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* m68k/atari: Hide RTC_PORT() macro from rtc-cmosGeert Uytterhoeven2013-12-081-5/+5
| | | | | | | | | Rename RTC_PORT() to ATARI_RTC_PORT(), as the rtc-cmos RTC driver uses the presence of this macro to enable support for the second NVRAM bank, which Atari doesn't have ("Unable to handle kernel access at virtual address 00ff8965"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/amiga,atari: Fix specifying multiple debug= parametersGeert Uytterhoeven2013-12-082-6/+18
| | | | | | | | | | | | | | | | | | | | | Since commit d6713b4091a99fa2af2fabdcd2f3fb97f32ecf2e ("m68k: early parameter support"), the user can specify multiple debug consoles using the "debug=" kernel command line parameter. However, as there's only a single struct console object, which is reused, it would actually register the same console object multiple times, causing the following warning: WARNING: CPU: 0 PID: 0 at kernel/printk/printk.c:2233 register_console+0x36/ console 'debug0' already registered Make sure to register the console object only once, to avoid the warning. Note that still only one console (the one corresponding to the last "debug=" parameter) will be active at the same time, as the .write() method of the already registered console object is overwritten by a subsequent "debug=" parameter. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/defconfig: Use ext4 for ext2/ext3 file systemsGeert Uytterhoeven2013-12-0812-48/+0
| | | | | | This reduces the kernel image size by ca. 160 KiB. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Add support to export bootinfo in procfsGeert Uytterhoeven2013-12-085-0/+102
| | | | | | | | | Add optional support to export the bootinfo used to boot the kernel in a "bootinfo" file in procfs. This is useful with kexec. This is based on the similar feature for ATAGS on ARM. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Add kexec supportGeert Uytterhoeven2013-12-086-0/+268
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/amiga: Provide mach_random_get_entropy()Geert Uytterhoeven2013-11-261-0/+10
| | | | | | | Use the beam position registers, which provide at least 17 bits of data changing at 1.79 MHz. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Add infrastructure for machine-specific random_get_entropy()Geert Uytterhoeven2013-11-262-0/+14
| | | | | | | | | | | | On m68k, get_cycles() (the default implementation for random_get_entropy()) always returns zero, providing no entropy for the random driver. Add a hook where platforms can provide their own implementation, and wire it up in the infrastructure provided by commit 61875f30daf60305712e25b209ef41ced2635bad ("random: allow architectures to optionally define random_get_entropy()"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/atari: Call paging_init() before nf_init()Geert Uytterhoeven2013-11-261-2/+2
| | | | | | | | | | | nf_init() uses virt_to_phys(), which depends on m68k_memoffset being set and module_fixup() having been called, but this is only done in paging_init(). Hence call paging_init() before nf_init(). This went unnoticed, as virt_to_phys() is a no-op on Atari, unless you start fiddling with the memory blocks in the bootinfo manually. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Remove superfluous inclusions of <asm/bootinfo.h>Geert Uytterhoeven2013-11-266-6/+0
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Use proper types (endianness/size) in <asm/bootinfo*.h>Geert Uytterhoeven2013-11-2616-98/+124
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move VME Board ID definition to <asm/bootinfo-vme.h>Geert Uytterhoeven2013-11-262-17/+23
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move Macintosh model definitions to <asm/bootinfo-mac.h>Geert Uytterhoeven2013-11-262-59/+63
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move HP300 model definitions to <asm/bootinfo-hp300.h>Geert Uytterhoeven2013-11-262-18/+27
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move Apollo model definitions to <asm/bootinfo-apollo.h>Geert Uytterhoeven2013-11-262-9/+14
