 + 4; -__page_offset = 0xc0000000; /* start of area covered by struct pages */ +__page_offset = CONFIG_PAGE_OFFSET; /* start of area covered by struct pages */ __kernel_image_start = __page_offset; /* address at which kernel image resides */ SECTIONS diff --git a/arch/frv/lib/atomic-ops.S b/arch/frv/lib/atomic-ops.S index 545cd325ac57..ee0ac905fb08 100644 --- a/arch/frv/lib/atomic-ops.S +++ b/arch/frv/lib/atomic-ops.S @@ -1,7 +1,7 @@ /* atomic-ops.S: kernel atomic operations * * For an explanation of how atomic ops work in this arch, see: - * Documentation/fujitsu/frv/atomic-ops.txt + * Documentation/frv/atomic-ops.txt * * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c index 1530a4111e6d..81757d55a5b5 100644 --- a/arch/frv/mm/mmu-context.c +++ b/arch/frv/mm/mmu-context.c @@ -181,7 +181,7 @@ int cxn_pin_by_pid(pid_t pid) /* get a handle on the mm_struct */ read_lock(&tasklist_lock); - tsk = find_task_by_pid(pid); + tsk = find_task_by_vpid(pid); if (tsk) { ret = -EINVAL; diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c index 7787c3cc52c6..1a2e5c8d03a9 100644 --- a/arch/frv/mm/pgalloc.c +++ b/arch/frv/mm/pgalloc.c @@ -140,7 +140,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) return pgd; } -void pgd_free(pgd_t *pgd) +void pgd_free(struct mm_struct *mm, pgd_t *pgd) { /* in the non-PAE case, clear_page_tables() clears user pgd entries */ quicklist_free(0, pgd_dtor, pgd); diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index ff6a8712bd6d..dc61222e1120 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -223,8 +223,6 @@ endmenu source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/h8300/Kconfig.debug" source "security/Kconfig" diff --git a/arch/h8300/platform/h8s/ints.c b/arch/h8300/platform/h8s/ints.c index 551fd5f30d82..ac10b9783850 100644 --- a/arch/h8300/platform/h8s/ints.c +++ b/arch/h8300/platform/h8s/ints.c @@ -121,7 +121,7 @@ void __init init_IRQ(void) printk("virtual vector at 0x%08lx\n",(unsigned long)ramvec); #if defined(CONFIG_GDB_DEBUG) - /* save orignal break vector */ + /* save original break vector */ break_vec = ramvec[TRAP3_VEC]; #else break_vec = VECTOR(trace_break); diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 5a41e75ae1fe..b0de1132dfc0 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -15,6 +15,8 @@ config IA64 select ACPI if (!IA64_HP_SIM) select PM if (!IA64_HP_SIM) select ARCH_SUPPORTS_MSI + select HAVE_OPROFILE + select HAVE_KPROBES default y help The Itanium Processor Family is Intel's 64-bit successor to @@ -80,7 +82,7 @@ config GENERIC_TIME_VSYSCALL bool default y -config ARCH_SETS_UP_PER_CPU_AREA +config HAVE_SETUP_PER_CPU_AREA def_bool y config DMI @@ -283,8 +285,8 @@ config SMP single processor systems. On a single processor system, the kernel will run faster if you say N here. - See also the <file:Documentation/smp.txt> and the SMP-HOWTO - available at <http://www.tldp.org/docs.html#howto>. + See also the SMP-HOWTO available at + <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -600,8 +602,6 @@ config IRQ_PER_CPU source "arch/ia64/hp/sim/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/ia64/Kconfig.debug" source "security/Kconfig" diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 45bf04eb7d70..a94445422cc6 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1265,7 +1265,7 @@ sba_fill_pdir( * the sglist do both. */ static SBA_INLINE int -sba_coalesce_chunks( struct ioc *ioc, +sba_coalesce_chunks(struct ioc *ioc, struct device *dev, struct scatterlist *startsg, int nents) { @@ -1275,6 +1275,7 @@ sba_coalesce_chunks( struct ioc *ioc, struct scatterlist *dma_sg; /* next DMA stream head */ unsigned long dma_offset, dma_len; /* start/len of DMA stream */ int n_mappings = 0; + unsigned int max_seg_size = dma_get_max_seg_size(dev); while (nents > 0) { unsigned long vaddr = (unsigned long) sba_sg_address(startsg); @@ -1314,6 +1315,9 @@ sba_coalesce_chunks( struct ioc *ioc, > DMA_CHUNK_SIZE) break; + if (dma_len + startsg->length > max_seg_size) + break; + /* ** Then look for virtually contiguous blocks. ** @@ -1441,7 +1445,7 @@ int sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, int di ** w/o this association, we wouldn't have coherent DMA! ** Access to the virtual address is what forces a two pass algorithm. */ - coalesced = sba_coalesce_chunks(ioc, sglist, nents); + coalesced = sba_coalesce_chunks(ioc, dev, sglist, nents); /* ** Program the I/O Pdir @@ -1871,7 +1875,7 @@ ioc_show(struct seq_file *s, void *v) return 0; } -static struct seq_operations ioc_seq_ops = { +static const struct seq_operations ioc_seq_ops = { .start = ioc_start, .next = ioc_next, .stop = ioc_stop, diff --git a/arch/ia64/ia32/ia32_support.c b/arch/ia64/ia32/ia32_support.c index d1d50cd1c38a..896b1ebbfb26 100644 --- a/arch/ia64/ia32/ia32_support.c +++ b/arch/ia64/ia32/ia32_support.c @@ -27,7 +27,7 @@ #include "ia32priv.h" -extern void die_if_kernel (char *str, struct pt_regs *regs, long err); +extern int die_if_kernel (char *str, struct pt_regs *regs, long err); struct exec_domain ia32_exec_domain; struct page *ia32_shared_page[NR_CPUS]; @@ -217,7 +217,8 @@ ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs) { siginfo_t siginfo; - die_if_kernel("Bad IA-32 interrupt", regs, int_num); + if (die_if_kernel("Bad IA-32 interrupt", regs, int_num)) + return; siginfo.si_signo = SIGTRAP; siginfo.si_errno = int_num; /* XXX is it OK to abuse si_errno like this? */ diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 242d79341120..919070a9aed7 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -1,7 +1,8 @@ /* * Extensible Firmware Interface * - * Based on Extensible Firmware Interface Specification version 0.9 April 30, 1999 + * Based on Extensible Firmware Interface Specification version 0.9 + * April 30, 1999 * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> @@ -48,145 +49,157 @@ static unsigned long mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL; #define efi_call_virt(f, args...) (*(f))(args) -#define STUB_GET_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_time_cap_t *atc = NULL; \ - efi_status_t ret; \ - \ - if (tc) \ - atc = adjust_arg(tc); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), adjust_arg(tm), atc); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_time_cap_t *atc = NULL; \ + efi_status_t ret; \ + \ + if (tc) \ + atc = adjust_arg(tc); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), \ + adjust_arg(tm), atc); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_time (efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), adjust_arg(tm)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_time (efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), \ + adjust_arg(tm)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \ - adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, \ + efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \ + adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_time_t *atm = NULL; \ - efi_status_t ret; \ - \ - if (tm) \ - atm = adjust_arg(tm); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \ - enabled, atm); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_time_t *atm = NULL; \ + efi_status_t ret; \ + \ + if (tm) \ + atm = adjust_arg(tm); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \ + enabled, atm); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \ - unsigned long *data_size, void *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - u32 *aattr = NULL; \ - efi_status_t ret; \ - \ - if (attr) \ - aattr = adjust_arg(attr); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_variable_t *) __va(runtime->get_variable), \ - adjust_arg(name), adjust_arg(vendor), aattr, \ - adjust_arg(data_size), adjust_arg(data)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \ + unsigned long *data_size, void *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + u32 *aattr = NULL; \ + efi_status_t ret; \ + \ + if (attr) \ + aattr = adjust_arg(attr); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_variable_t *) __va(runtime->get_variable), \ + adjust_arg(name), adjust_arg(vendor), aattr, \ + adjust_arg(data_size), adjust_arg(data)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_next_variable_t *) __va(runtime->get_next_variable), \ - adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, \ + efi_guid_t *vendor) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_next_variable_t *) __va(runtime->get_next_variable), \ + adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, unsigned long attr, \ - unsigned long data_size, void *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_variable_t *) __va(runtime->set_variable), \ - adjust_arg(name), adjust_arg(vendor), attr, data_size, \ - adjust_arg(data)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, \ + unsigned long attr, unsigned long data_size, \ + void *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_set_variable_t *) __va(runtime->set_variable), \ + adjust_arg(name), adjust_arg(vendor), attr, data_size, \ + adjust_arg(data)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_next_high_mono_count (u32 *count) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \ - __va(runtime->get_next_high_mono_count), adjust_arg(count)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_next_high_mono_count (u32 *count) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \ + __va(runtime->get_next_high_mono_count), \ + adjust_arg(count)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_RESET_SYSTEM(prefix, adjust_arg) \ -static void \ -prefix##_reset_system (int reset_type, efi_status_t status, \ - unsigned long data_size, efi_char16_t *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_char16_t *adata = NULL; \ - \ - if (data) \ - adata = adjust_arg(data); \ - \ - ia64_save_scratch_fpregs(fr); \ - efi_call_##prefix((efi_reset_system_t *) __va(runtime->reset_system), \ - reset_type, status, data_size, adata); \ - /* should not return, but just in case... */ \ - ia64_load_scratch_fpregs(fr); \ +#define STUB_RESET_SYSTEM(prefix, adjust_arg) \ +static void \ +prefix##_reset_system (int reset_type, efi_status_t status, \ + unsigned long data_size, efi_char16_t *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_char16_t *adata = NULL; \ + \ + if (data) \ + adata = adjust_arg(data); \ + \ + ia64_save_scratch_fpregs(fr); \ + efi_call_##prefix( \ + (efi_reset_system_t *) __va(runtime->reset_system), \ + reset_type, status, data_size, adata); \ + /* should not return, but just in case... */ \ + ia64_load_scratch_fpregs(fr); \ } #define phys_ptr(arg) ((__typeof__(arg)) ia64_tpa(arg)) @@ -223,7 +236,8 @@ efi_gettimeofday (struct timespec *ts) return; } - ts->tv_sec = mktime(tm.year, tm.month, tm.day, tm.hour, tm.minute, tm.second); + ts->tv_sec = mktime(tm.year, tm.month, tm.day, + tm.hour, tm.minute, tm.second); ts->tv_nsec = tm.nanosecond; } @@ -297,8 +311,8 @@ walk (efi_freemem_callback_t callback, void *arg, u64 attr) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that - * has memory that is available for OS use. + * Walk the EFI memory map and call CALLBACK once for each EFI memory + * descriptor that has memory that is available for OS use. */ void efi_memmap_walk (efi_freemem_callback_t callback, void *arg) @@ -307,8 +321,8 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that - * has memory that is available for uncached allocator. + * Walk the EFI memory map and call CALLBACK once for each EFI memory + * descriptor that has memory that is available for uncached allocator. */ void efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg) @@ -317,11 +331,10 @@ efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg) } /* - * Look for the PAL_CODE region reported by EFI and maps it using an + * Look for the PAL_CODE region reported by EFI and map it using an * ITR to enable safe PAL calls in virtual mode. See IA-64 Processor * Abstraction Layer chapter 11 in ADAG */ - void * efi_get_pal_addr (void) { @@ -341,45 +354,47 @@ efi_get_pal_addr (void) continue; if (++pal_code_count > 1) { - printk(KERN_ERR "Too many EFI Pal Code memory ranges, dropped @ %lx\n", - md->phys_addr); + printk(KERN_ERR "Too many EFI Pal Code memory ranges, " + "dropped @ %lx\n", md->phys_addr); continue; } /* - * The only ITLB entry in region 7 that is used is the one installed by - * __start(). That entry covers a 64MB range. + * The only ITLB entry in region 7 that is used is the one + * installed by __start(). That entry covers a 64MB range. */ mask = ~((1 << KERNEL_TR_PAGE_SHIFT) - 1); vaddr = PAGE_OFFSET + md->phys_addr; /* - * We must check that the PAL mapping won't overlap with the kernel - * mapping. + * We must check that the PAL mapping won't overlap with the + * kernel mapping. * - * PAL code is guaranteed to be aligned on a power of 2 between 4k and - * 256KB and that only one ITR is needed to map it. This implies that the - * PAL code is always aligned on its size, i.e., the closest matching page - * size supported by the TLB. Therefore PAL code is guaranteed never to - * cross a 64MB unless it is bigger than 64MB (very unlikely!). So for - * now the following test is enough to determine whether or not we need a - * dedicated ITR for the PAL code. + * PAL code is guaranteed to be aligned on a power of 2 between + * 4k and 256KB and that only one ITR is needed to map it. This + * implies that the PAL code is always aligned on its size, + * i.e., the closest matching page size supported by the TLB. + * Therefore PAL code is guaranteed never to cross a 64MB unless + * it is bigger than 64MB (very unlikely!). So for now the + * following test is enough to determine whether or not we need + * a dedicated ITR for the PAL code. */ if ((vaddr & mask) == (KERNEL_START & mask)) { - printk(KERN_INFO "%s: no need to install ITR for PAL code\n", - __FUNCTION__); + printk(KERN_INFO "%s: no need to install ITR for " + "PAL code\n", __FUNCTION__); continue; } if (efi_md_size(md) > IA64_GRANULE_SIZE) - panic("Woah! PAL code size bigger than a granule!"); + panic("Whoa! PAL code size bigger than a granule!"); #if EFI_DEBUG mask = ~((1 << IA64_GRANULE_SHIFT) - 1); - printk(KERN_INFO "CPU %d: mapping PAL code [0x%lx-0x%lx) into [0x%lx-0x%lx)\n", - smp_processor_id(), md->phys_addr, - md->phys_addr + efi_md_size(md), - vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE); + printk(KERN_INFO "CPU %d: mapping PAL code " + "[0x%lx-0x%lx) into [0x%lx-0x%lx)\n", + smp_processor_id(), md->phys_addr, + md->phys_addr + efi_md_size(md), + vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE); #endif return __va(md->phys_addr); } @@ -401,11 +416,11 @@ efi_map_pal_code (void) * Cannot write to CRx with PSR.ic=1 */ psr = ia64_clear_ic(); - ia64_itr(0x1, IA64_TR_PALCODE, GRANULEROUNDDOWN((unsigned long) pal_vaddr), + ia64_itr(0x1, IA64_TR_PALCODE, + GRANULEROUNDDOWN((unsigned long) pal_vaddr), pte_val(pfn_pte(__pa(pal_vaddr) >> PAGE_SHIFT, PAGE_KERNEL)), IA64_GRANULE_SHIFT); ia64_set_psr(psr); /* restore psr */ - ia64_srlz_i(); } void __init @@ -418,7 +433,10 @@ efi_init (void) char *cp, vendor[100] = "unknown"; int i; - /* it's too early to be able to use the standard kernel command line support... */ + /* + * It's too early to be able to use the standard kernel command line + * support... + */ for (cp = boot_command_line; *cp; ) { if (memcmp(cp, "mem=", 4) == 0) { mem_limit = memparse(cp + 4, &cp); @@ -434,9 +452,11 @@ efi_init (void) } } if (min_addr != 0UL) - printk(KERN_INFO "Ignoring memory below %luMB\n", min_addr >> 20); + printk(KERN_INFO "Ignoring memory below %luMB\n", + min_addr >> 20); if (max_addr != ~0UL) - printk(KERN_INFO "Ignoring memory above %luMB\n", max_addr >> 20); + printk(KERN_INFO "Ignoring memory above %luMB\n", + max_addr >> 20); efi.systab = __va(ia64_boot_param->efi_systab); @@ -444,9 +464,9 @@ efi_init (void) * Verify the EFI Table */ if (efi.systab == NULL) - panic("Woah! Can't find EFI system table.\n"); + panic("Whoa! Can't find EFI system table.\n"); if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) - panic("Woah! EFI system table signature incorrect\n"); + panic("Whoa! EFI system table signature incorrect\n"); if ((efi.systab->hdr.revision >> 16) == 0) printk(KERN_WARNING "Warning: EFI system table version " "%d.%02d, expected 1.00 or greater\n", @@ -464,7 +484,8 @@ efi_init (void) } printk(KERN_INFO "EFI v%u.%.02u by %s:", - efi.systab->hdr.revision >> 16, efi.systab->hdr.revision & 0xffff, vendor); + efi.systab->hdr.revision >> 16, + efi.systab->hdr.revision & 0xffff, vendor); efi.mps = EFI_INVALID_TABLE_ADDR; efi.acpi = EFI_INVALID_TABLE_ADDR; @@ -519,9 +540,12 @@ efi_init (void) efi_memory_desc_t *md; void *p; - for (i = 0, p = efi_map_start; p < efi_map_end; ++i, p += efi_desc_size) { + for (i = 0, p = efi_map_start; p < efi_map_end; + ++i, p += efi_desc_size) + { md = p; - printk("mem%02u: type=%u, attr=0x%lx, range=[0x%016lx-0x%016lx) (%luMB)\n", + printk("mem%02u: type=%u, attr=0x%lx, " + "range=[0x%016lx-0x%016lx) (%luMB)\n", i, md->type, md->attribute, md->phys_addr, md->phys_addr + efi_md_size(md), md->num_pages >> (20 - EFI_PAGE_SHIFT)); @@ -549,8 +573,8 @@ efi_enter_virtual_mode (void) md = p; if (md->attribute & EFI_MEMORY_RUNTIME) { /* - * Some descriptors have multiple bits set, so the order of - * the tests is relevant. + * Some descriptors have multiple bits set, so the + * order of the tests is relevant. */ if (md->attribute & EFI_MEMORY_WB) { md->virt_addr = (u64) __va(md->phys_addr); @@ -558,21 +582,26 @@ efi_enter_virtual_mode (void) md->virt_addr = (u64) ioremap(md->phys_addr, 0); } else if (md->attribute & EFI_MEMORY_WC) { #if 0 - md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P - | _PAGE_D - | _PAGE_MA_WC - | _PAGE_PL_0 - | _PAGE_AR_RW)); + md->virt_addr = ia64_remap(md->phys_addr, + (_PAGE_A | + _PAGE_P | + _PAGE_D | + _PAGE_MA_WC | + _PAGE_PL_0 | + _PAGE_AR_RW)); #else printk(KERN_INFO "EFI_MEMORY_WC mapping\n"); md->virt_addr = (u64) ioremap(md->phys_addr, 0); #endif } else if (md->attribute & EFI_MEMORY_WT) { #if 0 - md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P - | _PAGE_D | _PAGE_MA_WT - | _PAGE_PL_0 - | _PAGE_AR_RW)); + md->virt_addr = ia64_remap(md->phys_addr, + (_PAGE_A | + _PAGE_P | + _PAGE_D | + _PAGE_MA_WT | + _PAGE_PL_0 | + _PAGE_AR_RW)); #else printk(KERN_INFO "EFI_MEMORY_WT mapping\n"); md->virt_addr = (u64) ioremap(md->phys_addr, 0); @@ -583,16 +612,18 @@ efi_enter_virtual_mode (void) status = efi_call_phys(__va(runtime->set_virtual_address_map), ia64_boot_param->efi_memmap_size, - efi_desc_size, ia64_boot_param->efi_memdesc_version, + efi_desc_size, + ia64_boot_param->efi_memdesc_version, ia64_boot_param->efi_memmap); if (status != EFI_SUCCESS) { - printk(KERN_WARNING "warning: unable to switch EFI into virtual mode " - "(status=%lu)\n", status); + printk(KERN_WARNING "warning: unable to switch EFI into " + "virtual mode (status=%lu)\n", status); return; } /* - * Now that EFI is in virtual mode, we call the EFI functions more efficiently: + * Now that EFI is in virtual mode, we call the EFI functions more + * efficiently: */ efi.get_time = virt_get_time; efi.set_time = virt_set_time; @@ -606,8 +637,8 @@ efi_enter_virtual_mode (void) } /* - * Walk the EFI memory map looking for the I/O port range. There can only be one entry of - * this type, other I/O port ranges should be described via ACPI. + * Walk the EFI memory map looking for the I/O port range. There can only be + * one entry of this type, other I/O port ranges should be described via ACPI. */ u64 efi_get_iobase (void) @@ -678,7 +709,6 @@ efi_memmap_intersects (unsigned long phys_addr, unsigned long size) for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { md = p; - if (md->phys_addr < end && efi_md_end(md) > phys_addr) return 1; } @@ -731,7 +761,7 @@ efi_mem_attribute (unsigned long phys_addr, unsigned long size) if (!md || (md->attribute & ~EFI_MEMORY_RUNTIME) != attr) return 0; } while (md); - return 0; + return 0; /* never reached */ } u64 @@ -767,7 +797,7 @@ kern_mem_attribute (unsigned long phys_addr, unsigned long size) if (!md || md->attribute != attr) return 0; } while (md); - return 0; + return 0; /* never reached */ } EXPORT_SYMBOL(kern_mem_attribute); @@ -883,7 +913,7 @@ efi_uart_console_only(void) return 1; uart = 0; } - hdr = (struct efi_generic_dev_path *) ((u8 *) hdr + hdr->length); + hdr = (struct efi_generic_dev_path *)((u8 *) hdr + hdr->length); } printk(KERN_ERR "Malformed %s value\n", name); return 0; @@ -921,10 +951,12 @@ find_memmap_space (void) if (!efi_wb(md)) { continue; } - if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) { + if (pmd == NULL || !efi_wb(pmd) || + efi_md_end(pmd) != md->phys_addr) { contig_low = GRANULEROUNDUP(md->phys_addr); contig_high = efi_md_end(md); - for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) { + for (q = p + efi_desc_size; q < efi_map_end; + q += efi_desc_size) { check_md = q; if (!efi_wb(check_md)) break; @@ -988,8 +1020,9 @@ efi_memmap_init(unsigned long *s, unsigned long *e) for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) { md = p; if (!efi_wb(md)) { - if (efi_uc(md) && (md->type == EFI_CONVENTIONAL_MEMORY || - md->type == EFI_BOOT_SERVICES_DATA)) { + if (efi_uc(md) && + (md->type == EFI_CONVENTIONAL_MEMORY || + md->type == EFI_BOOT_SERVICES_DATA)) { k->attribute = EFI_MEMORY_UC; k->start = md->phys_addr; k->num_pages = md->num_pages; @@ -997,10 +1030,12 @@ efi_memmap_init(unsigned long *s, unsigned long *e) } continue; } - if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) { + if (pmd == NULL || !efi_wb(pmd) || + efi_md_end(pmd) != md->phys_addr) { contig_low = GRANULEROUNDUP(md->phys_addr); contig_high = efi_md_end(md); - for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) { + for (q = p + efi_desc_size; q < efi_map_end; + q += efi_desc_size) { check_md = q; if (!efi_wb(check_md)) break; @@ -1025,13 +1060,17 @@ efi_memmap_init(unsigned long *s, unsigned long *e) if (md->phys_addr < contig_low) { lim = min(efi_md_end(md), contig_low); if (efi_uc(md)) { - if (k > kern_memmap && (k-1)->attribute == EFI_MEMORY_UC && + if (k > kern_memmap && + (k-1)->attribute == EFI_MEMORY_UC && kmd_end(k-1) == md->phys_addr) { - (k-1)->num_pages += (lim - md->phys_addr) >> EFI_PAGE_SHIFT; + (k-1)->num_pages += + (lim - md->phys_addr) + >> EFI_PAGE_SHIFT; } else { k->attribute = EFI_MEMORY_UC; k->start = md->phys_addr; - k->num_pages = (lim - md->phys_addr) >> EFI_PAGE_SHIFT; + k->num_pages = (lim - md->phys_addr) + >> EFI_PAGE_SHIFT; k++; } } @@ -1049,7 +1088,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e) } else { k->attribute = EFI_MEMORY_UC; k->start = lim; - k->num_pages = (efi_md_end(md) - lim) >> EFI_PAGE_SHIFT; + k->num_pages = (efi_md_end(md) - lim) + >> EFI_PAGE_SHIFT; k++; } } @@ -1151,8 +1191,10 @@ efi_initialize_iomem_resources(struct resource *code_resource, break; } - if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "failed to alocate resource for iomem\n"); + if ((res = kzalloc(sizeof(struct resource), + GFP_KERNEL)) == NULL) { + printk(KERN_ERR + "failed to allocate resource for iomem\n"); return; } @@ -1187,44 +1229,44 @@ efi_initialize_iomem_resources(struct resource *code_resource, rsvd_regions are sorted */ unsigned long __init -kdump_find_rsvd_region (unsigned long size, - struct rsvd_region *r, int n) +kdump_find_rsvd_region (unsigned long size, struct rsvd_region *r, int n) { - int i; - u64 start, end; - u64 alignment = 1UL << _PAGE_SIZE_64M; - void *efi_map_start, *efi_map_end, *p; - efi_memory_desc_t *md; - u64 efi_desc_size; - - efi_map_start = __va(ia64_boot_param->efi_memmap); - efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size; - efi_desc_size = ia64_boot_param->efi_memdesc_size; - - for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { - md = p; - if (!efi_wb(md)) - continue; - start = ALIGN(md->phys_addr, alignment); - end = efi_md_end(md); - for (i = 0; i < n; i++) { - if (__pa(r[i].start) >= start && __pa(r[i].end) < end) { - if (__pa(r[i].start) > start + size) - return start; - start = ALIGN(__pa(r[i].end), alignment); - if (i < n-1 && __pa(r[i+1].start) < start + size) - continue; - else - break; + int i; + u64 start, end; + u64 alignment = 1UL << _PAGE_SIZE_64M; + void *efi_map_start, *efi_map_end, *p; + efi_memory_desc_t *md; + u64 efi_desc_size; + + efi_map_start = __va(ia64_boot_param->efi_memmap); + efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size; + efi_desc_size = ia64_boot_param->efi_memdesc_size; + + for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { + md = p; + if (!efi_wb(md)) + continue; + start = ALIGN(md->phys_addr, alignment); + end = efi_md_end(md); + for (i = 0; i < n; i++) { + if (__pa(r[i].start) >= start && __pa(r[i].end) < end) { + if (__pa(r[i].start) > start + size) + return start; + start = ALIGN(__pa(r[i].end), alignment); + if (i < n-1 && + __pa(r[i+1].start) < start + size) + continue; + else + break; + } } - } - if (end > start + size) - return start; - } - - printk(KERN_WARNING "Cannot reserve 0x%lx byte of memory for crashdump\n", - size); - return ~0UL; + if (end > start + size) + return start; + } + + printk(KERN_WARNING + "Cannot reserve 0x%lx byte of memory for crashdump\n", size); + return ~0UL; } #endif diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index c36f43c94600..f5d3efbfbeda 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1586,7 +1586,7 @@ sys_call_table: data8 sys_epoll_pwait // 1305 data8 sys_utimensat data8 sys_signalfd - data8 sys_timerfd + data8 sys_ni_syscall data8 sys_eventfd .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls diff --git a/arch/ia64/kernel/fsyscall_gtod_data.h b/arch/ia64/kernel/fsyscall_gtod_data.h index 490dab55fba3..57d2ee6c83e1 100644 --- a/arch/ia64/kernel/fsyscall_gtod_data.h +++ b/arch/ia64/kernel/fsyscall_gtod_data.h @@ -14,10 +14,10 @@ struct fsyscall_gtod_data_t { u32 clk_shift; void *clk_fsys_mmio; cycle_t clk_cycle_last; -} __attribute__ ((aligned (L1_CACHE_BYTES))); +} ____cacheline_aligned; struct itc_jitter_data_t { int itc_jitter; cycle_t itc_lastcycle; -} __attribute__ ((aligned (L1_CACHE_BYTES))); +} ____cacheline_aligned; diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index c3b4412ccc67..8e7193d55528 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -12,6 +12,9 @@ EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(strlen); +#include<asm/pgtable.h> +EXPORT_SYMBOL_GPL(empty_zero_page); + #include <asm/checksum.h> EXPORT_SYMBOL(ip_fast_csum); /* hand-coded assembly */ EXPORT_SYMBOL(csum_ipv6_magic); diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index fc4d2676264f..b618487cdc85 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -381,9 +381,10 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) { unsigned int i; - i = atomic_sub_return(1, &kcb->prev_kprobe_index); - __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i].kp; - kcb->kprobe_status = kcb->prev_kprobe[i].status; + i = atomic_read(&kcb->prev_kprobe_index); + __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i-1].kp; + kcb->kprobe_status = kcb->prev_kprobe[i-1].status; + atomic_sub(1, &kcb->prev_kprobe_index); } static void __kprobes set_current_kprobe(struct kprobe *p, diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 6dbf5919d2d0..846e7e036b13 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -2,61 +2,69 @@ * File: mca.c * Purpose: Generic MCA handling layer * - * Updated for latest kernel * Copyright (C) 2003 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> * * Copyright (C) 2002 Dell Inc. - * Copyright (C) Matt Domsch (Matt_Domsch@dell.com) + * Copyright (C) Matt Domsch <Matt_Domsch@dell.com> * * Copyright (C) 2002 Intel - * Copyright (C) Jenna Hall (jenna.s.hall@intel.com) + * Copyright (C) Jenna Hall <jenna.s.hall@intel.com> * * Copyright (C) 2001 Intel - * Copyright (C) Fred Lewis (frederick.v.lewis@intel.com) + * Copyright (C) Fred Lewis <frederick.v.lewis@intel.com> * * Copyright (C) 2000 Intel - * Copyright (C) Chuck Fleckenstein (cfleck@co.intel.com) + * Copyright (C) Chuck Fleckenstein <cfleck@co.intel.com> * * Copyright (C) 1999, 2004 Silicon Graphics, Inc. - * Copyright (C) Vijay Chander(vijay@engr.sgi.com) + * Copyright (C) Vijay Chander <vijay@engr.sgi.com> * - * 03/04/15 D. Mosberger Added INIT backtrace support. - * 02/03/25 M. Domsch GUID cleanups + * Copyright (C) 2006 FUJITSU LIMITED + * Copyright (C) Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> * - * 02/01/04 J. Hall Aligned MCA stack to 16 bytes, added platform vs. CPU - * error flag, set SAL default return values, changed - * error record structure to linked list, added init call - * to sal_get_state_info_size(). + * 2000-03-29 Chuck Fleckenstein <cfleck@co.intel.com> + * Fixed PAL/SAL update issues, began MCA bug fixes, logging issues, + * added min save state dump, added INIT handler. * - * 01/01/03 F. Lewis Added setup of CMCI and CPEI IRQs, logging of corrected - * platform errors, completed code for logging of - * corrected & uncorrected machine check errors, and - * updated for conformance with Nov. 2000 revision of the - * SAL 3.0 spec. - * 00/03/29 C. Fleckenstein Fixed PAL/SAL update issues, began MCA bug fixes, logging issues, - * added min save state dump, added INIT handler. + * 2001-01-03 Fred Lewis <frederick.v.lewis@intel.com> + * Added setup of CMCI and CPEI IRQs, logging of corrected platform + * errors, completed code for logging of corrected & uncorrected + * machine check errors, and updated for conformance with Nov. 2000 + * revision of the SAL 3.0 spec. + * + * 2002-01-04 Jenna Hall <jenna.s.hall@intel.com> + * Aligned MCA stack to 16 bytes, added platform vs. CPU error flag, + * set SAL default return values, changed error record structure to + * linked list, added init call to sal_get_state_info_size(). + * + * 2002-03-25 Matt Domsch <Matt_Domsch@dell.com> + * GUID cleanups. + * + * 2003-04-15 David Mosberger-Tang <davidm@hpl.hp.com> + * Added INIT backtrace support. * * 2003-12-08 Keith Owens <kaos@sgi.com> - * smp_call_function() must not be called from interrupt context (can - * deadlock on tasklist_lock). Use keventd to call smp_call_function(). + * smp_call_function() must not be called from interrupt context + * (can deadlock on tasklist_lock). + * Use keventd to call smp_call_function(). * * 2004-02-01 Keith Owens <kaos@sgi.com> - * Avoid deadlock when using printk() for MCA and INIT records. - * Delete all record printing code, moved to salinfo_decode in user space. - * Mark variables and functions static where possible. - * Delete dead variables and functions. - * Reorder to remove the need for forward declarations and to consolidate - * related code. + * Avoid deadlock when using printk() for MCA and INIT records. + * Delete all record printing code, moved to salinfo_decode in user + * space. Mark variables and functions static where possible. + * Delete dead variables and functions. Reorder to remove the need + * for forward declarations and to consolidate related code. * * 2005-08-12 Keith Owens <kaos@sgi.com> - * Convert MCA/INIT handlers to use per event stacks and SAL/OS state. + * Convert MCA/INIT handlers to use per event stacks and SAL/OS + * state. * * 2005-10-07 Keith Owens <kaos@sgi.com> * Add notify_die() hooks. * * 2006-09-15 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> - * Add printing support for MCA/INIT. + * Add printing support for MCA/INIT. * * 2007-04-27 Russ Anderson <rja@sgi.com> * Support multiple cpus going through OS_MCA in the same event. diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index 0f5965fcdf85..8bc7d259e0c6 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -1,24 +1,28 @@ -// -// assembly portion of the IA64 MCA handling -// -// Mods by cfleck to integrate into kernel build -// 00/03/15 davidm Added various stop bits to get a clean compile -// -// 00/03/29 cfleck Added code to save INIT handoff state in pt_regs format, switch to temp -// kstack, switch modes, jump to C INIT handler -// -// 02/01/04 J.Hall <jenna.s.hall@intel.com> -// Before entering virtual mode code: -// 1. Check for TLB CPU error -// 2. Restore current thread pointer to kr6 -// 3. Move stack ptr 16 bytes to conform to C calling convention -// -// 04/11/12 Russ Anderson <rja@sgi.com> -// Added per cpu MCA/INIT stack save areas. -// -// 12/08/05 Keith Owens <kaos@sgi.com> -// Use per cpu MCA/INIT stacks for all data. -// +/* + * File: mca_asm.S + * Purpose: assembly portion of the IA64 MCA handling + * + * Mods by cfleck to integrate into kernel build + * + * 2000-03-15 David Mosberger-Tang <davidm@hpl.hp.com> + * Added various stop bits to get a clean compile + * + * 2000-03-29 Chuck Fleckenstein <cfleck@co.intel.com> + * Added code to save INIT handoff state in pt_regs format, + * switch to temp kstack, switch modes, jump to C INIT handler + * + * 2002-01-04 J.Hall <jenna.s.hall@intel.com> + * Before entering virtual mode code: + * 1. Check for TLB CPU error + * 2. Restore current thread pointer to kr6 + * 3. Move stack ptr 16 bytes to conform to C calling convention + * + * 2004-11-12 Russ Anderson <rja@sgi.com> + * Added per cpu MCA/INIT stack save areas. + * + * 2005-12-08 Keith Owens <kaos@sgi.com> + * Use per cpu MCA/INIT stacks for all data. + */ #include <linux/threads.h> #include <asm/asmmacro.h> diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index aba813c2c150..fab1d21a4f2c 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c @@ -3,7 +3,7 @@ * Purpose: Generic MCA handling layer * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> * Copyright (C) 2005 Silicon Graphics, Inc * Copyright (C) 2005 Keith Owens <kaos@sgi.com> * Copyright (C) 2006 Russ Anderson <rja@sgi.com> diff --git a/arch/ia64/kernel/mca_drv.h b/arch/ia64/kernel/mca_drv.h index 485e34d0b199..53b8ecb5b4b9 100644 --- a/arch/ia64/kernel/mca_drv.h +++ b/arch/ia64/kernel/mca_drv.h @@ -3,7 +3,7 @@ * Purpose: Define helpers for Generic MCA handling * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> */ /* * Processor error section: diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S index 3bccb06c8d21..767ac2c20d16 100644 --- a/arch/ia64/kernel/mca_drv_asm.S +++ b/arch/ia64/kernel/mca_drv_asm.S @@ -3,7 +3,7 @@ * Purpose: Assembly portion of Generic MCA handling * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> */ #include <linux/threads.h> diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c index e699eb6c44be..e58f4367cf11 100644 --- a/arch/ia64/kernel/module.c +++ b/arch/ia64/kernel/module.c @@ -940,14 +940,3 @@ module_arch_cleanup (struct module *mod) if (mod->arch.core_unw_table) unw_remove_unwind_table(mod->arch.core_unw_table); } - -#ifdef CONFIG_SMP -void -percpu_modcopy (void *pcpudst, const void *src, unsigned long size) -{ - unsigned int i; - for_each_possible_cpu(i) { - memcpy(pcpudst + per_cpu_offset(i), src, size); - } -} -#endif /* CONFIG_SMP */ diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 73e7c2e40b54..78acd9fe97e9 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -2631,7 +2631,7 @@ pfm_task_incompatible(pfm_context_t *ctx, struct task_struct *task) */ if (task == current) return 0; - if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) { + if (!task_is_stopped_or_traced(task)) { DPRINT(("cannot attach to non-stopped task [%d] state=%ld\n", task_pid_nr(task), task->state)); return -EBUSY; } @@ -2654,11 +2654,11 @@ pfm_get_task(pfm_context_t *ctx, pid_t pid, struct task_struct **task) /* XXX: need to add more checks here */ if (pid < 2) return -EPERM; - if (pid != current->pid) { + if (pid != task_pid_vnr(current)) { read_lock(&tasklist_lock); - p = find_task_by_pid(pid); + p = find_task_by_vpid(pid); /* make sure task cannot go away while we operate on it */ if (p) get_task_struct(p); @@ -4792,7 +4792,7 @@ recheck: * the task must be stopped. */ if (PFM_CMD_STOPPED(cmd)) { - if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) { + if (!task_is_stopped_or_traced(task)) { DPRINT(("[%d] task not in stopped state\n", task_pid_nr(task))); return -EBUSY; } @@ -5795,7 +5795,7 @@ pfm_proc_show(struct seq_file *m, void *v) return 0; } -struct seq_operations pfm_seq_ops = { +const struct seq_operations pfm_seq_ops = { .start = pfm_proc_start, .next = pfm_proc_next, .stop = pfm_proc_stop, diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c index 27c2ef445a56..f44fe8412162 100644 --- a/arch/ia64/kernel/sal.c +++ b/arch/ia64/kernel/sal.c @@ -284,6 +284,7 @@ ia64_sal_cache_flush (u64 cache_type) SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0); return isrv.status; } +EXPORT_SYMBOL_GPL(ia64_sal_cache_flush); void __init ia64_sal_init (struct ia64_sal_systab *systab) @@ -372,3 +373,16 @@ ia64_sal_oemcall_reentrant(struct ia64_sal_retval *isrvp, u64 oemfunc, return 0; } EXPORT_SYMBOL(ia64_sal_oemcall_reentrant); + +long +ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second, + unsigned long *drift_info) +{ + struct ia64_sal_retval isrv; + + SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0); + *ticks_per_second = isrv.v0; + *drift_info = isrv.v1; + return isrv.status; +} +EXPORT_SYMBOL_GPL(ia64_sal_freq_base); diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 86028c69861e..ebd1a09f3201 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -654,7 +654,7 @@ c_stop (struct seq_file *m, void *v) { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index f0fc4d8465ad..480b1a5085d5 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -767,17 +767,6 @@ void __cpu_die(unsigned int cpu) } printk(KERN_ERR "CPU %u didn't die...\n", cpu); } -#else /* !CONFIG_HOTPLUG_CPU */ -int __cpu_disable(void) -{ - return -ENOSYS; -} - -void __cpu_die(unsigned int cpu) -{ - /* We said "no" in __cpu_disable */ - BUG(); -} #endif /* CONFIG_HOTPLUG_CPU */ void diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 78d65cb947d2..f0cda765e681 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -35,7 +35,7 @@ trap_init (void) fpswa_interface = __va(ia64_boot_param->fpswa); } -void +int die (const char *str, struct pt_regs *regs, long err) { static struct { @@ -62,8 +62,11 @@ die (const char *str, struct pt_regs *regs, long err) if (++die.lock_owner_depth < 3) { printk("%s[%d]: %s %ld [%d]\n", current->comm, task_pid_nr(current), str, err, ++die_counter); - (void) notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); - show_regs(regs); + if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV) + != NOTIFY_STOP) + show_regs(regs); + else + regs = NULL; } else printk(KERN_ERR "Recursive die() failure, output suppressed\n"); @@ -72,17 +75,22 @@ die (const char *str, struct pt_regs *regs, long err) add_taint(TAINT_DIE); spin_unlock_irq(&die.lock); + if (!regs) + return 1; + if (panic_on_oops) panic("Fatal exception"); do_exit(SIGSEGV); + return 0; } -void +int die_if_kernel (char *str, struct pt_regs *regs, long err) { if (!user_mode(regs)) - die(str, regs, err); + return die(str, regs, err); + return 0; } void @@ -102,7 +110,8 @@ __kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs) if (notify_die(DIE_BREAK, "break 0", regs, break_num, TRAP_BRKPT, SIGTRAP) == NOTIFY_STOP) return; - die_if_kernel("bugcheck!", regs, break_num); + if (die_if_kernel("bugcheck!", regs, break_num)) + return; sig = SIGILL; code = ILL_ILLOPC; break; @@ -155,8 +164,9 @@ __kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs) break; default: - if (break_num < 0x40000 || break_num > 0x100000) - die_if_kernel("Bad break", regs, break_num); + if ((break_num < 0x40000 || break_num > 0x100000) + && die_if_kernel("Bad break", regs, break_num)) + return; if (break_num < 0x80000) { sig = SIGILL; code = __ILL_BREAK; @@ -402,14 +412,15 @@ ia64_illegal_op_fault (unsigned long ec, long arg1, long arg2, long arg3, #endif sprintf(buf, "IA-64 Illegal operation fault"); - die_if_kernel(buf, ®s, 0); + rv.fkt = 0; + if (die_if_kernel(buf, ®s, 0)) + return rv; memset(&si, 0, sizeof(si)); si.si_signo = SIGILL; si.si_code = ILL_ILLOPC; si.si_addr = (void __user *) (regs.cr_iip + ia64_psr(®s)->ri); force_sig_info(SIGILL, &si, current); - rv.fkt = 0; return rv; } @@ -644,6 +655,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa, sprintf(buf, "Fault %lu", vector); break; } - die_if_kernel(buf, ®s, error); - force_sig(SIGILL, current); + if (!die_if_kernel(buf, ®s, error)) + force_sig(SIGILL, current); } diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index f6a1aeb742b3..52f70bbc192a 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -23,7 +23,7 @@ #include <asm/uaccess.h> #include <asm/unaligned.h> -extern void die_if_kernel(char *str, struct pt_regs *regs, long err); +extern int die_if_kernel(char *str, struct pt_regs *regs, long err); #undef DEBUG_UNALIGNED_TRAP @@ -675,8 +675,9 @@ emulate_load_updates (update_t type, load_store_t ld, struct pt_regs *regs, unsi */ if (ld.x6_op == 1 || ld.x6_op == 3) { printk(KERN_ERR "%s: register update on speculative load, error\n", __FUNCTION__); - die_if_kernel("unaligned reference on speculative load with register update\n", - regs, 30); + if (die_if_kernel("unaligned reference on speculative load with register update\n", + regs, 30)) + return; } @@ -1317,7 +1318,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) if (ia64_psr(regs)->be) { /* we don't support big-endian accesses */ - die_if_kernel("big-endian unaligned accesses are not supported", regs, 0); + if (die_if_kernel("big-endian unaligned accesses are not supported", regs, 0)) + return; goto force_sigbus; } @@ -1534,7 +1536,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) ia64_handle_exception(regs, eh); goto done; } - die_if_kernel("error during unaligned kernel access\n", regs, ret); + if (die_if_kernel("error during unaligned kernel access\n", regs, ret)) + return; /* NOT_REACHED */ } force_sigbus: diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index 7571076a16a1..3e69881648a3 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -16,7 +16,7 @@ #include <asm/system.h> #include <asm/uaccess.h> -extern void die (char *, struct pt_regs *, long); +extern int die(char *, struct pt_regs *, long); #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, int trap) @@ -267,9 +267,11 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re else printk(KERN_ALERT "Unable to handle kernel paging request at " "virtual address %016lx\n", address); - die("Oops", regs, isr); + if (die("Oops", regs, isr)) + regs = NULL; bust_spinlocks(0); - do_exit(SIGKILL); + if (regs) + do_exit(SIGKILL); return; out_of_memory: diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c index f3c69329e145..dfc6bf1c7b41 100644 --- a/arch/ia64/sn/kernel/sn2/sn2_smp.c +++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c @@ -523,7 +523,7 @@ static ssize_t sn2_ptc_proc_write(struct file *file, const char __user *user, si return count; } -static struct seq_operations sn2_ptc_seq_ops = { +static const struct seq_operations sn2_ptc_seq_ops = { .start = sn2_ptc_seq_start, .next = sn2_ptc_seq_next, .stop = sn2_ptc_seq_stop, diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 1a8e49607f11..4b0d1538e7e5 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -33,6 +33,7 @@ #include <linux/smp_lock.h> #include <linux/nodemask.h> #include <linux/smp.h> +#include <linux/mutex.h> #include <asm/processor.h> #include <asm/topology.h> @@ -50,7 +51,7 @@ static void *sn_hwperf_salheap = NULL; static int sn_hwperf_obj_cnt = 0; static nasid_t sn_hwperf_master_nasid = INVALID_NASID; static int sn_hwperf_init(void); -static DECLARE_MUTEX(sn_hwperf_init_mutex); +static DEFINE_MUTEX(sn_hwperf_init_mutex); #define cnode_possible(n) ((n) < num_cnodes) @@ -577,7 +578,7 @@ static void sn_topology_stop(struct seq_file *m, void *v) /* * /proc/sgi_sn/sn_topology, read-only using seq_file */ -static struct seq_operations sn_topology_seq_ops = { +static const struct seq_operations sn_topology_seq_ops = { .start = sn_topology_start, .next = sn_topology_next, .stop = sn_topology_stop, @@ -884,10 +885,10 @@ static int sn_hwperf_init(void) int e = 0; /* single threaded, once-only initialization */ - down(&sn_hwperf_init_mutex); + mutex_lock(&sn_hwperf_init_mutex); if (sn_hwperf_salheap) { - up(&sn_hwperf_init_mutex); + mutex_unlock(&sn_hwperf_init_mutex); return e; } @@ -936,7 +937,7 @@ out: sn_hwperf_salheap = NULL; sn_hwperf_obj_cnt = 0; } - up(&sn_hwperf_init_mutex); + mutex_unlock(&sn_hwperf_init_mutex); return e; } diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index f7237c5f531e..795180b8fd8e 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -8,6 +8,7 @@ mainmenu "Linux/M32R Kernel Configuration" config M32R bool default y + select HAVE_OPROFILE config SBUS bool @@ -302,8 +303,7 @@ config SMP Y to "Enhanced Real Time Clock Support", below. The "Advanced Power Management" code will be disabled if you say Y here. - See also the <file:Documentation/smp.txt>, - and the SMP-HOWTO available at + See also the SMP-HOWTO available at <http://www.linuxdoc.org/docs.html#howto>. If you don't know what to do here, say N. @@ -359,11 +359,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.linuxdoc.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - choice prompt "PCI access mode" depends on PCI @@ -431,8 +426,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/m32r/Kconfig.debug" source "security/Kconfig" diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c index ee3c8be12fa0..01d877c6868f 100644 --- a/arch/m32r/boot/compressed/m32r_sio.c +++ b/arch/m32r/boot/compressed/m32r_sio.c @@ -17,7 +17,7 @@ static int puts(const char *s) return 0; } -#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT) +#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT) #include <asm/m32r.h> #include <asm/io.h> @@ -52,7 +52,7 @@ static void putc(char c) } *BOOT_SIO0TXB = c; } -#else /* !(CONFIG_PLAT_M32700UT_Alpha) && !(CONFIG_PLAT_M32700UT) */ +#else /* !(CONFIG_PLAT_M32700UT) */ #if defined(CONFIG_PLAT_MAPPI2) #define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14) #define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30) diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index ed4d0756c5db..9aa615d3a5b2 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -476,7 +476,7 @@ unregister_debug_trap(struct task_struct *child, unsigned long addr, return 0; } - /* Recover orignal instruction code. */ + /* Recover original instruction code. */ *code = p->insn[i]; /* Shift debug trap entries. */ diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S index 95aa79874847..aa3bf4cfab37 100644 --- a/arch/m32r/kernel/syscall_table.S +++ b/arch/m32r/kernel/syscall_table.S @@ -321,6 +321,6 @@ ENTRY(sys_call_table) .long sys_epoll_pwait .long sys_utimensat /* 320 */ .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 01dee84f840a..ffabd01c45eb 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -145,11 +145,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config MAC bool "Macintosh support" depends on !MMU_SUN3 @@ -582,20 +577,6 @@ config MAC_HID depends on INPUT_ADBHID default y -config MAC_ADBKEYCODES - bool "Support for ADB raw keycodes" - depends on INPUT_ADBHID - help - This provides support for sending raw ADB keycodes to console - devices. This is the default up to 2.4.0, but in future this may be - phased out in favor of generic Linux keycodes. If you say Y here, - you can dynamically switch via the - /proc/sys/dev/mac_hid/keyboard_sends_linux_keycodes - sysctl and with the "keyboard_sends_linux_keycodes=" kernel - argument. - - If unsure, say Y here. - config ADB_KEYBOARD bool "Support for ADB keyboard (old driver)" depends on MAC && !INPUT_ADBHID @@ -683,8 +664,6 @@ endmenu source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/m68k/Kconfig.debug" source "security/Kconfig" diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 4a1bd44ff162..2cba605cb59d 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -13,16 +13,15 @@ # Copyright (C) 1994 by Hamish Macdonald # -# test for cross compiling -COMPILE_ARCH = $(shell uname -m) - # override top level makefile AS += -m68020 LDFLAGS := -m m68kelf LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds -ifneq ($(COMPILE_ARCH),$(ARCH)) - # prefix for cross-compiling binaries - CROSS_COMPILE = m68k-linux-gnu- +ifneq ($(SUBARCH),$(ARCH)) + ifeq ($(CROSS_COMPILE),) + CROSS_COMPILE := $(call cc-cross-prefix, \ + m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-) + endif endif ifdef CONFIG_SUN3 diff --git a/arch/m68k/amiga/Makefile b/arch/m68k/amiga/Makefile index 8b415651edee..6a0d7650f980 100644 --- a/arch/m68k/amiga/Makefile +++ b/arch/m68k/amiga/Makefile @@ -2,6 +2,6 @@ # Makefile for Linux arch/m68k/amiga source directory # -obj-y := config.o amiints.o cia.o chipram.o amisound.o amiga_ksyms.o +obj-y := config.o amiints.o cia.o chipram.o amisound.o obj-$(CONFIG_AMIGA_PCMCIA) += pcmcia.o diff --git a/arch/m68k/amiga/amiga_ksyms.c b/arch/m68k/amiga/amiga_ksyms.c deleted file mode 100644 index 7fdcf6bf3ada..000000000000 --- a/arch/m68k/amiga/amiga_ksyms.c +++ /dev/null @@ -1,33 +0,0 @@ -#include <linux/module.h> -#include <linux/types.h> -#include <asm/ptrace.h> -#include <asm/amigahw.h> -#include <asm/amigaints.h> -#include <asm/amipcmcia.h> - -extern volatile u_short amiga_audio_min_period; -extern u_short amiga_audio_period; - -/* - * Add things here when you find the need for it. - */ -EXPORT_SYMBOL(amiga_model); -EXPORT_SYMBOL(amiga_chipset); -EXPORT_SYMBOL(amiga_hw_present); -EXPORT_SYMBOL(amiga_eclock); -EXPORT_SYMBOL(amiga_colorclock); -EXPORT_SYMBOL(amiga_chip_alloc); -EXPORT_SYMBOL(amiga_chip_free); -EXPORT_SYMBOL(amiga_chip_avail); -EXPORT_SYMBOL(amiga_chip_size); -EXPORT_SYMBOL(amiga_audio_period); -EXPORT_SYMBOL(amiga_audio_min_period); - -#ifdef CONFIG_AMIGA_PCMCIA - EXPORT_SYMBOL(pcmcia_reset); - EXPORT_SYMBOL(pcmcia_copy_tuple); - EXPORT_SYMBOL(pcmcia_program_voltage); - EXPORT_SYMBOL(pcmcia_access_speed); - EXPORT_SYMBOL(pcmcia_write_enable); - EXPORT_SYMBOL(pcmcia_write_disable); -#endif diff --git a/arch/m68k/amiga/amisound.c b/arch/m68k/amiga/amisound.c index 1f5bfb584297..61e5c54625ae 100644 --- a/arch/m68k/amiga/amisound.c +++ b/arch/m68k/amiga/amisound.c @@ -12,6 +12,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/string.h> +#include <linux/module.h> #include <asm/system.h> #include <asm/amigahw.h> @@ -21,7 +22,7 @@ static const signed char sine_data[] = { 0, 39, 75, 103, 121, 127, 121, 103, 75, 39, 0, -39, -75, -103, -121, -127, -121, -103, -75, -39 }; -#define DATA_SIZE (sizeof(sine_data)/sizeof(sine_data[0])) +#define DATA_SIZE ARRAY_SIZE(sine_data) #define custom amiga_custom @@ -31,6 +32,7 @@ static const signed char sine_data[] = { */ volatile unsigned short amiga_audio_min_period = 124; /* Default for pre-OCS */ +EXPORT_SYMBOL(amiga_audio_min_period); #define MAX_PERIOD (65535) @@ -40,6 +42,7 @@ volatile unsigned short amiga_audio_min_period = 124; /* Default for pre-OCS */ */ unsigned short amiga_audio_period = MAX_PERIOD; +EXPORT_SYMBOL(amiga_audio_period); static unsigned long clock_constant; diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c index fa015d801617..d10726f9038b 100644 --- a/arch/m68k/amiga/chipram.c +++ b/arch/m68k/amiga/chipram.c @@ -13,10 +13,13 @@ #include <linux/ioport.h> #include <linux/slab.h> #include <linux/string.h> +#include <linux/module.h> + #include <asm/page.h> #include <asm/amigahw.h> unsigned long amiga_chip_size; +EXPORT_SYMBOL(amiga_chip_size); static struct resource chipram_res = { .name = "Chip RAM", .start = CHIP_PHYSADDR @@ -67,6 +70,7 @@ void *amiga_chip_alloc(unsigned long size, const char *name) #endif return (void *)ZTWO_VADDR(res->start); } +EXPORT_SYMBOL(amiga_chip_alloc); /* @@ -120,6 +124,7 @@ void amiga_chip_free(void *ptr) } printk("amiga_chip_free: trying to free nonexistent region at %p\n", ptr); } +EXPORT_SYMBOL(amiga_chip_free); unsigned long amiga_chip_avail(void) @@ -129,3 +134,5 @@ unsigned long amiga_chip_avail(void) #endif return chipavail; } +EXPORT_SYMBOL(amiga_chip_avail); + diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 35748531327d..50f5daab46b7 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -23,6 +23,7 @@ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/zorro.h> +#include <linux/module.h> #include <asm/bootinfo.h> #include <asm/setup.h> @@ -36,13 +37,24 @@ #include <asm/io.h> unsigned long amiga_model; +EXPORT_SYMBOL(amiga_model); + unsigned long amiga_eclock; +EXPORT_SYMBOL(amiga_eclock); + unsigned long amiga_masterclock; + unsigned long amiga_colorclock; +EXPORT_SYMBOL(amiga_colorclock); + unsigned long amiga_chipset; +EXPORT_SYMBOL(amiga_chipset); + unsigned char amiga_vblank; unsigned char amiga_psfreq; + struct amiga_hw_present amiga_hw_present; +EXPORT_SYMBOL(amiga_hw_present); static char s_a500[] __initdata = "A500"; static char s_a500p[] __initdata = "A500+"; diff --git a/arch/m68k/amiga/pcmcia.c b/arch/m68k/amiga/pcmcia.c index 186662ca1a89..7106f0c3639b 100644 --- a/arch/m68k/amiga/pcmcia.c +++ b/arch/m68k/amiga/pcmcia.c @@ -15,6 +15,8 @@ #include <linux/types.h> #include <linux/jiffies.h> #include <linux/timer.h> +#include <linux/module.h> + #include <asm/amigayle.h> #include <asm/amipcmcia.h> @@ -30,6 +32,7 @@ void pcmcia_reset(void) while (time_before(jiffies, reset_start_time + 1*HZ/100)); b = gayle_reset; } +EXPORT_SYMBOL(pcmcia_reset); /* copy a tuple, including tuple header. return nb bytes copied */ @@ -61,6 +64,7 @@ int pcmcia_copy_tuple(unsigned char tuple_id, void *tuple, int max_len) return 0; } +EXPORT_SYMBOL(pcmcia_copy_tuple); void pcmcia_program_voltage(int voltage) { @@ -84,6 +88,7 @@ void pcmcia_program_voltage(int voltage) gayle.config = cfg_byte; } +EXPORT_SYMBOL(pcmcia_program_voltage); void pcmcia_access_speed(int speed) { @@ -101,13 +106,17 @@ void pcmcia_access_speed(int speed) cfg_byte = (cfg_byte & 0xf3) | s; gayle.config = cfg_byte; } +EXPORT_SYMBOL(pcmcia_access_speed); void pcmcia_write_enable(void) { gayle.cardstatus = GAYLE_CS_WR|GAYLE_CS_DA; } +EXPORT_SYMBOL(pcmcia_write_enable); void pcmcia_write_disable(void) { gayle.cardstatus = 0; } +EXPORT_SYMBOL(pcmcia_write_disable); + diff --git a/arch/m68k/atari/Makefile b/arch/m68k/atari/Makefile index 2cb86191f0aa..2cd905efe63a 100644 --- a/arch/m68k/atari/Makefile +++ b/arch/m68k/atari/Makefile @@ -3,7 +3,7 @@ # obj-y := config.o time.o debug.o ataints.o stdma.o \ - atasound.o stram.o atari_ksyms.o + atasound.o stram.o ifeq ($(CONFIG_PCI),y) obj-$(CONFIG_HADES) += hades-pci.o diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index b85ca22024c1..b45593a60bdd 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -40,6 +40,7 @@ #include <linux/kernel_stat.h> #include <linux/init.h> #include <linux/seq_file.h> +#include <linux/module.h> #include <asm/system.h> #include <asm/traps.h> @@ -446,6 +447,7 @@ unsigned long atari_register_vme_int(void) free_vme_vec_bitmap |= 1 << i; return VME_SOURCE_BASE + i; } +EXPORT_SYMBOL(atari_register_vme_int); void atari_unregister_vme_int(unsigned long irq) @@ -455,5 +457,6 @@ void atari_unregister_vme_int(unsigned long irq) free_vme_vec_bitmap &= ~(1 << irq); } } +EXPORT_SYMBOL(atari_unregister_vme_int); diff --git a/arch/m68k/atari/atari_ksyms.c b/arch/m68k/atari/atari_ksyms.c deleted file mode 100644 index a04757151538..000000000000 --- a/arch/m68k/atari/atari_ksyms.c +++ /dev/null @@ -1,35 +0,0 @@ -#include <linux/module.h> - -#include <asm/ptrace.h> -#include <asm/traps.h> -#include <asm/atarihw.h> -#include <asm/atariints.h> -#include <asm/atarikb.h> -#include <asm/atari_joystick.h> -#include <asm/atari_stdma.h> -#include <asm/atari_stram.h> - -extern void atari_microwire_cmd( int cmd ); -extern int atari_MFP_init_done; -extern int atari_SCC_init_done; -extern int atari_SCC_reset_done; - -EXPORT_SYMBOL(atari_mch_cookie); -EXPORT_SYMBOL(atari_mch_type); -EXPORT_SYMBOL(atari_hw_present); -EXPORT_SYMBOL(atari_switches); -EXPORT_SYMBOL(atari_dont_touch_floppy_select); -EXPORT_SYMBOL(atari_register_vme_int); -EXPORT_SYMBOL(atari_unregister_vme_int); -EXPORT_SYMBOL(stdma_lock); -EXPORT_SYMBOL(stdma_release); -EXPORT_SYMBOL(stdma_others_waiting); -EXPORT_SYMBOL(stdma_islocked); -EXPORT_SYMBOL(atari_stram_alloc); -EXPORT_SYMBOL(atari_stram_free); - -EXPORT_SYMBOL(atari_MFP_init_done); -EXPORT_SYMBOL(atari_SCC_init_done); -EXPORT_SYMBOL(atari_SCC_reset_done); - -EXPORT_SYMBOL(atari_microwire_cmd); diff --git a/arch/m68k/atari/atasound.c b/arch/m68k/atari/atasound.c index ee04250eb56b..d266fe89c125 100644 --- a/arch/m68k/atari/atasound.c +++ b/arch/m68k/atari/atasound.c @@ -22,6 +22,7 @@ #include <linux/fcntl.h> #include <linux/errno.h> #include <linux/mm.h> +#include <linux/module.h> #include <asm/atarihw.h> #include <asm/system.h> @@ -43,6 +44,7 @@ void atari_microwire_cmd (int cmd) while( tt_microwire.mask != 0x7ff) ; } +EXPORT_SYMBOL(atari_microwire_cmd); /* PSG base frequency */ diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c index e40e5dcaa347..5945e1505558 100644 --- a/arch/m68k/atari/config.c +++ b/arch/m68k/atari/config.c @@ -31,6 +31,7 @@ #include <linux/delay.h> #include <linux/ioport.h> #include <linux/vt_kern.h> +#include <linux/module.h> #include <asm/bootinfo.h> #include <asm/setup.h> @@ -43,10 +44,20 @@ #include <asm/io.h> u_long atari_mch_cookie; +EXPORT_SYMBOL(atari_mch_cookie); + u_long atari_mch_type; +EXPORT_SYMBOL(atari_mch_type); + struct atari_hw_present atari_hw_present; +EXPORT_SYMBOL(atari_hw_present); + u_long atari_switches; +EXPORT_SYMBOL(atari_switches); + int atari_dont_touch_floppy_select; +EXPORT_SYMBOL(atari_dont_touch_floppy_select); + int atari_rtc_year_offset; /* local function prototypes */ diff --git a/arch/m68k/atari/debug.c b/arch/m68k/atari/debug.c index fbeed8c8ecbc..043ddbc61c7b 100644 --- a/arch/m68k/atari/debug.c +++ b/arch/m68k/atari/debug.c @@ -15,17 +15,23 @@ #include <linux/console.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/module.h> #include <asm/atarihw.h> #include <asm/atariints.h> /* Flag that Modem1 port is already initialized and used */ int atari_MFP_init_done; +EXPORT_SYMBOL(atari_MFP_init_done); + /* Flag that Modem1 port is already initialized and used */ int atari_SCC_init_done; +EXPORT_SYMBOL(atari_SCC_init_done); + /* Can be set somewhere, if a SCC master reset has already be done and should * not be repeated; used by kgdb */ int atari_SCC_reset_done; +EXPORT_SYMBOL(atari_SCC_reset_done); static struct console atari_console_driver = { .name = "debug", diff --git a/arch/m68k/atari/hades-pci.c b/arch/m68k/atari/hades-pci.c index bee2b1443e36..2bbabc008708 100644 --- a/arch/m68k/atari/hades-pci.c +++ b/arch/m68k/atari/hades-pci.c @@ -376,8 +376,8 @@ struct pci_bus_info * __init init_hades_pci(void) */ bus = kzalloc(sizeof(struct pci_bus_info), GFP_KERNEL); - if (!bus) - return NULL; + if (unlikely(!bus)) + goto iounmap_base_virt; /* * Claim resources. The m68k has no separate I/O space, both @@ -385,43 +385,25 @@ struct pci_bus_info * __init init_hades_pci(void) * the I/O resources are requested in memory space as well. */ - if (request_resource(&iomem_resource, &config_space) != 0) - { - kfree(bus); - return NULL; - } + if (unlikely(request_resource(&iomem_resource, &config_space) != 0)) + goto free_bus; - if (request_resource(&iomem_resource, &io_space) != 0) - { - release_resource(&config_space); - kfree(bus); - return NULL; - } + if (unlikely(request_resource(&iomem_resource, &io_space) != 0)) + goto release_config_space; bus->mem_space.start = HADES_MEM_BASE; bus->mem_space.end = HADES_MEM_BASE + HADES_MEM_SIZE - 1; bus->mem_space.name = pci_mem_name; #if 1 - if (request_resource(&iomem_resource, &bus->mem_space) != 0) - { - release_resource(&io_space); - release_resource(&config_space); - kfree(bus); - return NULL; - } + if (unlikely(request_resource(&iomem_resource, &bus->mem_space) != 0)) + goto release_io_space; #endif bus->io_space.start = pci_io_base_virt; bus->io_space.end = pci_io_base_virt + HADES_VIRT_IO_SIZE - 1; bus->io_space.name = pci_io_name; #if 1 - if (request_resource(&ioport_resource, &bus->io_space) != 0) - { - release_resource(&bus->mem_space); - release_resource(&io_space); - release_resource(&config_space); - kfree(bus); - return NULL; - } + if (unlikely(request_resource(&ioport_resource, &bus->io_space) != 0)) + goto release_bus_mem_space; #endif /* * Set hardware dependent functions. @@ -438,5 +420,21 @@ struct pci_bus_info * __init init_hades_pci(void) tt_mfp.active_edge &= ~0x27; return bus; + +release_bus_mem_space: + release_resource(&bus->mem_space); +release_io_space: + release_resource(&io_space); +release_config_space: + release_resource(&config_space); +free_bus: + kfree(bus); +iounmap_base_virt: + iounmap((void *)pci_io_base_virt); + + for (i = 0; i < N_SLOTS; i++) + iounmap((void *)pci_conf_base_virt[i]); + + return NULL; } #endif diff --git a/arch/m68k/atari/stdma.c b/arch/m68k/atari/stdma.c index ab3fd5202b24..d1bd029a34ac 100644 --- a/arch/m68k/atari/stdma.c +++ b/arch/m68k/atari/stdma.c @@ -35,6 +35,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/wait.h> +#include <linux/module.h> #include <asm/atari_stdma.h> #include <asm/atariints.h> @@ -91,6 +92,7 @@ void stdma_lock(irq_handler_t handler, void *data) stdma_isr_data = data; local_irq_restore(flags); } +EXPORT_SYMBOL(stdma_lock); /* @@ -117,6 +119,7 @@ void stdma_release(void) local_irq_restore(flags); } +EXPORT_SYMBOL(stdma_release); /* @@ -134,6 +137,7 @@ int stdma_others_waiting(void) { return waitqueue_active(&stdma_wait); } +EXPORT_SYMBOL(stdma_others_waiting); /* @@ -155,6 +159,7 @@ int stdma_islocked(void) { return stdma_locked; } +EXPORT_SYMBOL(stdma_islocked); /* diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c index bf4588cbe371..8dda6515887a 100644 --- a/arch/m68k/atari/stram.c +++ b/arch/m68k/atari/stram.c @@ -20,6 +20,7 @@ #include <linux/bootmem.h> #include <linux/mount.h> #include <linux/blkdev.h> +#include <linux/module.h> #include <asm/setup.h> #include <asm/machdep.h> @@ -208,6 +209,7 @@ void *atari_stram_alloc(long size, const char *owner) } return( addr ); } +EXPORT_SYMBOL(atari_stram_alloc); void atari_stram_free( void *addr ) @@ -237,6 +239,7 @@ void atari_stram_free( void *addr ) printk( KERN_ERR "atari_stram_free: cannot free block at %p " "(called from %p)\n", addr, __builtin_return_address(0) ); } +EXPORT_SYMBOL(atari_stram_free); /* ------------------------------------------------------------------------ */ diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index 15b80abfe94a..ff9dffa5b860 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -678,7 +678,6 @@ CONFIG_LOGO_MAC_CLUT224=y # CONFIG_MAC_SCC=y CONFIG_MAC_HID=y -CONFIG_MAC_ADBKEYCODES=y CONFIG_SERIAL_CONSOLE=y # diff --git a/arch/m68k/hp300/Makefile b/arch/m68k/hp300/Makefile index 288b9c67c9bf..96d4244c82fd 100644 --- a/arch/m68k/hp300/Makefile +++ b/arch/m68k/hp300/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/hp300 source directory # -obj-y := ksyms.o config.o time.o reboot.o +obj-y := config.o time.o reboot.o diff --git a/arch/m68k/hp300/ksyms.c b/arch/m68k/hp300/ksyms.c deleted file mode 100644 index 8202830763d1..000000000000 --- a/arch/m68k/hp300/ksyms.c +++ /dev/null @@ -1,9 +0,0 @@ -/* - * linux/arch/m68k/hp300/ksyms.c - * - * Copyright (C) 1998 Philip Blundell <philb@gnu.org> - * - * This file contains the HP300-specific kernel symbols. None yet. :-) - */ - -#include <linux/module.h> diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 918f5dbeaef6..6dfa3b3c0e2a 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -742,7 +742,7 @@ sys_call_table: .long sys_epoll_pwait /* 315 */ .long sys_utimensat .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate /* 320 */ diff --git a/arch/m68k/mac/Makefile b/arch/m68k/mac/Makefile index 995a09d912f5..1d265ba365ad 100644 --- a/arch/m68k/mac/Makefile +++ b/arch/m68k/mac/Makefile @@ -3,4 +3,4 @@ # obj-y := config.o bootparse.o macints.o iop.o via.o oss.o psc.o \ - baboon.o macboing.o debug.o misc.o mac_ksyms.o + baboon.o macboing.o debug.o misc.o diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 01b468b9392e..735a49b4b936 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -58,8 +58,6 @@ extern struct mem_info m68k_memory[NUM_MEMINFO]; extern struct mem_info m68k_ramdisk; -extern char m68k_command_line[CL_SIZE]; - void *mac_env; /* Loaded by the boot asm */ /* The phys. video addr. - might be bogus on some machines */ diff --git a/arch/m68k/mac/mac_ksyms.c b/arch/m68k/mac/mac_ksyms.c deleted file mode 100644 index 6e37ceb0f3b5..000000000000 --- a/arch/m68k/mac/mac_ksyms.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <linux/module.h> -#include <asm/ptrace.h> -#include <asm/traps.h> - -/* Says whether we're using A/UX interrupts or not */ -extern int via_alt_mapping; - -EXPORT_SYMBOL(via_alt_mapping); diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index 8df270e950fa..fa485df4160e 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -28,6 +28,7 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/ide.h> +#include <linux/module.h> #include <asm/bootinfo.h> #include <asm/macintosh.h> @@ -41,7 +42,9 @@ volatile __u8 *via1, *via2; /* See note in mac_via.h about how this is possibly not useful */ volatile long *via_memory_bogon=(long *)&via_memory_bogon; #endif -int rbv_present, via_alt_mapping; +int rbv_present; +int via_alt_mapping; +EXPORT_SYMBOL(via_alt_mapping); __u8 rbv_clear; /* diff --git a/arch/m68k/mvme16x/Makefile b/arch/m68k/mvme16x/Makefile index 950e82f21640..edb3f6e6ee6a 100644 --- a/arch/m68k/mvme16x/Makefile +++ b/arch/m68k/mvme16x/Makefile @@ -2,4 +2,4 @@ # Makefile for Linux arch/m68k/mvme16x source directory # -obj-y := config.o rtc.o mvme16x_ksyms.o +obj-y := config.o rtc.o diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c index daa785161401..24cbc3030454 100644 --- a/arch/m68k/mvme16x/config.c +++ b/arch/m68k/mvme16x/config.c @@ -25,6 +25,7 @@ #include <linux/genhd.h> #include <linux/rtc.h> #include <linux/interrupt.h> +#include <linux/module.h> #include <asm/bootinfo.h> #include <asm/system.h> @@ -58,6 +59,7 @@ static irq_handler_t tick_handler; unsigned short mvme16x_config; +EXPORT_SYMBOL(mvme16x_config); int mvme16x_parse_bootinfo(const struct bi_record *bi) diff --git a/arch/m68k/mvme16x/mvme16x_ksyms.c b/arch/m68k/mvme16x/mvme16x_ksyms.c deleted file mode 100644 index 4a8a3634bb47..000000000000 --- a/arch/m68k/mvme16x/mvme16x_ksyms.c +++ /dev/null @@ -1,6 +0,0 @@ -#include <linux/module.h> -#include <linux/types.h> -#include <asm/ptrace.h> -#include <asm/mvme16xhw.h> - -EXPORT_SYMBOL(mvme16x_config); diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig index f4b582cbb567..6abbbb8aac5e 100644 --- a/arch/m68knommu/Kconfig +++ b/arch/m68knommu/Kconfig @@ -53,6 +53,10 @@ config GENERIC_CALIBRATE_DELAY bool default y +config GENERIC_TIME + bool + default y + config TIME_LOW_RES bool default y @@ -707,8 +711,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/m68knommu/Kconfig.debug" source "security/Kconfig" diff --git a/arch/m68knommu/Kconfig.debug b/arch/m68knommu/Kconfig.debug index 9ff47bd09aee..ed6d9a83bfdb 100644 --- a/arch/m68knommu/Kconfig.debug +++ b/arch/m68knommu/Kconfig.debug @@ -21,13 +21,6 @@ config BOOTPARAM_STRING default 'console=ttyS0,19200' depends on BOOTPARAM -config DUMPTOFLASH - bool "Panic/Dump to FLASH" - depends on COLDFIRE - help - Dump any panic of trap output into a flash memory segment - for later analysis. - config NO_KERNEL_MSG bool "Suppress Kernel BUG Messages" help diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile index 30aa2553693d..e0b5f62e395c 100644 --- a/arch/m68knommu/Makefile +++ b/arch/m68knommu/Makefile @@ -61,17 +61,17 @@ MODEL := $(model-y) # for the selected cpu. ONLY need to define this for the non-base member # of the family. # -cpuclass-$(CONFIG_M5206) := 5307 -cpuclass-$(CONFIG_M5206e) := 5307 -cpuclass-$(CONFIG_M520x) := 5307 -cpuclass-$(CONFIG_M523x) := 5307 -cpuclass-$(CONFIG_M5249) := 5307 -cpuclass-$(CONFIG_M527x) := 5307 -cpuclass-$(CONFIG_M5272) := 5307 -cpuclass-$(CONFIG_M528x) := 5307 -cpuclass-$(CONFIG_M5307) := 5307 -cpuclass-$(CONFIG_M532x) := 5307 -cpuclass-$(CONFIG_M5407) := 5307 +cpuclass-$(CONFIG_M5206) := coldfire +cpuclass-$(CONFIG_M5206e) := coldfire +cpuclass-$(CONFIG_M520x) := coldfire +cpuclass-$(CONFIG_M523x) := coldfire +cpuclass-$(CONFIG_M5249) := coldfire +cpuclass-$(CONFIG_M527x) := coldfire +cpuclass-$(CONFIG_M5272) := coldfire +cpuclass-$(CONFIG_M528x) := coldfire +cpuclass-$(CONFIG_M5307) := coldfire +cpuclass-$(CONFIG_M532x) := coldfire +cpuclass-$(CONFIG_M5407) := coldfire cpuclass-$(CONFIG_M68328) := 68328 cpuclass-$(CONFIG_M68EZ328) := 68328 cpuclass-$(CONFIG_M68VZ328) := 68328 diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig index 5a0ecaaee3b0..648113075f97 100644 --- a/arch/m68knommu/defconfig +++ b/arch/m68knommu/defconfig @@ -597,7 +597,6 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_FULLDEBUG is not set # CONFIG_HIGHPROFILE is not set # CONFIG_BOOTPARAM is not set -# CONFIG_DUMPTOFLASH is not set # CONFIG_NO_KERNEL_MSG is not set # CONFIG_BDM_DISABLE is not set diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c index f795062aba1e..53fad1490282 100644 --- a/arch/m68knommu/kernel/m68k_ksyms.c +++ b/arch/m68knommu/kernel/m68k_ksyms.c @@ -24,14 +24,6 @@ extern int dump_fpu(struct pt_regs *, elf_fpregset_t *); EXPORT_SYMBOL(__ioremap); EXPORT_SYMBOL(iounmap); EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(strnlen); -EXPORT_SYMBOL(strrchr); -EXPORT_SYMBOL(strstr); -EXPORT_SYMBOL(strchr); -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strcmp); -EXPORT_SYMBOL(strncmp); EXPORT_SYMBOL(ip_fast_csum); @@ -46,9 +38,6 @@ EXPORT_SYMBOL(csum_partial_copy_nocheck); it's OK to leave it out of version control. */ EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memcmp); -EXPORT_SYMBOL(memscan); -EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(__down_failed); EXPORT_SYMBOL(__down_failed_interruptible); diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c index 332345d7675d..81507c53d4a9 100644 --- a/arch/m68knommu/kernel/setup.c +++ b/arch/m68knommu/kernel/setup.c @@ -64,9 +64,6 @@ void (*mach_power_off)(void); #ifdef CONFIG_M68VZ328 #define CPU "MC68VZ328" #endif -#ifdef CONFIG_M68332 - #define CPU "MC68332" -#endif #ifdef CONFIG_M68360 #define CPU "MC68360" #endif diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index 9620093514bc..1b02b8820068 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -336,7 +336,7 @@ ENTRY(sys_call_table) .long sys_epoll_pwait /* 315 */ .long sys_utimensat .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate /* 320 */ diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c index 77e5375a2dd5..89cdbcaeb45f 100644 --- a/arch/m68knommu/kernel/time.c +++ b/arch/m68knommu/kernel/time.c @@ -22,7 +22,6 @@ #include <linux/timex.h> #include <asm/machdep.h> -#include <asm/io.h> #include <asm/irq_regs.h> #define TICK_SIZE (tick_nsec / 1000) @@ -66,29 +65,6 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy) else last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ } -#ifdef CONFIG_HEARTBEAT - /* use power LED as a heartbeat instead -- much more useful - for debugging -- based on the version for PReP by Cort */ - /* acts like an actual heart beat -- ie thump-thump-pause... */ - if (mach_heartbeat) { - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_heartbeat( 1 ); - else if (cnt == 7 || cnt == dist+7) - mach_heartbeat( 0 ); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; - dist = period / 4; - } - } -#endif /* CONFIG_HEARTBEAT */ write_sequnlock(&xtime_lock); return(IRQ_HANDLED); @@ -112,60 +88,3 @@ void time_init(void) hw_timer_init(); } -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday(struct timeval *tv) -{ - unsigned long flags; - unsigned long seq; - unsigned long usec, sec; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - usec = hw_timer_offset(); - sec = xtime.tv_sec; - usec += (xtime.tv_nsec / 1000); - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - /* - * This is revolting. We need to set the xtime.tv_usec - * correctly. However, the value in this location is - * is value at the last tick. - * Discover what correction gettimeofday - * would have done, and then undo it! - */ - nsec -= (hw_timer_offset() * 1000); - - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} -EXPORT_SYMBOL(do_settimeofday); diff --git a/arch/m68knommu/platform/5206/config.c b/arch/m68knommu/platform/5206/config.c index b3c4dd4cc135..53a5920c2b71 100644 --- a/arch/m68knommu/platform/5206/config.c +++ b/arch/m68knommu/platform/5206/config.c @@ -13,12 +13,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> -#include <asm/mcftimer.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -26,15 +25,51 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, - MCF_MBAR + MCFDMA_BASE1, +static struct mcf_platform_uart m5206_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5206_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5206_uart_platform, +}; + +static struct platform_device *m5206_devices[] __initdata = { + &m5206_uart, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +/***************************************************************************/ + +static void __init m5206_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2); + } +} + +static void __init m5206_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5206_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5206_uart_init_line(line, m5206_uart_platform[line].irq); +} /***************************************************************************/ @@ -74,24 +109,21 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) +void __init config_BSP(char *commandp, int size) { - unsigned int imr = 0; - - switch (timer) { - case 1: imr = MCFSIM_IMR_TIMER1; break; - case 2: imr = MCFSIM_IMR_TIMER2; break; - default: break; - } - return (mcf_getipr() & imr); + mcf_setimr(MCFSIM_IMR_MASKALL); + mach_reset = coldfire_reset; } /***************************************************************************/ -void config_BSP(char *commandp, int size) +static int __init init_BSP(void) { - mcf_setimr(MCFSIM_IMR_MASKALL); - mach_reset = coldfire_reset; + m5206_uarts_init(); + platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices)); + return 0; } +arch_initcall(init_BSP); + /***************************************************************************/ diff --git a/arch/m68knommu/platform/5206e/config.c b/arch/m68knommu/platform/5206e/config.c index f84a4aea8cb6..a6692e958f6b 100644 --- a/arch/m68knommu/platform/5206e/config.c +++ b/arch/m68knommu/platform/5206e/config.c @@ -10,8 +10,9 @@ #include <linux/kernel.h> #include <linux/param.h> +#include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> @@ -23,15 +24,51 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, - MCF_MBAR + MCFDMA_BASE1, +static struct mcf_platform_uart m5206e_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5206e_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5206e_uart_platform, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device *m5206e_devices[] __initdata = { + &m5206e_uart, +}; + +/***************************************************************************/ + +static void __init m5206_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2); + } +} + +static void __init m5206e_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5206e_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5206e_uart_init_line(line, m5206e_uart_platform[line].irq); +} /***************************************************************************/ @@ -71,21 +108,7 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) -{ - unsigned int imr = 0; - - switch (timer) { - case 1: imr = MCFSIM_IMR_TIMER1; break; - case 2: imr = MCFSIM_IMR_TIMER2; break; - default: break; - } - return (mcf_getipr() & imr); -} - -/***************************************************************************/ - -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_setimr(MCFSIM_IMR_MASKALL); @@ -99,3 +122,14 @@ void config_BSP(char *commandp, int size) } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m5206e_uarts_init(); + platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/520x/config.c b/arch/m68knommu/platform/520x/config.c index 6edbd41261cc..06d887cdcbfb 100644 --- a/arch/m68knommu/platform/520x/config.c +++ b/arch/m68knommu/platform/520x/config.c @@ -5,7 +5,7 @@ * * Copyright (C) 2005, Freescale (www.freescale.com) * Copyright (C) 2005, Intec Automation (mike@steroidmicros.com) - * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) */ @@ -13,21 +13,93 @@ #include <linux/kernel.h> #include <linux/param.h> +#include <linux/init.h> #include <linux/interrupt.h> +#include <linux/io.h> #include <asm/machdep.h> -#include <asm/dma.