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* KVM: Drop kvm->irq_lock lock from irq injection pathGleb Natapov2009-12-034-8/+0
| | | | | | | | | | The only thing it protects now is interrupt injection into lapic and this can work lockless. Even now with kvm->irq_lock in place access to lapic is not entirely serialized since vcpu access doesn't take kvm->irq_lock. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Move IO APIC to its own lockGleb Natapov2009-12-034-23/+21
| | | | | | | The allows removal of irq_lock from the injection path. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Move irq ack notifier list to arch independent codeGleb Natapov2009-12-032-2/+0
| | | | | | | Mask irq notifier list is already there. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Maintain back mapping from irqchip/pin to gsiGleb Natapov2009-12-032-0/+2
| | | | | | | | | | Maintain back mapping from irqchip/pin to gsi to speedup interrupt acknowledgment notifications. [avi: build fix on non-x86/ia64] Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Move irq sharing information to irqchip levelGleb Natapov2009-12-032-1/+1
| | | | | | | | | | This removes assumptions that max GSIs is smaller than number of pins. Sharing is tracked on pin level not GSI level. [avi: no PIC on ia64] Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Call pic_clear_isr() on pic reset to reuse logic thereGleb Natapov2009-12-031-13/+9
| | | | | | | Also move call of ack notifiers after pic state change. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: Don't pass kvm_run argumentsAvi Kivity2009-12-036-142/+141
| | | | | | They're just copies of vcpu->run, which is readily accessible. Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: Introduce No64 decode optionMohammed Gamal2009-12-031-28/+14
| | | | | | | | Introduces a new decode option "No64", which is used for instructions that are invalid in long mode. Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* KVM: x86 emulator: Add 'push/pop sreg' instructionsMohammed Gamal2009-12-031-6/+101
| | | | | | | [avi: avoid buffer overflow] Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* Merge remote branch 'tip/x86/entry' into kvm-updates/2.6.33Avi Kivity2009-12-035-2/+21
|\ | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com>
| * core, x86: Add user return notifiersAvi Kivity2009-10-015-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a general per-cpu notifier that is called whenever the kernel is about to return to userspace. The notifier uses a thread_info flag and existing checks, so there is no impact on user return or context switch fast paths. This will be used initially to speed up KVM task switching by lazily updating MSRs. Signed-off-by: Avi Kivity <avi@redhat.com> LKML-Reference: <1253342422-13811-1-git-send-email-avi@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | MIPS: RB532: Fix devices.c compilation.Florian Fainelli2009-12-021-1/+2
| | | | | | | | | | | | | | | | We should now use dev_set_drvdata to set the driver driver_data field. Signed-off-by: Florian Fainelli <florian@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/747/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | MIPS: Fix MIPS I build.Ralf Baechle2009-12-021-0/+4
| | | | | | | | | | | | | | | | Broken by d63c63e889bbeeaa461a8addf1245f89f3ce4ece (lmo) rsp. f1e39a4a616cd9981a9decfd5332fd07a01abb8b (kernel.org). Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/746/
* | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2009-12-013-9/+28
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Loongson: Switch from flatmem to sparsemem MIPS: Loongson: Disallow 4kB pages MIPS: Add missing definition for MADV_HWPOISON. MIPS: Fix build error if __xchg() is not getting inlined. MIPS: IP22/IP28 Disable early printk to fix boot problems on some systems.