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move Amiga model/chipset definitions to <asm/bootinfo-amiga.h>Geert Uytterhoeven2013-11-262-25/+33
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Move generic definitions to <asm/bootinfo.h>Geert Uytterhoeven2013-11-266-95/+85
| | | | | | | | | | | | Move generic definitions used by bootstraps to uapi/asm/bootinfo.h: - Machine types, - CPU, FPU, and MMU types, - struct mem_info. Keep a copy of struct mem_info for in-kernel use, and rename it to struct m68k_mem_info, as the exported one will be modified later. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/UAPI: Disintegrate arch/m68k/include/asm/bootinfo.hGeert Uytterhoeven2013-11-2620-213/+356
| | | | | | | Export the bootinfo definitions that are used by bootstrap loaders, and split them up in generic and platform-specific parts. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/vme: Remove unused mvme_bdid_ptrGeert Uytterhoeven2013-11-261-2/+0
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/mac: Move struct mac_booter_data to <asm/macintosh.h>Geert Uytterhoeven2013-11-263-41/+23
| | | | | | | | | | struct mac_booter_data is no longer part of the bootinfo API, hence move it from <asm/bootinfo.h> to <asm/macintosh.h>, dropping all unused fields in the process. Also remove the no longer used mac_booter_data pointer from head.S. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Drop remainings and API of BOOTINFO_COMPAT_1_0Geert Uytterhoeven2013-11-263-114/+0
| | | | | | | | | | Drop remainings and API for backwards compatibility with bootinfo interface version 1.0. This was used when booting a 2.1.x or newer kernel on Amiga, Atari, or Mac using a bootstrap for kernel 2.0.x. Everybody upgraded his bootstrap a long time ago, so this can go. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: head.S - Correct date and spellingGeert Uytterhoeven2013-11-261-1/+1
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: The bootinfo is located right after the kernelGeert Uytterhoeven2013-11-263-3/+3
| | | | | | | | Since the introduction of init sections (which are located after BSS), the bootinfo is no longer located right after the BSS, but after all kernel sections. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* zorro/UAPI: Use proper types (endianness/size) in <linux/zorro.h>Geert Uytterhoeven2013-11-262-7/+11
| | | | | | | | | Fix member definitions for non-native userspace handling: - All multi-byte values are big-endian, hence use __be*, - All pointers are 32-bit pointers under AmigaOS, but unused (except for cd_BoardAddr) under Linux, hence use __be32. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* zorro: ZTWO_VADDR() should return "void __iomem *"Geert Uytterhoeven2013-11-263-3/+3
| | | | | | | | | | | ZTWO_VADDR() converts from physical to virtual I/O addresses, so it should return "void __iomem *" instead of "unsigned long". This allows to drop several casts, but requires adding a few casts to accomodate legacy driver frameworks that store "unsigned long" I/O addresses. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* zorro: Do not allocate zorro_autocon[] staticallyGeert Uytterhoeven2013-11-262-5/+5
| | | | | | | | | | | | | | Currently the array of Zorro devices is allocated statically, wasting up to 4.5 KiB when running an Amiga or multi-platform kernel on a machine with no or a handful of Zorro expansion cards. Convert it to conditional dynamic memory allocation to fix this. amiga_parse_bootinfo() still needs to store some information about the detected Zorro devices, at a time even the bootmem allocator is not yet available. This is now handled using a much smaller array (typically less than 0.5 KiB), which is __initdata and thus freed later. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/setup: Use pr_*() and __func__ instead of plain printk()Geert Uytterhoeven2013-11-261-9/+10
| | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/defconfig: Make NFS_V4 modular instead of builtinGeert Uytterhoeven2013-11-2612-12/+12