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS]; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +void coldfire_reset(void); /***************************************************************************/ -void coldfire_reset(void); +static struct mcf_platform_uart m520x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, +}; + +static struct platform_device m520x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m520x_uart_platform, +}; + +static struct platform_device *m520x_devices[] __initdata = { + &m520x_uart, +}; + +/***************************************************************************/ + +#define INTC0 (MCF_MBAR + MCFICM_INTC0) + +static void __init m520x_uart_init_line(int line, int irq) +{ + u32 imr; + u16 par; + u8 par2; + + writeb(0x03, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line); + + imr = readl(INTC0 + MCFINTC_IMRL); + imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); + writel(imr, INTC0 + MCFINTC_IMRL); + + switch (line) { + case 0: + par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + par |= MCF_GPIO_PAR_UART_PAR_UTXD0 | + MCF_GPIO_PAR_UART_PAR_URXD0; + writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART); + break; + case 1: + par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + par |= MCF_GPIO_PAR_UART_PAR_UTXD1 | + MCF_GPIO_PAR_UART_PAR_URXD1; + writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART); + break; + case 2: + par2 = readb(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C); + par2 &= ~0x0F; + par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 | + MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2; + writeb(par2, MCF_IPSBAR + MCF_GPIO_PAR_FECI2C); + break; + } +} + +static void __init m520x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m520x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m520x_uart_init_line(line, m520x_uart_platform[line].irq); +} /***************************************************************************/ @@ -42,9 +114,20 @@ void mcf_autovector(unsigned int vec) /***************************************************************************/ -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mach_reset = coldfire_reset; + m520x_uarts_init(); } /***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c index e7f80c8e8636..13f02611ea23 100644 --- a/arch/m68knommu/platform/523x/config.c +++ b/arch/m68knommu/platform/523x/config.c @@ -16,11 +16,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -28,14 +28,58 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, +static struct mcf_platform_uart m523x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, + }, + { }, +}; + +static struct platform_device m523x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m523x_uart_platform, +}; + +static struct platform_device *m523x_devices[] __initdata = { + &m523x_uart, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +/***************************************************************************/ + +#define INTC0 (MCF_MBAR + MCFICM_INTC0) + +static void __init m523x_uart_init_line(int line, int irq) +{ + u32 imr; + + if ((line < 0) || (line > 2)) + return; + + writeb(0x30+line, (INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line)); + + imr = readl(INTC0 + MCFINTC_IMRL); + imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); + writel(imr, INTC0 + MCFINTC_IMRL); +} + +static void __init m523x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m523x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m523x_uart_init_line(line, m523x_uart_platform[line].irq); +} /***************************************************************************/ @@ -49,15 +93,26 @@ void mcf_disableall(void) void mcf_autovector(unsigned int vec) { - /* Everything is auto-vectored on the 5272 */ + /* Everything is auto-vectored on the 523x */ } /***************************************************************************/ -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_disableall(); mach_reset = coldfire_reset; + m523x_uarts_init(); } /***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/5249/config.c b/arch/m68knommu/platform/5249/config.c index d4d39435cb15..d299f7b8768a 100644 --- a/arch/m68knommu/platform/5249/config.c +++ b/arch/m68knommu/platform/5249/config.c @@ -12,11 +12,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -24,17 +24,51 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, - MCF_MBAR + MCFDMA_BASE1, - MCF_MBAR + MCFDMA_BASE2, - MCF_MBAR + MCFDMA_BASE3, +static struct mcf_platform_uart m5249_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + } +}; + +static struct platform_device m5249_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5249_uart_platform, +}; + +static struct platform_device *m5249_devices[] __initdata = { + &m5249_uart, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +/***************************************************************************/ + +static void __init m5249_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2); + } +} + +static void __init m5249_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5249_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5249_uart_init_line(line, m5249_uart_platform[line].irq); +} + /***************************************************************************/ @@ -71,24 +105,21 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) +void __init config_BSP(char *commandp, int size) { - unsigned int imr = 0; - - switch (timer) { - case 1: imr = MCFSIM_IMR_TIMER1; break; - case 2: imr = MCFSIM_IMR_TIMER2; break; - default: break; - } - return (mcf_getipr() & imr); + mcf_setimr(MCFSIM_IMR_MASKALL); + mach_reset = coldfire_reset; } /***************************************************************************/ -void config_BSP(char *commandp, int size) +static int __init init_BSP(void) { - mcf_setimr(MCFSIM_IMR_MASKALL); - mach_reset = coldfire_reset; + m5249_uarts_init(); + platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices)); + return 0; } +arch_initcall(init_BSP); + /***************************************************************************/ diff --git a/arch/m68knommu/platform/5272/config.c b/arch/m68knommu/platform/5272/config.c index 634a6375e4a5..2aca599a1ca7 100644 --- a/arch/m68knommu/platform/5272/config.c +++ b/arch/m68knommu/platform/5272/config.c @@ -13,11 +13,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -37,14 +37,57 @@ unsigned char ledbank = 0xff; /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, +static struct mcf_platform_uart m5272_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device m5272_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5272_uart_platform, +}; + +static struct platform_device *m5272_devices[] __initdata = { + &m5272_uart, +}; + +/***************************************************************************/ + +static void __init m5272_uart_init_line(int line, int irq) +{ + u32 v; + + if ((line >= 0) && (line < 2)) { + v = (line) ? 0x0e000000 : 0xe0000000; + writel(v, MCF_MBAR + MCFSIM_ICR2); + + /* Enable the output lines for the serial ports */ + v = readl(MCF_MBAR + MCFSIM_PBCNT); + v = (v & ~0x000000ff) | 0x00000055; + writel(v, MCF_MBAR + MCFSIM_PBCNT); + + v = readl(MCF_MBAR + MCFSIM_PDCNT); + v = (v & ~0x000003fc) | 0x000002a8; + writel(v, MCF_MBAR + MCFSIM_PDCNT); + } +} + +static void __init m5272_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5272_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5272_uart_init_line(line, m5272_uart_platform[line].irq); +} /***************************************************************************/ @@ -80,20 +123,7 @@ void mcf_settimericr(int timer, int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) -{ - volatile unsigned long *icrp; - - if ((timer >= 1 ) && (timer <= 4)) { - icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1); - return (*icrp & (0x8 << ((4 - timer) * 4))); - } - return 0; -} - -/***************************************************************************/ - -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { #if defined (CONFIG_MOD5272) volatile unsigned char *pivrp; @@ -125,3 +155,14 @@ void config_BSP(char *commandp, int size) } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m5272_uarts_init(); + platform_add_devices(m5272_devices, ARRAY_SIZE(m5272_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/527x/config.c b/arch/m68knommu/platform/527x/config.c index 9cbfbc68ae4f..73cd1aef4a90 100644 --- a/arch/m68knommu/platform/527x/config.c +++ b/arch/m68knommu/platform/527x/config.c @@ -16,11 +16,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -28,14 +28,72 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, +static struct mcf_platform_uart m527x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device m527x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m527x_uart_platform, +}; + +static struct platform_device *m527x_devices[] __initdata = { + &m527x_uart, +}; + +/***************************************************************************/ + +#define INTC0 (MCF_MBAR + MCFICM_INTC0) + +static void __init m527x_uart_init_line(int line, int irq) +{ + u16 sepmask; + u32 imr; + + if ((line < 0) || (line > 2)) + return; + + /* level 6, line based priority */ + writeb(0x30+line, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line); + + imr = readl(INTC0 + MCFINTC_IMRL); + imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); + writel(imr, INTC0 + MCFINTC_IMRL); + + /* + * External Pin Mask Setting & Enable External Pin for Interface + */ + sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + if (line == 0) + sepmask |= UART0_ENABLE_MASK; + else if (line == 1) + sepmask |= UART1_ENABLE_MASK; + else if (line == 2) + sepmask |= UART2_ENABLE_MASK; + writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); +} + +static void __init m527x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m527x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m527x_uart_init_line(line, m527x_uart_platform[line].irq); +} /***************************************************************************/ @@ -54,10 +112,21 @@ void mcf_autovector(unsigned int vec) /***************************************************************************/ -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_disableall(); mach_reset = coldfire_reset; } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m527x_uarts_init(); + platform_add_devices(m527x_devices, ARRAY_SIZE(m527x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68knommu/platform/528x/config.c index acbd43486d97..036e1b73d944 100644 --- a/arch/m68knommu/platform/528x/config.c +++ b/arch/m68knommu/platform/528x/config.c @@ -16,11 +16,15 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> /***************************************************************************/ @@ -28,14 +32,67 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, +static struct mcf_platform_uart m528x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, + }, + { }, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device m528x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m528x_uart_platform, +}; + +static struct platform_device *m528x_devices[] __initdata = { + &m528x_uart, +}; + +/***************************************************************************/ + +#define INTC0 (MCF_MBAR + MCFICM_INTC0) + +static void __init m528x_uart_init_line(int line, int irq) +{ + u8 port; + u32 imr; + + if ((line < 0) || (line > 2)) + return; + + /* level 6, line based priority */ + writeb(0x30+line, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line); + + imr = readl(INTC0 + MCFINTC_IMRL); + imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); + writel(imr, INTC0 + MCFINTC_IMRL); + + /* make sure PUAPAR is set for UART0 and UART1 */ + if (line < 2) { + port = readb(MCF_MBAR + MCF5282_GPIO_PUAPAR); + port |= (0x03 << (line * 2)); + writeb(port, MCF_MBAR + MCF5282_GPIO_PUAPAR); + } +} + +static void __init m528x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m528x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m528x_uart_init_line(line, m528x_uart_platform[line].irq); +} /***************************************************************************/ @@ -54,10 +111,21 @@ void mcf_autovector(unsigned int vec) /***************************************************************************/ -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_disableall(); mach_reset = coldfire_reset; } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m528x_uarts_init(); + platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/5307/Makefile b/arch/m68knommu/platform/5307/Makefile index 5b600530c8d2..580fd6658d7c 100644 --- a/arch/m68knommu/platform/5307/Makefile +++ b/arch/m68knommu/platform/5307/Makefile @@ -16,17 +16,5 @@ ifdef CONFIG_FULLDEBUG EXTRA_AFLAGS += -DDEBUGGER_COMPATIBLE_CACHE=1 endif -obj-$(CONFIG_COLDFIRE) += entry.o vectors.o -obj-$(CONFIG_M5206) += timers.o -obj-$(CONFIG_M5206e) += timers.o -obj-$(CONFIG_M520x) += pit.o -obj-$(CONFIG_M523x) += pit.o -obj-$(CONFIG_M5249) += timers.o -obj-$(CONFIG_M527x) += pit.o -obj-$(CONFIG_M5272) += timers.o -obj-$(CONFIG_M5307) += config.o timers.o -obj-$(CONFIG_M532x) += timers.o -obj-$(CONFIG_M528x) += pit.o -obj-$(CONFIG_M5407) += timers.o +obj-y += config.o -extra-y := head.o diff --git a/arch/m68knommu/platform/5307/config.c b/arch/m68knommu/platform/5307/config.c index 6040821e637d..92dc862fa826 100644 --- a/arch/m68knommu/platform/5307/config.c +++ b/arch/m68knommu/platform/5307/config.c @@ -13,11 +13,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> #include <asm/mcfwdebug.h> /***************************************************************************/ @@ -38,17 +38,51 @@ unsigned char ledbank = 0xff; /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, - MCF_MBAR + MCFDMA_BASE1, - MCF_MBAR + MCFDMA_BASE2, - MCF_MBAR + MCFDMA_BASE3, +static struct mcf_platform_uart m5307_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5307_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5307_uart_platform, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device *m5307_devices[] __initdata = { + &m5307_uart, +}; + +/***************************************************************************/ + +static void __init m5307_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2); + } +} + +static void __init m5307_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5307_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5307_uart_init_line(line, m5307_uart_platform[line].irq); +} /***************************************************************************/ @@ -85,21 +119,7 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) -{ - unsigned int imr = 0; - - switch (timer) { - case 1: imr = MCFSIM_IMR_TIMER1; break; - case 2: imr = MCFSIM_IMR_TIMER2; break; - default: break; - } - return (mcf_getipr() & imr); -} - -/***************************************************************************/ - -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_setimr(MCFSIM_IMR_MASKALL); @@ -117,7 +137,7 @@ void config_BSP(char *commandp, int size) mach_reset = coldfire_reset; -#ifdef MCF_BDM_DISABLE +#ifdef CONFIG_BDM_DISABLE /* * Disable the BDM clocking. This also turns off most of the rest of * the BDM device. This is good for EMC reasons. This option is not @@ -128,3 +148,14 @@ void config_BSP(char *commandp, int size) } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m5307_uarts_init(); + platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/532x/config.c b/arch/m68knommu/platform/532x/config.c index f77328b7b6db..4f44b632045b 100644 --- a/arch/m68knommu/platform/532x/config.c +++ b/arch/m68knommu/platform/532x/config.c @@ -21,10 +21,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> +#include <asm/mcfuart.h> #include <asm/mcfdma.h> #include <asm/mcfwdebug.h> @@ -38,11 +39,60 @@ extern unsigned int mcf_timerlevel; /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct mcf_platform_uart m532x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, +}; + +static struct platform_device m532x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m532x_uart_platform, +}; + +static struct platform_device *m532x_devices[] __initdata = { + &m532x_uart, +}; + +/***************************************************************************/ + +static void __init m532x_uart_init_line(int line, int irq) +{ + if (line == 0) { + MCF_INTC0_ICR26 = 0x3; + MCF_INTC0_CIMR = 26; + /* GPIO initialization */ + MCF_GPIO_PAR_UART |= 0x000F; + } else if (line == 1) { + MCF_INTC0_ICR27 = 0x3; + MCF_INTC0_CIMR = 27; + /* GPIO initialization */ + MCF_GPIO_PAR_UART |= 0x0FF0; + } else if (line == 2) { + MCF_INTC0_ICR28 = 0x3; + MCF_INTC0_CIMR = 28; + } +} + +static void __init m532x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m532x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m532x_uart_init_line(line, m532x_uart_platform[line].irq); +} /***************************************************************************/ @@ -66,21 +116,7 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) -{ - unsigned int imr = 0; - - switch (timer) { - case 1: imr = 0x1; break; - case 2: imr = 0x2; break; - default: break; - } - return (mcf_getiprh() & imr); -} - -/***************************************************************************/ - -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_setimr(MCFSIM_IMR_MASKALL); @@ -99,7 +135,7 @@ void config_BSP(char *commandp, int size) mcf_profilevector = 64+33; mach_reset = coldfire_reset; -#ifdef MCF_BDM_DISABLE +#ifdef CONFIG_BDM_DISABLE /* * Disable the BDM clocking. This also turns off most of the rest of * the BDM device. This is good for EMC reasons. This option is not @@ -110,9 +146,19 @@ void config_BSP(char *commandp, int size) } /***************************************************************************/ -/* Board initialization */ -/********************************************************************/ +static int __init init_BSP(void) +{ + m532x_uarts_init(); + platform_add_devices(m532x_devices, ARRAY_SIZE(m532x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ +/* Board initialization */ +/***************************************************************************/ /* * PLL min/max specifications */ diff --git a/arch/m68knommu/platform/5407/config.c b/arch/m68knommu/platform/5407/config.c index 2d3b62eba7ca..648b8b778211 100644 --- a/arch/m68knommu/platform/5407/config.c +++ b/arch/m68knommu/platform/5407/config.c @@ -13,11 +13,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -29,17 +29,51 @@ extern unsigned int mcf_timerlevel; /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, - MCF_MBAR + MCFDMA_BASE1, - MCF_MBAR + MCFDMA_BASE2, - MCF_MBAR + MCFDMA_BASE3, +static struct mcf_platform_uart m5407_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5407_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5407_uart_platform, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device *m5407_devices[] __initdata = { + &m5407_uart, +}; + +/***************************************************************************/ + +static void __init m5407_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2); + } +} + +static void __init m5407_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5407_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5407_uart_init_line(line, m5407_uart_platform[line].irq); +} /***************************************************************************/ @@ -76,21 +110,7 @@ void mcf_settimericr(unsigned int timer, unsigned int level) /***************************************************************************/ -int mcf_timerirqpending(int timer) -{ - unsigned int imr = 0; - - switch (timer) { - case 1: imr = MCFSIM_IMR_TIMER1; break; - case 2: imr = MCFSIM_IMR_TIMER2; break; - default: break; - } - return (mcf_getipr() & imr); -} - -/***************************************************************************/ - -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_setimr(MCFSIM_IMR_MASKALL); @@ -105,3 +125,14 @@ void config_BSP(char *commandp, int size) } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m5407_uarts_init(); + platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68knommu/platform/68328/timers.c index 04cbc661d4bd..9159fd05c9ac 100644 --- a/arch/m68knommu/platform/68328/timers.c +++ b/arch/m68knommu/platform/68328/timers.c @@ -19,6 +19,7 @@ #include <linux/mm.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/clocksource.h> #include <asm/setup.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -51,6 +52,19 @@ #define TICKS_PER_JIFFY 10 #endif +static u32 m68328_tick_cnt; + +/***************************************************************************/ + +static irqreturn_t hw_tick(int irq, void *dummy) +{ + /* Reset Timer1 */ + TSTAT &= 0; + + m68328_tick_cnt += TICKS_PER_JIFFY; + return arch_timer_interrupt(irq, dummy); +} + /***************************************************************************/ static irqreturn_t hw_tick(int irq, void *dummy) @@ -69,6 +83,33 @@ static struct irqaction m68328_timer_irq = { .handler = hw_tick, }; +/***************************************************************************/ + +static cycle_t m68328_read_clk(void) +{ + unsigned long flags; + u32 cycles; + + local_irq_save(flags); + cycles = m68328_tick_cnt + TCN; + local_irq_restore(flags); + + return cycles; +} + +/***************************************************************************/ + +static struct clocksource m68328_clk = { + .name = "timer", + .rating = 250, + .read = m68328_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +/***************************************************************************/ + void hw_timer_init(void) { /* disable timer 1 */ @@ -84,19 +125,8 @@ void hw_timer_init(void) /* Enable timer 1 */ TCTL |= TCTL_TEN; -} - -/***************************************************************************/ - -unsigned long hw_timer_offset(void) -{ - unsigned long ticks = TCN, offset = 0; - - /* check for pending interrupt */ - if (ticks < (TICKS_PER_JIFFY >> 1) && (ISR & (1 << TMR_IRQ_NUM))) - offset = 1000000 / HZ; - ticks = (ticks * 1000000 / HZ) / TICKS_PER_JIFFY; - return ticks + offset; + m68328_clk.mult = clocksource_hz2mult(TICKS_PER_JIFFY*HZ, m68328_clk.shift); + clocksource_register(&m68328_clk); } /***************************************************************************/ diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68knommu/platform/68360/config.c index 2b3196af811f..ac629fa30099 100644 --- a/arch/m68knommu/platform/68360/config.c +++ b/arch/m68knommu/platform/68360/config.c @@ -103,11 +103,6 @@ void hw_timer_init(void) pquicc->timer_tgcr = tgcr_save; } -unsigned long hw_timer_offset(void) -{ - return 0; -} - void BSP_gettod (int *yearp, int *monp, int *dayp, int *hourp, int *minp, int *secp) { diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68knommu/platform/coldfire/Makefile new file mode 100644 index 000000000000..e5fff297ae01 --- /dev/null +++ b/arch/m68knommu/platform/coldfire/Makefile @@ -0,0 +1,32 @@ +# +# Makefile for the m68knommu kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# EXTRA_CFLAGS += -DTRAP_DBG_INTERRUPT +# EXTRA_AFLAGS += -DTRAP_DBG_INTERRUPT +# + +ifdef CONFIG_FULLDEBUG +AFLAGS += -DDEBUGGER_COMPATIBLE_CACHE=1 +endif + +obj-$(CONFIG_COLDFIRE) += dma.o entry.o vectors.o +obj-$(CONFIG_M5206) += timers.o +obj-$(CONFIG_M5206e) += timers.o +obj-$(CONFIG_M520x) += pit.o +obj-$(CONFIG_M523x) += pit.o +obj-$(CONFIG_M5249) += timers.o +obj-$(CONFIG_M527x) += pit.o +obj-$(CONFIG_M5272) += timers.o +obj-$(CONFIG_M528x) += pit.o +obj-$(CONFIG_M5307) += timers.o +obj-$(CONFIG_M532x) += timers.o +obj-$(CONFIG_M5407) += timers.o + +extra-y := head.o diff --git a/arch/m68knommu/platform/coldfire/dma.c b/arch/m68knommu/platform/coldfire/dma.c new file mode 100644 index 000000000000..2b30cf1b8f77 --- /dev/null +++ b/arch/m68knommu/platform/coldfire/dma.c @@ -0,0 +1,39 @@ +/***************************************************************************/ + +/* + * dma.c -- Freescale ColdFire DMA support + * + * Copyright (C) 2007, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <asm/dma.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfdma.h> + +/***************************************************************************/ + +/* + * DMA channel base address table. + */ +unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { +#ifdef MCFDMA_BASE0 + MCF_MBAR + MCFDMA_BASE0, +#endif +#ifdef MCFDMA_BASE1 + MCF_MBAR + MCFDMA_BASE1, +#endif +#ifdef MCFDMA_BASE2 + MCF_MBAR + MCFDMA_BASE2, +#endif +#ifdef MCFDMA_BASE3 + MCF_MBAR + MCFDMA_BASE3, +#endif +}; + +unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; + +/***************************************************************************/ diff --git a/arch/m68knommu/platform/5307/entry.S b/arch/m68knommu/platform/coldfire/entry.S index b333731b875a..b333731b875a 100644 --- a/arch/m68knommu/platform/5307/entry.S +++ b/arch/m68knommu/platform/coldfire/entry.S diff --git a/arch/m68knommu/platform/5307/head.S b/arch/m68knommu/platform/coldfire/head.S index b9aa0ca29bfb..b9aa0ca29bfb 100644 --- a/arch/m68knommu/platform/5307/head.S +++ b/arch/m68knommu/platform/coldfire/head.S diff --git a/arch/m68knommu/platform/5307/pit.c b/arch/m68knommu/platform/coldfire/pit.c index 173b754d1cda..4290638012e0 100644 --- a/arch/m68knommu/platform/5307/pit.c +++ b/arch/m68knommu/platform/coldfire/pit.c @@ -3,9 +3,10 @@ /* * pit.c -- Freescale ColdFire PIT timer. Currently this type of * hardware timer only exists in the Freescale ColdFire - * 5270/5271, 5282 and other CPUs. + * 5270/5271, 5282 and 5208 CPUs. No doubt newer ColdFire + * family members will probably use it too. * - * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1999-2008, Greg Ungerer (gerg@snapgear.com) * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) */ @@ -17,6 +18,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/clocksource.h> #include <asm/machdep.h> #include <asm/io.h> #include <asm/coldfire.h> @@ -28,70 +30,84 @@ /* * By default use timer1 as the system clock timer. */ +#define FREQ ((MCF_CLK / 2) / 64) #define TA(a) (MCF_IPSBAR + MCFPIT_BASE1 + (a)) +#define INTC0 (MCF_IPSBAR + MCFICM_INTC0) + +static u32 pit_cycles_per_jiffy; +static u32 pit_cnt; /***************************************************************************/ -static irqreturn_t hw_tick(int irq, void *dummy) +static irqreturn_t pit_tick(int irq, void *dummy) { - unsigned short pcsr; + u16 pcsr; /* Reset the ColdFire timer */ pcsr = __raw_readw(TA(MCFPIT_PCSR)); __raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR)); + pit_cnt += pit_cycles_per_jiffy; return arch_timer_interrupt(irq, dummy); } /***************************************************************************/ -static struct irqaction coldfire_pit_irq = { +static struct irqaction pit_irq = { .name = "timer", .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = hw_tick, + .handler = pit_tick, }; -void hw_timer_init(void) +/***************************************************************************/ + +static cycle_t pit_read_clk(void) { - volatile unsigned char *icrp; - volatile unsigned long *imrp; + unsigned long flags; + u32 cycles; + u16 pcntr; - setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &coldfire_pit_irq); + local_irq_save(flags); + pcntr = __raw_readw(TA(MCFPIT_PCNTR)); + cycles = pit_cnt; + local_irq_restore(flags); - icrp = (volatile unsigned char *) (MCF_IPSBAR + MCFICM_INTC0 + - MCFINTC_ICR0 + MCFINT_PIT1); - *icrp = ICR_INTRCONF; + return cycles + pit_cycles_per_jiffy - pcntr; +} - imrp = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR); - *imrp &= ~MCFPIT_IMR_IBIT; +/***************************************************************************/ - /* Set up PIT timer 1 as poll clock */ - __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); - __raw_writew(((MCF_CLK / 2) / 64) / HZ, TA(MCFPIT_PMR)); - __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | MCFPIT_PCSR_OVW | - MCFPIT_PCSR_RLD | MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR)); -} +static struct clocksource pit_clk = { + .name = "pit", + .rating = 250, + .read = pit_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; /***************************************************************************/ -unsigned long hw_timer_offset(void) +void hw_timer_init(void) { - volatile unsigned long *ipr; - unsigned long pmr, pcntr, offset; + u32 imr; - ipr = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR); + setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &pit_irq); - pmr = __raw_readw(TA(MCFPIT_PMR)); - pcntr = __raw_readw(TA(MCFPIT_PCNTR)); + __raw_writeb(ICR_INTRCONF, INTC0 + MCFINTC_ICR0 + MCFINT_PIT1); + imr = __raw_readl(INTC0 + MCFPIT_IMR); + imr &= ~MCFPIT_IMR_IBIT; + __raw_writel(imr, INTC0 + MCFPIT_IMR); + + /* Set up PIT timer 1 as poll clock */ + pit_cycles_per_jiffy = FREQ / HZ; + __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); + __raw_writew(pit_cycles_per_jiffy, TA(MCFPIT_PMR)); + __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | MCFPIT_PCSR_OVW | + MCFPIT_PCSR_RLD | MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR)); - /* - * If we are still in the first half of the upcount and a - * timer interrupt is pending, then add on a ticks worth of time. - */ - offset = ((pmr - pcntr) * (1000000 / HZ)) / pmr; - if ((offset < (1000000 / HZ / 2)) && (*ipr & MCFPIT_IMR_IBIT)) - offset += 1000000 / HZ; - return offset; + pit_clk.mult = clocksource_hz2mult(FREQ, pit_clk.shift); + clocksource_register(&pit_clk); } /***************************************************************************/ diff --git a/arch/m68knommu/platform/5307/timers.c b/arch/m68knommu/platform/coldfire/timers.c index 489dec85c859..a60213e877ef 100644 --- a/arch/m68knommu/platform/5307/timers.c +++ b/arch/m68knommu/platform/coldfire/timers.c @@ -3,7 +3,7 @@ /* * timers.c -- generic ColdFire hardware timer support. * - * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1999-2008, Greg Ungerer <gerg@snapgear.com> */ /***************************************************************************/ @@ -13,6 +13,8 @@ #include <linux/sched.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/profile.h> +#include <linux/clocksource.h> #include <asm/io.h> #include <asm/traps.h> #include <asm/machdep.h> @@ -25,6 +27,7 @@ /* * By default use timer1 as the system clock timer. */ +#define FREQ (MCF_BUSCLK / 16) #define TA(a) (MCF_MBAR + MCFTIMER_BASE1 + (a)) /* @@ -41,7 +44,7 @@ unsigned int mcf_timerlevel = 5; * Unfortunately it is a little different on each ColdFire. */ extern void mcf_settimericr(int timer, int level); -extern int mcf_timerirqpending(int timer); +void coldfire_profile_init(void); #if defined(CONFIG_M532x) #define __raw_readtrr __raw_readl @@ -51,38 +54,70 @@ extern int mcf_timerirqpending(int timer); #define __raw_writetrr __raw_writew #endif +static u32 mcftmr_cycles_per_jiffy; +static u32 mcftmr_cnt; + /***************************************************************************/ -static irqreturn_t hw_tick(int irq, void *dummy) +static irqreturn_t mcftmr_tick(int irq, void *dummy) { /* Reset the ColdFire timer */ __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, TA(MCFTIMER_TER)); + mcftmr_cnt += mcftmr_cycles_per_jiffy; return arch_timer_interrupt(irq, dummy); } /***************************************************************************/ -static struct irqaction coldfire_timer_irq = { +static struct irqaction mcftmr_timer_irq = { .name = "timer", .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = hw_tick, + .handler = mcftmr_tick, }; /***************************************************************************/ -static int ticks_per_intr; +static cycle_t mcftmr_read_clk(void) +{ + unsigned long flags; + u32 cycles; + u16 tcn; + + local_irq_save(flags); + tcn = __raw_readw(TA(MCFTIMER_TCN)); + cycles = mcftmr_cnt; + local_irq_restore(flags); + + return cycles + tcn; +} + +/***************************************************************************/ + +static struct clocksource mcftmr_clk = { + .name = "tmr", + .rating = 250, + .read = mcftmr_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +/***************************************************************************/ void hw_timer_init(void) { - setup_irq(mcf_timervector, &coldfire_timer_irq); + setup_irq(mcf_timervector, &mcftmr_timer_irq); __raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR)); - ticks_per_intr = (MCF_BUSCLK / 16) / HZ; - __raw_writetrr(ticks_per_intr - 1, TA(MCFTIMER_TRR)); + mcftmr_cycles_per_jiffy = FREQ / HZ; + __raw_writetrr(mcftmr_cycles_per_jiffy, TA(MCFTIMER_TRR)); __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, TA(MCFTIMER_TMR)); + mcftmr_clk.mult = clocksource_hz2mult(FREQ, mcftmr_clk.shift); + clocksource_register(&mcftmr_clk); + mcf_settimericr(1, mcf_timerlevel); #ifdef CONFIG_HIGHPROFILE @@ -91,21 +126,6 @@ void hw_timer_init(void) } /***************************************************************************/ - -unsigned long hw_timer_offset(void) -{ - unsigned long tcn, offset; - - tcn = __raw_readw(TA(MCFTIMER_TCN)); - offset = ((tcn + 1) * (1000000 / HZ)) / ticks_per_intr; - - /* Check if we just wrapped the counters and maybe missed a tick */ - if ((offset < (1000000 / HZ / 2)) && mcf_timerirqpending(1)) - offset += 1000000 / HZ; - return offset; -} - -/***************************************************************************/ #ifdef CONFIG_HIGHPROFILE /***************************************************************************/ diff --git a/arch/m68knommu/platform/5307/vectors.c b/arch/m68knommu/platform/coldfire/vectors.c index 6cf894620234..6cf894620234 100644 --- a/arch/m68knommu/platform/5307/vectors.c +++ b/arch/m68knommu/platform/coldfire/vectors.c diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 4fad0a34b997..ec78a5762e9e 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1,6 +1,7 @@ config MIPS bool default y + select HAVE_OPROFILE # Horrible source of confusion. Die, die, die ... select EMBEDDED select RTC_LIB @@ -1754,8 +1755,8 @@ config SMP People using multiprocessor machines who say Y here should also say Y to "Enhanced Real Time Clock Support", below. - See also the <file:Documentation/smp.txt> and the SMP-HOWTO - available at <http://www.tldp.org/docs.html#howto>. + See also the SMP-HOWTO available at + <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -1961,11 +1962,6 @@ config PCI your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config PCI_DOMAINS bool @@ -2086,6 +2082,10 @@ endmenu menu "Power management options" +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !SMP + source "kernel/power/Kconfig" endmenu @@ -2096,8 +2096,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/mips/Kconfig.debug" source "security/Kconfig" diff --git a/arch/mips/au1000/mtx-1/board_setup.c b/arch/mips/au1000/mtx-1/board_setup.c index abfc4bcddf7a..310d5dff89fc 100644 --- a/arch/mips/au1000/mtx-1/board_setup.c +++ b/arch/mips/au1000/mtx-1/board_setup.c @@ -99,7 +99,7 @@ mtx1_pci_idsel(unsigned int devsel, int assert) #endif if (assert && devsel != 0) { - // supress signal to cardbus + // suppress signal to cardbus au_writel( 0x00000002, SYS_OUTPUTCLR ); // set EXT_IO3 OFF } else { diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c index 9b34238d41c0..77db3473deab 100644 --- a/arch/mips/kernel/binfmt_elfn32.c +++ b/arch/mips/kernel/binfmt_elfn32.c @@ -98,7 +98,7 @@ static __inline__ void jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) { /* - * Convert jiffies to nanoseconds and seperate with + * Convert jiffies to nanoseconds and separate with * one divide. */ u64 nsec = (u64)jiffies * TICK_NSEC; diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c index da41eac195ca..08f4cd781ee3 100644 --- a/arch/mips/kernel/binfmt_elfo32.c +++ b/arch/mips/kernel/binfmt_elfo32.c @@ -100,7 +100,7 @@ static inline void jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) { /* - * Convert jiffies to nanoseconds and seperate with + * Convert jiffies to nanoseconds and separate with * one divide. */ u64 nsec = (u64)jiffies * TICK_NSEC; diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 50be56c9e9ef..a24fb7900901 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -140,7 +140,7 @@ FEXPORT(__kernel_entry) j kernel_entry #endif - __INIT_REFOK + __REF NESTED(kernel_entry, 16, sp) # kernel entry point diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c index f6704ab16306..998c4efcce88 100644 --- a/arch/mips/kernel/kspd.c +++ b/arch/mips/kernel/kspd.c @@ -221,7 +221,7 @@ void sp_work_handle_request(void) } } - /* Run the syscall at the priviledge of the user who loaded the + /* Run the syscall at the privilege of the user who loaded the SP program */ if (vpe_getuid(tclimit)) diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 82480a1717d8..f798139e888e 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -660,7 +660,7 @@ einval: li v0, -EINVAL sys sys_ioprio_get 2 /* 4315 */ sys sys_utimensat 4 sys sys_signalfd 3 - sys sys_timerfd 4 + sys sys_ni_syscall 0 sys sys_eventfd 1 sys sys_fallocate 6 /* 4320 */ .endm diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index c2c10876da2e..a626be6baea3 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -475,7 +475,7 @@ sys_call_table: PTR sys_ioprio_get PTR sys_utimensat /* 5275 */ PTR sys_signalfd - PTR sys_timerfd + PTR sys_ni_syscall PTR sys_eventfd PTR sys_fallocate .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 01993ec3368b..9d5bcaf1b389 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -401,7 +401,7 @@ EXPORT(sysn32_call_table) PTR sys_ioprio_get PTR compat_sys_utimensat PTR compat_sys_signalfd /* 5280 */ - PTR compat_sys_timerfd + PTR sys_ni_syscall PTR sys_eventfd PTR sys_fallocate .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index dd68afce7da5..fd2019c1ec2d 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -523,7 +523,7 @@ sys_call_table: PTR sys_ioprio_get /* 4315 */ PTR compat_sys_utimensat PTR compat_sys_signalfd - PTR compat_sys_timerfd + PTR sys_ni_syscall PTR sys_eventfd PTR sys32_fallocate /* 4320 */ .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 269c252d956f..c032409cba9b 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -424,13 +424,13 @@ static void __init bootmem_init(void) #endif /* CONFIG_SGI_IP27 */ /* - * arch_mem_init - initialize memory managment subsystem + * arch_mem_init - initialize memory management subsystem * * o plat_mem_setup() detects the memory configuration and will record detected * memory areas using add_memory_region. * * At this stage the memory configuration of the system is known to the - * kernel but generic memory managment system is still entirely uninitialized. + * kernel but generic memory management system is still entirely uninitialized. * * o bootmem_init() * o sparse_init() diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 85f700e58131..b42e71c71119 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -65,7 +65,7 @@ asiduse smtc_live_asid[MAX_SMTC_TLBS][MAX_SMTC_ASIDS]; static atomic_t ipi_timer_latch[NR_CPUS]; /* - * Number of InterProcessor Interupt (IPI) message buffers to allocate + * Number of InterProcessor Interrupt (IPI) message buffers to allocate */ #define IPIBUF_PER_CPU 4 @@ -780,7 +780,7 @@ void smtc_send_ipi(int cpu, int type, unsigned int action) if (cpu_data[cpu].vpe_id != cpu_data[smp_processor_id()].vpe_id) { if (type == SMTC_CLOCK_TICK) atomic_inc(&ipi_timer_latch[cpu]); - /* If not on same VPE, enqueue and send cross-VPE interupt */ + /* If not on same VPE, enqueue and send cross-VPE interrupt */ smtc_ipi_nq(&IPIQ[cpu], pipi); LOCK_CORE_PRA(); settc(cpu_data[cpu].tc_id); @@ -1063,7 +1063,7 @@ static void setup_cross_vpe_interrupts(unsigned int nvpe) return; if (!cpu_has_vint) - panic("SMTC Kernel requires Vectored Interupt support"); + panic("SMTC Kernel requires Vectored Interrupt support"); set_vi_handler(MIPS_CPU_IPI_IRQ, ipi_irq_dispatch); diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile index 32fd5db95774..c6f832e0f41c 100644 --- a/arch/mips/mm/Makefile +++ b/arch/mips/mm/Makefile @@ -3,7 +3,8 @@ # obj-y += cache.o dma-default.o extable.o fault.o \ - init.o pgtable.o tlbex.o tlbex-fault.o + init.o pgtable.o tlbex.o tlbex-fault.o \ + uasm.o obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o obj-$(CONFIG_64BIT) += pgtable-64.o diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 02bd180f0e02..53ec05267a98 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1101,7 +1101,7 @@ static void __init setup_scache(void) /* * Do the probing thing on R4000SC and R4400SC processors. Other * processors don't have a S-cache that would be relevant to the - * Linux memory managment. + * Linux memory management. */ switch (c->cputype) { case CPU_R4000SC: diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index d026302e0ecc..218a6cc415e8 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -5,7 +5,7 @@ * * Synthesize TLB refill handlers at runtime. * - * Copyright (C) 2004,2005,2006 by Thiemo Seufer + * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer * Copyright (C) 2005, 2007 Maciej W. Rozycki * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) * @@ -24,12 +24,11 @@ #include <linux/string.h> #include <linux/init.h> -#include <asm/bugs.h> #include <asm/mmu_context.h> -#include <asm/inst.h> -#include <asm/elf.h> #include <asm/war.h> +#include "uasm.h" + static inline int r45k_bvahwbug(void) { /* XXX: We should probe for the presence of this bug, but we don't. */ @@ -67,371 +66,9 @@ static int __init m4kc_tlbp_war(void) (PRID_COMP_MIPS | PRID_IMP_4KC); } -/* - * A little micro-assembler, intended for TLB refill handler - * synthesizing. It is intentionally kept simple, does only support - * a subset of instructions, and does not try to hide pipeline effects - * like branch delay slots. - */ - -enum fields -{ - RS = 0x001, - RT = 0x002, - RD = 0x004, - RE = 0x008, - SIMM = 0x010, - UIMM = 0x020, - BIMM = 0x040, - JIMM = 0x080, - FUNC = 0x100, - SET = 0x200 -}; - -#define OP_MASK 0x3f -#define OP_SH 26 -#define RS_MASK 0x1f -#define RS_SH 21 -#define RT_MASK 0x1f -#define RT_SH 16 -#define RD_MASK 0x1f -#define RD_SH 11 -#define RE_MASK 0x1f -#define RE_SH 6 -#define IMM_MASK 0xffff -#define IMM_SH 0 -#define JIMM_MASK 0x3ffffff -#define JIMM_SH 0 -#define FUNC_MASK 0x3f -#define FUNC_SH 0 -#define SET_MASK 0x7 -#define SET_SH 0 - -enum opcode { - insn_invalid, - insn_addu, insn_addiu, insn_and, insn_andi, insn_beq, - insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl, - insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0, - insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, - insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld, - insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0, - insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll, - insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi, - insn_tlbwr, insn_xor, insn_xori -}; - -struct insn { - enum opcode opcode; - u32 match; - enum fields fields; -}; - -/* This macro sets the non-variable bits of an instruction. */ -#define M(a, b, c, d, e, f) \ - ((a) << OP_SH \ - | (b) << RS_SH \ - | (c) << RT_SH \ - | (d) << RD_SH \ - | (e) << RE_SH \ - | (f) << FUNC_SH) - -static struct insn insn_table[] __initdata = { - { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD }, - { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD }, - { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, - { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, - { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, - { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM }, - { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM }, - { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM }, - { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM }, - { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, - { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD }, - { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET}, - { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET}, - { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE }, - { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE }, - { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE }, - { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE }, - { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE }, - { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD }, - { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 }, - { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, - { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM }, - { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS }, - { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM }, - { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET}, - { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET}, - { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, - { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 }, - { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, - { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, - { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE }, - { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD }, - { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, - { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 }, - { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 }, - { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 }, - { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD }, - { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, - { insn_invalid, 0, 0 } -}; - -#undef M - -static u32 __init build_rs(u32 arg) -{ - if (arg & ~RS_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return (arg & RS_MASK) << RS_SH; -} - -static u32 __init build_rt(u32 arg) -{ - if (arg & ~RT_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return (arg & RT_MASK) << RT_SH; -} - -static u32 __init build_rd(u32 arg) -{ - if (arg & ~RD_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return (arg & RD_MASK) << RD_SH; -} - -static u32 __init build_re(u32 arg) -{ - if (arg & ~RE_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return (arg & RE_MASK) << RE_SH; -} - -static u32 __init build_simm(s32 arg) -{ - if (arg > 0x7fff || arg < -0x8000) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return arg & 0xffff; -} - -static u32 __init build_uimm(u32 arg) -{ - if (arg & ~IMM_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return arg & IMM_MASK; -} - -static u32 __init build_bimm(s32 arg) -{ - if (arg > 0x1ffff || arg < -0x20000) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - if (arg & 0x3) - printk(KERN_WARNING "Invalid TLB synthesizer branch target\n"); - - return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff); -} - -static u32 __init build_jimm(u32 arg) -{ - if (arg & ~((JIMM_MASK) << 2)) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return (arg >> 2) & JIMM_MASK; -} - -static u32 __init build_func(u32 arg) -{ - if (arg & ~FUNC_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return arg & FUNC_MASK; -} - -static u32 __init build_set(u32 arg) -{ - if (arg & ~SET_MASK) - printk(KERN_WARNING "TLB synthesizer field overflow\n"); - - return arg & SET_MASK; -} - -/* - * The order of opcode arguments is implicitly left to right, - * starting with RS and ending with FUNC or IMM. - */ -static void __init build_insn(u32 **buf, enum opcode opc, ...) -{ - struct insn *ip = NULL; - unsigned int i; - va_list ap; - u32 op; - - for (i = 0; insn_table[i].opcode != insn_invalid; i++) - if (insn_table[i].opcode == opc) { - ip = &insn_table[i]; - break; - } - - if (!ip || (opc == insn_daddiu && r4k_daddiu_bug())) - panic("Unsupported TLB synthesizer instruction %d", opc); - - op = ip->match; - va_start(ap, opc); - if (ip->fields & RS) op |= build_rs(va_arg(ap, u32)); - if (ip->fields & RT) op |= build_rt(va_arg(ap, u32)); - if (ip->fields & RD) op |= build_rd(va_arg(ap, u32)); - if (ip->fields & RE) op |= build_re(va_arg(ap, u32)); - if (ip->fields & SIMM) op |= build_simm(va_arg(ap, s32)); - if (ip->fields & UIMM) op |= build_uimm(va_arg(ap, u32)); - if (ip->fields & BIMM) op |= build_bimm(va_arg(ap, s32)); - if (ip->fields & JIMM) op |= build_jimm(va_arg(ap, u32)); - if (ip->fields & FUNC) op |= build_func(va_arg(ap, u32)); - if (ip->fields & SET) op |= build_set(va_arg(ap, u32)); - va_end(ap); - - **buf = op; - (*buf)++; -} - -#define I_u1u2u3(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b, unsigned int c) \ - { \ - build_insn(buf, insn##op, a, b, c); \ - } - -#define I_u2u1u3(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b, unsigned int c) \ - { \ - build_insn(buf, insn##op, b, a, c); \ - } - -#define I_u3u1u2(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b, unsigned int c) \ - { \ - build_insn(buf, insn##op, b, c, a); \ - } - -#define I_u1u2s3(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b, signed int c) \ - { \ - build_insn(buf, insn##op, a, b, c); \ - } - -#define I_u2s3u1(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - signed int b, unsigned int c) \ - { \ - build_insn(buf, insn##op, c, a, b); \ - } - -#define I_u2u1s3(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b, signed int c) \ - { \ - build_insn(buf, insn##op, b, a, c); \ - } - -#define I_u1u2(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - unsigned int b) \ - { \ - build_insn(buf, insn##op, a, b); \ - } - -#define I_u1s2(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a, \ - signed int b) \ - { \ - build_insn(buf, insn##op, a, b); \ - } - -#define I_u1(op) \ - static void __init __maybe_unused i##op(u32 **buf, unsigned int a) \ - { \ - build_insn(buf, insn##op, a); \ - } - -#define I_0(op) \ - static void __init __maybe_unused i##op(u32 **buf) \ - { \ - build_insn(buf, insn##op); \ - } - -I_u2u1s3(_addiu); -I_u3u1u2(_addu); -I_u2u1u3(_andi); -I_u3u1u2(_and); -I_u1u2s3(_beq); -I_u1u2s3(_beql); -I_u1s2(_bgez); -I_u1s2(_bgezl); -I_u1s2(_bltz); -I_u1s2(_bltzl); -I_u1u2s3(_bne); -I_u1u2u3(_dmfc0); -I_u1u2u3(_dmtc0); -I_u2u1s3(_daddiu); -I_u3u1u2(_daddu); -I_u2u1u3(_dsll); -I_u2u1u3(_dsll32); -I_u2u1u3(_dsra); -I_u2u1u3(_dsrl); -I_u2u1u3(_dsrl32); -I_u3u1u2(_dsubu); -I_0(_eret); -I_u1(_j); -I_u1(_jal); -I_u1(_jr); -I_u2s3u1(_ld); -I_u2s3u1(_ll); -I_u2s3u1(_lld); -I_u1s2(_lui); -I_u2s3u1(_lw); -I_u1u2u3(_mfc0); -I_u1u2u3(_mtc0); -I_u2u1u3(_ori); -I_0(_rfe); -I_u2s3u1(_sc); -I_u2s3u1(_scd); -I_u2s3u1(_sd); -I_u2u1u3(_sll); -I_u2u1u3(_sra); -I_u2u1u3(_srl); -I_u3u1u2(_subu); -I_u2s3u1(_sw); -I_0(_tlbp); -I_0(_tlbwi); -I_0(_tlbwr); -I_u3u1u2(_xor) -I_u2u1u3(_xori); - -/* - * handling labels - */ - +/* Handle labels (which must be positive integers). */ enum label_id { - label_invalid, - label_second_part, + label_second_part = 1, label_leave, #ifdef MODULE_START label_module_alloc, @@ -447,278 +84,20 @@ enum label_id { label_r3000_write_probe_fail, }; -struct label { - u32 *addr; - enum label_id lab; -}; - -static void __init build_label(struct label **lab, u32 *addr, - enum label_id l) -{ - (*lab)->addr = addr; - (*lab)->lab = l; - (*lab)++; -} - -#define L_LA(lb) \ - static inline void __init l##lb(struct label **lab, u32 *addr) \ - { \ - build_label(lab, addr, label##lb); \ - } - -L_LA(_second_part) -L_LA(_leave) +UASM_L_LA(_second_part) +UASM_L_LA(_leave) #ifdef MODULE_START -L_LA(_module_alloc) -#endif -L_LA(_vmalloc) -L_LA(_vmalloc_done) -L_LA(_tlbw_hazard) -L_LA(_split) -L_LA(_nopage_tlbl) -L_LA(_nopage_tlbs) -L_LA(_nopage_tlbm) -L_LA(_smp_pgtable_change) -L_LA(_r3000_write_probe_fail) - -/* convenience macros for instructions */ -#ifdef CONFIG_64BIT -# define i_LW(buf, rs, rt, off) i_ld(buf, rs, rt, off) -# define i_SW(buf, rs, rt, off) i_sd(buf, rs, rt, off) -# define i_SLL(buf, rs, rt, sh) i_dsll(buf, rs, rt, sh) -# define i_SRA(buf, rs, rt, sh) i_dsra(buf, rs, rt, sh) -# define i_SRL(buf, rs, rt, sh) i_dsrl(buf, rs, rt, sh) -# define i_MFC0(buf, rt, rd...) i_dmfc0(buf, rt, rd) -# define i_MTC0(buf, rt, rd...) i_dmtc0(buf, rt, rd) -# define i_ADDIU(buf, rs, rt, val) i_daddiu(buf, rs, rt, val) -# define i_ADDU(buf, rs, rt, rd) i_daddu(buf, rs, rt, rd) -# define i_SUBU(buf, rs, rt, rd) i_dsubu(buf, rs, rt, rd) -# define i_LL(buf, rs, rt, off) i_lld(buf, rs, rt, off) -# define i_SC(buf, rs, rt, off) i_scd(buf, rs, rt, off) -#else -# define i_LW(buf, rs, rt, off) i_lw(buf, rs, rt, off) -# define i_SW(buf, rs, rt, off) i_sw(buf, rs, rt, off) -# define i_SLL(buf, rs, rt, sh) i_sll(buf, rs, rt, sh) -# define i_SRA(buf, rs, rt, sh) i_sra(buf, rs, rt, sh) -# define i_SRL(buf, rs, rt, sh) i_srl(buf, rs, rt, sh) -# define i_MFC0(buf, rt, rd...) i_mfc0(buf, rt, rd) -# define i_MTC0(buf, rt, rd...) i_mtc0(buf, rt, rd) -# define i_ADDIU(buf, rs, rt, val) i_addiu(buf, rs, rt, val) -# define i_ADDU(buf, rs, rt, rd) i_addu(buf, rs, rt, rd) -# define i_SUBU(buf, rs, rt, rd) i_subu(buf, rs, rt, rd) -# define i_LL(buf, rs, rt, off) i_ll(buf, rs, rt, off) -# define i_SC(buf, rs, rt, off) i_sc(buf, rs, rt, off) -#endif - -#define i_b(buf, off) i_beq(buf, 0, 0, off) -#define i_beqz(buf, rs, off) i_beq(buf, rs, 0, off) -#define i_beqzl(buf, rs, off) i_beql(buf, rs, 0, off) -#define i_bnez(buf, rs, off) i_bne(buf, rs, 0, off) -#define i_bnezl(buf, rs, off) i_bnel(buf, rs, 0, off) -#define i_move(buf, a, b) i_ADDU(buf, a, 0, b) -#define i_nop(buf) i_sll(buf, 0, 0, 0) -#define i_ssnop(buf) i_sll(buf, 0, 0, 1) -#define i_ehb(buf) i_sll(buf, 0, 0, 3) - -static int __init __maybe_unused in_compat_space_p(long addr) -{ - /* Is this address in 32bit compat space? */ -#ifdef CONFIG_64BIT - return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L); -#else - return 1; +UASM_L_LA(_module_alloc) #endif -} - -static int __init __maybe_unused rel_highest(long val) -{ -#ifdef CONFIG_64BIT - return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; -#else - return 0; -#endif -} - -static int __init __maybe_unused rel_higher(long val) -{ -#ifdef CONFIG_64BIT - return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000; -#else - return 0; -#endif -} - -static int __init rel_hi(long val) -{ - return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000; -} - -static int __init rel_lo(long val) -{ - return ((val & 0xffff) ^ 0x8000) - 0x8000; -} - -static void __init i_LA_mostly(u32 **buf, unsigned int rs, long addr) -{ - if (!in_compat_space_p(addr)) { - i_lui(buf, rs, rel_highest(addr)); - if (rel_higher(addr)) - i_daddiu(buf, rs, rs, rel_higher(addr)); - if (rel_hi(addr)) { - i_dsll(buf, rs, rs, 16); - i_daddiu(buf, rs, rs, rel_hi(addr)); - i_dsll(buf, rs, rs, 16); - } else - i_dsll32(buf, rs, rs, 0); - } else - i_lui(buf, rs, rel_hi(addr)); -} - -static void __init __maybe_unused i_LA(u32 **buf, unsigned int rs, long addr) -{ - i_LA_mostly(buf, rs, addr); - if (rel_lo(addr)) { - if (!in_compat_space_p(addr)) - i_daddiu(buf, rs, rs, rel_lo(addr)); - else - i_addiu(buf, rs, rs, rel_lo(addr)); - } -} - -/* - * handle relocations - */ - -struct reloc { - u32 *addr; - unsigned int type; - enum label_id lab; -}; - -static void __init r_mips_pc16(struct reloc **rel, u32 *addr, - enum label_id l) -{ - (*rel)->addr = addr; - (*rel)->type = R_MIPS_PC16; - (*rel)->lab = l; - (*rel)++; -} - -static inline void __resolve_relocs(struct reloc *rel, struct label *lab) -{ - long laddr = (long)lab->addr; - long raddr = (long)rel->addr; - - switch (rel->type) { - case R_MIPS_PC16: - *rel->addr |= build_bimm(laddr - (raddr + 4)); - break; - - default: - panic("Unsupported TLB synthesizer relocation %d", - rel->type); - } -} - -static void __init resolve_relocs(struct reloc *rel, struct label *lab) -{ - struct label *l; - - for (; rel->lab != label_invalid; rel++) - for (l = lab; l->lab != label_invalid; l++) - if (rel->lab == l->lab) - __resolve_relocs(rel, l); -} - -static void __init move_relocs(struct reloc *rel, u32 *first, u32 *end, - long off) -{ - for (; rel->lab != label_invalid; rel++) - if (rel->addr >= first && rel->addr < end) - rel->addr += off; -} - -static void __init move_labels(struct label *lab, u32 *first, u32 *end, - long off) -{ - for (; lab->lab != label_invalid; lab++) - if (lab->addr >= first && lab->addr < end) - lab->addr += off; -} - -static void __init copy_handler(struct reloc *rel, struct label *lab, - u32 *first, u32 *end, u32 *target) -{ - long off = (long)(target - first); - - memcpy(target, first, (end - first) * sizeof(u32)); - - move_relocs(rel, first, end, off); - move_labels(lab, first, end, off); -} - -static int __init __maybe_unused insn_has_bdelay(struct reloc *rel, - u32 *addr) -{ - for (; rel->lab != label_invalid; rel++) { - if (rel->addr == addr - && (rel->type == R_MIPS_PC16 - || rel->type == R_MIPS_26)) - return 1; - } - - return 0; -} - -/* convenience functions for labeled branches */ -static void __init __maybe_unused - il_bltz(u32 **p, struct reloc **r, unsigned int reg, enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_bltz(p, reg, 0); -} - -static void __init __maybe_unused il_b(u32 **p, struct reloc **r, - enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_b(p, 0); -} - -static void __init il_beqz(u32 **p, struct reloc **r, unsigned int reg, - enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_beqz(p, reg, 0); -} - -static void __init __maybe_unused -il_beqzl(u32 **p, struct reloc **r, unsigned int reg, enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_beqzl(p, reg, 0); -} - -static void __init il_bnez(u32 **p, struct reloc **r, unsigned int reg, - enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_bnez(p, reg, 0); -} - -static void __init il_bgezl(u32 **p, struct reloc **r, unsigned int reg, - enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_bgezl(p, reg, 0); -} - -static void __init __maybe_unused -il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l) -{ - r_mips_pc16(r, *p, l); - i_bgez(p, reg, 0); -} +UASM_L_LA(_vmalloc) +UASM_L_LA(_vmalloc_done) +UASM_L_LA(_tlbw_hazard) +UASM_L_LA(_split) +UASM_L_LA(_nopage_tlbl) +UASM_L_LA(_nopage_tlbs) +UASM_L_LA(_nopage_tlbm) +UASM_L_LA(_smp_pgtable_change) +UASM_L_LA(_r3000_write_probe_fail) /* * For debug purposes. @@ -752,9 +131,9 @@ static inline void dump_handler(const u32 *handler, int count) #define C0_XCONTEXT 20, 0 #ifdef CONFIG_64BIT -# define GET_CONTEXT(buf, reg) i_MFC0(buf, reg, C0_XCONTEXT) +# define GET_CONTEXT(buf, reg) UASM_i_MFC0(buf, reg, C0_XCONTEXT) #else -# define GET_CONTEXT(buf, reg) i_MFC0(buf, reg, C0_CONTEXT) +# define GET_CONTEXT(buf, reg) UASM_i_MFC0(buf, reg, C0_CONTEXT) #endif /* The worst case length of the handler is around 18 instructions for @@ -768,8 +147,8 @@ static inline void dump_handler(const u32 *handler, int count) static u32 tlb_handler[128] __initdata; /* simply assume worst case size for labels and relocs */ -static struct label labels[128] __initdata; -static struct reloc relocs[128] __initdata; +static struct uasm_label labels[128] __initdata; +static struct uasm_reloc relocs[128] __initdata; /* * The R3000 TLB handler is simple. @@ -782,29 +161,29 @@ static void __init build_r3000_tlb_refill_handler(void) memset(tlb_handler, 0, sizeof(tlb_handler)); p = tlb_handler; - i_mfc0(&p, K0, C0_BADVADDR); - i_lui(&p, K1, rel_hi(pgdc)); /* cp0 delay */ - i_lw(&p, K1, rel_lo(pgdc), K1); - i_srl(&p, K0, K0, 22); /* load delay */ - i_sll(&p, K0, K0, 2); - i_addu(&p, K1, K1, K0); - i_mfc0(&p, K0, C0_CONTEXT); - i_lw(&p, K1, 0, K1); /* cp0 delay */ - i_andi(&p, K0, K0, 0xffc); /* load delay */ - i_addu(&p, K1, K1, K0); - i_lw(&p, K0, 0, K1); - i_nop(&p); /* load delay */ - i_mtc0(&p, K0, C0_ENTRYLO0); - i_mfc0(&p, K1, C0_EPC); /* cp0 delay */ - i_tlbwr(&p); /* cp0 delay */ - i_jr(&p, K1); - i_rfe(&p); /* branch delay */ + uasm_i_mfc0(&p, K0, C0_BADVADDR); + uasm_i_lui(&p, K1, uasm_rel_hi(pgdc)); /* cp0 delay */ + uasm_i_lw(&p, K1, uasm_rel_lo(pgdc), K1); + uasm_i_srl(&p, K0, K0, 22); /* load delay */ + uasm_i_sll(&p, K0, K0, 2); + uasm_i_addu(&p, K1, K1, K0); + uasm_i_mfc0(&p, K0, C0_CONTEXT); + uasm_i_lw(&p, K1, 0, K1); /* cp0 delay */ + uasm_i_andi(&p, K0, K0, 0xffc); /* load delay */ + uasm_i_addu(&p, K1, K1, K0); + uasm_i_lw(&p, K0, 0, K1); + uasm_i_nop(&p); /* load delay */ + uasm_i_mtc0(&p, K0, C0_ENTRYLO0); + uasm_i_mfc0(&p, K1, C0_EPC); /* cp0 delay */ + uasm_i_tlbwr(&p); /* cp0 delay */ + uasm_i_jr(&p, K1); + uasm_i_rfe(&p); /* branch delay */ if (p > tlb_handler + 32) panic("TLB refill handler space exceeded"); - pr_info("Synthesized TLB refill handler (%u instructions).\n", - (unsigned int)(p - tlb_handler)); + pr_debug("Wrote TLB refill handler (%u instructions).\n", + (unsigned int)(p - tlb_handler)); memcpy((void *)ebase, tlb_handler, 0x80); @@ -850,12 +229,12 @@ static void __init __maybe_unused build_tlb_probe_entry(u32 **p) case CPU_R5000: case CPU_R5000A: case CPU_NEVADA: - i_nop(p); - i_tlbp(p); + uasm_i_nop(p); + uasm_i_tlbp(p); break; default: - i_tlbp(p); + uasm_i_tlbp(p); break; } } @@ -866,19 +245,19 @@ static void __init __maybe_unused build_tlb_probe_entry(u32 **p) */ enum tlb_write_entry { tlb_random, tlb_indexed }; -static void __init build_tlb_write_entry(u32 **p, struct label **l, - struct reloc **r, +static void __init build_tlb_write_entry(u32 **p, struct uasm_label **l, + struct uasm_reloc **r, enum tlb_write_entry wmode) { void(*tlbw)(u32 **) = NULL; switch (wmode) { - case tlb_random: tlbw = i_tlbwr; break; - case tlb_indexed: tlbw = i_tlbwi; break; + case tlb_random: tlbw = uasm_i_tlbwr; break; + case tlb_indexed: tlbw = uasm_i_tlbwi; break; } if (cpu_has_mips_r2) { - i_ehb(p); + uasm_i_ehb(p); tlbw(p); return; } @@ -894,19 +273,19 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, * This branch uses up a mtc0 hazard nop slot and saves * two nops after the tlbw instruction. */ - il_bgezl(p, r, 0, label_tlbw_hazard); + uasm_il_bgezl(p, r, 0, label_tlbw_hazard); tlbw(p); - l_tlbw_hazard(l, *p); - i_nop(p); + uasm_l_tlbw_hazard(l, *p); + uasm_i_nop(p); break; case CPU_R4600: case CPU_R4700: case CPU_R5000: case CPU_R5000A: - i_nop(p); + uasm_i_nop(p); tlbw(p); - i_nop(p); + uasm_i_nop(p); break; case CPU_R4300: @@ -920,7 +299,7 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, case CPU_AU1210: case CPU_AU1250: case CPU_PR4450: - i_nop(p); + uasm_i_nop(p); tlbw(p); break; @@ -937,26 +316,26 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, case CPU_BCM4710: case CPU_LOONGSON2: if (m4kc_tlbp_war()) - i_nop(p); + uasm_i_nop(p); tlbw(p); break; case CPU_NEVADA: - i_nop(p); /* QED specifies 2 nops hazard */ + uasm_i_nop(p); /* QED specifies 2 nops hazard */ /* * This branch uses up a mtc0 hazard nop slot and saves * a nop after the tlbw instruction. */ - il_bgezl(p, r, 0, label_tlbw_hazard); + uasm_il_bgezl(p, r, 0, label_tlbw_hazard); tlbw(p); - l_tlbw_hazard(l, *p); + uasm_l_tlbw_hazard(l, *p); break; case CPU_RM7000: - i_nop(p); - i_nop(p); - i_nop(p); - i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); tlbw(p); break; @@ -967,15 +346,15 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, * cpu cycles and use for data translations should not occur * for 3 cpu cycles. */ - i_ssnop(p); - i_ssnop(p); - i_ssnop(p); - i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); tlbw(p); - i_ssnop(p); - i_ssnop(p); - i_ssnop(p); - i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); + uasm_i_ssnop(p); break; case CPU_VR4111: @@ -983,18 +362,18 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, case CPU_VR4122: case CPU_VR4181: case CPU_VR4181A: - i_nop(p); - i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); tlbw(p); - i_nop(p); - i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); break; case CPU_VR4131: case CPU_VR4133: case CPU_R5432: - i_nop(p); - i_nop(p); + uasm_i_nop(p); + uasm_i_nop(p); tlbw(p); break; @@ -1011,7 +390,7 @@ static void __init build_tlb_write_entry(u32 **p, struct label **l, * TMP will be clobbered, PTR will hold the pmd entry. */ static void __init -build_get_pmde64(u32 **p, struct label **l, struct reloc **r, +build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int tmp, unsigned int ptr) { long pgdc = (long)pgd_current; @@ -1019,52 +398,52 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r, /* * The vmalloc handling is not in the hotpath. */ - i_dmfc0(p, tmp, C0_BADVADDR); + uasm_i_dmfc0(p, tmp, C0_BADVADDR); #ifdef MODULE_START - il_bltz(p, r, tmp, label_module_alloc); + uasm_il_bltz(p, r, tmp, label_module_alloc); #else - il_bltz(p, r, tmp, label_vmalloc); + uasm_il_bltz(p, r, tmp, label_vmalloc); #endif - /* No i_nop needed here, since the next insn doesn't touch TMP. */ + /* No uasm_i_nop needed here, since the next insn doesn't touch TMP. */ #ifdef CONFIG_SMP # ifdef CONFIG_MIPS_MT_SMTC /* * SMTC uses TCBind value as "CPU" index */ - i_mfc0(p, ptr, C0_TCBIND); - i_dsrl(p, ptr, ptr, 19); + uasm_i_mfc0(p, ptr, C0_TCBIND); + uasm_i_dsrl(p, ptr, ptr, 19); # else /* * 64 bit SMP running in XKPHYS has smp_processor_id() << 3 * stored in CONTEXT. */ - i_dmfc0(p, ptr, C0_CONTEXT); - i_dsrl(p, ptr, ptr, 23); + uasm_i_dmfc0(p, ptr, C0_CONTEXT); + uasm_i_dsrl(p, ptr, ptr, 23); #endif - i_LA_mostly(p, tmp, pgdc); - i_daddu(p, ptr, ptr, tmp); - i_dmfc0(p, tmp, C0_BADVADDR); - i_ld(p, ptr, rel_lo(pgdc), ptr); + UASM_i_LA_mostly(p, tmp, pgdc); + uasm_i_daddu(p, ptr, ptr, tmp); + uasm_i_dmfc0(p, tmp, C0_BADVADDR); + uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr); #else - i_LA_mostly(p, ptr, pgdc); - i_ld(p, ptr, rel_lo(pgdc), ptr); + UASM_i_LA_mostly(p, ptr, pgdc); + uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr); #endif - l_vmalloc_done(l, *p); + uasm_l_vmalloc_done(l, *p); if (PGDIR_SHIFT - 3 < 32) /* get pgd offset in bytes */ - i_dsrl(p, tmp, tmp, PGDIR_SHIFT-3); + uasm_i_dsrl(p, tmp, tmp, PGDIR_SHIFT-3); else - i_dsrl32(p, tmp, tmp, PGDIR_SHIFT - 3 - 32); - - i_andi(p, tmp, tmp, (PTRS_PER_PGD - 1)<<3); - i_daddu(p, ptr, ptr, tmp); /* add in pgd offset */ - i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */ - i_ld(p, ptr, 0, ptr); /* get pmd pointer */ - i_dsrl(p, tmp, tmp, PMD_SHIFT-3); /* get pmd offset in bytes */ - i_andi(p, tmp, tmp, (PTRS_PER_PMD - 1)<<3); - i_daddu(p, ptr, ptr, tmp); /* add in pmd offset */ + uasm_i_dsrl32(p, tmp, tmp, PGDIR_SHIFT - 3 - 32); + + uasm_i_andi(p, tmp, tmp, (PTRS_PER_PGD - 1)<<3); + uasm_i_daddu(p, ptr, ptr, tmp); /* add in pgd offset */ + uasm_i_dmfc0(p, tmp, C0_BADVADDR); /* get faulting address */ + uasm_i_ld(p, ptr, 0, ptr); /* get pmd pointer */ + uasm_i_dsrl(p, tmp, tmp, PMD_SHIFT-3); /* get pmd offset in bytes */ + uasm_i_andi(p, tmp, tmp, (PTRS_PER_PMD - 1)<<3); + uasm_i_daddu(p, ptr, ptr, tmp); /* add in pmd offset */ } /* @@ -1072,7 +451,7 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r, * PTR will hold the pgd for vmalloc. */ static void __init -build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r, +build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int bvaddr, unsigned int ptr) { long swpd = (long)swapper_pg_dir; @@ -1080,58 +459,60 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r, #ifdef MODULE_START long modd = (long)module_pg_dir; - l_module_alloc(l, *p); + uasm_l_module_alloc(l, *p); /* * Assumption: * VMALLOC_START >= 0xc000000000000000UL * MODULE_START >= 0xe000000000000000UL */ - i_SLL(p, ptr, bvaddr, 2); - il_bgez(p, r, ptr, label_vmalloc); + UASM_i_SLL(p, ptr, bvaddr, 2); + uasm_il_bgez(p, r, ptr, label_vmalloc); - if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START)) { - i_lui(p, ptr, rel_hi(MODULE_START)); /* delay slot */ + if (uasm_in_compat_space_p(MODULE_START) && + !uasm_rel_lo(MODULE_START)) { + uasm_i_lui(p, ptr, uasm_rel_hi(MODULE_START)); /* delay slot */ } else { /* unlikely configuration */ - i_nop(p); /* delay slot */ - i_LA(p, ptr, MODULE_START); + uasm_i_nop(p); /* delay slot */ + UASM_i_LA(p, ptr, MODULE_START); } - i_dsubu(p, bvaddr, bvaddr, ptr); + uasm_i_dsubu(p, bvaddr, bvaddr, ptr); - if (in_compat_space_p(modd) && !rel_lo(modd)) { - il_b(p, r, label_vmalloc_done); - i_lui(p, ptr, rel_hi(modd)); + if (uasm_in_compat_space_p(modd) && !uasm_rel_lo(modd)) { + uasm_il_b(p, r, label_vmalloc_done); + uasm_i_lui(p, ptr, uasm_rel_hi(modd)); } else { - i_LA_mostly(p, ptr, modd); - il_b(p, r, label_vmalloc_done); - if (in_compat_space_p(modd)) - i_addiu(p, ptr, ptr, rel_lo(modd)); + UASM_i_LA_mostly(p, ptr, modd); + uasm_il_b(p, r, label_vmalloc_done); + if (uasm_in_compat_space_p(modd)) + uasm_i_addiu(p, ptr, ptr, uasm_rel_lo(modd)); else - i_daddiu(p, ptr, ptr, rel_lo(modd)); + uasm_i_daddiu(p, ptr, ptr, uasm_rel_lo(modd)); } - l_vmalloc(l, *p); - if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START) && + uasm_l_vmalloc(l, *p); + if (uasm_in_compat_space_p(MODULE_START) && + !uasm_rel_lo(MODULE_START) && MODULE_START << 32 == VMALLOC_START) - i_dsll32(p, ptr, ptr, 0); /* typical case */ + uasm_i_dsll32(p, ptr, ptr, 0); /* typical case */ else - i_LA(p, ptr, VMALLOC_START); + UASM_i_LA(p, ptr, VMALLOC_START); #else - l_vmalloc(l, *p); - i_LA(p, ptr, VMALLOC_START); + uasm_l_vmalloc(l, *p); + UASM_i_LA(p, ptr, VMALLOC_START); #endif - i_dsubu(p, bvaddr, bvaddr, ptr); + uasm_i_dsubu(p, bvaddr, bvaddr, ptr); - if (in_compat_space_p(swpd) && !rel_lo(swpd)) { - il_b(p, r, label_vmalloc_done); - i_lui(p, ptr, rel_hi(swpd)); + if (uasm_in_compat_space_p(swpd) && !uasm_rel_lo(swpd)) { + uasm_il_b(p, r, label_vmalloc_done); + uasm_i_lui(p, ptr, uasm_rel_hi(swpd)); } else { - i_LA_mostly(p, ptr, swpd); - il_b(p, r, label_vmalloc_done); - if (in_compat_space_p(swpd)) - i_addiu(p, ptr, ptr, rel_lo(swpd)); + UASM_i_LA_mostly(p, ptr, swpd); + uasm_il_b(p, r, label_vmalloc_done); + if (uasm_in_compat_space_p(swpd)) + uasm_i_addiu(p, ptr, ptr, uasm_rel_lo(swpd)); else - i_daddiu(p, ptr, ptr, rel_lo(swpd)); + uasm_i_daddiu(p, ptr, ptr, uasm_rel_lo(swpd)); } } @@ -1152,26 +533,26 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr) /* * SMTC uses TCBind value as "CPU" index */ - i_mfc0(p, ptr, C0_TCBIND); - i_LA_mostly(p, tmp, pgdc); - i_srl(p, ptr, ptr, 19); + uasm_i_mfc0(p, ptr, C0_TCBIND); + UASM_i_LA_mostly(p, tmp, pgdc); + uasm_i_srl(p, ptr, ptr, 19); #else /* * smp_processor_id() << 3 is stored in CONTEXT. */ - i_mfc0(p, ptr, C0_CONTEXT); - i_LA_mostly(p, tmp, pgdc); - i_srl(p, ptr, ptr, 23); + uasm_i_mfc0(p, ptr, C0_CONTEXT); + UASM_i_LA_mostly(p, tmp, pgdc); + uasm_i_srl(p, ptr, ptr, 23); #endif - i_addu(p, ptr, tmp, ptr); + uasm_i_addu(p, ptr, tmp, ptr); #else - i_LA_mostly(p, ptr, pgdc); + UASM_i_LA_mostly(p, ptr, pgdc); #endif - i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */ - i_lw(p, ptr, rel_lo(pgdc), ptr); - i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */ - i_sll(p, tmp, tmp, PGD_T_LOG2); - i_addu(p, ptr, ptr, tmp); /* add in pgd offset */ + uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */ + uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr); + uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */ + uasm_i_sll(p, tmp, tmp, PGD_T_LOG2); + uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */ } #endif /* !CONFIG_64BIT */ @@ -1198,8 +579,8 @@ static void __init build_adjust_context(u32 **p, unsigned int ctx) } if (shift) - i_SRL(p, ctx, ctx, shift); - i_andi(p, ctx, ctx, mask); + UASM_i_SRL(p, ctx, ctx, shift); + uasm_i_andi(p, ctx, ctx, mask); } static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) @@ -1213,18 +594,18 @@ static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr) */ switch (current_cpu_type()) { case CPU_NEVADA: - i_LW(p, ptr, 0, ptr); + UASM_i_LW(p, ptr, 0, ptr); GET_CONTEXT(p, tmp); /* get context reg */ break; default: GET_CONTEXT(p, tmp); /* get context reg */ - i_LW(p, ptr, 0, ptr); + UASM_i_LW(p, ptr, 0, ptr); break; } build_adjust_context(p, tmp); - i_ADDU(p, ptr, ptr, tmp); /* add in offset */ + UASM_i_ADDU(p, ptr, ptr, tmp); /* add in offset */ } static void __init build_update_entries(u32 **p, unsigned int tmp, @@ -1236,45 +617,45 @@ static void __init build_update_entries(u32 **p, unsigned int tmp, */ #ifdef CONFIG_64BIT_PHYS_ADDR if (cpu_has_64bits) { - i_ld(p, tmp, 0, ptep); /* get even pte */ - i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ - i_dsrl(p, tmp, tmp, 6); /* convert to entrylo0 */ - i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ - i_dsrl(p, ptep, ptep, 6); /* convert to entrylo1 */ - i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ + uasm_i_ld(p, tmp, 0, ptep); /* get even pte */ + uasm_i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ + uasm_i_dsrl(p, tmp, tmp, 6); /* convert to entrylo0 */ + uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ + uasm_i_dsrl(p, ptep, ptep, 6); /* convert to entrylo1 */ + uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ } else { int pte_off_even = sizeof(pte_t) / 2; int pte_off_odd = pte_off_even + sizeof(pte_t); /* The pte entries are pre-shifted */ - i_lw(p, tmp, pte_off_even, ptep); /* get even pte */ - i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ - i_lw(p, ptep, pte_off_odd, ptep); /* get odd pte */ - i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ + uasm_i_lw(p, tmp, pte_off_even, ptep); /* get even pte */ + uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ + uasm_i_lw(p, ptep, pte_off_odd, ptep); /* get odd pte */ + uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ } #else - i_LW(p, tmp, 0, ptep); /* get even pte */ - i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ + UASM_i_LW(p, tmp, 0, ptep); /* get even pte */ + UASM_i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */ if (r45k_bvahwbug()) build_tlb_probe_entry(p); - i_SRL(p, tmp, tmp, 6); /* convert to entrylo0 */ + UASM_i_SRL(p, tmp, tmp, 6); /* convert to entrylo0 */ if (r4k_250MHZhwbug()) - i_mtc0(p, 0, C0_ENTRYLO0); - i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ - i_SRL(p, ptep, ptep, 6); /* convert to entrylo1 */ + uasm_i_mtc0(p, 0, C0_ENTRYLO0); + uasm_i_mtc0(p, tmp, C0_ENTRYLO0); /* load it */ + UASM_i_SRL(p, ptep, ptep, 6); /* convert to entrylo1 */ if (r45k_bvahwbug()) - i_mfc0(p, tmp, C0_INDEX); + uasm_i_mfc0(p, tmp, C0_INDEX); if (r4k_250MHZhwbug()) - i_mtc0(p, 0, C0_ENTRYLO1); - i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ + uasm_i_mtc0(p, 0, C0_ENTRYLO1); + uasm_i_mtc0(p, ptep, C0_ENTRYLO1); /* load it */ #endif } static void __init build_r4000_tlb_refill_handler(void) { u32 *p = tlb_handler; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; u32 *f; unsigned int final_len; @@ -1287,12 +668,12 @@ static void __init build_r4000_tlb_refill_handler(void) * create the plain linear handler */ if (bcm1250_m3_war()) { - i_MFC0(&p, K0, C0_BADVADDR); - i_MFC0(&p, K1, C0_ENTRYHI); - i_xor(&p, K0, K0, K1); - i_SRL(&p, K0, K0, PAGE_SHIFT + 1); - il_bnez(&p, &r, K0, label_leave); - /* No need for i_nop */ + UASM_i_MFC0(&p, K0, C0_BADVADDR); + UASM_i_MFC0(&p, K1, C0_ENTRYHI); + uasm_i_xor(&p, K0, K0, K1); + UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1); + uasm_il_bnez(&p, &r, K0, label_leave); + /* No need for uasm_i_nop */ } #ifdef CONFIG_64BIT @@ -1304,8 +685,8 @@ static void __init build_r4000_tlb_refill_handler(void) build_get_ptep(&p, K0, K1); build_update_entries(&p, K0, K1); build_tlb_write_entry(&p, &l, &r, tlb_random); - l_leave(&l, p); - i_eret(&p); /* return from trap */ + uasm_l_leave(&l, p); + uasm_i_eret(&p); /* return from trap */ #ifdef CONFIG_64BIT build_get_pgd_vmalloc64(&p, &l, &r, K0, K1); @@ -1325,7 +706,7 @@ static void __init build_r4000_tlb_refill_handler(void) #else if (((p - tlb_handler) > 63) || (((p - tlb_handler) > 61) - && insn_has_bdelay(relocs, tlb_handler + 29))) + && uasm_insn_has_bdelay(relocs, tlb_handler + 29))) panic("TLB refill handler space exceeded"); #endif @@ -1335,13 +716,13 @@ static void __init build_r4000_tlb_refill_handler(void) #if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2) f = final_handler; /* Simplest case, just copy the handler. */ - copy_handler(relocs, labels, tlb_handler, p, f); + uasm_copy_handler(relocs, labels, tlb_handler, p, f); final_len = p - tlb_handler; #else /* CONFIG_64BIT */ f = final_handler + 32; if ((p - tlb_handler) <= 32) { /* Just copy the handler. */ - copy_handler(relocs, labels, tlb_handler, p, f); + uasm_copy_handler(relocs, labels, tlb_handler, p, f); final_len = p - tlb_handler; } else { u32 *split = tlb_handler + 30; @@ -1349,34 +730,34 @@ static void __init build_r4000_tlb_refill_handler(void) /* * Find the split point. */ - if (insn_has_bdelay(relocs, split - 1)) + if (uasm_insn_has_bdelay(relocs, split - 1)) split--; /* Copy first part of the handler. */ - copy_handler(relocs, labels, tlb_handler, split, f); + uasm_copy_handler(relocs, labels, tlb_handler, split, f); f += split - tlb_handler; /* Insert branch. */ - l_split(&l, final_handler); - il_b(&f, &r, label_split); - if (insn_has_bdelay(relocs, split)) - i_nop(&f); + uasm_l_split(&l, final_handler); + uasm_il_b(&f, &r, label_split); + if (uasm_insn_has_bdelay(relocs, split)) + uasm_i_nop(&f); else { - copy_handler(relocs, labels, split, split + 1, f); - move_labels(labels, f, f + 1, -1); + uasm_copy_handler(relocs, labels, split, split + 1, f); + uasm_move_labels(labels, f, f + 1, -1); f++; split++; } /* Copy the rest of the handler. */ - copy_handler(relocs, labels, split, p, final_handler); + uasm_copy_handler(relocs, labels, split, p, final_handler); final_len = (f - (final_handler + 32)) + (p - split); } #endif /* CONFIG_64BIT */ - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB refill handler (%u instructions).