| * | MIPS: Loongson: Switch from flatmem to sparsememWu Zhangjin2009-12-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With flatmem hibernation for Loongson will fail, and there are also some other problems such as broken files when using NFS or CIFS / Samba. The config help of sparsemem says: "This option provides some potential performance benefits, along with decreased code complexity." So to avoid the potential problems of FLATMEM, we disable FLATMEM directly and use SPARSEMEM instead. Related email thread: http://groups.google.com/group/loongson-dev/browse_thread/thread/b6b65890ec2b0f24/feb43e5aa7f55d9b?show_docid=feb43e5aa7f55d9b Reported-by: Tatu Kilappa <tatu.kilappa@gmail.com> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/737/ Cc: linux-mips@linux-mips.org Cc: zhangfx@lemote.com Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Loongson: Disallow 4kB pagesWu Zhangjin2009-12-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, with PAGE_SIZE_4KB, the kernel for loongson will hang on: Kernel panic - not syncing: Attempted to kill init! The possible reason is the cache aliases problem: Loongson 2F has 64kb, 4 way L1 Cache, the way size is 16kb, which is bigger then 4kb. so, If using 4kb page size, there is cache aliases problem. To avoid this kind of problem, extra cache flushing. The 2nd possible solution is 16kb page size which avoids cache aliases without the need for extra cache flushes. So we disable 4kB pages until the aliasing issue is solved. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/736/ Cc: linux-mips@linux-mips.org Cc: zhangfx@lemote.com Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Add missing definition for MADV_HWPOISON.Ralf Baechle2009-12-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Thanks to Joseph S. Myers for reporting this. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: "Joseph S. Myers" <joseph@codesourcery.com> Patchwork: http://patchwork.linux-mips.org/patch/723/
| * | MIPS: Fix build error if __xchg() is not getting inlined.Ralf Baechle2009-12-011-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If __xchg() is not getting inlined the outline version of the function will have a reference to __xchg_called_with_bad_pointer() which does not exist remaining. Fixed by using BUILD_BUG_ON() to check for allowable operand sizes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/705/
| * | MIPS: IP22/IP28 Disable early printk to fix boot problems on some systems.Martin Michlmayr2009-12-011-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Debian users have reported that the kernel hangs early during boot on some IP22 systems. Thomas Bogendoerfer found that this is due to a "bad interaction between CONFIG_EARLY_PRINTK and overwritten prom memory during early boot". Since there's no fix yet, disable CONFIG_EARLY_PRINTK for now. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Cc: linux-mips@linux-mips.org Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/702/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-12-0124-36/+43
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6: alpha: Fixup last users of irq_chip->typename Alpha: Rearrange thread info flags fixing two regressions arch/alpha/kernel: Add kmalloc NULL tests arch/alpha/kernel/sys_ruffian.c: Use DIV_ROUND_CLOSEST
| * | alpha: Fixup last users of irq_chip->typenameThomas Gleixner2009-11-3020-23/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The typename member of struct irq_chip was kept for migration purposes and is obsolete since more than 2 years. Fix up the leftovers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Cc: linux-alpha@vger.kernel.org Signed-off-by: Matt Turner <mattst88@gmail.com>
| * | Alpha: Rearrange thread info flags fixing two regressionsMichael Cree2009-11-301-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The removal of the TIF_NOTIFY_RESUME flag, commit a583f1b54249b "remove unused TIF_NOTIFY_RESUME flag," resulted in incorrect setting of the unaligned access control flags by the prctl syscall. The re-addition of the TIF_NOTIFY_RESUME flag, commit d0420c83f39f "KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures [try #6]" further caused problems, namely incorrect operands to assembler code as evidenced by: AS arch/alpha/kernel/entry.o arch/alpha/kernel/entry.S: Assembler messages: arch/alpha/kernel/entry.S:326: Warning: operand out of range (0x0000000000000406 is not between 0x0000000000000000 and 0x00000000000000ff) Both regressions fixed by (1) rearranging TIF_NOTIFY_RESUME flag to be in lower 8 bits of the thread info flags, and (2) making sure that ALPHA_UAC_SHIFT matches the rearrangement of the thread info flags. Signed-off-by: Michael Cree <mcree@orcon.net.nz> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: David Howells <dhowells@redhat.com>, Signed-off-by: Matt Turner <mattst88@gmail.com>
| * | arch/alpha/kernel: Add kmalloc NULL testsJulia Lawall2009-11-302-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check that the result of kmalloc is not NULL before passing it to other functions. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
| * | arch/alpha/kernel/sys_ruffian.c: Use DIV_ROUND_CLOSESTJulia Lawall2009-11-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ @depends on haskernel@ expression x,__divisor; @@ - (((x) + ((__divisor) / 2)) / (__divisor)) + DIV_ROUND_CLOSEST(x,__divisor) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-11-3014-42/+138
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: Blackfin: fix SMP build error in start_thread() Blackfin: fix memset in smp_send_reschedule() and -stop() Blackfin: fix typo in ptrace poking Blackfin: check for anomaly 05000475 Blackfin: work around testset anomaly 05000477 Blackfin: update anomaly lists Blackfin: fix cache Kconfig typo Blackfin: fix suspend/resume failure with some on-chip ROMs