| | | | | | | This reduces the kernel image size by ca. 100 KiB, while still allowing NFS root. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/mac: Fix comment about iop_*_present flags setup timingGeert Uytterhoeven2013-11-261-2/+2
| | | | | | This is no longer done from iop_init() Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k/sun3: Dynamically allocate the table to track IOMMU useGeert Uytterhoeven2013-11-261-2/+3
| | | | | | | | | | | | | | | As Sun 3 kernels cannot be multi-platform due to the different Sun 3 MMU type, it made sense to statically allocate the table to track IOMMU use. However, Sun 3x kernels can be multi-platform. Furthermore, Sun 3x uses a larger table than Sun 3 (8192 bytes instead of 512 bytes). Hence switch to dynamic allocation of this table using the bootmem allocator to avoid wasting 8192 bytes when not running on a Sun 3x. As this allocator returns zeroed memory, there's no need to explicitly initialize the table to zeroes. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* m68k: Mark functions only called from setup_arch() __initGeert Uytterhoeven2013-11-2612-21/+22
| | | | | | | Some functions that are only called (indirectly) from setup_arch() lack __init annotations. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2013-11-196-101/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq cleanups from Ingo Molnar: "This is a multi-arch cleanup series from Thomas Gleixner, which we kept to near the end of the merge window, to not interfere with architecture updates. This series (motivated by the -rt kernel) unifies more aspects of IRQ handling and generalizes PREEMPT_ACTIVE" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt: Make PREEMPT_ACTIVE generic sparc: Use preempt_schedule_irq ia64: Use preempt_schedule_irq m32r: Use preempt_schedule_irq hardirq: Make hardirq bits generic m68k: Simplify low level interrupt handling code genirq: Prevent spurious detection for unconditionally polled interrupts
| * preempt: Make PREEMPT_ACTIVE genericThomas Gleixner2013-11-131-2/+0
| | | | | | | | | | | | | | | | No point in having this bit defined by architecture. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de
| * hardirq: Make hardirq bits genericThomas Gleixner2013-11-131-11/+0
| | | | | | | | | | | | | | | | There is no reason for per arch hardirq bits. Make them all generic Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130917183628.534494408@linutronix.de
| * m68k: Simplify low level interrupt handling codeThomas Gleixner2013-11-134-88/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The low level interrupt entry code of m68k contains the following: add_preempt_count(HARDIRQ_OFFSET); do_IRQ(); irq_enter(); add_preempt_count(HARDIRQ_OFFSET); handle_interrupt(); irq_exit(); sub_preempt_count(HARDIRQ_OFFSET); if (in_interrupt()) return; <---- On m68k always taken! if (local_softirq_pending()) do_softirq(); sub_preempt_count(HARDIRQ_OFFSET); if (in_hardirq()) return; if (status_on_stack_has_interrupt_priority_mask > 0) return; if (local_softirq_pending()) do_softirq(); ret_from_exception: if (interrupted_context_is_kernel) return: .... I tried to find a proper explanation for this, but the changelog is sparse and there are no mails explaining it further. But obviously this relates to the interrupt priority levels of the m68k and tries to be extra clever with nested interrupts. Though this cleverness just adds code bloat to the interrupt hotpath. For the common case of non nested interrupts the code runs through two extra conditionals to the only important one, which checks whether the return is to kernel or user space. For the nested case the checks for in_hardirq() and the priority mask value on stack catch only the case where the nested interrupt happens inside the hard irq context of the first interrupt. If the nested interrupt happens while the first interrupt handles soft interrupts, then these extra checks buy nothing. The nested interrupt will fall through to the final kernel/user space return check at ret_from_exception. Changing the code flow in the