\n", - final_len); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB refill handler (%u instructions).\n", + final_len); memcpy((void *)ebase, final_handler, 0x100); @@ -1403,75 +784,75 @@ u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned; u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned; static void __init -iPTE_LW(u32 **p, struct label **l, unsigned int pte, unsigned int ptr) +iPTE_LW(u32 **p, struct uasm_label **l, unsigned int pte, unsigned int ptr) { #ifdef CONFIG_SMP # ifdef CONFIG_64BIT_PHYS_ADDR if (cpu_has_64bits) - i_lld(p, pte, 0, ptr); + uasm_i_lld(p, pte, 0, ptr); else # endif - i_LL(p, pte, 0, ptr); + UASM_i_LL(p, pte, 0, ptr); #else # ifdef CONFIG_64BIT_PHYS_ADDR if (cpu_has_64bits) - i_ld(p, pte, 0, ptr); + uasm_i_ld(p, pte, 0, ptr); else # endif - i_LW(p, pte, 0, ptr); + UASM_i_LW(p, pte, 0, ptr); #endif } static void __init -iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, unsigned int ptr, +iPTE_SW(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, unsigned int mode) { #ifdef CONFIG_64BIT_PHYS_ADDR unsigned int hwmode = mode & (_PAGE_VALID | _PAGE_DIRTY); #endif - i_ori(p, pte, pte, mode); + uasm_i_ori(p, pte, pte, mode); #ifdef CONFIG_SMP # ifdef CONFIG_64BIT_PHYS_ADDR if (cpu_has_64bits) - i_scd(p, pte, 0, ptr); + uasm_i_scd(p, pte, 0, ptr); else # endif - i_SC(p, pte, 0, ptr); + UASM_i_SC(p, pte, 0, ptr); if (r10000_llsc_war()) - il_beqzl(p, r, pte, label_smp_pgtable_change); + uasm_il_beqzl(p, r, pte, label_smp_pgtable_change); else - il_beqz(p, r, pte, label_smp_pgtable_change); + uasm_il_beqz(p, r, pte, label_smp_pgtable_change); # ifdef CONFIG_64BIT_PHYS_ADDR if (!cpu_has_64bits) { - /* no i_nop needed */ - i_ll(p, pte, sizeof(pte_t) / 2, ptr); - i_ori(p, pte, pte, hwmode); - i_sc(p, pte, sizeof(pte_t) / 2, ptr); - il_beqz(p, r, pte, label_smp_pgtable_change); - /* no i_nop needed */ - i_lw(p, pte, 0, ptr); + /* no uasm_i_nop needed */ + uasm_i_ll(p, pte, sizeof(pte_t) / 2, ptr); + uasm_i_ori(p, pte, pte, hwmode); + uasm_i_sc(p, pte, sizeof(pte_t) / 2, ptr); + uasm_il_beqz(p, r, pte, label_smp_pgtable_change); + /* no uasm_i_nop needed */ + uasm_i_lw(p, pte, 0, ptr); } else - i_nop(p); + uasm_i_nop(p); # else - i_nop(p); + uasm_i_nop(p); # endif #else # ifdef CONFIG_64BIT_PHYS_ADDR if (cpu_has_64bits) - i_sd(p, pte, 0, ptr); + uasm_i_sd(p, pte, 0, ptr); else # endif - i_SW(p, pte, 0, ptr); + UASM_i_SW(p, pte, 0, ptr); # ifdef CONFIG_64BIT_PHYS_ADDR if (!cpu_has_64bits) { - i_lw(p, pte, sizeof(pte_t) / 2, ptr); - i_ori(p, pte, pte, hwmode); - i_sw(p, pte, sizeof(pte_t) / 2, ptr); - i_lw(p, pte, 0, ptr); + uasm_i_lw(p, pte, sizeof(pte_t) / 2, ptr); + uasm_i_ori(p, pte, pte, hwmode); + uasm_i_sw(p, pte, sizeof(pte_t) / 2, ptr); + uasm_i_lw(p, pte, 0, ptr); } # endif #endif @@ -1483,18 +864,18 @@ iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, unsigned int ptr, * with it's original value. */ static void __init -build_pte_present(u32 **p, struct label **l, struct reloc **r, +build_pte_present(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { - i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); - i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); - il_bnez(p, r, pte, lid); + uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); + uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ); + uasm_il_bnez(p, r, pte, lid); iPTE_LW(p, l, pte, ptr); } /* Make PTE valid, store result in PTR. */ static void __init -build_make_valid(u32 **p, struct reloc **r, unsigned int pte, +build_make_valid(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr) { unsigned int mode = _PAGE_VALID | _PAGE_ACCESSED; @@ -1507,12 +888,12 @@ build_make_valid(u32 **p, struct reloc **r, unsigned int pte, * restore PTE with value from PTR when done. */ static void __init -build_pte_writable(u32 **p, struct label **l, struct reloc **r, +build_pte_writable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { - i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); - i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); - il_bnez(p, r, pte, lid); + uasm_i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); + uasm_i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE); + uasm_il_bnez(p, r, pte, lid); iPTE_LW(p, l, pte, ptr); } @@ -1520,7 +901,7 @@ build_pte_writable(u32 **p, struct label **l, struct reloc **r, * at PTR. */ static void __init -build_make_write(u32 **p, struct reloc **r, unsigned int pte, +build_make_write(u32 **p, struct uasm_reloc **r, unsigned int pte, unsigned int ptr) { unsigned int mode = (_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID @@ -1534,11 +915,11 @@ build_make_write(u32 **p, struct reloc **r, unsigned int pte, * restore PTE with value from PTR when done. */ static void __init -build_pte_modifiable(u32 **p, struct label **l, struct reloc **r, +build_pte_modifiable(u32 **p, struct uasm_label **l, struct uasm_reloc **r, unsigned int pte, unsigned int ptr, enum label_id lid) { - i_andi(p, pte, pte, _PAGE_WRITE); - il_beqz(p, r, pte, lid); + uasm_i_andi(p, pte, pte, _PAGE_WRITE); + uasm_il_beqz(p, r, pte, lid); iPTE_LW(p, l, pte, ptr); } @@ -1553,11 +934,11 @@ build_pte_modifiable(u32 **p, struct label **l, struct reloc **r, static void __init build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp) { - i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ - i_mfc0(p, tmp, C0_EPC); /* cp0 delay */ - i_tlbwi(p); - i_jr(p, tmp); - i_rfe(p); /* branch delay */ + uasm_i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ + uasm_i_mfc0(p, tmp, C0_EPC); /* cp0 delay */ + uasm_i_tlbwi(p); + uasm_i_jr(p, tmp); + uasm_i_rfe(p); /* branch delay */ } /* @@ -1567,20 +948,21 @@ build_r3000_pte_reload_tlbwi(u32 **p, unsigned int pte, unsigned int tmp) * kseg2 access, i.e. without refill. Then it returns. */ static void __init -build_r3000_tlb_reload_write(u32 **p, struct label **l, struct reloc **r, - unsigned int pte, unsigned int tmp) -{ - i_mfc0(p, tmp, C0_INDEX); - i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ - il_bltz(p, r, tmp, label_r3000_write_probe_fail); /* cp0 delay */ - i_mfc0(p, tmp, C0_EPC); /* branch delay */ - i_tlbwi(p); /* cp0 delay */ - i_jr(p, tmp); - i_rfe(p); /* branch delay */ - l_r3000_write_probe_fail(l, *p); - i_tlbwr(p); /* cp0 delay */ - i_jr(p, tmp); - i_rfe(p); /* branch delay */ +build_r3000_tlb_reload_write(u32 **p, struct uasm_label **l, + struct uasm_reloc **r, unsigned int pte, + unsigned int tmp) +{ + uasm_i_mfc0(p, tmp, C0_INDEX); + uasm_i_mtc0(p, pte, C0_ENTRYLO0); /* cp0 delay */ + uasm_il_bltz(p, r, tmp, label_r3000_write_probe_fail); /* cp0 delay */ + uasm_i_mfc0(p, tmp, C0_EPC); /* branch delay */ + uasm_i_tlbwi(p); /* cp0 delay */ + uasm_i_jr(p, tmp); + uasm_i_rfe(p); /* branch delay */ + uasm_l_r3000_write_probe_fail(l, *p); + uasm_i_tlbwr(p); /* cp0 delay */ + uasm_i_jr(p, tmp); + uasm_i_rfe(p); /* branch delay */ } static void __init @@ -1589,25 +971,25 @@ build_r3000_tlbchange_handler_head(u32 **p, unsigned int pte, { long pgdc = (long)pgd_current; - i_mfc0(p, pte, C0_BADVADDR); - i_lui(p, ptr, rel_hi(pgdc)); /* cp0 delay */ - i_lw(p, ptr, rel_lo(pgdc), ptr); - i_srl(p, pte, pte, 22); /* load delay */ - i_sll(p, pte, pte, 2); - i_addu(p, ptr, ptr, pte); - i_mfc0(p, pte, C0_CONTEXT); - i_lw(p, ptr, 0, ptr); /* cp0 delay */ - i_andi(p, pte, pte, 0xffc); /* load delay */ - i_addu(p, ptr, ptr, pte); - i_lw(p, pte, 0, ptr); - i_tlbp(p); /* load delay */ + uasm_i_mfc0(p, pte, C0_BADVADDR); + uasm_i_lui(p, ptr, uasm_rel_hi(pgdc)); /* cp0 delay */ + uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr); + uasm_i_srl(p, pte, pte, 22); /* load delay */ + uasm_i_sll(p, pte, pte, 2); + uasm_i_addu(p, ptr, ptr, pte); + uasm_i_mfc0(p, pte, C0_CONTEXT); + uasm_i_lw(p, ptr, 0, ptr); /* cp0 delay */ + uasm_i_andi(p, pte, pte, 0xffc); /* load delay */ + uasm_i_addu(p, ptr, ptr, pte); + uasm_i_lw(p, pte, 0, ptr); + uasm_i_tlbp(p); /* load delay */ } static void __init build_r3000_tlb_load_handler(void) { u32 *p = handle_tlbl; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbl, 0, sizeof(handle_tlbl)); memset(labels, 0, sizeof(labels)); @@ -1615,20 +997,20 @@ static void __init build_r3000_tlb_load_handler(void) build_r3000_tlbchange_handler_head(&p, K0, K1); build_pte_present(&p, &l, &r, K0, K1, label_nopage_tlbl); - i_nop(&p); /* load delay */ + uasm_i_nop(&p); /* load delay */ build_make_valid(&p, &r, K0, K1); build_r3000_tlb_reload_write(&p, &l, &r, K0, K1); - l_nopage_tlbl(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbl(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbl) > FASTPATH_SIZE) panic("TLB load handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB load handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbl)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB load handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbl)); dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); } @@ -1636,8 +1018,8 @@ static void __init build_r3000_tlb_load_handler(void) static void __init build_r3000_tlb_store_handler(void) { u32 *p = handle_tlbs; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbs, 0, sizeof(handle_tlbs)); memset(labels, 0, sizeof(labels)); @@ -1645,20 +1027,20 @@ static void __init build_r3000_tlb_store_handler(void) build_r3000_tlbchange_handler_head(&p, K0, K1); build_pte_writable(&p, &l, &r, K0, K1, label_nopage_tlbs); - i_nop(&p); /* load delay */ + uasm_i_nop(&p); /* load delay */ build_make_write(&p, &r, K0, K1); build_r3000_tlb_reload_write(&p, &l, &r, K0, K1); - l_nopage_tlbs(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbs(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbs) > FASTPATH_SIZE) panic("TLB store handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB store handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbs)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB store handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbs)); dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); } @@ -1666,8 +1048,8 @@ static void __init build_r3000_tlb_store_handler(void) static void __init build_r3000_tlb_modify_handler(void) { u32 *p = handle_tlbm; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbm, 0, sizeof(handle_tlbm)); memset(labels, 0, sizeof(labels)); @@ -1675,20 +1057,20 @@ static void __init build_r3000_tlb_modify_handler(void) build_r3000_tlbchange_handler_head(&p, K0, K1); build_pte_modifiable(&p, &l, &r, K0, K1, label_nopage_tlbm); - i_nop(&p); /* load delay */ + uasm_i_nop(&p); /* load delay */ build_make_write(&p, &r, K0, K1); build_r3000_pte_reload_tlbwi(&p, K0, K1); - l_nopage_tlbm(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbm(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbm) > FASTPATH_SIZE) panic("TLB modify handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbm)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbm)); dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm)); } @@ -1697,8 +1079,8 @@ static void __init build_r3000_tlb_modify_handler(void) * R4000 style TLB load/store/modify handlers. */ static void __init -build_r4000_tlbchange_handler_head(u32 **p, struct label **l, - struct reloc **r, unsigned int pte, +build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l, + struct uasm_reloc **r, unsigned int pte, unsigned int ptr) { #ifdef CONFIG_64BIT @@ -1707,31 +1089,31 @@ build_r4000_tlbchange_handler_head(u32 **p, struct label **l, build_get_pgde32(p, pte, ptr); /* get pgd in ptr */ #endif - i_MFC0(p, pte, C0_BADVADDR); - i_LW(p, ptr, 0, ptr); - i_SRL(p, pte, pte, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2); - i_andi(p, pte, pte, (PTRS_PER_PTE - 1) << PTE_T_LOG2); - i_ADDU(p, ptr, ptr, pte); + UASM_i_MFC0(p, pte, C0_BADVADDR); + UASM_i_LW(p, ptr, 0, ptr); + UASM_i_SRL(p, pte, pte, PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2); + uasm_i_andi(p, pte, pte, (PTRS_PER_PTE - 1) << PTE_T_LOG2); + UASM_i_ADDU(p, ptr, ptr, pte); #ifdef CONFIG_SMP - l_smp_pgtable_change(l, *p); -# endif + uasm_l_smp_pgtable_change(l, *p); +#endif iPTE_LW(p, l, pte, ptr); /* get even pte */ if (!m4kc_tlbp_war()) build_tlb_probe_entry(p); } static void __init -build_r4000_tlbchange_handler_tail(u32 **p, struct label **l, - struct reloc **r, unsigned int tmp, +build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l, + struct uasm_reloc **r, unsigned int tmp, unsigned int ptr) { - i_ori(p, ptr, ptr, sizeof(pte_t)); - i_xori(p, ptr, ptr, sizeof(pte_t)); + uasm_i_ori(p, ptr, ptr, sizeof(pte_t)); + uasm_i_xori(p, ptr, ptr, sizeof(pte_t)); build_update_entries(p, tmp, ptr); build_tlb_write_entry(p, l, r, tlb_indexed); - l_leave(l, *p); - i_eret(p); /* return from trap */ + uasm_l_leave(l, *p); + uasm_i_eret(p); /* return from trap */ #ifdef CONFIG_64BIT build_get_pgd_vmalloc64(p, l, r, tmp, ptr); @@ -1741,20 +1123,20 @@ build_r4000_tlbchange_handler_tail(u32 **p, struct label **l, static void __init build_r4000_tlb_load_handler(void) { u32 *p = handle_tlbl; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbl, 0, sizeof(handle_tlbl)); memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); if (bcm1250_m3_war()) { - i_MFC0(&p, K0, C0_BADVADDR); - i_MFC0(&p, K1, C0_ENTRYHI); - i_xor(&p, K0, K0, K1); - i_SRL(&p, K0, K0, PAGE_SHIFT + 1); - il_bnez(&p, &r, K0, label_leave); - /* No need for i_nop */ + UASM_i_MFC0(&p, K0, C0_BADVADDR); + UASM_i_MFC0(&p, K1, C0_ENTRYHI); + uasm_i_xor(&p, K0, K0, K1); + UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1); + uasm_il_bnez(&p, &r, K0, label_leave); + /* No need for uasm_i_nop */ } build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1); @@ -1764,16 +1146,16 @@ static void __init build_r4000_tlb_load_handler(void) build_make_valid(&p, &r, K0, K1); build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); - l_nopage_tlbl(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbl(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbl) > FASTPATH_SIZE) panic("TLB load handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB load handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbl)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB load handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbl)); dump_handler(handle_tlbl, ARRAY_SIZE(handle_tlbl)); } @@ -1781,8 +1163,8 @@ static void __init build_r4000_tlb_load_handler(void) static void __init build_r4000_tlb_store_handler(void) { u32 *p = handle_tlbs; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbs, 0, sizeof(handle_tlbs)); memset(labels, 0, sizeof(labels)); @@ -1795,16 +1177,16 @@ static void __init build_r4000_tlb_store_handler(void) build_make_write(&p, &r, K0, K1); build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); - l_nopage_tlbs(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbs(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbs) > FASTPATH_SIZE) panic("TLB store handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB store handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbs)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB store handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbs)); dump_handler(handle_tlbs, ARRAY_SIZE(handle_tlbs)); } @@ -1812,8 +1194,8 @@ static void __init build_r4000_tlb_store_handler(void) static void __init build_r4000_tlb_modify_handler(void) { u32 *p = handle_tlbm; - struct label *l = labels; - struct reloc *r = relocs; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; memset(handle_tlbm, 0, sizeof(handle_tlbm)); memset(labels, 0, sizeof(labels)); @@ -1827,16 +1209,16 @@ static void __init build_r4000_tlb_modify_handler(void) build_make_write(&p, &r, K0, K1); build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1); - l_nopage_tlbm(&l, p); - i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); - i_nop(&p); + uasm_l_nopage_tlbm(&l, p); + uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff); + uasm_i_nop(&p); if ((p - handle_tlbm) > FASTPATH_SIZE) panic("TLB modify handler fastpath space exceeded"); - resolve_relocs(relocs, labels); - pr_info("Synthesized TLB modify handler fastpath (%u instructions).\n", - (unsigned int)(p - handle_tlbm)); + uasm_resolve_relocs(relocs, labels); + pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n", + (unsigned int)(p - handle_tlbm)); dump_handler(handle_tlbm, ARRAY_SIZE(handle_tlbm)); } diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c new file mode 100644 index 000000000000..e3f74ed5f704 --- /dev/null +++ b/arch/mips/mm/uasm.c @@ -0,0 +1,576 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * A small micro-assembler. It is intentionally kept simple, does only + * support a subset of instructions, and does not try to hide pipeline + * effects like branch delay slots. + * + * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer + * Copyright (C) 2005, 2007 Maciej W. Rozycki + * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> + +#include <asm/inst.h> +#include <asm/elf.h> +#include <asm/bugs.h> + +#include "uasm.h" + +enum fields { + RS = 0x001, + RT = 0x002, + RD = 0x004, + RE = 0x008, + SIMM = 0x010, + UIMM = 0x020, + BIMM = 0x040, + JIMM = 0x080, + FUNC = 0x100, + SET = 0x200 +}; + +#define OP_MASK 0x3f +#define OP_SH 26 +#define RS_MASK 0x1f +#define RS_SH 21 +#define RT_MASK 0x1f +#define RT_SH 16 +#define RD_MASK 0x1f +#define RD_SH 11 +#define RE_MASK 0x1f +#define RE_SH 6 +#define IMM_MASK 0xffff +#define IMM_SH 0 +#define JIMM_MASK 0x3ffffff +#define JIMM_SH 0 +#define FUNC_MASK 0x3f +#define FUNC_SH 0 +#define SET_MASK 0x7 +#define SET_SH 0 + +enum opcode { + insn_invalid, + insn_addu, insn_addiu, insn_and, insn_andi, insn_beq, + insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl, + insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0, + insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, + insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld, + insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0, + insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll, + insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi, + insn_tlbwr, insn_xor, insn_xori +}; + +struct insn { + enum opcode opcode; + u32 match; + enum fields fields; +}; + +/* This macro sets the non-variable bits of an instruction. */ +#define M(a, b, c, d, e, f) \ + ((a) << OP_SH \ + | (b) << RS_SH \ + | (c) << RT_SH \ + | (d) << RD_SH \ + | (e) << RE_SH \ + | (f) << FUNC_SH) + +static struct insn insn_table[] __initdata = { + { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD }, + { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD }, + { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, + { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, + { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, + { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM }, + { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM }, + { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM }, + { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM }, + { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, + { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD }, + { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET}, + { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET}, + { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE }, + { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE }, + { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE }, + { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE }, + { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE }, + { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD }, + { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 }, + { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, + { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM }, + { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS }, + { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM }, + { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET}, + { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET}, + { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, + { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 }, + { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, + { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, + { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE }, + { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD }, + { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 }, + { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 }, + { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 }, + { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD }, + { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, + { insn_invalid, 0, 0 } +}; + +#undef M + +static inline __init u32 build_rs(u32 arg) +{ + if (arg & ~RS_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg & RS_MASK) << RS_SH; +} + +static inline __init u32 build_rt(u32 arg) +{ + if (arg & ~RT_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg & RT_MASK) << RT_SH; +} + +static inline __init u32 build_rd(u32 arg) +{ + if (arg & ~RD_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg & RD_MASK) << RD_SH; +} + +static inline __init u32 build_re(u32 arg) +{ + if (arg & ~RE_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg & RE_MASK) << RE_SH; +} + +static inline __init u32 build_simm(s32 arg) +{ + if (arg > 0x7fff || arg < -0x8000) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return arg & 0xffff; +} + +static inline __init u32 build_uimm(u32 arg) +{ + if (arg & ~IMM_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return arg & IMM_MASK; +} + +static inline __init u32 build_bimm(s32 arg) +{ + if (arg > 0x1ffff || arg < -0x20000) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + if (arg & 0x3) + printk(KERN_WARNING "Invalid micro-assembler branch target\n"); + + return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff); +} + +static inline __init u32 build_jimm(u32 arg) +{ + if (arg & ~((JIMM_MASK) << 2)) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg >> 2) & JIMM_MASK; +} + +static inline __init u32 build_func(u32 arg) +{ + if (arg & ~FUNC_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return arg & FUNC_MASK; +} + +static inline __init u32 build_set(u32 arg) +{ + if (arg & ~SET_MASK) + printk(KERN_WARNING "Micro-assembler field overflow\n"); + + return arg & SET_MASK; +} + +/* + * The order of opcode arguments is implicitly left to right, + * starting with RS and ending with FUNC or IMM. + */ +static void __init build_insn(u32 **buf, enum opcode opc, ...) +{ + struct insn *ip = NULL; + unsigned int i; + va_list ap; + u32 op; + + for (i = 0; insn_table[i].opcode != insn_invalid; i++) + if (insn_table[i].opcode == opc) { + ip = &insn_table[i]; + break; + } + + if (!ip || (opc == insn_daddiu && r4k_daddiu_bug())) + panic("Unsupported Micro-assembler instruction %d", opc); + + op = ip->match; + va_start(ap, opc); + if (ip->fields & RS) + op |= build_rs(va_arg(ap, u32)); + if (ip->fields & RT) + op |= build_rt(va_arg(ap, u32)); + if (ip->fields & RD) + op |= build_rd(va_arg(ap, u32)); + if (ip->fields & RE) + op |= build_re(va_arg(ap, u32)); + if (ip->fields & SIMM) + op |= build_simm(va_arg(ap, s32)); + if (ip->fields & UIMM) + op |= build_uimm(va_arg(ap, u32)); + if (ip->fields & BIMM) + op |= build_bimm(va_arg(ap, s32)); + if (ip->fields & JIMM) + op |= build_jimm(va_arg(ap, u32)); + if (ip->fields & FUNC) + op |= build_func(va_arg(ap, u32)); + if (ip->fields & SET) + op |= build_set(va_arg(ap, u32)); + va_end(ap); + + **buf = op; + (*buf)++; +} + +#define I_u1u2u3(op) \ +Ip_u1u2u3(op) \ +{ \ + build_insn(buf, insn##op, a, b, c); \ +} + +#define I_u2u1u3(op) \ +Ip_u2u1u3(op) \ +{ \ + build_insn(buf, insn##op, b, a, c); \ +} + +#define I_u3u1u2(op) \ +Ip_u3u1u2(op) \ +{ \ + build_insn(buf, insn##op, b, c, a); \ +} + +#define I_u1u2s3(op) \ +Ip_u1u2s3(op) \ +{ \ + build_insn(buf, insn##op, a, b, c); \ +} + +#define I_u2s3u1(op) \ +Ip_u2s3u1(op) \ +{ \ + build_insn(buf, insn##op, c, a, b); \ +} + +#define I_u2u1s3(op) \ +Ip_u2u1s3(op) \ +{ \ + build_insn(buf, insn##op, b, a, c); \ +} + +#define I_u1u2(op) \ +Ip_u1u2(op) \ +{ \ + build_insn(buf, insn##op, a, b); \ +} + +#define I_u1s2(op) \ +Ip_u1s2(op) \ +{ \ + build_insn(buf, insn##op, a, b); \ +} + +#define I_u1(op) \ +Ip_u1(op) \ +{ \ + build_insn(buf, insn##op, a); \ +} + +#define I_0(op) \ +Ip_0(op) \ +{ \ + build_insn(buf, insn##op); \ +} + +I_u2u1s3(_addiu) +I_u3u1u2(_addu) +I_u2u1u3(_andi) +I_u3u1u2(_and) +I_u1u2s3(_beq) +I_u1u2s3(_beql) +I_u1s2(_bgez) +I_u1s2(_bgezl) +I_u1s2(_bltz) +I_u1s2(_bltzl) +I_u1u2s3(_bne) +I_u1u2u3(_dmfc0) +I_u1u2u3(_dmtc0) +I_u2u1s3(_daddiu) +I_u3u1u2(_daddu) +I_u2u1u3(_dsll) +I_u2u1u3(_dsll32) +I_u2u1u3(_dsra) +I_u2u1u3(_dsrl) +I_u2u1u3(_dsrl32) +I_u3u1u2(_dsubu) +I_0(_eret) +I_u1(_j) +I_u1(_jal) +I_u1(_jr) +I_u2s3u1(_ld) +I_u2s3u1(_ll) +I_u2s3u1(_lld) +I_u1s2(_lui) +I_u2s3u1(_lw) +I_u1u2u3(_mfc0) +I_u1u2u3(_mtc0) +I_u2u1u3(_ori) +I_0(_rfe) +I_u2s3u1(_sc) +I_u2s3u1(_scd) +I_u2s3u1(_sd) +I_u2u1u3(_sll) +I_u2u1u3(_sra) +I_u2u1u3(_srl) +I_u3u1u2(_subu) +I_u2s3u1(_sw) +I_0(_tlbp) +I_0(_tlbwi) +I_0(_tlbwr) +I_u3u1u2(_xor) +I_u2u1u3(_xori) + +/* Handle labels. */ +void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) +{ + (*lab)->addr = addr; + (*lab)->lab = lid; + (*lab)++; +} + +int __init uasm_in_compat_space_p(long addr) +{ + /* Is this address in 32bit compat space? */ +#ifdef CONFIG_64BIT + return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L); +#else + return 1; +#endif +} + +int __init uasm_rel_highest(long val) +{ +#ifdef CONFIG_64BIT + return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; +#else + return 0; +#endif +} + +int __init uasm_rel_higher(long val) +{ +#ifdef CONFIG_64BIT + return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000; +#else + return 0; +#endif +} + +int __init uasm_rel_hi(long val) +{ + return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000; +} + +int __init uasm_rel_lo(long val) +{ + return ((val & 0xffff) ^ 0x8000) - 0x8000; +} + +void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr) +{ + if (!uasm_in_compat_space_p(addr)) { + uasm_i_lui(buf, rs, uasm_rel_highest(addr)); + if (uasm_rel_higher(addr)) + uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr)); + if (uasm_rel_hi(addr)) { + uasm_i_dsll(buf, rs, rs, 16); + uasm_i_daddiu(buf, rs, rs, uasm_rel_hi(addr)); + uasm_i_dsll(buf, rs, rs, 16); + } else + uasm_i_dsll32(buf, rs, rs, 0); + } else + uasm_i_lui(buf, rs, uasm_rel_hi(addr)); +} + +void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr) +{ + UASM_i_LA_mostly(buf, rs, addr); + if (uasm_rel_lo(addr)) { + if (!uasm_in_compat_space_p(addr)) + uasm_i_daddiu(buf, rs, rs, uasm_rel_lo(addr)); + else + uasm_i_addiu(buf, rs, rs, uasm_rel_lo(addr)); + } +} + +/* Handle relocations. */ +void __init +uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid) +{ + (*rel)->addr = addr; + (*rel)->type = R_MIPS_PC16; + (*rel)->lab = lid; + (*rel)++; +} + +static inline void __init +__resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) +{ + long laddr = (long)lab->addr; + long raddr = (long)rel->addr; + + switch (rel->type) { + case R_MIPS_PC16: + *rel->addr |= build_bimm(laddr - (raddr + 4)); + break; + + default: + panic("Unsupported Micro-assembler relocation %d", + rel->type); + } +} + +void __init +uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) +{ + struct uasm_label *l; + + for (; rel->lab != UASM_LABEL_INVALID; rel++) + for (l = lab; l->lab != UASM_LABEL_INVALID; l++) + if (rel->lab == l->lab) + __resolve_relocs(rel, l); +} + +void __init +uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off) +{ + for (; rel->lab != UASM_LABEL_INVALID; rel++) + if (rel->addr >= first && rel->addr < end) + rel->addr += off; +} + +void __init +uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off) +{ + for (; lab->lab != UASM_LABEL_INVALID; lab++) + if (lab->addr >= first && lab->addr < end) + lab->addr += off; +} + +void __init +uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, + u32 *end, u32 *target) +{ + long off = (long)(target - first); + + memcpy(target, first, (end - first) * sizeof(u32)); + + uasm_move_relocs(rel, first, end, off); + uasm_move_labels(lab, first, end, off); +} + +int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr) +{ + for (; rel->lab != UASM_LABEL_INVALID; rel++) { + if (rel->addr == addr + && (rel->type == R_MIPS_PC16 + || rel->type == R_MIPS_26)) + return 1; + } + + return 0; +} + +/* Convenience functions for labeled branches. */ +void __init +uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_bltz(p, reg, 0); +} + +void __init +uasm_il_b(u32 **p, struct uasm_reloc **r, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_b(p, 0); +} + +void __init +uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_beqz(p, reg, 0); +} + +void __init +uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_beqzl(p, reg, 0); +} + +void __init +uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_bnez(p, reg, 0); +} + +void __init +uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_bgezl(p, reg, 0); +} + +void __init +uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid) +{ + uasm_r_mips_pc16(r, *p, lid); + uasm_i_bgez(p, reg, 0); +} diff --git a/arch/mips/mm/uasm.h b/arch/mips/mm/uasm.h new file mode 100644 index 000000000000..a10fc1135c76 --- /dev/null +++ b/arch/mips/mm/uasm.h @@ -0,0 +1,192 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer + * Copyright (C) 2005 Maciej W. Rozycki + * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) + */ + +#include <linux/types.h> + +#define Ip_u1u2u3(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) + +#define Ip_u2u1u3(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) + +#define Ip_u3u1u2(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) + +#define Ip_u1u2s3(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) + +#define Ip_u2s3u1(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) + +#define Ip_u2u1s3(op) \ +void __init \ +uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) + +#define Ip_u1u2(op) \ +void __init uasm_i##op(u32 **buf, unsigned int a, unsigned int b) + +#define Ip_u1s2(op) \ +void __init uasm_i##op(u32 **buf, unsigned int a, signed int b) + +#define Ip_u1(op) void __init uasm_i##op(u32 **buf, unsigned int a) + +#define Ip_0(op) void __init uasm_i##op(u32 **buf) + +Ip_u2u1s3(_addiu); +Ip_u3u1u2(_addu); +Ip_u2u1u3(_andi); +Ip_u3u1u2(_and); +Ip_u1u2s3(_beq); +Ip_u1u2s3(_beql); +Ip_u1s2(_bgez); +Ip_u1s2(_bgezl); +Ip_u1s2(_bltz); +Ip_u1s2(_bltzl); +Ip_u1u2s3(_bne); +Ip_u1u2u3(_dmfc0); +Ip_u1u2u3(_dmtc0); +Ip_u2u1s3(_daddiu); +Ip_u3u1u2(_daddu); +Ip_u2u1u3(_dsll); +Ip_u2u1u3(_dsll32); +Ip_u2u1u3(_dsra); +Ip_u2u1u3(_dsrl); +Ip_u2u1u3(_dsrl32); +Ip_u3u1u2(_dsubu); +Ip_0(_eret); +Ip_u1(_j); +Ip_u1(_jal); +Ip_u1(_jr); +Ip_u2s3u1(_ld); +Ip_u2s3u1(_ll); +Ip_u2s3u1(_lld); +Ip_u1s2(_lui); +Ip_u2s3u1(_lw); +Ip_u1u2u3(_mfc0); +Ip_u1u2u3(_mtc0); +Ip_u2u1u3(_ori); +Ip_0(_rfe); +Ip_u2s3u1(_sc); +Ip_u2s3u1(_scd); +Ip_u2s3u1(_sd); +Ip_u2u1u3(_sll); +Ip_u2u1u3(_sra); +Ip_u2u1u3(_srl); +Ip_u3u1u2(_subu); +Ip_u2s3u1(_sw); +Ip_0(_tlbp); +Ip_0(_tlbwi); +Ip_0(_tlbwr); +Ip_u3u1u2(_xor); +Ip_u2u1u3(_xori); + +/* Handle labels. */ +struct uasm_label { + u32 *addr; + int lab; +}; + +void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); +#ifdef CONFIG_64BIT +int __init uasm_in_compat_space_p(long addr); +int __init uasm_rel_highest(long val); +int __init uasm_rel_higher(long val); +#endif +int __init uasm_rel_hi(long val); +int __init uasm_rel_lo(long val); +void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); +void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr); + +#define UASM_L_LA(lb) \ +static inline void __init uasm_l##lb(struct uasm_label **lab, u32 *addr) \ +{ \ + uasm_build_label(lab, addr, label##lb); \ +} + +/* convenience macros for instructions */ +#ifdef CONFIG_64BIT +# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) +# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) +# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) +# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) +# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) +# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) +# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) +# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) +# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) +# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) +# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) +# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) +#else +# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) +# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) +# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) +# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) +# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) +# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) +# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) +# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) +# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) +# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) +# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) +# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) +#endif + +#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) +#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) +#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) +#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) +#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) +#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) +#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) +#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) +#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) + +/* Handle relocations. */ +struct uasm_reloc { + u32 *addr; + unsigned int type; + int lab; +}; + +/* This is zero so we can use zeroed label arrays. */ +#define UASM_LABEL_INVALID 0 + +void __init uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); +void __init +uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); +void __init +uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); +void __init +uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); +void __init +uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first, + u32 *end, u32 *target); +int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); + +/* Convenience functions for labeled branches. */ +void __init +uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void __init uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); +void __init +uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void __init +uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void __init +uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void __init +uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); +void __init +uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); diff --git a/arch/mips/sgi-ip27/ip27-hubio.c b/arch/mips/sgi-ip27/ip27-hubio.c index 524b371f9397..a1fa4abb3f6a 100644 --- a/arch/mips/sgi-ip27/ip27-hubio.c +++ b/arch/mips/sgi-ip27/ip27-hubio.c @@ -168,7 +168,7 @@ static void hub_set_piomode(nasid_t nasid) } /* - * hub_pio_init - PIO-related hub initalization + * hub_pio_init - PIO-related hub initialization * * @hub: hubinfo structure for our hub */ diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 2b649c46631c..028d8a0fdbfd 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -7,6 +7,7 @@ mainmenu "Linux/PA-RISC Kernel Configuration" config PARISC def_bool y + select HAVE_OPROFILE help The PA-RISC microprocessor is designed by Hewlett-Packard and used in many of their workstations & servers (HP9000 700 and 800 series, @@ -205,9 +206,8 @@ config SMP singleprocessor machines. On a singleprocessor machine, the kernel will run faster if you say N here. - See also the <file:Documentation/smp.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available - at <http://www.tldp.org/docs.html#howto>. + See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO + available at <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -272,8 +272,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/parisc/Kconfig.debug" source "security/Kconfig" diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 395bbce64993..e10d25d2d9c9 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -305,7 +305,7 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma, /* save the current process space and pgd */ unsigned long space = mfsp(3), pgd = mfctl(25); - /* we don't mind taking interrups since they may not + /* we don't mind taking interrupts since they may not * do anything with user space, but we can't * be preempted here */ preempt_disable(); diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c index 04848b2b381c..84b9611a9228 100644 --- a/arch/parisc/kernel/hardware.c +++ b/arch/parisc/kernel/hardware.c @@ -1187,7 +1187,7 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = { {HPHW_FIO, 0x005, 0x000A9, 0x00, "AllegroLow Core PCI USB KB"}, {HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI SuperIO RS-232"}, {HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI USB KB"}, - {HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscelaneous PCI Plug-in"}, + {HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscellaneous PCI Plug-in"}, {HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI SuperIO RS-232"}, {HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI USB KB"}, {HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 2ce3806f02e1..58fccc96d003 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -333,7 +333,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, flush_user_icache_range((unsigned long) &frame->tramp[0], (unsigned long) &frame->tramp[TRAMP_SIZE]); - /* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP + /* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP */ diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2bf2f3f53029..d21495f35727 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -42,7 +42,7 @@ config GENERIC_HARDIRQS bool default y -config ARCH_SETS_UP_PER_CPU_AREA +config HAVE_SETUP_PER_CPU_AREA def_bool PPC64 config IRQ_PER_CPU @@ -87,6 +87,8 @@ config ARCH_NO_VIRT_TO_BUS config PPC bool default y + select HAVE_OPROFILE + select HAVE_KPROBES config EARLY_PRINTK bool @@ -151,11 +153,25 @@ config DEFAULT_UIMAGE config REDBOOT bool -config PPC64_SWSUSP +config HIBERNATE_32 bool - depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) + depends on (PPC_PMAC && !SMP) || BROKEN default y +config HIBERNATE_64 + bool + depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL) + default y + +config ARCH_HIBERNATION_POSSIBLE + bool + depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32) + default y + +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 + config PPC_DCR_NATIVE bool default n @@ -240,6 +256,9 @@ config IOMMU_VMERGE Most drivers don't have this problem; it is safe to say Y here. +config IOMMU_HELPER + def_bool PPC64 + config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) @@ -391,6 +410,10 @@ config CMDLINE most cases you will need to specify the root device here. if !44x || BROKEN +config ARCH_WANTS_FREEZER_CONTROL + def_bool y + depends on ADB_PMU + source kernel/power/Kconfig endif @@ -415,25 +438,6 @@ config WANT_DEVICE_TREE bool default n -config DEVICE_TREE - string "Static device tree source file" - depends on WANT_DEVICE_TREE - help - This specifies the device tree source (.dts) file to be - compiled and included when building the bootwrapper. If a - relative filename is given, then it will be relative to - arch/powerpc/boot/dts. If you are not using the bootwrapper, - or do not need to build a dts into the bootwrapper, this - field is ignored. - - For example, this is required when building a cuImage target - for an older U-Boot, which cannot pass a device tree itself. - Such a kernel will not work with a newer U-Boot that tries to - pass a device tree (unless you tell it not to). If your U-Boot - does not mention a device tree in "help bootm", then use the - cuImage target and specify a device tree here. Otherwise, use - the uImage target and leave this field blank. - endmenu config ISA_DMA_API @@ -489,7 +493,7 @@ config PCI bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ || PPC_PS3 || 44x - default y if !40x && !CPM2 && !8xx && !PPC_83xx \ + default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \ && !PPC_85xx && !PPC_86xx default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx @@ -695,8 +699,6 @@ source "arch/powerpc/sysdev/qe_lib/Kconfig" source "lib/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/powerpc/Kconfig.debug" source "security/Kconfig" diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index f70df9b64f8f..6845482f0093 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -151,14 +151,11 @@ core-$(CONFIG_XMON) += arch/powerpc/xmon/ drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ # Default to zImage, override when needed -defaultimage-y := zImage -defaultimage-$(CONFIG_DEFAULT_UIMAGE) := uImage -KBUILD_IMAGE := $(defaultimage-y) -all: $(KBUILD_IMAGE) +all: zImage CPPFLAGS_vmlinux.lds := -Upowerpc -BOOT_TARGETS = zImage zImage.initrd uImage +BOOT_TARGETS = zImage zImage.initrd uImage treeImage.% cuImage.% PHONY += $(BOOT_TARGETS) @@ -180,7 +177,7 @@ define archhelp endef install: vdso_install - $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install + $(Q)$(MAKE) $(build)=$(boot) install vdso_install: ifeq ($(CONFIG_PPC64),y) diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 122a27078998..49797a45416c 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -60,8 +60,9 @@ src-wlib := string.S crt0.S stdio.c main.c \ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \ cuboot-ebony.c treeboot-ebony.c prpmc2800.c \ ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \ - cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \ - fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \ + cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \ + cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \ + fixed-head.S ep88xc.c ep405.c \ cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ cuboot-warp.c cuboot-85xx-cpm2.c src-boot := $(src-wlib) $(src-plat) empty.c @@ -123,6 +124,8 @@ targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds +dtstree := $(srctree)/$(src)/dts + wrapper :=$(srctree)/$(src)/wrapper wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \ $(wrapper) FORCE @@ -181,7 +184,7 @@ quiet_cmd_wrap = WRAP $@ image-$(CONFIG_PPC_PSERIES) += zImage.pseries image-$(CONFIG_PPC_MAPLE) += zImage.pseries image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries -image-$(CONFIG_PPC_PS3) += zImage.ps3 +image-$(CONFIG_PPC_PS3) += zImage-dtb.ps3 image-$(CONFIG_PPC_CELLEB) += zImage.pseries image-$(CONFIG_PPC_CHRP) += zImage.chrp image-$(CONFIG_PPC_EFIKA) += zImage.chrp @@ -191,33 +194,69 @@ image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800 image-$(CONFIG_PPC_ISERIES) += zImage.iseries image-$(CONFIG_DEFAULT_UIMAGE) += uImage -ifneq ($(CONFIG_DEVICE_TREE),"") -image-$(CONFIG_PPC_8xx) += cuImage.8xx -image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc -image-$(CONFIG_EP405) += zImage.ep405 -image-$(CONFIG_8260) += cuImage.pq2 -image-$(CONFIG_EP8248E) += zImage.ep8248e -image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx -image-$(CONFIG_STORCENTER) += cuImage.824x -image-$(CONFIG_PPC_83xx) += cuImage.83xx -image-$(CONFIG_PPC_85xx) += cuImage.85xx -ifeq ($(CONFIG_CPM2),y) -image-$(CONFIG_PPC_85xx) += cuImage.85xx-cpm2 -endif -image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2 +# +# Targets which embed a device tree blob +# +# Theses are default targets to build images which embed device tree blobs. +# They are only required on boards which do not have FDT support in firmware. +# Boards with newish u-boot firmare can use the uImage target above +# + +# Board ports in arch/powerpc/platform/40x/Kconfig +image-$(CONFIG_EP405) += zImage-dtb.ep405 +image-$(CONFIG_WALNUT) += treeImage.walnut + +# Board ports in arch/powerpc/platform/44x/Kconfig image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo image-$(CONFIG_SEQUOIA) += cuImage.sequoia image-$(CONFIG_RAINIER) += cuImage.rainier -image-$(CONFIG_WALNUT) += treeImage.walnut image-$(CONFIG_TAISHAN) += cuImage.taishan image-$(CONFIG_KATMAI) += cuImage.katmai image-$(CONFIG_WARP) += cuImage.warp -endif -ifneq ($(CONFIG_REDBOOT),"") -image-$(CONFIG_PPC_8xx) += zImage.redboot-8xx -endif +# Board ports in arch/powerpc/platform/8xx/Kconfig +image-$(CONFIG_PPC_MPC86XADS) += cuImage.mpc866ads +image-$(CONFIG_PPC_MPC885ADS) += cuImage.mpc885ads +image-$(CONFIG_PPC_EP88XC) += zImage-dtb.ep88xc +image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ + zImage-dtb.adder875-redboot + +# Board ports in arch/powerpc/platform/52xx/Kconfig +image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b + +# Board ports in arch/powerpc/platform/82xx/Kconfig +image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads +image-$(CONFIG_PQ2FADS) += cuImage.pq2fads +image-$(CONFIG_EP8248E) += zImage-dtb.ep8248e + +# Board ports in arch/powerpc/platform/83xx/Kconfig +image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds +image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb +image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \ + cuImage.mpc8349emitxgp +image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds +image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds + +# Board ports in arch/powerpc/platform/85xx/Kconfig +image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads +image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads +image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \ + cuImage.mpc8548cds \ + cuImage.mpc8555cds +image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds +image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \ + cuImage.mpc8572ds +image-$(CONFIG_TQM8540) += cuImage.tqm8540 +image-$(CONFIG_TQM8541) += cuImage.tqm8541 +image-$(CONFIG_TQM8555) += cuImage.tqm8555 +image-$(CONFIG_TQM8560) += cuImage.tqm8560 +image-$(CONFIG_SBC8548) += cuImage.tqm8548 +image-$(CONFIG_SBC8560) += cuImage.tqm8560 + +# Board ports in arch/powerpc/platform/embedded6xx/Kconfig +image-$(CONFIG_STORCENTER) += cuImage.storcenter +image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 # For 32-bit powermacs, build the COFF and miboot images # as well as the ELF images. @@ -233,24 +272,20 @@ targets += $(image-y) $(initrd-y) $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz -# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an -# empty string, define 'dts' to be path to the dts -# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them -ifeq ($(CONFIG_WANT_DEVICE_TREE),y) -ifneq ($(CONFIG_DEVICE_TREE),"") -dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\ - ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%) -endif -endif - # Don't put the ramdisk on the pattern rule; when its missing make will try # the pattern rule with less dependencies that also matches (even with the # hard dependency listed). -$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts) - $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz) +$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) + $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) -$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts) - $(call if_changed,wrap,$*,$(dts)) +$(obj)/zImage.%: vmlinux $(wrapperbits) + $(call if_changed,wrap,$*) + +$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts + $(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz) + +$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts + $(call if_changed,wrap,$*,$(dtstree)/$*.dts) # This cannot be in the root of $(src) as the zImage rule always adds a $(obj) # prefix @@ -260,24 +295,17 @@ $(obj)/vmlinux.strip: vmlinux $(obj)/zImage.iseries: vmlinux $(STRIP) -s -R .comment $< -o $@ -$(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts - $(STRIP) -s -R .comment $< -o vmlinux.strip - $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,) - -$(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz - $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz) - $(obj)/uImage: vmlinux $(wrapperbits) $(call if_changed,wrap,uboot) -$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits) - $(call if_changed,wrap,cuboot-$*,$(dts)) +$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits) + $(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts) -$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits) - $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz) +$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits) + $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz) -$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits) - $(call if_changed,wrap,treeboot-$*,$(dts)) +$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits) + $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts) # If there isn't a platform selected then just strip the vmlinux. ifeq (,$(image-y)) diff --git a/arch/powerpc/boot/cuboot-hpc2.c b/arch/powerpc/boot/cuboot-mpc7448hpc2.c index 1b8953259d75..1b8953259d75 100644 --- a/arch/powerpc/boot/cuboot-hpc2.c +++ b/arch/powerpc/boot/cuboot-mpc7448hpc2.c diff --git a/arch/powerpc/boot/dts/adder875-redboot.dts b/arch/powerpc/boot/dts/adder875-redboot.dts index 930bfb3894eb..28e9cd3d7a21 100644 --- a/arch/powerpc/boot/dts/adder875-redboot.dts +++ b/arch/powerpc/boot/dts/adder875-redboot.dts @@ -151,6 +151,7 @@ compatible = "fsl,mpc875-brg", "fsl,cpm1-brg", "fsl,cpm-brg"; + clock-frequency = <50000000>; reg = <0x9f0 0x10>; }; diff --git a/arch/powerpc/boot/dts/adder875-uboot.dts b/arch/powerpc/boot/dts/adder875-uboot.dts index 0197242dacfb..54fb60ec03e5 100644 --- a/arch/powerpc/boot/dts/adder875-uboot.dts +++ b/arch/powerpc/boot/dts/adder875-uboot.dts @@ -150,6 +150,7 @@ compatible = "fsl,mpc875-brg", "fsl,cpm1-brg", "fsl,cpm-brg"; + clock-frequency = <50000000>; reg = <0x9f0 0x10>; }; diff --git a/arch/powerpc/boot/dts/mpc5121ads.dts b/arch/powerpc/boot/dts/mpc5121ads.dts new file mode 100644 index 000000000000..94ad7b2b241e --- /dev/null +++ b/arch/powerpc/boot/dts/mpc5121ads.dts @@ -0,0 +1,122 @@ +/* + * MPC5121E MDS Device Tree Source + * + * Copyright 2007 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/dts-v1/; + +/ { + model = "mpc5121ads"; + compatible = "fsl,mpc5121ads"; + #address-cells = <1>; + #size-cells = <1>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,5121@0 { + device_type = "cpu"; + reg = <0>; + d-cache-line-size = <0x20>; // 32 bytes + i-cache-line-size = <0x20>; // 32 bytes + d-cache-size = <0x8000>; // L1, 32K + i-cache-size = <0x8000>; // L1, 32K + timebase-frequency = <49500000>;// 49.5 MHz (csb/4) + bus-frequency = <198000000>; // 198 MHz csb bus + clock-frequency = <396000000>; // 396 MHz ppc core + }; + }; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; // 256MB at 0 + }; + + localbus@80000020 { + compatible = "fsl,mpc5121ads-localbus"; + #address-cells = <2>; + #size-cells = <1>; + reg = <0x80000020 0x40>; + + ranges = <0x0 0x0 0xfc000000 0x04000000 + 0x2 0x0 0x82000000 0x00008000>; + + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0x0 0x4000000>; + bank-width = <4>; + device-width = <1>; + }; + + board-control@2,0 { + compatible = "fsl,mpc5121ads-cpld"; + reg = <0x2 0x0 0x8000>; + }; + }; + + soc@80000000 { + compatible = "fsl,mpc5121-immr"; + #address-cells = <1>; + #size-cells = <1>; + #interrupt-cells = <2>; + ranges = <0x0 0x80000000 0x400000>; + reg = <0x80000000 0x400000>; + bus-frequency = <66000000>; // 66 MHz ips bus + + + // IPIC + // interrupts cell = <intr #, sense> + // sense values match linux IORESOURCE_IRQ_* defines: + // sense == 8: Level, low assertion + // sense == 2: Edge, high-to-low change + // + ipic: interrupt-controller@c00 { + compatible = "fsl,mpc5121-ipic", "fsl,ipic"; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <0xc00 0x100>; + }; + + // 512x PSCs are not 52xx PSCs compatible + // PSC3 serial port A aka ttyPSC0 + serial@11300 { + device_type = "serial"; + compatible = "fsl,mpc5121-psc-uart"; + // Logical port assignment needed until driver + // learns to use aliases + port-number = <0>; + cell-index = <3>; + reg = <0x11300 0x100>; + interrupts = <0x28 0x8>; // actually the fifo irq + interrupt-parent = < &ipic >; + }; + + // PSC4 serial port B aka ttyPSC1 + serial@11400 { + device_type = "serial"; + compatible = "fsl,mpc5121-psc-uart"; + // Logical port assignment needed until driver + // learns to use aliases + port-number = <1>; + cell-index = <4>; + reg = <0x11400 0x100>; + interrupts = <0x28 0x8>; // actually the fifo irq + interrupt-parent = < &ipic >; + }; + + pscsfifo@11f00 { + compatible = "fsl,mpc5121-psc-fifo"; + reg = <0x11f00 0x100>; + interrupts = <0x28 0x8>; + interrupt-parent = < &ipic >; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/boot/dts/mpc8313erdb.dts index 2d6653fe72ff..e1f0dca8ac39 100644 --- a/arch/powerpc/boot/dts/mpc8313erdb.dts +++ b/arch/powerpc/boot/dts/mpc8313erdb.dts @@ -118,6 +118,10 @@ interrupts = <14 0x8>; interrupt-parent = <&ipic>; dfsrr; + rtc@68 { + compatible = "dallas,ds1339"; + reg = <0x68>; + }; }; i2c@3100 { diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts index b582032ba3d6..d7a1ececa30f 100644 --- a/arch/powerpc/boot/dts/mpc8315erdb.dts +++ b/arch/powerpc/boot/dts/mpc8315erdb.dts @@ -96,7 +96,7 @@ #address-cells = <1>; #size-cells = <1>; device_type = "soc"; - compatible = "simple-bus"; + compatible = "fsl,mpc8315-immr", "simple-bus"; ranges = <0 0xe0000000 0x00100000>; reg = <0xe0000000 0x00000200>; bus-frequency = <0>; diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts index 7480edae85ed..0199c5c548d8 100644 --- a/arch/powerpc/boot/dts/mpc834x_mds.dts +++ b/arch/powerpc/boot/dts/mpc834x_mds.dts @@ -332,7 +332,7 @@ 0xc000 0x0 0x0 0x3 &ipic 23 0x8 0xc000 0x0 0x0 0x4 &ipic 20 0x8>; interrupt-parent = <&ipic>; - interrupts = <66 0x8>; + interrupts = <67 0x8>; bus-range = <0 0>; ranges = <0x02000000 0x0 0xb0000000 0xb0000000 0x0 0x10000000 0x42000000 0x0 0xa0000000 0xa0000000 0x0 0x10000000 diff --git a/arch/powerpc/boot/dts/mpc8572ds.dts b/arch/powerpc/boot/dts/mpc8572ds.dts index 813c259abbe5..db37214aee37 100644 --- a/arch/powerpc/boot/dts/mpc8572ds.dts +++ b/arch/powerpc/boot/dts/mpc8572ds.dts @@ -42,6 +42,18 @@ bus-frequency = <0>; clock-frequency = <0>; }; + + PowerPC,8572@1 { + device_type = "cpu"; + reg = <1>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; + bus-frequency = <0>; + clock-frequency = <0>; + }; }; memory { diff --git a/arch/powerpc/boot/dts/mpc885ads.dts b/arch/powerpc/boot/dts/mpc885ads.dts index 8848e637293e..d84a012c2aaf 100644 --- a/arch/powerpc/boot/dts/mpc885ads.dts +++ b/arch/powerpc/boot/dts/mpc885ads.dts @@ -166,6 +166,7 @@ compatible = "fsl,mpc885-brg", "fsl,cpm1-brg", "fsl,cpm-brg"; + clock-frequency = <0>; reg = <9f0 10>; }; diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts index d9046c1adcbe..5c13d46f441d 100644 --- a/arch/powerpc/boot/dts/sequoia.dts +++ b/arch/powerpc/boot/dts/sequoia.dts @@ -138,6 +138,14 @@ interrupts = <15 8>; }; + USB0: ehci@e0000300 { + compatible = "ibm,usb-ehci-440epx", "usb-ehci"; + interrupt-parent = <&UIC0>; + interrupts = <1a 4>; + reg = <0 e0000300 90 0 e0000390 70>; + big-endian; + }; + POB0: opb { compatible = "ibm,opb-440epx", "ibm,opb"; #address-cells = <1>; diff --git a/arch/powerpc/boot/dts/storcenter.dts b/arch/powerpc/boot/dts/storcenter.dts index 2204874ac5f3..5893816c0bce 100644 --- a/arch/powerpc/boot/dts/storcenter.dts +++ b/arch/powerpc/boot/dts/storcenter.dts @@ -15,7 +15,7 @@ / { model = "StorCenter"; - compatible = "storcenter"; + compatible = "iomega,storcenter"; #address-cells = <1>; #size-cells = <1>; @@ -62,12 +62,12 @@ #size-cells = <0>; compatible = "fsl-i2c"; reg = <0x3000 0x100>; - interrupts = <5 2>; + interrupts = <17 2>; interrupt-parent = <&mpic>; rtc@68 { compatible = "dallas,ds1337"; - reg = <68>; + reg = <0x68>; }; }; @@ -78,7 +78,7 @@ reg = <0x4500 0x20>; clock-frequency = <97553800>; /* Hz */ current-speed = <115200>; - interrupts = <9 2>; + interrupts = <25 2>; interrupt-parent = <&mpic>; }; @@ -89,7 +89,7 @@ reg = <0x4600 0x20>; clock-frequency = <97553800>; /* Hz */ current-speed = <9600>; - interrupts = <10 2>; + interrupts = <26 2>; interrupt-parent = <&mpic>; }; @@ -136,6 +136,6 @@ }; chosen { - linux,stdout-path = "/soc/serial@4500"; + linux,stdout-path = &serial0; }; }; diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index 763a0c46f441..c3178155311b 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -158,6 +158,29 @@ miboot|uboot) cuboot*) binary=y gzip= + case "$platform" in + *-mpc885ads|*-adder875*|*-ep88xc) + platformo=$object/cuboot-8xx.o + ;; + *5200*|*-motionpro) + platformo=$object/cuboot-52xx.o + ;; + *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter) + platformo=$object/cuboot-pq2.o + ;; + *-mpc824*) + platformo=$object/cuboot-824x.o + ;; + *-mpc83*) + platformo=$object/cuboot-83xx.o + ;; + *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555*) + platformo=$object/cuboot-85xx-cpm2.o + ;; + *-mpc85*) + platformo=$object/cuboot-85xx.o + ;; + esac ;; ps3) platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o" diff --git a/arch/powerpc/configs/mpc83xx_defconfig b/arch/powerpc/configs/mpc83xx_defconfig index 31bdbf3f7566..a9807f083bc4 100644 --- a/arch/powerpc/configs/mpc83xx_defconfig +++ b/arch/powerpc/configs/mpc83xx_defconfig @@ -186,7 +186,7 @@ CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT is not set CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set -# CONFIG_MATH_EMULATION is not set +CONFIG_MATH_EMULATION=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y @@ -416,14 +416,14 @@ CONFIG_PHYLIB=y # MII PHY device drivers # CONFIG_MARVELL_PHY=y -# CONFIG_DAVICOM_PHY is not set +CONFIG_DAVICOM_PHY=y # CONFIG_QSEMI_PHY is not set # CONFIG_LXT_PHY is not set # CONFIG_CICADA_PHY is not set -# CONFIG_VITESSE_PHY is not set +CONFIG_VITESSE_PHY=y # CONFIG_SMSC_PHY is not set # CONFIG_BROADCOM_PHY is not set -# CONFIG_ICPLUS_PHY is not set +CONFIG_ICPLUS_PHY=y # CONFIG_FIXED_PHY is not set # CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y @@ -436,7 +436,7 @@ CONFIG_MII=y CONFIG_NETDEV_1000=y CONFIG_GIANFAR=y # CONFIG_GFAR_NAPI is not set -# CONFIG_UCC_GETH is not set +CONFIG_UCC_GETH=y CONFIG_NETDEV_10000=y # diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index ed083feaf6f9..e6e49289f788 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -22,6 +22,7 @@ #include <linux/mman.h> #include <linux/mm.h> #include <linux/suspend.h> +#include <linux/hrtimer.h> #ifdef CONFIG_PPC64 #include <linux/time.h> #include <linux/hardirq.h> @@ -312,7 +313,7 @@ int main(void) DEFINE(CLOCK_REALTIME, CLOCK_REALTIME); DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC); DEFINE(NSEC_PER_SEC, NSEC_PER_SEC); - DEFINE(CLOCK_REALTIME_RES, TICK_NSEC); + DEFINE(CLOCK_REALTIME_RES, (KTIME_MONOTONIC_RES).tv64); #ifdef CONFIG_BUG DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry)); diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index a4c2771b5e62..2a8f5cc5184f 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -959,6 +959,9 @@ static struct cpu_spec __initdata cpu_specs[] = { .icache_bsize = 32, .dcache_bsize = 32, .cpu_setup = __setup_cpu_603, + .num_pmcs = 4, + .oprofile_cpu_type = "ppc/e300", + .oprofile_type = PPC_OPROFILE_FSL_EMB, .platform = "ppc603", }, { /* e300c4 (e300c1, plus one IU) */ @@ -971,6 +974,9 @@ static struct cpu_spec __initdata cpu_specs[] = { .dcache_bsize = 32, .cpu_setup = __setup_cpu_603, .machine_check = machine_check_generic, + .num_pmcs = 4, + .oprofile_cpu_type = "ppc/e300", + .oprofile_type = PPC_OPROFILE_FSL_EMB, .platform = "ppc603", }, { /* default match, we assume split I/D cache & TB (non-601)... */ @@ -1435,7 +1441,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .dcache_bsize = 32, .num_pmcs = 4, .oprofile_cpu_type = "ppc/e500", - .oprofile_type = PPC_OPROFILE_BOOKE, + .oprofile_type = PPC_OPROFILE_FSL_EMB, .machine_check = machine_check_e500, .platform = "ppc8540", }, @@ -1453,7 +1459,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .dcache_bsize = 32, .num_pmcs = 4, .oprofile_cpu_type = "ppc/e500", - .oprofile_type = PPC_OPROFILE_BOOKE, + .oprofile_type = PPC_OPROFILE_FSL_EMB, .machine_check = machine_check_e500, .platform = "ppc8548", }, diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 84239076a5b8..3a317cb0636a 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -31,8 +31,8 @@ static inline unsigned long device_to_mask(struct device *dev) static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { - return iommu_alloc_coherent(dev->archdata.dma_data, size, dma_handle, - device_to_mask(dev), flag, + return iommu_alloc_coherent(dev, dev->archdata.dma_data, size, + dma_handle, device_to_mask(dev), flag, dev->archdata.numa_node); } @@ -52,7 +52,7 @@ static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { - return iommu_map_single(dev->archdata.dma_data, vaddr, size, + return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size, device_to_mask(dev), direction); } @@ -68,7 +68,7 @@ static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle, static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist, int nelems, enum dma_data_direction direction) { - return iommu_map_sg(dev->archdata.dma_data, sglist, nelems, + return iommu_map_sg(dev, sglist, nelems, device_to_mask(dev), direction); } diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index a3c406aca664..8f1f4e539c4b 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -31,6 +31,7 @@ #include <linux/string.h> #include <linux/dma-mapping.h> #include <linux/bitops.h> +#include <linux/iommu-helper.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/iommu.h> @@ -81,17 +82,19 @@ static int __init setup_iommu(char *str) __setup("protect4gb=", setup_protect4gb); __setup("iommu=", setup_iommu); -static unsigned long iommu_range_alloc(struct iommu_table *tbl, +static unsigned long iommu_range_alloc(struct device *dev, + struct iommu_table *tbl, unsigned long npages, unsigned long *handle, unsigned long mask, unsigned int align_order) { - unsigned long n, end, i, start; + unsigned long n, end, start; unsigned long limit; int largealloc = npages > 15; int pass = 0; unsigned long align_mask; + unsigned long boundary_size; align_mask = 0xffffffffffffffffl >> (64 - align_order); @@ -136,14 +139,17 @@ static unsigned long iommu_range_alloc(struct iommu_table *tbl, start &= mask; } - n = find_next_zero_bit(tbl->it_map, limit, start); - - /* Align allocation */ - n = (n + align_mask) & ~align_mask; - - end = n + npages; + if (dev) + boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, + 1 << IOMMU_PAGE_SHIFT); + else + boundary_size = ALIGN(1UL << 32, 1 << IOMMU_PAGE_SHIFT); + /* 4GB boundary for iseries_hv_alloc and iseries_hv_map */ - if (unlikely(end >= limit)) { + n = iommu_area_alloc(tbl->it_map, limit, start, npages, + tbl->it_offset, boundary_size >> IOMMU_PAGE_SHIFT, + align_mask); + if (n == -1) { if (likely(pass < 2)) { /* First failure, just rescan the half of the table. * Second failure, rescan the other half of the table. @@ -158,14 +164,7 @@ static unsigned long iommu_range_alloc(struct iommu_table *tbl, } } - for (i = n; i < end; i++) - if (test_bit(i, tbl->it_map)) { - start = i+1; - goto again; - } - - for (i = n; i < end; i++) - __set_bit(i, tbl->it_map); + end = n + npages; /* Bump the hint to a new block for small allocs. */ if (largealloc) { @@ -184,16 +183,17 @@ static unsigned long iommu_range_alloc(struct iommu_table *tbl, return n; } -static dma_addr_t iommu_alloc(struct iommu_table *tbl, void *page, - unsigned int npages, enum dma_data_direction direction, - unsigned long mask, unsigned int align_order) +static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, + void *page, unsigned int npages, + enum dma_data_direction direction, + unsigned long mask, unsigned int align_order) { unsigned long entry, flags; dma_addr_t ret = DMA_ERROR_CODE; spin_lock_irqsave(&(tbl->it_lock), flags); - entry = iommu_range_alloc(tbl, npages, NULL, mask, align_order); + entry = iommu_range_alloc(dev, tbl, npages, NULL, mask, align_order); if (unlikely(entry == DMA_ERROR_CODE)) { spin_unlock_irqrestore(&(tbl->it_lock), flags); @@ -224,7 +224,6 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, unsigned int npages) { unsigned long entry, free_entry; - unsigned long i; entry = dma_addr >> IOMMU_PAGE_SHIFT; free_entry = entry - tbl->it_offset; @@ -246,9 +245,7 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, } ppc_md.tce_free(tbl, entry, npages); - - for (i = 0; i < npages; i++) - __clear_bit(free_entry+i, tbl->it_map); + iommu_area_free(tbl->it_map, free_entry, npages); } static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, @@ -270,16 +267,18 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, spin_unlock_irqrestore(&(tbl->it_lock), flags); } -int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, +int iommu_map_sg(struct device *dev, struct scatterlist *sglist, int nelems, unsigned long mask, enum dma_data_direction direction) { + struct iommu_table *tbl = dev->archdata.dma_data; dma_addr_t dma_next = 0, dma_addr; unsigned long flags; struct scatterlist *s, *outs, *segstart; int outcount, incount, i; unsigned int align; unsigned long handle; + unsigned int max_seg_size; BUG_ON(direction == DMA_NONE); @@ -298,6 +297,7 @@ int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, spin_lock_irqsave(&(tbl->it_lock), flags); + max_seg_size = dma_get_max_seg_size(dev); for_each_sg(sglist, s, nelems, i) { unsigned long vaddr, npages, entry, slen; @@ -314,7 +314,7 @@ int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, if (IOMMU_PAGE_SHIFT < PAGE_SHIFT && slen >= PAGE_SIZE && (vaddr & ~PAGE_MASK) == 0) align = PAGE_SHIFT - IOMMU_PAGE_SHIFT; - entry = iommu_range_alloc(tbl, npages, &handle, + entry = iommu_range_alloc(dev, tbl, npages, &handle, mask >> IOMMU_PAGE_SHIFT, align); DBG(" - vaddr: %lx, size: %lx\n", vaddr, slen); @@ -344,7 +344,8 @@ int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, /* We cannot merge if: * - allocated dma_addr isn't contiguous to previous allocation */ - if (novmerge || (dma_addr != dma_next)) { + if (novmerge || (dma_addr != dma_next) || + (outs->dma_length + s->length > max_seg_size)) { /* Can't merge: create a new segment */ segstart = s; outcount++; @@ -452,9 +453,6 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) { unsigned long sz; - unsigned long start_index, end_index; - unsigned long entries_per_4g; - unsigned long index; static int welcomed = 0; struct page *page; @@ -476,6 +474,7 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) #ifdef CONFIG_CRASH_DUMP if (ppc_md.tce_get) { + unsigned long index; unsigned long tceval; unsigned long tcecount = 0; @@ -506,23 +505,6 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) ppc_md.tce_free(tbl, tbl->it_offset, tbl->it_size); #endif - /* - * DMA cannot cross 4 GB boundary. Mark last entry of each 4 - * GB chunk as reserved. - */ - if (protect4gb) { - entries_per_4g = 0x100000000l >> IOMMU_PAGE_SHIFT; - - /* Mark the last bit before a 4GB boundary as used */ - start_index = tbl->it_offset | (entries_per_4g - 1); - start_index -= tbl->it_offset; - - end_index = tbl->it_size; - - for (index = start_index; index < end_index - 1; index += entries_per_4g) - __set_bit(index, tbl->it_map); - } - if (!welcomed) { printk(KERN_INFO "IOMMU table initialized, virtual merging %s\n", novmerge ? "disabled" : "enabled"); @@ -570,9 +552,9 @@ void iommu_free_table(struct iommu_table *tbl, const char *node_name) * need not be page aligned, the dma_addr_t returned will point to the same * byte within the page as vaddr. */ -dma_addr_t iommu_map_single(struct iommu_table *tbl, void *vaddr, - size_t size, unsigned long mask, - enum dma_data_direction direction) +dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl, + void *vaddr, size_t size, unsigned long mask, + enum dma_data_direction direction) { dma_addr_t dma_handle = DMA_ERROR_CODE; unsigned long uaddr; @@ -589,7 +571,7 @@ dma_addr_t iommu_map_single(struct iommu_table *tbl, void *vaddr, ((unsigned long)vaddr & ~PAGE_MASK) == 0) align = PAGE_SHIFT - IOMMU_PAGE_SHIFT; - dma_handle = iommu_alloc(tbl, vaddr, npages, direction, + dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction, mask >> IOMMU_PAGE_SHIFT, align); if (dma_handle == DMA_ERROR_CODE) { if (printk_ratelimit()) { @@ -621,8 +603,9 @@ void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, * Returns the virtual address of the buffer and sets dma_handle * to the dma address (mapping) of the first page. */ -void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size, - dma_addr_t *dma_handle, unsigned long mask, gfp_t flag, int node) +void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl, + size_t size, dma_addr_t *dma_handle, + unsigned long mask, gfp_t flag, int node) { void *ret = NULL; dma_addr_t mapping; @@ -656,7 +639,7 @@ void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size, /* Set up tces to cover the allocated range */ nio_pages = size >> IOMMU_PAGE_SHIFT; io_order = get_iommu_order(size); - mapping = iommu_alloc(tbl, ret, nio_pages, DMA_BIDIRECTIONAL, + mapping = iommu_alloc(dev, tbl, ret, nio_pages, DMA_BIDIRECTIONAL, mask >> IOMMU_PAGE_SHIFT, io_order); if (mapping == DMA_ERROR_CODE) { free_pages((unsigned long)ret, order); diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 76b862bd1fe9..61dd17449ddc 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -36,7 +36,8 @@ static struct legacy_serial_info { static struct __initdata of_device_id parents[] = { {.type = "soc",}, {.type = "tsi-bridge",}, - {.type = "opb", .compatible = "ibm,opb",}, + {.type = "opb", }, + {.compatible = "ibm,opb",}, {.compatible = "simple-bus",}, {.compatible = "wrs,epld-localbus",}, }; diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c index ea04e0ab3f2f..0516e2d3e02e 100644 --- a/arch/powerpc/kernel/pmc.c +++ b/arch/powerpc/kernel/pmc.c @@ -26,7 +26,7 @@ static void dummy_perf(struct pt_regs *regs) { -#if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200) +#if defined(CONFIG_FSL_EMB_PERFMON) mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE); #elif defined(CONFIG_PPC64) || defined(CONFIG_6xx) if (cur_cpu_spec->pmc_type == PPC_PMC_IBM) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 848a20475db8..4b5b7ff4f78b 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -54,7 +54,7 @@ #endif #include <asm/kexec.h> -#ifdef CONFIG_DEBUGGER +#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) int (*__debugger)(struct pt_regs *regs); int (*__debugger_ipi)(struct pt_regs *regs); int (*__debugger_bpt)(struct pt_regs *regs); diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index f0bad7070fb5..f98867252ee2 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -176,7 +176,7 @@ static void __devinit vio_dev_release(struct device *dev) * Returns a pointer to the created vio_dev or NULL if node has * NULL device_type or compatible fields. */ -struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) +struct vio_dev *vio_register_device_node(struct device_node *of_node) { struct vio_dev *viodev; const unsigned int *unit_address; diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index e8122447f019..c7d7bd43a251 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -483,7 +483,12 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, */ _tlbie(address, 0 /* 8xx doesn't care about PID */); #endif - if (!PageReserved(page) + /* The _PAGE_USER test should really be _PAGE_EXEC, but + * older glibc versions execute some code from no-exec + * pages, which for now we are supporting. If exec-only + * pages are ever implemented, this will have to change. + */ + if (!PageReserved(page) && (pte_val(pte) & _PAGE_USER) && !test_bit(PG_arch_1, &page->flags)) { if (vma->vm_mm == current->active_mm) { __flush_dcache_icache((void *) address); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index c12adc3ddffd..e9139d267ea4 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -24,6 +24,8 @@ static int numa_enabled = 1; +static char *cmdline __initdata; + static int numa_debug; #define dbg(args...) if (numa_debug) { printk(KERN_INFO args); } @@ -39,6 +41,53 @@ static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES]; static int min_common_depth; static int n_mem_addr_cells, n_mem_size_cells; +static int __cpuinit fake_numa_create_new_node(unsigned long end_pfn, + unsigned int *nid) +{ + unsigned long long mem; + char *p = cmdline; + static unsigned int fake_nid; + static unsigned long long curr_boundary; + + /* + * Modify node id, iff we started creating NUMA nodes + * We want to continue from where we left of the last time + */ + if (fake_nid) + *nid = fake_nid; + /* + * In case there are no more arguments to parse, the + * node_id should be the same as the last fake node id + * (we've handled this above). + */ + if (!p) + return 0; + + mem = memparse(p, &p); + if (!mem) + return 0; + + if (mem < curr_boundary) + return 0; + + curr_boundary = mem; + + if ((end_pfn << PAGE_SHIFT) > mem) { + /* + * Skip commas and spaces + */ + while (*p == ',' || *p == ' ' || *p == '\t') + p++; + + cmdline = p; + fake_nid++; + *nid = fake_nid; + dbg("created new fake_node with id %d\n", fake_nid); + return 1; + } + return 0; +} + static void __cpuinit map_cpu_to_node(int cpu, int node) { numa_cpu_lookup_table[cpu] = node; @@ -344,6 +393,9 @@ static void __init parse_drconf_memory(struct device_node *memory) if (nid == 0xffff || nid >= MAX_NUMNODES) nid = default_nid; } + + fake_numa_create_new_node(((start + lmb_size) >> PAGE_SHIFT), + &nid); node_set_online(nid); size = numa_enforce_memory_limit(start, lmb_size); @@ -429,6 +481,8 @@ new_range: nid = of_node_to_nid_single(memory); if (nid < 0) nid = default_nid; + + fake_numa_create_new_node(((start + size) >> PAGE_SHIFT), &nid); node_set_online(nid); if (!