| * | | Blackfin: fix SMP build error in start_thread()Graf Yang2009-11-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d5ce528c8e46fa5afb9 (Blackfin: convert irq/process to asm-generic) incorrectly merged the smp and non-smp cases of start_thread() causing the L1 stack to be setup on the SMP port instead of the UP port. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: fix memset in smp_send_reschedule() and -stop()Roel Kluin2009-11-251-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To set zeroes the sizeof the struct should be used rather than sizeof the pointer, kzalloc does that. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: fix typo in ptrace pokingJie Zhang2009-11-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c014e15a2f667f9 (Blackfin: convert ptrace to new memory functions) introduced a copy & paste typo in the ptrace poke data/text handling. The access_process_vm() function call was telling it to read instead of write. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: check for anomaly 05000475Mike Frysinger2009-11-251-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Parts that have on-chip L2 SRAM cannot safely utilize writeback caching mode, so reject any attempts to use it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: work around testset anomaly 05000477Mike Frysinger2009-11-251-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Ironically, the atomic testset instruction cannot be interrupted else it will produce incorrect results. So disable interrupts to help it out. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: update anomaly listsMike Frysinger2009-11-257-31/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some recently documented anomalies (473, 474, 475, 477). Also stick a "do not edit" notice in here so people know these are copies of some master version. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: fix cache Kconfig typoAndré Goddard Rosa2009-11-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Kconfig option is "BFIN_EXTMEM_WRITETHROUGH", not "..._WRITETROUGH". Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | | Blackfin: fix suspend/resume failure with some on-chip ROMsMichael Hennerich2009-11-251-2/+7
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Blackfin on-chip ROMs utilize some MDMA channels during the suspend and resume process, but don't clean up after themselves. So manually clear all DMA channels when resuming since no DMA could have been running at this point in time. Now Linux should be able to work regardless of any laziness on the part of the on-chip ROM or boot loader. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2009-11-306-5/+133
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Update mach-types ARM: 5793/1: ARM: Check put_user fail in do_signal when enable OABI_COMPAT MAINTAINERS: add maintainer information for AMBA primecell drivers [ARM] pxa/spitz: fix compile regression on spitz ARM: PNX4008: i2c-pnx: use the same dev_id for request_irq and free_irq [ARM] pxa/cpufreq: fix index assignments for end marker ARM: PNX4008: fix watchdog device driver name [ARM] kmap: fix build errors with DEBUG_HIGHMEM enabled
| * \ \ Merge branch 'mach-types'Russell King2009-11-251-2/+117
| |\ \ \
| | * | | [ARM] Update mach-typesRussell King2009-11-251-2/+117
| | |/ / | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | ARM: 5793/1: ARM: Check put_user fail in do_signal when enable OABI_COMPATJean PIHET2009-11-231-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using OABI, the call to put_user in do_signal can fail causing the calling app to hang. The solution is to check if put_user fails and force the app to seg fault in that case. Tested with multiple sleeping apps/threads (using the nanosleep syscall) and suspend/resume. Signed-off-by: janboe <janboe.ye at gmail.com> Signed-off-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | Merge branch 'fix' of ↵Russell King2009-11-223-1/+4
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
| | * | | [ARM] pxa/spitz: fix compile regression on spitzPavel Machek2009-11-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_AKITA is not set, spitz fails to compile. It worked ok in rc5. Fix is one more ifdef... Signed-off-by: Pavel Machek <pavel@ucw.cz> Acked-by: Stanislav Brabec <utx@penguin.cz> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| | * | | [ARM] pxa/cpufreq: fix index assignments for end markerDaniel Mack2009-11-202-1/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I stumbled over two small things regarding the .index field assignment in the dynamically created cpu frequency tables for pxa2xx and pxa3xx. Even though that doesn't currently cause any problem, it should still be fixed in case the logic in the CPUFREQ core changes. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * / / [ARM] kmap: fix build errors with DEBUG_HIGHMEM enabledRussell King2009-11-201-0/+6
| |/ / | | | | | | | | | | | | | | | | | | | | | d451564 broke ARM by requiring KM_IRQ_PTE, KM_NMI and KM_NMI_PTE to always be defined. Solve this by providing invalid definitions for these constants, but only if CONFIG_DEBUG_HIGHMEM is enabled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'merge' of ↵Linus Torvalds2009-11-301-0/+11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix DEBUG_HIGHMEM build break from d4515646699
| * | | powerpc: Fix DEBUG_HIGHMEM build break from d4515646699Becky Bruce2009-12-011-0/+11
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code was added to mm/higmem.c that depends on several kmap types that powerpc does not support. We add dummy invalid definitions for KM_NMI, KM_NM_PTE, and KM_IRQ_PTE. According to list discussion, this fix should not be needed anymore starting with 2.6.33. The code is commented to this effect so hopefully we will remember to remove this. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2009-11-301-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sunsu: Use sunserial_console_termios() in sunsu_console_setup(). sunsu: Pass true 'ignore_line' to console match when RSC or LOM console. serial: suncore: Fix RSC/LOM handling in sunserial_console_termios(). serial: suncore: Add 'ignore_line' argument to sunserial_console_match(). sunsu: Fix detection of SU ports which are RSC console or control. sunsab: Do not set sunsab_reg.cons right before registering minors. sparc64: Fix definition of VMEMMAP_SIZE.