following way: do_IRQ(); irq_enter(); add_preempt_count(HARDIRQ_OFFSET); handle_interrupt(); irq_exit(); sub_preempt_count(HARDIRQ_OFFSET); if (in_interrupt()) return; if (local_softirq_pending()) do_softirq(); ret_from_exception: if (interrupted_context_is_kernel) return: makes the region protected by the hardirq count slightly smaller and the softirq handling is invoked with a minimal deeper stack. But otherwise it's completely functional equivalent and saves 104 bytes of text in arch/m68k/kernel/entry.o. This modification allows us further to get rid of the limitations which m68k puts on the preempt_count layout, so we can make the preempt count bits completely generic. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Linux/m68k <linux-m68k@vger.kernel.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311112052360.30673@ionos.tec.linutronix.de
* | Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds2013-11-151-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Kconfig cleanups from Mark Salter: "Remove some unused config options from C6X and clean up PC_PARPORT dependencies. The latter was discussed here: https://lkml.org/lkml/2013/10/8/12" * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: c6x: remove unused COMMON_CLKDEV Kconfig parameter Kconfig cleanup (PARPORT_PC dependencies) x86: select ARCH_MIGHT_HAVE_PC_PARPORT unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT sparc: select ARCH_MIGHT_HAVE_PC_PARPORT sh: select ARCH_MIGHT_HAVE_PC_PARPORT powerpc: select ARCH_MIGHT_HAVE_PC_PARPORT parisc: select ARCH_MIGHT_HAVE_PC_PARPORT mips: select ARCH_MIGHT_HAVE_PC_PARPORT microblaze: select ARCH_MIGHT_HAVE_PC_PARPORT m68k: select ARCH_MIGHT_HAVE_PC_PARPORT ia64: select ARCH_MIGHT_HAVE_PC_PARPORT arm: select ARCH_MIGHT_HAVE_PC_PARPORT alpha: select ARCH_MIGHT_HAVE_PC_PARPORT c6x: remove unused parameter in Kconfig
| * | m68k: select ARCH_MIGHT_HAVE_PC_PARPORTMark Salter2013-10-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Architectures which support CONFIG_PARPORT_PC should select ARCH_MIGHT_HAVE_PC_PARPORT. Signed-off-by: Mark Salter <msalter@redhat.com> Acked by: Geert Uytterhoeven <geert@linux-m68k.org> CC: linux-m68k@lists.linux-m68k.org
* | | m68k: handle pgtable_page_ctor() failKirill A. Shutemov2013-11-153-3/+14
| |/ |/| | | | | | | | | | | Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'sched-core-for-linus' of ↵Linus Torvalds2013-11-121-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler changes from Ingo Molnar: "The main changes in this cycle are: - (much) improved CONFIG_NUMA_BALANCING support from Mel Gorman, Rik van Riel, Peter Zijlstra et al. Yay! - optimize preemption counter handling: merge the NEED_RESCHED flag into the preempt_count variable, by Peter Zijlstra. - wait.h fixes and code reorganization from Peter Zijlstra - cfs_bandwidth fixes from Ben Segall - SMP load-balancer cleanups from Peter Zijstra - idle balancer improvements from Jason Low - other fixes and cleanups" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits) ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED stop_machine: Fix race between stop_two_cpus() and stop_cpus() sched: Remove unnecessary iteration over sched domains to update nr_busy_cpus sched: Fix asymmetric scheduling for POWER7 sched: Move completion code from core.c to completion.c sched: Move wait code from core.c to wait.c sched: Move wait.c into kernel/sched/ sched/wait: Fix __wait_event_interruptible_lock_irq_timeout() sched: Avoid throttle_cfs_rq() racing with period_timer stopping sched: Guarantee new group-entities always have weight sched: Fix hrtimer_cancel()/rq->lock deadlock sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining sched: Fix race on toggling cfs_bandwidth_used sched: Remove extra put_online_cpus() inside sched_setaffinity() sched/rt: Fix task_tick_rt() comment sched/wait: Fix build breakage sched/wait: Introduce prepare_to_wait_event() sched/wait: Add ___wait_cond_timeout() to wait_event*_timeout() too sched: Remove get_online_cpus() usage sched: Fix race in migrate_swap_stop() ...