(size = numa_enforce_memory_limit(start, size))) { @@ -461,7 +515,7 @@ static void __init setup_nonnuma(void) unsigned long top_of_ram = lmb_end_of_DRAM(); unsigned long total_ram = lmb_phys_mem_size(); unsigned long start_pfn, end_pfn; - unsigned int i; + unsigned int i, nid = 0; printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n", top_of_ram, total_ram); @@ -471,9 +525,11 @@ static void __init setup_nonnuma(void) for (i = 0; i < lmb.memory.cnt; ++i) { start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT; end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i); - add_active_range(0, start_pfn, end_pfn); + + fake_numa_create_new_node(end_pfn, &nid); + add_active_range(nid, start_pfn, end_pfn); + node_set_online(nid); } - node_set_online(0); } void __init dump_numa_cpu_topology(void) @@ -702,6 +758,10 @@ static int __init early_numa(char *p) if (strstr(p, "debug")) numa_debug = 1; + p = strstr(p, "fake="); + if (p) + cmdline = p + strlen("fake="); + return 0; } early_param("numa", early_numa); diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 64488723162a..f80f90c4d58b 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -86,7 +86,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) return ret; } -void pgd_free(pgd_t *pgd) +void pgd_free(struct mm_struct *mm, pgd_t *pgd) { free_pages((unsigned long)pgd, PGDIR_ORDER); } @@ -123,7 +123,7 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) return ptepage; } -void pte_free_kernel(pte_t *pte) +void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { #ifdef CONFIG_SMP hash_page_sync(); @@ -131,7 +131,7 @@ void pte_free_kernel(pte_t *pte) free_page((unsigned long)pte); } -void pte_free(struct page *ptepage) +void pte_free(struct mm_struct *mm, struct page *ptepage) { #ifdef CONFIG_SMP hash_page_sync(); diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile index c5f64c3bd668..2ef6b0dddd8c 100644 --- a/arch/powerpc/oprofile/Makefile +++ b/arch/powerpc/oprofile/Makefile @@ -15,5 +15,5 @@ oprofile-$(CONFIG_OPROFILE_CELL) += op_model_cell.o \ cell/spu_profiler.o cell/vma_map.o \ cell/spu_task_sync.o oprofile-$(CONFIG_PPC64) += op_model_rs64.o op_model_power4.o op_model_pa6t.o -oprofile-$(CONFIG_FSL_BOOKE) += op_model_fsl_booke.o +oprofile-$(CONFIG_FSL_EMB_PERFMON) += op_model_fsl_emb.o oprofile-$(CONFIG_6xx) += op_model_7450.o diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c index a28cce1d6c24..4908dc98f9ca 100644 --- a/arch/powerpc/oprofile/common.c +++ b/arch/powerpc/oprofile/common.c @@ -202,9 +202,9 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) model = &op_model_7450; break; #endif -#ifdef CONFIG_FSL_BOOKE - case PPC_OPROFILE_BOOKE: - model = &op_model_fsl_booke; +#if defined(CONFIG_FSL_EMB_PERFMON) + case PPC_OPROFILE_FSL_EMB: + model = &op_model_fsl_emb; break; #endif default: diff --git a/arch/powerpc/oprofile/op_model_fsl_booke.c b/arch/powerpc/oprofile/op_model_fsl_emb.c index 183a28bb1812..91596f6ba1f4 100644 --- a/arch/powerpc/oprofile/op_model_fsl_booke.c +++ b/arch/powerpc/oprofile/op_model_fsl_emb.c @@ -1,7 +1,5 @@ /* - * arch/powerpc/oprofile/op_model_fsl_booke.c - * - * Freescale Book-E oprofile support, based on ppc64 oprofile support + * Freescale Embedded oprofile support, based on ppc64 oprofile support * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM * * Copyright (c) 2004 Freescale Semiconductor, Inc @@ -22,7 +20,7 @@ #include <asm/system.h> #include <asm/processor.h> #include <asm/cputable.h> -#include <asm/reg_booke.h> +#include <asm/reg_fsl_emb.h> #include <asm/page.h> #include <asm/pmc.h> #include <asm/oprofile_impl.h> @@ -244,7 +242,7 @@ static void dump_pmcs(void) mfpmr(PMRN_PMLCA3), mfpmr(PMRN_PMLCB3)); } -static int fsl_booke_cpu_setup(struct op_counter_config *ctr) +static int fsl_emb_cpu_setup(struct op_counter_config *ctr) { int i; @@ -262,7 +260,7 @@ static int fsl_booke_cpu_setup(struct op_counter_config *ctr) return 0; } -static int fsl_booke_reg_setup(struct op_counter_config *ctr, +static int fsl_emb_reg_setup(struct op_counter_config *ctr, struct op_system_config *sys, int num_ctrs) { @@ -281,7 +279,7 @@ static int fsl_booke_reg_setup(struct op_counter_config *ctr, return 0; } -static int fsl_booke_start(struct op_counter_config *ctr) +static int fsl_emb_start(struct op_counter_config *ctr) { int i; @@ -315,7 +313,7 @@ static int fsl_booke_start(struct op_counter_config *ctr) return 0; } -static void fsl_booke_stop(void) +static void fsl_emb_stop(void) { /* freeze counters */ pmc_stop_ctrs(); @@ -329,7 +327,7 @@ static void fsl_booke_stop(void) } -static void fsl_booke_handle_interrupt(struct pt_regs *regs, +static void fsl_emb_handle_interrupt(struct pt_regs *regs, struct op_counter_config *ctr) { unsigned long pc; @@ -362,10 +360,10 @@ static void fsl_booke_handle_interrupt(struct pt_regs *regs, pmc_start_ctrs(1); } -struct op_powerpc_model op_model_fsl_booke = { - .reg_setup = fsl_booke_reg_setup, - .cpu_setup = fsl_booke_cpu_setup, - .start = fsl_booke_start, - .stop = fsl_booke_stop, - .handle_interrupt = fsl_booke_handle_interrupt, +struct op_powerpc_model op_model_fsl_emb = { + .reg_setup = fsl_emb_reg_setup, + .cpu_setup = fsl_emb_cpu_setup, + .start = fsl_emb_start, + .stop = fsl_emb_stop, + .handle_interrupt = fsl_emb_handle_interrupt, }; diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index 74f31177e47a..a9260e21451e 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -72,6 +72,7 @@ config WALNUT default y select 405GP select PCI + select OF_RTC help This option enables support for the IBM PPC405GP evaluation board. diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c index 5d9edd917f92..b8b257efeb77 100644 --- a/arch/powerpc/platforms/40x/walnut.c +++ b/arch/powerpc/platforms/40x/walnut.c @@ -18,6 +18,7 @@ #include <linux/init.h> #include <linux/of_platform.h> +#include <linux/rtc.h> #include <asm/machdep.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index 8f01563dbd2a..da5b7b7599db 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -137,7 +137,7 @@ static int __init pika_dtm_start(void) } of_node_put(np); - fpga = ioremap(res.start + 0x20, 4); + fpga = ioremap(res.start, 0x24); if (fpga == NULL) return -ENOENT; diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig new file mode 100644 index 000000000000..c6fa49e23dc0 --- /dev/null +++ b/arch/powerpc/platforms/512x/Kconfig @@ -0,0 +1,20 @@ +config PPC_MPC512x + bool + select FSL_SOC + select IPIC + default n + +config PPC_MPC5121 + bool + select PPC_MPC512x + default n + +config MPC5121_ADS + bool "Freescale MPC5121E ADS" + depends on PPC_MULTIPLATFORM && PPC32 + select DEFAULT_UIMAGE + select WANT_DEVICE_TREE + select PPC_MPC5121 + help + This option enables support for the MPC5121E ADS board. + default n diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile new file mode 100644 index 000000000000..232c89f2039a --- /dev/null +++ b/arch/powerpc/platforms/512x/Makefile @@ -0,0 +1,4 @@ +# +# Makefile for the Freescale PowerPC 512x linux kernel. +# +obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c new file mode 100644 index 000000000000..50bd3a319022 --- /dev/null +++ b/arch/powerpc/platforms/512x/mpc5121_ads.c @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007 + * + * Description: + * MPC5121 ADS board setup + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/of_platform.h> + +#include <asm/machdep.h> +#include <asm/ipic.h> +#include <asm/prom.h> +#include <asm/time.h> + +/** + * mpc512x_find_ips_freq - Find the IPS bus frequency for a device + * @node: device node + * + * Returns IPS bus frequency, or 0 if the bus frequency cannot be found. + */ +unsigned long +mpc512x_find_ips_freq(struct device_node *node) +{ + struct device_node *np; + const unsigned int *p_ips_freq = NULL; + + of_node_get(node); + while (node) { + p_ips_freq = of_get_property(node, "bus-frequency", NULL); + if (p_ips_freq) + break; + + np = of_get_parent(node); + of_node_put(node); + node = np; + } + if (node) + of_node_put(node); + + return p_ips_freq ? *p_ips_freq : 0; +} +EXPORT_SYMBOL(mpc512x_find_ips_freq); + +static struct of_device_id __initdata of_bus_ids[] = { + { .name = "soc", }, + { .name = "localbus", }, + {}, +}; + +static void __init mpc5121_ads_declare_of_platform_devices(void) +{ + /* Find every child of the SOC node and add it to of_platform */ + if (of_platform_bus_probe(NULL, of_bus_ids, NULL)) + printk(KERN_ERR __FILE__ ": " + "Error while probing of_platform bus\n"); +} + +static void __init mpc5121_ads_init_IRQ(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,ipic"); + if (!np) + return; + + ipic_init(np, 0); + of_node_put(np); + + /* + * Initialize the default interrupt mapping priorities, + * in case the boot rom changed something on us. + */ + ipic_set_default_priority(); +} + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init mpc5121_ads_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,mpc5121ads"); +} + +define_machine(mpc5121_ads) { + .name = "MPC5121 ADS", + .probe = mpc5121_ads_probe, + .init = mpc5121_ads_declare_of_platform_devices, + .init_IRQ = mpc5121_ads_init_IRQ, + .get_irq = ipic_get_irq, + .calibrate_decr = generic_calibrate_decr, +}; diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c index c0f13e8deb0b..41c7fd91e99e 100644 --- a/arch/powerpc/platforms/52xx/lite5200_pm.c +++ b/arch/powerpc/platforms/52xx/lite5200_pm.c @@ -31,7 +31,7 @@ static int lite5200_pm_valid(suspend_state_t state) } } -static int lite5200_pm_set_target(suspend_state_t state) +static int lite5200_pm_begin(suspend_state_t state) { if (lite5200_pm_valid(state)) { lite5200_pm_target_state = state; @@ -219,12 +219,18 @@ static void lite5200_pm_finish(void) mpc52xx_pm_finish(); } +static void lite5200_pm_end(void) +{ + lite5200_pm_target_state = PM_SUSPEND_ON; +} + static struct platform_suspend_ops lite5200_pm_ops = { .valid = lite5200_pm_valid, - .set_target = lite5200_pm_set_target, + .begin = lite5200_pm_begin, .prepare = lite5200_pm_prepare, .enter = lite5200_pm_enter, .finish = lite5200_pm_finish, + .end = lite5200_pm_end, }; int __init lite5200_pm_init(void) diff --git a/arch/powerpc/platforms/82xx/mpc8272_ads.c b/arch/powerpc/platforms/82xx/mpc8272_ads.c index 3fce6b375dbc..7d3018751988 100644 --- a/arch/powerpc/platforms/82xx/mpc8272_ads.c +++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c @@ -134,13 +134,12 @@ static void __init mpc8272_ads_setup_arch(void) } bcsr = of_iomap(np, 0); + of_node_put(np); if (!bcsr) { printk(KERN_ERR "Cannot map BCSR registers\n"); return; } - of_node_put(np); - clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN); setbits32(&bcsr[1], BCSR1_FETH_RST); diff --git a/arch/powerpc/platforms/82xx/pq2fads.c b/arch/powerpc/platforms/82xx/pq2fads.c index 68196e349994..e1dceeec4994 100644 --- a/arch/powerpc/platforms/82xx/pq2fads.c +++ b/arch/powerpc/platforms/82xx/pq2fads.c @@ -130,13 +130,12 @@ static void __init pq2fads_setup_arch(void) } bcsr = of_iomap(np, 0); + of_node_put(np); if (!bcsr) { printk(KERN_ERR "Cannot map BCSR registers\n"); return; } - of_node_put(np); - /* Enable the serial and ethernet ports */ clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN); diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c index 9f0fd88b2b1f..e7f706b624fe 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c @@ -101,7 +101,7 @@ static void __init mpc832x_rdb_setup_arch(void) #ifdef CONFIG_QUICC_ENGINE qe_reset(); - if ((np = of_find_node_by_name(np, "par_io")) != NULL) { + if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) { par_io_init(np); of_node_put(np); diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h index 88bb748aff0d..68065e62fc3d 100644 --- a/arch/powerpc/platforms/83xx/mpc83xx.h +++ b/arch/powerpc/platforms/83xx/mpc83xx.h @@ -14,6 +14,8 @@ #define MPC83XX_SCCR_USB_DRCM_11 0x00300000 #define MPC83XX_SCCR_USB_DRCM_01 0x00100000 #define MPC83XX_SCCR_USB_DRCM_10 0x00200000 +#define MPC8315_SCCR_USB_MASK 0x00c00000 +#define MPC8315_SCCR_USB_DRCM_11 0x00c00000 #define MPC837X_SCCR_USB_DRCM_11 0x00c00000 /* system i/o configuration register low */ diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c index 681230a30acd..471fdd8f4108 100644 --- a/arch/powerpc/platforms/83xx/usb.c +++ b/arch/powerpc/platforms/83xx/usb.c @@ -104,6 +104,7 @@ int mpc831x_usb_cfg(void) u32 temp; void __iomem *immap, *usb_regs; struct device_node *np = NULL; + struct device_node *immr_node = NULL; const void *prop; struct resource res; int ret = 0; @@ -124,10 +125,15 @@ int mpc831x_usb_cfg(void) } /* Configure clock */ - temp = in_be32(immap + MPC83XX_SCCR_OFFS); - temp &= ~MPC83XX_SCCR_USB_MASK; - temp |= MPC83XX_SCCR_USB_DRCM_11; /* 1:3 */ - out_be32(immap + MPC83XX_SCCR_OFFS, temp); + immr_node = of_get_parent(np); + if (immr_node && of_device_is_compatible(immr_node, "fsl,mpc8315-immr")) + clrsetbits_be32(immap + MPC83XX_SCCR_OFFS, + MPC8315_SCCR_USB_MASK, + MPC8315_SCCR_USB_DRCM_11); + else + clrsetbits_be32(immap + MPC83XX_SCCR_OFFS, + MPC83XX_SCCR_USB_MASK, + MPC83XX_SCCR_USB_DRCM_11); /* Configure pin mux for ULPI. There is no pin mux for UTMI */ if (prop && !strcmp(prop, "ulpi")) { @@ -144,6 +150,9 @@ int mpc831x_usb_cfg(void) iounmap(immap); + if (immr_node) + of_node_put(immr_node); + /* Map USB SOC space */ ret = of_address_to_resource(np, 0, &res); if (ret) { diff --git a/arch/powerpc/platforms/8xx/adder875.c b/arch/powerpc/platforms/8xx/adder875.c index c6bc0783c3b0..82363e98f50e 100644 --- a/arch/powerpc/platforms/8xx/adder875.c +++ b/arch/powerpc/platforms/8xx/adder875.c @@ -15,12 +15,12 @@ #include <asm/time.h> #include <asm/machdep.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #include <asm/fs_pd.h> #include <asm/udbg.h> #include <asm/prom.h> -#include <sysdev/commproc.h> +#include "mpc8xx.h" struct cpm_pin { int port, pin, flags; @@ -108,7 +108,7 @@ define_machine(adder875) { .name = "Adder MPC875", .probe = adder875_probe, .setup_arch = adder875_setup, - .init_IRQ = m8xx_pic_init, + .init_IRQ = mpc8xx_pics_init, .get_irq = mpc8xx_get_irq, .restart = mpc8xx_restart, .calibrate_decr = generic_calibrate_decr, diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c index a8dffa005775..7d9ac6040d63 100644 --- a/arch/powerpc/platforms/8xx/ep88xc.c +++ b/arch/powerpc/platforms/8xx/ep88xc.c @@ -15,7 +15,6 @@ #include <asm/machdep.h> #include <asm/io.h> #include <asm/udbg.h> -#include <asm/commproc.h> #include <asm/cpm1.h> #include "mpc8xx.h" diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index fdce10c4f074..fcedbec07f94 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -24,6 +24,7 @@ config PPC_83xx select MPC83xx select IPIC select WANT_DEVICE_TREE + select FSL_EMB_PERFMON config PPC_86xx bool "Freescale 86xx" @@ -41,6 +42,7 @@ config CLASSIC32 source "arch/powerpc/platforms/pseries/Kconfig" source "arch/powerpc/platforms/iseries/Kconfig" source "arch/powerpc/platforms/chrp/Kconfig" +source "arch/powerpc/platforms/512x/Kconfig" source "arch/powerpc/platforms/52xx/Kconfig" source "arch/powerpc/platforms/powermac/Kconfig" source "arch/powerpc/platforms/prep/Kconfig" diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 7fc41104d53e..69941ba70975 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -14,7 +14,7 @@ choice There are five families of 32 bit PowerPC chips supported. The most common ones are the desktop and server CPUs (601, 603, 604, 740, 750, 74xx) CPUs from Freescale and IBM, with their - embedded 52xx/82xx/83xx/86xx counterparts. + embedded 512x/52xx/82xx/83xx/86xx counterparts. The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500 (85xx) each form a family of their own that is not compatible with the others. @@ -22,7 +22,7 @@ choice If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx. config 6xx - bool "52xx/6xx/7xx/74xx/82xx/83xx/86xx" + bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" select PPC_FPU config PPC_85xx @@ -94,6 +94,7 @@ config 8xx bool config E500 + select FSL_EMB_PERFMON bool config PPC_FPU @@ -115,6 +116,9 @@ config FSL_BOOKE depends on E200 || E500 default y +config FSL_EMB_PERFMON + bool + config PTE_64BIT bool depends on 44x || E500 @@ -221,7 +225,7 @@ config NR_CPUS config NOT_COHERENT_CACHE bool - depends on 4xx || 8xx || E200 + depends on 4xx || 8xx || E200 || PPC_MPC512x default y config CHECK_CACHE_COHERENCY diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile index 6d9079da5f5a..a984894466d9 100644 --- a/arch/powerpc/platforms/Makefile +++ b/arch/powerpc/platforms/Makefile @@ -11,6 +11,7 @@ endif obj-$(CONFIG_PPC_CHRP) += chrp/ obj-$(CONFIG_40x) += 40x/ obj-$(CONFIG_44x) += 44x/ +obj-$(CONFIG_PPC_MPC512x) += 512x/ obj-$(CONFIG_PPC_MPC52xx) += 52xx/ obj-$(CONFIG_PPC_8xx) += 8xx/ obj-$(CONFIG_PPC_82xx) += 82xx/ diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index 3a963b4a9be0..2f169991896d 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -54,6 +54,13 @@ config SPU_FS_64K_LS uses 4K pages. This can improve performances of applications using multiple SPEs by lowering the TLB pressure on them. +config SPU_TRACE + tristate "SPU event tracing support" + depends on SPU_FS && MARKERS + help + This option allows reading a trace of spu-related events through + the sputrace file in procfs. + config SPU_BASE bool default n diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 095988f13bf4..d95e71dee91f 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -13,7 +13,7 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/msi.h> -#include <linux/reboot.h> +#include <linux/of_platform.h> #include <asm/dcr.h> #include <asm/machdep.h> @@ -65,14 +65,12 @@ struct axon_msic { struct irq_host *irq_host; - __le32 *fifo; + __le32 *fifo_virt; + dma_addr_t fifo_phys; dcr_host_t dcr_host; - struct list_head list; u32 read_offset; }; -static LIST_HEAD(axon_msic_list); - static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val) { pr_debug("axon_msi: dcr_write(0x%x, 0x%x)\n", val, dcr_n); @@ -94,7 +92,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) while (msic->read_offset != write_offset) { idx = msic->read_offset / sizeof(__le32); - msi = le32_to_cpu(msic->fifo[idx]); + msi = le32_to_cpu(msic->fifo_virt[idx]); msi &= 0xFFFF; pr_debug("axon_msi: woff %x roff %x msi %x\n", @@ -139,6 +137,7 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev) tmp = dn; dn = of_find_node_by_phandle(*ph); + of_node_put(tmp); if (!dn) { dev_dbg(&dev->dev, "axon_msi: msi-translator doesn't point to a node\n"); @@ -156,7 +155,6 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev) out_error: of_node_put(dn); - of_node_put(tmp); return msic; } @@ -292,30 +290,24 @@ static struct irq_host_ops msic_host_ops = { .map = msic_host_map, }; -static int axon_msi_notify_reboot(struct notifier_block *nb, - unsigned long code, void *data) +static int axon_msi_shutdown(struct of_device *device) { - struct axon_msic *msic; + struct axon_msic *msic = device->dev.platform_data; u32 tmp; - list_for_each_entry(msic, &axon_msic_list, list) { - pr_debug("axon_msi: disabling %s\n", - msic->irq_host->of_node->full_name); - tmp = dcr_read(msic->dcr_host, MSIC_CTRL_REG); - tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE; - msic_dcr_write(msic, MSIC_CTRL_REG, tmp); - } + pr_debug("axon_msi: disabling %s\n", + msic->irq_host->of_node->full_name); + tmp = dcr_read(msic->dcr_host, MSIC_CTRL_REG); + tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE; + msic_dcr_write(msic, MSIC_CTRL_REG, tmp); return 0; } -static struct notifier_block axon_msi_reboot_notifier = { - .notifier_call = axon_msi_notify_reboot -}; - -static int axon_msi_setup_one(struct device_node *dn) +static int axon_msi_probe(struct of_device *device, + const struct of_device_id *device_id) { - struct page *page; + struct device_node *dn = device->node; struct axon_msic *msic; unsigned int virq; int dcr_base, dcr_len; @@ -346,16 +338,14 @@ static int axon_msi_setup_one(struct device_node *dn) goto out_free_msic; } - page = alloc_pages_node(of_node_to_nid(dn), GFP_KERNEL, - get_order(MSIC_FIFO_SIZE_BYTES)); - if (!page) { + msic->fifo_virt = dma_alloc_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES, + &msic->fifo_phys, GFP_KERNEL); + if (!msic->fifo_virt) { printk(KERN_ERR "axon_msi: couldn't allocate fifo for %s\n", dn->full_name); goto out_free_msic; } - msic->fifo = page_address(page); - msic->irq_host = irq_alloc_host(of_node_get(dn), IRQ_HOST_MAP_NOMAP, NR_IRQS, &msic_host_ops, 0); if (!msic->irq_host) { @@ -378,14 +368,18 @@ static int axon_msi_setup_one(struct device_node *dn) pr_debug("axon_msi: irq 0x%x setup for axon_msi\n", virq); /* Enable the MSIC hardware */ - msic_dcr_write(msic, MSIC_BASE_ADDR_HI_REG, (u64)msic->fifo >> 32); + msic_dcr_write(msic, MSIC_BASE_ADDR_HI_REG, msic->fifo_phys >> 32); msic_dcr_write(msic, MSIC_BASE_ADDR_LO_REG, - (u64)msic->fifo & 0xFFFFFFFF); + msic->fifo_phys & 0xFFFFFFFF); msic_dcr_write(msic, MSIC_CTRL_REG, MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE | MSIC_CTRL_FIFO_SIZE); - list_add(&msic->list, &axon_msic_list); + device->dev.platform_data = msic; + + ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; + ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs; + ppc_md.msi_check_device = axon_msi_check_device; printk(KERN_DEBUG "axon_msi: setup MSIC on %s\n", dn->full_name); @@ -394,7 +388,8 @@ static int axon_msi_setup_one(struct device_node *dn) out_free_host: kfree(msic->irq_host); out_free_fifo: - __free_pages(virt_to_page(msic->fifo), get_order(MSIC_FIFO_SIZE_BYTES)); + dma_free_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES, msic->fifo_virt, + msic->fifo_phys); out_free_msic: kfree(msic); out: @@ -402,28 +397,24 @@ out: return -1; } -static int axon_msi_init(void) -{ - struct device_node *dn; - int found = 0; - - pr_debug("axon_msi: initialising ...\n"); - - for_each_compatible_node(dn, NULL, "ibm,axon-msic") { - if (axon_msi_setup_one(dn) == 0) - found++; - } - - if (found) { - ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; - ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs; - ppc_md.msi_check_device = axon_msi_check_device; - - register_reboot_notifier(&axon_msi_reboot_notifier); +static const struct of_device_id axon_msi_device_id[] = { + { + .compatible = "ibm,axon-msic" + }, + {} +}; - pr_debug("axon_msi: registered callbacks!\n"); - } +static struct of_platform_driver axon_msi_driver = { + .match_table = axon_msi_device_id, + .probe = axon_msi_probe, + .shutdown = axon_msi_shutdown, + .driver = { + .name = "axon-msi" + }, +}; - return 0; +static int __init axon_msi_init(void) +{ + return of_register_platform_driver(&axon_msi_driver); } -arch_initcall(axon_msi_init); +subsys_initcall(axon_msi_init); diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index e6534b519c9a..a7f609b3b876 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -98,7 +98,7 @@ static int __init cell_publish_devices(void) } return 0; } -machine_device_initcall(cell, cell_publish_devices); +machine_subsys_initcall(cell, cell_publish_devices); static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc) { diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile index d3a349fb42e5..99610a6361f2 100644 --- a/arch/powerpc/platforms/cell/spufs/Makefile +++ b/arch/powerpc/platforms/cell/spufs/Makefile @@ -4,6 +4,8 @@ spufs-y += inode.o file.o context.o syscalls.o coredump.o spufs-y += sched.o backing_ops.o hw_ops.o run.o gang.o spufs-y += switch.o fault.o lscsa_alloc.o +obj-$(CONFIG_SPU_TRACE) += sputrace.o + # Rules to build switch.o with the help of SPU tool chain SPU_CROSS := spu- SPU_CC := $(SPU_CROSS)gcc diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 3fcd06418b01..1018acd1746b 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -29,6 +29,7 @@ #include <linux/poll.h> #include <linux/ptrace.h> #include <linux/seq_file.h> +#include <linux/marker.h> #include <asm/io.h> #include <asm/semaphore.h> @@ -358,6 +359,8 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, struct spu_context *ctx = vma->vm_file->private_data; unsigned long area, offset = address - vma->vm_start; + spu_context_nospu_trace(spufs_ps_nopfn__enter, ctx); + offset += vma->vm_pgoff << PAGE_SHIFT; if (offset >= ps_size) return NOPFN_SIGBUS; @@ -375,11 +378,14 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma, if (ctx->state == SPU_STATE_SAVED) { up_read(¤t->mm->mmap_sem); + spu_context_nospu_trace(spufs_ps_nopfn__sleep, ctx); spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE); + spu_context_trace(spufs_ps_nopfn__wake, ctx, ctx->spu); down_read(¤t->mm->mmap_sem); } else { area = ctx->spu->problem_phys + ps_offs; vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); + spu_context_trace(spufs_ps_nopfn__insert, ctx, ctx->spu); } spu_release(ctx); diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index c0e968a4c211..90784c029f25 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -322,7 +322,7 @@ static struct spu_context * spufs_assert_affinity(unsigned int flags, struct spu_gang *gang, struct file *filp) { - struct spu_context *tmp, *neighbor; + struct spu_context *tmp, *neighbor, *err; int count, node; int aff_supp; @@ -354,11 +354,15 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang, if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) && !list_is_last(&neighbor->aff_list, &gang->aff_list_head) && !list_entry(neighbor->aff_list.next, struct spu_context, - aff_list)->aff_head) - return ERR_PTR(-EEXIST); + aff_list)->aff_head) { + err = ERR_PTR(-EEXIST); + goto out_put_neighbor; + } - if (gang != neighbor->gang) - return ERR_PTR(-EINVAL); + if (gang != neighbor->gang) { + err = ERR_PTR(-EINVAL); + goto out_put_neighbor; + } count = 1; list_for_each_entry(tmp, &gang->aff_list_head, aff_list) @@ -372,11 +376,17 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang, break; } - if (node == MAX_NUMNODES) - return ERR_PTR(-EEXIST); + if (node == MAX_NUMNODES) { + err = ERR_PTR(-EEXIST); + goto out_put_neighbor; + } } return neighbor; + +out_put_neighbor: + put_spu_context(neighbor); + return err; } static void @@ -454,9 +464,12 @@ spufs_create_context(struct inode *inode, struct dentry *dentry, if (ret) goto out_aff_unlock; - if (affinity) + if (affinity) { spufs_set_affinity(flags, SPUFS_I(dentry->d_inode)->i_ctx, neighbor); + if (neighbor) + put_spu_context(neighbor); + } /* * get references for dget and mntget, will be released diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index c01a09da1e56..b4814c740d8a 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -410,8 +410,11 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event) * since we have TIF_SINGLESTEP set, thus the kernel will do * it upon return from the syscall anyawy */ - if ((status & SPU_STATUS_STOPPED_BY_STOP) - && (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff) { + if (unlikely(status & SPU_STATUS_SINGLE_STEP)) + ret = -ERESTARTSYS; + + else if (unlikely((status & SPU_STATUS_STOPPED_BY_STOP) + && (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff)) { force_sig(SIGTRAP, current); ret = -ERESTARTSYS; } diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 00d914232af1..5915343e2599 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -39,6 +39,7 @@ #include <linux/pid_namespace.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/marker.h> #include <asm/io.h> #include <asm/mmu_context.h> @@ -216,8 +217,8 @@ void do_notify_spus_active(void) */ static void spu_bind_context(struct spu *spu, struct spu_context *ctx) { - pr_debug("%s: pid=%d SPU=%d NODE=%d\n", __FUNCTION__, current->pid, - spu->number, spu->node); + spu_context_trace(spu_bind_context__enter, ctx, spu); + spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); if (ctx->flags & SPU_CREATE_NOSCHED) @@ -399,8 +400,8 @@ static int has_affinity(struct spu_context *ctx) */ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx) { - pr_debug("%s: unbind pid=%d SPU=%d NODE=%d\n", __FUNCTION__, - spu->pid, spu->number, spu->node); + spu_context_trace(spu_unbind_context__enter, ctx, spu); + spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); if (spu->ctx->flags & SPU_CREATE_NOSCHED) @@ -528,6 +529,8 @@ static struct spu *spu_get_idle(struct spu_context *ctx) struct spu *spu, *aff_ref_spu; int node, n; + spu_context_nospu_trace(spu_get_idle__enter, ctx); + if (ctx->gang) { mutex_lock(&ctx->gang->aff_mutex); if (has_affinity(ctx)) { @@ -546,8 +549,7 @@ static struct spu *spu_get_idle(struct spu_context *ctx) if (atomic_dec_and_test(&ctx->gang->aff_sched_count)) ctx->gang->aff_ref_spu = NULL; mutex_unlock(&ctx->gang->aff_mutex); - - return NULL; + goto not_found; } mutex_unlock(&ctx->gang->aff_mutex); } @@ -565,12 +567,14 @@ static struct spu *spu_get_idle(struct spu_context *ctx) mutex_unlock(&cbe_spu_info[node].list_mutex); } + not_found: + spu_context_nospu_trace(spu_get_idle__not_found, ctx); return NULL; found: spu->alloc_state = SPU_USED; mutex_unlock(&cbe_spu_info[node].list_mutex); - pr_debug("Got SPU %d %d\n", spu->number, spu->node); + spu_context_trace(spu_get_idle__found, ctx, spu); spu_init_channels(spu); return spu; } @@ -587,6 +591,8 @@ static struct spu *find_victim(struct spu_context *ctx) struct spu *spu; int node, n; + spu_context_nospu_trace(spu_find_vitim__enter, ctx); + /* * Look for a possible preemption candidate on the local node first. * If there is no candidate look at the other nodes. This isn't @@ -640,6 +646,8 @@ static struct spu *find_victim(struct spu_context *ctx) goto restart; } + spu_context_trace(__spu_deactivate__unload, ctx, spu); + mutex_lock(&cbe_spu_info[node].list_mutex); cbe_spu_info[node].nr_active--; spu_unbind_context(spu, victim); @@ -822,6 +830,7 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio) */ void spu_deactivate(struct spu_context *ctx) { + spu_context_nospu_trace(spu_deactivate__enter, ctx); __spu_deactivate(ctx, 1, MAX_PRIO); } @@ -835,6 +844,7 @@ void spu_deactivate(struct spu_context *ctx) */ void spu_yield(struct spu_context *ctx) { + spu_context_nospu_trace(spu_yield__enter, ctx); if (!(ctx->flags & SPU_CREATE_NOSCHED)) { mutex_lock(&ctx->state_mutex); __spu_deactivate(ctx, 0, MAX_PRIO); @@ -864,11 +874,15 @@ static noinline void spusched_tick(struct spu_context *ctx) goto out; spu = ctx->spu; + + spu_context_trace(spusched_tick__preempt, ctx, spu); + new = grab_runnable_context(ctx->prio + 1, spu->node); if (new) { spu_unschedule(spu, ctx); spu_add_to_rq(ctx); } else { + spu_context_nospu_trace(spusched_tick__newslice, ctx); ctx->time_slice++; } out: diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 0e114038ea6f..795a1b52538b 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -325,4 +325,9 @@ extern void spu_free_lscsa(struct spu_state *csa); extern void spuctx_switch_state(struct spu_context *ctx, enum spu_utilization_state new_state); +#define spu_context_trace(name, ctx, spu) \ + trace_mark(name, "%p %p", ctx, spu); +#define spu_context_nospu_trace(name, ctx) \ + trace_mark(name, "%p", ctx); + #endif diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c new file mode 100644 index 000000000000..2b1953f6f12e --- /dev/null +++ b/arch/powerpc/platforms/cell/spufs/sputrace.c @@ -0,0 +1,250 @@ +/* + * Copyright (C) 2007 IBM Deutschland Entwicklung GmbH + * Released under GPL v2. + * + * Partially based on net/ipv4/tcp_probe.c. + * + * Simple tracing facility for spu contexts. + */ +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/marker.h> +#include <linux/proc_fs.h> +#include <linux/wait.h> +#include <asm/atomic.h> +#include <asm/uaccess.h> +#include "spufs.h" + +struct spu_probe { + const char *name; + const char *format; + marker_probe_func *probe_func; +}; + +struct sputrace { + ktime_t tstamp; + int owner_tid; /* owner */ + int curr_tid; + const char *name; + int number; +}; + +static int bufsize __read_mostly = 16384; +MODULE_PARM_DESC(bufsize, "Log buffer size (number of records)"); +module_param(bufsize, int, 0); + + +static DEFINE_SPINLOCK(sputrace_lock); +static DECLARE_WAIT_QUEUE_HEAD(sputrace_wait); +static ktime_t sputrace_start; +static unsigned long sputrace_head, sputrace_tail; +static struct sputrace *sputrace_log; + +static int sputrace_used(void) +{ + return (sputrace_head - sputrace_tail) % bufsize; +} + +static inline int sputrace_avail(void) +{ + return bufsize - sputrace_used(); +} + +static int sputrace_sprint(char *tbuf, int n) +{ + const struct sputrace *t = sputrace_log + sputrace_tail % bufsize; + struct timespec tv = + ktime_to_timespec(ktime_sub(t->tstamp, sputrace_start)); + + return snprintf(tbuf, n, + "[%lu.%09lu] %d: %s (thread = %d, spu = %d)\n", + (unsigned long) tv.tv_sec, + (unsigned long) tv.tv_nsec, + t->owner_tid, + t->name, + t->curr_tid, + t->number); +} + +static ssize_t sputrace_read(struct file *file, char __user *buf, + size_t len, loff_t *ppos) +{ + int error = 0, cnt = 0; + + if (!buf || len < 0) + return -EINVAL; + + while (cnt < len) { + char tbuf[128]; + int width; + + error = wait_event_interruptible(sputrace_wait, + sputrace_used() > 0); + if (error) + break; + + spin_lock(&sputrace_lock); + if (sputrace_head == sputrace_tail) { + spin_unlock(&sputrace_lock); + continue; + } + + width = sputrace_sprint(tbuf, sizeof(tbuf)); + if (width < len) + sputrace_tail = (sputrace_tail + 1) % bufsize; + spin_unlock(&sputrace_lock); + + if (width >= len) + break; + + error = copy_to_user(buf + cnt, tbuf, width); + if (error) + break; + cnt += width; + } + + return cnt == 0 ? error : cnt; +} + +static int sputrace_open(struct inode *inode, struct file *file) +{ + spin_lock(&sputrace_lock); + sputrace_head = sputrace_tail = 0; + sputrace_start = ktime_get(); + spin_unlock(&sputrace_lock); + + return 0; +} + +static const struct file_operations sputrace_fops = { + .owner = THIS_MODULE, + .open = sputrace_open, + .read = sputrace_read, +}; + +static void sputrace_log_item(const char *name, struct spu_context *ctx, + struct spu *spu) +{ + spin_lock(&sputrace_lock); + if (sputrace_avail() > 1) { + struct sputrace *t = sputrace_log + sputrace_head; + + t->tstamp = ktime_get(); + t->owner_tid = ctx->tid; + t->name = name; + t->curr_tid = current->pid; + t->number = spu ? spu->number : -1; + + sputrace_head = (sputrace_head + 1) % bufsize; + } else { + printk(KERN_WARNING + "sputrace: lost samples due to full buffer.\n"); + } + spin_unlock(&sputrace_lock); + + wake_up(&sputrace_wait); +} + +static void spu_context_event(const struct marker *mdata, + void *private, const char *format, ...) +{ + struct spu_probe *p = mdata->private; + va_list ap; + struct spu_context *ctx; + struct spu *spu; + + va_start(ap, format); + ctx = va_arg(ap, struct spu_context *); + spu = va_arg(ap, struct spu *); + + sputrace_log_item(p->name, ctx, spu); + va_end(ap); +} + +static void spu_context_nospu_event(const struct marker *mdata, + void *private, const char *format, ...) +{ + struct spu_probe *p = mdata->private; + va_list ap; + struct spu_context *ctx; + + va_start(ap, format); + ctx = va_arg(ap, struct spu_context *); + + sputrace_log_item(p->name, ctx, NULL); + va_end(ap); +} + +struct spu_probe spu_probes[] = { + { "spu_bind_context__enter", "%p %p", spu_context_event }, + { "spu_unbind_context__enter", "%p %p", spu_context_event }, + { "spu_get_idle__enter", "%p", spu_context_nospu_event }, + { "spu_get_idle__found", "%p %p", spu_context_event }, + { "spu_get_idle__not_found", "%p", spu_context_nospu_event }, + { "spu_find_victim__enter", "%p", spu_context_nospu_event }, + { "spusched_tick__preempt", "%p %p", spu_context_event }, + { "spusched_tick__newslice", "%p", spu_context_nospu_event }, + { "spu_yield__enter", "%p", spu_context_nospu_event }, + { "spu_deactivate__enter", "%p", spu_context_nospu_event }, + { "__spu_deactivate__unload", "%p %p", spu_context_event }, + { "spufs_ps_nopfn__enter", "%p", spu_context_nospu_event }, + { "spufs_ps_nopfn__sleep", "%p", spu_context_nospu_event }, + { "spufs_ps_nopfn__wake", "%p %p", spu_context_event }, + { "spufs_ps_nopfn__insert", "%p %p", spu_context_event }, + { "spu_acquire_saved__enter", "%p", spu_context_nospu_event }, + { "destroy_spu_context__enter", "%p", spu_context_nospu_event }, +}; + +static int __init sputrace_init(void) +{ + struct proc_dir_entry *entry; + int i, error = -ENOMEM; + + sputrace_log = kcalloc(sizeof(struct sputrace), + bufsize, GFP_KERNEL); + if (!sputrace_log) + goto out; + + entry = create_proc_entry("sputrace", S_IRUSR, NULL); + if (!entry) + goto out_free_log; + entry->proc_fops = &sputrace_fops; + + for (i = 0; i < ARRAY_SIZE(spu_probes); i++) { + struct spu_probe *p = &spu_probes[i]; + + error = marker_probe_register(p->name, p->format, + p->probe_func, p); + if (error) + printk(KERN_INFO "Unable to register probe %s\n", + p->name); + + error = marker_arm(p->name); + if (error) + printk(KERN_INFO "Unable to arm probe %s\n", p->name); + } + + return 0; + +out_free_log: + kfree(sputrace_log); +out: + return -ENOMEM; +} + +static void __exit sputrace_exit(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(spu_probes); i++) + marker_probe_unregister(spu_probes[i].name); + + remove_proc_entry("sputrace", NULL); + kfree(sputrace_log); +} + +module_init(sputrace_init); +module_exit(sputrace_exit); + +MODULE_LICENSE("GPL"); diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c index e12e9d298716..8864e4884980 100644 --- a/arch/powerpc/platforms/embedded6xx/storcenter.c +++ b/arch/powerpc/platforms/embedded6xx/storcenter.c @@ -132,33 +132,18 @@ static void __init storcenter_init_IRQ(void) paddr = (phys_addr_t)of_translate_address(dnp, prop); mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, - 4, 32, " EPIC "); + 16, 32, " OpenPIC "); of_node_put(dnp); BUG_ON(mpic == NULL); - /* PCI IRQs */ /* - * 2.6.12 patch: - * openpic_set_sources(0, 5, OpenPIC_Addr + 0x10200); - * openpic_set_sources(5, 2, OpenPIC_Addr + 0x11120); - * first_irq, num_irqs, __iomem first_ISR - * o_ss: i, src: 0, fdf50200 - * o_ss: i, src: 1, fdf50220 - * o_ss: i, src: 2, fdf50240 - * o_ss: i, src: 3, fdf50260 - * o_ss: i, src: 4, fdf50280 - * o_ss: i, src: 5, fdf51120 - * o_ss: i, src: 6, fdf51140 + * 16 Serial Interrupts followed by 16 Internal Interrupts. + * I2C is the second internal, so it is at 17, 0x11020. */ mpic_assign_isu(mpic, 0, paddr + 0x10200); - mpic_assign_isu(mpic, 1, paddr + 0x10220); - mpic_assign_isu(mpic, 2, paddr + 0x10240); - mpic_assign_isu(mpic, 3, paddr + 0x10260); - mpic_assign_isu(mpic, 4, paddr + 0x10280); - mpic_assign_isu(mpic, 5, paddr + 0x11120); - mpic_assign_isu(mpic, 6, paddr + 0x11140); + mpic_assign_isu(mpic, 1, paddr + 0x11000); mpic_init(mpic); } @@ -178,7 +163,7 @@ static int __init storcenter_probe(void) { unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "storcenter"); + return of_flat_dt_is_compatible(root, "iomega,storcenter"); } define_machine(storcenter){ diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c index 6a0c6f6675cd..11fa3c772ed5 100644 --- a/arch/powerpc/platforms/iseries/iommu.c +++ b/arch/powerpc/platforms/iseries/iommu.c @@ -199,7 +199,7 @@ static struct iommu_table vio_iommu_table; void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag) { - return iommu_alloc_coherent(&vio_iommu_table, size, dma_handle, + return iommu_alloc_coherent(NULL, &vio_iommu_table, size, dma_handle, DMA_32BIT_MASK, flag, -1); } EXPORT_SYMBOL_GPL(iseries_hv_alloc); @@ -213,7 +213,7 @@ EXPORT_SYMBOL_GPL(iseries_hv_free); dma_addr_t iseries_hv_map(void *vaddr, size_t size, enum dma_data_direction direction) { - return iommu_map_single(&vio_iommu_table, vaddr, size, + return iommu_map_single(NULL, &vio_iommu_table, vaddr, size, DMA_32BIT_MASK, direction); } diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index 9916a0f3e431..5803f11c77fc 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -182,8 +182,10 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev) * CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE at build time. */ if (dev->vendor == 0x1959 && dev->device == 0xa007 && - !firmware_has_feature(FW_FEATURE_LPAR)) + !firmware_has_feature(FW_FEATURE_LPAR)) { dev->dev.archdata.dma_ops = &dma_direct_ops; + return; + } #endif dev->dev.archdata.dma_data = &iommu_table_iobmap; diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index c4ad54e0f288..1f032483c026 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -58,7 +58,7 @@ static void pseries_mach_cpu_die(void) { local_irq_disable(); idle_task_exit(); - xics_teardown_cpu(0); + xics_teardown_cpu(); unregister_slb_shadow(hard_smp_processor_id(), __pa(get_slb_shadow())); rtas_stop_self(); /* Should never get here... */ diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c index 412a5e7aff2d..e9dd5fe081c9 100644 --- a/arch/powerpc/platforms/pseries/kexec.c +++ b/arch/powerpc/platforms/pseries/kexec.c @@ -54,7 +54,7 @@ void __init setup_kexec_cpu_down_mpic(void) static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) { pseries_kexec_cpu_down(crash_shutdown, secondary); - xics_teardown_cpu(secondary); + xics_kexec_teardown_cpu(secondary); } void __init setup_kexec_cpu_down_xics(void) diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index c02f8742c54d..2800fced8c7c 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -167,6 +167,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np) if ((child = of_get_next_child(np, NULL))) { of_node_put(child); + of_node_put(parent); return -EBUSY; } diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 8f8dd9c3ca6b..ca52b587166d 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -160,6 +160,46 @@ static inline void lpar_qirr_info(int n_cpu , u8 value) /* High level handlers and init code */ +static void xics_update_irq_servers(void) +{ + int i, j; + struct device_node *np; + u32 ilen; + const u32 *ireg, *isize; + u32 hcpuid; + + /* Find the server numbers for the boot cpu. */ + np = of_get_cpu_node(boot_cpuid, NULL); + BUG_ON(!np); + + ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); + if (!ireg) { + of_node_put(np); + return; + } + + i = ilen / sizeof(int); + hcpuid = get_hard_smp_processor_id(boot_cpuid); + + /* Global interrupt distribution server is specified in the last + * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last + * entry fom this property for current boot cpu id and use it as + * default distribution server + */ + for (j = 0; j < i; j += 2) { + if (ireg[j] == hcpuid) { + default_server = hcpuid; + default_distrib_server = ireg[j+1]; + + isize = of_get_property(np, + "ibm,interrupt-server#-size", NULL); + if (isize) + interrupt_server_size = *isize; + } + } + + of_node_put(np); +} #ifdef CONFIG_SMP static int get_irq_server(unsigned int virq, unsigned int strict_check) @@ -169,6 +209,9 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check) cpumask_t cpumask = irq_desc[virq].affinity; cpumask_t tmp = CPU_MASK_NONE; + if (! cpu_isset(default_server, cpu_online_map)) + xics_update_irq_servers(); + if (!distribute_irqs) return default_server; @@ -658,39 +701,11 @@ static void __init xics_setup_8259_cascade(void) set_irq_chained_handler(cascade, pseries_8259_cascade); } -static struct device_node *cpuid_to_of_node(int cpu) -{ - struct device_node *np; - u32 hcpuid = get_hard_smp_processor_id(cpu); - - for_each_node_by_type(np, "cpu") { - int i, len; - const u32 *intserv; - - intserv = of_get_property(np, "ibm,ppc-interrupt-server#s", - &len); - - if (!intserv) - intserv = of_get_property(np, "reg", &len); - - i = len / sizeof(u32); - - while (i--) - if (intserv[i] == hcpuid) - return np; - } - - return NULL; -} - void __init xics_init_IRQ(void) { - int i, j; struct device_node *np; - u32 ilen, indx = 0; - const u32 *ireg, *isize; + u32 indx = 0; int found = 0; - u32 hcpuid; ppc64_boot_msg(0x20, "XICS Init"); @@ -709,34 +724,7 @@ void __init xics_init_IRQ(void) return; xics_init_host(); - - /* Find the server numbers for the boot cpu. */ - np = cpuid_to_of_node(boot_cpuid); - BUG_ON(!np); - ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); - if (!ireg) - goto skip_gserver_check; - i = ilen / sizeof(int); - hcpuid = get_hard_smp_processor_id(boot_cpuid); - - /* Global interrupt distribution server is specified in the last - * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last - * entry fom this property for current boot cpu id and use it as - * default distribution server - */ - for (j = 0; j < i; j += 2) { - if (ireg[j] == hcpuid) { - default_server = hcpuid; - default_distrib_server = ireg[j+1]; - - isize = of_get_property(np, - "ibm,interrupt-server#-size", NULL); - if (isize) - interrupt_server_size = *isize; - } - } -skip_gserver_check: - of_node_put(np); + xics_update_irq_servers(); if (firmware_has_feature(FW_FEATURE_LPAR)) ppc_md.get_irq = xics_get_irq_lpar; @@ -775,11 +763,9 @@ void xics_request_IPIs(void) } #endif /* CONFIG_SMP */ -void xics_teardown_cpu(int secondary) +void xics_teardown_cpu() { int cpu = smp_processor_id(); - unsigned int ipi; - struct irq_desc *desc; xics_set_cpu_priority(0); @@ -790,9 +776,17 @@ void xics_teardown_cpu(int secondary) lpar_qirr_info(cpu, 0xff); else direct_qirr_info(cpu, 0xff); +} + +void xics_kexec_teardown_cpu(int secondary) +{ + unsigned int ipi; + struct irq_desc *desc; + + xics_teardown_cpu(); /* - * we need to EOI the IPI if we got here from kexec down IPI + * we need to EOI the IPI * * probably need to check all the other interrupts too * should we be flagging idle loop instead? @@ -880,8 +874,8 @@ void xics_migrate_irqs_away(void) virq, cpu); /* Reset affinity to all cpus */ + irq_desc[virq].affinity = CPU_MASK_ALL; desc->chip->set_affinity(virq, CPU_MASK_ALL); - irq_desc[irq].affinity = CPU_MASK_ALL; unlock: spin_unlock_irqrestore(&desc->lock, flags); } diff --git a/arch/powerpc/platforms/pseries/xics.h b/arch/powerpc/platforms/pseries/xics.h index 9ffd809d29e2..c26bcff47b6d 100644 --- a/arch/powerpc/platforms/pseries/xics.h +++ b/arch/powerpc/platforms/pseries/xics.h @@ -16,7 +16,8 @@ extern void xics_init_IRQ(void); extern void xics_setup_cpu(void); -extern void xics_teardown_cpu(int secondary); +extern void xics_teardown_cpu(void); +extern void xics_kexec_teardown_cpu(int secondary); extern void xics_cause_IPI(int cpu); extern void xics_request_IPIs(void); extern void xics_migrate_irqs_away(void); diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c index 427027c7ea0f..437e48d3ae33 100644 --- a/arch/powerpc/sysdev/dcr.c +++ b/arch/powerpc/sysdev/dcr.c @@ -137,5 +137,6 @@ void dcr_unmap(dcr_host_t host, unsigned int dcr_c) h.token = NULL; } EXPORT_SYMBOL_GPL(dcr_unmap); - -#endif /* !defined(CONFIG_PPC_DCR_NATIVE) */ +#else /* defined(CONFIG_PPC_DCR_NATIVE) */ +DEFINE_SPINLOCK(dcr_ind_lock); +#endif /* !defined(CONFIG_PPC_DCR_NATIVE) */ diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index e48b20e934ca..2c5388ce902a 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -1342,7 +1342,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk, if (ret) goto unreg; - ret = platform_device_register(pdev); + ret = platform_device_add(pdev); if (ret) goto unreg; diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c index 0e74a4bd9827..5d2d5522ef41 100644 --- a/arch/powerpc/sysdev/mpc8xx_pic.c +++ b/arch/powerpc/sysdev/mpc8xx_pic.c @@ -174,15 +174,19 @@ int mpc8xx_pic_init(void) goto out; siu_reg = ioremap(res.start, res.end - res.start + 1); - if (siu_reg == NULL) - return -EINVAL; + if (siu_reg == NULL) { + ret = -EINVAL; + goto out; + } - mpc8xx_pic_host = irq_alloc_host(of_node_get(np), IRQ_HOST_MAP_LINEAR, + mpc8xx_pic_host = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, 64, &mpc8xx_pic_host_ops, 64); if (mpc8xx_pic_host == NULL) { printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n"); ret = -ENOMEM; + goto out; } + return 0; out: of_node_put(np); diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 5ef844da9355..6efbd5e5bb1b 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -66,7 +66,7 @@ phys_addr_t get_qe_base(void) { struct device_node *qe; unsigned int size; - const void *prop; + const u32 *prop; if (qebase != -1) return qebase; @@ -79,7 +79,8 @@ phys_addr_t get_qe_base(void) } prop = of_get_property(qe, "reg", &size); - qebase = of_translate_address(qe, prop); + if (prop && size >= sizeof(*prop)) + qebase = of_translate_address(qe, prop); of_node_put(qe); return qebase; @@ -172,10 +173,9 @@ unsigned int get_brg_clk(void) } prop = of_get_property(qe, "brg-frequency", &size); - if (!prop || size != sizeof(*prop)) - return brg_clk; + if (prop && size == sizeof(*prop)) + brg_clk = *prop; - brg_clk = *prop; of_node_put(qe); return brg_clk; diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index db5934cdafb3..531156f8919c 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -42,6 +42,8 @@ config GENERIC_CALIBRATE_DELAY config PPC bool default y + select HAVE_OPROFILE + select HAVE_KPROBES config PPC32 bool @@ -1256,8 +1258,6 @@ endmenu source "lib/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/ppc/Kconfig.debug" source "security/Kconfig" diff --git a/arch/ppc/mm/pgtable.c b/arch/ppc/mm/pgtable.c index fadacfd18806..409fcaa4994a 100644 --- a/arch/ppc/mm/pgtable.c +++ b/arch/ppc/mm/pgtable.c @@ -74,7 +74,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) return ret; } -void pgd_free(pgd_t *pgd) +void pgd_free(struct mm_struct *mm, pgd_t *pgd) { free_pages((unsigned long)pgd, PGDIR_ORDER); } @@ -111,7 +111,7 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) return ptepage; } -void pte_free_kernel(pte_t *pte) +void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { #ifdef CONFIG_SMP hash_page_sync(); @@ -119,7 +119,7 @@ void pte_free_kernel(pte_t *pte) free_page((unsigned long)pte); } -void pte_free(struct page *ptepage) +void pte_free(struct mm_struct *mm, struct page *ptepage) { #ifdef CONFIG_SMP hash_page_sync(); diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 6ef54d27fc00..92a4f7b4323a 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -16,6 +16,9 @@ config LOCKDEP_SUPPORT config STACKTRACE_SUPPORT def_bool y +config HAVE_LATENCYTOP_SUPPORT + def_bool y + config RWSEM_GENERIC_SPINLOCK bool @@ -47,10 +50,17 @@ config NO_IOMEM config NO_DMA def_bool y +config GENERIC_LOCKBREAK + bool + default y + depends on SMP && PREEMPT + mainmenu "Linux Kernel Configuration" config S390 def_bool y + select HAVE_OPROFILE + select HAVE_KPROBES source "init/Kconfig" @@ -81,8 +91,8 @@ config SMP singleprocessor machines. On a singleprocessor machine, the kernel will run faster if you say N here. - See also the <file:Documentation/smp.txt> and the SMP-HOWTO - available at <http://www.tldp.org/docs.html#howto>. + See also the SMP-HOWTO available at + <http://www.tldp.org/docs.html#howto>. Even if you don't know what to do here, say Y. @@ -526,8 +536,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/s390/Kconfig.debug" source "security/Kconfig" diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug index 2283933a9a93..4599fa06bd82 100644 --- a/arch/s390/Kconfig.debug +++ b/arch/s390/Kconfig.debug @@ -6,4 +6,12 @@ config TRACE_IRQFLAGS_SUPPORT source "lib/Kconfig.debug" +config DEBUG_PAGEALLOC + bool "Debug page memory allocations" + depends on DEBUG_KERNEL + help + Unmap pages from the kernel linear mapping after free_pages(). + This results in a slowdown, but helps to find certain types of + memory corruptions. + endmenu diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 6ee1bedbd1bf..062c3d4c0394 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1698,14 +1698,6 @@ compat_sys_signalfd_wrapper: llgfr %r4,%r4 # compat_size_t jg compat_sys_signalfd - .globl compat_sys_timerfd_wrapper -compat_sys_timerfd_wrapper: - lgfr %r2,%r2 # int - lgfr %r3,%r3 # int - lgfr %r4,%r4 # int - llgtr %r5,%r5 # struct compat_itimerspec * - jg compat_sys_timerfd - .globl sys_eventfd_wrapper sys_eventfd_wrapper: llgfr %r2,%r2 # unsigned int diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 1a6dac8df6fb..6766e37fe8ea 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -11,6 +11,7 @@ #include <linux/sys.h> #include <linux/linkage.h> +#include <linux/init.h> #include <asm/cache.h> #include <asm/lowcore.h> #include <asm/errno.h> @@ -830,9 +831,7 @@ mcck_return: * Restart interruption handler, kick starter for additional CPUs */ #ifdef CONFIG_SMP -#ifndef CONFIG_HOTPLUG_CPU - .section .init.text,"ax" -#endif + __CPUINIT .globl restart_int_handler restart_int_handler: l %r15,__LC_SAVE_AREA+60 # load ksp @@ -845,9 +844,7 @@ restart_int_handler: br %r14 # branch to start_secondary restart_addr: .long start_secondary -#ifndef CONFIG_HOTPLUG_CPU .previous -#endif #else /* * If we do not run with SMP enabled, let the new CPU crash ... diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index a3e47b893f07..efde6e178f6c 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -11,6 +11,7 @@ #include <linux/sys.h> #include <linux/linkage.h> +#include <linux/init.h> #include <asm/cache.h> #include <asm/lowcore.h> #include <asm/errno.h> @@ -801,9 +802,7 @@ mcck_return: * Restart interruption handler, kick starter for additional CPUs */ #ifdef CONFIG_SMP -#ifndef CONFIG_HOTPLUG_CPU - .section .init.text,"ax" -#endif + __CPUINIT .globl restart_int_handler restart_int_handler: lg %r15,__LC_SAVE_AREA+120 # load ksp @@ -814,9 +813,7 @@ restart_int_handler: lmg %r6,%r15,__SF_GPRS(%r15) # load registers from clone stosm __SF_EMPTY(%r15),0x04 # now we can turn dat on jg start_secondary -#ifndef CONFIG_HOTPLUG_CPU .previous -#endif #else /* * If we do not run with SMP enabled, let the new CPU crash ... diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index db28cca81fef..60acdc266db1 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -439,7 +439,7 @@ static void ipl_run(struct shutdown_trigger *trigger) reipl_ccw_dev(&ipl_info.data.ccw.dev_id); } -static int ipl_init(void) +static int __init ipl_init(void) { int rc; @@ -471,8 +471,11 @@ out: return 0; } -static struct shutdown_action ipl_action = {SHUTDOWN_ACTION_IPL_STR, ipl_run, - ipl_init}; +static struct shutdown_action __refdata ipl_action = { + .name = SHUTDOWN_ACTION_IPL_STR, + .fn = ipl_run, + .init = ipl_init, +}; /* * reipl shutdown action: Reboot Linux on shutdown. @@ -792,7 +795,7 @@ static int __init reipl_fcp_init(void) return 0; } -static int reipl_init(void) +static int __init reipl_init(void) { int rc; @@ -819,8 +822,11 @@ static int reipl_init(void) return 0; } -static struct shutdown_action reipl_action = {SHUTDOWN_ACTION_REIPL_STR, - reipl_run, reipl_init}; +static struct shutdown_action __refdata reipl_action = { + .name = SHUTDOWN_ACTION_REIPL_STR, + .fn = reipl_run, + .init = reipl_init, +}; /* * dump shutdown action: Dump Linux on shutdown. @@ -998,7 +1004,7 @@ static int __init dump_fcp_init(void) return 0; } -static int dump_init(void) +static int __init dump_init(void) { int rc; @@ -1020,8 +1026,11 @@ static int dump_init(void) return 0; } -static struct shutdown_action dump_action = {SHUTDOWN_ACTION_DUMP_STR, - dump_run, dump_init}; +static struct shutdown_action __refdata dump_action = { + .name = SHUTDOWN_ACTION_DUMP_STR, + .fn = dump_run, + .init = dump_init, +}; /* * vmcmd shutdown action: Trigger vm command on shutdown. diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 766c783bd7a7..29ae165d1749 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -77,7 +77,7 @@ unsigned long machine_flags = 0; unsigned long elf_hwcap = 0; char elf_platform[ELF_PLATFORM_SIZE]; -struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS]; +struct mem_chunk __meminitdata memory_chunk[MEMORY_CHUNKS]; volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */ static unsigned long __initdata memory_end; @@ -145,7 +145,7 @@ __setup("condev=", condev_setup); static int __init conmode_setup(char *str) { -#if defined(CONFIG_SCLP_CONSOLE) +#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) if (strncmp(str, "hwc", 4) == 0 || strncmp(str, "sclp", 5) == 0) SET_CONSOLE_SCLP; #endif @@ -183,7 +183,7 @@ static void __init conmode_default(void) */ cpcmd("TERM CONMODE 3215", NULL, 0, NULL); if (ptr == NULL) { -#if defined(CONFIG_SCLP_CONSOLE) +#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) SET_CONSOLE_SCLP; #endif return; @@ -193,7 +193,7 @@ static void __init conmode_default(void) SET_CONSOLE_3270; #elif defined(CONFIG_TN3215_CONSOLE) SET_CONSOLE_3215; -#elif defined(CONFIG_SCLP_CONSOLE) +#elif defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) SET_CONSOLE_SCLP; #endif } else if (strncmp(ptr + 8, "3215", 4) == 0) { @@ -201,7 +201,7 @@ static void __init conmode_default(void) SET_CONSOLE_3215; #elif defined(CONFIG_TN3270_CONSOLE) SET_CONSOLE_3270; -#elif defined(CONFIG_SCLP_CONSOLE) +#elif defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) SET_CONSOLE_SCLP; #endif } @@ -212,7 +212,7 @@ static void __init conmode_default(void) SET_CONSOLE_3270; #endif } else { -#if defined(CONFIG_SCLP_CONSOLE) +#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE) SET_CONSOLE_SCLP; #endif } @@ -528,7 +528,7 @@ static void __init setup_memory_end(void) memory_size = 0; memory_end &= PAGE_MASK; - max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START; + max_mem = memory_end ? min(VMEM_MAX_PHYS, memory_end) : VMEM_MAX_PHYS; memory_end = min(max_mem, memory_end); /* diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index aa37fa154512..85060659fb12 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -225,12 +225,11 @@ EXPORT_SYMBOL(smp_call_function_single); * You must not call this function with disabled interrupts or from a * hardware interrupt handler or from a bottom half handler. */ -int -smp_call_function_mask(cpumask_t mask, - void (*func)(void *), void *info, - int wait) +int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info, + int wait) { preempt_disable(); + cpu_clear(smp_processor_id(), mask); __smp_call_function_map(func, info, 0, wait, mask); preempt_enable(); return 0; @@ -1008,7 +1007,7 @@ static struct notifier_block __cpuinitdata smp_cpu_nb = { .notifier_call = smp_cpu_notify, }; -static int smp_add_present_cpu(int cpu) +static int __devinit smp_add_present_cpu(int cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); struct sys_device *s = &c->sysdev; @@ -1036,8 +1035,8 @@ out: } #ifdef CONFIG_HOTPLUG_CPU -static ssize_t rescan_store(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t __ref rescan_store(struct sys_device *dev, + const char *buf, size_t count) { cpumask_t newcpus; int cpu; diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index da6924729964..85e46a5d0e08 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -14,7 +14,8 @@ static unsigned long save_context_stack(struct stack_trace *trace, unsigned long sp, unsigned long low, - unsigned long high) + unsigned long high, + int savesched) { struct stack_frame *sf; struct pt_regs *regs; @@ -47,10 +48,12 @@ static unsigned long save_context_stack(struct stack_trace *trace, return sp; regs = (struct pt_regs *)sp; addr = regs->psw.addr & PSW_ADDR_INSN; - if (!trace->skip) - trace->entries[trace->nr_entries++] = addr; - else - trace->skip--; + if (savesched || !in_sched_functions(addr)) { + if (!trace->skip) + trace->entries[trace->nr_entries++] = addr; + else + trace->skip--; + } if (trace->nr_entries >= trace->max_entries) return sp; low = sp; @@ -66,15 +69,27 @@ void save_stack_trace(struct stack_trace *trace) orig_sp = sp & PSW_ADDR_INSN; new_sp = save_context_stack(trace, orig_sp, S390_lowcore.panic_stack - PAGE_SIZE, - S390_lowcore.panic_stack); + S390_lowcore.panic_stack, 1); if (new_sp != orig_sp) return; new_sp = save_context_stack(trace, new_sp, S390_lowcore.async_stack - ASYNC_SIZE, - S390_lowcore.async_stack); + S390_lowcore.async_stack, 1); if (new_sp != orig_sp) return; save_context_stack(trace, new_sp, S390_lowcore.thread_info, - S390_lowcore.thread_info + THREAD_SIZE); + S390_lowcore.thread_info + THREAD_SIZE, 1); +} + +void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) +{ + unsigned long sp, low, high; + + sp = tsk->thread.ksp & PSW_ADDR_INSN; + low = (unsigned long) task_stack_page(tsk); + high = (unsigned long) task_pt_regs(tsk); + save_context_stack(trace, sp, low, high, 0); + if (trace->nr_entries < trace->max_entries) + trace->entries[trace->nr_entries++] = ULONG_MAX; } diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 9e26ed9fe4e7..25eac7802fc4 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -325,5 +325,5 @@ SYSCALL(sys_utimes,sys_utimes,compat_sys_utimes_wrapper) SYSCALL(s390_fallocate,sys_fallocate,sys_fallocate_wrapper) SYSCALL(sys_utimensat,sys_utimensat,compat_sys_utimensat_wrapper) /* 315 */ SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd_wrapper) -SYSCALL(sys_timerfd,sys_timerfd,compat_sys_timerfd_wrapper) +NI_SYSCALL /* 317 old sys_timer_fd */ SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper) diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 52b8342c6bf2..1a2fdb6991df 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -271,7 +271,10 @@ void die(const char * str, struct pt_regs * regs, long err) printk("PREEMPT "); #endif #ifdef CONFIG_SMP - printk("SMP"); + printk("SMP "); +#endif +#ifdef CONFIG_DEBUG_PAGEALLOC + printk("DEBUG_PAGEALLOC"); #endif printk("\n"); notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 7d43c3cd3ef3..b4607155e8d0 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -35,7 +35,7 @@ SECTIONS KPROBES_TEXT *(.fixup) *(.gnu.warning) - } = 0x0700 + } :text = 0x0700 _etext = .; /* End of text section */ diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index b234bb4a6da7..983ec6ec0e7c 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -167,6 +167,33 @@ void __init mem_init(void) PFN_ALIGN((unsigned long)&_eshared) - 1); } +#ifdef CONFIG_DEBUG_PAGEALLOC +void kernel_map_pages(struct page *page, int numpages, int enable) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + unsigned long address; + int i; + + for (i = 0; i < numpages; i++) { + address = page_to_phys(page + i); + pgd = pgd_offset_k(address); + pud = pud_offset(pgd, address); + pmd = pmd_offset(pud, address); + pte = pte_offset_kernel(pmd, address); + if (!enable) { + ptep_invalidate(address, pte); + continue; + } + *pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW)); + /* Flush cpu write queue. */ + mb(); + } +} +#endif + void free_initmem(void) { unsigned long addr; diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 79d13a166a3d..7c1287ccf788 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -62,7 +62,7 @@ void __meminit memmap_init(unsigned long size, int nid, unsigned long zone, } } -static void __init_refok *vmem_alloc_pages(unsigned int order) +static void __ref *vmem_alloc_pages(unsigned int order) { if (slab_is_available()) return (void *)__get_free_pages(GFP_KERNEL, order); @@ -250,7 +250,7 @@ static int insert_memory_segment(struct memory_segment *seg) { struct memory_segment *tmp; - if (seg->start + seg->size >= VMALLOC_START || + if (seg->start + seg->size >= VMEM_MAX_PHYS || seg->start + seg->size < seg->start) return -ERANGE; @@ -360,7 +360,6 @@ void __init vmem_map_init(void) { int i; - BUILD_BUG_ON((unsigned long)VMEM_MAP + VMEM_MAP_SIZE > VMEM_MAP_MAX); NODE_DATA(0)->node_mem_map = VMEM_MAP; for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) vmem_add_mem(memory_chunk[i].addr, memory_chunk[i].size); diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 1cd9c8fd927d..1c3a90835c7e 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -8,6 +8,7 @@ mainmenu "Linux/SuperH Kernel Configuration" config SUPERH def_bool y select EMBEDDED + select HAVE_OPROFILE help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast @@ -672,9 +673,8 @@ config SMP People using multiprocessor machines who say Y here should also say Y to "Enhanced Real Time Clock Support", below. - See also the <file:Documentation/smp.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available - at <http://www.tldp.org/docs.html#howto>. + See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO + available at <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -882,6 +882,10 @@ endmenu menu "Power management options (EXPERIMENTAL)" depends on EXPERIMENTAL && SYS_SUPPORTS_PM +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !SMP + source kernel/power/Kconfig endmenu @@ -892,8 +896,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/sh/Kconfig.debug" source "security/Kconfig" diff --git a/arch/sh/drivers/pci/Kconfig b/arch/sh/drivers/pci/Kconfig index fbc6f2c8649f..7e816ededed7 100644 --- a/arch/sh/drivers/pci/Kconfig +++ b/arch/sh/drivers/pci/Kconfig @@ -6,11 +6,6 @@ config PCI bus system, i.e. the way the CPU talks to the other stuff inside your box. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config SH_PCIDMA_NONCOHERENT bool "Cache and PCI noncoherent" depends on PCI diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S index 10bec45415ba..719e127a7c05 100644 --- a/arch/sh/kernel/syscalls_32.S +++ b/arch/sh/kernel/syscalls_32.S @@ -338,6 +338,6 @@ ENTRY(sys_call_table) .long sys_epoll_pwait .long sys_utimensat /* 320 */ .long sys_signalfd - .long sys_timerfd + .long sys_ni_syscall .long sys_eventfd .long sys_fallocate diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S index 98a93efe3691..12c7340356ae 100644 --- a/arch/sh/kernel/syscalls_64.S +++ b/arch/sh/kernel/syscalls_64.S @@ -376,6 +376,6 @@ sys_call_table: .long sys_epoll_pwait .long sys_utimensat .long sys_signalfd - .long sys_timerfd /* 350 */ + .long sys_ni_syscall /* 350 */ .long sys_eventfd .long sys_fallocate diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 527adc808ad6..99f8971716d2 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -48,9 +48,8 @@ config SMP Y to "Enhanced Real Time Clock Support", below. The "Advanced Power Management" code will be disabled if you say Y here. - See also the <file:Documentation/smp.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at - <http://www.tldp.org/docs.html#howto>. + See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO + available at <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -63,6 +62,7 @@ config NR_CPUS config SPARC bool default y + select HAVE_OPROFILE # Identify this as a Sparc32 build config SPARC32 @@ -320,8 +320,6 @@ endmenu source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/sparc/Kconfig.debug" source "security/Kconfig" diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 97aa50d1e4ae..ad0ede24ca1d 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -305,7 +305,7 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp) struct resource *res; int order; - /* XXX why are some lenghts signed, others unsigned? */ + /* XXX why are some lengths signed, others unsigned? */ if (len <= 0) { return NULL; } @@ -393,7 +393,7 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba) */ dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction) { - /* XXX why are some lenghts signed, others unsigned? */ + /* XXX why are some lengths signed, others unsigned? */ if (len <= 0) { return 0; } diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S index 55722840859c..ee010f4532a0 100644 --- a/arch/sparc/kernel/systbls.S +++ b/arch/sparc/kernel/systbls.S @@ -79,7 +79,7 @@ sys_call_table: /*295*/ .long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare /*300*/ .long sys_set_robust_list, sys_get_robust_list, sys_migrate_pages, sys_mbind, sys_get_mempolicy /*305*/ .long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait -/*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd, sys_eventfd, sys_fallocate +/*310*/ .long sys_utimensat, sys_signalfd, sys_ni_syscall, sys_eventfd, sys_fallocate #ifdef CONFIG_SUNOS_EMUL /* Now the SunOS syscall table. */ diff --git a/arch/sparc/lib/rwsem.S b/arch/sparc/lib/rwsem.S index 20657744c864..f406b1f22791 100644 --- a/arch/sparc/lib/rwsem.S +++ b/arch/sparc/lib/rwsem.S @@ -7,7 +7,7 @@ #include <asm/ptrace.h> #include <asm/psr.h> - .section .sched.text + .section .sched.text, "ax" .align 4 .globl ___down_read diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 26f5791baa33..a8c6366f05a1 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -8,6 +8,8 @@ mainmenu "Linux/UltraSPARC Kernel Configuration" config SPARC bool default y + select HAVE_OPROFILE + select HAVE_KPROBES config SPARC64 bool @@ -66,7 +68,7 @@ config AUDIT_ARCH bool default y -config ARCH_SETS_UP_PER_CPU_AREA +config HAVE_SETUP_PER_CPU_AREA def_bool y config ARCH_NO_VIRT_TO_BUS @@ -166,9 +168,8 @@ config SMP Y to "Enhanced Real Time Clock Support", below. The "Advanced Power Management" code will be disabled if you say Y here. - See also the <file:Documentation/smp.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at - <http://www.tldp.org/docs.html#howto>. + See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO + available at <http://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. @@ -351,11 +352,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - config PCI_DOMAINS def_bool PCI @@ -470,8 +466,6 @@ source "drivers/sbus/char/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/sparc64/Kconfig.debug" source "security/Kconfig" diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c index 070a4846c0cb..4b9115a4d92e 100644 --- a/arch/sparc64/kernel/iommu.c +++ b/arch/sparc64/kernel/iommu.c @@ -580,7 +580,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist, /* Step 1: Prepare scatter list. */ - npages = prepare_sg(sglist, nelems); + npages = prepare_sg(dev, sglist, nelems); /* Step 2: Allocate a cluster and context, if necessary. */ diff --git a/arch/sparc64/kernel/iommu_common.c b/arch/sparc64/kernel/iommu_common.c index efd5dff85f60..72a4acfe8c7b 100644 --- a/arch/sparc64/kernel/iommu_common.c +++ b/arch/sparc64/kernel/iommu_common.c @@ -4,6 +4,7 @@ * Copyright (C) 1999 David S. Miller (davem@redhat.com) */ +#include <linux/dma-mapping.h> #include "iommu_common.h" /* You are _strongly_ advised to enable the following debugging code @@ -201,21 +202,24 @@ void verify_sglist(struct scatterlist *sglist, int nents, iopte_t *iopte, int np } #endif -unsigned long prepare_sg(struct scatterlist *sg, int nents) +unsigned long prepare_sg(struct device *dev, struct scatterlist *sg, int nents) { struct scatterlist *dma_sg = sg; unsigned long prev; u32 dent_addr, dent_len; + unsigned int max_seg_size; prev = (unsigned long) sg_virt(sg); prev += (unsigned long) (dent_len = sg->length); dent_addr = (u32) ((unsigned long)(sg_virt(sg)) & (IO_PAGE_SIZE - 1UL)); + max_seg_size = dma_get_max_seg_size(dev); while (--nents) { unsigned long addr; sg = sg_next(sg); addr = (unsigned long) sg_virt(sg); - if (! VCONTIG(prev, addr)) { + if (! VCONTIG(prev, addr) || + dent_len + sg->length > max_seg_size) { dma_sg->dma_address = dent_addr; dma_sg->dma_length = dent_len; dma_sg = sg_next(dma_sg); diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h index 75b5a5814522..a90d046e8024 100644 --- a/arch/sparc64/kernel/iommu_common.h +++ b/arch/sparc64/kernel/iommu_common.h @@ -9,6 +9,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/scatterlist.h> +#include <linux/device.h> #include <asm/iommu.h> #include <asm/scatterlist.h> @@ -46,4 +47,4 @@ extern void verify_sglist(struct scatterlist *sg, int nents, iopte_t *iopte, int #define VCONTIG(__X, __Y) (((__X) == (__Y)) || \ (((__X) | (__Y)) << (64UL - PAGE_SHIFT)) == 0UL) -extern unsigned long prepare_sg(struct scatterlist *sg, int nents); +extern unsigned long prepare_sg(struct device *dev, struct scatterlist *sg, int nents); diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 1aa8e044b105..5ea2eab1ccda 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -490,7 +490,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist, goto bad; /* Step 1: Prepare scatter list. */ - npages = prepare_sg(sglist, nelems); + npages = prepare_sg(dev, sglist, nelems); /* Step 2: Allocate a cluster and context, if necessary. */ spin_lock_irqsave(&iommu->lock, flags); @@ -625,8 +625,8 @@ static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm) /* XXX register error interrupt handlers XXX */ } -static unsigned long probe_existing_entries(struct pci_pbm_info *pbm, - struct iommu *iommu) +static unsigned long __init probe_existing_entries(struct pci_pbm_info *pbm, + struct iommu *iommu) { struct iommu_arena *arena = &iommu->arena; unsigned long i, cnt = 0; @@ -653,7 +653,7 @@ static unsigned long probe_existing_entries(struct pci_pbm_info *pbm, return cnt; } -static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm) +static void __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm) { struct iommu *iommu = pbm->iommu; struct property *prop; diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S index 06d10907d8ce..b8058906e727 100644 --- a/arch/sparc64/kernel/systbls.S +++ b/arch/sparc64/kernel/systbls.S @@ -80,7 +80,7 @@ sys_call_table32: .