| * | | sparc64: Fix definition of VMEMMAP_SIZE.David S. Miller2009-11-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was the cause of various boot failures on V480, V880, etc. systems. Kernel image memory was being overwritten because the vmemmap[] array was being sized to small. So if you had physical memory addresses past a certain point, the early bootup would spam all over variables in the kernel data section. The vmemmap mappings map page structs, not page struct pointers. And that was the key thinko in the macro definition. This was fixable thanks to the help, reports, and tireless patience of Hermann Lauer. Reported-by: Hermann Lauer <Hermann.Lauer@iwr.uni-heidelberg.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge branch 'fixes' of ↵Linus Torvalds2009-11-301-1/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUs
| * | | | [CPUFREQ] Enable ACPI PDC handshake for VIA/Centaur CPUsHarald Welte2009-11-241-1/+2
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 0de51088e6a82bc8413d3ca9e28bbca2788b5b53, we introduced the use of acpi-cpufreq on VIA/Centaur CPU's by removing a vendor check for VENDOR_INTEL. However, as it turns out, at least the Nano CPU's also need the PDC (processor driver capabilities) handshake in order to activate the methods required for acpi-cpufreq. Since arch_acpi_processor_init_pdc() contains another vendor check for Intel, the PDC is not initialized on VIA CPU's. The resulting behavior of a current mainline kernel on such systems is: acpi-cpufreq loads and it indicates CPU frequency changes. However, the CPU stays at a single frequency This trivial patch ensures that init_intel_pdc() is called on Intel and VIA/Centaur CPU's alike. Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Dave Jones <davej@redhat.com>
* / | | parisc: fix unwind with recent gcc versionsHelge Deller2009-11-302-4/+4
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | kernel unwinding is broken with gcc >= 4.x. Part of the problem is that binutils seems very sensitive to where the unwind information is stored. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'fixes' of ↵Linus Torvalds2009-11-184-20/+26
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix stale cpufreq_cpu_governor pointer [CPUFREQ] Resolve time unit thinko in ondemand/conservative govs [CPUFREQ] speedstep-ich: fix error caused by 394122ab144dae4b276d74644a2f11c44a60ac5c [CPUFREQ] Fix use after free on governor restore [CPUFREQ] acpi-cpufreq: blacklist Intel 0f68: Fix HT detection and put in notification message [CPUFREQ] powernow-k8: Fix test in get_transition_latency() [CPUFREQ] longhaul: select Longhaul version 2 for capable CPUs
| * | | [CPUFREQ] speedstep-ich: fix error caused by ↵Rusty Russell2009-11-171-12/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 394122ab144dae4b276d74644a2f11c44a60ac5c "[CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.c" changed the code to mistakenly pass the current cpu as the "processor" argument of speedstep_get_frequency(), whereas it should be the type of the processor. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14340 Based on a patch by Dave Mueller. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Dominik Brodowski <linux@brodo.de> Reported-by: Dave Mueller <dave.mueller@gmx.ch> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com>
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