| * | sched, arch: Create asm/preempt.hPeter Zijlstra2013-09-251-0/+1
| |/ | | | | | | | | | | | | | | | | | | In order to prepare to per-arch implementations of preempt_count move the required bits into an asm-generic header and use this for all archs. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-h5j0c1r3e3fk015m30h8f1zx@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2013-11-118-9/+16
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: "Summary: - __put_user_unaligned may/will be used by btrfs - m68k part of a global cleanup" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Remove deprecated IRQF_DISABLED m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned()
| * m68k: Remove deprecated IRQF_DISABLEDMichael Opdenacker2013-09-267-9/+9
| | | | | | | | | | | | | | | | This patch proposes to remove the IRQF_DISABLED flag from m68k architecture code. It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned()Geert Uytterhoeven2013-09-101-0/+7
| | | | | | | | | | | | | | fs/btrfs/ioctl.c: In function ‘btrfs_ioctl_file_extent_same’: fs/btrfs/ioctl.c:2802: error: implicit declaration of function ‘__put_user_unaligned’ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* | Remove GENERIC_HARDIRQ config optionMartin Schwidefsky2013-09-131-1/+0
| | | | | | | | | | | | | | | | After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | arch: mm: pass userspace fault flag to generic fault handlerJohannes Weiner2013-09-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike global OOM handling, memory cgroup code will invoke the OOM killer in any OOM situation because it has no way of telling faults occuring in kernel context - which could be handled more gracefully - from user-triggered faults. Pass a flag that identifies faults originating in user space from the architecture-specific fault handlers to generic code so that memcg OOM handling can be improved. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: azurIt <azurit@pobox.sk> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-next' of ↵Linus Torvalds2013-09-0912-147/+27
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu fixes from Greg Ungerer: "Just a small collection of cleanups and fixes this time, no big changes. The most interresting are to make the m68k and m68knommu consistently use CONFIG_IOMAP, clean out some unused board config options and flush the cache on signal stack creation" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: remove 16 unused boards in Kconfig.machine m68k: define 'VM_DATA_DEFAULT_FLAGS' no matter whether has 'NOMMU' or not m68knommu: user generic iomap to support ioread*/iowrite* m68k/coldfire: flush cache when creating the signal stack frame m68knommu: Mark functions only called from setup_arch() __init
| * | m68k: remove 16 unused boards in Kconfig.machinePaul Bolle2013-08-261-134/+0
| | | | | | | | | | | | | | | | | | | | | | | | The Kconfig entries for 16 boards are unused. Remove these, together with the 6 entries that these boards select, but are also unused. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68k: define 'VM_DATA_DEFAULT_FLAGS' no matter whether has 'NOMMU' or notGreg Ungerer2013-08-262-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define 'VM_DATA_DEFAULT_FLAGS' when 'NOMMU' to pass compiling. So move it from "include/asm/page_mm.h to "include/asm/page.h" The related make: make ARCH=m68k randconfig make ARCH=m68k menuconfig choose cross compiler disable MMU support make ARCH=m68k V=1 EXTRA_CFLAGS=-W The related error: security/selinux/hooks.c: In function ‘selinux_init’: security/selinux/hooks.c:5821:21: error: ‘VM_DATA_DEFAULT_FLAGS’ undeclared (first use in this function) Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68knommu: user generic iomap to support ioread*/iowrite*Greg Ungerer2013-08-262-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason we cannot use the generic iomap support to give us the ioread* and iowrite* family of IO access functions. The m68k arch with MMU enabled does, so this makes us consistent for all m68k now. Some potentially valid drivers will fail to compile without these, for example: drivers/i2c/busses/i2c-ocores.c:81:2: error: implicit declaration of function ‘iowrite8’ [-Werror=implicit-function-declaration] drivers/i2c/busses/i2c-ocores.c:86:2: error: implicit declaration of function ‘iowrite16’ [-Werror=implicit-function-declaration] drivers/i2c/busses/i2c-ocores.c:91:2: error: implicit declaration of function ‘iowrite32’ [-Werror=implicit-function-declaration] drivers/i2c/busses/i2c-ocores.c:96:2: error: implicit declaration of function ‘ioread8’ [-Werror=implicit-function-declaration] drivers/i2c/busses/i2c-ocores.c:101:2: error: implicit declaration of function ‘ioread16’ [-Werror=implicit-function-declaration] drivers/i2c/busses/i2c-ocores.c:106:2: error: implicit declaration of function ‘ioread32’ [-Werror=implicit-function-declaration] Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68k/coldfire: flush cache when creating the signal stack frameAlexander Stein2013-08-261-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the signal stack frame is created, it must be flushed in order to make sure the cache fetches the correct data. Without cache flush the icache might pick up old cached data from an older signal stack frame if the signal is raised again very fast. In case of copyback the data cache muist be pushed first, but is untested. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68knommu: Mark functions only called from setup_arch() __initGeert Uytterhoeven2013-08-266-9/+14
| |/ | | | | | | | | | | | | | | Some functions that are only called (indirectly) from setup_arch() lack __init annotations. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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