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare /*300*/ .word compat_sys_set_robust_list, compat_sys_get_robust_list, compat_sys_migrate_pages, compat_sys_mbind, compat_sys_get_mempolicy .word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait -/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, compat_sys_timerfd, sys_eventfd, compat_sys_fallocate +/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_ni_syscall, sys_eventfd, compat_sys_fallocate #endif /* CONFIG_COMPAT */ @@ -152,7 +152,7 @@ sys_call_table: .word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare /*300*/ .word sys_set_robust_list, sys_get_robust_list, sys_migrate_pages, sys_mbind, sys_get_mempolicy .word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait -/*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd, sys_eventfd, sys_fallocate +/*310*/ .word sys_utimensat, sys_signalfd, sys_ni_syscall, sys_eventfd, sys_fallocate #if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \ defined(CONFIG_SOLARIS_EMUL_MODULE) diff --git a/arch/sparc64/lib/GENbzero.S b/arch/sparc64/lib/GENbzero.S index f9c71d64eba1..6a4f956a2f7a 100644 --- a/arch/sparc64/lib/GENbzero.S +++ b/arch/sparc64/lib/GENbzero.S @@ -10,7 +10,7 @@ .align 4; \ 99: retl; \ mov %o1, %o0; \ - .section __ex_table; \ + .section __ex_table,"a";\ .align 4; \ .word 98b, 99b; \ .text; \ diff --git a/arch/sparc64/lib/NGbzero.S b/arch/sparc64/lib/NGbzero.S index f10e4529ee37..814d5f7a45e1 100644 --- a/arch/sparc64/lib/NGbzero.S +++ b/arch/sparc64/lib/NGbzero.S @@ -10,7 +10,7 @@ .align 4; \ 99: retl; \ mov %o1, %o0; \ - .section __ex_table; \ + .section __ex_table,"a";\ .align 4; \ .word 98b, 99b; \ .text; \ diff --git a/arch/sparc64/lib/rwsem.S b/arch/sparc64/lib/rwsem.S index 75f0e6b951d6..1a4cc5654de4 100644 --- a/arch/sparc64/lib/rwsem.S +++ b/arch/sparc64/lib/rwsem.S @@ -6,7 +6,7 @@ #include <asm/rwsem-const.h> - .section .sched.text + .section .sched.text, "ax" .globl __down_read __down_read: diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index fbeb55d71e76..523e993ee90c 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1328,6 +1328,11 @@ pgd_t swapper_pg_dir[2048]; static void sun4u_pgprot_init(void); static void sun4v_pgprot_init(void); +/* Dummy function */ +void __init setup_per_cpu_areas(void) +{ +} + void __init paging_init(void) { unsigned long end_pfn, pages_avail, shift, phys_base; diff --git a/arch/um/Kconfig b/arch/um/Kconfig index dd1689b814cb..99e51d059a02 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -68,6 +68,10 @@ config IRQ_RELEASE_METHOD bool default y +config HZ + int + default 100 + menu "UML-specific options" config STATIC_LINK @@ -95,23 +99,6 @@ config LD_SCRIPT_DYN default y depends on !LD_SCRIPT_STATIC -config NET - bool "Networking support" - help - Unless you really know what you are doing, you should say Y here. - The reason is that some programs need kernel networking support even - when running on a stand-alone machine that isn't connected to any - other computer. If you are upgrading from an older kernel, you - should consider updating your networking tools too because changes - in the kernel and the tools often go hand in hand. The tools are - contained in the package net-tools, the location and version number - of which are given in <file:Documentation/Changes>. - - For a general introduction to Linux networking, it is highly - recommended to read the NET-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - source "fs/Kconfig.binfmt" config HOSTFS @@ -145,7 +132,7 @@ config HPPFS by removing or changing anything in /proc which gives away the identity of a UML. - See <http://user-mode-linux.sf.net/hppfs.html> for more information. + See <http://user-mode-linux.sf.net/old/hppfs.html> for more information. You only need this if you are setting up a UML honeypot. Otherwise, it is safe to say 'N' here. @@ -189,8 +176,7 @@ config MAGIC_SYSRQ config SMP bool "Symmetric multi-processing support (EXPERIMENTAL)" default n - #SMP_BROKEN is for x86_64. - depends on EXPERIMENTAL && (!SMP_BROKEN || (BROKEN && SMP_BROKEN)) + depends on BROKEN help This option enables UML SMP support. It is NOT related to having a real SMP box. Not directly, at least. @@ -289,6 +275,4 @@ config INPUT bool default n -source "kernel/Kconfig.instrumentation" - source "arch/um/Kconfig.debug" diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char index 9a78d354f0b4..3a4b396d7979 100644 --- a/arch/um/Kconfig.char +++ b/arch/um/Kconfig.char @@ -18,7 +18,7 @@ config SSL lines on the UML that are usually made to show up on the host as ttys or ptys. - See <http://user-mode-linux.sourceforge.net/input.html> for more + See <http://user-mode-linux.sourceforge.net/old/input.html> for more information and command line examples of how to use this facility. Unless you have a specific reason for disabling this, say Y. diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug index 1f6462ffd3e8..8fce5e536b0f 100644 --- a/arch/um/Kconfig.debug +++ b/arch/um/Kconfig.debug @@ -4,12 +4,12 @@ source "lib/Kconfig.debug" config GPROF bool "Enable gprof support" - depends on DEBUG_INFO + depends on DEBUG_INFO && FRAME_POINTER help This allows profiling of a User-Mode Linux kernel with the gprof utility. - See <http://user-mode-linux.sourceforge.net/gprof.html> for more + See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more details. If you're involved in UML kernel development and want to use gprof, @@ -22,7 +22,7 @@ config GCOV This option allows developers to retrieve coverage data from a UML session. - See <http://user-mode-linux.sourceforge.net/gprof.html> for more + See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more details. If you're involved in UML kernel development and want to use gcov, diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net index 66e50026ade9..9e9a4aaa703d 100644 --- a/arch/um/Kconfig.net +++ b/arch/um/Kconfig.net @@ -14,7 +14,7 @@ config UML_NET For more information, including explanations of the networking and sample configurations, see - <http://user-mode-linux.sourceforge.net/networking.html>. + <http://user-mode-linux.sourceforge.net/old/networking.html>. If you'd like to be able to enable networking in the User-Mode linux environment, say Y; otherwise say N. Note that you must @@ -38,7 +38,7 @@ config UML_NET_ETHERTAP CONFIG_NETLINK_DEV configured as Y or M. For more information, see - <http://user-mode-linux.sourceforge.net/networking.html> That site + <http://user-mode-linux.sourceforge.net/old/networking.html> That site has examples of the UML command line to use to enable Ethertap networking. @@ -72,7 +72,7 @@ config UML_NET_SLIP To use this, your host must support slip devices. For more information, see - <http://user-mode-linux.sourceforge.net/networking.html>. That site + <http://user-mode-linux.sourceforge.net/old/networking.html>. has examples of the UML command line to use to enable slip networking, and details of a few quirks with it. @@ -96,7 +96,7 @@ config UML_NET_DAEMON networking daemon on the host. For more information, see - <http://user-mode-linux.sourceforge.net/networking.html> That site + <http://user-mode-linux.sourceforge.net/old/networking.html> That site has examples of the UML command line to use to enable Daemon networking. @@ -144,7 +144,7 @@ config UML_NET_MCAST To use this, your host kernel(s) must support IP Multicasting. For more information, see - <http://user-mode-linux.sourceforge.net/networking.html> That site + <http://user-mode-linux.sourceforge.net/old/networking.html> That site has examples of the UML command line to use to enable Multicast networking, and notes about the security of this approach. @@ -165,7 +165,7 @@ config UML_NET_PCAP installed in order to build the pcap transport into UML. For more information, see - <http://user-mode-linux.sourceforge.net/networking.html> That site + <http://user-mode-linux.sourceforge.net/old/networking.html> That site has examples of the UML command line to use to enable this option. If you intend to use UML as a network monitor for the host, say diff --git a/arch/um/Makefile b/arch/um/Makefile index ba6813a4aa37..cb4af9bf2074 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -49,7 +49,7 @@ SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH) # # These apply to USER_CFLAGS to. -KBUILD_CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ +KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ -Din6addr_loopback=kernel_in6addr_loopback \ -Din6addr_any=kernel_in6addr_any @@ -58,7 +58,7 @@ KBUILD_AFLAGS += $(ARCH_INCLUDE) USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\ $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \ - -D_FILE_OFFSET_BITS=64 + $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) @@ -130,7 +130,9 @@ CPPFLAGS_vmlinux.lds = -U$(SUBARCH) -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \ # The wrappers will select whether using "malloc" or the kernel allocator. LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc -CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) +LD_FLAGS_CMDLINE = $(foreach opt,$(LDFLAGS),-Wl,$(opt)) + +CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE) define cmd_vmlinux__ $(CC) $(CFLAGS_vmlinux) -o $@ \ -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \ @@ -158,7 +160,7 @@ ifneq ($(KBUILD_SRC),) $(Q)mkdir -p $(objtree)/include/asm-um $(Q)ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@ else - $(Q)cd $(TOPDIR)/$(dir $@) ; \ + $(Q)cd $(srctree)/$(dir $@) ; \ ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@) endif @@ -168,7 +170,7 @@ ifneq ($(KBUILD_SRC),) $(Q)mkdir -p $(objtree)/include/asm-um $(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch else - $(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch + $(Q)cd $(srctree)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch endif $(objtree)/$(ARCH_DIR)/include: diff --git a/arch/um/Makefile-tt b/arch/um/Makefile-tt deleted file mode 100644 index 03f7b10cfd0b..000000000000 --- a/arch/um/Makefile-tt +++ /dev/null @@ -1,5 +0,0 @@ -# -# Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -# Licensed under the GPL -# - diff --git a/arch/um/defconfig b/arch/um/defconfig index f609edede065..86db2862f222 100644 --- a/arch/um/defconfig +++ b/arch/um/defconfig @@ -77,7 +77,7 @@ CONFIG_LD_SCRIPT_DYN=y CONFIG_NET=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m -# CONFIG_HOSTFS is not set +CONFIG_HOSTFS=y # CONFIG_HPPFS is not set CONFIG_MCONSOLE=y CONFIG_MAGIC_SYSRQ=y @@ -188,7 +188,7 @@ CONFIG_CON_CHAN="xterm" CONFIG_SSL_CHAN="pts" CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 +CONFIG_LEGACY_PTY_COUNT=32 # CONFIG_WATCHDOG is not set CONFIG_UML_SOUND=m CONFIG_SOUND=m @@ -508,7 +508,7 @@ CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set -CONFIG_DEBUG_SLAB=y +# CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_SLAB_LEAK is not set # CONFIG_DEBUG_MUTEXES is not set # CONFIG_DEBUG_SPINLOCK is not set diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 83bf15a3dda8..2c898c4d6b6a 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -8,6 +8,7 @@ #include "chan_kern.h" #include "irq_kern.h" #include "irq_user.h" +#include "kern_util.h" #include "os.h" #define LINE_BUFSIZE 4096 @@ -48,7 +49,7 @@ static int write_room(struct line *line) n = line->head - line->tail; if (n <= 0) - n = LINE_BUFSIZE + n; /* The other case */ + n += LINE_BUFSIZE; /* The other case */ return n - 1; } @@ -58,17 +59,10 @@ int line_write_room(struct tty_struct *tty) unsigned long flags; int room; - if (tty->stopped) - return 0; - spin_lock_irqsave(&line->lock, flags); room = write_room(line); spin_unlock_irqrestore(&line->lock, flags); - /*XXX: Warning to remove */ - if (0 == room) - printk(KERN_DEBUG "%s: %s: no room left in buffer\n", - __FUNCTION__,tty->name); return room; } @@ -79,8 +73,7 @@ int line_chars_in_buffer(struct tty_struct *tty) int ret; spin_lock_irqsave(&line->lock, flags); - - /*write_room subtracts 1 for the needed NULL, so we readd it.*/ + /* write_room subtracts 1 for the needed NULL, so we readd it.*/ ret = LINE_BUFSIZE - (write_room(line) + 1); spin_unlock_irqrestore(&line->lock, flags); @@ -184,10 +177,6 @@ void line_flush_buffer(struct tty_struct *tty) unsigned long flags; int err; - /*XXX: copied from line_write, verify if it is correct!*/ - if (tty->stopped) - return; - spin_lock_irqsave(&line->lock, flags); err = flush_buffer(line); spin_unlock_irqrestore(&line->lock, flags); @@ -213,9 +202,6 @@ int line_write(struct tty_struct *tty, const unsigned char *buf, int len) unsigned long flags; int n, ret = 0; - if (tty->stopped) - return 0; - spin_lock_irqsave(&line->lock, flags); if (line->head != line->tail) ret = buffer_data(line, buf, len); @@ -788,9 +774,11 @@ static irqreturn_t winch_interrupt(int irq, void *data) tty = winch->tty; if (tty != NULL) { line = tty->driver_data; - chan_window_size(&line->chan_list, &tty->winsize.ws_row, - &tty->winsize.ws_col); - kill_pgrp(tty->pgrp, SIGWINCH, 1); + if (line != NULL) { + chan_window_size(&line->chan_list, &tty->winsize.ws_row, + &tty->winsize.ws_col); + kill_pgrp(tty->pgrp, SIGWINCH, 1); + } } out: if (winch->fd != -1) diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 0f3c7d14a6e3..ebb265c07e4d 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -1,23 +1,25 @@ /* * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) - * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + * Copyright (C) 2001 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include "linux/console.h" -#include "linux/ctype.h" -#include "linux/interrupt.h" -#include "linux/list.h" -#include "linux/mm.h" -#include "linux/module.h" -#include "linux/notifier.h" -#include "linux/reboot.h" -#include "linux/proc_fs.h" -#include "linux/slab.h" -#include "linux/syscalls.h" -#include "linux/utsname.h" -#include "linux/workqueue.h" -#include "asm/uaccess.h" +#include <linux/console.h> +#include <linux/ctype.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/notifier.h> +#include <linux/reboot.h> +#include <linux/proc_fs.h> +#include <linux/slab.h> +#include <linux/syscalls.h> +#include <linux/utsname.h> +#include <linux/workqueue.h> +#include <linux/mutex.h> +#include <asm/uaccess.h> + #include "init.h" #include "irq_kern.h" #include "irq_user.h" @@ -305,7 +307,9 @@ void mconsole_stop(struct mc_request *req) deactivate_fd(req->originating_fd, MCONSOLE_IRQ); os_set_fd_block(req->originating_fd, 1); mconsole_reply(req, "stopped", 0, 0); - while (mconsole_get_request(req->originating_fd, req)) { + for (;;) { + if (!mconsole_get_request(req->originating_fd, req)) + continue; if (req->cmd->handler == mconsole_go) break; if (req->cmd->handler == mconsole_stop) { @@ -358,7 +362,7 @@ struct unplugged_pages { void *pages[UNPLUGGED_PER_PAGE]; }; -static DECLARE_MUTEX(plug_mem_mutex); +static DEFINE_MUTEX(plug_mem_mutex); static unsigned long long unplugged_pages_count = 0; static LIST_HEAD(unplugged_pages); static int unplug_index = UNPLUGGED_PER_PAGE; @@ -394,7 +398,7 @@ static int mem_config(char *str, char **error_out) diff /= PAGE_SIZE; - down(&plug_mem_mutex); + mutex_lock(&plug_mem_mutex); for (i = 0; i < diff; i++) { struct unplugged_pages *unplugged; void *addr; @@ -451,7 +455,7 @@ static int mem_config(char *str, char **error_out) err = 0; out_unlock: - up(&plug_mem_mutex); + mutex_unlock(&plug_mem_mutex); out: return err; } @@ -741,7 +745,6 @@ void mconsole_stack(struct mc_request *req) { char *ptr = req->request.data; int pid_requested= -1; - struct task_struct *from = NULL; struct task_struct *to = NULL; /* @@ -763,9 +766,7 @@ void mconsole_stack(struct mc_request *req) return; } - from = current; - - to = find_task_by_pid(pid_requested); + to = find_task_by_pid_ns(pid_requested, &init_pid_ns); if ((to == NULL) || (pid_requested == 0)) { mconsole_reply(req, "Couldn't find that pid", 1, 0); return; @@ -795,6 +796,8 @@ static int __init mconsole_init(void) printk(KERN_ERR "Failed to initialize management console\n"); return 1; } + if (os_set_fd_block(sock, 0)) + goto out; register_reboot_notifier(&reboot_notifier); @@ -803,7 +806,7 @@ static int __init mconsole_init(void) "mconsole", (void *)sock); if (err) { printk(KERN_ERR "Failed to get IRQ for management console\n"); - return 1; + goto out; } if (notify_socket != NULL) { @@ -819,6 +822,10 @@ static int __init mconsole_init(void) printk(KERN_INFO "mconsole (version %d) initialized on %s\n", MCONSOLE_VERSION, mconsole_socket_name); return 0; + + out: + os_close_file(sock); + return 1; } __initcall(mconsole_init); diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index 430c024a19b0..13af2f03ed84 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -83,9 +83,8 @@ int mconsole_get_request(int fd, struct mc_request *req) int len; req->originlen = sizeof(req->origin); - req->len = recvfrom(fd, &req->request, sizeof(req->request), - MSG_DONTWAIT, (struct sockaddr *) req->origin, - &req->originlen); + req->len = recvfrom(fd, &req->request, sizeof(req->request), 0, + (struct sockaddr *) req->origin, &req->originlen); if (req->len < 0) return 0; diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index 3c6c44ca1ffa..1e8f41a99511 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c @@ -318,7 +318,7 @@ static void setup_etheraddr(char *str, unsigned char *addr, char *name) if (str == NULL) goto random; - for (i = 0;i < 6; i++) { + for (i = 0; i < 6; i++) { addr[i] = simple_strtoul(str, &end, 16); if ((end == str) || ((*end != ':') && (*end != ',') && (*end != '\0'))) { @@ -343,14 +343,13 @@ static void setup_etheraddr(char *str, unsigned char *addr, char *name) } if (!is_local_ether_addr(addr)) { printk(KERN_WARNING - "Warning: attempt to assign a globally valid ethernet " + "Warning: Assigning a globally valid ethernet " "address to a device\n"); - printk(KERN_WARNING "You should better enable the 2nd " - "rightmost bit in the first byte of the MAC,\n"); + printk(KERN_WARNING "You should set the 2nd rightmost bit in " + "the first byte of the MAC,\n"); printk(KERN_WARNING "i.e. %02x:%02x:%02x:%02x:%02x:%02x\n", addr[0] | 0x02, addr[1], addr[2], addr[3], addr[4], addr[5]); - goto random; } return; @@ -368,7 +367,6 @@ static struct platform_driver uml_net_driver = { .name = DRIVER_NAME, }, }; -static int driver_registered; static void net_device_release(struct device *dev) { @@ -383,6 +381,12 @@ static void net_device_release(struct device *dev) free_netdev(netdev); } +/* + * Ensures that platform_driver_register is called only once by + * eth_configure. Will be set in an initcall. + */ +static int driver_registered; + static void eth_configure(int n, void *init, char *mac, struct transport *transport) { diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c index 29185cad9fff..abf2653f5517 100644 --- a/arch/um/drivers/net_user.c +++ b/arch/um/drivers/net_user.c @@ -201,7 +201,7 @@ static int change_tramp(char **argv, char *output, int output_len) close(fds[1]); if (pid > 0) - helper_wait(pid, 0, "change_tramp"); + helper_wait(pid); return pid; } diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c index 330543b3129b..19930081d3d8 100644 --- a/arch/um/drivers/port_kern.c +++ b/arch/um/drivers/port_kern.c @@ -6,6 +6,7 @@ #include "linux/completion.h" #include "linux/interrupt.h" #include "linux/list.h" +#include "linux/mutex.h" #include "asm/atomic.h" #include "init.h" #include "irq_kern.h" @@ -120,7 +121,7 @@ static int port_accept(struct port_list *port) return 0; } -static DECLARE_MUTEX(ports_sem); +static DEFINE_MUTEX(ports_mutex); static LIST_HEAD(ports); static void port_work_proc(struct work_struct *unused) @@ -161,7 +162,7 @@ void *port_data(int port_num) struct port_dev *dev = NULL; int fd; - down(&ports_sem); + mutex_lock(&ports_mutex); list_for_each(ele, &ports) { port = list_entry(ele, struct port_list, list); if (port->port == port_num) @@ -216,7 +217,7 @@ void *port_data(int port_num) out_free: kfree(port); out: - up(&ports_sem); + mutex_unlock(&ports_mutex); return dev; } diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index e942e836f995..71f0959c1535 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c @@ -5,6 +5,7 @@ * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. */ +#include <linux/sched.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/miscdevice.h> diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c index b8711e50da80..8b80505a3fb0 100644 --- a/arch/um/drivers/slip_user.c +++ b/arch/um/drivers/slip_user.c @@ -109,7 +109,7 @@ static int slip_tramp(char **argv, int fd) read_output(fds[0], output, output_len); printk("%s", output); - err = helper_wait(pid, 0, argv[0]); + err = helper_wait(pid); close(fds[0]); out_free: diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c index 89c1be225fda..a0ada8fec72a 100644 --- a/arch/um/drivers/slirp_user.c +++ b/arch/um/drivers/slirp_user.c @@ -98,7 +98,7 @@ static void slirp_close(int fd, void *data) "(%d)\n", pri->pid, errno); } #endif - err = helper_wait(pri->pid, 1, "slirp_close"); + err = helper_wait(pri->pid); if (err < 0) return; diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index 875d60d0c6a2..f1786e64607f 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -15,7 +15,6 @@ #include "line.h" #include "ssl.h" #include "chan_kern.h" -#include "kern_util.h" #include "kern.h" #include "init.h" #include "irq_user.h" diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 656036e90b19..cec0c33cdd39 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -22,7 +22,6 @@ #include "stdio_console.h" #include "line.h" #include "chan_kern.h" -#include "kern_util.h" #include "irq_user.h" #include "mconsole_kern.h" #include "init.h" diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 99f9f9605e9c..be3a2797dac4 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -49,6 +49,7 @@ #include "irq_user.h" #include "irq_kern.h" #include "ubd_user.h" +#include "kern_util.h" #include "os.h" #include "mem.h" #include "mem_kern.h" @@ -229,7 +230,7 @@ static int proc_ide_read_media(char *page, char **start, off_t off, int count, return len; } -static void make_ide_entries(char *dev_name) +static void make_ide_entries(const char *dev_name) { struct proc_dir_entry *dir, *ent; char name[64]; @@ -244,7 +245,7 @@ static void make_ide_entries(char *dev_name) ent->data = NULL; ent->read_proc = proc_ide_read_media; ent->write_proc = NULL; - sprintf(name,"ide0/%s", dev_name); + snprintf(name, sizeof(name), "ide0/%s", dev_name); proc_symlink(dev_name, proc_ide_root, name); } @@ -437,7 +438,10 @@ __uml_help(ubd_setup, " machine by running 'dd' on the device. <n> must be in the range\n" " 0 to 7. Appending an 'r' to the number will cause that device\n" " to be mounted read-only. For example ubd1r=./ext_fs. Appending\n" -" an 's' will cause data to be written to disk on the host immediately.\n\n" +" an 's' will cause data to be written to disk on the host immediately.\n" +" 'c' will cause the device to be treated as being shared between multiple\n" +" UMLs and file locking will be turned off - this is appropriate for a\n" +" cluster filesystem and inappropriate at almost all other times.\n\n" ); static int udb_setup(char *str) @@ -456,20 +460,6 @@ __uml_help(udb_setup, " in the boot output.\n\n" ); -static int fakehd_set = 0; -static int fakehd(char *str) -{ - printk(KERN_INFO "fakehd : Changing ubd name to \"hd\".\n"); - fakehd_set = 1; - return 1; -} - -__setup("fakehd", fakehd); -__uml_help(fakehd, -"fakehd\n" -" Change the ubd device name to \"hd\".\n\n" -); - static void do_ubd_request(struct request_queue * q); /* Only changed by ubd_init, which is an initcall. */ @@ -718,8 +708,10 @@ static int ubd_add(int n, char **error_out) ubd_disk_register(fake_major, ubd_dev->size, n, &fake_gendisk[n]); - /* perhaps this should also be under the "if (fake_major)" above */ - /* using the fake_disk->disk_name and also the fakehd_set name */ + /* + * Perhaps this should also be under the "if (fake_major)" above + * using the fake_disk->disk_name + */ if (fake_ide) make_ide_entries(ubd_gendisk[n]->disk_name); diff --git a/arch/um/drivers/ubd_user.c b/arch/um/drivers/ubd_user.c index 48fc7452bc1d..b591bb9c41dd 100644 --- a/arch/um/drivers/ubd_user.c +++ b/arch/um/drivers/ubd_user.c @@ -16,7 +16,6 @@ #include <sys/mman.h> #include <sys/param.h> #include "asm/types.h" -#include "kern_util.h" #include "user.h" #include "ubd_user.h" #include "os.h" diff --git a/arch/um/drivers/vde_user.c b/arch/um/drivers/vde_user.c index d9941fe5f931..56533db25343 100644 --- a/arch/um/drivers/vde_user.c +++ b/arch/um/drivers/vde_user.c @@ -80,7 +80,7 @@ void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init) vpri->args = kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL); if (vpri->args == NULL) { - printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args" + printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args " "allocation failed"); return; } diff --git a/arch/um/include/arch.h b/arch/um/include/arch.h index 49c601ff2bac..2de92a08a76b 100644 --- a/arch/um/include/arch.h +++ b/arch/um/include/arch.h @@ -10,6 +10,6 @@ extern void arch_check_bugs(void); extern int arch_fixup(unsigned long address, struct uml_pt_regs *regs); -extern int arch_handle_signal(int sig, struct uml_pt_regs *regs); +extern void arch_examine_signal(int sig, struct uml_pt_regs *regs); #endif diff --git a/arch/um/include/as-layout.h b/arch/um/include/as-layout.h index a5cdf953e04a..606bb5c7fdf6 100644 --- a/arch/um/include/as-layout.h +++ b/arch/um/include/as-layout.h @@ -10,23 +10,31 @@ #include "kern_constants.h" /* - * Assembly doesn't want any casting, but C does, so define these - * without casts here, and define new symbols with casts inside the C - * section. + * Stolen from linux/const.h, which can't be directly included since + * this is used in userspace code, which has no access to the kernel + * headers. Changed to be suitable for adding casts to the start, + * rather than "UL" to the end. */ -#define ASM_STUB_CODE (UML_CONFIG_TOP_ADDR - 2 * UM_KERN_PAGE_SIZE) -#define ASM_STUB_DATA (UML_CONFIG_TOP_ADDR - UM_KERN_PAGE_SIZE) -#define ASM_STUB_START ASM_STUB_CODE -/* - * This file is included by the assembly stubs, which just want the - * definitions above. +/* Some constant macros are used in both assembler and + * C code. Therefore we cannot annotate them always with + * 'UL' and other type specifiers unilaterally. We + * use the following macros to deal with this. */ -#ifndef __ASSEMBLY__ -#define STUB_CODE ((unsigned long) ASM_STUB_CODE) -#define STUB_DATA ((unsigned long) ASM_STUB_DATA) -#define STUB_START ((unsigned long) ASM_STUB_START) +#ifdef __ASSEMBLY__ +#define _AC(X, Y) (Y) +#else +#define __AC(X, Y) (X (Y)) +#define _AC(X, Y) __AC(X, Y) +#endif + +#define STUB_START _AC(, 0x100000) +#define STUB_CODE _AC((unsigned long), STUB_START) +#define STUB_DATA _AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE) +#define STUB_END _AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE) + +#ifndef __ASSEMBLY__ #include "sysdep/ptrace.h" diff --git a/arch/um/include/chan_user.h b/arch/um/include/chan_user.h index 5a2263e05bb2..9b9ced85b703 100644 --- a/arch/um/include/chan_user.h +++ b/arch/um/include/chan_user.h @@ -48,7 +48,7 @@ extern void register_winch_irq(int fd, int tty_fd, int pid, #define __channel_help(fn, prefix) \ __uml_help(fn, prefix "[0-9]*=<channel description>\n" \ " Attach a console or serial line to a host channel. See\n" \ -" http://user-mode-linux.sourceforge.net/input.html for a complete\n" \ +" http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \ " description of this switch.\n\n" \ ); diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h index 0edab695ed4e..b54bd35585c2 100644 --- a/arch/um/include/common-offsets.h +++ b/arch/um/include/common-offsets.h @@ -18,6 +18,7 @@ DEFINE_STR(UM_KERN_WARNING, KERN_WARNING); DEFINE_STR(UM_KERN_NOTICE, KERN_NOTICE); DEFINE_STR(UM_KERN_INFO, KERN_INFO); DEFINE_STR(UM_KERN_DEBUG, KERN_DEBUG); +DEFINE_STR(UM_KERN_CONT, KERN_CONT); DEFINE(UM_ELF_CLASS, ELF_CLASS); DEFINE(UM_ELFCLASS32, ELFCLASS32); diff --git a/arch/um/include/init.h b/arch/um/include/init.h index cebc6cae9190..b00a95741d41 100644 --- a/arch/um/include/init.h +++ b/arch/um/include/init.h @@ -40,6 +40,20 @@ typedef int (*initcall_t)(void); typedef void (*exitcall_t)(void); +#ifndef __KERNEL__ +#ifndef __section +# define __section(S) __attribute__ ((__section__(#S))) +#endif + +#if __GNUC_MINOR__ >= 3 +# define __used __attribute__((__used__)) +#else +# define __used __attribute__((__unused__)) +#endif + +#else +#include <linux/compiler.h> +#endif /* These are for everybody (although not all archs will actually discard it in modules) */ #define __init __section(.init.text) @@ -127,14 +141,3 @@ extern struct uml_param __uml_setup_start, __uml_setup_end; #endif #endif /* _LINUX_UML_INIT_H */ - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/include/irq_user.h b/arch/um/include/irq_user.h index 884a9c17eea0..e60b31873de1 100644 --- a/arch/um/include/irq_user.h +++ b/arch/um/include/irq_user.h @@ -14,7 +14,6 @@ struct irq_fd { int fd; int type; int irq; - int pid; int events; int current_events; }; diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index 74ce8e5370a6..3c341222d252 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h @@ -9,107 +9,61 @@ #include "sysdep/ptrace.h" #include "sysdep/faultinfo.h" -typedef void (*kern_hndl)(int, struct uml_pt_regs *); - -struct kern_handlers { - kern_hndl relay_signal; - kern_hndl winch; - kern_hndl bus_handler; - kern_hndl page_fault; - kern_hndl sigio_handler; - kern_hndl timer_handler; -}; - -extern const struct kern_handlers handlinfo_kern; +extern int uml_exitcode; extern int ncpus; -extern char *gdb_init; extern int kmalloc_ok; -extern int jail; -extern int nsyscalls; -#define UML_ROUND_DOWN(addr) ((void *)(((unsigned long) addr) & PAGE_MASK)) #define UML_ROUND_UP(addr) \ - UML_ROUND_DOWN(((unsigned long) addr) + PAGE_SIZE - 1) + ((((unsigned long) addr) + PAGE_SIZE - 1) & PAGE_MASK) -extern int kernel_fork(unsigned long flags, int (*fn)(void *), void * arg); -extern int kernel_thread_proc(void *data); -extern void syscall_segv(int sig); -extern int current_pid(void); extern unsigned long alloc_stack(int order, int atomic); +extern void free_stack(unsigned long stack, int order); + extern int do_signal(void); -extern int is_stack_fault(unsigned long sp); +extern void copy_sc(struct uml_pt_regs *regs, void *from); +extern void interrupt_end(void); +extern void relay_signal(int sig, struct uml_pt_regs *regs); + extern unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, struct uml_pt_regs *regs); extern int handle_page_fault(unsigned long address, unsigned long ip, int is_write, int is_user, int *code_out); -extern void syscall_ready(void); -extern void set_tracing(void *t, int tracing); -extern int is_tracing(void *task); -extern int segv_syscall(void); -extern void kern_finish_exec(void *task, int new_pid, unsigned long stack); -extern unsigned long page_mask(void); -extern int need_finish_fork(void); -extern void free_stack(unsigned long stack, int order); -extern void add_input_request(int op, void (*proc)(int), void *arg); -extern char *current_cmd(void); -extern void timer_handler(int sig, struct uml_pt_regs *regs); -extern int set_signals(int enable); -extern int pid_to_processor_id(int pid); -extern void deliver_signals(void *t); -extern int next_trap_index(int max); -extern void default_idle(void); -extern void finish_fork(void); -extern void paging_init(void); -extern void init_flush_vm(void); -extern void *syscall_sp(void *t); -extern void syscall_trace(struct uml_pt_regs *regs, int entryexit); + extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs); -extern void interrupt_end(void); -extern void initial_thread_cb(void (*proc)(void *), void *arg); -extern int debugger_signal(int status, int pid); -extern void debugger_parent_signal(int status, int pid); -extern void child_signal(int pid, int status); -extern int init_ptrace_proxy(int idle_pid, int startup, int stop); -extern int init_parent_proxy(int pid); -extern int singlestepping(void *t); -extern void check_stack_overflow(void *ptr); -extern void relay_signal(int sig, struct uml_pt_regs *regs); -extern int user_context(unsigned long sp); -extern void timer_irq(struct uml_pt_regs *regs); -extern void do_uml_exitcalls(void); -extern int attach_debugger(int idle_pid, int pid, int stop); -extern int config_gdb(char *str); -extern int remove_gdb(void); -extern char *uml_strdup(char *string); -extern void unprotect_kernel_mem(void); -extern void protect_kernel_mem(void); -extern void uml_cleanup(void); -extern void lock_signalled_task(void *t); -extern void IPI_handler(int cpu); -extern int jail_setup(char *line, int *add); -extern void *get_init_task(void); -extern int clear_user_proc(void *buf, int size); -extern int copy_to_user_proc(void *to, void *from, int size); -extern int copy_from_user_proc(void *to, void *from, int size); -extern int strlen_user_proc(char *str); -extern long execute_syscall(void *r); extern int smp_sigio_handler(void); -extern void *get_current(void); -extern struct task_struct *get_task(int pid, int require); -extern void machine_halt(void); +extern void initial_thread_cb(void (*proc)(void *), void *arg); extern int is_syscall(unsigned long addr); +extern void timer_handler(int sig, struct uml_pt_regs *regs); -extern void free_irq(unsigned int, void *); -extern int cpu(void); +extern void timer_handler(int sig, struct uml_pt_regs *regs); -extern void time_init_kern(void); +extern int start_uml(void); +extern void paging_init(void); -/* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */ +extern void uml_cleanup(void); +extern void do_uml_exitcalls(void); + +/* + * Are we disallowed to sleep? Used to choose between GFP_KERNEL and + * GFP_ATOMIC. + */ extern int __cant_sleep(void); -extern void sigio_handler(int sig, struct uml_pt_regs *regs); -extern void copy_sc(struct uml_pt_regs *regs, void *from); +extern void *get_current(void); +extern int copy_from_user_proc(void *to, void *from, int size); +extern int cpu(void); +extern char *uml_strdup(const char *string); + extern unsigned long to_irq_stack(unsigned long *mask_out); -unsigned long from_irq_stack(int nested); -extern int start_uml(void); +extern unsigned long from_irq_stack(int nested); + +extern void syscall_trace(struct uml_pt_regs *regs, int entryexit); +extern int singlestepping(void *t); + +extern void segv_handler(int sig, struct uml_pt_regs *regs); +extern void bus_handler(int sig, struct uml_pt_regs *regs); +extern void winch(int sig, struct uml_pt_regs *regs); +extern void fatal_sigsegv(void) __attribute__ ((noreturn)); + + #endif diff --git a/arch/um/include/mem_user.h b/arch/um/include/mem_user.h index a54514d2cc3a..46384acd547b 100644 --- a/arch/um/include/mem_user.h +++ b/arch/um/include/mem_user.h @@ -46,9 +46,6 @@ extern int iomem_size; #define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1)) -extern unsigned long host_task_size; -extern unsigned long task_size; - extern int init_mem_user(void); extern void setup_memory(void *entry); extern unsigned long find_iomem(char *driver, unsigned long *len_out); @@ -59,9 +56,7 @@ extern void setup_physmem(unsigned long start, unsigned long usable, unsigned long len, unsigned long long highmem); extern void add_iomem(char *name, int fd, unsigned long size); extern unsigned long phys_offset(unsigned long phys); -extern void unmap_physmem(void); extern void map_memory(unsigned long virt, unsigned long phys, unsigned long len, int r, int w, int x); -extern unsigned long get_kmem_end(void); #endif diff --git a/arch/um/include/misc_constants.h b/arch/um/include/misc_constants.h deleted file mode 100644 index 989bc08de36e..000000000000 --- a/arch/um/include/misc_constants.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __MISC_CONSTANT_H_ -#define __MISC_CONSTANT_H_ - -#include <user_constants.h> - -#endif diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 6f0d1c741bca..0b6b62733303 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -8,7 +8,6 @@ #include <stdarg.h> #include "irq_user.h" -#include "kern_util.h" #include "longjmp.h" #include "mm_id.h" #include "sysdep/tls.h" @@ -128,33 +127,31 @@ static inline struct openflags of_cloexec(struct openflags flags) extern int os_stat_file(const char *file_name, struct uml_stat *buf); extern int os_stat_fd(const int fd, struct uml_stat *buf); extern int os_access(const char *file, int mode); -extern int os_get_exec_close(int fd, int *close_on_exec); extern int os_set_exec_close(int fd); extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg); extern int os_get_ifname(int fd, char *namebuf); extern int os_set_slip(int fd); -extern int os_set_owner(int fd, int pid); extern int os_mode_fd(int fd, int mode); extern int os_seek_file(int fd, unsigned long long offset); -extern int os_open_file(char *file, struct openflags flags, int mode); +extern int os_open_file(const char *file, struct openflags flags, int mode); extern int os_read_file(int fd, void *buf, int len); extern int os_write_file(int fd, const void *buf, int count); -extern int os_file_size(char *file, unsigned long long *size_out); -extern int os_file_modtime(char *file, unsigned long *modtime); +extern int os_file_size(const char *file, unsigned long long *size_out); +extern int os_file_modtime(const char *file, unsigned long *modtime); extern int os_pipe(int *fd, int stream, int close_on_exec); -extern int os_set_fd_async(int fd, int owner); +extern int os_set_fd_async(int fd); extern int os_clear_fd_async(int fd); extern int os_set_fd_block(int fd, int blocking); extern int os_accept_connection(int fd); -extern int os_create_unix_socket(char *file, int len, int close_on_exec); +extern int os_create_unix_socket(const char *file, int len, int close_on_exec); extern int os_shutdown_socket(int fd, int r, int w); extern void os_close_file(int fd); extern int os_rcv_fd(int fd, int *helper_pid_out); extern int create_unix_socket(char *file, int len, int close_on_exec); -extern int os_connect_socket(char *name); +extern int os_connect_socket(const char *name); extern int os_file_type(char *file); -extern int os_file_mode(char *file, struct openflags *mode_out); +extern int os_file_mode(const char *file, struct openflags *mode_out); extern int os_lock_file(int fd, int excl); extern void os_flush_stdout(void); extern int os_stat_filesystem(char *path, long *bsize_out, @@ -168,14 +165,10 @@ extern int os_fchange_dir(int fd); /* start_up.c */ extern void os_early_checks(void); -extern int can_do_skas(void); +extern void can_do_skas(void); extern void os_check_bugs(void); extern void check_host_supports_tls(int *supports_tls, int *tls_min); -/* Make sure they are clear when running in TT mode. Required by - * SEGV_MAYBE_FIXABLE */ -#define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0) - /* mem.c */ extern int create_mem_file(unsigned long long len); @@ -214,7 +207,7 @@ extern int execvp_noalloc(char *buf, const char *file, char *const argv[]); extern int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv); extern int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags, unsigned long *stack_out); -extern int helper_wait(int pid, int nohang, char *pname); +extern int helper_wait(int pid); /* tls.c */ @@ -237,16 +230,12 @@ extern void unblock_signals(void); extern int get_signals(void); extern int set_signals(int enable); -/* trap.c */ -extern void os_fill_handlinfo(struct kern_handlers h); - /* util.c */ extern void stack_protections(unsigned long address); extern int raw(int fd); extern void setup_machinename(char *machine_out); extern void setup_hostinfo(char *buf, int len); -extern int setjmp_wrapper(void (*proc)(void *, void *), ...); -extern void os_dump_core(void); +extern void os_dump_core(void) __attribute__ ((noreturn)); /* time.c */ extern void idle_sleep(unsigned long long nsecs); @@ -275,11 +264,9 @@ extern int protect(struct mm_id * mm_idp, unsigned long addr, extern int is_skas_winch(int pid, int fd, void *data); extern int start_userspace(unsigned long stub_stack); extern int copy_context_skas0(unsigned long stack, int pid); -extern void save_registers(int pid, struct uml_pt_regs *regs); -extern void restore_registers(int pid, struct uml_pt_regs *regs); extern void userspace(struct uml_pt_regs *regs); -extern void map_stub_pages(int fd, unsigned long code, - unsigned long data, unsigned long stack); +extern int map_stub_pages(int fd, unsigned long code, unsigned long data, + unsigned long stack); extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); extern void switch_threads(jmp_buf *me, jmp_buf *you); extern int start_idle_thread(void *stack, jmp_buf *switch_buf); @@ -298,16 +285,12 @@ extern void os_free_irq_later(struct irq_fd *active_fds, extern int os_get_pollfd(int i); extern void os_set_pollfd(int i, int fd); extern void os_set_ioignore(void); -extern void init_irq_signals(int on_sigstack); /* sigio.c */ extern int add_sigio_fd(int fd); extern int ignore_sigio_fd(int fd); extern void maybe_sigio_broken(int fd, int read); -/* skas/trap */ -extern void sig_handler_common_skas(int sig, void *sc_ptr); - /* sys-x86_64/prctl.c */ extern int os_arch_prctl(int pid, int code, unsigned long *addr); diff --git a/arch/um/include/ptrace_user.h b/arch/um/include/ptrace_user.h index f3450e6bc18d..4bce6e012889 100644 --- a/arch/um/include/ptrace_user.h +++ b/arch/um/include/ptrace_user.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -10,12 +10,6 @@ extern int ptrace_getregs(long pid, unsigned long *regs_out); extern int ptrace_setregs(long pid, unsigned long *regs_in); -extern int ptrace_getfpregs(long pid, unsigned long *regs_out); -extern int ptrace_setfpregs(long pid, unsigned long *regs); -extern void arch_enter_kernel(void *task, int pid); -extern void arch_leave_kernel(void *task, int pid); -extern void ptrace_pokeuser(unsigned long addr, unsigned long data); - /* syscall emulation path in ptrace */ @@ -54,7 +48,8 @@ extern int sysemu_supported; (((int[3][3] ) { \ { PTRACE_SYSCALL, PTRACE_SYSCALL, PTRACE_SINGLESTEP }, \ { PTRACE_SYSEMU, PTRACE_SYSEMU, PTRACE_SINGLESTEP }, \ - { PTRACE_SYSEMU, PTRACE_SYSEMU_SINGLESTEP, PTRACE_SYSEMU_SINGLESTEP }}) \ + { PTRACE_SYSEMU, PTRACE_SYSEMU_SINGLESTEP, \ + PTRACE_SYSEMU_SINGLESTEP } }) \ [sysemu_mode][singlestep_mode]) #endif diff --git a/arch/um/include/registers.h b/arch/um/include/registers.h index 0e27406a43a4..9ea1ae3c8f46 100644 --- a/arch/um/include/registers.h +++ b/arch/um/include/registers.h @@ -9,14 +9,13 @@ #include "sysdep/ptrace.h" #include "sysdep/archsetjmp.h" -extern void init_thread_registers(struct uml_pt_regs *to); extern int save_fp_registers(int pid, unsigned long *fp_regs); extern int restore_fp_registers(int pid, unsigned long *fp_regs); extern int save_fpx_registers(int pid, unsigned long *fp_regs); extern int restore_fpx_registers(int pid, unsigned long *fp_regs); -extern void save_registers(int pid, struct uml_pt_regs *regs); -extern void restore_registers(int pid, struct uml_pt_regs *regs); -extern void init_registers(int pid); +extern int save_registers(int pid, struct uml_pt_regs *regs); +extern int restore_registers(int pid, struct uml_pt_regs *regs); +extern int init_registers(int pid); extern void get_safe_registers(unsigned long *regs); extern unsigned long get_thread_reg(int reg, jmp_buf *buf); diff --git a/arch/um/include/signal_kern.h b/arch/um/include/signal_kern.h deleted file mode 100644 index aeb5d5ab1dfd..000000000000 --- a/arch/um/include/signal_kern.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __SIGNAL_KERN_H__ -#define __SIGNAL_KERN_H__ - -extern int have_signals(void *t); - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/include/skas/mode-skas.h b/arch/um/include/skas/mode-skas.h deleted file mode 100644 index e065feb000df..000000000000 --- a/arch/um/include/skas/mode-skas.h +++ /dev/null @@ -1,11 +0,0 @@ -/* - * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) - * Licensed under the GPL - */ - -#ifndef __MODE_SKAS_H__ -#define __MODE_SKAS_H__ - -extern void kill_off_processes_skas(void); - -#endif diff --git a/arch/um/include/sysdep-i386/syscalls.h b/arch/um/include/sysdep-i386/syscalls.h index 57bd79efbee3..905698197e35 100644 --- a/arch/um/include/sysdep-i386/syscalls.h +++ b/arch/um/include/sysdep-i386/syscalls.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -18,7 +18,8 @@ extern syscall_handler_t old_mmap_i386; extern syscall_handler_t *sys_call_table[]; #define EXECUTE_SYSCALL(syscall, regs) \ - ((long (*)(struct syscall_args)) (*sys_call_table[syscall]))(SYSCALL_ARGS(®s->regs)) + ((long (*)(struct syscall_args)) \ + (*sys_call_table[syscall]))(SYSCALL_ARGS(®s->regs)) extern long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, diff --git a/arch/um/include/sysdep-x86_64/kernel-offsets.h b/arch/um/include/sysdep-x86_64/kernel-offsets.h index c978b589df41..a307237b7964 100644 --- a/arch/um/include/sysdep-x86_64/kernel-offsets.h +++ b/arch/um/include/sysdep-x86_64/kernel-offsets.h @@ -17,16 +17,7 @@ #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)); -#define __NO_STUBS 1 -#undef __SYSCALL -#undef _ASM_X86_64_UNISTD_H_ -#define __SYSCALL(nr, sym) [nr] = 1, -static char syscalls[] = { -#include <asm/arch/unistd.h> -}; - void foo(void) { #include <common-offsets.h> -DEFINE(UM_NR_syscall_max, sizeof(syscalls) - 1); } diff --git a/arch/um/include/sysdep-x86_64/syscalls.h b/arch/um/include/sysdep-x86_64/syscalls.h index cf72256609e4..7cfb0b085655 100644 --- a/arch/um/include/sysdep-x86_64/syscalls.h +++ b/arch/um/include/sysdep-x86_64/syscalls.h @@ -30,6 +30,4 @@ extern long old_mmap(unsigned long addr, unsigned long len, extern syscall_handler_t sys_modify_ldt; extern syscall_handler_t sys_arch_prctl; -#define NR_syscalls (UM_NR_syscall_max + 1) - #endif diff --git a/arch/um/include/um_mmu.h b/arch/um/include/um_mmu.h index 8855d8df512f..82865fcf6872 100644 --- a/arch/um/include/um_mmu.h +++ b/arch/um/include/um_mmu.h @@ -12,10 +12,6 @@ typedef struct mm_context { struct mm_id id; - unsigned long last_page_table; -#ifdef CONFIG_3_LEVEL_PGTABLES - unsigned long last_pmd; -#endif struct uml_ldt ldt; } mm_context_t; diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h index fdfc06b85605..2b6fc8e0f071 100644 --- a/arch/um/include/um_uaccess.h +++ b/arch/um/include/um_uaccess.h @@ -6,7 +6,9 @@ #ifndef __ARCH_UM_UACCESS_H #define __ARCH_UM_UACCESS_H -#include "asm/fixmap.h" +#include <asm/elf.h> +#include <asm/fixmap.h> +#include "sysdep/archsetjmp.h" #define __under_task_size(addr, size) \ (((unsigned long) (addr) < TASK_SIZE) && \ diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 8196450451cd..76a62c0cb2bc 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -19,12 +19,13 @@ void flush_thread(void) { void *data = NULL; - unsigned long end = proc_mm ? task_size : STUB_START; int ret; arch_flush_thread(¤t->thread.arch); - ret = unmap(¤t->mm->context.id, 0, end, 1, &data); + ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data); + ret = ret || unmap(¤t->mm->context.id, STUB_END, + TASK_SIZE - STUB_END, 1, &data); if (ret) { printk(KERN_ERR "flush_thread - clearing address space failed, " "err = %d\n", ret); diff --git a/arch/um/kernel/exitcode.c b/arch/um/kernel/exitcode.c index c716b5a6db13..984f80e668ca 100644 --- a/arch/um/kernel/exitcode.c +++ b/arch/um/kernel/exitcode.c @@ -1,15 +1,17 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include "linux/kernel.h" -#include "linux/init.h" -#include "linux/ctype.h" -#include "linux/proc_fs.h" -#include "asm/uaccess.h" +#include <linux/ctype.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/proc_fs.h> +#include <linux/types.h> +#include <asm/uaccess.h> -/* If read and write race, the read will still atomically read a valid +/* + * If read and write race, the read will still atomically read a valid * value. */ int uml_exitcode = 0; @@ -19,18 +21,19 @@ static int read_proc_exitcode(char *page, char **start, off_t off, { int len, val; - /* Save uml_exitcode in a local so that we don't need to guarantee + /* + * Save uml_exitcode in a local so that we don't need to guarantee * that sprintf accesses it atomically. */ val = uml_exitcode; len = sprintf(page, "%d\n", val); len -= off; - if(len <= off+count) + if (len <= off+count) *eof = 1; *start = page + off; - if(len > count) + if (len > count) len = count; - if(len < 0) + if (len < 0) len = 0; return len; } @@ -41,11 +44,11 @@ static int write_proc_exitcode(struct file *file, const char __user *buffer, char *end, buf[sizeof("nnnnn\0")]; int tmp; - if(copy_from_user(buf, buffer, count)) + if (copy_from_user(buf, buffer, count)) return -EFAULT; tmp = simple_strtol(buf, &end, 0); - if((*end != '\0') && !isspace(*end)) + if ((*end != '\0') && !isspace(*end)) return -EINVAL; uml_exitcode = tmp; @@ -57,7 +60,7 @@ static int make_proc_exitcode(void) struct proc_dir_entry *ent; ent = create_proc_entry("exitcode", 0600, &proc_root); - if(ent == NULL){ + if (ent == NULL) { printk(KERN_WARNING "make_proc_exitcode : Failed to register " "/proc/exitcode\n"); return 0; diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c index 734f873cab12..72eccd2a4113 100644 --- a/arch/um/kernel/gmon_syms.c +++ b/arch/um/kernel/gmon_syms.c @@ -1,5 +1,5 @@ -/* - * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -8,12 +8,13 @@ extern void __bb_init_func(void *) __attribute__((weak)); EXPORT_SYMBOL(__bb_init_func); -/* This is defined (and referred to in profiling stub code) only by some GCC +/* + * This is defined (and referred to in profiling stub code) only by some GCC * versions in libgcov. * * Since SuSE backported the fix, we cannot handle it depending on GCC version. - * So, unconditionally export it. But also give it a weak declaration, which will - * be overridden by any other one. + * So, unconditionally export it. But also give it a weak declaration, which + * will be overridden by any other one. */ extern void __gcov_init(void *) __attribute__((weak)); diff --git a/arch/um/kernel/gprof_syms.c b/arch/um/kernel/gprof_syms.c index 9244f018d44c..e2f043d0de6c 100644 --- a/arch/um/kernel/gprof_syms.c +++ b/arch/um/kernel/gprof_syms.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -7,14 +7,3 @@ extern void mcount(void); EXPORT_SYMBOL(mcount); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index 16dc43e9d940..fa015565001b 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -7,7 +7,6 @@ #include "linux/bootmem.h" #include "linux/initrd.h" #include "asm/types.h" -#include "kern_util.h" #include "initrd.h" #include "init.h" #include "os.h" @@ -21,18 +20,27 @@ static int __init read_initrd(void) long long size; int err; - if(initrd == NULL) + if (initrd == NULL) return 0; err = os_file_size(initrd, &size); - if(err) + if (err) return 0; + /* + * This is necessary because alloc_bootmem craps out if you + * ask for no memory. + */ + if (size == 0) { + printk(KERN_ERR "\"%\" is a zero-size initrd\n"); + return 0; + } + area = alloc_bootmem(size); - if(area == NULL) + if (area == NULL) return 0; - if(load_initrd(initrd, area, size) == -1) + if (load_initrd(initrd, area, size) == -1) return 0; initrd_start = (unsigned long) area; @@ -59,13 +67,15 @@ int load_initrd(char *filename, void *buf, int size) int fd, n; fd = os_open_file(filename, of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Opening '%s' failed - err = %d\n", filename, -fd); + if (fd < 0) { + printk(KERN_ERR "Opening '%s' failed - err = %d\n", filename, + -fd); return -1; } n = os_read_file(fd, buf, size); - if(n != size){ - printk("Read of %d bytes from '%s' failed, err = %d\n", size, + if (n != size) { + printk(KERN_ERR "Read of %d bytes from '%s' failed, " + "err = %d\n", size, filename, -n); return -1; } diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index ba11ccd6a8a3..91587f8db340 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -107,10 +107,9 @@ int activate_fd(int irq, int fd, int type, void *dev_id) struct pollfd *tmp_pfd; struct irq_fd *new_fd, *irq_fd; unsigned long flags; - int pid, events, err, n; + int events, err, n; - pid = os_getpid(); - err = os_set_fd_async(fd, pid); + err = os_set_fd_async(fd); if (err < 0) goto out; @@ -127,7 +126,6 @@ int activate_fd(int irq, int fd, int type, void *dev_id) .fd = fd, .type = type, .irq = irq, - .pid = pid, .events = events, .current_events = 0 } ); diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index 7c7142ba3bd7..5311ee93ede3 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c @@ -18,15 +18,11 @@ EXPORT_SYMBOL(set_signals); EXPORT_SYMBOL(get_signals); EXPORT_SYMBOL(kernel_thread); EXPORT_SYMBOL(sys_waitpid); -EXPORT_SYMBOL(task_size); EXPORT_SYMBOL(flush_tlb_range); -EXPORT_SYMBOL(host_task_size); EXPORT_SYMBOL(arch_validate); -EXPORT_SYMBOL(get_kmem_end); EXPORT_SYMBOL(high_physmem); EXPORT_SYMBOL(empty_zero_page); -EXPORT_SYMBOL(um_virt_to_phys); EXPORT_SYMBOL(handle_page_fault); EXPORT_SYMBOL(find_iomem); @@ -40,7 +36,6 @@ EXPORT_SYMBOL(uml_strdup); EXPORT_SYMBOL(os_stat_fd); EXPORT_SYMBOL(os_stat_file); EXPORT_SYMBOL(os_access); -EXPORT_SYMBOL(os_get_exec_close); EXPORT_SYMBOL(os_set_exec_close); EXPORT_SYMBOL(os_getpid); EXPORT_SYMBOL(os_open_file); diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 59822dee438a..d872fdce1d7e 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -1,49 +1,41 @@ /* - * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com) + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include "linux/stddef.h" -#include "linux/kernel.h" -#include "linux/mm.h" -#include "linux/bootmem.h" -#include "linux/swap.h" -#include "linux/highmem.h" -#include "linux/gfp.h" -#include "asm/page.h" -#include "asm/fixmap.h" -#include "asm/pgalloc.h" -#include "kern_util.h" +#include <linux/stddef.h> +#include <linux/bootmem.h> +#include <linux/gfp.h> +#include <linux/highmem.h> +#include <linux/mm.h> +#include <linux/swap.h> +#include <asm/fixmap.h> +#include <asm/page.h> #include "as-layout.h" +#include "init.h" #include "kern.h" +#include "kern_util.h" #include "mem_user.h" -#include "um_uaccess.h" #include "os.h" -#include "linux/types.h" -#include "linux/string.h" -#include "init.h" -#include "kern_constants.h" /* allocated in paging_init, zeroed in mem_init, and unchanged thereafter */ unsigned long *empty_zero_page = NULL; /* allocated in paging_init and unchanged thereafter */ unsigned long *empty_bad_page = NULL; + +/* + * Initialized during boot, and readonly for initializing page tables + * afterwards + */ pgd_t swapper_pg_dir[PTRS_PER_PGD]; + +/* Initialized at boot time, and readonly after that */ unsigned long long highmem; int kmalloc_ok = 0; +/* Used during early boot */ static unsigned long brk_end; -void unmap_physmem(void) -{ - os_unmap_memory((void *) brk_end, uml_reserved - brk_end); -} - -static void map_cb(void *unused) -{ - map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0); -} - #ifdef CONFIG_HIGHMEM static void setup_highmem(unsigned long highmem_start, unsigned long highmem_len) @@ -53,7 +45,7 @@ static void setup_highmem(unsigned long highmem_start, int i; highmem_pfn = __pa(highmem_start) >> PAGE_SHIFT; - for(i = 0; i < highmem_len >> PAGE_SHIFT; i++){ + for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) { page = &mem_map[highmem_pfn + i]; ClearPageReserved(page); init_page_count(page); @@ -65,14 +57,13 @@ static void setup_highmem(unsigned long highmem_start, void __init mem_init(void) { /* clear the zero-page */ - memset((void *) empty_zero_page, 0, PAGE_SIZE); + memset(empty_zero_page, 0, PAGE_SIZE); /* Map in the area just after the brk now that kmalloc is about * to be turned on. */ brk_end = (unsigned long) UML_ROUND_UP(sbrk(0)); - map_cb(NULL); - initial_thread_cb(map_cb, NULL); + map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0); free_bootmem(__pa(brk_end), uml_reserved - brk_end); uml_reserved = brk_end; @@ -85,7 +76,7 @@ void __init mem_init(void) #endif num_physpages = totalram_pages; max_pfn = totalram_pages; - printk(KERN_INFO "Memory: %luk available\n", + printk(KERN_INFO "Memory: %luk available\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT-10)); kmalloc_ok = 1; @@ -119,7 +110,7 @@ static void __init one_md_table_init(pud_t *pud) #endif } -static void __init fixrange_init(unsigned long start, unsigned long end, +static void __init fixrange_init(unsigned long start, unsigned long end, pgd_t *pgd_base) { pgd_t *pgd; @@ -138,7 +129,7 @@ static void __init fixrange_init(unsigned long start, unsigned long end, if (pud_none(*pud)) one_md_table_init(pud); pmd = pmd_offset(pud, vaddr); - for (; (j < PTRS_PER_PMD) && (vaddr != end); pmd++, j++) { + for (; (j < PTRS_PER_PMD) && (vaddr < end); pmd++, j++) { one_page_table_init(pmd); vaddr += PMD_SIZE; } @@ -152,7 +143,7 @@ pgprot_t kmap_prot; #define kmap_get_fixmap_pte(vaddr) \ pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)),\ - (vaddr)), (vaddr)) + (vaddr)), (vaddr)) static void __init kmap_init(void) { @@ -197,21 +188,23 @@ static void __init fixaddr_user_init( void) pud_t *pud; pmd_t *pmd; pte_t *pte; - unsigned long paddr, vaddr = FIXADDR_USER_START; + phys_t p; + unsigned long v, vaddr = FIXADDR_USER_START; - if ( ! size ) + if (!size) return; fixrange_init( FIXADDR_USER_START, FIXADDR_USER_END, swapper_pg_dir); - paddr = (unsigned long)alloc_bootmem_low_pages( size); - memcpy( (void *)paddr, (void *)FIXADDR_USER_START, size); - paddr = __pa(paddr); - for ( ; size > 0; size-=PAGE_SIZE, vaddr+=PAGE_SIZE, paddr+=PAGE_SIZE){ + v = (unsigned long) alloc_bootmem_low_pages(size); + memcpy((void *) v , (void *) FIXADDR_USER_START, size); + p = __pa(v); + for ( ; size > 0; size -= PAGE_SIZE, vaddr += PAGE_SIZE, + p += PAGE_SIZE) { pgd = swapper_pg_dir + pgd_index(vaddr); pud = pud_offset(pgd, vaddr); pmd = pmd_offset(pud, vaddr); pte = pte_offset_kernel(pmd, vaddr); - pte_set_val( (*pte), paddr, PAGE_READONLY); + pte_set_val(*pte, p, PAGE_READONLY); } #endif } @@ -223,7 +216,7 @@ void __init paging_init(void) empty_zero_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE); empty_bad_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE); - for(i = 0; i < ARRAY_SIZE(zones_size); i++) + for (i = 0; i < ARRAY_SIZE(zones_size); i++) zones_size[i] = 0; zones_size[ZONE_NORMAL] = (end_iomem >> PAGE_SHIFT) - @@ -253,32 +246,33 @@ struct page *arch_validate(struct page *page, gfp_t mask, int order) int i; again: - if(page == NULL) + if (page == NULL) return page; - if(PageHighMem(page)) + if (PageHighMem(page)) return page; addr = (unsigned long) page_address(page); - for(i = 0; i < (1 << order); i++){ + for (i = 0; i < (1 << order); i++) { current->thread.fault_addr = (void *) addr; - if(__do_copy_to_user((void __user *) addr, &zero, + if (__do_copy_to_user((void __user *) addr, &zero, sizeof(zero), ¤t->thread.fault_addr, - ¤t->thread.fault_catcher)){ - if(!(mask & __GFP_WAIT)) + ¤t->thread.fault_catcher)) { + if (!(mask & __GFP_WAIT)) return NULL; else break; } addr += PAGE_SIZE; } - if(i == (1 << order)) + if (i == (1 << order)) return page; page = alloc_pages(mask, order); goto again; } -/* This can't do anything because nothing in the kernel image can be freed +/* + * This can't do anything because nothing in the kernel image can be freed * since it's not in kernel physical memory. */ @@ -290,8 +284,8 @@ void free_initmem(void) void free_initrd_mem(unsigned long start, unsigned long end) { if (start < end) - printk ("Freeing initrd memory: %ldk freed\n", - (end - start) >> 10); + printk(KERN_INFO "Freeing initrd memory: %ldk freed\n", + (end - start) >> 10); for (; start < end; start += PAGE_SIZE) { ClearPageReserved(virt_to_page(start)); init_page_count(virt_to_page(start)); @@ -308,32 +302,31 @@ void show_mem(void) int highmem = 0; struct page *page; - printk("Mem-info:\n"); + printk(KERN_INFO "Mem-info:\n"); show_free_areas(); - printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); + printk(KERN_INFO "Free swap: %6ldkB\n", + nr_swap_pages<<(PAGE_SHIFT-10)); pfn = max_mapnr; - while(pfn-- > 0) { + while (pfn-- > 0) { page = pfn_to_page(pfn); total++; - if(PageHighMem(page)) + if (PageHighMem(page)) highmem++; - if(PageReserved(page)) + if (PageReserved(page)) reserved++; - else if(PageSwapCache(page)) + else if (PageSwapCache(page)) cached++; - else if(page_count(page)) + else if (page_count(page)) shared += page_count(page) - 1; } - printk("%d pages of RAM\n", total); - printk("%d pages of HIGHMEM\n", highmem); - printk("%d reserved pages\n", reserved); - printk("%d pages shared\n", shared); - printk("%d pages swap cached\n", cached); + printk(KERN_INFO "%d pages of RAM\n", total); + printk(KERN_INFO "%d pages of HIGHMEM\n", highmem); + printk(KERN_INFO "%d reserved pages\n", reserved); + printk(KERN_INFO "%d pages shared\n", shared); + printk(KERN_INFO "%d pages swap cached\n", cached); } -/* - * Allocate and free page tables. - */ +/* Allocate and free page tables. */ pgd_t *pgd_alloc(struct mm_struct *mm) { @@ -341,14 +334,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm) if (pgd) { memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t)); - memcpy(pgd + USER_PTRS_PER_PGD, - swapper_pg_dir + USER_PTRS_PER_PGD, + memcpy(pgd + USER_PTRS_PER_PGD, + swapper_pg_dir + USER_PTRS_PER_PGD, (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t)); } return pgd; } -void pgd_free(pgd_t *pgd) +void pgd_free(struct mm_struct *mm, pgd_t *pgd) { free_page((unsigned long) pgd); } @@ -368,3 +361,15 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) pte = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); return pte; } + +#ifdef CONFIG_3_LEVEL_PGTABLES +pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) +{ + pmd_t *pmd = (pmd_t *) __get_free_page(GFP_KERNEL); + + if (pmd) + memset(pmd, 0, PAGE_SIZE); + + return pmd; +} +#endif diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c index e66432f42485..9757085a0220 100644 --- a/arch/um/kernel/physmem.c +++ b/arch/um/kernel/physmem.c @@ -55,16 +55,6 @@ int __init init_maps(unsigned long physmem, unsigned long iomem, return 0; } -/* Changed during early boot */ -static unsigned long kmem_top = 0; - -unsigned long get_kmem_end(void) -{ - if (kmem_top == 0) - kmem_top = host_task_size - 1024 * 1024; - return kmem_top; -} - void map_memory(unsigned long virt, unsigned long phys, unsigned long len, int r, int w, int x) { @@ -174,10 +164,10 @@ __uml_setup("iomem=", parse_iomem, * setup_iomem, both of which run during early boot. Afterwards, it's * unchanged. */ -struct iomem_region *iomem_regions = NULL; +struct iomem_region *iomem_regions; -/* Initialized in parse_iomem */ -int iomem_size = 0; +/* Initialized in parse_iomem and unchanged thereafter */ +int iomem_size; unsigned long find_iomem(char *driver, unsigned long *len_out) { diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 0eae00b3e588..c07961bedb75 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -4,19 +4,21 @@ * Licensed under the GPL */ -#include "linux/stddef.h" -#include "linux/err.h" -#include "linux/hardirq.h" -#include "linux/mm.h" -#include "linux/personality.h" -#include "linux/proc_fs.h" -#include "linux/ptrace.h" -#include "linux/random.h" -#include "linux/sched.h" -#include "linux/tick.h" -#include "linux/threads.h" -#include "asm/pgtable.h" -#include "asm/uaccess.h" +#include <linux/stddef.h> +#include <linux/err.h> +#include <linux/hardirq.h> +#include <linux/gfp.h> +#include <linux/mm.h> +#include <linux/personality.h> +#include <linux/proc_fs.h> +#include <linux/ptrace.h> +#include <linux/random.h> +#include <linux/sched.h> +#include <linux/tick.h> +#include <linux/threads.h> +#include <asm/current.h> +#include <asm/pgtable.h> +#include <asm/uaccess.h> #include "as-layout.h" #include "kern_util.h" #include "os.h" @@ -30,7 +32,7 @@ */ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } }; -static inline int external_pid(struct task_struct *task) +static inline int external_pid(void) { /* FIXME: Need to look up userspace_pid by cpu */ return userspace_pid[0]; @@ -40,7 +42,7 @@ int pid_to_processor_id(int pid) { int i; - for(i = 0; i < ncpus; i++) { + for (i = 0; i < ncpus; i++) { if (cpu_tasks[i].pid == pid) return i; } @@ -60,8 +62,6 @@ unsigned long alloc_stack(int order, int atomic) if (atomic) flags = GFP_ATOMIC; page = __get_free_pages(flags, order); - if (page == 0) - return 0; return page; } @@ -80,15 +80,15 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) static inline void set_current(struct task_struct *task) { cpu_tasks[task_thread_info(task)->cpu] = ((struct cpu_task) - { external_pid(task), task }); + { external_pid(), task }); } -extern void arch_switch_to(struct task_struct *from, struct task_struct *to); +extern void arch_switch_to(struct task_struct *to); void *_switch_to(void *prev, void *next, void *last) { struct task_struct *from = prev; - struct task_struct *to= next; + struct task_struct *to = next; to->thread.prev_sched = from; set_current(to); @@ -99,13 +99,13 @@ void *_switch_to(void *prev, void *next, void *last) switch_threads(&from->thread.switch_buf, &to->thread.switch_buf); - arch_switch_to(current->thread.prev_sched, current); + arch_switch_to(current); if (current->thread.saved_task) show_regs(&(current->thread.regs)); - next= current->thread.saved_task; - prev= current; - } while(current->thread.saved_task); + to = current->thread.saved_task; + from = current; + } while (current->thread.saved_task); return current->thread.prev_sched; @@ -163,8 +163,6 @@ void new_thread_handler(void) void fork_handler(void) { force_flush_all(); - if (current->thread.prev_sched == NULL) - panic("blech"); schedule_tail(current->thread.prev_sched); @@ -173,7 +171,7 @@ void fork_handler(void) * arch_switch_to isn't needed. We could want to apply this to * improve performance. -bb */ - arch_switch_to(current->thread.prev_sched, current); + arch_switch_to(current); current->thread.prev_sched = NULL; @@ -204,7 +202,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, arch_copy_thread(¤t->thread.arch, &p->thread.arch); } else { - init_thread_registers(&p->thread.regs.regs); + get_safe_registers(p->thread.regs.regs.gp); p->thread.request.u.thread = current->thread.request.u.thread; handler = new_thread_handler; } @@ -237,7 +235,7 @@ void default_idle(void) { unsigned long long nsecs; - while(1) { + while (1) { /* endless idle loop with no priority at all */ /* @@ -256,53 +254,10 @@ void default_idle(void) void cpu_idle(void) { - cpu_tasks[current_thread->cpu].pid = os_getpid(); + cpu_tasks[current_thread_info()->cpu].pid = os_getpid(); default_idle(); } -void *um_virt_to_phys(struct task_struct *task, unsigned long addr, - pte_t *pte_out) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - pte_t ptent; - - if (task->mm == NULL) - return ERR_PTR(-EINVAL); - pgd = pgd_offset(task->mm, addr); - if (!pgd_present(*pgd)) - return ERR_PTR(-EINVAL); - - pud = pud_offset(pgd, addr); - if (!pud_present(*pud)) - return ERR_PTR(-EINVAL); - - pmd = pmd_offset(pud, addr); - if (!pmd_present(*pmd)) - return ERR_PTR(-EINVAL); - - pte = pte_offset_kernel(pmd, addr); - ptent = *pte; - if (!pte_present(ptent)) - return ERR_PTR(-EINVAL); - - if (pte_out != NULL) - *pte_out = ptent; - return (void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK); -} - -char *current_cmd(void) -{ -#if defined(CONFIG_SMP) || defined(CONFIG_HIGHMEM) - return "(Unknown)"; -#else - void *addr = um_virt_to_phys(current, current->mm->arg_start, NULL); - return IS_ERR(addr) ? "(Unknown)": __va((unsigned long) addr); -#endif -} - void dump_thread(struct pt_regs *regs, struct user *u) { } @@ -317,7 +272,7 @@ int user_context(unsigned long sp) unsigned long stack; stack = sp & (PAGE_MASK << CONFIG_KERNEL_STACK_ORDER); - return stack != (unsigned long) current_thread; + return stack != (unsigned long) current_thread_info(); } extern exitcall_t __uml_exitcall_begin, __uml_exitcall_end; @@ -331,7 +286,7 @@ void do_uml_exitcalls(void) (*call)(); } -char *uml_strdup(char *string) +char *uml_strdup(const char *string) { return kstrdup(string, GFP_KERNEL); } @@ -359,7 +314,7 @@ int strlen_user_proc(char __user *str) int smp_sigio_handler(void) { #ifdef CONFIG_SMP - int cpu = current_thread->cpu; + int cpu = current_thread_info()->cpu; IPI_handler(cpu); if (cpu != 0) return 1; @@ -369,7 +324,7 @@ int smp_sigio_handler(void) int cpu(void) { - return current_thread->cpu; + return current_thread_info()->cpu; } static atomic_t using_sysemu = ATOMIC_INIT(0); @@ -435,7 +390,7 @@ int singlestepping(void * t) { struct task_struct *task = t ? t : current; - if ( ! (task->ptrace & PT_DTRACE) ) + if (!(task->ptrace & PT_DTRACE)) return 0; if (task->thread.singlestep_syscall) @@ -459,3 +414,46 @@ unsigned long arch_align_stack(unsigned long sp) return sp & ~0xf; } #endif + +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long stack_page, sp, ip; + bool seen_sched = 0; + + if ((p == NULL) || (p == current) || (p->state == TASK_RUNNING)) + return 0; + + stack_page = (unsigned long) task_stack_page(p); + /* Bail if the process has no kernel stack for some reason */ + if (stack_page == 0) + return 0; + + sp = p->thread.switch_buf->JB_SP; + /* + * Bail if the stack pointer is below the bottom of the kernel + * stack for some reason + */ + if (sp < stack_page) + return 0; + + while (sp < stack_page + THREAD_SIZE) { + ip = *((unsigned long *) sp); + if (in_sched_functions(ip)) + /* Ignore everything until we're above the scheduler */ + seen_sched = 1; + else if (kernel_text_address(ip) && seen_sched) + return ip; + + sp += sizeof(unsigned long); + } + + return 0; +} + +int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu) +{ + int cpu = current_thread_info()->cpu; + + return save_fp_registers(userspace_pid[cpu], (unsigned long *) fpu); +} + diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c index 04cebcf0679f..00197d3d21ec 100644 --- a/arch/um/kernel/reboot.c +++ b/arch/um/kernel/reboot.c @@ -4,6 +4,7 @@ */ #include "linux/sched.h" +#include "kern_util.h" #include "os.h" #include "skas.h" @@ -11,7 +12,7 @@ void (*pm_power_off)(void); static void kill_off_processes(void) { - if(proc_mm) + if (proc_mm) /* * FIXME: need to loop over userspace_pids */ @@ -21,8 +22,8 @@ static void kill_off_processes(void) int pid, me; me = os_getpid(); - for_each_process(p){ - if(p->mm == NULL) + for_each_process(p) { + if (p->mm == NULL) continue; pid = p->mm->context.id.u.pid; diff --git a/arch/um/kernel/sigio.c b/arch/um/kernel/sigio.c index 89f9866a1354..2b272b63b514 100644 --- a/arch/um/kernel/sigio.c +++ b/arch/um/kernel/sigio.c @@ -1,18 +1,12 @@ /* - * Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ -#include "linux/kernel.h" -#include "linux/list.h" -#include "linux/slab.h" -#include "linux/signal.h" -#include "linux/interrupt.h" -#include "init.h" -#include "sigio.h" -#include "irq_user.h" +#include <linux/interrupt.h> #include "irq_kern.h" #include "os.h" +#include "sigio.h" /* Protected by sigio_lock() called from write_sigio_workaround */ static int sigio_irq_fd = -1; @@ -33,9 +27,9 @@ int write_sigio_irq(int fd) err = um_request_irq(SIGIO_WRITE_IRQ, fd, IRQ_READ, sigio_interrupt, IRQF_DISABLED|IRQF_SAMPLE_RANDOM, "write sigio", NULL); - if(err){ - printk("write_sigio_irq : um_request_irq failed, err = %d\n", - err); + if (err) { + printk(KERN_ERR "write_sigio_irq : um_request_irq failed, " + "err = %d\n", err); return -1; } sigio_irq_fd = fd; diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c index 19cb97733937..b0fce720c4d0 100644 --- a/arch/um/kernel/signal.c +++ b/arch/um/kernel/signal.c @@ -3,12 +3,12 @@ * Licensed under the GPL */ -#include "linux/module.h" -#include "linux/ptrace.h" -#include "linux/sched.h" -#include "asm/siginfo.h" -#include "asm/signal.h" -#include "asm/unistd.h" +#include <linux/module.h> +#include <linux/ptrace.h> +#include <linux/sched.h> +#include <asm/siginfo.h> +#include <asm/signal.h> +#include <asm/unistd.h> #include "frame_kern.h" #include "kern_util.h" #include "sigcontext.h" @@ -36,7 +36,7 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr, /* Did we come from a system call? */ if (PT_REGS_SYSCALL_NR(regs) >= 0) { /* If so, check system call restarting.. */ - switch(PT_REGS_SYSCALL_RET(regs)) { + switch (PT_REGS_SYSCALL_RET(regs)) { case -ERESTART_RESTARTBLOCK: case -ERESTARTNOHAND: PT_REGS_SYSCALL_RET(regs) = -EINTR; @@ -116,7 +116,7 @@ static int kern_do_signal(struct pt_regs *regs) /* Did we come from a system call? */ if (!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)) { /* Restart the system call - no handlers present */ - switch(PT_REGS_SYSCALL_RET(regs)) { + switch (PT_REGS_SYSCALL_RET(regs)) { case -ERESTARTNOHAND: case -ERESTARTSYS: case -ERESTARTNOINTR: diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c index 8d07a7acb909..2c8583c1a344 100644 --- a/arch/um/kernel/skas/clone.c +++ b/arch/um/kernel/skas/clone.c @@ -1,17 +1,20 @@ -#include <sched.h> +/* + * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + * Licensed under the GPL + */ + #include <signal.h> -#include <sys/mman.h> -#include <sys/time.h> +#include <sched.h> #include <asm/unistd.h> +#include <sys/time.h> #include "as-layout.h" +#include "kern_constants.h" #include "ptrace_user.h" -#include "skas.h" #include "stub-data.h" -#include "uml-config.h" #include "sysdep/stub.h" -#include "kern_constants.h" -/* This is in a separate file because it needs to be compiled with any +/* + * This is in a separate file because it needs to be compiled with any * extraneous gcc flags (-pg, -fprofile-arcs, -ftest-coverage) disabled * * Use UM_KERN_PAGE_SIZE instead of PAGE_SIZE because that calls getpagesize @@ -26,25 +29,26 @@ stub_clone_handler(void) err = stub_syscall2(__NR_clone, CLONE_PARENT | CLONE_FILES | SIGCHLD, STUB_DATA + UM_KERN_PAGE_SIZE / 2 - sizeof(void *)); - if(err != 0) + if (err != 0) goto out; err = stub_syscall4(__NR_ptrace, PTRACE_TRACEME, 0, 0, 0); - if(err) + if (err) goto out; - err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL, + err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL, (long) &data->timer, 0); - if(err) + if (err) goto out; remap_stack(data->fd, data->offset); goto done; out: - /* save current result. - * Parent: pid; - * child: retcode of mmap already saved and it jumps around this + /* + * save current result. + * Parent: pid; + * child: retcode of mmap already saved and it jumps around this * assignment */ data->err = err; diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index f859ec306cd5..78b3e9f69d57 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -34,33 +34,14 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc, if (!pte) goto out_pte; - /* - * There's an interaction between the skas0 stub pages, stack - * randomization, and the BUG at the end of exit_mmap. exit_mmap - * checks that the number of page tables freed is the same as had - * been allocated. If the stack is on the last page table page, - * then the stack pte page will be freed, and if not, it won't. To - * avoid having to know where the stack is, or if the process mapped - * something at the top of its address space for some other reason, - * we set TASK_SIZE to end at the start of the last page table. - * This keeps exit_mmap off the last page, but introduces a leak - * of that page. So, we hang onto it here and free it in - * destroy_context_skas. - */ - - mm->context.last_page_table = pmd_page_vaddr(*pmd); -#ifdef CONFIG_3_LEVEL_PGTABLES - mm->context.last_pmd = (unsigned long) __va(pud_val(*pud)); -#endif - *pte = mk_pte(virt_to_page(kernel), __pgprot(_PAGE_PRESENT)); *pte = pte_mkread(*pte); return 0; out_pmd: - pud_free(pud); + pud_free(mm, pud); out_pte: - pmd_free(pmd); + pmd_free(mm, pmd); out: return -ENOMEM; } @@ -76,24 +57,6 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm) stack = get_zeroed_page(GFP_KERNEL); if (stack == 0) goto out; - - /* - * This zeros the entry that pgd_alloc didn't, needed since - * we are about to reinitialize it, and want mm.nr_ptes to - * be accurate. - */ - mm->pgd[USER_PTRS_PER_PGD] = __pgd(0); - - ret = init_stub_pte(mm, STUB_CODE, - (unsigned long) &__syscall_stub_start); - if (ret) - goto out_free; - - ret = init_stub_pte(mm, STUB_DATA, stack); - if (ret) - goto out_free; - - mm->nr_ptes--; } to_mm->id.stack = stack; @@ -114,6 +77,11 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm) to_mm->id.u.pid = copy_context_skas0(stack, from_mm->id.u.pid); else to_mm->id.u.pid = start_userspace(stack); + + if (to_mm->id.u.pid < 0) { + ret = to_mm->id.u.pid; + goto out_free; + } } ret = init_new_ldt(to_mm, from_mm); @@ -132,24 +100,87 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm) return ret; } +void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) +{ + struct page **pages; + int err, ret; + + if (!skas_needs_stub) + return; + + ret = init_stub_pte(mm, STUB_CODE, + (unsigned long) &__syscall_stub_start); + if (ret) + goto out; + + ret = init_stub_pte(mm, STUB_DATA, mm->context.id.stack); + if (ret) + goto out; + + pages = kmalloc(2 * sizeof(struct page *), GFP_KERNEL); + if (pages == NULL) { + printk(KERN_ERR "arch_dup_mmap failed to allocate 2 page " + "pointers\n"); + goto out; + } + + pages[0] = virt_to_page(&__syscall_stub_start); + pages[1] = virt_to_page(mm->context.id.stack); + + /* dup_mmap already holds mmap_sem */ + err = install_special_mapping(mm, STUB_START, STUB_END - STUB_START, + VM_READ | VM_MAYREAD | VM_EXEC | + VM_MAYEXEC | VM_DONTCOPY, pages); + if (err) { + printk(KERN_ERR "install_special_mapping returned %d\n", err); + goto out_free; + } + return; + +out_free: + kfree(pages); +out: + force_sigsegv(SIGSEGV, current); +} + +void arch_exit_mmap(struct mm_struct *mm) +{ + pte_t *pte; + + pte = virt_to_pte(mm, STUB_CODE); + if (pte != NULL) + pte_clear(mm, STUB_CODE, pte); + + pte = virt_to_pte(mm, STUB_DATA); + if (pte == NULL) + return; + + pte_clear(mm, STUB_DATA, pte); +} + void destroy_context(struct mm_struct *mm) { struct mm_context *mmu = &mm->context; if (proc_mm) os_close_file(mmu->id.u.mm_fd); - else + else { + /* + * If init_new_context wasn't called, this will be + * zero, resulting in a kill(0), which will result in the + * whole UML suddenly dying. Also, cover negative and + * 1 cases, since they shouldn't happen either. + */ + if (mmu->id.u.pid < 2) { + printk(KERN_ERR "corrupt mm_context - pid = %d\n", + mmu->id.u.pid); + return; + } os_kill_ptraced_process(mmu->id.u.pid, 1); + } - if (!proc_mm || !ptrace_faultinfo) { + if (skas_needs_stub) free_page(mmu->id.stack); - pte_lock_deinit(virt_to_page(mmu->last_page_table)); - pte_free_kernel((pte_t *) mmu->last_page_table); - dec_zone_page_state(virt_to_page(mmu->last_page_table), NR_PAGETABLE); -#ifdef CONFIG_3_LEVEL_PGTABLES - pmd_free((pmd_t *) mmu->last_pmd); -#endif - } free_ldt(mmu); } diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index fce389c2342f..2e9852c0d487 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -6,19 +6,25 @@ #include "linux/init.h" #include "linux/sched.h" #include "as-layout.h" +#include "kern.h" #include "os.h" #include "skas.h" int new_mm(unsigned long stack) { - int fd; + int fd, err; fd = os_open_file("/proc/mm", of_cloexec(of_write(OPENFLAGS())), 0); if (fd < 0) return fd; - if (skas_needs_stub) - map_stub_pages(fd, STUB_CODE, STUB_DATA, stack); + if (skas_needs_stub) { + err = map_stub_pages(fd, STUB_CODE, STUB_DATA, stack); + if (err) { + os_close_file(fd); + return err; + } + } return fd; } @@ -49,8 +55,14 @@ int __init start_uml(void) { stack_protections((unsigned long) &cpu0_irqstack); set_sigstack(cpu0_irqstack, THREAD_SIZE); - if (proc_mm) + if (proc_mm) { userspace_pid[0] = start_userspace(0); + if (userspace_pid[0] < 0) { + printf("start_uml - start_userspace returned %d\n", + userspace_pid[0]); + exit(1); + } + } init_new_thread_signals(); diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c index 50b476f2b38d..4e3b820bd2be 100644 --- a/arch/um/kernel/skas/syscall.c +++ b/arch/um/kernel/skas/syscall.c @@ -9,6 +9,9 @@ #include "sysdep/ptrace.h" #include "sysdep/syscalls.h" +extern int syscall_table_size; +#define NR_syscalls (syscall_table_size / sizeof(void *)) + void handle_syscall(struct uml_pt_regs *r) { struct pt_regs *regs = container_of(r, struct pt_regs, regs); @@ -17,9 +20,6 @@ void handle_syscall(struct uml_pt_regs *r) syscall_trace(r, 0); - current->thread.nsyscalls++; - nsyscalls++; - /* * This should go in the declaration of syscall, but when I do that, * strace -f -c bash -c 'ls ; ls' breaks, sometimes not tracing diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c index 1d8b119f2d0e..e22c96993db3 100644 --- a/arch/um/kernel/skas/uaccess.c +++ b/arch/um/kernel/skas/uaccess.c @@ -3,128 +3,130 @@ * Licensed under the GPL */ -#include "linux/err.h" -#include "linux/highmem.h" -#include "linux/mm.h" -#include "asm/current.h" -#include "asm/page.h" -#include "asm/pgtable.h" +#include <linux/err.h> +#include <linux/highmem.h> +#include <linux/mm.h> +#include <linux/sched.h> +#include <asm/current.h> +#include <asm/page.h> +#include <asm/pgtable.h> #include "kern_util.h" #include "os.h" -extern void *um_virt_to_phys(struct task_struct *task, unsigned long addr, - pte_t *pte_out); - -static unsigned long maybe_map(unsigned long virt, int is_write) +pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr) { - pte_t pte; - int err; + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + + if (mm == NULL) + return NULL; + + pgd = pgd_offset(mm, addr); + if (!pgd_present(*pgd)) + return NULL; + + pud = pud_offset(pgd, addr); + if (!pud_present(*pud)) + return NULL; - void *phys = um_virt_to_phys(current, virt, &pte); - int dummy_code; + pmd = pmd_offset(pud, addr); + if (!pmd_present(*pmd)) + return NULL; + + return pte_offset_kernel(pmd, addr); +} + +static pte_t *maybe_map(unsigned long virt, int is_write) +{ + pte_t *pte = virt_to_pte(current->mm, virt); + int err, dummy_code; - if (IS_ERR(phys) || (is_write && !pte_write(pte))) { + if ((pte == NULL) || !pte_present(*pte) || + (is_write && !pte_write(*pte))) { err = handle_page_fault(virt, 0, is_write, 1, &dummy_code); if (err) - return -1UL; - phys = um_virt_to_phys(current, virt, NULL); + return NULL; + pte = virt_to_pte(current->mm, virt); } - if (IS_ERR(phys)) - phys = (void *) -1; + if (!pte_present(*pte)) + pte = NULL; - return (unsigned long) phys; + return pte; } static int do_op_one_page(unsigned long addr, int len, int is_write, int (*op)(unsigned long addr, int len, void *arg), void *arg) { + jmp_buf buf; struct page *page; - int n; + pte_t *pte; + int n, faulted; - addr = maybe_map(addr, is_write); - if (addr == -1UL) + pte = maybe_map(addr, is_write); + if (pte == NULL) return -1; - page = phys_to_page(addr); + page = pte_page(*pte); addr = (unsigned long) kmap_atomic(page, KM_UML_USERCOPY) + (addr & ~PAGE_MASK); - n = (*op)(addr, len, arg); + current->thread.fault_catcher = &buf; + + faulted = UML_SETJMP(&buf); + if (faulted == 0) + n = (*op)(addr, len, arg); + else + n = -1; + + current->thread.fault_catcher = NULL; kunmap_atomic(page, KM_UML_USERCOPY); return n; } -static void do_buffer_op(void *jmpbuf, void *arg_ptr) +static int buffer_op(unsigned long addr, int len, int is_write, + int (*op)(unsigned long, int, void *), void *arg) { - va_list args; - unsigned long addr; - int len, is_write, size, remain, n; - int (*op)(unsigned long, int, void *); - void *arg; - int *res; - - va_copy(args, *(va_list *)arg_ptr); - addr = va_arg(args, unsigned long); - len = va_arg(args, int); - is_write = va_arg(args, int); - op = va_arg(args, void *); - arg = va_arg(args, void *); - res = va_arg(args, int *); - va_end(args); + int size, remain, n; + size = min(PAGE_ALIGN(addr) - addr, (unsigned long) len); remain = len; - current->thread.fault_catcher = jmpbuf; n = do_op_one_page(addr, size, is_write, op, arg); if (n != 0) { - *res = (n < 0 ? remain : 0); + remain = (n < 0 ? remain : 0); goto out; } addr += size; remain -= size; - if (remain == 0) { - *res = 0; + if (remain == 0) goto out; - } - while(addr < ((addr + remain) & PAGE_MASK)) { + while (addr < ((addr + remain) & PAGE_MASK)) { n = do_op_one_page(addr, PAGE_SIZE, is_write, op, arg); if (n != 0) { - *res = (n < 0 ? remain : 0); + remain = (n < 0 ? remain : 0); goto out; } addr += PAGE_SIZE; remain -= PAGE_SIZE; } - if (remain == 0) { - *res = 0; + if (remain == 0) goto out; - } n = do_op_one_page(addr, remain, is_write, op, arg); - if (n != 0) - *res = (n < 0 ? remain : 0); - else *res = 0; - out: - current->thread.fault_catcher = NULL; -} - -static int buffer_op(unsigned long addr, int len, int is_write, - int (*op)(unsigned long addr, int len, void *arg), - void *arg) -{ - int faulted, res; - - faulted = setjmp_wrapper(do_buffer_op, addr, len, is_write, op, arg, - &res); - if (!faulted) - return res; + if (n != 0) { + remain = (n < 0 ? remain : 0); + goto out; + } - return addr + len - (unsigned long) current->thread.fault_addr; + return 0; + out: + return remain; } static int copy_chunk_from_user(unsigned long from, int len, void *arg) diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 36d89cf8d20b..e1062ec36d40 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -21,7 +21,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); #include "asm/smp.h" #include "asm/processor.h" #include "asm/spinlock.h" -#include "kern_util.h" #include "kern.h" #include "irq_user.h" #include "os.h" @@ -61,7 +60,7 @@ void smp_send_stop(void) continue; os_write_file(cpu_data[i].ipi_pipe[1], "S", 1); } - printk(KERN_INFO "done\n"); + printk(KERN_CONT "done\n"); } static cpumask_t smp_commenced_mask = CPU_MASK_NONE; @@ -75,8 +74,7 @@ static int idle_proc(void *cpup) if (err < 0) panic("CPU#%d failed to create IPI pipe, err = %d", cpu, -err); - os_set_fd_async(cpu_data[cpu].ipi_pipe[0], - current->thread.mode.tt.extern_pid); + os_set_fd_async(cpu_data[cpu].ipi_pipe[0]); wmb(); if (cpu_test_and_set(cpu, cpu_callin_map)) { @@ -129,8 +127,7 @@ void smp_prepare_cpus(unsigned int maxcpus) if (err < 0) panic("CPU#0 failed to create IPI pipe, errno = %d", -err); - os_set_fd_async(cpu_data[me].ipi_pipe[0], - current->thread.mode.tt.extern_pid); + os_set_fd_async(cpu_data[me].ipi_pipe[0]); for (cpu = 1; cpu < ncpus; cpu++) { printk(KERN_INFO "Booting processor %d...\n", cpu); @@ -143,9 +140,8 @@ void smp_prepare_cpus(unsigned int maxcpus) while (waittime-- && !cpu_isset(cpu, cpu_callin_map)) cpu_relax(); - if (cpu_isset(cpu, cpu_callin_map)) - printk(KERN_INFO "done\n"); - else printk(KERN_INFO "failed\n"); + printk(KERN_INFO "%s\n", + cpu_isset(cpu, cpu_calling_map) ? "done" : "failed"); } } diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c index b9d92b2089ae..9cffc628a37e 100644 --- a/arch/um/kernel/syscall.c +++ b/arch/um/kernel/syscall.c @@ -13,9 +13,6 @@ #include "asm/uaccess.h" #include "asm/unistd.h" -/* Unlocked, I don't care if this is a bit off */ -int nsyscalls = 0; - long sys_fork(void) { long ret; diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index 93263571d813..56d43d0a3960 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -1,38 +1,37 @@ -/* - * Copyright (C) 2001 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include "linux/sched.h" -#include "linux/kernel.h" -#include "linux/module.h" -#include "linux/kallsyms.h" -#include "asm/page.h" -#include "asm/processor.h" +#include <linux/kallsyms.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> #include "sysrq.h" /* Catch non-i386 SUBARCH's. */ #if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) void show_trace(struct task_struct *task, unsigned long * stack) { - unsigned long addr; + unsigned long addr; - if (!stack) { + if (!stack) { stack = (unsigned long*) &stack; WARN_ON(1); } - printk("Call Trace: \n"); - while (((long) stack & (THREAD_SIZE-1)) != 0) { - addr = *stack; + printk(KERN_INFO "Call Trace: \n"); + while (((long) stack & (THREAD_SIZE-1)) != 0) { + addr = *stack; if (__kernel_text_address(addr)) { - printk("%08lx: [<%08lx>]", (unsigned long) stack, addr); - print_symbol(" %s", addr); - printk("\n"); - } - stack++; - } - printk("\n"); + printk(KERN_INFO "%08lx: [<%08lx>]", + (unsigned long) stack, addr); + print_symbol(KERN_CONT " %s", addr); + printk(KERN_CONT "\n"); + } + stack++; + } + printk(KERN_INFO "\n"); } #endif @@ -67,14 +66,13 @@ void show_stack(struct task_struct *task, unsigned long *esp) } stack = esp; - for(i = 0; i < kstack_depth_to_print; i++) { + for (i = 0; i < kstack_depth_to_print; i++) { if (kstack_end(stack)) break; if (i && ((i % 8) == 0)) - printk("\n "); + printk("\n" KERN_INFO " "); printk("%08lx ", *stack++); } - printk("Call Trace: \n"); show_trace(task, esp); } diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index 1ac746a9eae1..e066e84493b1 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -3,12 +3,12 @@ * Licensed under the GPL */ -#include "linux/clockchips.h" -#include "linux/interrupt.h" -#include "linux/jiffies.h" -#include "linux/threads.h" -#include "asm/irq.h" -#include "asm/param.h" +#include <linux/clockchips.h> +#include <linux/interrupt.h> +#include <linux/jiffies.h> +#include <linux/threads.h> +#include <asm/irq.h> +#include <asm/param.h> #include "kern_util.h" #include "os.h" @@ -32,7 +32,7 @@ void timer_handler(int sig, struct uml_pt_regs *regs) static void itimer_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) { - switch(mode) { + switch (mode) { case CLOCK_EVT_MODE_PERIODIC: set_interval(); break; diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index f4a0e407eee4..d175d0566af0 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -3,9 +3,10 @@ * Licensed under the GPL */ -#include "linux/mm.h" -#include "asm/pgtable.h" -#include "asm/tlbflush.h" +#include <linux/mm.h> +#include <linux/sched.h> +#include <asm/pgtable.h> +#include <asm/tlbflush.h> #include "as-layout.h" #include "mem_user.h" #include "os.h" @@ -56,7 +57,7 @@ static int do_ops(struct host_vm_change *hvc, int end, for (i = 0; i < end && !ret; i++) { op = &hvc->ops[i]; - switch(op->type) { + switch (op->type) { case MMAP: ret = map(hvc->id, op->u.mmap.addr, op->u.mmap.len, op->u.mmap.prot, op->u.mmap.fd, @@ -183,27 +184,30 @@ static inline int update_pte_range(pmd_t *pmd, unsigned long addr, pte = pte_offset_kernel(pmd, addr); do { + if ((addr >= STUB_START) && (addr < STUB_END)) + continue; + r = pte_read(*pte); w = pte_write(*pte); x = pte_exec(*pte); if (!pte_young(*pte)) { r = 0; w = 0; - } else if (!pte_dirty(*pte)) { + } else if (!pte_dirty(*pte)) w = 0; - } + prot = ((r ? UM_PROT_READ : 0) | (w ? UM_PROT_WRITE : 0) | (x ? UM_PROT_EXEC : 0)); if (hvc->force || pte_newpage(*pte)) { if (pte_present(*pte)) ret = add_mmap(addr, pte_val(*pte) & PAGE_MASK, PAGE_SIZE, prot, hvc); - else ret = add_munmap(addr, PAGE_SIZE, hvc); - } - else if (pte_newprot(*pte)) + else + ret = add_munmap(addr, PAGE_SIZE, hvc); + } else if (pte_newprot(*pte)) ret = add_mprotect(addr, PAGE_SIZE, prot, hvc); *pte = pte_mkuptodate(*pte); - } while (pte++, addr += PAGE_SIZE, ((addr != end) && !ret)); + } while (pte++, addr += PAGE_SIZE, ((addr < end) && !ret)); return ret; } @@ -225,7 +229,7 @@ static inline int update_pmd_range(pud_t *pud, unsigned long addr, } } else ret = update_pte_range(pmd, addr, next, hvc); - } while (pmd++, addr = next, ((addr != end) && !ret)); + } while (pmd++, addr = next, ((addr < end) && !ret)); return ret; } @@ -247,7 +251,7 @@ static inline int update_pud_range(pgd_t *pgd, unsigned long addr, } } else ret = update_pmd_range(pud, addr, next, hvc); - } while (pud++, addr = next, ((addr != end) && !ret)); + } while (pud++, addr = next, ((addr < end) && !ret)); return ret; } @@ -270,7 +274,7 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr, } } else ret = update_pud_range(pgd, addr, next, &hvc); - } while (pgd++, addr = next, ((addr != end_addr) && !ret)); + } while (pgd++, addr = next, ((addr < end_addr) && !ret)); if (!ret) ret = do_ops(&hvc, hvc.index, 1); @@ -485,9 +489,6 @@ void __flush_tlb_one(unsigned long addr) static void fix_range(struct mm_struct *mm, unsigned long start_addr, unsigned long end_addr, int force) { - if (!proc_mm && (end_addr > STUB_START)) - end_addr = STUB_START; - fix_range_common(mm, start_addr, end_addr, force); } @@ -499,10 +500,9 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, else fix_range(vma->vm_mm, start, end, 0); } -void flush_tlb_mm(struct mm_struct *mm) +void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, + unsigned long end) { - unsigned long end; - /* * Don't bother flushing if this address space is about to be * destroyed. @@ -510,8 +510,17 @@ void flush_tlb_mm(struct mm_struct *mm) if (atomic_read(&mm->mm_users) == 0) return; - end = proc_mm ? task_size : STUB_START; - fix_range(mm, 0, end, 0); + fix_range(mm, start, end, 0); +} + +void flush_tlb_mm(struct mm_struct *mm) +{ + struct vm_area_struct *vma = mm->mmap; + + while (vma != NULL) { + fix_range(mm, vma->vm_start, vma->vm_end, 0); + vma = vma->vm_next; + } } void force_flush_all(void) diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index cb3321f8e0a9..44e490419495 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -13,6 +13,7 @@ #include "as-layout.h" #include "kern_util.h" #include "os.h" +#include "skas.h" #include "sysdep/sigcontext.h" /* @@ -128,7 +129,19 @@ static void bad_segv(struct faultinfo fi, unsigned long ip) force_sig_info(SIGSEGV, &si, current); } -static void segv_handler(int sig, struct uml_pt_regs *regs) +void fatal_sigsegv(void) +{ + force_sigsegv(SIGSEGV, current); + do_signal(); + /* + * This is to tell gcc that we're not returning - do_signal + * can, in general, return, but in this case, it's not, since + * we just got a fatal SIGSEGV queued. + */ + os_dump_core(); +} + +void segv_handler(int sig, struct uml_pt_regs *regs) { struct faultinfo * fi = UPT_FAULTINFO(regs); @@ -216,9 +229,6 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void relay_signal(int sig, struct uml_pt_regs *regs) { - if (arch_handle_signal(sig, regs)) - return; - if (!UPT_IS_USER(regs)) { if (sig == SIGBUS) printk(KERN_ERR "Bus error - the host /dev/shm or /tmp " @@ -226,31 +236,24 @@ void relay_signal(int sig, struct uml_pt_regs *regs) panic("Kernel mode signal %d", sig); } + arch_examine_signal(sig, regs); + current->thread.arch.faultinfo = *UPT_FAULTINFO(regs); force_sig(sig, current); } -static void bus_handler(int sig, struct uml_pt_regs *regs) +void bus_handler(int sig, struct uml_pt_regs *regs) { if (current->thread.fault_catcher != NULL) UML_LONGJMP(current->thread.fault_catcher, 1); else relay_signal(sig, regs); } -static void winch(int sig, struct uml_pt_regs *regs) +void winch(int sig, struct uml_pt_regs *regs) { do_IRQ(WINCH_IRQ, regs); } -const struct kern_handlers handlinfo_kern = { - .relay_signal = relay_signal, - .winch = winch, - .bus_handler = bus_handler, - .page_fault = segv_handler, - .sigio_handler = sigio_handler, - .timer_handler = timer_handler -}; - void trap_init(void) { } diff --git a/arch/um/kernel/uaccess.c b/arch/um/kernel/uaccess.c index d7436aacd26f..f0f4b040d7c5 100644 --- a/arch/um/kernel/uaccess.c +++ b/arch/um/kernel/uaccess.c @@ -1,10 +1,11 @@ /* * Copyright (C) 2001 Chris Emerson (cemerson@chiark.greenend.org.uk) - * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -/* These are here rather than tt/uaccess.c because skas mode needs them in +/* + * These are here rather than tt/uaccess.c because skas mode needs them in * order to do SIGBUS recovery when a tmpfs mount runs out of room. */ @@ -25,6 +26,8 @@ int __do_copy_to_user(void *to, const void *from, int n, fault = __do_user_copy(to, from, n, fault_addr, fault_catcher, __do_copy, &faulted); - if(!faulted) return(0); - else return(n - (fault - (unsigned long) to)); + if (!faulted) + return 0; + else + return n - (fault - (unsigned long) to); } diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index f1c71393f578..468aba990dbd 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -3,22 +3,23 @@ * Licensed under the GPL */ -#include "linux/delay.h" -#include "linux/mm.h" -#include "linux/module.h" -#include "linux/seq_file.h" -#include "linux/string.h" -#include "linux/utsname.h" -#include "asm/pgtable.h" -#include "asm/processor.h" -#include "asm/setup.h" -#include "arch.h" +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/seq_file.h> +#include <linux/string.h> +#include <linux/utsname.h> +#include <asm/pgtable.h> +#include <asm/processor.h> +#include <asm/setup.h> #include "as-layout.h" +#include "arch.h" #include "init.h" #include "kern.h" +#include "kern_util.h" #include "mem_user.h" #include "os.h" -#include "skas.h" #define DEFAULT_COMMAND_LINE "root=98:0" @@ -100,8 +101,6 @@ const struct seq_operations cpuinfo_op = { }; /* Set in linux_main */ -unsigned long host_task_size; -unsigned long task_size; unsigned long uml_physmem; unsigned long uml_reserved; /* Also modified in mem_init */ unsigned long start_vm; @@ -197,20 +196,19 @@ __uml_setup("--help", Usage, " Prints this message.\n\n" ); -static int __init uml_checksetup(char *line, int *add) +static void __init uml_checksetup(char *line, int *add) { struct uml_param *p; p = &__uml_setup_start; - while(p < &__uml_setup_end) { + while (p < &__uml_setup_end) { int n; n = strlen(p->str); if (!strncmp(line, p->str, n) && p->setup_func(line + n, add)) - return 1; + return; p++; } - return 0; } static void __init uml_postsetup(void) @@ -218,13 +216,30 @@ static void __init uml_postsetup(void) initcall_t *p; p = &__uml_postsetup_start; - while(p < &__uml_postsetup_end) { + while (p < &__uml_postsetup_end) { (*p)(); p++; } return; } +static int panic_exit(struct notifier_block *self, unsigned long unused1, + void *unused2) +{ + bust_spinlocks(1); + show_regs(&(current->thread.regs)); + bust_spinlocks(0); + uml_exitcode = 1; + os_dump_core(); + return 0; +} + +static struct notifier_block panic_exit_notifier = { + .notifier_call = panic_exit, + .next = NULL, + .priority = 0 +}; + /* Set during early boot */ unsigned long brk_start; unsigned long end_iomem; @@ -234,20 +249,6 @@ EXPORT_SYMBOL(end_iomem); extern char __binary_start; -static unsigned long set_task_sizes_skas(unsigned long *task_size_out) -{ - /* Round up to the nearest 4M */ - unsigned long host_task_size = ROUND_4M((unsigned long) - &host_task_size); - - if (!skas_needs_stub) - *task_size_out = host_task_size; - else - *task_size_out = STUB_START & PGDIR_MASK; - - return host_task_size; -} - int __init linux_main(int argc, char **argv) { unsigned long avail, diff; @@ -278,13 +279,6 @@ int __init linux_main(int argc, char **argv) printf("UML running in %s mode\n", mode); - host_task_size = set_task_sizes_skas(&task_size); - - /* - * Setting up handlers to 'sig_info' struct - */ - os_fill_handlinfo(handlinfo_kern); - brk_start = (unsigned long) sbrk(0); /* @@ -309,7 +303,7 @@ int __init linux_main(int argc, char **argv) highmem = 0; iomem_size = (iomem_size + PAGE_SIZE - 1) & PAGE_MASK; - max_physmem = get_kmem_end() - uml_physmem - iomem_size - MIN_VMALLOC; + max_physmem = CONFIG_TOP_ADDR - uml_physmem - iomem_size - MIN_VMALLOC; /* * Zones have to begin on a 1 << MAX_ORDER page boundary, @@ -341,7 +335,7 @@ int __init linux_main(int argc, char **argv) } virtmem_size = physmem_size; - avail = get_kmem_end() - start_vm; + avail = CONFIG_TOP_ADDR - start_vm; if (physmem_size > avail) virtmem_size = avail; end_vm = start_vm + virtmem_size; @@ -350,6 +344,9 @@ int __init linux_main(int argc, char **argv) printf("Kernel virtual memory size shrunk to %lu bytes\n", virtmem_size); + atomic_notifier_chain_register(&panic_notifier_list, + &panic_exit_notifier); + uml_postsetup(); stack_protections((unsigned long) &init_thread_info); @@ -358,29 +355,8 @@ int __init linux_main(int argc, char **argv) return start_uml(); } -extern int uml_exitcode; - -static int panic_exit(struct notifier_block *self, unsigned long unused1, - void *unused2) -{ - bust_spinlocks(1); - show_regs(&(current->thread.regs)); - bust_spinlocks(0); - uml_exitcode = 1; - os_dump_core(); - return 0; -} - -static struct notifier_block panic_exit_notifier = { - .notifier_call = panic_exit, - .next = NULL, - .priority = 0 -}; - void __init setup_arch(char **cmdline_p) { - atomic_notifier_chain_register(&panic_notifier_list, - &panic_exit_notifier); paging_init(); strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; diff --git a/arch/um/kernel/umid.c b/arch/um/kernel/umid.c index 039e16efcd55..81e07e2be3ae 100644 --- a/arch/um/kernel/umid.c +++ b/arch/um/kernel/umid.c @@ -1,13 +1,12 @@ -/* - * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include "asm/errno.h" +#include <asm/errno.h> #include "init.h" -#include "os.h" #include "kern.h" -#include "linux/kernel.h" +#include "os.h" /* Changed by set_umid_arg */ static int umid_inited = 0; @@ -16,16 +15,16 @@ static int __init set_umid_arg(char *name, int *add) { int err; - if(umid_inited){ + if (umid_inited) { printf("umid already set\n"); return 0; } *add = 0; err = set_umid(name); - if(err == -EEXIST) + if (err == -EEXIST) printf("umid '%s' already in use\n", name); - else if(!err) + else if (!err) umid_inited = 1; return 0; diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile index 8e129af8170d..8a48d6a30064 100644 --- a/arch/um/os-Linux/Makefile +++ b/arch/um/os-Linux/Makefile @@ -4,7 +4,7 @@ # obj-y = aio.o elf_aux.o execvp.o file.o helper.o irq.o main.o mem.o process.o \ - registers.o sigio.o signal.o start_up.o time.o trap.o tty.o uaccess.o \ + registers.o sigio.o signal.o start_up.o time.o tty.o uaccess.o \ umid.o tls.o user_syms.o util.o drivers/ sys-$(SUBARCH)/ skas/ obj-$(CONFIG_TTY_LOG) += tty_log.o @@ -12,7 +12,7 @@ user-objs-$(CONFIG_TTY_LOG) += tty_log.o USER_OBJS := $(user-objs-y) aio.o elf_aux.o execvp.o file.o helper.o irq.o \ main.o mem.o process.o registers.o sigio.o signal.o start_up.o time.o \ - trap.o tty.o tls.o uaccess.o umid.o util.o + tty.o tls.o uaccess.o umid.o util.o CFLAGS_user_syms.o += -DSUBARCH_$(SUBARCH) diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c index 93dc0c80ebaf..b8d8c9ca8d4a 100644 --- a/arch/um/os-Linux/aio.c +++ b/arch/um/os-Linux/aio.c @@ -12,6 +12,7 @@ #include "aio.h" #include "init.h" #include "kern_constants.h" +#include "kern_util.h" #include "os.h" #include "user.h" diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c index 07ca0cb472ac..6fb0b174f538 100644 --- a/arch/um/os-Linux/drivers/ethertap_user.c +++ b/arch/um/os-Linux/drivers/ethertap_user.c @@ -131,7 +131,7 @@ static int etap_tramp(char *dev, char *gate, int control_me, } if (c != 1) { printk(UM_KERN_ERR "etap_tramp : uml_net failed\n"); - err = helper_wait(pid, 0, "uml_net"); + err = helper_wait(pid); } return err; } diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index 1037a3b6386e..2448be03fd7a 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -14,6 +14,7 @@ #include <sys/wait.h> #include <sys/uio.h> #include "kern_constants.h" +#include "kern_util.h" #include "os.h" #include "tuntap.h" #include "user.h" @@ -107,7 +108,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, "errno = %d\n", errno); return err; } - helper_wait(pid, 0, "tuntap_open_tramp"); + helper_wait(pid); cmsg = CMSG_FIRSTHDR(&msg); if (cmsg == NULL) { @@ -148,7 +149,7 @@ static int tuntap_open(void *data) memset(&ifr, 0, sizeof(ifr)); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name)); - if (ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0) { + if (ioctl(pri->fd, TUNSETIFF, &ifr) < 0) { err = -errno; printk(UM_KERN_ERR "TUNSETIFF failed, errno = %d\n", errno); diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index f83462758627..b5afcfd0f861 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -8,18 +8,16 @@ #include <errno.h> #include <fcntl.h> #include <signal.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <sys/un.h> #include <sys/ioctl.h> #include <sys/mount.h> -#include <sys/uio.h> +#include <sys/socket.h> +#include <sys/stat.h> +#include <sys/un.h> +#include "kern_constants.h" #include "os.h" #include "user.h" -#include "kern_util.h" -static void copy_stat(struct uml_stat *dst, struct stat64 *src) +static void copy_stat(struct uml_stat *dst, const struct stat64 *src) { *dst = ((struct uml_stat) { .ust_dev = src->st_dev, /* device */ @@ -43,10 +41,10 @@ int os_stat_fd(const int fd, struct uml_stat *ubuf) int err; CATCH_EINTR(err = fstat64(fd, &sbuf)); - if(err < 0) + if (err < 0) return -errno; - if(ubuf != NULL) + if (ubuf != NULL) copy_stat(ubuf, &sbuf); return err; } @@ -56,27 +54,26 @@ int os_stat_file(const char *file_name, struct uml_stat *ubuf) struct stat64 sbuf; int err; - do { - err = stat64(file_name, &sbuf); - } while((err < 0) && (errno == EINTR)) ; - - if(err < 0) + CATCH_EINTR(err = stat64(file_name, &sbuf)); + if (err < 0) return -errno; - if(ubuf != NULL) + if (ubuf != NULL) copy_stat(ubuf, &sbuf); return err; } -int os_access(const char* file, int mode) +int os_access(const char *file, int mode) { int amode, err; - amode=(mode&OS_ACC_R_OK ? R_OK : 0) | (mode&OS_ACC_W_OK ? W_OK : 0) | - (mode&OS_ACC_X_OK ? X_OK : 0) | (mode&OS_ACC_F_OK ? F_OK : 0) ; + amode = (mode & OS_ACC_R_OK ? R_OK : 0) | + (mode & OS_ACC_W_OK ? W_OK : 0) | + (mode & OS_ACC_X_OK ? X_OK : 0) | + (mode & OS_ACC_F_OK ? F_OK : 0); err = access(file, amode); - if(err < 0) + if (err < 0) return -errno; return 0; @@ -88,7 +85,7 @@ int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg) int err; err = ioctl(fd, cmd, arg); - if(err < 0) + if (err < 0) return -errno; return err; @@ -97,7 +94,7 @@ int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg) /* FIXME: ensure namebuf in os_get_if_name is big enough */ int os_get_ifname(int fd, char* namebuf) { - if(ioctl(fd, SIOCGIFNAME, namebuf) < 0) + if (ioctl(fd, SIOCGIFNAME, namebuf) < 0) return -errno; return 0; @@ -108,37 +105,22 @@ int os_set_slip(int fd) int disc, sencap; disc = N_SLIP; - if(ioctl(fd, TIOCSETD, &disc) < 0) + if (ioctl(fd, TIOCSETD, &disc) < 0) return -errno; sencap = 0; - if(ioctl(fd, SIOCSIFENCAP, &sencap) < 0) + if (ioctl(fd, SIOCSIFENCAP, &sencap) < 0) return -errno; return 0; } -int os_set_owner(int fd, int pid) -{ - if(fcntl(fd, F_SETOWN, pid) < 0){ - int save_errno = errno; - - if(fcntl(fd, F_GETOWN, 0) != pid) - return -save_errno; - } - - return 0; -} - int os_mode_fd(int fd, int mode) { int err; - do { - err = fchmod(fd, mode); - } while((err < 0) && (errno==EINTR)) ; - - if(err < 0) + CATCH_EINTR(err = fchmod(fd, mode)); + if (err < 0) return -errno; return 0; @@ -150,64 +132,73 @@ int os_file_type(char *file) int err; err = os_stat_file(file, &buf); - if(err < 0) + if (err < 0) return err; - if(S_ISDIR(buf.ust_mode)) + if (S_ISDIR(buf.ust_mode)) return OS_TYPE_DIR; - else if(S_ISLNK(buf.ust_mode)) + else if (S_ISLNK(buf.ust_mode)) return OS_TYPE_SYMLINK; - else if(S_ISCHR(buf.ust_mode)) + else if (S_ISCHR(buf.ust_mode)) return OS_TYPE_CHARDEV; - else if(S_ISBLK(buf.ust_mode)) + else if (S_ISBLK(buf.ust_mode)) return OS_TYPE_BLOCKDEV; - else if(S_ISFIFO(buf.ust_mode)) + else if (S_ISFIFO(buf.ust_mode)) return OS_TYPE_FIFO; - else if(S_ISSOCK(buf.ust_mode)) + else if (S_ISSOCK(buf.ust_mode)) return OS_TYPE_SOCK; else return OS_TYPE_FILE; } -int os_file_mode(char *file, struct openflags *mode_out) +int os_file_mode(const char *file, struct openflags *mode_out) { int err; *mode_out = OPENFLAGS(); err = access(file, W_OK); - if(err && (errno != EACCES)) + if (err && (errno != EACCES)) return -errno; - else if(!err) + else if (!err) *mode_out = of_write(*mode_out); err = access(file, R_OK); - if(err && (errno != EACCES)) + if (err && (errno != EACCES)) return -errno; - else if(!err) + else if (!err) *mode_out = of_read(*mode_out); return err; } -int os_open_file(char *file, struct openflags flags, int mode) +int os_open_file(const char *file, struct openflags flags, int mode) { int fd, err, f = 0; - if(flags.r && flags.w) f = O_RDWR; - else if(flags.r) f = O_RDONLY; - else if(flags.w) f = O_WRONLY; + if (flags.r && flags.w) + f = O_RDWR; + else if (flags.r) + f = O_RDONLY; + else if (flags.w) + f = O_WRONLY; else f = 0; - if(flags.s) f |= O_SYNC; - if(flags.c) f |= O_CREAT; - if(flags.t) f |= O_TRUNC; - if(flags.e) f |= O_EXCL; + if (flags.s) + f |= O_SYNC; + if (flags.c) + f |= O_CREAT; + if (flags.t) + f |= O_TRUNC; + if (flags.e) + f |= O_EXCL; + if (flags.a) + f |= O_APPEND; fd = open64(file, f, mode); - if(fd < 0) + if (fd < 0) return -errno; - if(flags.cl && fcntl(fd, F_SETFD, 1)){ + if (flags.cl && fcntl(fd, F_SETFD, 1)) { err = -errno; close(fd); return err; @@ -216,7 +207,7 @@ int os_open_file(char *file, struct openflags flags, int mode) return fd; } -int os_connect_socket(char *name) +int os_connect_socket(const char *name) { struct sockaddr_un sock; int fd, err; @@ -225,13 +216,13 @@ int os_connect_socket(char *name) snprintf(sock.sun_path, sizeof(sock.sun_path), "%s", name); fd = socket(AF_UNIX, SOCK_STREAM, 0); - if(fd < 0) { + if (fd < 0) { err = -errno; goto out; } err = connect(fd, (struct sockaddr *) &sock, sizeof(sock)); - if(err) { + if (err) { err = -errno; goto out_close; } @@ -254,7 +245,7 @@ int os_seek_file(int fd, unsigned long long offset) unsigned long long actual; actual = lseek64(fd, offset, SEEK_SET); - if(actual != offset) + if (actual != offset) return -errno; return 0; } @@ -263,7 +254,7 @@ int os_read_file(int fd, void *buf, int len) { int n = read(fd, buf, len); - if(n < 0) + if (n < 0) return -errno; return n; } @@ -272,37 +263,38 @@ int os_write_file(int fd, const void *buf, int len) { int n = write(fd, (void *) buf, len); - if(n < 0) + if (n < 0) return -errno; return n; } -int os_file_size(char *file, unsigned long long *size_out) +int os_file_size(const char *file, unsigned long long *size_out) { struct uml_stat buf; int err; err = os_stat_file(file, &buf); - if(err < 0){ - printk("Couldn't stat \"%s\" : err = %d\n", file, -err); + if (err < 0) { + printk(UM_KERN_ERR "Couldn't stat \"%s\" : err = %d\n", file, + -err); return err; } - if(S_ISBLK(buf.ust_mode)){ + if (S_ISBLK(buf.ust_mode)) { int fd; long blocks; fd = open(file, O_RDONLY, 0); - if(fd < 0) { + if (fd < 0) { err = -errno; - printk("Couldn't open \"%s\", errno = %d\n", file, - errno); + printk(UM_KERN_ERR "Couldn't open \"%s\", " + "errno = %d\n", file, errno); return err; } - if(ioctl(fd, BLKGETSIZE, &blocks) < 0){ + if (ioctl(fd, BLKGETSIZE, &blocks) < 0) { err = -errno; - printk("Couldn't get the block size of \"%s\", " - "errno = %d\n", file, errno); + printk(UM_KERN_ERR "Couldn't get the block size of " + "\"%s\", errno = %d\n", file, errno); close(fd); return err; } @@ -314,14 +306,15 @@ int os_file_size(char *file, unsigned long long *size_out) return 0; } -int os_file_modtime(char *file, unsigned long *modtime) +int os_file_modtime(const char *file, unsigned long *modtime) { struct uml_stat buf; int err; err = os_stat_file(file, &buf); - if(err < 0){ - printk("Couldn't stat \"%s\" : err = %d\n", file, -err); + if (err < 0) { + printk(UM_KERN_ERR "Couldn't stat \"%s\" : err = %d\n", file, + -err); return err; } @@ -329,26 +322,13 @@ int os_file_modtime(char *file, unsigned long *modtime) return 0; } -int os_get_exec_close(int fd, int *close_on_exec) -{ - int ret; - - CATCH_EINTR(ret = fcntl(fd, F_GETFD)); - - if(ret < 0) - return -errno; - - *close_on_exec = (ret & FD_CLOEXEC) ? 1 : 0; - return ret; -} - int os_set_exec_close(int fd) { int err; CATCH_EINTR(err = fcntl(fd, F_SETFD, FD_CLOEXEC)); - if(err < 0) + if (err < 0) return -errno; return err; } @@ -358,53 +338,51 @@ int os_pipe(int *fds, int stream, int close_on_exec) int err, type = stream ? SOCK_STREAM : SOCK_DGRAM; err = socketpair(AF_UNIX, type, 0, fds); - if(err < 0) + if (err < 0) return -errno; - if(!close_on_exec) + if (!close_on_exec) return 0; err = os_set_exec_close(fds[0]); - if(err < 0) + if (err < 0) goto error; err = os_set_exec_close(fds[1]); - if(err < 0) + if (err < 0) goto error; return 0; error: - printk("os_pipe : Setting FD_CLOEXEC failed, err = %d\n", -err); + printk(UM_KERN_ERR "os_pipe : Setting FD_CLOEXEC failed, err = %d\n", + -err); close(fds[1]); close(fds[0]); return err; } -int os_set_fd_async(int fd, int owner) +int os_set_fd_async(int fd) { - int err; + int err, flags; + + flags = fcntl(fd, F_GETFL); + if (flags < 0) + return -errno; - /* XXX This should do F_GETFL first */ - if(fcntl(fd, F_SETFL, O_ASYNC | O_NONBLOCK) < 0){ + flags |= O_ASYNC | O_NONBLOCK; + if (fcntl(fd, F_SETFL, flags) < 0) { err = -errno; - printk("os_set_fd_async : failed to set O_ASYNC and " - "O_NONBLOCK on fd # %d, errno = %d\n", fd, errno); + printk(UM_KERN_ERR "os_set_fd_async : failed to set O_ASYNC " + "and O_NONBLOCK on fd # %d, errno = %d\n", fd, errno); return err; } -#ifdef notdef - if(fcntl(fd, F_SETFD, 1) < 0){ - printk("os_set_fd_async : Setting FD_CLOEXEC failed, " - "errno = %d\n", errno); - } -#endif - if((fcntl(fd, F_SETSIG, SIGIO) < 0) || - (fcntl(fd, F_SETOWN, owner) < 0)){ + if ((fcntl(fd, F_SETSIG, SIGIO) < 0) || + (fcntl(fd, F_SETOWN, os_getpid()) < 0)) { err = -errno; - printk("os_set_fd_async : Failed to fcntl F_SETOWN " - "(or F_SETSIG) fd %d to pid %d, errno = %d\n", fd, - owner, errno); + printk(UM_KERN_ERR "os_set_fd_async : Failed to fcntl F_SETOWN " + "(or F_SETSIG) fd %d, errno = %d\n", fd, errno); return err; } @@ -413,10 +391,14 @@ int os_set_fd_async(int fd, int owner) int os_clear_fd_async(int fd) { - int flags = fcntl(fd, F_GETFL); + int flags; + + flags = fcntl(fd, F_GETFL); + if (flags < 0) + return -errno; flags &= ~(O_ASYNC | O_NONBLOCK); - if(fcntl(fd, F_SETFL, flags) < 0) + if (fcntl(fd, F_SETFL, flags) < 0) return -errno; return 0; } @@ -426,11 +408,15 @@ int os_set_fd_block(int fd, int blocking) int flags; flags = fcntl(fd, F_GETFL); + if (flags < 0) + return -errno; - if(blocking) flags &= ~O_NONBLOCK; - else flags |= O_NONBLOCK; + if (blocking) + flags &= ~O_NONBLOCK; + else + flags |= O_NONBLOCK; - if(fcntl(fd, F_SETFL, flags) < 0) + if (fcntl(fd, F_SETFL, flags) < 0) return -errno; return 0; @@ -441,7 +427,7 @@ int os_accept_connection(int fd) int new; new = accept(fd, NULL, 0); - if(new < 0) + if (new < 0) return -errno; return new; } @@ -462,15 +448,17 @@ int os_shutdown_socket(int fd, int r, int w) { int what, err; - if(r && w) what = SHUT_RDWR; - else if(r) what = SHUT_RD; - else if(w) what = SHUT_WR; - else { - printk("os_shutdown_socket : neither r or w was set\n"); + if (r && w) + what = SHUT_RDWR; + else if (r) + what = SHUT_RD; + else if (w) + what = SHUT_WR; + else return -EINVAL; - } + err = shutdown(fd, what); - if(err < 0) + if (err < 0) return -errno; return 0; } @@ -494,19 +482,20 @@ int os_rcv_fd(int fd, int *helper_pid_out) msg.msg_flags = 0; n = recvmsg(fd, &msg, 0); - if(n < 0) + if (n < 0) return -errno; - else if(n != iov.iov_len) + else if (n != iov.iov_len) *helper_pid_out = -1; cmsg = CMSG_FIRSTHDR(&msg); - if(cmsg == NULL){ - printk("rcv_fd didn't receive anything, error = %d\n", errno); + if (cmsg == NULL) { + printk(UM_KERN_ERR "rcv_fd didn't receive anything, " + "error = %d\n", errno); return -1; } - if((cmsg->cmsg_level != SOL_SOCKET) || - (cmsg->cmsg_type != SCM_RIGHTS)){ - printk("rcv_fd didn't receive a descriptor\n"); + if ((cmsg->cmsg_level != SOL_SOCKET) || + (cmsg->cmsg_type != SCM_RIGHTS)) { + printk(UM_KERN_ERR "rcv_fd didn't receive a descriptor\n"); return -1; } @@ -514,29 +503,28 @@ int os_rcv_fd(int fd, int *helper_pid_out) return new; } -int os_create_unix_socket(char *file, int len, int close_on_exec) +int os_create_unix_socket(const char *file, int len, int close_on_exec) { struct sockaddr_un addr; int sock, err; sock = socket(PF_UNIX, SOCK_DGRAM, 0); - if(sock < 0) + if (sock < 0) return -errno; - if(close_on_exec) { + if (close_on_exec) { err = os_set_exec_close(sock); - if(err < 0) - printk("create_unix_socket : close_on_exec failed, " - "err = %d", -err); + if (err < 0) + printk(UM_KERN_ERR "create_unix_socket : " + "close_on_exec failed, err = %d", -err); } addr.sun_family = AF_UNIX; - /* XXX Be more careful about overflow */ snprintf(addr.sun_path, len, "%s", file); err = bind(sock, (struct sockaddr *) &addr, sizeof(addr)); - if(err < 0) + if (err < 0) return -errno; return sock; @@ -557,17 +545,18 @@ int os_lock_file(int fd, int excl) int err, save; err = fcntl(fd, F_SETLK, &lock); - if(!err) + if (!err) goto out; save = -errno; err = fcntl(fd, F_GETLK, &lock); - if(err){ + if (err) { err = -errno; goto out; } - printk("F_SETLK failed, file already locked by pid %d\n", lock.l_pid); + printk(UM_KERN_ERR "F_SETLK failed, file already locked by pid %d\n", + lock.l_pid); err = save; out: return err; diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c index fba3f0fefeef..f4bd349d4412 100644 --- a/arch/um/os-Linux/helper.c +++ b/arch/um/os-Linux/helper.c @@ -1,22 +1,19 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <sched.h> -#include <limits.h> -#include <sys/signal.h> -#include <sys/wait.h> #include <sys/socket.h> -#include "user.h" +#include <sys/wait.h> +#include "kern_constants.h" #include "kern_util.h" #include "os.h" #include "um_malloc.h" -#include "kern_constants.h" +#include "user.h" struct helper_data { void (*pre_exec)(void*); @@ -30,21 +27,19 @@ static int helper_child(void *arg) { struct helper_data *data = arg; char **argv = data->argv; - int errval; + int err; if (data->pre_exec != NULL) (*data->pre_exec)(data->pre_data); - errval = execvp_noalloc(data->buf, argv[0], argv); - printk("helper_child - execvp of '%s' failed - errno = %d\n", argv[0], - -errval); - write(data->fd, &errval, sizeof(errval)); - kill(os_getpid(), SIGKILL); + err = execvp_noalloc(data->buf, argv[0], argv); + + /* If the exec succeeds, we don't get here */ + write(data->fd, &err, sizeof(err)); + return 0; } -/* Returns either the pid of the child process we run or -E* on failure. - * XXX The alloc_stack here breaks if this is called in the tracing thread, so - * we need to receive a preallocated stack (a local buffer is ok). */ +/* Returns either the pid of the child process we run or -E* on failure. */ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv) { struct helper_data data; @@ -58,14 +53,15 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv) ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds); if (ret < 0) { ret = -errno; - printk("run_helper : pipe failed, errno = %d\n", errno); + printk(UM_KERN_ERR "run_helper : pipe failed, errno = %d\n", + errno); goto out_free; } ret = os_set_exec_close(fds[1]); if (ret < 0) { - printk("run_helper : setting FD_CLOEXEC failed, ret = %d\n", - -ret); + printk(UM_KERN_ERR "run_helper : setting FD_CLOEXEC failed, " + "ret = %d\n", -ret); goto out_close; } @@ -79,7 +75,8 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv) pid = clone(helper_child, (void *) sp, CLONE_VM, &data); if (pid < 0) { ret = -errno; - printk("run_helper : clone failed, errno = %d\n", errno); + printk(UM_KERN_ERR "run_helper : clone failed, errno = %d\n", + errno); goto out_free2; } @@ -96,10 +93,9 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv) } else { if (n < 0) { n = -errno; - printk("run_helper : read on pipe failed, ret = %d\n", - -n); + printk(UM_KERN_ERR "run_helper : read on pipe failed, " + "ret = %d\n", -n); ret = n; - kill(pid, SIGKILL); } CATCH_EINTR(waitpid(pid, NULL, __WCLONE)); } @@ -129,50 +125,40 @@ int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags, pid = clone(proc, (void *) sp, flags, arg); if (pid < 0) { err = -errno; - printk("run_helper_thread : clone failed, errno = %d\n", - errno); + printk(UM_KERN_ERR "run_helper_thread : clone failed, " + "errno = %d\n", errno); return err; } if (stack_out == NULL) { CATCH_EINTR(pid = waitpid(pid, &status, __WCLONE)); if (pid < 0) { err = -errno; - printk("run_helper_thread - wait failed, errno = %d\n", - errno); + printk(UM_KERN_ERR "run_helper_thread - wait failed, " + "errno = %d\n", errno); pid = err; } if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) - printk("run_helper_thread - thread returned status " - "0x%x\n", status); + printk(UM_KERN_ERR "run_helper_thread - thread " + "returned status 0x%x\n", status); free_stack(stack, 0); } else *stack_out = stack; return pid; } -int helper_wait(int pid, int nohang, char *pname) +int helper_wait(int pid) { int ret, status; int wflags = __WCLONE; - if (nohang) - wflags |= WNOHANG; - - if (!pname) - pname = "helper_wait"; - CATCH_EINTR(ret = waitpid(pid, &status, wflags)); if (ret < 0) { - printk(UM_KERN_ERR "%s : waitpid process %d failed, " - "errno = %d\n", pname, pid, errno); + printk(UM_KERN_ERR "helper_wait : waitpid process %d failed, " + "errno = %d\n", pid, errno); return -errno; - } else if (nohang && ret == 0) { - printk(UM_KERN_ERR "%s : process %d has not exited\n", - pname, pid); - return -ECHILD; } else if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { - printk(UM_KERN_ERR "%s : process %d didn't exit with " - "status 0\n", pname, pid); + printk(UM_KERN_ERR "helper_wait : process %d exited with " + "status 0x%x\n", pid, status); return -ECHILD; } else return 0; diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c index 6aa6f95d6524..0348b975e81c 100644 --- a/arch/um/os-Linux/irq.c +++ b/arch/um/os-Linux/irq.c @@ -1,23 +1,19 @@ /* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #include <stdlib.h> -#include <unistd.h> #include <errno.h> +#include <poll.h> #include <signal.h> #include <string.h> -#include <sys/poll.h> -#include <sys/types.h> -#include <sys/time.h> -#include "kern_util.h" -#include "user.h" -#include "process.h" -#include "sigio.h" #include "irq_user.h" +#include "kern_constants.h" #include "os.h" +#include "process.h" #include "um_malloc.h" +#include "user.h" /* * Locked by irq_lock in arch/um/kernel/irq.c. Changed by os_create_pollfd @@ -36,7 +32,7 @@ int os_waiting_for_events(struct irq_fd *active_fds) if (n < 0) { err = -errno; if (errno != EINTR) - printk("sigio_handler: os_waiting_for_events:" + printk(UM_KERN_ERR "os_waiting_for_events:" " poll returned %d, errno = %d\n", n, errno); return err; } @@ -95,24 +91,26 @@ void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg, struct irq_fd *old_fd = *prev; if ((pollfds[i].fd != -1) && (pollfds[i].fd != (*prev)->fd)) { - printk("os_free_irq_by_cb - mismatch between " - "active_fds and pollfds, fd %d vs %d\n", + printk(UM_KERN_ERR "os_free_irq_by_cb - " + "mismatch between active_fds and " + "pollfds, fd %d vs %d\n", (*prev)->fd, pollfds[i].fd); goto out; } pollfds_num--; - /* This moves the *whole* array after pollfds[i] + /* + * This moves the *whole* array after pollfds[i] * (though it doesn't spot as such)! */ memmove(&pollfds[i], &pollfds[i + 1], (pollfds_num - i) * sizeof(pollfds[0])); - if(*last_irq_ptr2 == &old_fd->next) + if (*last_irq_ptr2 == &old_fd->next) *last_irq_ptr2 = prev; *prev = (*prev)->next; - if(old_fd->type == IRQ_WRITE) + if (old_fd->type == IRQ_WRITE) ignore_sigio_fd(old_fd->fd); kfree(old_fd); continue; @@ -138,14 +136,3 @@ void os_set_ioignore(void) { signal(SIGIO, SIG_IGN); } - -void init_irq_signals(int on_sigstack) -{ - int flags; - - flags = on_sigstack ? SA_ONSTACK : 0; - - set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART, - SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1); - signal(SIGWINCH, SIG_IGN); -} diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 82c3778627b8..abb9b0ffd960 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -73,7 +73,7 @@ static void install_fatal_handler(int sig) action.sa_handler = last_ditch_exit; if (sigaction(sig, &action, NULL) < 0) { printf("failed to install handler for signal %d - errno = %d\n", - errno); + sig, errno); exit(1); } } @@ -92,7 +92,8 @@ static void setup_env_path(void) * just use the default + /usr/lib/uml */ if (!old_path || (path_len = strlen(old_path)) == 0) { - putenv("PATH=:/bin:/usr/bin/" UML_LIB_PATH); + if (putenv("PATH=:/bin:/usr/bin/" UML_LIB_PATH)) + perror("couldn't putenv"); return; } @@ -100,15 +101,16 @@ static void setup_env_path(void) path_len += strlen("PATH=" UML_LIB_PATH) + 1; new_path = malloc(path_len); if (!new_path) { - perror("coudn't malloc to set a new PATH"); + perror("couldn't malloc to set a new PATH"); return; } snprintf(new_path, path_len, "PATH=%s" UML_LIB_PATH, old_path); - putenv(new_path); + if (putenv(new_path)) { + perror("couldn't putenv to set a new PATH"); + free(new_path); + } } -extern int uml_exitcode; - extern void scan_elf_aux( char **envp); int __init main(int argc, char **argv, char **envp) diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c index 436f8d20b20f..eedc2d88ef8a 100644 --- a/arch/um/os-Linux/mem.c +++ b/arch/um/os-Linux/mem.c @@ -9,7 +9,6 @@ #include <sys/types.h> #include <sys/mman.h> #include <sys/statfs.h> -#include "kern_util.h" #include "user.h" #include "mem_user.h" #include "init.h" @@ -30,7 +29,7 @@ static char *tempdir = NULL; static void __init find_tempdir(void) { - char *dirs[] = { "TMP", "TEMP", "TMPDIR", NULL }; + const char *dirs[] = { "TMP", "TEMP", "TMPDIR", NULL }; int i; char *dir = NULL; @@ -59,9 +58,10 @@ static void __init find_tempdir(void) * read the file as needed. If there's an error, -errno is returned; * if the end of the file is reached, 0 is returned. */ -static int next(int fd, char *buf, int size, char c) +static int next(int fd, char *buf, size_t size, char c) { - int n, len; + ssize_t n; + size_t len; char *ptr; while((ptr = strchr(buf, c)) == NULL){ @@ -172,13 +172,15 @@ int __init make_tempfile(const char *template, char **out_tempname, which_tmpdir(); tempname = malloc(MAXPATHLEN); + if (!tempname) + goto out; find_tempdir(); if (template[0] != '/') strcpy(tempname, tempdir); else tempname[0] = '\0'; - strcat(tempname, template); + strncat(tempname, template, MAXPATHLEN-1-strlen(tempname)); fd = mkstemp(tempname); if(fd < 0){ fprintf(stderr, "open - cannot create %s: %s\n", tempname, @@ -268,6 +270,7 @@ void __init check_tmpexec(void) if(addr == MAP_FAILED){ err = errno; perror("failed"); + close(fd); if(err == EPERM) printf("%s must be not mounted noexec\n",tempdir); exit(1); diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c index bda5c3150d6c..abf6beae3df1 100644 --- a/arch/um/os-Linux/process.c +++ b/arch/um/os-Linux/process.c @@ -249,7 +249,10 @@ void init_new_thread_signals(void) SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1); signal(SIGHUP, SIG_IGN); - init_irq_signals(1); + set_handler(SIGIO, (__sighandler_t) sig_handler, + SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, + SIGVTALRM, -1); + signal(SIGWINCH, SIG_IGN); } int run_kernel_thread(int (*fn)(void *), void *arg, jmp_buf **jmp_ptr) diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c index a32ba6ab1211..830fe6a1518a 100644 --- a/arch/um/os-Linux/registers.c +++ b/arch/um/os-Linux/registers.c @@ -8,47 +8,41 @@ #include <string.h> #include <sys/ptrace.h> #include "sysdep/ptrace.h" -#include "user.h" -/* This is set once at boot time and not changed thereafter */ - -static unsigned long exec_regs[MAX_REG_NR]; - -void init_thread_registers(struct uml_pt_regs *to) -{ - memcpy(to->gp, exec_regs, sizeof(to->gp)); -} - -void save_registers(int pid, struct uml_pt_regs *regs) +int save_registers(int pid, struct uml_pt_regs *regs) { int err; err = ptrace(PTRACE_GETREGS, pid, 0, regs->gp); if (err < 0) - panic("save_registers - saving registers failed, errno = %d\n", - errno); + return -errno; + return 0; } -void restore_registers(int pid, struct uml_pt_regs *regs) +int restore_registers(int pid, struct uml_pt_regs *regs) { int err; err = ptrace(PTRACE_SETREGS, pid, 0, regs->gp); if (err < 0) - panic("restore_registers - saving registers failed, " - "errno = %d\n", errno); + return -errno; + return 0; } -void init_registers(int pid) +/* This is set once at boot time and not changed thereafter */ + +static unsigned long exec_regs[MAX_REG_NR]; + +int init_registers(int pid) { int err; err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs); - if (err) - panic("check_ptrace : PTRACE_GETREGS failed, errno = %d", - errno); + if (err < 0) + return -errno; arch_init_registers(pid); + return 0; } void get_safe_registers(unsigned long *regs) diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index dc03e9cccb63..abf47a7c4abd 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -1,34 +1,33 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #include <unistd.h> -#include <stdlib.h> -#include <termios.h> +#include <errno.h> +#include <fcntl.h> +#include <poll.h> #include <pty.h> +#include <sched.h> #include <signal.h> -#include <fcntl.h> -#include <errno.h> #include <string.h> -#include <sched.h> -#include <sys/socket.h> -#include <sys/poll.h> -#include "init.h" -#include "user.h" +#include "kern_constants.h" #include "kern_util.h" -#include "sigio.h" +#include "init.h" #include "os.h" +#include "sigio.h" #include "um_malloc.h" -#include "init.h" +#include "user.h" -/* Protected by sigio_lock(), also used by sigio_cleanup, which is an +/* + * Protected by sigio_lock(), also used by sigio_cleanup, which is an * exitcall. */ static int write_sigio_pid = -1; static unsigned long write_sigio_stack; -/* These arrays are initialized before the sigio thread is started, and +/* + * These arrays are initialized before the sigio thread is started, and * the descriptors closed after it is killed. So, it can't see them change. * On the UML side, they are changed under the sigio_lock. */ @@ -43,7 +42,8 @@ struct pollfds { int used; }; -/* Protected by sigio_lock(). Used by the sigio thread, but the UML thread +/* + * Protected by sigio_lock(). Used by the sigio thread, but the UML thread * synchronizes with it. */ static struct pollfds current_poll; @@ -57,23 +57,26 @@ static int write_sigio_thread(void *unused) int i, n, respond_fd; char c; - signal(SIGWINCH, SIG_IGN); + signal(SIGWINCH, SIG_IGN); fds = ¤t_poll; - while(1){ + while (1) { n = poll(fds->poll, fds->used, -1); - if(n < 0){ - if(errno == EINTR) continue; - printk("write_sigio_thread : poll returned %d, " - "errno = %d\n", n, errno); + if (n < 0) { + if (errno == EINTR) + continue; + printk(UM_KERN_ERR "write_sigio_thread : poll returned " + "%d, errno = %d\n", n, errno); } - for(i = 0; i < fds->used; i++){ + for (i = 0; i < fds->used; i++) { p = &fds->poll[i]; - if(p->revents == 0) continue; - if(p->fd == sigio_private[1]){ + if (p->revents == 0) + continue; + if (p->fd == sigio_private[1]) { CATCH_EINTR(n = read(sigio_private[1], &c, sizeof(c))); - if(n != sizeof(c)) - printk("write_sigio_thread : " + if (n != sizeof(c)) + printk(UM_KERN_ERR + "write_sigio_thread : " "read on socket failed, " "err = %d\n", errno); tmp = current_poll; @@ -89,9 +92,10 @@ static int write_sigio_thread(void *unused) } CATCH_EINTR(n = write(respond_fd, &c, sizeof(c))); - if(n != sizeof(c)) - printk("write_sigio_thread : write on socket " - "failed, err = %d\n", errno); + if (n != sizeof(c)) + printk(UM_KERN_ERR "write_sigio_thread : " + "write on socket failed, err = %d\n", + errno); } } @@ -102,12 +106,13 @@ static int need_poll(struct pollfds *polls, int n) { struct pollfd *new; - if(n <= polls->size) + if (n <= polls->size) return 0; new = kmalloc(n * sizeof(struct pollfd), UM_GFP_ATOMIC); - if(new == NULL){ - printk("need_poll : failed to allocate new pollfds\n"); + if (new == NULL) { + printk(UM_KERN_ERR "need_poll : failed to allocate new " + "pollfds\n"); return -ENOMEM; } @@ -119,7 +124,8 @@ static int need_poll(struct pollfds *polls, int n) return 0; } -/* Must be called with sigio_lock held, because it's needed by the marked +/* + * Must be called with sigio_lock held, because it's needed by the marked * critical section. */ static void update_thread(void) @@ -129,15 +135,17 @@ static void update_thread(void) char c; flags = set_signals(0); - n = write(sigio_private[0], &c, sizeof(c)); - if(n != sizeof(c)){ - printk("update_thread : write failed, err = %d\n", errno); + CATCH_EINTR(n = write(sigio_private[0], &c, sizeof(c))); + if (n != sizeof(c)) { + printk(UM_KERN_ERR "update_thread : write failed, err = %d\n", + errno); goto fail; } CATCH_EINTR(n = read(sigio_private[0], &c, sizeof(c))); - if(n != sizeof(c)){ - printk("update_thread : read failed, err = %d\n", errno); + if (n != sizeof(c)) { + printk(UM_KERN_ERR "update_thread : read failed, err = %d\n", + errno); goto fail; } @@ -164,23 +172,23 @@ int add_sigio_fd(int fd) int err = 0, i, n; sigio_lock(); - for(i = 0; i < all_sigio_fds.used; i++){ - if(all_sigio_fds.poll[i].fd == fd) + for (i = 0; i < all_sigio_fds.used; i++) { + if (all_sigio_fds.poll[i].fd == fd) break; } - if(i == all_sigio_fds.used) + if (i == all_sigio_fds.used) goto out; p = &all_sigio_fds.poll[i]; - for(i = 0; i < current_poll.used; i++){ - if(current_poll.poll[i].fd == fd) + for (i = 0; i < current_poll.used; i++) { + if (current_poll.poll[i].fd == fd) goto out; } n = current_poll.used; err = need_poll(&next_poll, n + 1); - if(err) + if (err) goto out; memcpy(next_poll.poll, current_poll.poll, @@ -198,27 +206,29 @@ int ignore_sigio_fd(int fd) struct pollfd *p; int err = 0, i, n = 0; - /* This is called from exitcalls elsewhere in UML - if + /* + * This is called from exitcalls elsewhere in UML - if * sigio_cleanup has already run, then update_thread will hang * or fail because the thread is no longer running. */ - if(write_sigio_pid == -1) + if (write_sigio_pid == -1) return -EIO; sigio_lock(); - for(i = 0; i < current_poll.used; i++){ - if(current_poll.poll[i].fd == fd) break; + for (i = 0; i < current_poll.used; i++) { + if (current_poll.poll[i].fd == fd) + break; } - if(i == current_poll.used) + if (i == current_poll.used) goto out; err = need_poll(&next_poll, current_poll.used - 1); - if(err) + if (err) goto out; - for(i = 0; i < current_poll.used; i++){ + for (i = 0; i < current_poll.used; i++) { p = ¤t_poll.poll[i]; - if(p->fd != fd) + if (p->fd != fd) next_poll.poll[n++] = *p; } next_poll.used = current_poll.used - 1; @@ -235,7 +245,8 @@ static struct pollfd *setup_initial_poll(int fd) p = kmalloc(sizeof(struct pollfd), UM_GFP_KERNEL); if (p == NULL) { - printk("setup_initial_poll : failed to allocate poll\n"); + printk(UM_KERN_ERR "setup_initial_poll : failed to allocate " + "poll\n"); return NULL; } *p = ((struct pollfd) { .fd = fd, @@ -261,27 +272,29 @@ static void write_sigio_workaround(void) return; err = os_pipe(l_write_sigio_fds, 1, 1); - if(err < 0){ - printk("write_sigio_workaround - os_pipe 1 failed, " + if (err < 0) { + printk(UM_KERN_ERR "write_sigio_workaround - os_pipe 1 failed, " "err = %d\n", -err); return; } err = os_pipe(l_sigio_private, 1, 1); - if(err < 0){ - printk("write_sigio_workaround - os_pipe 2 failed, " + if (err < 0) { + printk(UM_KERN_ERR "write_sigio_workaround - os_pipe 2 failed, " "err = %d\n", -err); goto out_close1; } p = setup_initial_poll(l_sigio_private[1]); - if(!p) + if (!p) goto out_close2; sigio_lock(); - /* Did we race? Don't try to optimize this, please, it's not so likely - * to happen, and no more than once at the boot. */ - if(write_sigio_pid != -1) + /* + * Did we race? Don't try to optimize this, please, it's not so likely + * to happen, and no more than once at the boot. + */ + if (write_sigio_pid != -1) goto out_free; current_poll = ((struct pollfds) { .poll = p, @@ -333,19 +346,19 @@ void maybe_sigio_broken(int fd, int read) { int err; - if(!isatty(fd)) + if (!isatty(fd)) return; - if((read || pty_output_sigio) && (!read || pty_close_sigio)) + if ((read || pty_output_sigio) && (!read || pty_close_sigio)) return; write_sigio_workaround(); sigio_lock(); err = need_poll(&all_sigio_fds, all_sigio_fds.used + 1); - if(err){ - printk("maybe_sigio_broken - failed to add pollfd for " - "descriptor %d\n", fd); + if (err) { + printk(UM_KERN_ERR "maybe_sigio_broken - failed to add pollfd " + "for descriptor %d\n", fd); goto out; } @@ -388,7 +401,7 @@ static void openpty_cb(void *arg) struct openpty_arg *info = arg; info->err = 0; - if(openpty(&info->master, &info->slave, NULL, NULL, NULL)) + if (openpty(&info->master, &info->slave, NULL, NULL, NULL)) info->err = -errno; } @@ -397,17 +410,17 @@ static int async_pty(int master, int slave) int flags; flags = fcntl(master, F_GETFL); - if(flags < 0) + if (flags < 0) return -errno; - if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || - (fcntl(master, F_SETOWN, os_getpid()) < 0)) + if ((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || + (fcntl(master, F_SETOWN, os_getpid()) < 0)) return -errno; - if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) + if ((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) return -errno; - return(0); + return 0; } static void __init check_one_sigio(void (*proc)(int, int)) @@ -417,34 +430,49 @@ static void __init check_one_sigio(void (*proc)(int, int)) int master, slave, err; initial_thread_cb(openpty_cb, &pty); - if(pty.err){ - printk("openpty failed, errno = %d\n", -pty.err); + if (pty.err) { + printk(UM_KERN_ERR "check_one_sigio failed, errno = %d\n", + -pty.err); return; } master = pty.master; slave = pty.slave; - if((master == -1) || (slave == -1)){ - printk("openpty failed to allocate a pty\n"); + if ((master == -1) || (slave == -1)) { + printk(UM_KERN_ERR "check_one_sigio failed to allocate a " + "pty\n"); return; } /* Not now, but complain so we now where we failed. */ err = raw(master); - if (err < 0) - panic("check_sigio : __raw failed, errno = %d\n", -err); + if (err < 0) { + printk(UM_KERN_ERR "check_one_sigio : raw failed, errno = %d\n", + -err); + return; + } err = async_pty(master, slave); - if(err < 0) - panic("tty_fds : sigio_async failed, err = %d\n", -err); + if (err < 0) { + printk(UM_KERN_ERR "check_one_sigio : sigio_async failed, " + "err = %d\n", -err); + return; + } + + if (sigaction(SIGIO, NULL, &old) < 0) { + printk(UM_KERN_ERR "check_one_sigio : sigaction 1 failed, " + "errno = %d\n", errno); + return; + } - if(sigaction(SIGIO, NULL, &old) < 0) - panic("check_sigio : sigaction 1 failed, errno = %d\n", errno); new = old; new.sa_handler = handler; - if(sigaction(SIGIO, &new, NULL) < 0) - panic("check_sigio : sigaction 2 failed, errno = %d\n", errno); + if (sigaction(SIGIO, &new, NULL) < 0) { + printk(UM_KERN_ERR "check_one_sigio : sigaction 2 failed, " + "errno = %d\n", errno); + return; + } got_sigio = 0; (*proc)(master, slave); @@ -452,8 +480,9 @@ static void __init check_one_sigio(void (*proc)(int, int)) close(master); close(slave); - if(sigaction(SIGIO, &old, NULL) < 0) - panic("check_sigio : sigaction 3 failed, errno = %d\n", errno); + if (sigaction(SIGIO, &old, NULL) < 0) + printk(UM_KERN_ERR "check_one_sigio : sigaction 3 failed, " + "errno = %d\n", errno); } static void tty_output(int master, int slave) @@ -461,42 +490,45 @@ static void tty_output(int master, int slave) int n; char buf[512]; - printk("Checking that host ptys support output SIGIO..."); + printk(UM_KERN_INFO "Checking that host ptys support output SIGIO..."); memset(buf, 0, sizeof(buf)); - while(write(master, buf, sizeof(buf)) > 0) ; - if(errno != EAGAIN) - panic("tty_output : write failed, errno = %d\n", errno); - while(((n = read(slave, buf, sizeof(buf))) > 0) && !got_sigio) ; + while (write(master, buf, sizeof(buf)) > 0) ; + if (errno != EAGAIN) + printk(UM_KERN_ERR "tty_output : write failed, errno = %d\n", + errno); + while (((n = read(slave, buf, sizeof(buf))) > 0) && !got_sigio) + ; - if(got_sigio){ - printk("Yes\n"); + if (got_sigio) { + printk(UM_KERN_CONT "Yes\n"); pty_output_sigio = 1; - } - else if(n == -EAGAIN) - printk("No, enabling workaround\n"); - else panic("tty_output : read failed, err = %d\n", n); + } else if (n == -EAGAIN) + printk(UM_KERN_CONT "No, enabling workaround\n"); + else + printk(UM_KERN_CONT "tty_output : read failed, err = %d\n", n); } static void tty_close(int master, int slave) { - printk("Checking that host ptys support SIGIO on close..."); + printk(UM_KERN_INFO "Checking that host ptys support SIGIO on " + "close..."); close(slave); - if(got_sigio){ - printk("Yes\n"); + if (got_sigio) { + printk(UM_KERN_CONT "Yes\n"); pty_close_sigio = 1; - } - else printk("No, enabling workaround\n"); + } else + printk(UM_KERN_CONT "No, enabling workaround\n"); } void __init check_sigio(void) { - if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) && - (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){ - printk("No pseudo-terminals available - skipping pty SIGIO " - "check\n"); + if ((access("/dev/ptmx", R_OK) < 0) && + (access("/dev/ptyp0", R_OK) < 0)) { + printk(UM_KERN_WARNING "No pseudo-terminals available - " + "skipping pty SIGIO check\n"); return; } check_one_sigio(tty_output); diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index e9800b0b5689..0fb0cc8d4757 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -9,11 +9,47 @@ #include <errno.h> #include <signal.h> #include <strings.h> +#include "as-layout.h" +#include "kern_util.h" #include "os.h" #include "sysdep/barrier.h" #include "sysdep/sigcontext.h" #include "user.h" +/* Copied from linux/compiler-gcc.h since we can't include it directly */ +#define barrier() __asm__ __volatile__("": : :"memory") + +void (*sig_info[NSIG])(int, struct uml_pt_regs *) = { + [SIGTRAP] = relay_signal, + [SIGFPE] = relay_signal, + [SIGILL] = relay_signal, + [SIGWINCH] = winch, + [SIGBUS] = bus_handler, + [SIGSEGV] = segv_handler, + [SIGIO] = sigio_handler, + [SIGVTALRM] = timer_handler }; + +static void sig_handler_common(int sig, struct sigcontext *sc) +{ + struct uml_pt_regs r; + int save_errno = errno; + + r.is_user = 0; + if (sig == SIGSEGV) { + /* For segfaults, we want the data from the sigcontext. */ + copy_sc(&r, sc); + GET_FAULTINFO_FROM_SC(r.faultinfo, sc); + } + + /* enable signals if sig isn't IRQ signal */ + if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM)) + unblock_signals(); + + (*sig_info[sig])(sig, &r); + + errno = save_errno; +} + /* * These are the asynchronous signals. SIGPROF is excluded because we want to * be able to profile all of UML, not just the non-critical sections. If @@ -26,13 +62,8 @@ #define SIGVTALRM_BIT 1 #define SIGVTALRM_MASK (1 << SIGVTALRM_BIT) -/* - * These are used by both the signal handlers and - * block/unblock_signals. I don't want modifications cached in a - * register - they must go straight to memory. - */ -static volatile int signals_enabled = 1; -static volatile int pending = 0; +static int signals_enabled; +static unsigned int signals_pending; void sig_handler(int sig, struct sigcontext *sc) { @@ -40,13 +71,13 @@ void sig_handler(int sig, struct sigcontext *sc) enabled = signals_enabled; if (!enabled && (sig == SIGIO)) { - pending |= SIGIO_MASK; + signals_pending |= SIGIO_MASK; return; } block_signals(); - sig_handler_common_skas(sig, sc); + sig_handler_common(sig, sc); set_signals(enabled); } @@ -68,7 +99,7 @@ void alarm_handler(int sig, struct sigcontext *sc) enabled = signals_enabled; if (!signals_enabled) { - pending |= SIGVTALRM_MASK; + signals_pending |= SIGVTALRM_MASK; return; } @@ -94,16 +125,6 @@ void set_sigstack(void *sig_stack, int size) panic("enabling signal stack failed, errno = %d\n", errno); } -void remove_sigstack(void) -{ - stack_t stack = ((stack_t) { .ss_flags = SS_DISABLE, - .ss_sp = NULL, - .ss_size = 0 }); - - if (sigaltstack(&stack, NULL) != 0) - panic("disabling signal stack failed, errno = %d\n", errno); -} - void (*handlers[_NSIG])(int sig, struct sigcontext *sc); void handle_signal(int sig, struct sigcontext *sc) @@ -166,6 +187,9 @@ void set_handler(int sig, void (*handler)(int), int flags, ...) sigaddset(&action.sa_mask, mask); va_end(ap); + if (sig == SIGSEGV) + flags |= SA_NODEFER; + action.sa_flags = flags; action.sa_restorer = NULL; if (sigaction(sig, &action, NULL) < 0) @@ -179,12 +203,14 @@ void set_handler(int sig, void (*handler)(int), int flags, ...) int change_sig(int signal, int on) { - sigset_t sigset, old; + sigset_t sigset; sigemptyset(&sigset); sigaddset(&sigset, signal); - sigprocmask(on ? SIG_UNBLOCK : SIG_BLOCK, &sigset, &old); - return !sigismember(&old, signal); + if (sigprocmask(on ? SIG_UNBLOCK : SIG_BLOCK, &sigset, NULL) < 0) + return -errno; + + return 0; } void block_signals(void) @@ -196,7 +222,7 @@ void block_signals(void) * This might matter if gcc figures out how to inline this and * decides to shuffle this code into the caller. */ - mb(); + barrier(); } void unblock_signals(void) @@ -209,36 +235,26 @@ void unblock_signals(void) /* * We loop because the IRQ handler returns with interrupts off. So, * interrupts may have arrived and we need to re-enable them and - * recheck pending. + * recheck signals_pending. */ while(1) { /* * Save and reset save_pending after enabling signals. This - * way, pending won't be changed while we're reading it. + * way, signals_pending won't be changed while we're reading it. */ signals_enabled = 1; /* - * Setting signals_enabled and reading pending must + * Setting signals_enabled and reading signals_pending must * happen in this order. */ - mb(); - - save_pending = pending; - if (save_pending == 0) { - /* - * This must return with signals enabled, so - * this barrier ensures that writes are - * flushed out before the return. This might - * matter if gcc figures out how to inline - * this (unlikely, given its size) and decides - * to shuffle this code into the caller. - */ - mb(); + barrier(); + + save_pending = signals_pending; + if (save_pending == 0) return; - } - pending = 0; + signals_pending = 0; /* * We have pending interrupts, so disable signals, as the @@ -254,7 +270,7 @@ void unblock_signals(void) * back here. */ if (save_pending & SIGIO_MASK) - sig_handler_common_skas(SIGIO, NULL); + sig_handler_common(SIGIO, NULL); if (save_pending & SIGVTALRM_MASK) real_alarm_handler(NULL); diff --git a/arch/um/os-Linux/skas/Makefile b/arch/um/os-Linux/skas/Makefile index 5fd8d4dad66a..d2ea3409e072 100644 --- a/arch/um/os-Linux/skas/Makefile +++ b/arch/um/os-Linux/skas/Makefile @@ -1,10 +1,10 @@ # -# Copyright (C) 2002 - 2004 Jeff Dike (jdike@addtoit.com) +# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) # Licensed under the GPL # -obj-y := mem.o process.o trap.o +obj-y := mem.o process.o -USER_OBJS := mem.o process.o trap.o +USER_OBJS := $(obj-y) include arch/um/scripts/Makefile.rules diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index e8b7a97e83d3..d36c89c24a45 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -15,6 +15,7 @@ #include "as-layout.h" #include "chan_user.h" #include "kern_constants.h" +#include "kern_util.h" #include "mem.h" #include "os.h" #include "process.h" @@ -37,27 +38,27 @@ int is_skas_winch(int pid, int fd, void *data) static int ptrace_dump_regs(int pid) { - unsigned long regs[MAX_REG_NR]; - int i; + unsigned long regs[MAX_REG_NR]; + int i; - if (ptrace(PTRACE_GETREGS, pid, 0, regs) < 0) - return -errno; + if (ptrace(PTRACE_GETREGS, pid, 0, regs) < 0) + return -errno; printk(UM_KERN_ERR "Stub registers -\n"); for (i = 0; i < ARRAY_SIZE(regs); i++) printk(UM_KERN_ERR "\t%d - %lx\n", i, regs[i]); - return 0; + return 0; } /* * Signals that are OK to receive in the stub - we'll just continue it. * SIGWINCH will happen when UML is inside a detached screen. */ -#define STUB_SIG_MASK ((1 << SIGVTALRM) | (1 << SIGWINCH)) +#define STUB_SIG_MASK (1 << SIGVTALRM) /* Signals that the stub will finish with - anything else is an error */ -#define STUB_DONE_MASK ((1 << SIGUSR1) | (1 << SIGTRAP)) +#define STUB_DONE_MASK (1 << SIGTRAP) void wait_stub_done(int pid) { @@ -72,9 +73,11 @@ void wait_stub_done(int pid) break; err = ptrace(PTRACE_CONT, pid, 0, 0); - if (err) - panic("wait_stub_done : continue failed, errno = %d\n", - errno); + if (err) { + printk(UM_KERN_ERR "wait_stub_done : continue failed, " + "errno = %d\n", errno); + fatal_sigsegv(); + } } if (((1 << WSTOPSIG(status)) & STUB_DONE_MASK) != 0) @@ -85,8 +88,10 @@ bad_wait: if (err) printk(UM_KERN_ERR "Failed to get registers from stub, " "errno = %d\n", -err); - panic("wait_stub_done : failed to wait for SIGUSR1/SIGTRAP, pid = %d, " - "n = %d, errno = %d, status = 0x%x\n", pid, n, errno, status); + printk(UM_KERN_ERR "wait_stub_done : failed to wait for SIGTRAP, " + "pid = %d, n = %d, errno = %d, status = 0x%x\n", pid, n, errno, + status); + fatal_sigsegv(); } extern unsigned long current_stub_stack(void); @@ -97,9 +102,11 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi) if (ptrace_faultinfo) { err = ptrace(PTRACE_FAULTINFO, pid, 0, fi); - if (err) - panic("get_skas_faultinfo - PTRACE_FAULTINFO failed, " - "errno = %d\n", errno); + if (err) { + printk(UM_KERN_ERR "get_skas_faultinfo - " + "PTRACE_FAULTINFO failed, errno = %d\n", errno); + fatal_sigsegv(); + } /* Special handling for i386, which has different structs */ if (sizeof(struct ptrace_faultinfo) < sizeof(struct faultinfo)) @@ -109,9 +116,11 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi) } else { err = ptrace(PTRACE_CONT, pid, 0, SIGSEGV); - if (err) - panic("Failed to continue stub, pid = %d, errno = %d\n", - pid, errno); + if (err) { + printk(UM_KERN_ERR "Failed to continue stub, pid = %d, " + "errno = %d\n", pid, errno); + fatal_sigsegv(); + } wait_stub_done(pid); /* @@ -137,6 +146,9 @@ static void handle_trap(int pid, struct uml_pt_regs *regs, { int err, status; + if ((UPT_IP(regs) >= STUB_START) && (UPT_IP(regs) < STUB_END)) + fatal_sigsegv(); + /* Mark this as a syscall */ UPT_SYSCALL_NR(regs) = PT_SYSCALL_NR(regs->gp); @@ -144,25 +156,31 @@ static void handle_trap(int pid, struct uml_pt_regs *regs, { err = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET, __NR_getpid); - if (err < 0) - panic("handle_trap - nullifying syscall failed, " - "errno = %d\n", errno); + if (err < 0) { + printk(UM_KERN_ERR "handle_trap - nullifying syscall " + "failed, errno = %d\n", errno); + fatal_sigsegv(); + } err = ptrace(PTRACE_SYSCALL, pid, 0, 0); - if (err < 0) - panic("handle_trap - continuing to end of syscall " - "failed, errno = %d\n", errno); + if (err < 0) { + printk(UM_KERN_ERR "handle_trap - continuing to end of " + "syscall failed, errno = %d\n", errno); + fatal_sigsegv(); + } CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED | __WALL)); if ((err < 0) || !WIFSTOPPED(status) || - (WSTOPSIG(status) != SIGTRAP + 0x80)) { - err = ptrace_dump_regs(pid); - if (err) - printk(UM_KERN_ERR "Failed to get registers " + (WSTOPSIG(status) != SIGTRAP + 0x80)) { + err = ptrace_dump_regs(pid); + if (err) + printk(UM_KERN_ERR "Failed to get registers " "from process, errno = %d\n", -err); - panic("handle_trap - failed to wait at end of syscall, " - "errno = %d, status = %d\n", errno, status); - } + printk(UM_KERN_ERR "handle_trap - failed to wait at " + "end of syscall, errno = %d, status = %d\n", + errno, status); + fatal_sigsegv(); + } } handle_syscall(regs); @@ -178,10 +196,13 @@ static int userspace_tramp(void *stack) ptrace(PTRACE_TRACEME, 0, 0, 0); signal(SIGTERM, SIG_DFL); + signal(SIGWINCH, SIG_IGN); err = set_interval(); - if (err) - panic("userspace_tramp - setting timer failed, errno = %d\n", - err); + if (err) { + printk(UM_KERN_ERR "userspace_tramp - setting timer failed, " + "errno = %d\n", err); + exit(1); + } if (!proc_mm) { /* @@ -221,16 +242,14 @@ static int userspace_tramp(void *stack) set_sigstack((void *) STUB_DATA, UM_KERN_PAGE_SIZE); sigemptyset(&sa.sa_mask); - sigaddset(&sa.sa_mask, SIGIO); - sigaddset(&sa.sa_mask, SIGWINCH); - sigaddset(&sa.sa_mask, SIGVTALRM); - sigaddset(&sa.sa_mask, SIGUSR1); - sa.sa_flags = SA_ONSTACK; + sa.sa_flags = SA_ONSTACK | SA_NODEFER; sa.sa_handler = (void *) v; sa.sa_restorer = NULL; - if (sigaction(SIGSEGV, &sa, NULL) < 0) - panic("userspace_tramp - setting SIGSEGV handler " - "failed - errno = %d\n", errno); + if (sigaction(SIGSEGV, &sa, NULL) < 0) { + printk(UM_KERN_ERR "userspace_tramp - setting SIGSEGV " + "handler failed - errno = %d\n", errno); + exit(1); + } } kill(os_getpid(), SIGSTOP); @@ -246,13 +265,18 @@ int start_userspace(unsigned long stub_stack) { void *stack; unsigned long sp; - int pid, status, n, flags; + int pid, status, n, flags, err; stack = mmap(NULL, UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (stack == MAP_FAILED) - panic("start_userspace : mmap failed, errno = %d", errno); + if (stack == MAP_FAILED) { + err = -errno; + printk(UM_KERN_ERR "start_userspace : mmap failed, " + "errno = %d\n", errno); + return err; + } + sp = (unsigned long) stack + UM_KERN_PAGE_SIZE - sizeof(void *); flags = CLONE_FILES; @@ -262,29 +286,50 @@ int start_userspace(unsigned long stub_stack) flags |= SIGCHLD; pid = clone(userspace_tramp, (void *) sp, flags, (void *) stub_stack); - if (pid < 0) - panic("start_userspace : clone failed, errno = %d", errno); + if (pid < 0) { + err = -errno; + printk(UM_KERN_ERR "start_userspace : clone failed, " + "errno = %d\n", errno); + return err; + } do { CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED | __WALL)); - if (n < 0) - panic("start_userspace : wait failed, errno = %d", - errno); + if (n < 0) { + err = -errno; + printk(UM_KERN_ERR "start_userspace : wait failed, " + "errno = %d\n", errno); + goto out_kill; + } } while (WIFSTOPPED(status) && (WSTOPSIG(status) == SIGVTALRM)); - if (!WIFSTOPPED(status) || (WSTOPSIG(status) != SIGSTOP)) - panic("start_userspace : expected SIGSTOP, got status = %d", - status); + if (!WIFSTOPPED(status) || (WSTOPSIG(status) != SIGSTOP)) { + err = -EINVAL; + printk(UM_KERN_ERR "start_userspace : expected SIGSTOP, got " + "status = %d\n", status); + goto out_kill; + } if (ptrace(PTRACE_OLDSETOPTIONS, pid, NULL, - (void *) PTRACE_O_TRACESYSGOOD) < 0) - panic("start_userspace : PTRACE_OLDSETOPTIONS failed, " - "errno = %d\n", errno); + (void *) PTRACE_O_TRACESYSGOOD) < 0) { + err = -errno; + printk(UM_KERN_ERR "start_userspace : PTRACE_OLDSETOPTIONS " + "failed, errno = %d\n", errno); + goto out_kill; + } - if (munmap(stack, UM_KERN_PAGE_SIZE) < 0) - panic("start_userspace : munmap failed, errno = %d\n", errno); + if (munmap(stack, UM_KERN_PAGE_SIZE) < 0) { + err = -errno; + printk(UM_KERN_ERR "start_userspace : munmap failed, " + "errno = %d\n", errno); + goto out_kill; + } return pid; + + out_kill: + os_kill_ptraced_process(pid, 1); + return err; } void userspace(struct uml_pt_regs *regs) @@ -302,7 +347,16 @@ void userspace(struct uml_pt_regs *regs) nsecs += os_nsecs(); while (1) { - restore_registers(pid, regs); + /* + * This can legitimately fail if the process loads a + * bogus value into a segment register. It will + * segfault and PTRACE_GETREGS will read that value + * out of the process. However, PTRACE_SETREGS will + * fail. In this case, there is nothing to do but + * just kill the process. + */ + if (ptrace(PTRACE_SETREGS, pid, 0, regs->gp)) + fatal_sigsegv(); /* Now we set local_using_sysemu to be used for one loop */ local_using_sysemu = get_using_sysemu(); @@ -310,19 +364,26 @@ void userspace(struct uml_pt_regs *regs) op = SELECT_PTRACE_OPERATION(local_using_sysemu, singlestepping(NULL)); - err = ptrace(op, pid, 0, 0); - if (err) - panic("userspace - could not resume userspace process, " - "pid=%d, ptrace operation = %d, errno = %d\n", - pid, op, errno); + if (ptrace(op, pid, 0, 0)) { + printk(UM_KERN_ERR "userspace - ptrace continue " + "failed, op = %d, errno = %d\n", op, errno); + fatal_sigsegv(); + } CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED | __WALL)); - if (err < 0) - panic("userspace - waitpid failed, errno = %d\n", - errno); + if (err < 0) { + printk(UM_KERN_ERR "userspace - wait failed, " + "errno = %d\n", errno); + fatal_sigsegv(); + } regs->is_user = 1; - save_registers(pid, regs); + if (ptrace(PTRACE_GETREGS, pid, 0, regs->gp)) { + printk(UM_KERN_ERR "userspace - PTRACE_GETREGS failed, " + "errno = %d\n", errno); + fatal_sigsegv(); + } + UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */ if (WIFSTOPPED(status)) { @@ -345,7 +406,7 @@ void userspace(struct uml_pt_regs *regs) break; case SIGVTALRM: now = os_nsecs(); - if(now < nsecs) + if (now < nsecs) break; block_signals(); (*sig_info[sig])(sig, regs); @@ -368,6 +429,7 @@ void userspace(struct uml_pt_regs *regs) default: printk(UM_KERN_ERR "userspace - child stopped " "with signal %d\n", sig); + fatal_sigsegv(); } pid = userspace_pid[0]; interrupt_end(); @@ -419,9 +481,12 @@ int copy_context_skas0(unsigned long new_stack, int pid) .it_interval = tv }) }); err = ptrace_setregs(pid, thread_regs); - if (err < 0) - panic("copy_context_skas0 : PTRACE_SETREGS failed, " - "pid = %d, errno = %d\n", pid, -err); + if (err < 0) { + err = -errno; + printk(UM_KERN_ERR "copy_context_skas0 : PTRACE_SETREGS " + "failed, pid = %d, errno = %d\n", pid, -err); + return err; + } /* set a well known return code for detection of child write failure */ child_data->err = 12345678; @@ -431,31 +496,47 @@ int copy_context_skas0(unsigned long new_stack, int pid) * parent's stack, and check, if bad result. */ err = ptrace(PTRACE_CONT, pid, 0, 0); - if (err) - panic("Failed to continue new process, pid = %d, " - "errno = %d\n", pid, errno); + if (err) { + err = -errno; + printk(UM_KERN_ERR "Failed to continue new process, pid = %d, " + "errno = %d\n", pid, errno); + return err; + } + wait_stub_done(pid); pid = data->err; - if (pid < 0) - panic("copy_context_skas0 - stub-parent reports error %d\n", - -pid); + if (pid < 0) { + printk(UM_KERN_ERR "copy_context_skas0 - stub-parent reports " + "error %d\n", -pid); + return pid; + } /* * Wait, until child has finished too: read child's result from * child's stack and check it. */ wait_stub_done(pid); - if (child_data->err != STUB_DATA) - panic("copy_context_skas0 - stub-child reports error %ld\n", - child_data->err); + if (child_data->err != STUB_DATA) { + printk(UM_KERN_ERR "copy_context_skas0 - stub-child reports " + "error %ld\n", child_data->err); + err = child_data->err; + goto out_kill; + } if (ptrace(PTRACE_OLDSETOPTIONS, pid, NULL, - (void *)PTRACE_O_TRACESYSGOOD) < 0) - panic("copy_context_skas0 : PTRACE_OLDSETOPTIONS failed, " - "errno = %d\n", errno); + (void *)PTRACE_O_TRACESYSGOOD) < 0) { + err = -errno; + printk(UM_KERN_ERR "copy_context_skas0 : PTRACE_OLDSETOPTIONS " + "failed, errno = %d\n", errno); + goto out_kill; + } return pid; + + out_kill: + os_kill_ptraced_process(pid, 1); + return err; } /* @@ -463,8 +544,8 @@ int copy_context_skas0(unsigned long new_stack, int pid) * available. Opening /proc/mm creates a new mm_context, which lacks * the stub-pages. Thus, we map them using /proc/mm-fd */ -void map_stub_pages(int fd, unsigned long code, - unsigned long data, unsigned long stack) +int map_stub_pages(int fd, unsigned long code, unsigned long data, + unsigned long stack) { struct proc_mm_op mmop; int n; @@ -488,8 +569,9 @@ void map_stub_pages(int fd, unsigned long code, printk(UM_KERN_ERR "mmap args - addr = 0x%lx, fd = %d, " "offset = %llx\n", code, code_fd, (unsigned long long) code_offset); - panic("map_stub_pages : /proc/mm map for code failed, " - "err = %d\n", n); + printk(UM_KERN_ERR "map_stub_pages : /proc/mm map for code " + "failed, err = %d\n", n); + return -n; } if (stack) { @@ -507,10 +589,15 @@ void map_stub_pages(int fd, unsigned long code, .offset = map_offset } } }); CATCH_EINTR(n = write(fd, &mmop, sizeof(mmop))); - if (n != sizeof(mmop)) - panic("map_stub_pages : /proc/mm map for data failed, " - "err = %d\n", errno); + if (n != sizeof(mmop)) { + n = errno; + printk(UM_KERN_ERR "map_stub_pages : /proc/mm map for " + "data failed, err = %d\n", n); + return -n; + } } + + return 0; } void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)) @@ -571,7 +658,9 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf) kmalloc_ok = 0; return 1; default: - panic("Bad sigsetjmp return in start_idle_thread - %d\n", n); + printk(UM_KERN_ERR "Bad sigsetjmp return in " + "start_idle_thread - %d\n", n); + fatal_sigsegv(); } longjmp(*switch_buf, 1); } @@ -614,9 +703,11 @@ void __switch_mm(struct mm_id *mm_idp) if (proc_mm) { err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0, mm_idp->u.mm_fd); - if (err) - panic("__switch_mm - PTRACE_SWITCH_MM failed, " - "errno = %d\n", errno); + if (err) { + printk(UM_KERN_ERR "__switch_mm - PTRACE_SWITCH_MM " + "failed, errno = %d\n", errno); + fatal_sigsegv(); + } } else userspace_pid[0] = mm_idp->u.pid; } diff --git a/arch/um/os-Linux/skas/trap.c b/arch/um/os-Linux/skas/trap.c deleted file mode 100644 index 3b1b9244f468..000000000000 --- a/arch/um/os-Linux/skas/trap.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Licensed under the GPL - */ - -#if 0 -#include "kern_util.h" -#include "skas.h" -#include "ptrace_user.h" -#include "sysdep/ptrace_user.h" -#endif - -#include <errno.h> -#include <signal.h> -#include "sysdep/ptrace.h" -#include "kern_constants.h" -#include "as-layout.h" -#include "os.h" -#include "sigcontext.h" -#include "task.h" - -static struct uml_pt_regs ksig_regs[UM_NR_CPUS]; - -void sig_handler_common_skas(int sig, void *sc_ptr) -{ - struct sigcontext *sc = sc_ptr; - struct uml_pt_regs *r; - void (*handler)(int, struct uml_pt_regs *); - int save_user, save_errno = errno; - - /* - * This is done because to allow SIGSEGV to be delivered inside a SEGV - * handler. This can happen in copy_user, and if SEGV is disabled, - * the process will die. - * XXX Figure out why this is better than SA_NODEFER - */ - if (sig == SIGSEGV) { - change_sig(SIGSEGV, 1); - /* - * For segfaults, we want the data from the - * sigcontext. In this case, we don't want to mangle - * the process registers, so use a static set of - * registers. For other signals, the process - * registers are OK. - */ - r = &ksig_regs[cpu()]; - copy_sc(r, sc_ptr); - } - else r = TASK_REGS(get_current()); - - save_user = r->is_user; - r->is_user = 0; - if ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) || - (sig == SIGILL) || (sig == SIGTRAP)) - GET_FAULTINFO_FROM_SC(r->faultinfo, sc); - - change_sig(SIGUSR1, 1); - - handler = sig_info[sig]; - - /* unblock SIGVTALRM, SIGIO if sig isn't IRQ signal */ - if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM)) - unblock_signals(); - - handler(sig, r); - - errno = save_errno; - r->is_user = save_user; -} diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 7b81f6c08a5e..b616e15638fb 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -60,10 +60,11 @@ static int ptrace_child(void) * the UML code itself. */ ret = 2; - _exit(ret); + + exit(ret); } -static void fatal_perror(char *str) +static void fatal_perror(const char *str) { perror(str); exit(1); @@ -341,6 +342,8 @@ static void __init check_coredump_limit(void) void __init os_early_checks(void) { + int pid; + /* Print out the core dump limits early */ check_coredump_limit(); @@ -350,6 +353,11 @@ void __init os_early_checks(void) * kernel is running. */ check_tmpexec(); + + pid = start_ptraced_child(); + if (init_registers(pid)) + fatal("Failed to initialize default registers"); + stop_ptraced_child(pid, 1, 1); } static int __init noprocmm_cmd_param(char *str, int* add) @@ -411,7 +419,6 @@ static inline void check_skas3_ptrace_faultinfo(void) non_fatal("found\n"); } - init_registers(pid); stop_ptraced_child(pid, 1, 1); } @@ -466,7 +473,7 @@ static inline void check_skas3_proc_mm(void) else non_fatal("found\n"); } -int can_do_skas(void) +void can_do_skas(void) { non_fatal("Checking for the skas3 patch in the host:\n"); @@ -476,8 +483,6 @@ int can_do_skas(void) if (!proc_mm || !ptrace_faultinfo || !ptrace_ldt) skas_needs_stub = 1; - - return 1; } int __init parse_iomem(char *str, int *add) diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c deleted file mode 100644 index 2a1c9843e32e..000000000000 --- a/arch/um/os-Linux/trap.c +++ /dev/null @@ -1,23 +0,0 @@ -/* - * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Licensed under the GPL - */ - -#include <signal.h> -#include "os.h" -#include "sysdep/ptrace.h" - -/* Initialized from linux_main() */ -void (*sig_info[NSIG])(int, struct uml_pt_regs *); - -void os_fill_handlinfo(struct kern_handlers h) -{ - sig_info[SIGTRAP] = h.relay_signal; - sig_info[SIGFPE] = h.relay_signal; - sig_info[SIGILL] = h.relay_signal; - sig_info[SIGWINCH] = h.winch; - sig_info[SIGBUS] = h.bus_handler; - sig_info[SIGSEGV] = h.page_fault; - sig_info[SIGIO] = h.sigio_handler; - sig_info[SIGVTALRM] = h.timer_handler; -} diff --git a/arch/um/os-Linux/tty.c b/arch/um/os-Linux/tty.c index 4cfdd18ea1ef..b09ff66a77ee 100644 --- a/arch/um/os-Linux/tty.c +++ b/arch/um/os-Linux/tty.c @@ -1,13 +1,16 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #include <stdlib.h> +#include <unistd.h> #include <errno.h> +#include <fcntl.h> +#include "kern_constants.h" +#include "kern_util.h" #include "os.h" #include "user.h" -#include "kern_util.h" struct grantpt_info { int fd; @@ -26,36 +29,34 @@ static void grantpt_cb(void *arg) int get_pty(void) { struct grantpt_info info; - int fd; - - fd = os_open_file("/dev/ptmx", of_rdwr(OPENFLAGS()), 0); - if(fd < 0){ - printk("get_pty : Couldn't open /dev/ptmx - err = %d\n", -fd); - return(fd); + int fd, err; + + fd = open("/dev/ptmx", O_RDWR); + if (fd < 0) { + err = -errno; + printk(UM_KERN_ERR "get_pty : Couldn't open /dev/ptmx - " + "err = %d\n", errno); + return err; } info.fd = fd; initial_thread_cb(grantpt_cb, &info); - if(info.res < 0){ - printk("get_pty : Couldn't grant pty - errno = %d\n", - -info.err); - return(-1); + if (info.res < 0) { + err = -info.err; + printk(UM_KERN_ERR "get_pty : Couldn't grant pty - " + "errno = %d\n", -info.err); + goto out; } - if(unlockpt(fd) < 0){ - printk("get_pty : Couldn't unlock pty - errno = %d\n", errno); - return(-1); + + if (unlockpt(fd) < 0) { + err = -errno; + printk(UM_KERN_ERR "get_pty : Couldn't unlock pty - " + "errno = %d\n", errno); + goto out; } - return(fd); + return fd; +out: + close(fd); + return err; } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/os-Linux/tty_log.c b/arch/um/os-Linux/tty_log.c index d11a55baa6bd..cc648e6fd3a2 100644 --- a/arch/um/os-Linux/tty_log.c +++ b/arch/um/os-Linux/tty_log.c @@ -12,7 +12,6 @@ #include <sys/time.h> #include "init.h" #include "user.h" -#include "kern_util.h" #include "os.h" #define TTY_LOG_DIR "./" diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c index 3e058ce9ffb6..a6f31d476993 100644 --- a/arch/um/os-Linux/util.c +++ b/arch/um/os-Linux/util.c @@ -88,21 +88,6 @@ void setup_hostinfo(char *buf, int len) host.release, host.version, host.machine); } -int setjmp_wrapper(void (*proc)(void *, void *), ...) -{ - va_list args; - jmp_buf buf; - int n; - - n = UML_SETJMP(&buf); - if(n == 0){ - va_start(args, proc); - (*proc)(&buf, &args); - } - va_end(args); - return n; -} - void os_dump_core(void) { int pid; diff --git a/arch/um/sys-i386/bug.c b/arch/um/sys-i386/bug.c index a4360b5207db..8d4f273f1219 100644 --- a/arch/um/sys-i386/bug.c +++ b/arch/um/sys-i386/bug.c @@ -4,6 +4,7 @@ */ #include <linux/uaccess.h> +#include <asm/errno.h> /* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because * that's not relevant in skas mode. diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c index 806895d73bcc..a74442d13762 100644 --- a/arch/um/sys-i386/bugs.c +++ b/arch/um/sys-i386/bugs.c @@ -3,171 +3,47 @@ * Licensed under the GPL */ -#include <errno.h> #include <signal.h> -#include <string.h> #include "kern_constants.h" -#include "os.h" +#include "kern_util.h" +#include "longjmp.h" #include "task.h" #include "user.h" - -#define MAXTOKEN 64 +#include "sysdep/ptrace.h" /* Set during early boot */ int host_has_cmov = 1; -int host_has_xmm = 0; +static jmp_buf cmov_test_return; -static char token(int fd, char *buf, int len, char stop) +static void cmov_sigill_test_handler(int sig) { - int n; - char *ptr, *end, c; - - ptr = buf; - end = &buf[len]; - do { - n = os_read_file(fd, ptr, sizeof(*ptr)); - c = *ptr++; - if (n != sizeof(*ptr)) { - if (n == 0) - return 0; - printk(UM_KERN_ERR "Reading /proc/cpuinfo failed, " - "err = %d\n", -n); - if (n < 0) - return n; - else return -EIO; - } - } while ((c != '\n') && (c != stop) && (ptr < end)); - - if (ptr == end) { - printk(UM_KERN_ERR "Failed to find '%c' in /proc/cpuinfo\n", - stop); - return -1; - } - *(ptr - 1) = '\0'; - return c; -} - -static int find_cpuinfo_line(int fd, char *key, char *scratch, int len) -{ - int n; - char c; - - scratch[len - 1] = '\0'; - while (1) { - c = token(fd, scratch, len - 1, ':'); - if (c <= 0) - return 0; - else if (c != ':') { - printk(UM_KERN_ERR "Failed to find ':' in " - "/proc/cpuinfo\n"); - return 0; - } - - if (!strncmp(scratch, key, strlen(key))) - return 1; - - do { - n = os_read_file(fd, &c, sizeof(c)); - if (n != sizeof(c)) { - printk(UM_KERN_ERR "Failed to find newline in " - "/proc/cpuinfo, err = %d\n", -n); - return 0; - } - } while (c != '\n'); - } - return 0; + host_has_cmov = 0; + longjmp(cmov_test_return, 1); } -static int check_cpu_flag(char *feature, int *have_it) -{ - char buf[MAXTOKEN], c; - int fd, len = ARRAY_SIZE(buf); - - printk(UM_KERN_INFO "Checking for host processor %s support...", - feature); - fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0); - if (fd < 0) { - printk(UM_KERN_ERR "Couldn't open /proc/cpuinfo, err = %d\n", - -fd); - return 0; - } - - *have_it = 0; - if (!find_cpuinfo_line(fd, "flags", buf, ARRAY_SIZE(buf))) - goto out; - - c = token(fd, buf, len - 1, ' '); - if (c < 0) - goto out; - else if (c != ' ') { - printk(UM_KERN_ERR "Failed to find ' ' in /proc/cpuinfo\n"); - goto out; - } - - while (1) { - c = token(fd, buf, len - 1, ' '); - if (c < 0) - goto out; - else if (c == '\n') - break; - - if (!strcmp(buf, feature)) { - *have_it = 1; - goto out; - } - } - out: - if (*have_it == 0) - printk("No\n"); - else if (*have_it == 1) - printk("Yes\n"); - os_close_file(fd); - return 1; -} - -#if 0 /* - * This doesn't work in tt mode, plus it's causing compilation problems - * for some people. - */ -static void disable_lcall(void) +void arch_check_bugs(void) { - struct modify_ldt_ldt_s ldt; - int err; + struct sigaction old, new; - bzero(&ldt, sizeof(ldt)); - ldt.entry_number = 7; - ldt.base_addr = 0; - ldt.limit = 0; - err = modify_ldt(1, &ldt, sizeof(ldt)); - if (err) - printk(UM_KERN_ERR "Failed to disable lcall7 - errno = %d\n", - errno); -} -#endif + printk(UM_KERN_INFO "Checking for host processor cmov support..."); + new.sa_handler = cmov_sigill_test_handler; -void arch_init_thread(void) -{ -#if 0 - disable_lcall(); -#endif -} + /* Make sure that SIGILL is enabled after the handler longjmps back */ + new.sa_flags = SA_NODEFER; + sigemptyset(&new.sa_mask); + sigaction(SIGILL, &new, &old); -void arch_check_bugs(void) -{ - int have_it; + if (setjmp(cmov_test_return) == 0) { + unsigned long foo = 0; + __asm__ __volatile__("cmovz %0, %1" : "=r" (foo) : "0" (foo)); + printk(UM_KERN_CONT "Yes\n"); + } else + printk(UM_KERN_CONT "No\n"); - if (os_access("/proc/cpuinfo", OS_ACC_R_OK) < 0) { - printk(UM_KERN_ERR "/proc/cpuinfo not available - skipping CPU " - "capability checks\n"); - return; - } - if (check_cpu_flag("cmov", &have_it)) - host_has_cmov = have_it; - if (check_cpu_flag("xmm", &have_it)) - host_has_xmm = have_it; + sigaction(SIGILL, &old, &new); } -int arch_handle_signal(int sig, struct uml_pt_regs *regs) +void arch_examine_signal(int sig, struct uml_pt_regs *regs) { unsigned char tmp[2]; @@ -176,24 +52,25 @@ int arch_handle_signal(int sig, struct uml_pt_regs *regs) * SIGILL in init. */ if ((sig != SIGILL) || (TASK_PID(get_current()) != 1)) - return 0; + return; + + if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2)) { + printk(UM_KERN_ERR "SIGILL in init, could not read " + "instructions!\n"); + return; + } - if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2)) - panic("SIGILL in init, could not read instructions!\n"); if ((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40)) - return 0; + return; if (host_has_cmov == 0) - panic("SIGILL caused by cmov, which this processor doesn't " - "implement, boot a filesystem compiled for older " - "processors"); + printk(UM_KERN_ERR "SIGILL caused by cmov, which this " + "processor doesn't implement. Boot a filesystem " + "compiled for older processors"); else if (host_has_cmov == 1) - panic("SIGILL caused by cmov, which this processor claims to " - "implement"); - else if (host_has_cmov == -1) - panic("SIGILL caused by cmov, couldn't tell if this processor " - "implements it, boot a filesystem compiled for older " - "processors"); - else panic("Bad value for host_has_cmov (%d)", host_has_cmov); - return 0; + printk(UM_KERN_ERR "SIGILL caused by cmov, which this " + "processor claims to implement"); + else + printk(UM_KERN_ERR "Bad value for host_has_cmov (%d)", + host_has_cmov); } diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c index 67c0958eb984..a34263e6b08d 100644 --- a/arch/um/sys-i386/ldt.c +++ b/arch/um/sys-i386/ldt.c @@ -3,8 +3,9 @@ * Licensed under the GPL */ -#include "linux/mm.h" -#include "asm/unistd.h" +#include <linux/mm.h> +#include <linux/sched.h> +#include <asm/unistd.h> #include "os.h" #include "proc_mm.h" #include "skas.h" @@ -146,7 +147,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount) if (ptrace_ldt) return read_ldt_from_host(ptr, bytecount); - down(&ldt->semaphore); + mutex_lock(&ldt->lock); if (ldt->entry_count <= LDT_DIRECT_ENTRIES) { size = LDT_ENTRY_SIZE*LDT_DIRECT_ENTRIES; if (size > bytecount) @@ -170,7 +171,7 @@ static int read_ldt(void __user * ptr, unsigned long bytecount) ptr += size; } } - up(&ldt->semaphore); + mutex_unlock(&ldt->lock); if (bytecount == 0 || err == -EFAULT) goto out; @@ -228,7 +229,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int func) } if (!ptrace_ldt) - down(&ldt->semaphore); + mutex_lock(&ldt->lock); err = write_ldt_entry(mm_idp, func, &ldt_info, &addr, 1); if (err) @@ -288,7 +289,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int func) err = 0; out_unlock: - up(&ldt->semaphore); + mutex_unlock(&ldt->lock); out: return err; } @@ -395,7 +396,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm) if (!ptrace_ldt) - init_MUTEX(&new_mm->ldt.semaphore); + mutex_init(&new_mm->ldt.lock); if (!from_mm) { memset(&desc, 0, sizeof(desc)); @@ -455,7 +456,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm) * i.e., we have to use the stub for modify_ldt, which * can't handle the big read buffer of up to 64kB. */ - down(&from_mm->ldt.semaphore); + mutex_lock(&from_mm->ldt.lock); if (from_mm->ldt.entry_count <= LDT_DIRECT_ENTRIES) memcpy(new_mm->ldt.u.entries, from_mm->ldt.u.entries, sizeof(new_mm->ldt.u.entries)); @@ -474,7 +475,7 @@ long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm) } } new_mm->ldt.entry_count = from_mm->ldt.entry_count; - up(&from_mm->ldt.semaphore); + mutex_unlock(&from_mm->ldt.lock); } out: diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c index bd3da8a61f64..6b4499906a6c 100644 --- a/arch/um/sys-i386/ptrace.c +++ b/arch/um/sys-i386/ptrace.c @@ -8,11 +8,11 @@ #include "asm/uaccess.h" #include "skas.h" -extern int arch_switch_tls(struct task_struct *from, struct task_struct *to); +extern int arch_switch_tls(struct task_struct *to); -void arch_switch_to(struct task_struct *from, struct task_struct *to) +void arch_switch_to(struct task_struct *to) { - int err = arch_switch_tls(from, to); + int err = arch_switch_tls(to); if (!err) return; diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c index 5cf97bc229b9..0b10c3e74028 100644 --- a/arch/um/sys-i386/ptrace_user.c +++ b/arch/um/sys-i386/ptrace_user.c @@ -19,17 +19,3 @@ int ptrace_setregs(long pid, unsigned long *regs) return -errno; return 0; } - -int ptrace_getfpregs(long pid, unsigned long *regs) -{ - if (ptrace(PTRACE_GETFPREGS, pid, 0, regs) < 0) - return -errno; - return 0; -} - -int ptrace_setfpregs(long pid, unsigned long *regs) -{ - if (ptrace(PTRACE_SETFPREGS, pid, 0, regs) < 0) - return -errno; - return 0; -} diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c index 19053d46cb60..fd0c25ad6af3 100644 --- a/arch/um/sys-i386/signal.c +++ b/arch/um/sys-i386/signal.c @@ -168,12 +168,13 @@ static int copy_sc_from_user(struct pt_regs *regs, struct sigcontext __user *from) { struct sigcontext sc; - int err; + int err, pid; err = copy_from_user(&sc, from, sizeof(sc)); if (err) return err; + pid = userspace_pid[current_thread_info()->cpu]; copy_sc(®s->regs, &sc); if (have_fpx_regs) { struct user_fxsr_struct fpx; @@ -187,8 +188,7 @@ static int copy_sc_from_user(struct pt_regs *regs, if (err) return 1; - err = restore_fpx_registers(userspace_pid[current_thread->cpu], - (unsigned long *) &fpx); + err = restore_fpx_registers(pid, (unsigned long *) &fpx); if (err < 0) { printk(KERN_ERR "copy_sc_from_user - " "restore_fpx_registers failed, errno = %d\n", @@ -204,8 +204,7 @@ static int copy_sc_from_user(struct pt_regs *regs, if (err) return 1; - err = restore_fp_registers(userspace_pid[current_thread->cpu], - (unsigned long *) &fp); + err = restore_fp_registers(pid, (unsigned long *) &fp); if (err < 0) { printk(KERN_ERR "copy_sc_from_user - " "restore_fp_registers failed, errno = %d\n", @@ -223,7 +222,7 @@ static int copy_sc_to_user(struct sigcontext __user *to, { struct sigcontext sc; struct faultinfo * fi = ¤t->thread.arch.faultinfo; - int err; + int err, pid; sc.gs = REGS_GS(regs->regs.gp); sc.fs = REGS_FS(regs->regs.gp); @@ -249,11 +248,11 @@ static int copy_sc_to_user(struct sigcontext __user *to, to_fp = (to_fp ? to_fp : (struct _fpstate __user *) (to + 1)); sc.fpstate = to_fp; + pid = userspace_pid[current_thread_info()->cpu]; if (have_fpx_regs) { struct user_fxsr_struct fpx; - err = save_fpx_registers(userspace_pid[current_thread->cpu], - (unsigned long *) &fpx); + err = save_fpx_registers(pid, (unsigned long *) &fpx); if (err < 0){ printk(KERN_ERR "copy_sc_to_user - save_fpx_registers " "failed, errno = %d\n", err); @@ -276,8 +275,7 @@ static int copy_sc_to_user(struct sigcontext __user *to, else { struct user_i387_struct fp; - err = save_fp_registers(userspace_pid[current_thread->cpu], - (unsigned long *) &fp); + err = save_fp_registers(pid, (unsigned long *) &fp); if (copy_to_user(to_fp, &fp, sizeof(struct user_i387_struct))) return 1; } diff --git a/arch/um/sys-i386/stub.S b/arch/um/sys-i386/stub.S index e730772c401b..7699e89f660f 100644 --- a/arch/um/sys-i386/stub.S +++ b/arch/um/sys-i386/stub.S @@ -7,7 +7,7 @@ .globl batch_syscall_stub batch_syscall_stub: /* load pointer to first operation */ - mov $(ASM_STUB_DATA+8), %esp + mov $(STUB_DATA+8), %esp again: /* load length of additional data */ @@ -15,12 +15,12 @@ again: /* if(length == 0) : end of list */ /* write possible 0 to header */ - mov %eax, ASM_STUB_DATA+4 + mov %eax, STUB_DATA+4 cmpl $0, %eax jz done /* save current pointer */ - mov %esp, ASM_STUB_DATA+4 + mov %esp, STUB_DATA+4 /* skip additional data */ add %eax, %esp @@ -46,7 +46,7 @@ again: done: /* save return value */ - mov %eax, ASM_STUB_DATA + mov %eax, STUB_DATA /* stop */ int3 diff --git a/arch/um/sys-i386/stub_segv.c b/arch/um/sys-i386/stub_segv.c index b3999cb76bfd..28ccf737a79f 100644 --- a/arch/um/sys-i386/stub_segv.c +++ b/arch/um/sys-i386/stub_segv.c @@ -1,32 +1,17 @@ /* - * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com) + * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include <signal.h> -#include <sys/select.h> /* The only way I can see to get sigset_t */ -#include <asm/unistd.h> -#include "as-layout.h" -#include "uml-config.h" #include "sysdep/stub.h" #include "sysdep/sigcontext.h" -#include "sysdep/faultinfo.h" void __attribute__ ((__section__ (".__syscall_stub"))) stub_segv_handler(int sig) { struct sigcontext *sc = (struct sigcontext *) (&sig + 1); - int pid; GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), sc); - pid = stub_syscall0(__NR_getpid); - stub_syscall2(__NR_kill, pid, SIGUSR1); - - /* Load pointer to sigcontext into esp, since we need to leave - * the stack in its original form when we do the sigreturn here, by - * hand. - */ - __asm__ __volatile__("mov %0,%%esp ; movl %1, %%eax ; " - "int $0x80" : : "a" (sc), "g" (__NR_sigreturn)); + trap_myself(); } diff --git a/arch/um/sys-i386/sys_call_table.S b/arch/um/sys-i386/sys_call_table.S index 12d4148dba39..00e5f5203eea 100644 --- a/arch/um/sys-i386/sys_call_table.S +++ b/arch/um/sys-i386/sys_call_table.S @@ -9,4 +9,9 @@ #define old_mmap old_mmap_i386 +.section .rodata,"a" + #include "../../x86/kernel/syscall_table_32.S" + +ENTRY(syscall_table_size) +.long .-sys_call_table diff --git a/arch/um/sys-i386/tls.c b/arch/um/sys-i386/tls.c index fcaff86b000c..c6c7131e563b 100644 --- a/arch/um/sys-i386/tls.c +++ b/arch/um/sys-i386/tls.c @@ -26,6 +26,11 @@ int do_set_thread_area(struct user_desc *info) cpu = get_cpu(); ret = os_set_thread_area(info, userspace_pid[cpu]); put_cpu(); + + if (ret) + printk(KERN_ERR "PTRACE_SET_THREAD_AREA failed, err = %d, " + "index = %d\n", ret, info->entry_number); + return ret; } @@ -37,6 +42,11 @@ int do_get_thread_area(struct user_desc *info) cpu = get_cpu(); ret = os_get_thread_area(info, userspace_pid[cpu]); put_cpu(); + + if (ret) + printk(KERN_ERR "PTRACE_GET_THREAD_AREA failed, err = %d, " + "index = %d\n", ret, info->entry_number); + return ret; } @@ -172,7 +182,7 @@ void clear_flushed_tls(struct task_struct *task) * SKAS patch. */ -int arch_switch_tls(struct task_struct *from, struct task_struct *to) +int arch_switch_tls(struct task_struct *to) { if (!host_supports_tls) return 0; @@ -225,7 +235,8 @@ out: } /* XXX: use do_get_thread_area to read the host value? I'm not at all sure! */ -static int get_tls_entry(struct task_struct* task, struct user_desc *info, int idx) +static int get_tls_entry(struct task_struct *task, struct user_desc *info, + int idx) { struct thread_struct *t = &task->thread; @@ -263,7 +274,7 @@ clear: goto out; } -asmlinkage int sys_set_thread_area(struct user_desc __user *user_desc) +int sys_set_thread_area(struct user_desc __user *user_desc) { struct user_desc info; int idx, ret; @@ -298,7 +309,7 @@ asmlinkage int sys_set_thread_area(struct user_desc __user *user_desc) * i386. However the only possible error are caused by bugs. */ int ptrace_set_thread_area(struct task_struct *child, int idx, - struct user_desc __user *user_desc) + struct user_desc __user *user_desc) { struct user_desc info; @@ -311,7 +322,7 @@ int ptrace_set_thread_area(struct task_struct *child, int idx, return set_tls_entry(child, &info, idx, 0); } -asmlinkage int sys_get_thread_area(struct user_desc __user *user_desc) +int sys_get_thread_area(struct user_desc __user *user_desc) { struct user_desc info; int idx, ret; @@ -355,10 +366,9 @@ out: return ret; } - /* - * XXX: This part is probably common to i386 and x86-64. Don't create a common - * file for now, do that when implementing x86-64 support. + * This code is really i386-only, but it detects and logs x86_64 GDT indexes + * if a 32-bit UML is running on a 64-bit host. */ static int __init __setup_host_supports_tls(void) { @@ -367,13 +377,16 @@ static int __init __setup_host_supports_tls(void) printk(KERN_INFO "Host TLS support detected\n"); printk(KERN_INFO "Detected host type: "); switch (host_gdt_entry_tls_min) { - case GDT_ENTRY_TLS_MIN_I386: - printk("i386\n"); - break; - case GDT_ENTRY_TLS_MIN_X86_64: - printk("x86_64\n"); - break; + case GDT_ENTRY_TLS_MIN_I386: + printk(KERN_CONT "i386"); + break; + case GDT_ENTRY_TLS_MIN_X86_64: + printk(KERN_CONT "x86_64"); + break; } + printk(KERN_CONT " (GDT indexes %d to %d)\n", + host_gdt_entry_tls_min, + host_gdt_entry_tls_min + GDT_ENTRY_TLS_ENTRIES); } else printk(KERN_ERR " Host TLS support NOT detected! " "TLS support inside UML will not work\n"); diff --git a/arch/um/sys-ppc/Makefile b/arch/um/sys-ppc/Makefile index a9814a7ae60e..08901526e893 100644 --- a/arch/um/sys-ppc/Makefile +++ b/arch/um/sys-ppc/Makefile @@ -6,7 +6,7 @@ OBJ = built-in.o OBJS = ptrace.o sigcontext.o semaphore.o checksum.o miscthings.o misc.o \ ptrace_user.o sysrq.o -EXTRA_AFLAGS := -DCONFIG_PPC32 -I. -I$(TOPDIR)/arch/ppc/kernel +EXTRA_AFLAGS := -DCONFIG_PPC32 -I. -I$(srctree)/arch/ppc/kernel all: $(OBJ) @@ -22,25 +22,25 @@ sigcontext.o: sigcontext.c semaphore.c: rm -f $@ - ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@ + ln -s $(srctree)/arch/ppc/kernel/$@ $@ checksum.S: rm -f $@ - ln -s $(TOPDIR)/arch/ppc/lib/$@ $@ + ln -s $(srctree)/arch/ppc/lib/$@ $@ mk_defs.c: rm -f $@ - ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@ + ln -s $(srctree)/arch/ppc/kernel/$@ $@ ppc_defs.head: rm -f $@ - ln -s $(TOPDIR)/arch/ppc/kernel/$@ $@ + ln -s $(srctree)/arch/ppc/kernel/$@ $@ ppc_defs.h: mk_defs.c ppc_defs.head \ - $(TOPDIR)/include/asm-ppc/mmu.h \ - $(TOPDIR)/include/asm-ppc/processor.h \ - $(TOPDIR)/include/asm-ppc/pgtable.h \ - $(TOPDIR)/include/asm-ppc/ptrace.h + $(srctree)/include/asm-ppc/mmu.h \ + $(srctree)/include/asm-ppc/processor.h \ + $(srctree)/include/asm-ppc/pgtable.h \ + $(srctree)/include/asm-ppc/ptrace.h # $(CC) $(CFLAGS) -S mk_defs.c cp ppc_defs.head ppc_defs.h # for bk, this way we can write to the file even if it's not checked out @@ -56,13 +56,13 @@ ppc_defs.h: mk_defs.c ppc_defs.head \ checksum.o: checksum.S rm -f asm - ln -s $(TOPDIR)/include/asm-ppc asm + ln -s $(srctree)/include/asm-ppc asm $(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o rm -f asm misc.o: misc.S ppc_defs.h rm -f asm - ln -s $(TOPDIR)/include/asm-ppc asm + ln -s $(srctree)/include/asm-ppc asm $(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o rm -f asm diff --git a/arch/um/sys-x86_64/bug.c b/arch/um/sys-x86_64/bug.c index a4360b5207db..e8034e363d83 100644 --- a/arch/um/sys-x86_64/bug.c +++ b/arch/um/sys-x86_64/bug.c @@ -5,7 +5,8 @@ #include <linux/uaccess.h> -/* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because +/* + * Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because * that's not relevant in skas mode. */ diff --git a/arch/um/sys-x86_64/bugs.c b/arch/um/sys-x86_64/bugs.c index 506b6765bbcb..44e02ba2a265 100644 --- a/arch/um/sys-x86_64/bugs.c +++ b/arch/um/sys-x86_64/bugs.c @@ -6,15 +6,10 @@ #include "sysdep/ptrace.h" -void arch_init_thread(void) -{ -} - void arch_check_bugs(void) { } -int arch_handle_signal(int sig, struct uml_pt_regs *regs) +void arch_examine_signal(int sig, struct uml_pt_regs *regs) { - return 0; } diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c index b7631b0e9ddc..f3458d7d1c5a 100644 --- a/arch/um/sys-x86_64/ptrace.c +++ b/arch/um/sys-x86_64/ptrace.c @@ -5,13 +5,12 @@ * Licensed under the GPL */ -#define __FRAME_OFFSETS -#include <asm/ptrace.h> +#include <linux/mm.h> #include <linux/sched.h> #include <linux/errno.h> -#include <linux/mm.h> +#define __FRAME_OFFSETS +#include <asm/ptrace.h> #include <asm/uaccess.h> -#include <asm/elf.h> /* * determines which flags the user has access to. @@ -24,12 +23,14 @@ int putreg(struct task_struct *child, int regno, unsigned long value) unsigned long tmp; #ifdef TIF_IA32 - /* Some code in the 64bit emulation may not be 64bit clean. - Don't take any chances. */ + /* + * Some code in the 64bit emulation may not be 64bit clean. + * Don't take any chances. + */ if (test_tsk_thread_flag(child, TIF_IA32)) value &= 0xffffffff; #endif - switch (regno){ + switch (regno) { case FS: case GS: case DS: @@ -66,7 +67,7 @@ int poke_user(struct task_struct *child, long addr, long data) if (addr < MAX_REG_OFFSET) return putreg(child, addr, data); else if ((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))){ + (addr <= offsetof(struct user, u_debugreg[7]))) { addr -= offsetof(struct user, u_debugreg[0]); addr = addr >> 2; if ((addr == 4) || (addr == 5)) @@ -108,11 +109,10 @@ int peek_user(struct task_struct *child, long addr, long data) return -EIO; tmp = 0; /* Default return condition */ - if (addr < MAX_REG_OFFSET){ + if (addr < MAX_REG_OFFSET) tmp = getreg(child, addr); - } else if ((addr >= offsetof(struct user, u_debugreg[0])) && - (addr <= offsetof(struct user, u_debugreg[7]))){ + (addr <= offsetof(struct user, u_debugreg[7]))) { addr -= offsetof(struct user, u_debugreg[0]); addr = addr >> 2; tmp = child->thread.arch.debugregs[addr]; @@ -127,8 +127,9 @@ int is_syscall(unsigned long addr) int n; n = copy_from_user(&instr, (void __user *) addr, sizeof(instr)); - if (n){ - /* access_process_vm() grants access to vsyscall and stub, + if (n) { + /* + * access_process_vm() grants access to vsyscall and stub, * while copy_from_user doesn't. Maybe access_process_vm is * slow, but that doesn't matter, since it will be called only * in case of singlestepping, if copy_from_user failed. @@ -155,7 +156,7 @@ int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *child) return err; n = copy_to_user(buf, fpregs, sizeof(fpregs)); - if(n > 0) + if (n > 0) return -EFAULT; return n; diff --git a/arch/um/sys-x86_64/ptrace_user.c b/arch/um/sys-x86_64/ptrace_user.c index b5f9c33e311e..c57a496d3f5b 100644 --- a/arch/um/sys-x86_64/ptrace_user.c +++ b/arch/um/sys-x86_64/ptrace_user.c @@ -4,55 +4,19 @@ * Licensed under the GPL */ -#include <stddef.h> #include <errno.h> #include "ptrace_user.h" -#include "user.h" -#include "kern_constants.h" int ptrace_getregs(long pid, unsigned long *regs_out) { - if(ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0) - return(-errno); - return(0); -} - -int ptrace_setregs(long pid, unsigned long *regs) -{ - if(ptrace(PTRACE_SETREGS, pid, 0, regs) < 0) - return(-errno); + if (ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0) + return -errno; return(0); } -int ptrace_setfpregs(long pid, unsigned long *regs) +int ptrace_setregs(long pid, unsigned long *regs_out) { - if (ptrace(PTRACE_SETFPREGS, pid, 0, regs) < 0) + if (ptrace(PTRACE_SETREGS, pid, 0, regs_out) < 0) return -errno; - return 0; -} - -void ptrace_pokeuser(unsigned long addr, unsigned long data) -{ - panic("ptrace_pokeuser"); -} - -#define DS 184 -#define ES 192 -#define __USER_DS 0x2b - -void arch_enter_kernel(void *task, int pid) -{ -} - -void arch_leave_kernel(void *task, int pid) -{ -#ifdef UM_USER_CS - if(ptrace(PTRACE_POKEUSR, pid, CS, UM_USER_CS) < 0) - printk("POKEUSR CS failed"); -#endif - - if(ptrace(PTRACE_POKEUSR, pid, DS, __USER_DS) < 0) - printk("POKEUSR DS failed"); - if(ptrace(PTRACE_POKEUSR, pid, ES, __USER_DS) < 0) - printk("POKEUSR ES failed"); + return(0); } diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index 7457436b433a..1a899a7ed7a6 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -81,7 +81,7 @@ static int copy_sc_from_user(struct pt_regs *regs, if (err) return 1; - err = restore_fp_registers(userspace_pid[current_thread->cpu], + err = restore_fp_registers(userspace_pid[current_thread_info()->cpu], (unsigned long *) &fp); if (err < 0) { printk(KERN_ERR "copy_sc_from_user - " @@ -112,7 +112,7 @@ static int copy_sc_to_user(struct sigcontext __user *to, err |= PUTREG(regs, RSI, to, si); err |= PUTREG(regs, RBP, to, bp); /* - * Must use orignal RSP, which is passed in, rather than what's in + * Must use original RSP, which is passed in, rather than what's in * the pt_regs, because that's already been updated to point at the * signal frame. */ @@ -143,7 +143,7 @@ static int copy_sc_to_user(struct sigcontext __user *to, if (err) return 1; - err = save_fp_registers(userspace_pid[current_thread->cpu], + err = save_fp_registers(userspace_pid[current_thread_info()->cpu], (unsigned long *) &fp); if (err < 0) { printk(KERN_ERR "copy_sc_from_user - restore_fp_registers " diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S index 4afe204a6af7..568768763155 100644 --- a/arch/um/sys-x86_64/stub.S +++ b/arch/um/sys-x86_64/stub.S @@ -8,18 +8,18 @@ syscall_stub: /* We don't have 64-bit constants, so this constructs the address * we need. */ - movq $(ASM_STUB_DATA >> 32), %rbx + movq $(STUB_DATA >> 32), %rbx salq $32, %rbx - movq $(ASM_STUB_DATA & 0xffffffff), %rcx + movq $(STUB_DATA & 0xffffffff), %rcx or %rcx, %rbx movq %rax, (%rbx) int3 .globl batch_syscall_stub batch_syscall_stub: - mov $(ASM_STUB_DATA >> 32), %rbx + mov $(STUB_DATA >> 32), %rbx sal $32, %rbx - mov $(ASM_STUB_DATA & 0xffffffff), %rax + mov $(STUB_DATA & 0xffffffff), %rax or %rax, %rbx /* load pointer to first operation */ mov %rbx, %rsp diff --git a/arch/um/sys-x86_64/stub_segv.c b/arch/um/sys-x86_64/stub_segv.c index 3afb590f0072..ced051afc705 100644 --- a/arch/um/sys-x86_64/stub_segv.c +++ b/arch/um/sys-x86_64/stub_segv.c @@ -1,51 +1,22 @@ /* - * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com) + * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include <stddef.h> #include <signal.h> -#include <asm/unistd.h> #include "as-layout.h" -#include "uml-config.h" -#include "sysdep/sigcontext.h" -#include "sysdep/faultinfo.h" #include "sysdep/stub.h" - -/* Copied from sys-x86_64/signal.c - Can't find an equivalent definition - * in the libc headers anywhere. - */ -struct rt_sigframe -{ - char *pretcode; - struct ucontext uc; - struct siginfo info; -}; - -/* Copied here from <linux/kernel.h> - we're userspace. */ -#define container_of(ptr, type, member) ({ \ - const typeof( ((type *)0)->member ) *__mptr = (ptr); \ - (type *)( (char *)__mptr - offsetof(type,member) );}) +#include "sysdep/faultinfo.h" +#include "sysdep/sigcontext.h" void __attribute__ ((__section__ (".__syscall_stub"))) stub_segv_handler(int sig) { struct ucontext *uc; - int pid; __asm__ __volatile__("movq %%rdx, %0" : "=g" (uc) :); GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), &uc->uc_mcontext); - - pid = stub_syscall0(__NR_getpid); - stub_syscall2(__NR_kill, pid, SIGUSR1); - - /* sys_sigreturn expects that the stack pointer will be 8 bytes into - * the signal frame. So, we use the ucontext pointer, which we know - * already, to get the signal frame pointer, and add 8 to that. - */ - __asm__ __volatile__("movq %0, %%rsp; movq %1, %%rax ; syscall": : - "g" ((unsigned long) - container_of(uc, struct rt_sigframe, uc) + 8), - "g" (__NR_rt_sigreturn)); + trap_myself(); } + diff --git a/arch/um/sys-x86_64/syscall_table.c b/arch/um/sys-x86_64/syscall_table.c index 71b2ae4ad5de..c128eb897008 100644 --- a/arch/um/sys-x86_64/syscall_table.c +++ b/arch/um/sys-x86_64/syscall_table.c @@ -1,5 +1,7 @@ -/* System call table for UML/x86-64, copied from arch/x86_64/kernel/syscall.c - * with some changes for UML. */ +/* + * System call table for UML/x86-64, copied from arch/x86_64/kernel/syscall.c + * with some changes for UML. + */ #include <linux/linkage.h> #include <linux/sys.h> @@ -8,22 +10,26 @@ #define __NO_STUBS -/* Below you can see, in terms of #define's, the differences between the x86-64 - * and the UML syscall table. */ +/* + * Below you can see, in terms of #define's, the differences between the x86-64 + * and the UML syscall table. + */ /* Not going to be implemented by UML, since we have no hardware. */ #define stub_iopl sys_ni_syscall #define sys_ioperm sys_ni_syscall -/* The UML TLS problem. Note that x86_64 does not implement this, so the below - * is needed only for the ia32 compatibility. */ -/*#define sys_set_thread_area sys_ni_syscall -#define sys_get_thread_area sys_ni_syscall*/ +/* + * The UML TLS problem. Note that x86_64 does not implement this, so the below + * is needed only for the ia32 compatibility. + */ /* On UML we call it this way ("old" means it's not mmap2) */ #define sys_mmap old_mmap -/* On x86-64 sys_uname is actually sys_newuname plus a compatibility trick. - * See arch/x86_64/kernel/sys_x86_64.c */ +/* + * On x86-64 sys_uname is actually sys_newuname plus a compatibility trick. + * See arch/x86_64/kernel/sys_x86_64.c + */ #define sys_uname sys_uname64 #define stub_clone sys_clone @@ -46,8 +52,19 @@ typedef void (*sys_call_ptr_t)(void); extern void sys_ni_syscall(void); -sys_call_ptr_t sys_call_table[UM_NR_syscall_max+1] __cacheline_aligned = { - /* Smells like a like a compiler bug -- it doesn't work when the & below is removed. */ - [0 ... UM_NR_syscall_max] = &sys_ni_syscall, +/* + * We used to have a trick here which made sure that holes in the + * x86_64 table were filled in with sys_ni_syscall, but a comment in + * unistd_64.h says that holes aren't allowed, so the trick was + * removed. + * The trick looked like this + * [0 ... UM_NR_syscall_max] = &sys_ni_syscall + * before including unistd_64.h - the later initializations overwrote + * the sys_ni_syscall filler. + */ + +sys_call_ptr_t sys_call_table[] __cacheline_aligned = { #include <asm-x86/unistd_64.h> }; + +int syscall_table_size = sizeof(sys_call_table); diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index 86f6b18410ee..f1199fd34d38 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -48,7 +48,9 @@ long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr) switch (code) { case ARCH_SET_FS: case ARCH_SET_GS: - restore_registers(pid, ¤t->thread.regs.regs); + ret = restore_registers(pid, ¤t->thread.regs.regs); + if (ret) + return ret; break; case ARCH_GET_FS: case ARCH_GET_GS: @@ -70,10 +72,10 @@ long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr) switch (code) { case ARCH_SET_FS: current->thread.arch.fs = (unsigned long) ptr; - save_registers(pid, ¤t->thread.regs.regs); + ret = save_registers(pid, ¤t->thread.regs.regs); break; case ARCH_SET_GS: - save_registers(pid, ¤t->thread.regs.regs); + ret = save_registers(pid, ¤t->thread.regs.regs); break; case ARCH_GET_FS: ret = put_user(tmp, addr); @@ -105,7 +107,7 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp, return ret; } -void arch_switch_to(struct task_struct *from, struct task_struct *to) +void arch_switch_to(struct task_struct *to) { if ((to->thread.arch.fs == 0) || (to->mm == NULL)) return; diff --git a/arch/um/sys-x86_64/sysrq.c b/arch/um/sys-x86_64/sysrq.c index 765444031819..f4f82beb3508 100644 --- a/arch/um/sys-x86_64/sysrq.c +++ b/arch/um/sys-x86_64/sysrq.c @@ -4,32 +4,33 @@ * Licensed under the GPL */ -#include "linux/kernel.h" -#include "linux/utsname.h" -#include "linux/module.h" -#include "asm/current.h" -#include "asm/ptrace.h" +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/utsname.h> +#include <asm/current.h> +#include <asm/ptrace.h> #include "sysrq.h" -void __show_regs(struct pt_regs * regs) +void __show_regs(struct pt_regs *regs) { printk("\n"); print_modules(); - printk("Pid: %d, comm: %.20s %s %s\n", task_pid_nr(current), + printk(KERN_INFO "Pid: %d, comm: %.20s %s %s\n", task_pid_nr(current), current->comm, print_tainted(), init_utsname()->release); - printk("RIP: %04lx:[<%016lx>] ", PT_REGS_CS(regs) & 0xffff, + printk(KERN_INFO "RIP: %04lx:[<%016lx>]\n", PT_REGS_CS(regs) & 0xffff, PT_REGS_RIP(regs)); - printk("\nRSP: %016lx EFLAGS: %08lx\n", PT_REGS_RSP(regs), + printk(KERN_INFO "RSP: %016lx EFLAGS: %08lx\n", PT_REGS_RSP(regs), PT_REGS_EFLAGS(regs)); - printk("RAX: %016lx RBX: %016lx RCX: %016lx\n", + printk(KERN_INFO "RAX: %016lx RBX: %016lx RCX: %016lx\n", PT_REGS_RAX(regs), PT_REGS_RBX(regs), PT_REGS_RCX(regs)); - printk("RDX: %016lx RSI: %016lx RDI: %016lx\n", + printk(KERN_INFO "RDX: %016lx RSI: %016lx RDI: %016lx\n", PT_REGS_RDX(regs), PT_REGS_RSI(regs), PT_REGS_RDI(regs)); - printk("RBP: %016lx R08: %016lx R09: %016lx\n", + printk(KERN_INFO "RBP: %016lx R08: %016lx R09: %016lx\n", PT_REGS_RBP(regs), PT_REGS_R8(regs), PT_REGS_R9(regs)); - printk("R10: %016lx R11: %016lx R12: %016lx\n", + printk(KERN_INFO "R10: %016lx R11: %016lx R12: %016lx\n", PT_REGS_R10(regs), PT_REGS_R11(regs), PT_REGS_R12(regs)); - printk("R13: %016lx R14: %016lx R15: %016lx\n", + printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n", PT_REGS_R13(regs), PT_REGS_R14(regs), PT_REGS_R15(regs)); } diff --git a/arch/um/sys-x86_64/um_module.c b/arch/um/sys-x86_64/um_module.c index 8b8eff1bd977..3dead392a415 100644 --- a/arch/um/sys-x86_64/um_module.c +++ b/arch/um/sys-x86_64/um_module.c @@ -1,7 +1,7 @@ #include <linux/vmalloc.h> #include <linux/moduleloader.h> -/*Copied from i386 arch/i386/kernel/module.c */ +/* Copied from i386 arch/i386/kernel/module.c */ void *module_alloc(unsigned long size) { if (size == 0) @@ -13,7 +13,9 @@ void *module_alloc(unsigned long size) void module_free(struct module *mod, void *module_region) { vfree(module_region); - /* FIXME: If module_region == mod->init_region, trim exception - table entries. */ + /* + * FIXME: If module_region == mod->init_region, trim exception + * table entries. + */ } diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig index b6a50b8b38de..ace479ab273f 100644 --- a/arch/v850/Kconfig +++ b/arch/v850/Kconfig @@ -331,8 +331,6 @@ source "sound/Kconfig" source "drivers/usb/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/v850/Kconfig.debug" source "security/Kconfig" diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 65b449134cf7..434821187cfc 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -18,6 +18,8 @@ config X86_64 ### Arch settings config X86 def_bool y + select HAVE_OPROFILE + select HAVE_KPROBES config GENERIC_LOCKBREAK def_bool n @@ -44,6 +46,9 @@ config LOCKDEP_SUPPORT config STACKTRACE_SUPPORT def_bool y +config HAVE_LATENCYTOP_SUPPORT + def_bool y + config SEMAPHORE_SLEEPERS def_bool y @@ -103,12 +108,16 @@ config GENERIC_TIME_VSYSCALL config HAVE_SETUP_PER_CPU_AREA def_bool X86_64 -config ARCH_SUPPORTS_OPROFILE - bool - default y - select HAVE_KVM +config ARCH_HIBERNATION_POSSIBLE + def_bool y + depends on !SMP || !X86_VOYAGER + +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on !X86_VOYAGER + config ZONE_DMA32 bool default X86_64 @@ -193,8 +202,7 @@ config SMP Y to "Enhanced Real Time Clock Support", below. The "Advanced Power Management" code will be disabled if you say Y here. - See also the <file:Documentation/smp.txt>, - <file:Documentation/i386/IO-APIC.txt>, + See also <file:Documentation/i386/IO-APIC.txt>, <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at <http://www.tldp.org/docs.html#howto>. @@ -298,6 +306,7 @@ config X86_RDC321X select M486 select X86_REBOOTFIXUPS select GENERIC_GPIO + select LEDS_CLASS select LEDS_GPIO help This option is needed for RDC R-321x system-on-chip, also known @@ -456,6 +465,9 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT Calgary anyway, pass 'iommu=calgary' on the kernel command line. If unsure, say Y. +config IOMMU_HELPER + def_bool (CALGARY_IOMMU || GART_IOMMU) + # need this always selected by IOMMU for the VIA workaround config SWIOTLB bool @@ -1366,11 +1378,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - choice prompt "PCI access mode" depends on X86_32 && PCI && !X86_VISWS @@ -1591,8 +1598,6 @@ source "drivers/firmware/Kconfig" source "fs/Kconfig" -source "kernel/Kconfig.instrumentation" - source "arch/x86/Kconfig.debug" source "security/Kconfig" diff --git a/arch/x86/Makefile b/arch/x86/Makefile index da8f4129780b..364865b1b08d 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -92,7 +92,6 @@ KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) LDFLAGS := -m elf_$(UTS_MACHINE) -OBJCOPYFLAGS := -O binary -R .note -R .comment -S # Speed up the build KBUILD_CFLAGS += -pipe @@ -143,7 +142,7 @@ mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/ # RDC R-321x subarch support mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x -mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default +mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/ core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/ # default subarch .h files diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 349b81a39c40..f88458e83ef0 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -26,7 +26,7 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA #RAMDISK := -DRAMDISK=512 targets := vmlinux.bin setup.bin setup.elf zImage bzImage -subdir- := compressed +subdir- := compressed setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o setup-y += header.o main.o mca.o memory.o pm.o pmjump.o @@ -43,9 +43,17 @@ setup-y += video-vesa.o setup-y += video-bios.o targets += $(setup-y) -hostprogs-y := tools/build +hostprogs-y := mkcpustr tools/build -HOSTCFLAGS_build.o := $(LINUXINCLUDE) +HOST_EXTRACFLAGS += $(LINUXINCLUDE) + +$(obj)/cpu.o: $(obj)/cpustr.h + +quiet_cmd_cpustr = CPUSTR $@ + cmd_cpustr = $(obj)/mkcpustr > $@ +targets += cpustr.h +$(obj)/cpustr.h: $(obj)/mkcpustr FORCE + $(call if_changed,cpustr) # --------------------------------------------------------------------------- @@ -80,6 +88,7 @@ $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \ $(call if_changed,image) @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' +OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) @@ -90,7 +99,6 @@ $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld) OBJCOPYFLAGS_setup.bin := -O binary - $(obj)/setup.bin: $(obj)/setup.elf FORCE $(call if_changed,objcopy) @@ -98,7 +106,7 @@ $(obj)/compressed/vmlinux: FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel -FDARGS = +FDARGS = # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel FDINITRD = diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index fe24ceabd909..d2b9f3bb87c0 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -22,6 +22,7 @@ $(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $ $(call if_changed,ld) @: +OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 1ccb38a7f0d2..e8657b98c902 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -80,8 +80,8 @@ startup_32: #ifdef CONFIG_RELOCATABLE movl %ebp, %ebx - addl $(LARGE_PAGE_SIZE -1), %ebx - andl $LARGE_PAGE_MASK, %ebx + addl $(PMD_PAGE_SIZE -1), %ebx + andl $PMD_PAGE_MASK, %ebx #else movl $CONFIG_PHYSICAL_START, %ebx #endif @@ -220,8 +220,8 @@ ENTRY(startup_64) /* Start with the delta to where the kernel will run at. */ #ifdef CONFIG_RELOCATABLE leaq startup_32(%rip) /* - $startup_32 */, %rbp - addq $(LARGE_PAGE_SIZE - 1), %rbp - andq $LARGE_PAGE_MASK, %rbp + addq $(PMD_PAGE_SIZE - 1), %rbp + andq $PMD_PAGE_MASK, %rbp movq %rbp, %rbx #else movq $CONFIG_PHYSICAL_START, %rbp diff --git a/arch/x86/boot/compressed/vmlinux_64.lds b/arch/x86/boot/compressed/vmlinux_64.lds index f6e5b445f457..7e5c7209f6cc 100644 --- a/arch/x86/boot/compressed/vmlinux_64.lds +++ b/arch/x86/boot/compressed/vmlinux_64.lds @@ -3,7 +3,7 @@ OUTPUT_ARCH(i386:x86-64) ENTRY(startup_64) SECTIONS { - /* Be careful parts of head_64.S assume startup_64 is at + /* Be careful parts of head_64.S assume startup_32 is at * address 0. */ . = 0; diff --git a/arch/x86/boot/cpu.c b/arch/x86/boot/cpu.c index 2a5c32da5852..00e19edd852c 100644 --- a/arch/x86/boot/cpu.c +++ b/arch/x86/boot/cpu.c @@ -1,7 +1,7 @@ /* -*- linux-c -*- ------------------------------------------------------- * * * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved + * Copyright 2007-2008 rPath, Inc. - All Rights Reserved * * This file is part of the Linux kernel, and is made available under * the terms of the GNU General Public License version 2. @@ -9,7 +9,7 @@ * ----------------------------------------------------------------------- */ /* - * arch/i386/boot/cpu.c + * arch/x86/boot/cpu.c * * Check for obligatory CPU features and abort if the features are not * present. @@ -19,6 +19,8 @@ #include "bitops.h" #include <asm/cpufeature.h> +#include "cpustr.h" + static char *cpu_name(int level) { static char buf[6]; @@ -35,6 +37,7 @@ int validate_cpu(void) { u32 *err_flags; int cpu_level, req_level; + const unsigned char *msg_strs; check_cpu(&cpu_level, &req_level, &err_flags); @@ -51,13 +54,26 @@ int validate_cpu(void) puts("This kernel requires the following features " "not present on the CPU:\n"); + msg_strs = (const unsigned char *)x86_cap_strs; + for (i = 0; i < NCAPINTS; i++) { u32 e = err_flags[i]; for (j = 0; j < 32; j++) { - if (e & 1) - printf("%d:%d ", i, j); - + int n = (i << 5)+j; + if (*msg_strs < n) { + /* Skip to the next string */ + do { + msg_strs++; + } while (*msg_strs); + msg_strs++; + } + if (e & 1) { + if (*msg_strs == n && msg_strs[1]) + printf("%s ", msg_strs+1); + else + printf("%d:%d ", i, j); + } e >>= 1; } } diff --git a/arch/x86/boot/mkcpustr.c b/arch/x86/boot/mkcpustr.c new file mode 100644 index 000000000000..bbe76953bae9 --- /dev/null +++ b/arch/x86/boot/mkcpustr.c @@ -0,0 +1,49 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2008 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2 or (at your + * option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +/* + * This is a host program to preprocess the CPU strings into a + * compact format suitable for the setup code. + */ + +#include <stdio.h> + +#include "../kernel/cpu/feature_names.c" + +#if NCAPFLAGS > 8 +# error "Need to adjust the boot code handling of CPUID strings" +#endif + +int main(void) +{ + int i; + const char *str; + + printf("static const char x86_cap_strs[] = \n"); + + for (i = 0; i < NCAPINTS*32; i++) { + str = x86_cap_flags[i]; + + if (i == NCAPINTS*32-1) { + /* The last entry must be unconditional; this + also consumes the compiler-added null character */ + if (!str) + str = ""; + printf("\t\"\\x%02x\"\"%s\"\n", i, str); + } else if (str) { + printf("#if REQUIRED_MASK%d & (1 << %d)\n" + "\t\"\\x%02x\"\"%s\\0\"\n" + "#endif\n", + i >> 5, i & 31, i, str); + } + } + printf("\t;\n"); + return 0; +} diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 0db0a6291bbd..8022d3c695c0 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -722,7 +722,9 @@ ia32_sys_call_table: .quad sys_epoll_pwait .quad compat_sys_utimensat /* 320 */ .quad compat_sys_signalfd - .quad compat_sys_timerfd + .quad sys_timerfd_create .quad sys_eventfd .quad sys32_fallocate + .quad compat_sys_timerfd_settime /* 325 */ + .quad compat_sys_timerfd_gettime ia32_syscall_end: diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 6f813009d44b..21dc1a061bf1 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -37,7 +37,8 @@ obj-$(CONFIG_X86_MSR) += msr.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_PCI) += early-quirks.o -obj-$(CONFIG_APM) += apm_32.o +apm-y := apm_32.o +obj-$(CONFIG_APM) += apm.o obj-$(CONFIG_X86_SMP) += smp_$(BITS).o smpboot_$(BITS).o tsc_sync.o obj-$(CONFIG_X86_32_SMP) += smpcommon_32.o obj-$(CONFIG_X86_64_SMP) += smp_64.o smpboot_64.o tsc_sync.o @@ -74,7 +75,8 @@ ifdef CONFIG_INPUT_PCSPKR obj-y += pcspeaker.o endif -obj-$(CONFIG_SCx200) += scx200_32.o +obj-$(CONFIG_SCx200) += scx200.o +scx200-y += scx200_32.o ### # 64 bit specific files diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 0ca27c7b0e8d..d2a58431a074 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -496,7 +496,8 @@ EXPORT_SYMBOL(acpi_register_gsi); * ACPI based hotplug support for CPU */ #ifdef CONFIG_ACPI_HOTPLUG_CPU -int acpi_map_lsapic(acpi_handle handle, int *pcpu) + +static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; @@ -551,6 +552,11 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu) return 0; } +/* wrapper to silence section mismatch warning */ +int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu) +{ + return _acpi_map_lsapic(handle, pcpu); +} EXPORT_SYMBOL(acpi_map_lsapic); int acpi_unmap_lsapic(int cpu) diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index cfdb2f3bd763..a0c4d7c5dbd7 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -3,6 +3,7 @@ # obj-y := intel_cacheinfo.o addon_cpuid_features.o +obj-y += feature_names.o obj-$(CONFIG_X86_32) += common.o proc.o bugs.o obj-$(CONFIG_X86_32) += amd.o diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 06fa159232fd..693e353999cd 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -304,7 +304,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) if (c->x86 < 6) clear_bit(X86_FEATURE_MCE, c->x86_capability); - if (cpu_has_xmm) + if (cpu_has_xmm2) set_bit(X86_FEATURE_MFENCE_RDTSC, c->x86_capability); } diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index db28aa9e2f69..d9313d9adced 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -258,10 +258,10 @@ static int __cpuinit have_cpuid_p(void) void __init cpu_detect(struct cpuinfo_x86 *c) { /* Get vendor name */ - cpuid(0x00000000, &c->cpuid_level, - (int *)&c->x86_vendor_id[0], - (int *)&c->x86_vendor_id[8], - (int *)&c->x86_vendor_id[4]); + cpuid(0x00000000, (unsigned int *)&c->cpuid_level, + (unsigned int *)&c->x86_vendor_id[0], + (unsigned int *)&c->x86_vendor_id[8], + (unsigned int *)&c->x86_vendor_id[4]); c->x86 = 4; if (c->cpuid_level >= 0x00000001) { @@ -274,14 +274,16 @@ void __init cpu_detect(struct cpuinfo_x86 *c) if (c->x86 >= 0x6) c->x86_model += ((tfms >> 16) & 0xF) << 4; c->x86_mask = tfms & 15; - if (cap0 & (1<<19)) + if (cap0 & (1<<19)) { c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8; + c->x86_clflush_size = ((misc >> 8) & 0xff) * 8; + } } } static void __cpuinit early_get_cap(struct cpuinfo_x86 *c) { u32 tfms, xlvl; - int ebx; + unsigned int ebx; memset(&c->x86_capability, 0, sizeof c->x86_capability); if (have_cpuid_p()) { @@ -317,6 +319,7 @@ static void __init early_cpu_detect(void) struct cpuinfo_x86 *c = &boot_cpu_data; c->x86_cache_alignment = 32; + c->x86_clflush_size = 32; if (!have_cpuid_p()) return; @@ -340,14 +343,14 @@ static void __init early_cpu_detect(void) static void __cpuinit generic_identify(struct cpuinfo_x86 * c) { u32 tfms, xlvl; - int ebx; + unsigned int ebx; if (have_cpuid_p()) { /* Get vendor name */ - cpuid(0x00000000, &c->cpuid_level, - (int *)&c->x86_vendor_id[0], - (int *)&c->x86_vendor_id[8], - (int *)&c->x86_vendor_id[4]); + cpuid(0x00000000, (unsigned int *)&c->cpuid_level, + (unsigned int *)&c->x86_vendor_id[0], + (unsigned int *)&c->x86_vendor_id[8], + (unsigned int *)&c->x86_vendor_id[4]); get_cpu_vendor(c, 0); /* Initialize the standard set of capabilities */ @@ -620,16 +623,6 @@ cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; * They will insert themselves into the cpu_devs structure. * Then, when cpu_init() is called, we can just iterate over that array. */ - -extern int intel_cpu_init(void); -extern int cyrix_init_cpu(void); -extern int nsc_init_cpu(void); -extern int amd_init_cpu(void); -extern int centaur_init_cpu(void); -extern int transmeta_init_cpu(void); -extern int nexgen_init_cpu(void); -extern int umc_init_cpu(void); - void __init early_cpu_init(void) { intel_cpu_init(); diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h index ad6527a5beb1..e0b38c33d842 100644 --- a/arch/x86/kernel/cpu/cpu.h +++ b/arch/x86/kernel/cpu/cpu.h @@ -27,3 +27,12 @@ extern void display_cacheinfo(struct cpuinfo_x86 *c); extern void early_init_intel(struct cpuinfo_x86 *c); extern void early_init_amd(struct cpuinfo_x86 *c); +/* Specific CPU type init functions */ +int intel_cpu_init(void); +int amd_init_cpu(void); +int cyrix_init_cpu(void); +int nsc_init_cpu(void); +int centaur_init_cpu(void); +int transmeta_init_cpu(void); +int nexgen_init_cpu(void); +int umc_init_cpu(void); diff --git a/arch/x86/kernel/cpu/feature_names.c b/arch/x86/kernel/cpu/feature_names.c new file mode 100644 index 000000000000..ee975ac6bbcb --- /dev/null +++ b/arch/x86/kernel/cpu/feature_names.c @@ -0,0 +1,83 @@ +/* + * Strings for the various x86 capability flags. + * + * This file must not contain any executable code. + */ + +#include "asm/cpufeature.h" + +/* + * These flag bits must match the definitions in <asm/cpufeature.h>. + * NULL means this bit is undefined or reserved; either way it doesn't + * have meaning as far as Linux is concerned. Note that it's important + * to realize there is a difference between this table and CPUID -- if + * applications want to get the raw CPUID data, they should access + * /dev/cpu/<cpu_nr>/cpuid instead. + */ +const char * const x86_cap_flags[NCAPINTS*32] = { + /* Intel-defined */ + "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", + "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", + "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", + "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", + + /* AMD-defined */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL, + NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", + "3dnowext", "3dnow", + + /* Transmeta-defined */ + "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Other (Linux-defined) */ + "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", + NULL, NULL, NULL, NULL, + "constant_tsc", "up", NULL, "arch_perfmon", + "pebs", "bts", NULL, NULL, + "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Intel-defined (#2) */ + "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", + "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, + NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt", + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* VIA/Cyrix/Centaur-defined */ + NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", + "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* AMD-defined (#2) */ + "lahf_lm", "cmp_legacy", "svm", "extapic", + "cr8_legacy", "abm", "sse4a", "misalignsse", + "3dnowprefetch", "osvw", "ibs", "sse5", + "skinit", "wdt", NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Auxiliary (Linux-defined) */ + "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +}; + +const char *const x86_power_flags[32] = { + "ts", /* temperature sensor */ + "fid", /* frequency id control */ + "vid", /* voltage id control */ + "ttp", /* thermal trip */ + "tm", + "stc", + "100mhzsteps", + "hwpstate", + "", /* tsc invariant mapped to constant_tsc */ + /* nothing */ +}; diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index d1c372b018db..fae31ce747bd 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -13,6 +13,7 @@ #include <asm/uaccess.h> #include <asm/ptrace.h> #include <asm/ds.h> +#include <asm/bugs.h> #include "cpu.h" diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 8b4507b8469b..1b889860eb73 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -352,8 +352,8 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) */ if ((num_cache_leaves == 0 || c->x86 == 15) && c->cpuid_level > 1) { /* supports eax=2 call */ - int i, j, n; - int regs[4]; + int j, n; + unsigned int regs[4]; unsigned char *dp = (unsigned char *)regs; int only_trace = 0; @@ -368,7 +368,7 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) /* If bit 31 is set, this is an unknown format */ for ( j = 0 ; j < 3 ; j++ ) { - if ( regs[j] < 0 ) regs[j] = 0; + if (regs[j] & (1 << 31)) regs[j] = 0; } /* Byte 0 is level count, not a descriptor */ diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c index 8e139c70f888..ff14c320040c 100644 --- a/arch/x86/kernel/cpu/mtrr/cyrix.c +++ b/arch/x86/kernel/cpu/mtrr/cyrix.c @@ -7,8 +7,6 @@ #include <asm/processor-flags.h> #include "mtrr.h" -int arr3_protected; - static void cyrix_get_arr(unsigned int reg, unsigned long *base, unsigned long *size, mtrr_type * type) @@ -99,8 +97,6 @@ cyrix_get_free_region(unsigned long base, unsigned long size, int replace_reg) case 4: return replace_reg; case 3: - if (arr3_protected) - break; case 2: case 1: case 0: @@ -115,8 +111,6 @@ cyrix_get_free_region(unsigned long base, unsigned long size, int replace_reg) } else { for (i = 0; i < 7; i++) { cyrix_get_arr(i, &lbase, &lsize, <ype); - if ((i == 3) && arr3_protected) - continue; if (lsize == 0) return i; } @@ -260,107 +254,6 @@ static void cyrix_set_all(void) post_set(); } -#if 0 -/* - * On Cyrix 6x86(MX) and M II the ARR3 is special: it has connection - * with the SMM (System Management Mode) mode. So we need the following: - * Check whether SMI_LOCK (CCR3 bit 0) is set - * if it is set, write a warning message: ARR3 cannot be changed! - * (it cannot be changed until the next processor reset) - * if it is reset, then we can change it, set all the needed bits: - * - disable access to SMM memory through ARR3 range (CCR1 bit 7 reset) - * - disable access to SMM memory (CCR1 bit 2 reset) - * - disable SMM mode (CCR1 bit 1 reset) - * - disable write protection of ARR3 (CCR6 bit 1 reset) - * - (maybe) disable ARR3 - * Just to be sure, we enable ARR usage by the processor (CCR5 bit 5 set) - */ -static void __init -cyrix_arr_init(void) -{ - struct set_mtrr_context ctxt; - unsigned char ccr[7]; - int ccrc[7] = { 0, 0, 0, 0, 0, 0, 0 }; -#ifdef CONFIG_SMP - int i; -#endif - - /* flush cache and enable MAPEN */ - set_mtrr_prepare_save(&ctxt); - set_mtrr_cache_disable(&ctxt); - - /* Save all CCRs locally */ - ccr[0] = getCx86(CX86_CCR0); - ccr[1] = getCx86(CX86_CCR1); - ccr[2] = getCx86(CX86_CCR2); - ccr[3] = ctxt.ccr3; - ccr[4] = getCx86(CX86_CCR4); - ccr[5] = getCx86(CX86_CCR5); - ccr[6] = getCx86(CX86_CCR6); - - if (ccr[3] & 1) { - ccrc[3] = 1; - arr3_protected = 1; - } else { - /* Disable SMM mode (bit 1), access to SMM memory (bit 2) and - * access to SMM memory through ARR3 (bit 7). - */ - if (ccr[1] & 0x80) { - ccr[1] &= 0x7f; - ccrc[1] |= 0x80; - } - if (ccr[1] & 0x04) { - ccr[1] &= 0xfb; - ccrc[1] |= 0x04; - } - if (ccr[1] & 0x02) { - ccr[1] &= 0xfd; - ccrc[1] |= 0x02; - } - arr3_protected = 0; - if (ccr[6] & 0x02) { - ccr[6] &= 0xfd; - ccrc[6] = 1; /* Disable write protection of ARR3 */ - setCx86(CX86_CCR6, ccr[6]); - } - /* Disable ARR3. This is safe now that we disabled SMM. */ - /* cyrix_set_arr_up (3, 0, 0, 0, FALSE); */ - } - /* If we changed CCR1 in memory, change it in the processor, too. */ - if (ccrc[1]) - setCx86(CX86_CCR1, ccr[1]); - - /* Enable ARR usage by the processor */ - if (!(ccr[5] & 0x20)) { - ccr[5] |= 0x20; - ccrc[5] = 1; - setCx86(CX86_CCR5, ccr[5]); - } -#ifdef CONFIG_SMP - for (i = 0; i < 7; i++) - ccr_state[i] = ccr[i]; - for (i = 0; i < 8; i++) - cyrix_get_arr(i, - &arr_state[i].base, &arr_state[i].size, - &arr_state[i].type); -#endif - - set_mtrr_done(&ctxt); /* flush cache and disable MAPEN */ - - if (ccrc[5]) - printk(KERN_INFO "mtrr: ARR usage was not enabled, enabled manually\n"); - if (ccrc[3]) - printk(KERN_INFO "mtrr: ARR3 cannot be changed\n"); -/* - if ( ccrc[1] & 0x80) printk ("mtrr: SMM memory access through ARR3 disabled\n"); - if ( ccrc[1] & 0x04) printk ("mtrr: SMM memory access disabled\n"); - if ( ccrc[1] & 0x02) printk ("mtrr: SMM mode disabled\n"); -*/ - if (ccrc[6]) - printk(KERN_INFO "mtrr: ARR3 was write protected, unprotected\n"); -} -#endif - static struct mtrr_ops cyrix_mtrr_ops = { .vendor = X86_VENDOR_CYRIX, // .init = cyrix_arr_init, diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index 715919582657..1e27b69a7a0e 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -59,12 +59,6 @@ struct mtrr_ops * mtrr_if = NULL; static void set_mtrr(unsigned int reg, unsigned long base, unsigned long size, mtrr_type type); -#ifndef CONFIG_X86_64 -extern int arr3_protected; -#else -#define arr3_protected 0 -#endif - void set_mtrr_ops(struct mtrr_ops * ops) { if (ops->vendor && ops->vendor < X86_VENDOR_NUM) @@ -513,12 +507,6 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size) printk(KERN_WARNING "mtrr: register: %d too big\n", reg); goto out; } - if (is_cpu(CYRIX) && !use_intel()) { - if ((reg == 3) && arr3_protected) { - printk(KERN_WARNING "mtrr: ARR3 cannot be changed\n"); - goto out; - } - } mtrr_if->get(reg, &lbase, &lsize, <ype); if (lsize < 1) { printk(KERN_WARNING "mtrr: MTRR %d not used\n", reg); @@ -566,10 +554,6 @@ EXPORT_SYMBOL(mtrr_del); * These should be called implicitly, but we can't yet until all the initcall * stuff is done... */ -extern void amd_init_mtrr(void); -extern void cyrix_init_mtrr(void); -extern void centaur_init_mtrr(void); - static void __init init_ifs(void) { #ifndef CONFIG_X86_64 diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h index fb74a2c20814..2cc77eb6fea3 100644 --- a/arch/x86/kernel/cpu/mtrr/mtrr.h +++ b/arch/x86/kernel/cpu/mtrr/mtrr.h @@ -97,3 +97,7 @@ void mtrr_state_warn(void); const char *mtrr_attrib_to_str(int x); void mtrr_wrmsr(unsigned, unsigned, unsigned); +/* CPU specific mtrr init functions */ +int amd_init_mtrr(void); +int cyrix_init_mtrr(void); +int centaur_init_mtrr(void); diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index 028213260148..af11d31dce0a 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -10,80 +10,6 @@ */ static int show_cpuinfo(struct seq_file *m, void *v) { - /* - * These flag bits must match the definitions in <asm/cpufeature.h>. - * NULL means this bit is undefined or reserved; either way it doesn't - * have meaning as far as Linux is concerned. Note that it's important - * to realize there is a difference between this table and CPUID -- if - * applications want to get the raw CPUID data, they should access - * /dev/cpu/<cpu_nr>/cpuid instead. - */ - static const char * const x86_cap_flags[] = { - /* Intel-defined */ - "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", - "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", - "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", - - /* AMD-defined */ - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL, - NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", - "3dnowext", "3dnow", - - /* Transmeta-defined */ - "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Other (Linux-defined) */ - "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", - NULL, NULL, NULL, NULL, - "constant_tsc", "up", NULL, "arch_perfmon", - "pebs", "bts", NULL, "sync_rdtsc", - "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Intel-defined (#2) */ - "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", - "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* VIA/Cyrix/Centaur-defined */ - NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", - "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* AMD-defined (#2) */ - "lahf_lm", "cmp_legacy", "svm", "extapic", - "cr8_legacy", "abm", "sse4a", "misalignsse", - "3dnowprefetch", "osvw", "ibs", "sse5", - "skinit", "wdt", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Auxiliary (Linux-defined) */ - "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - }; - static const char * const x86_power_flags[] = { - "ts", /* temperature sensor */ - "fid", /* frequency id control */ - "vid", /* voltage id control */ - "ttp", /* thermal trip */ - "tm", - "stc", - "100mhzsteps", - "hwpstate", - "", /* constant_tsc - moved to flags */ - /* nothing */ - }; struct cpuinfo_x86 *c = v; int i, n = 0; int fpu_exception; diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index dec66e452810..288e7a6598ac 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -1,6 +1,6 @@ /* ----------------------------------------------------------------------- * - * - * Copyright 2000 H. Peter Anvin - All Rights Reserved + * + * Copyright 2000-2008 H. Peter Anvin - All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -17,6 +17,10 @@ * and then read in chunks of 16 bytes. A larger size means multiple * reads of consecutive levels. * + * The lower 32 bits of the file position is used as the incoming %eax, + * and the upper 32 bits of the file position as the incoming %ecx, + * the latter intended for "counting" eax levels like eax=4. + * * This driver uses /dev/cpu/%d/cpuid where %d is the minor number, and on * an SMP box will direct the access to CPU %d. */ @@ -43,35 +47,24 @@ static struct class *cpuid_class; -struct cpuid_command { - u32 reg; - u32 *data; +struct cpuid_regs { + u32 eax, ebx, ecx, edx; }; static void cpuid_smp_cpuid(void *cmd_block) { - struct cpuid_command *cmd = cmd_block; - - cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2], - &cmd->data[3]); -} - -static inline void do_cpuid(int cpu, u32 reg, u32 * data) -{ - struct cpuid_command cmd; - - cmd.reg = reg; - cmd.data = data; + struct cpuid_regs *cmd = (struct cpuid_regs *)cmd_block; - smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1); + cpuid_count(cmd->eax, cmd->ecx, + &cmd->eax, &cmd->ebx, &cmd->ecx, &cmd->edx); } static loff_t cpuid_seek(struct file *file, loff_t offset, int orig) { loff_t ret; + struct inode *inode = file->f_mapping->host; - lock_kernel(); - + mutex_lock(&inode->i_mutex); switch (orig) { case 0: file->f_pos = offset; @@ -84,8 +77,7 @@ static loff_t cpuid_seek(struct file *file, loff_t offset, int orig) default: ret = -EINVAL; } - - unlock_kernel(); + mutex_unlock(&inode->i_mutex); return ret; } @@ -93,19 +85,21 @@ static ssize_t cpuid_read(struct file *file, char __user *buf, size_t count, loff_t * ppos) { char __user *tmp = buf; - u32 data[4]; - u32 reg = *ppos; + struct cpuid_regs cmd; int cpu = iminor(file->f_path.dentry->d_inode); + u64 pos = *ppos; if (count % 16) return -EINVAL; /* Invalid chunk size */ for (; count; count -= 16) { - do_cpuid(cpu, reg, data); - if (copy_to_user(tmp, &data, 16)) + cmd.eax = pos; + cmd.ecx = pos >> 32; + smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1); + if (copy_to_user(tmp, &cmd, 16)) return -EFAULT; tmp += 16; - *ppos = reg++; + *ppos = ++pos; } return tmp - buf; @@ -170,7 +164,7 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb, return err ? NOTIFY_BAD : NOTIFY_OK; } -static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier = +static struct notifier_block __refdata cpuid_class_cpu_notifier = { .notifier_call = cpuid_class_cpu_callback, }; @@ -193,7 +187,7 @@ static int __init cpuid_init(void) } for_each_online_cpu(i) { err = cpuid_device_create(i); - if (err != 0) + if (err != 0) goto out_class; } register_hotcpu_notifier(&cpuid_class_cpu_notifier); @@ -208,7 +202,7 @@ out_class: } class_destroy(cpuid_class); out_chrdev: - unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); + unregister_chrdev(CPUID_MAJOR, "cpu/cpuid"); out: return err; } diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c index 1c5ca4d18787..dcd918c1580d 100644 --- a/arch/x86/kernel/ds.c +++ b/arch/x86/kernel/ds.c @@ -223,7 +223,7 @@ int ds_free(void **dsp) if (*dsp) kfree((void *)get_bts_buffer_base(*dsp)); kfree(*dsp); - *dsp = 0; + *dsp = NULL; return 0; } diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c index c617174e8963..9f65b4cc323c 100644 --- a/arch/x86/kernel/e820_64.c +++ b/arch/x86/kernel/e820_64.c @@ -54,30 +54,33 @@ static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT; struct early_res { unsigned long start, end; + char name[16]; }; static struct early_res early_res[MAX_EARLY_RES] __initdata = { - { 0, PAGE_SIZE }, /* BIOS data page */ + { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */ #ifdef CONFIG_SMP - { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE }, + { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE, "SMP_TRAMPOLINE" }, #endif {} }; -void __init reserve_early(unsigned long start, unsigned long end) +void __init reserve_early(unsigned long start, unsigned long end, char *name) { int i; struct early_res *r; for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) { r = &early_res[i]; if (end > r->start && start < r->end) - panic("Overlapping early reservations %lx-%lx to %lx-%lx\n", - start, end, r->start, r->end); + panic("Overlapping early reservations %lx-%lx %s to %lx-%lx %s\n", + start, end - 1, name?name:"", r->start, r->end - 1, r->name); } if (i >= MAX_EARLY_RES) panic("Too many early reservations"); r = &early_res[i]; r->start = start; r->end = end; + if (name) + strncpy(r->name, name, sizeof(r->name) - 1); } void __init early_res_to_bootmem(void) @@ -85,6 +88,8 @@ void __init early_res_to_bootmem(void) int i; for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) { struct early_res *r = &early_res[i]; + printk(KERN_INFO "early res: %d [%lx-%lx] %s\n", i, + r->start, r->end - 1, r->name); reserve_bootmem_generic(r->start, r->end - r->start); } } @@ -166,12 +171,13 @@ int __init e820_all_mapped(unsigned long start, unsigned long end, } /* - * Find a free area in a specific range. + * Find a free area with specified alignment in a specific range. */ unsigned long __init find_e820_area(unsigned long start, unsigned long end, - unsigned size) + unsigned size, unsigned long align) { int i; + unsigned long mask = ~(align - 1); for (i = 0; i < e820.nr_map; i++) { struct e820entry *ei = &e820.map[i]; @@ -185,7 +191,8 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end, continue; while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size) ; - last = PAGE_ALIGN(addr) + size; + addr = (addr + align - 1) & mask; + last = addr + size; if (last > ei->addr + ei->size) continue; if (last > end) diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c index b7d6c23f2871..cff84cd9987f 100644 --- a/arch/x86/kernel/early_printk.c +++ b/arch/x86/kernel/early_printk.c @@ -193,7 +193,7 @@ static struct console simnow_console = { }; /* Direct interface for emergencies */ -struct console *early_console = &early_vga_console; +static struct console *early_console = &early_vga_console; static int early_console_initialized = 0; void early_printk(const char *fmt, ...) diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 1411324a625c..32dd62b36ff7 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -379,11 +379,9 @@ void __init efi_init(void) #endif } -#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) static void __init runtime_code_page_mkexec(void) { efi_memory_desc_t *md; - unsigned long end; void *p; if (!(__supported_pte_mask & _PAGE_NX)) @@ -392,18 +390,13 @@ static void __init runtime_code_page_mkexec(void) /* Make EFI runtime service code area executable */ for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { md = p; - end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); - if (md->type == EFI_RUNTIME_SERVICES_CODE && - (end >> PAGE_SHIFT) <= max_pfn_mapped) { - set_memory_x(md->virt_addr, md->num_pages); - set_memory_uc(md->virt_addr, md->num_pages); - } + + if (md->type != EFI_RUNTIME_SERVICES_CODE) + continue; + + set_memory_x(md->virt_addr, md->num_pages << EFI_PAGE_SHIFT); } - __flush_tlb_all(); } -#else -static inline void __init runtime_code_page_mkexec(void) { } -#endif /* * This function will switch the EFI runtime services to virtual mode. @@ -417,30 +410,40 @@ void __init efi_enter_virtual_mode(void) { efi_memory_desc_t *md; efi_status_t status; - unsigned long end; - void *p; + unsigned long size; + u64 end, systab; + void *p, *va; efi.systab = NULL; for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { md = p; if (!(md->attribute & EFI_MEMORY_RUNTIME)) continue; - end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); - if ((md->attribute & EFI_MEMORY_WB) && - ((end >> PAGE_SHIFT) <= max_pfn_mapped)) - md->virt_addr = (unsigned long)__va(md->phys_addr); + + size = md->num_pages << EFI_PAGE_SHIFT; + end = md->phys_addr + size; + + if ((end >> PAGE_SHIFT) <= max_pfn_mapped) + va = __va(md->phys_addr); else - md->virt_addr = (unsigned long) - efi_ioremap(md->phys_addr, - md->num_pages << EFI_PAGE_SHIFT); - if (!md->virt_addr) + va = efi_ioremap(md->phys_addr, size); + + if (md->attribute & EFI_MEMORY_WB) + set_memory_uc(md->virt_addr, size); + + md->virt_addr = (u64) (unsigned long) va; + + if (!va) { printk(KERN_ERR PFX "ioremap of 0x%llX failed!\n", (unsigned long long)md->phys_addr); - if ((md->phys_addr <= (unsigned long)efi_phys.systab) && - ((unsigned long)efi_phys.systab < end)) - efi.systab = (efi_system_table_t *)(unsigned long) - (md->virt_addr - md->phys_addr + - (unsigned long)efi_phys.systab); + continue; + } + + systab = (u64) (unsigned long) efi_phys.systab; + if (md->phys_addr <= systab && systab < end) { + systab += md->virt_addr - md->phys_addr; + efi.systab = (efi_system_table_t *) (unsigned long) systab; + } } BUG_ON(!efi.systab); diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c index 4b73992c1e11..09d5c2330934 100644 --- a/arch/x86/kernel/efi_64.c +++ b/arch/x86/kernel/efi_64.c @@ -44,7 +44,7 @@ static void __init early_mapping_set_exec(unsigned long start, int executable) { pte_t *kpte; - int level; + unsigned int level; while (start < end) { kpte = lookup_address((unsigned long)__va(start), &level); @@ -54,10 +54,10 @@ static void __init early_mapping_set_exec(unsigned long start, else set_pte(kpte, __pte((pte_val(*kpte) | _PAGE_NX) & \ __supported_pte_mask)); - if (level == 4) - start = (start + PMD_SIZE) & PMD_MASK; - else + if (level == PG_LEVEL_4K) start = (start + PAGE_SIZE) & PAGE_MASK; + else + start = (start + PMD_SIZE) & PMD_MASK; } } @@ -109,23 +109,23 @@ void __init efi_reserve_bootmem(void) memmap.nr_map * memmap.desc_size); } -void __iomem * __init efi_ioremap(unsigned long offset, - unsigned long size) +void __iomem * __init efi_ioremap(unsigned long phys_addr, unsigned long size) { static unsigned pages_mapped; - unsigned long last_addr; unsigned i, pages; - last_addr = offset + size - 1; - offset &= PAGE_MASK; - pages = (PAGE_ALIGN(last_addr) - offset) >> PAGE_SHIFT; + /* phys_addr and size must be page aligned */ + if ((phys_addr & ~PAGE_MASK) || (size & ~PAGE_MASK)) + return NULL; + + pages = size >> PAGE_SHIFT; if (pages_mapped + pages > MAX_EFI_IO_PAGES) return NULL; for (i = 0; i < pages; i++) { __set_fixmap(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped, - offset, PAGE_KERNEL_EXEC_NOCACHE); - offset += PAGE_SIZE; + phys_addr, PAGE_KERNEL); + phys_addr += PAGE_SIZE; pages_mapped++; } diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index a317336cdeaa..24dbf56928d7 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -75,7 +75,7 @@ static __init void reserve_ebda(void) if (ebda_size > 64*1024) ebda_size = 64*1024; - reserve_early(ebda_addr, ebda_addr + ebda_size); + reserve_early(ebda_addr, ebda_addr + ebda_size, "EBDA"); } void __init x86_64_start_kernel(char * real_mode_data) @@ -105,14 +105,14 @@ void __init x86_64_start_kernel(char * real_mode_data) pda_init(0); copy_bootdata(__va(real_mode_data)); - reserve_early(__pa_symbol(&_text), __pa_symbol(&_end)); + reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); /* Reserve INITRD */ if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) { unsigned long ramdisk_image = boot_params.hdr.ramdisk_image; unsigned long ramdisk_size = boot_params.hdr.ramdisk_size; unsigned long ramdisk_end = ramdisk_image + ramdisk_size; - reserve_early(ramdisk_image, ramdisk_end); + reserve_early(ramdisk_image, ramdisk_end, "RAMDISK"); } reserve_ebda(); diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 1d5a7a361200..4f283ad215ec 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -63,7 +63,7 @@ startup_64: /* Is the address not 2M aligned? */ movq %rbp, %rax - andl $~LARGE_PAGE_MASK, %eax + andl $~PMD_PAGE_MASK, %eax testl %eax, %eax jnz bad_address @@ -88,7 +88,7 @@ startup_64: /* Add an Identity mapping if I am above 1G */ leaq _text(%rip), %rdi - andq $LARGE_PAGE_MASK, %rdi + andq $PMD_PAGE_MASK, %rdi movq %rdi, %rax shrq $PUD_SHIFT, %rax diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index 8a7660c8394a..0224c3637c73 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -35,7 +35,8 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload) if (mincount <= pc->size) return 0; oldsize = pc->size; - mincount = (mincount + 511) & (~511); + mincount = (mincount + (PAGE_SIZE / LDT_ENTRY_SIZE - 1)) & + (~(PAGE_SIZE / LDT_ENTRY_SIZE - 1)); if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE) newldt = vmalloc(mincount * LDT_ENTRY_SIZE); else diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c index 6ff447f9fda7..f2702d01b8a8 100644 --- a/arch/x86/kernel/microcode.c +++ b/arch/x86/kernel/microcode.c @@ -797,7 +797,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu) return NOTIFY_OK; } -static struct notifier_block __cpuinitdata mc_cpu_notifier = { +static struct notifier_block __refdata mc_cpu_notifier = { .notifier_call = mc_cpu_callback, }; diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 21f6e3c0be18..af51ea8400b2 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -1,6 +1,6 @@ /* ----------------------------------------------------------------------- * - * - * Copyright 2000 H. Peter Anvin - All Rights Reserved + * + * Copyright 2000-2008 H. Peter Anvin - All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -45,9 +45,10 @@ static struct class *msr_class; static loff_t msr_seek(struct file *file, loff_t offset, int orig) { - loff_t ret = -EINVAL; + loff_t ret; + struct inode *inode = file->f_mapping->host; - lock_kernel(); + mutex_lock(&inode->i_mutex); switch (orig) { case 0: file->f_pos = offset; @@ -56,8 +57,11 @@ static loff_t msr_seek(struct file *file, loff_t offset, int orig) case 1: file->f_pos += offset; ret = file->f_pos; + break; + default: + ret = -EINVAL; } - unlock_kernel(); + mutex_unlock(&inode->i_mutex); return ret; } @@ -168,7 +172,7 @@ static int __cpuinit msr_class_cpu_callback(struct notifier_block *nfb, return err ? NOTIFY_BAD : NOTIFY_OK; } -static struct notifier_block __cpuinitdata msr_class_cpu_notifier = { +static struct notifier_block __refdata msr_class_cpu_notifier = { .notifier_call = msr_class_cpu_callback, }; diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 21f34db2c03c..1b5464c2434f 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -35,6 +35,7 @@ #include <linux/pci.h> #include <linux/delay.h> #include <linux/scatterlist.h> +#include <linux/iommu-helper.h> #include <asm/gart.h> #include <asm/calgary.h> #include <asm/tce.h> @@ -260,22 +261,28 @@ static void iommu_range_reserve(struct iommu_table *tbl, spin_unlock_irqrestore(&tbl->it_lock, flags); } -static unsigned long iommu_range_alloc(struct iommu_table *tbl, - unsigned int npages) +static unsigned long iommu_range_alloc(struct device *dev, + struct iommu_table *tbl, + unsigned int npages) { unsigned long flags; unsigned long offset; + unsigned long boundary_size; + + boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, + PAGE_SIZE) >> PAGE_SHIFT; BUG_ON(npages == 0); spin_lock_irqsave(&tbl->it_lock, flags); - offset = find_next_zero_string(tbl->it_map, tbl->it_hint, - tbl->it_size, npages); + offset = iommu_area_alloc(tbl->it_map, tbl->it_size, tbl->it_hint, + npages, 0, boundary_size, 0); if (offset == ~0UL) { tbl->chip_ops->tce_cache_blast(tbl); - offset = find_next_zero_string(tbl->it_map, 0, - tbl->it_size, npages); + + offset = iommu_area_alloc(tbl->it_map, tbl->it_size, 0, + npages, 0, boundary_size, 0); if (offset == ~0UL) { printk(KERN_WARNING "Calgary: IOMMU full.\n"); spin_unlock_irqrestore(&tbl->it_lock, flags); @@ -286,7 +293,6 @@ static unsigned long iommu_range_alloc(struct iommu_table *tbl, } } - set_bit_string(tbl->it_map, offset, npages); tbl->it_hint = offset + npages; BUG_ON(tbl->it_hint > tbl->it_size); @@ -295,13 +301,13 @@ static unsigned long iommu_range_alloc(struct iommu_table *tbl, return offset; } -static dma_addr_t iommu_alloc(struct iommu_table *tbl, void *vaddr, - unsigned int npages, int direction) +static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl, + void *vaddr, unsigned int npages, int direction) { unsigned long entry; dma_addr_t ret = bad_dma_address; - entry = iommu_range_alloc(tbl, npages); + entry = iommu_range_alloc(dev, tbl, npages); if (unlikely(entry == bad_dma_address)) goto error; @@ -354,7 +360,7 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, badbit, tbl, dma_addr, entry, npages); } - __clear_bit_string(tbl->it_map, entry, npages); + iommu_area_free(tbl->it_map, entry, npages); spin_unlock_irqrestore(&tbl->it_lock, flags); } @@ -438,7 +444,7 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg, vaddr = (unsigned long) sg_virt(s); npages = num_dma_pages(vaddr, s->length); - entry = iommu_range_alloc(tbl, npages); + entry = iommu_range_alloc(dev, tbl, npages); if (entry == bad_dma_address) { /* makes sure unmap knows to stop */ s->dma_length = 0; @@ -476,7 +482,7 @@ static dma_addr_t calgary_map_single(struct device *dev, void *vaddr, npages = num_dma_pages(uaddr, size); if (translation_enabled(tbl)) - dma_handle = iommu_alloc(tbl, vaddr, npages, direction); + dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction); else dma_handle = virt_to_bus(vaddr); @@ -516,7 +522,7 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size, if (translation_enabled(tbl)) { /* set up tces to cover the allocated range */ - mapping = iommu_alloc(tbl, ret, npages, DMA_BIDIRECTIONAL); + mapping = iommu_alloc(dev, tbl, ret, npages, DMA_BIDIRECTIONAL); if (mapping == bad_dma_address) goto free; @@ -1006,7 +1012,7 @@ static void __init calgary_set_split_completion_timeout(void __iomem *bbar, readq(target); /* flush */ } -static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev) +static void __init calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev) { unsigned char busnum = dev->bus->number; void __iomem *bbar = tbl->bbar; @@ -1022,7 +1028,7 @@ static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev) writel(cpu_to_be32(val), target); } -static void calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev) +static void __init calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev) { unsigned char busnum = dev->bus->number; diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 4d5cc7181982..65f6acb025c8 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -25,6 +25,7 @@ #include <linux/bitops.h> #include <linux/kdebug.h> #include <linux/scatterlist.h> +#include <linux/iommu-helper.h> #include <asm/atomic.h> #include <asm/io.h> #include <asm/mtrr.h> @@ -82,17 +83,24 @@ AGPEXTERN __u32 *agp_gatt_table; static unsigned long next_bit; /* protected by iommu_bitmap_lock */ static int need_flush; /* global flush state. set for each gart wrap */ -static unsigned long alloc_iommu(int size) +static unsigned long alloc_iommu(struct device *dev, int size) { unsigned long offset, flags; + unsigned long boundary_size; + unsigned long base_index; + + base_index = ALIGN(iommu_bus_base & dma_get_seg_boundary(dev), + PAGE_SIZE) >> PAGE_SHIFT; + boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, + PAGE_SIZE) >> PAGE_SHIFT; spin_lock_irqsave(&iommu_bitmap_lock, flags); - offset = find_next_zero_string(iommu_gart_bitmap, next_bit, - iommu_pages, size); + offset = iommu_area_alloc(iommu_gart_bitmap, iommu_pages, next_bit, + size, base_index, boundary_size, 0); if (offset == -1) { need_flush = 1; - offset = find_next_zero_string(iommu_gart_bitmap, 0, - iommu_pages, size); + offset = iommu_area_alloc(iommu_gart_bitmap, iommu_pages, 0, + size, base_index, boundary_size, 0); } if (offset != -1) { set_bit_string(iommu_gart_bitmap, offset, size); @@ -114,7 +122,7 @@ static void free_iommu(unsigned long offset, int size) unsigned long flags; spin_lock_irqsave(&iommu_bitmap_lock, flags); - __clear_bit_string(iommu_gart_bitmap, offset, size); + iommu_area_free(iommu_gart_bitmap, offset, size); spin_unlock_irqrestore(&iommu_bitmap_lock, flags); } @@ -235,7 +243,7 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem, size_t size, int dir) { unsigned long npages = to_pages(phys_mem, size); - unsigned long iommu_page = alloc_iommu(npages); + unsigned long iommu_page = alloc_iommu(dev, npages); int i; if (iommu_page == -1) { @@ -355,10 +363,11 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg, } /* Map multiple scatterlist entries continuous into the first. */ -static int __dma_map_cont(struct scatterlist *start, int nelems, - struct scatterlist *sout, unsigned long pages) +static int __dma_map_cont(struct device *dev, struct scatterlist *start, + int nelems, struct scatterlist *sout, + unsigned long pages) { - unsigned long iommu_start = alloc_iommu(pages); + unsigned long iommu_start = alloc_iommu(dev, pages); unsigned long iommu_page = iommu_start; struct scatterlist *s; int i; @@ -394,8 +403,8 @@ static int __dma_map_cont(struct scatterlist *start, int nelems, } static inline int -dma_map_cont(struct scatterlist *start, int nelems, struct scatterlist *sout, - unsigned long pages, int need) +dma_map_cont(struct device *dev, struct scatterlist *start, int nelems, + struct scatterlist *sout, unsigned long pages, int need) { if (!need) { BUG_ON(nelems != 1); @@ -403,7 +412,7 @@ dma_map_cont(struct scatterlist *start, int nelems, struct scatterlist *sout, sout->dma_length = start->length; return 0; } - return __dma_map_cont(start, nelems, sout, pages); + return __dma_map_cont(dev, start, nelems, sout, pages); } /* @@ -416,6 +425,8 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) struct scatterlist *s, *ps, *start_sg, *sgmap; int need = 0, nextneed, i, out, start; unsigned long pages = 0; + unsigned int seg_size; + unsigned int max_seg_size; if (nents == 0) return 0; @@ -426,6 +437,8 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) out = 0; start = 0; start_sg = sgmap = sg; + seg_size = 0; + max_seg_size = dma_get_max_seg_size(dev); ps = NULL; /* shut up gcc */ for_each_sg(sg, s, nents, i) { dma_addr_t addr = sg_phys(s); @@ -443,11 +456,13 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) * offset. */ if (!iommu_merge || !nextneed || !need || s->offset || + (s->length + seg_size > max_seg_size) || (ps->offset + ps->length) % PAGE_SIZE) { - if (dma_map_cont(start_sg, i - start, sgmap, - pages, need) < 0) + if (dma_map_cont(dev, start_sg, i - start, + sgmap, pages, need) < 0) goto error; out++; + seg_size = 0; sgmap = sg_next(sgmap); pages = 0; start = i; @@ -455,11 +470,12 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) } } + seg_size += s->length; need = nextneed; pages += to_pages(s->offset, s->length); ps = s; } - if (dma_map_cont(start_sg, i - start, sgmap, pages, need) < 0) + if (dma_map_cont(dev, start_sg, i - start, sgmap, pages, need) < 0) goto error; out++; flush_gart(); @@ -501,7 +517,7 @@ static __init unsigned long check_iommu_size(unsigned long aper, u64 aper_size) } a = aper + iommu_size; - iommu_size -= round_up(a, LARGE_PAGE_SIZE) - a; + iommu_size -= round_up(a, PMD_PAGE_SIZE) - a; if (iommu_size < 64*1024*1024) { printk(KERN_WARNING @@ -731,7 +747,8 @@ void __init gart_iommu_init(void) * the backing memory. The GART address is only used by PCI * devices. */ - clear_kernel_mapping((unsigned long)__va(iommu_bus_base), iommu_size); + set_memory_np((unsigned long)__va(iommu_bus_base), + iommu_size >> PAGE_SHIFT); /* * Try to workaround a bug (thanks to BenH) diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 968371ab223a..dabdbeff1f77 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -251,7 +251,7 @@ void cpu_idle_wait(void) * because it has nothing to do. * Give all the remaining CPUS a kick. */ - smp_call_function_mask(map, do_nothing, 0, 0); + smp_call_function_mask(map, do_nothing, NULL, 0); } while (!cpus_empty(map)); set_cpus_allowed(current, tmp); diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 150ba29a0d33..3cd7a2dcd4fe 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -30,8 +30,8 @@ static void __devinit quirk_intel_irqbalance(struct pci_dev *dev) raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word); if (!(word & (1 << 13))) { - printk(KERN_INFO "Intel E7520/7320/7525 detected. " - "Disabling irq balancing and affinity\n"); + dev_info(&dev->dev, "Intel E7520/7320/7525 detected; " + "disabling irq balancing and affinity\n"); #ifdef CONFIG_IRQBALANCE irqbalance_disable(""); #endif @@ -104,14 +104,16 @@ static void ich_force_enable_hpet(struct pci_dev *dev) pci_read_config_dword(dev, 0xF0, &rcba); rcba &= 0xFFFFC000; if (rcba == 0) { - printk(KERN_DEBUG "RCBA disabled. Cannot force enable HPET\n"); + dev_printk(KERN_DEBUG, &dev->dev, "RCBA disabled; " + "cannot force enable HPET\n"); return; } /* use bits 31:14, 16 kB aligned */ rcba_base = ioremap_nocache(rcba, 0x4000); if (rcba_base == NULL) { - printk(KERN_DEBUG "ioremap failed. Cannot force enable HPET\n"); + dev_printk(KERN_DEBUG, &dev->dev, "ioremap failed; " + "cannot force enable HPET\n"); return; } @@ -122,8 +124,8 @@ static void ich_force_enable_hpet(struct pci_dev *dev) /* HPET is enabled in HPTC. Just not reported by BIOS */ val = val & 0x3; force_hpet_address = 0xFED00000 | (val << 12); - printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at " + "0x%lx\n", force_hpet_address); iounmap(rcba_base); return; } @@ -142,11 +144,12 @@ static void ich_force_enable_hpet(struct pci_dev *dev) if (err) { force_hpet_address = 0; iounmap(rcba_base); - printk(KERN_DEBUG "Failed to force enable HPET\n"); + dev_printk(KERN_DEBUG, &dev->dev, + "Failed to force enable HPET\n"); } else { force_hpet_resume_type = ICH_FORCE_HPET_RESUME; - printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at " + "0x%lx\n", force_hpet_address); } } @@ -208,8 +211,8 @@ static void old_ich_force_enable_hpet(struct pci_dev *dev) if (val & 0x4) { val &= 0x3; force_hpet_address = 0xFED00000 | (val << 12); - printk(KERN_DEBUG "HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "HPET at 0x%lx\n", + force_hpet_address); return; } @@ -229,14 +232,14 @@ static void old_ich_force_enable_hpet(struct pci_dev *dev) /* HPET is enabled in HPTC. Just not reported by BIOS */ val &= 0x3; force_hpet_address = 0xFED00000 | (val << 12); - printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at " + "0x%lx\n", force_hpet_address); cached_dev = dev; force_hpet_resume_type = OLD_ICH_FORCE_HPET_RESUME; return; } - printk(KERN_DEBUG "Failed to force enable HPET\n"); + dev_printk(KERN_DEBUG, &dev->dev, "Failed to force enable HPET\n"); } /* @@ -294,8 +297,8 @@ static void vt8237_force_enable_hpet(struct pci_dev *dev) */ if (val & 0x80) { force_hpet_address = (val & ~0x3ff); - printk(KERN_DEBUG "HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "HPET at 0x%lx\n", + force_hpet_address); return; } @@ -309,14 +312,14 @@ static void vt8237_force_enable_hpet(struct pci_dev *dev) pci_read_config_dword(dev, 0x68, &val); if (val & 0x80) { force_hpet_address = (val & ~0x3ff); - printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n", - force_hpet_address); + dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at " + "0x%lx\n", force_hpet_address); cached_dev = dev; force_hpet_resume_type = VT8237_FORCE_HPET_RESUME; return; } - printk(KERN_DEBUG "Failed to force enable HPET\n"); + dev_printk(KERN_DEBUG, &dev->dev, "Failed to force enable HPET\n"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, @@ -344,7 +347,7 @@ static void nvidia_force_enable_hpet(struct pci_dev *dev) pci_read_config_dword(dev, 0x44, &val); force_hpet_address = val & 0xfffffffe; force_hpet_resume_type = NVIDIA_FORCE_HPET_RESUME; - printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n", + dev_printk(KERN_DEBUG, &dev->dev, "Force enabled HPET at 0x%lx\n", force_hpet_address); cached_dev = dev; return; diff --git a/arch/x86/kernel/scx200_32.c b/arch/x86/kernel/scx200_32.c index 87bc159d29df..7e004acbe526 100644 --- a/arch/x86/kernel/scx200_32.c +++ b/arch/x86/kernel/scx200_32.c @@ -65,7 +65,7 @@ static int __devinit scx200_probe(struct pci_dev *pdev, const struct pci_device_ base = pci_resource_start(pdev, 0); printk(KERN_INFO NAME ": GPIO base 0x%x\n", base); - if (request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO") == 0) { + if (!request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO")) { printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n"); return -EBUSY; } diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 77fb87bf6e5a..c8939dfddfba 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -182,7 +182,8 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) unsigned long bootmap_size, bootmap; bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT; - bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size); + bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size, + PAGE_SIZE); if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n", bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); @@ -1067,82 +1068,6 @@ static int show_cpuinfo(struct seq_file *m, void *v) struct cpuinfo_x86 *c = v; int cpu = 0, i; - /* - * These flag bits must match the definitions in <asm/cpufeature.h>. - * NULL means this bit is undefined or reserved; either way it doesn't - * have meaning as far as Linux is concerned. Note that it's important - * to realize there is a difference between this table and CPUID -- if - * applications want to get the raw CPUID data, they should access - * /dev/cpu/<cpu_nr>/cpuid instead. - */ - static const char *const x86_cap_flags[] = { - /* Intel-defined */ - "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", - "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", - "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", - - /* AMD-defined */ - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL, - NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", - "3dnowext", "3dnow", - - /* Transmeta-defined */ - "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Other (Linux-defined) */ - "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", - NULL, NULL, NULL, NULL, - "constant_tsc", "up", NULL, "arch_perfmon", - "pebs", "bts", NULL, "sync_rdtsc", - "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Intel-defined (#2) */ - "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", - "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* VIA/Cyrix/Centaur-defined */ - NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", - "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* AMD-defined (#2) */ - "lahf_lm", "cmp_legacy", "svm", "extapic", - "cr8_legacy", "abm", "sse4a", "misalignsse", - "3dnowprefetch", "osvw", "ibs", "sse5", - "skinit", "wdt", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Auxiliary (Linux-defined) */ - "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - }; - static const char *const x86_power_flags[] = { - "ts", /* temperature sensor */ - "fid", /* frequency id control */ - "vid", /* voltage id control */ - "ttp", /* thermal trip */ - "tm", - "stc", - "100mhzsteps", - "hwpstate", - "", /* tsc invariant mapped to constant_tsc */ - /* nothing */ - }; - - #ifdef CONFIG_SMP cpu = c->cpu_index; #endif diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index cc64b8085c2a..d53bd6fcb428 100644 --- a/arch/x86/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c @@ -1019,7 +1019,7 @@ static void remove_siblinginfo(int cpu) cpu_clear(cpu, cpu_sibling_setup_map); } -void remove_cpu_from_maps(void) +static void __ref remove_cpu_from_maps(void) { int cpu = smp_processor_id(); diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c index 09199511c256..7ac7130022f1 100644 --- a/arch/x86/kernel/suspend_64.c +++ b/arch/x86/kernel/suspend_64.c @@ -140,7 +140,12 @@ static void fix_processor_context(void) int cpu = smp_processor_id(); struct tss_struct *t = &per_cpu(init_tss, cpu); - set_tss_desc(cpu,t); /* This just modifies memory; should not be necessary. But... This is necessary, because 386 hardware has concept of busy TSS or some similar stupidity. */ + /* + * This just modifies memory; should not be necessary. But... This + * is necessary, because 386 hardware has concept of busy TSS or some + * similar stupidity. + */ + set_tss_desc(cpu, t); get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; @@ -160,7 +165,6 @@ static void fix_processor_context(void) loaddebug(¤t->thread, 6); loaddebug(¤t->thread, 7); } - } #ifdef CONFIG_HIBERNATION diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S index 8344c70adf61..adff5562f5fd 100644 --- a/arch/x86/kernel/syscall_table_32.S +++ b/arch/x86/kernel/syscall_table_32.S @@ -321,6 +321,8 @@ ENTRY(sys_call_table) .long sys_epoll_pwait .long sys_utimensat /* 320 */ .long sys_signalfd - .long sys_timerfd + .long sys_timerfd_create .long sys_eventfd .long sys_fallocate + .long sys_timerfd_settime /* 325 */ + .long sys_timerfd_gettime diff --git a/arch/x86/kernel/test_nx.c b/arch/x86/kernel/test_nx.c index 6d7ef11e7975..36c100c323aa 100644 --- a/arch/x86/kernel/test_nx.c +++ b/arch/x86/kernel/test_nx.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/sort.h> #include <asm/uaccess.h> +#include <asm/asm.h> extern int rodata_test_data; @@ -89,11 +90,7 @@ static noinline int test_address(void *address) "2: mov %[zero], %[rslt]\n" " ret\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b\n" - " .quad 2b\n" - ".previous\n" + _ASM_EXTABLE(0b,2b) : [rslt] "=r" (result) : [fake_code] "r" (address), [zero] "r" (0UL), "0" (result) ); diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index 78cbb655aa79..e6757aaa202b 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -57,11 +57,10 @@ void arch_unregister_cpu(int num) } EXPORT_SYMBOL(arch_unregister_cpu); #else -int arch_register_cpu(int num) +static int __init arch_register_cpu(int num) { return register_cpu(&per_cpu(cpu_devices, num).cpu, num); } -EXPORT_SYMBOL(arch_register_cpu); #endif /*CONFIG_HOTPLUG_CPU*/ static int __init topology_init(void) diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S index 9bcc1c6aca3d..64580679861e 100644 --- a/arch/x86/kernel/trampoline_32.S +++ b/arch/x86/kernel/trampoline_32.S @@ -11,12 +11,7 @@ * trampoline page to make our stack and everything else * is a mystery. * - * In fact we don't actually need a stack so we don't - * set one up. - * - * We jump into the boot/compressed/head.S code. So you'd - * better be running a compressed kernel image or you - * won't get very far. + * We jump into arch/x86/kernel/head_32.S. * * On entry to trampoline_data, the processor is in real mode * with 16-bit addressing and 16-bit data. CS has some value diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S index e30b67c6a9f5..4aedd0bcee4c 100644 --- a/arch/x86/kernel/trampoline_64.S +++ b/arch/x86/kernel/trampoline_64.S @@ -10,9 +10,6 @@ * trampoline page to make our stack and everything else * is a mystery. * - * In fact we don't actually need a stack so we don't - * set one up. - * * On entry to trampoline_data, the processor is in real mode * with 16-bit addressing and 16-bit data. CS has some value * and IP is zero. Thus, data addresses need to be absolute diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c index 4525bc2c2e19..12affe1f9bce 100644 --- a/arch/x86/kernel/vmi_32.c +++ b/arch/x86/kernel/vmi_32.c @@ -220,21 +220,21 @@ static void vmi_set_tr(void) static void vmi_write_idt_entry(gate_desc *dt, int entry, const gate_desc *g) { u32 *idt_entry = (u32 *)g; - vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[2]); + vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[1]); } static void vmi_write_gdt_entry(struct desc_struct *dt, int entry, const void *desc, int type) { u32 *gdt_entry = (u32 *)desc; - vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[2]); + vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[1]); } static void vmi_write_ldt_entry(struct desc_struct *dt, int entry, const void *desc) { u32 *ldt_entry = (u32 *)desc; - vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[2]); + vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[1]); } static void vmi_load_sp0(struct tss_struct *tss, diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index c83e1c9b5129..41962e793c0f 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -53,5 +53,6 @@ config KVM_AMD # OK, it's a little counter-intuitive to do this, but it puts it neatly under # the virtualization menu. source drivers/lguest/Kconfig +source drivers/virtio/Kconfig endif # VIRTUALIZATION diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8f94a0b89dff..cf5308148689 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1739,7 +1739,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr, if (bytes == 8) { gpa_t gpa; struct page *page; - char *addr; + char *kaddr; u64 val; down_read(¤t->mm->mmap_sem); @@ -1754,9 +1754,9 @@ static int emulator_cmpxchg_emulated(unsigned long addr, val = *(u64 *)new; page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); - addr = kmap_atomic(page, KM_USER0); - set_64bit((u64 *)(addr + offset_in_page(gpa)), val); - kunmap_atomic(addr, KM_USER0); + kaddr = kmap_atomic(page, KM_USER0); + set_64bit((u64 *)(kaddr + offset_in_page(gpa)), val); + kunmap_atomic(kaddr, KM_USER0); kvm_release_page_dirty(page); emul_write: up_read(¤t->mm->mmap_sem); diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 4876182daf8a..25df1c1989fe 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -21,7 +21,7 @@ else lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o lib-y += thunk_64.o clear_page_64.o copy_page_64.o - lib-y += bitstr_64.o bitops_64.o + lib-y += bitops_64.o lib-y += memmove_64.o memset_64.o lib-y += copy_user_64.o rwlock_64.o copy_user_nocache_64.o endif diff --git a/arch/x86/lib/bitops_32.c b/arch/x86/lib/bitops_32.c index afd0045595d4..b65440459859 100644 --- a/arch/x86/lib/bitops_32.c +++ b/arch/x86/lib/bitops_32.c @@ -2,7 +2,7 @@ #include <linux/module.h> /** - * find_next_bit - find the first set bit in a memory region + * find_next_bit - find the next set bit in a memory region * @addr: The address to base the search on * @offset: The bitnumber to start searching at * @size: The maximum size to search diff --git a/arch/x86/lib/bitops_64.c b/arch/x86/lib/bitops_64.c index 95b6d9639fba..0e8f491e6ccc 100644 --- a/arch/x86/lib/bitops_64.c +++ b/arch/x86/lib/bitops_64.c @@ -58,7 +58,7 @@ long find_first_zero_bit(const unsigned long * addr, unsigned long size) } /** - * find_next_zero_bit - find the first zero bit in a memory region + * find_next_zero_bit - find the next zero bit in a memory region * @addr: The address to base the search on * @offset: The bitnumber to start searching at * @size: The maximum size to search diff --git a/arch/x86/lib/bitstr_64.c b/arch/x86/lib/bitstr_64.c deleted file mode 100644 index 7445caf1b5de..000000000000 --- a/arch/x86/lib/bitstr_64.c +++ /dev/null @@ -1,28 +0,0 @@ -#include <linux/module.h> -#include <linux/bitops.h> - -/* Find string of zero bits in a bitmap */ -unsigned long -find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len) -{ - unsigned long n, end, i; - - again: - n = find_next_zero_bit(bitmap, nbits, start); - if (n == -1) - return -1; - - /* could test bitsliced, but it's hardly worth it */ - end = n+len; - if (end > nbits) - return -1; - for (i = n+1; i < end; i++) { - if (test_bit(i, bitmap)) { - start = i+1; - goto again; - } - } - return n; -} - -EXPORT_SYMBOL(find_next_zero_string); diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c index 28084d2e8dd4..cc9b4a4450f3 100644 --- a/arch/x86/lib/mmx_32.c +++ b/arch/x86/lib/mmx_32.c @@ -4,6 +4,7 @@ #include <linux/hardirq.h> #include <linux/module.h> +#include <asm/asm.h> #include <asm/i387.h> @@ -50,10 +51,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from) ); @@ -81,10 +79,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len) "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from), "r" (to) : "memory"); from+=64; to+=64; @@ -181,10 +176,7 @@ static void fast_copy_page(void *to, void *from) "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from) ); for(i=0; i<(4096-320)/64; i++) @@ -211,10 +203,7 @@ static void fast_copy_page(void *to, void *from) "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from), "r" (to) : "memory"); from+=64; to+=64; @@ -311,10 +300,7 @@ static void fast_copy_page(void *to, void *from) "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from) ); for(i=0; i<4096/64; i++) @@ -341,10 +327,7 @@ static void fast_copy_page(void *to, void *from) "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 1b, 3b\n" - ".previous" + _ASM_EXTABLE(1b,3b) : : "r" (from), "r" (to) : "memory"); from+=64; to+=64; diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index 8bab2b2efaff..e849b9998b0e 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -48,10 +48,7 @@ do { \ "3: movl %5,%0\n" \ " jmp 2b\n" \ ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .long 0b,3b\n" \ - ".previous" \ + _ASM_EXTABLE(0b,3b) \ : "=d"(res), "=c"(count), "=&a" (__d0), "=&S" (__d1), \ "=&D" (__d2) \ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ @@ -132,11 +129,8 @@ do { \ "3: lea 0(%2,%0,4),%0\n" \ " jmp 2b\n" \ ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 4\n" \ - " .long 0b,3b\n" \ - " .long 1b,2b\n" \ - ".previous" \ + _ASM_EXTABLE(0b,3b) \ + _ASM_EXTABLE(1b,2b) \ : "=&c"(size), "=&D" (__d0) \ : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \ } while (0) @@ -817,6 +811,7 @@ unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from, #endif return n; } +EXPORT_SYMBOL(__copy_from_user_ll_nocache); unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from, unsigned long n) @@ -831,6 +826,7 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr #endif return n; } +EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero); /** * copy_to_user: - Copy a block of data into user space. diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index 893d43f838cc..0c89d1bb0287 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -31,10 +31,7 @@ do { \ "3: movq %5,%0\n" \ " jmp 2b\n" \ ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .align 8\n" \ - " .quad 0b,3b\n" \ - ".previous" \ + _ASM_EXTABLE(0b,3b) \ : "=r"(res), "=c"(count), "=&a" (__d0), "=&S" (__d1), \ "=&D" (__d2) \ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ @@ -87,11 +84,8 @@ unsigned long __clear_user(void __user *addr, unsigned long size) "3: lea 0(%[size1],%[size8],8),%[size8]\n" " jmp 2b\n" ".previous\n" - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b,3b\n" - " .quad 1b,2b\n" - ".previous" + _ASM_EXTABLE(0b,3b) + _ASM_EXTABLE(1b,2b) : [size8] "=c"(size), [dst] "=&D" (__d0) : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr), [zero] "r" (0UL), [eight] "r" (8UL)); diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index e28cc5277b16..ad8b9733d6b3 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -240,7 +240,8 @@ void dump_pagetable(unsigned long address) pud = pud_offset(pgd, address); if (bad_address(pud)) goto bad; printk("PUD %lx ", pud_val(*pud)); - if (!pud_present(*pud)) goto ret; + if (!pud_present(*pud) || pud_large(*pud)) + goto ret; pmd = pmd_offset(pud, address); if (bad_address(pmd)) goto bad; @@ -382,7 +383,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code, #ifdef CONFIG_X86_PAE if (error_code & PF_INSTR) { - int level; + unsigned int level; pte_t *pte = lookup_address(address, &level); if (pte && pte_present(*pte) && !pte_exec(*pte)) @@ -508,6 +509,10 @@ static int vmalloc_fault(unsigned long address) pmd_t *pmd, *pmd_ref; pte_t *pte, *pte_ref; + /* Make sure we are in vmalloc area */ + if (!(address >= VMALLOC_START && address < VMALLOC_END)) + return -1; + /* Copy kernel mappings over when needed. This can also happen within a race in page table update. In the later case just flush. */ @@ -603,6 +608,9 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) */ #ifdef CONFIG_X86_32 if (unlikely(address >= TASK_SIZE)) { +#else + if (unlikely(address >= TASK_SIZE64)) { +#endif if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) && vmalloc_fault(address) >= 0) return; @@ -618,6 +626,8 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) goto bad_area_nosemaphore; } + +#ifdef CONFIG_X86_32 /* It's safe to allow irq's after cr2 has been saved and the vmalloc fault has been handled. */ if (regs->flags & (X86_EFLAGS_IF|VM_MASK)) @@ -630,28 +640,6 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) if (in_atomic() || !mm) goto bad_area_nosemaphore; #else /* CONFIG_X86_64 */ - if (unlikely(address >= TASK_SIZE64)) { - /* - * Don't check for the module range here: its PML4 - * is always initialized because it's shared with the main - * kernel text. Only vmalloc may need PML4 syncups. - */ - if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) && - ((address >= VMALLOC_START && address < VMALLOC_END))) { - if (vmalloc_fault(address) >= 0) - return; - } - - /* Can handle a stale RO->RW TLB */ - if (spurious_fault(address, error_code)) - return; - - /* - * Don't take the mm semaphore here. If we fixup a prefetch - * fault we could otherwise deadlock. - */ - goto bad_area_nosemaphore; - } if (likely(regs->flags & X86_EFLAGS_IF)) local_irq_enable(); diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index da524fb22422..d1bc04006d16 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -31,6 +31,7 @@ #include <linux/initrd.h> #include <linux/cpumask.h> +#include <asm/asm.h> #include <asm/processor.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -423,23 +424,23 @@ static void __init pagetable_init(void) paravirt_pagetable_setup_done(pgd_base); } -#if defined(CONFIG_HIBERNATION) || defined(CONFIG_ACPI) +#ifdef CONFIG_ACPI_SLEEP /* - * Swap suspend & friends need this for resume because things like the intel-agp + * ACPI suspend needs this for resume, because things like the intel-agp * driver might have split up a kernel 4MB mapping. */ -char __nosavedata swsusp_pg_dir[PAGE_SIZE] +char swsusp_pg_dir[PAGE_SIZE] __attribute__ ((aligned(PAGE_SIZE))); static inline void save_pg_dir(void) { memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE); } -#else +#else /* !CONFIG_ACPI_SLEEP */ static inline void save_pg_dir(void) { } -#endif +#endif /* !CONFIG_ACPI_SLEEP */ void zap_low_mappings(void) { @@ -718,10 +719,7 @@ static noinline int do_test_wp_bit(void) "1: movb %1, %0 \n" " xorl %2, %2 \n" "2: \n" - ".section __ex_table, \"a\"\n" - " .align 4 \n" - " .long 1b, 2b \n" - ".previous \n" + _ASM_EXTABLE(1b,2b) :"=m" (*(char *)fix_to_virt(FIX_WP_TEST)), "=q" (tmp_reg), "=r" (flag) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index cc50a13ce8d9..3a98d6f724ab 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -273,7 +273,6 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end) int i = pmd_index(address); for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) { - unsigned long entry; pmd_t *pmd = pmd_page + pmd_index(address); if (address >= end) { @@ -287,9 +286,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end) if (pmd_val(*pmd)) continue; - entry = __PAGE_KERNEL_LARGE|_PAGE_GLOBAL|address; - entry &= __supported_pte_mask; - set_pmd(pmd, __pmd(entry)); + set_pte((pte_t *)pmd, + pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE)); } } @@ -354,17 +352,10 @@ static void __init find_early_table_space(unsigned long end) * need roughly 0.5KB per GB. */ start = 0x8000; - table_start = find_e820_area(start, end, tables); + table_start = find_e820_area(start, end, tables, PAGE_SIZE); if (table_start == -1UL) panic("Cannot find space for the kernel page tables"); - /* - * When you have a lot of RAM like 256GB, early_table will not fit - * into 0x8000 range, find_e820_area() will find area after kernel - * bss but the table_start is not page aligned, so need to round it - * up to avoid overlap with bss: - */ - table_start = round_up(table_start, PAGE_SIZE); table_start >>= PAGE_SHIFT; table_end = table_start; @@ -420,7 +411,9 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end) mmu_cr4_features = read_cr4(); __flush_tlb_all(); - reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT); + if (!after_bootmem) + reserve_early(table_start << PAGE_SHIFT, + table_end << PAGE_SHIFT, "PGTABLE"); } #ifndef CONFIG_NUMA @@ -440,49 +433,6 @@ void __init paging_init(void) #endif /* - * Unmap a kernel mapping if it exists. This is useful to avoid - * prefetches from the CPU leading to inconsistent cache lines. - * address and size must be aligned to 2MB boundaries. - * Does nothing when the mapping doesn't exist. - */ -void __init clear_kernel_mapping(unsigned long address, unsigned long size) -{ - unsigned long end = address + size; - - BUG_ON(address & ~LARGE_PAGE_MASK); - BUG_ON(size & ~LARGE_PAGE_MASK); - - for (; address < end; address += LARGE_PAGE_SIZE) { - pgd_t *pgd = pgd_offset_k(address); - pud_t *pud; - pmd_t *pmd; - - if (pgd_none(*pgd)) - continue; - - pud = pud_offset(pgd, address); - if (pud_none(*pud)) - continue; - - pmd = pmd_offset(pud, address); - if (!pmd || pmd_none(*pmd)) - continue; - - if (!(pmd_val(*pmd) & _PAGE_PSE)) { - /* - * Could handle this, but it should not happen - * currently: - */ - printk(KERN_ERR "clear_kernel_mapping: " - "mapping has been split. will leak memory\n"); - pmd_ERROR(*pmd); - } - set_pmd(pmd, __pmd(0)); - } - __flush_tlb_all(); -} - -/* * Memory hotplug specific functions */ void online_page(struct page *page) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index ed795721ca8e..ee6648fe6b15 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -70,23 +70,11 @@ int page_is_ram(unsigned long pagenr) * Fix up the linear direct mapping of the kernel to avoid cache attribute * conflicts. */ -static int ioremap_change_attr(unsigned long paddr, unsigned long size, +static int ioremap_change_attr(unsigned long vaddr, unsigned long size, enum ioremap_mode mode) { - unsigned long vaddr = (unsigned long)__va(paddr); unsigned long nrpages = size >> PAGE_SHIFT; - int err, level; - - /* No change for pages after the last mapping */ - if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT)) - return 0; - - /* - * If there is no identity map for this address, - * change_page_attr_addr is unnecessary - */ - if (!lookup_address(vaddr, &level)) - return 0; + int err; switch (mode) { case IOR_MODE_UNCACHED: @@ -113,9 +101,8 @@ static int ioremap_change_attr(unsigned long paddr, unsigned long size, static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, enum ioremap_mode mode) { - void __iomem *addr; + unsigned long pfn, offset, last_addr, vaddr; struct vm_struct *area; - unsigned long offset, last_addr; pgprot_t prot; /* Don't allow wraparound or zero size */ @@ -132,9 +119,10 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, /* * Don't allow anybody to remap normal RAM that we're using.. */ - for (offset = phys_addr >> PAGE_SHIFT; offset < max_pfn_mapped && - (offset << PAGE_SHIFT) < last_addr; offset++) { - if (page_is_ram(offset)) + for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped && + (pfn << PAGE_SHIFT) < last_addr; pfn++) { + if (page_is_ram(pfn) && pfn_valid(pfn) && + !PageReserved(pfn_to_page(pfn))) return NULL; } @@ -162,19 +150,18 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, if (!area) return NULL; area->phys_addr = phys_addr; - addr = (void __iomem *) area->addr; - if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size, - phys_addr, prot)) { - remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr)); + vaddr = (unsigned long) area->addr; + if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) { + remove_vm_area((void *)(vaddr & PAGE_MASK)); return NULL; } - if (ioremap_change_attr(phys_addr, size, mode) < 0) { - vunmap(addr); + if (ioremap_change_attr(vaddr, size, mode) < 0) { + vunmap(area->addr); return NULL; } - return (void __iomem *) (offset + (char __iomem *)addr); + return (void __iomem *) (vaddr + offset); } /** @@ -253,9 +240,6 @@ void iounmap(volatile void __iomem *addr) return; } - /* Reset the direct mapping. Can block */ - ioremap_change_attr(p->phys_addr, p->size, IOR_MODE_CACHED); - /* Finally remove it */ o = remove_vm_area((void *)addr); BUG_ON(p != o || o == NULL); @@ -340,7 +324,7 @@ void __init early_ioremap_reset(void) for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) { addr = fix_to_virt(idx); pte = early_ioremap_pte(addr); - if (!*pte & _PAGE_PRESENT) { + if (*pte & _PAGE_PRESENT) { phys = *pte & PAGE_MASK; set_fixmap(idx, phys); } diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index dc3b1f7e1451..5a02bf4c91ec 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -84,26 +84,24 @@ static int __init populate_memnodemap(const struct bootnode *nodes, static int __init allocate_cachealigned_memnodemap(void) { - unsigned long pad, pad_addr; + unsigned long addr; memnodemap = memnode.embedded_map; if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map)) return 0; - pad = L1_CACHE_BYTES - 1; - pad_addr = 0x8000; - nodemap_size = pad + sizeof(s16) * memnodemapsize; - nodemap_addr = find_e820_area(pad_addr, end_pfn<<PAGE_SHIFT, - nodemap_size); + addr = 0x8000; + nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES); + nodemap_addr = find_e820_area(addr, end_pfn<<PAGE_SHIFT, + nodemap_size, L1_CACHE_BYTES); if (nodemap_addr == -1UL) { printk(KERN_ERR "NUMA: Unable to allocate Memory to Node hash map\n"); nodemap_addr = nodemap_size = 0; return -1; } - pad_addr = (nodemap_addr + pad) & ~pad; - memnodemap = phys_to_virt(pad_addr); - reserve_early(nodemap_addr, nodemap_addr + nodemap_size); + memnodemap = phys_to_virt(nodemap_addr); + reserve_early(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP"); printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n", nodemap_addr, nodemap_addr + nodemap_size); @@ -164,15 +162,16 @@ int early_pfn_to_nid(unsigned long pfn) } static void * __init early_node_mem(int nodeid, unsigned long start, - unsigned long end, unsigned long size) + unsigned long end, unsigned long size, + unsigned long align) { - unsigned long mem = find_e820_area(start, end, size); + unsigned long mem = find_e820_area(start, end, size, align); void *ptr; if (mem != -1L) return __va(mem); - ptr = __alloc_bootmem_nopanic(size, - SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)); + + ptr = __alloc_bootmem_nopanic(size, align, __pa(MAX_DMA_ADDRESS)); if (ptr == NULL) { printk(KERN_ERR "Cannot find %lu bytes in node %d\n", size, nodeid); @@ -198,10 +197,13 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, start_pfn = start >> PAGE_SHIFT; end_pfn = end >> PAGE_SHIFT; - node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size); + node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size, + SMP_CACHE_BYTES); if (node_data[nodeid] == NULL) return; nodedata_phys = __pa(node_data[nodeid]); + printk(KERN_INFO " NODE_DATA [%016lx - %016lx]\n", nodedata_phys, + nodedata_phys + pgdat_size - 1); memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t)); NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid]; @@ -211,8 +213,12 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, /* Find a place for the bootmem map */ bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn); bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE); + /* + * SMP_CAHCE_BYTES could be enough, but init_bootmem_node like + * to use that to align to PAGE_SIZE + */ bootmap = early_node_mem(nodeid, bootmap_start, end, - bootmap_pages<<PAGE_SHIFT); + bootmap_pages<<PAGE_SHIFT, PAGE_SIZE); if (bootmap == NULL) { if (nodedata_phys < start || nodedata_phys >= end) free_bootmem((unsigned long)node_data[nodeid], @@ -221,12 +227,15 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, return; } bootmap_start = __pa(bootmap); - Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages); bootmap_size = init_bootmem_node(NODE_DATA(nodeid), bootmap_start >> PAGE_SHIFT, start_pfn, end_pfn); + printk(KERN_INFO " bootmap [%016lx - %016lx] pages %lx\n", + bootmap_start, bootmap_start + bootmap_size - 1, + bootmap_pages); + free_bootmem_with_active_regions(nodeid, end); reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size); diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index 06353d43f72e..398f3a578dde 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -42,7 +42,7 @@ static __init int print_split(struct split_state *s) s->max_exec = 0; for (i = 0; i < max_pfn_mapped; ) { unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT); - int level; + unsigned int level; pte_t *pte; pte = lookup_address(addr, &level); @@ -106,7 +106,7 @@ static __init int exercise_pageattr(void) unsigned long *bm; pte_t *pte, pte0; int failed = 0; - int level; + unsigned int level; int i, k; int err; @@ -137,7 +137,8 @@ static __init int exercise_pageattr(void) for (k = 0; k < len[i]; k++) { pte = lookup_address(addr[i] + k*PAGE_SIZE, &level); - if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) { + if (!pte || pgprot_val(pte_pgprot(*pte)) == 0 || + !(pte_val(*pte) & _PAGE_PRESENT)) { addr[i] = 0; break; } diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 1cc6607eacb0..16ce841f08d6 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -16,6 +16,17 @@ #include <asm/uaccess.h> #include <asm/pgalloc.h> +/* + * The current flushing context - we pass it instead of 5 arguments: + */ +struct cpa_data { + unsigned long vaddr; + pgprot_t mask_set; + pgprot_t mask_clr; + int numpages; + int flushtlb; +}; + static inline int within(unsigned long addr, unsigned long start, unsigned long end) { @@ -52,21 +63,23 @@ void clflush_cache_range(void *vaddr, unsigned int size) static void __cpa_flush_all(void *arg) { + unsigned long cache = (unsigned long)arg; + /* * Flush all to work around Errata in early athlons regarding * large page flushing. */ __flush_tlb_all(); - if (boot_cpu_data.x86_model >= 4) + if (cache && boot_cpu_data.x86_model >= 4) wbinvd(); } -static void cpa_flush_all(void) +static void cpa_flush_all(unsigned long cache) { BUG_ON(irqs_disabled()); - on_each_cpu(__cpa_flush_all, NULL, 1, 1); + on_each_cpu(__cpa_flush_all, (void *) cache, 1, 1); } static void __cpa_flush_range(void *arg) @@ -79,7 +92,7 @@ static void __cpa_flush_range(void *arg) __flush_tlb_all(); } -static void cpa_flush_range(unsigned long start, int numpages) +static void cpa_flush_range(unsigned long start, int numpages, int cache) { unsigned int i, level; unsigned long addr; @@ -89,6 +102,9 @@ static void cpa_flush_range(unsigned long start, int numpages) on_each_cpu(__cpa_flush_range, NULL, 1, 1); + if (!cache) + return; + /* * We only need to flush on one CPU, * clflush is a MESI-coherent instruction that @@ -101,11 +117,27 @@ static void cpa_flush_range(unsigned long start, int numpages) /* * Only flush present addresses: */ - if (pte && pte_present(*pte)) + if (pte && (pte_val(*pte) & _PAGE_PRESENT)) clflush_cache_range((void *) addr, PAGE_SIZE); } } +#define HIGH_MAP_START __START_KERNEL_map +#define HIGH_MAP_END (__START_KERNEL_map + KERNEL_TEXT_SIZE) + + +/* + * Converts a virtual address to a X86-64 highmap address + */ +static unsigned long virt_to_highmap(void *address) +{ +#ifdef CONFIG_X86_64 + return __pa((unsigned long)address) + HIGH_MAP_START - phys_base; +#else + return (unsigned long)address; +#endif +} + /* * Certain areas of memory on x86 require very specific protection flags, * for example the BIOS area or kernel text. Callers don't always get this @@ -129,12 +161,24 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address) */ if (within(address, (unsigned long)_text, (unsigned long)_etext)) pgprot_val(forbidden) |= _PAGE_NX; + /* + * Do the same for the x86-64 high kernel mapping + */ + if (within(address, virt_to_highmap(_text), virt_to_highmap(_etext))) + pgprot_val(forbidden) |= _PAGE_NX; + #ifdef CONFIG_DEBUG_RODATA /* The .rodata section needs to be read-only */ if (within(address, (unsigned long)__start_rodata, (unsigned long)__end_rodata)) pgprot_val(forbidden) |= _PAGE_RW; + /* + * Do the same for the x86-64 high kernel mapping + */ + if (within(address, virt_to_highmap(__start_rodata), + virt_to_highmap(__end_rodata))) + pgprot_val(forbidden) |= _PAGE_RW; #endif prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden)); @@ -142,6 +186,14 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address) return prot; } +/* + * Lookup the page table entry for a virtual address. Return a pointer + * to the entry and the level of the mapping. + * + * Note: We return pud and pmd either when the entry is marked large + * or when the present bit is not set. Otherwise we would return a + * pointer to a nonexisting mapping. + */ pte_t *lookup_address(unsigned long address, int *level) { pgd_t *pgd = pgd_offset_k(address); @@ -152,21 +204,31 @@ pte_t *lookup_address(unsigned long address, int *level) if (pgd_none(*pgd)) return NULL; + pud = pud_offset(pgd, address); if (pud_none(*pud)) return NULL; + + *level = PG_LEVEL_1G; + if (pud_large(*pud) || !pud_present(*pud)) + return (pte_t *)pud; + pmd = pmd_offset(pud, address); if (pmd_none(*pmd)) return NULL; *level = PG_LEVEL_2M; - if (pmd_large(*pmd)) + if (pmd_large(*pmd) || !pmd_present(*pmd)) return (pte_t *)pmd; *level = PG_LEVEL_4K; + return pte_offset_kernel(pmd, address); } +/* + * Set the new pmd in all the pgds we know about: + */ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) { /* change init_mm */ @@ -189,18 +251,114 @@ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) #endif } +static int +try_preserve_large_page(pte_t *kpte, unsigned long address, + struct cpa_data *cpa) +{ + unsigned long nextpage_addr, numpages, pmask, psize, flags; + pte_t new_pte, old_pte, *tmp; + pgprot_t old_prot, new_prot; + int level, do_split = 1; + + /* + * An Athlon 64 X2 showed hard hangs if we tried to preserve + * largepages and changed the PSE entry from RW to RO. + * + * As AMD CPUs have a long series of erratas in this area, + * (and none of the known ones seem to explain this hang), + * disable this code until the hang can be debugged: + */ + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + return 1; + + spin_lock_irqsave(&pgd_lock, flags); + /* + * Check for races, another CPU might have split this page + * up already: + */ + tmp = lookup_address(address, &level); + if (tmp != kpte) + goto out_unlock; + + switch (level) { + case PG_LEVEL_2M: + psize = PMD_PAGE_SIZE; + pmask = PMD_PAGE_MASK; + break; +#ifdef CONFIG_X86_64 + case PG_LEVEL_1G: + psize = PMD_PAGE_SIZE; + pmask = PMD_PAGE_MASK; + break; +#endif + default: + do_split = -EINVAL; + goto out_unlock; + } + + /* + * Calculate the number of pages, which fit into this large + * page starting at address: + */ + nextpage_addr = (address + psize) & pmask; + numpages = (nextpage_addr - address) >> PAGE_SHIFT; + if (numpages < cpa->numpages) + cpa->numpages = numpages; + + /* + * We are safe now. Check whether the new pgprot is the same: + */ + old_pte = *kpte; + old_prot = new_prot = pte_pgprot(old_pte); + + pgprot_val(new_prot) &= ~pgprot_val(cpa->mask_clr); + pgprot_val(new_prot) |= pgprot_val(cpa->mask_set); + new_prot = static_protections(new_prot, address); + + /* + * If there are no changes, return. maxpages has been updated + * above: + */ + if (pgprot_val(new_prot) == pgprot_val(old_prot)) { + do_split = 0; + goto out_unlock; + } + + /* + * We need to change the attributes. Check, whether we can + * change the large page in one go. We request a split, when + * the address is not aligned and the number of pages is + * smaller than the number of pages in the large page. Note + * that we limited the number of possible pages already to + * the number of pages in the large page. + */ + if (address == (nextpage_addr - psize) && cpa->numpages == numpages) { + /* + * The address is aligned and the number of pages + * covers the full page. + */ + new_pte = pfn_pte(pte_pfn(old_pte), canon_pgprot(new_prot)); + __set_pmd_pte(kpte, address, new_pte); + cpa->flushtlb = 1; + do_split = 0; + } + +out_unlock: + spin_unlock_irqrestore(&pgd_lock, flags); + + return do_split; +} + static int split_large_page(pte_t *kpte, unsigned long address) { - pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte)); + unsigned long flags, pfn, pfninc = 1; gfp_t gfp_flags = GFP_KERNEL; - unsigned long flags; - unsigned long addr; + unsigned int i, level; pte_t *pbase, *tmp; + pgprot_t ref_prot; struct page *base; - unsigned int i, level; #ifdef CONFIG_DEBUG_PAGEALLOC - gfp_flags = __GFP_HIGH | __GFP_NOFAIL | __GFP_NOWARN; gfp_flags = GFP_ATOMIC | __GFP_NOWARN; #endif base = alloc_pages(gfp_flags, 0); @@ -213,30 +371,41 @@ static int split_large_page(pte_t *kpte, unsigned long address) * up for us already: */ tmp = lookup_address(address, &level); - if (tmp != kpte) { - WARN_ON_ONCE(1); + if (tmp != kpte) goto out_unlock; - } - address = __pa(address); - addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); #ifdef CONFIG_X86_32 paravirt_alloc_pt(&init_mm, page_to_pfn(base)); #endif + ref_prot = pte_pgprot(pte_clrhuge(*kpte)); - pgprot_val(ref_prot) &= ~_PAGE_NX; - for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) - set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot)); +#ifdef CONFIG_X86_64 + if (level == PG_LEVEL_1G) { + pfninc = PMD_PAGE_SIZE >> PAGE_SHIFT; + pgprot_val(ref_prot) |= _PAGE_PSE; + } +#endif /* - * Install the new, split up pagetable. Important detail here: + * Get the target pfn from the original entry: + */ + pfn = pte_pfn(*kpte); + for (i = 0; i < PTRS_PER_PTE; i++, pfn += pfninc) + set_pte(&pbase[i], pfn_pte(pfn, ref_prot)); + + /* + * Install the new, split up pagetable. Important details here: * * On Intel the NX bit of all levels must be cleared to make a * page executable. See section 4.13.2 of Intel 64 and IA-32 * Architectures Software Developer's Manual). + * + * Mark the entry present. The current mapping might be + * set to not present, which we preserved above. */ ref_prot = pte_pgprot(pte_mkexec(pte_clrhuge(*kpte))); + pgprot_val(ref_prot) |= _PAGE_PRESENT; __set_pmd_pte(kpte, address, mk_pte(base, ref_prot)); base = NULL; @@ -249,18 +418,12 @@ out_unlock: return 0; } -static int -__change_page_attr(unsigned long address, unsigned long pfn, - pgprot_t mask_set, pgprot_t mask_clr) +static int __change_page_attr(unsigned long address, struct cpa_data *cpa) { + int level, do_split, err; struct page *kpte_page; - int level, err = 0; pte_t *kpte; -#ifdef CONFIG_X86_32 - BUG_ON(pfn > max_low_pfn); -#endif - repeat: kpte = lookup_address(address, &level); if (!kpte) @@ -271,23 +434,62 @@ repeat: BUG_ON(PageCompound(kpte_page)); if (level == PG_LEVEL_4K) { - pgprot_t new_prot = pte_pgprot(*kpte); pte_t new_pte, old_pte = *kpte; + pgprot_t new_prot = pte_pgprot(old_pte); + + if(!pte_val(old_pte)) { + printk(KERN_WARNING "CPA: called for zero pte. " + "vaddr = %lx cpa->vaddr = %lx\n", address, + cpa->vaddr); + WARN_ON(1); + return -EINVAL; + } - pgprot_val(new_prot) &= ~pgprot_val(mask_clr); - pgprot_val(new_prot) |= pgprot_val(mask_set); + pgprot_val(new_prot) &= ~pgprot_val(cpa->mask_clr); + pgprot_val(new_prot) |= pgprot_val(cpa->mask_set); new_prot = static_protections(new_prot, address); - new_pte = pfn_pte(pfn, canon_pgprot(new_prot)); - BUG_ON(pte_pfn(new_pte) != pte_pfn(old_pte)); + /* + * We need to keep the pfn from the existing PTE, + * after all we're only going to change it's attributes + * not the memory it points to + */ + new_pte = pfn_pte(pte_pfn(old_pte), canon_pgprot(new_prot)); + + /* + * Do we really change anything ? + */ + if (pte_val(old_pte) != pte_val(new_pte)) { + set_pte_atomic(kpte, new_pte); + cpa->flushtlb = 1; + } + cpa->numpages = 1; + return 0; + } + + /* + * Check, whether we can keep the large page intact + * and just change the pte: + */ + do_split = try_preserve_large_page(kpte, address, cpa); + /* + * When the range fits into the existing large page, + * return. cp->numpages and cpa->tlbflush have been updated in + * try_large_page: + */ + if (do_split <= 0) + return do_split; - set_pte_atomic(kpte, new_pte); - } else { - err = split_large_page(kpte, address); - if (!err) - goto repeat; + /* + * We have to split the large page: + */ + err = split_large_page(kpte, address); + if (!err) { + cpa->flushtlb = 1; + goto repeat; } + return err; } @@ -304,19 +506,14 @@ repeat: * * Modules and drivers should use the set_memory_* APIs instead. */ - -#define HIGH_MAP_START __START_KERNEL_map -#define HIGH_MAP_END (__START_KERNEL_map + KERNEL_TEXT_SIZE) - -static int -change_page_attr_addr(unsigned long address, pgprot_t mask_set, - pgprot_t mask_clr) +static int change_page_attr_addr(struct cpa_data *cpa) { - unsigned long phys_addr = __pa(address); - unsigned long pfn = phys_addr >> PAGE_SHIFT; int err; + unsigned long address = cpa->vaddr; #ifdef CONFIG_X86_64 + unsigned long phys_addr = __pa(address); + /* * If we are inside the high mapped kernel range, then we * fixup the low mapping first. __va() returns the virtual @@ -326,7 +523,7 @@ change_page_attr_addr(unsigned long address, pgprot_t mask_set, address = (unsigned long) __va(phys_addr); #endif - err = __change_page_attr(address, pfn, mask_set, mask_clr); + err = __change_page_attr(address, cpa); if (err) return err; @@ -339,42 +536,89 @@ change_page_attr_addr(unsigned long address, pgprot_t mask_set, /* * Calc the high mapping address. See __phys_addr() * for the non obvious details. + * + * Note that NX and other required permissions are + * checked in static_protections(). */ address = phys_addr + HIGH_MAP_START - phys_base; - /* Make sure the kernel mappings stay executable */ - pgprot_val(mask_clr) |= _PAGE_NX; /* * Our high aliases are imprecise, because we check * everything between 0 and KERNEL_TEXT_SIZE, so do * not propagate lookup failures back to users: */ - __change_page_attr(address, pfn, mask_set, mask_clr); + __change_page_attr(address, cpa); } #endif return err; } -static int __change_page_attr_set_clr(unsigned long addr, int numpages, - pgprot_t mask_set, pgprot_t mask_clr) +static int __change_page_attr_set_clr(struct cpa_data *cpa) { - unsigned int i; - int ret; + int ret, numpages = cpa->numpages; - for (i = 0; i < numpages ; i++, addr += PAGE_SIZE) { - ret = change_page_attr_addr(addr, mask_set, mask_clr); + while (numpages) { + /* + * Store the remaining nr of pages for the large page + * preservation check. + */ + cpa->numpages = numpages; + ret = change_page_attr_addr(cpa); if (ret) return ret; - } + /* + * Adjust the number of pages with the result of the + * CPA operation. Either a large page has been + * preserved or a single page update happened. + */ + BUG_ON(cpa->numpages > numpages); + numpages -= cpa->numpages; + cpa->vaddr += cpa->numpages * PAGE_SIZE; + } return 0; } +static inline int cache_attr(pgprot_t attr) +{ + return pgprot_val(attr) & + (_PAGE_PAT | _PAGE_PAT_LARGE | _PAGE_PWT | _PAGE_PCD); +} + static int change_page_attr_set_clr(unsigned long addr, int numpages, pgprot_t mask_set, pgprot_t mask_clr) { - int ret = __change_page_attr_set_clr(addr, numpages, mask_set, - mask_clr); + struct cpa_data cpa; + int ret, cache; + + /* + * Check, if we are requested to change a not supported + * feature: + */ + mask_set = canon_pgprot(mask_set); + mask_clr = canon_pgprot(mask_clr); + if (!pgprot_val(mask_set) && !pgprot_val(mask_clr)) + return 0; + + cpa.vaddr = addr; + cpa.numpages = numpages; + cpa.mask_set = mask_set; + cpa.mask_clr = mask_clr; + cpa.flushtlb = 0; + + ret = __change_page_attr_set_clr(&cpa); + + /* + * Check whether we really changed something: + */ + if (!cpa.flushtlb) + return ret; + + /* + * No need to flush, when we did not set any of the caching + * attributes: + */ + cache = cache_attr(mask_set); /* * On success we use clflush, when the CPU supports it to @@ -383,9 +627,9 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages, * wbindv): */ if (!ret && cpu_has_clflush) - cpa_flush_range(addr, numpages); + cpa_flush_range(addr, numpages, cache); else - cpa_flush_all(); + cpa_flush_all(cache); return ret; } @@ -399,8 +643,7 @@ static inline int change_page_attr_set(unsigned long addr, int numpages, static inline int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t mask) { - return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask); - + return change_page_attr_set_clr(addr, numpages, __pgprot(0), mask); } int set_memory_uc(unsigned long addr, int numpages) @@ -490,37 +733,26 @@ int set_pages_rw(struct page *page, int numpages) return set_memory_rw(addr, numpages); } - -#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_CPA_DEBUG) -static inline int __change_page_attr_set(unsigned long addr, int numpages, - pgprot_t mask) -{ - return __change_page_attr_set_clr(addr, numpages, mask, __pgprot(0)); -} - -static inline int __change_page_attr_clear(unsigned long addr, int numpages, - pgprot_t mask) -{ - return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask); -} -#endif - #ifdef CONFIG_DEBUG_PAGEALLOC static int __set_pages_p(struct page *page, int numpages) { - unsigned long addr = (unsigned long)page_address(page); + struct cpa_data cpa = { .vaddr = (unsigned long) page_address(page), + .numpages = numpages, + .mask_set = __pgprot(_PAGE_PRESENT | _PAGE_RW), + .mask_clr = __pgprot(0)}; - return __change_page_attr_set(addr, numpages, - __pgprot(_PAGE_PRESENT | _PAGE_RW)); + return __change_page_attr_set_clr(&cpa); } static int __set_pages_np(struct page *page, int numpages) { - unsigned long addr = (unsigned long)page_address(page); + struct cpa_data cpa = { .vaddr = (unsigned long) page_address(page), + .numpages = numpages, + .mask_set = __pgprot(0), + .mask_clr = __pgprot(_PAGE_PRESENT | _PAGE_RW)}; - return __change_page_attr_clear(addr, numpages, - __pgprot(_PAGE_PRESENT)); + return __change_page_attr_set_clr(&cpa); } void kernel_map_pages(struct page *page, int numpages, int enable) diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c index 2ae5999a795a..6c1914622a88 100644 --- a/arch/x86/mm/pgtable_32.c +++ b/arch/x86/mm/pgtable_32.c @@ -219,50 +219,39 @@ static inline void pgd_list_del(pgd_t *pgd) list_del(&page->lru); } +#define UNSHARED_PTRS_PER_PGD \ + (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD) - -#if (PTRS_PER_PMD == 1) -/* Non-PAE pgd constructor */ -static void pgd_ctor(void *pgd) +static void pgd_ctor(void *p) { + pgd_t *pgd = p; unsigned long flags; - /* !PAE, no pagetable sharing */ + /* Clear usermode parts of PGD */ memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t)); spin_lock_irqsave(&pgd_lock, flags); - /* must happen under lock */ - clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD, - swapper_pg_dir + USER_PTRS_PER_PGD, - KERNEL_PGD_PTRS); - paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT, - __pa(swapper_pg_dir) >> PAGE_SHIFT, - USER_PTRS_PER_PGD, - KERNEL_PGD_PTRS); - pgd_list_add(pgd); - spin_unlock_irqrestore(&pgd_lock, flags); -} -#else /* PTRS_PER_PMD > 1 */ -/* PAE pgd constructor */ -static void pgd_ctor(void *pgd) -{ - /* PAE, kernel PMD may be shared */ - - if (SHARED_KERNEL_PMD) { - clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD, + /* If the pgd points to a shared pagetable level (either the + ptes in non-PAE, or shared PMD in PAE), then just copy the + references from swapper_pg_dir. */ + if (PAGETABLE_LEVELS == 2 || + (PAGETABLE_LEVELS == 3 && SHARED_KERNEL_PMD)) { + clone_pgd_range(pgd + USER_PTRS_PER_PGD, swapper_pg_dir + USER_PTRS_PER_PGD, KERNEL_PGD_PTRS); - } else { - unsigned long flags; + paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT, + __pa(swapper_pg_dir) >> PAGE_SHIFT, + USER_PTRS_PER_PGD, + KERNEL_PGD_PTRS); + } - memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t)); - spin_lock_irqsave(&pgd_lock, flags); + /* list required to sync kernel mapping updates */ + if (!SHARED_KERNEL_PMD) pgd_list_add(pgd); - spin_unlock_irqrestore(&pgd_lock, flags); - } + + spin_unlock_irqrestore(&pgd_lock, flags); } -#endif /* PTRS_PER_PMD */ static void pgd_dtor(void *pgd) { @@ -276,9 +265,6 @@ static void pgd_dtor(void *pgd) spin_unlock_irqrestore(&pgd_lock, flags); } -#define UNSHARED_PTRS_PER_PGD \ - (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD) - #ifdef CONFIG_X86_PAE /* * Mop up any pmd pages which may still be attached to the pgd. @@ -286,7 +272,7 @@ static void pgd_dtor(void *pgd) * preallocate which never got a corresponding vma will need to be * freed manually. */ -static void pgd_mop_up_pmds(pgd_t *pgdp) +static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) { int i; @@ -299,7 +285,7 @@ static void pgd_mop_up_pmds(pgd_t *pgdp) pgdp[i] = native_make_pgd(0); paravirt_release_pd(pgd_val(pgd) >> PAGE_SHIFT); - pmd_free(pmd); + pmd_free(mm, pmd); } } } @@ -327,7 +313,7 @@ static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd) pmd_t *pmd = pmd_alloc_one(mm, addr); if (!pmd) { - pgd_mop_up_pmds(pgd); + pgd_mop_up_pmds(mm, pgd); return 0; } @@ -347,7 +333,7 @@ static int pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd) return 1; } -static void pgd_mop_up_pmds(pgd_t *pgd) +static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) { } #endif /* CONFIG_X86_PAE */ @@ -366,9 +352,9 @@ pgd_t *pgd_alloc(struct mm_struct *mm) return pgd; } -void pgd_free(pgd_t *pgd) +void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - pgd_mop_up_pmds(pgd); + pgd_mop_up_pmds(mm, pgd); quicklist_free(0, pgd_dtor, pgd); } @@ -376,3 +362,19 @@ void check_pgt_cache(void) { quicklist_trim(0, pgd_dtor, 25, 16); } + +void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte) +{ + paravirt_release_pt(page_to_pfn(pte)); + tlb_remove_page(tlb, pte); +} + +#ifdef CONFIG_X86_PAE + +void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) +{ + paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); + tlb_remove_page(tlb, virt_to_page(pmd)); +} + +#endif diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index cb63007e20b2..74d30ff33c49 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -17,7 +17,7 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d) int pxb, reg; u8 busno, suba, subb; - printk(KERN_WARNING "PCI: Searching for i450NX host bridges on %s\n", pci_name(d)); + dev_warn(&d->dev, "Searching for i450NX host bridges\n"); reg = 0xd0; for(pxb = 0; pxb < 2; pxb++) { pci_read_config_byte(d, reg++, &busno); @@ -41,7 +41,7 @@ static void __devinit pci_fixup_i450gx(struct pci_dev *d) */ u8 busno; pci_read_config_byte(d, 0x4a, &busno); - printk(KERN_INFO "PCI: i440KX/GX host bridge %s: secondary bus %02x\n", pci_name(d), busno); + dev_info(&d->dev, "i440KX/GX host bridge; secondary bus %02x\n", busno); pci_scan_bus_with_sysdata(busno); pcibios_last_bus = -1; } @@ -55,7 +55,7 @@ static void __devinit pci_fixup_umc_ide(struct pci_dev *d) */ int i; - printk(KERN_WARNING "PCI: Fixing base address flags for device %s\n", pci_name(d)); + dev_warn(&d->dev, "Fixing base address flags\n"); for(i = 0; i < 4; i++) d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO; } @@ -68,7 +68,7 @@ static void __devinit pci_fixup_ncr53c810(struct pci_dev *d) * Fix class to be PCI_CLASS_STORAGE_SCSI */ if (!d->class) { - printk(KERN_WARNING "PCI: fixing NCR 53C810 class code for %s\n", pci_name(d)); + dev_warn(&d->dev, "Fixing NCR 53C810 class code\n"); d->class = PCI_CLASS_STORAGE_SCSI << 8; } } @@ -80,7 +80,7 @@ static void __devinit pci_fixup_latency(struct pci_dev *d) * SiS 5597 and 5598 chipsets require latency timer set to * at most 32 to avoid lockups. */ - DBG("PCI: Setting max latency to 32\n"); + dev_dbg(&d->dev, "Setting max latency to 32\n"); pcibios_max_latency = 32; } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, pci_fixup_latency); @@ -138,7 +138,7 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d) pci_read_config_byte(d, where, &v); if (v & ~mask) { - printk(KERN_WARNING "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \ + dev_warn(&d->dev, "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \ d->device, d->revision, where, v, mask, v & mask); v &= mask; pci_write_config_byte(d, where, v); @@ -200,7 +200,7 @@ static void pci_fixup_nforce2(struct pci_dev *dev) * Apply fixup if needed, but don't touch disconnect state */ if ((val & 0x00FF0000) != 0x00010000) { - printk(KERN_WARNING "PCI: nForce2 C1 Halt Disconnect fixup\n"); + dev_warn(&dev->dev, "nForce2 C1 Halt Disconnect fixup\n"); pci_write_config_dword(dev, 0x6c, (val & 0xFF00FFFF) | 0x00010000); } } @@ -348,7 +348,7 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev) pci_read_config_word(pdev, PCI_COMMAND, &config); if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; - printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev)); + dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); } } DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); @@ -388,11 +388,11 @@ static void __devinit pci_fixup_msi_k8t_onboard_sound(struct pci_dev *dev) /* verify the change for status output */ pci_read_config_byte(dev, 0x50, &val); if (val & 0x40) - printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, " + dev_info(&dev->dev, "Detected MSI K8T Neo2-FIR; " "can't enable onboard soundcard!\n"); else - printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, " - "enabled onboard soundcard.\n"); + dev_info(&dev->dev, "Detected MSI K8T Neo2-FIR; " + "enabled onboard soundcard\n"); } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 42ba0e2da1a0..103b9dff1213 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -72,7 +72,7 @@ pcibios_align_resource(void *data, struct resource *res, } } } - +EXPORT_SYMBOL(pcibios_align_resource); /* * Handle resources of PCI devices. If the world were perfect, we could diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c index f5f165f69e0c..55270c26237c 100644 --- a/arch/x86/pci/numa.c +++ b/arch/x86/pci/numa.c @@ -5,36 +5,62 @@ #include <linux/pci.h> #include <linux/init.h> #include <linux/nodemask.h> +#include <mach_apic.h> #include "pci.h" +#define XQUAD_PORTIO_BASE 0xfe400000 +#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */ + #define BUS2QUAD(global) (mp_bus_id_to_node[global]) #define BUS2LOCAL(global) (mp_bus_id_to_local[global]) #define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local]) +extern void *xquad_portio; /* Where the IO area was mapped */ +#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port) + #define PCI_CONF1_MQ_ADDRESS(bus, devfn, reg) \ (0x80000000 | (BUS2LOCAL(bus) << 16) | (devfn << 8) | (reg & ~3)) +static void write_cf8(unsigned bus, unsigned devfn, unsigned reg) +{ + unsigned val = PCI_CONF1_MQ_ADDRESS(bus, devfn, reg); + if (xquad_portio) + writel(val, XQUAD_PORT_ADDR(0xcf8, BUS2QUAD(bus))); + else + outl(val, 0xCF8); +} + static int pci_conf1_mq_read(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 *value) { unsigned long flags; + void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); if (!value || (bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) return -EINVAL; spin_lock_irqsave(&pci_config_lock, flags); - outl_quad(PCI_CONF1_MQ_ADDRESS(bus, devfn, reg), 0xCF8, BUS2QUAD(bus)); + write_cf8(bus, devfn, reg); switch (len) { case 1: - *value = inb_quad(0xCFC + (reg & 3), BUS2QUAD(bus)); + if (xquad_portio) + *value = readb(adr + (reg & 3)); + else + *value = inb(0xCFC + (reg & 3)); break; case 2: - *value = inw_quad(0xCFC + (reg & 2), BUS2QUAD(bus)); + if (xquad_portio) + *value = readw(adr + (reg & 2)); + else + *value = inw(0xCFC + (reg & 2)); break; case 4: - *value = inl_quad(0xCFC, BUS2QUAD(bus)); + if (xquad_portio) + *value = readl(adr); + else + *value = inl(0xCFC); break; } @@ -47,23 +73,33 @@ static int pci_conf1_mq_write(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 value) { unsigned long flags; + void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); if ((bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) return -EINVAL; spin_lock_irqsave(&pci_config_lock, flags); - outl_quad(PCI_CONF1_MQ_ADDRESS(bus, devfn, reg), 0xCF8, BUS2QUAD(bus)); + write_cf8(bus, devfn, reg); switch (len) { case 1: - outb_quad((u8)value, 0xCFC + (reg & 3), BUS2QUAD(bus)); + if (xquad_portio) + writeb(value, adr + (reg & 3)); + else + outb((u8)value, 0xCFC + (reg & 3)); break; case 2: - outw_quad((u16)value, 0xCFC + (reg & 2), BUS2QUAD(bus)); + if (xquad_portio) + writew(value, adr + (reg & 2)); + else + outw((u16)value, 0xCFC + (reg & 2)); break; case 4: - outl_quad((u32)value, 0xCFC, BUS2QUAD(bus)); + if (xquad_portio) + writel(value, adr + reg); + else + outl((u32)value, 0xCFC); break; } diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index d3cb3d6af4c8..5d5546ce88fe 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -174,11 +174,6 @@ config PCI your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or VESA. If you have PCI, say Y, otherwise N. - The PCI-HOWTO, available from - <http://www.linuxdoc.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't - source "drivers/pci/Kconfig" config HOTPLUG @@ -251,8 +246,6 @@ config EMBEDDED_RAMDISK_IMAGE provide one yourself. endmenu -source "kernel/Kconfig.instrumentation" - source "arch/xtensa/Kconfig.debug" source "security/Kconfig" |