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* KVM: use proper hrtimer function to retrieve expiration timeMarcelo Tosatti2009-10-162-2/+2
| | | | | | | | | | | hrtimer->base can be temporarily NULL due to racing hrtimer_start. See switch_hrtimer_base/lock_hrtimer_base. Use hrtimer_get_remaining which is robust against it. CC: stable@kernel.org Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-10-163-12/+13
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: Revert "x86: linker script syntax nits" x86, perf_event: Rename 'performance counter interrupt'
| * Revert "x86: linker script syntax nits"Ingo Molnar2009-10-152-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e9a63a4e559fbdc522072281d05e6b13c1022f4b. This breaks older binutils, where sink-less asserts are broken. See this commit for further details: d2ba8b2: x86: Fix assert syntax in vmlinux.lds.S Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4AD6523D.5030909@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'linus' into x86/urgentIngo Molnar2009-10-15331-5084/+1936
| |\ | | | | | | | | | | | | | | | Merge reason: pull in latest, to be able to revert a patch there. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, perf_event: Rename 'performance counter interrupt'Li Hong2009-10-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In 'cdd6c482c9ff9c55475ee7392ec8f672eddb7be6', we renamed Performance Counters -> Performance Events. The name showed up in /proc/interrupts also needs a change. I use PMI (Performance monitoring interrupt) here, since it is the official name used in Intel's documents. Signed-off-by: Li Hong <lihong.hi@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20091014105039.GA22670@uhli> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'merge' of ↵Linus Torvalds2009-10-1611-28/+28
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/pci: Fix MODPOST warning powerpc/oprofile: Add ppc750 CL as supported by oprofile powerpc: warning: allocated section `.data_nosave' not in segment powerpc/kgdb: Fix build failure caused by "kgdb.c: unused variable 'acc'" powerpc: Fix hypervisor TLB batching powerpc/mm: Fix hang accessing top of vmalloc space powerpc: Fix memory leak in axon_msi.c powerpc/pmac: Fix issues with sleep on some powerbooks powerpc64/ftrace: use PACA to retrieve TOC in mod_return_to_handler powerpc/ftrace: show real return addresses in modules
| * \ \ Merge commit 'ftrace/ppc' into mergeBenjamin Herrenschmidt2009-10-152-5/+8
| |\ \ \
| | * | | powerpc64/ftrace: use PACA to retrieve TOC in mod_return_to_handlerSteven Rostedt2009-10-131-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mod_return_to_handler needs to switch to the kernel TOC before jumping to a the kernel code. It currently does this by looking at the kernel function data and retrieves the TOC that way. Not only is this inefficient, it also breaks with a relocatable kernel. The PACA contains the kernel TOC and we can easily retrieve it that way. Reported-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| | * | | powerpc/ftrace: show real return addresses in modulesSteven Rostedt2009-10-131-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the function graph tracer is enabled, it replaces the return address with a hook back to the tracer. This makes back traces see the hook instead of the actual return address. The current code also shows the real address by checking if the return address jumps to the return_to_handler. If it is, is also prints out the saved real return address. On powerpc64, some modules may return to mod_return_to_handler, which is not checked. This patch will also show the real address if a return is to mod_return_to_handler as well. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * | | | powerpc/pci: Fix MODPOST warningHeiko Schocher2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | making a powerpc target with PCI support, shows the following warning: MODPOST vmlinux.o WARNING: vmlinux.o(.text+0x10430): Section mismatch in reference from the function pcibios_allocate_bus_resources() to the function .init.text:reparent_resources() The function pcibios_allocate_bus_resources() references the function __init reparent_resources(). This is often because pcibios_allocate_bus_resources lacks a __init annotation or the annotation of reparent_resources is wrong. This patch fix this warning by removing the __init annotation before reparent_resources. Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/oprofile: Add ppc750 CL as supported by oprofileDragos Tatulea2009-10-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here's a patch that adds the ppc750 CL cpu as supported by oprofile. Signed-off-by: Dragos Tatulea <dtatulea@ixiacom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc: warning: allocated section `.data_nosave' not in segmentSean MacLennan2009-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to align before the output section. Having the align inside the output section causes the linker to put some filler in there, which makes it a non-empty section, but this section isn't assigned to a segment so you get a warning from the linker. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/kgdb: Fix build failure caused by "kgdb.c: unused variable 'acc'"Anton Vorontsov2009-10-141-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'acc' isn't used anywhere and thus triggers gcc warning, which causes build error with CONFIG_PPC_DISABLE_WERROR=n (default): cc1: warnings being treated as errors arch/powerpc/kernel/kgdb.c: In function 'gdb_regs_to_pt_regs': arch/powerpc/kernel/kgdb.c:289: warning: unused variable 'acc' make[1]: *** [arch/powerpc/kernel/kgdb.o] Error 1 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc: Fix hypervisor TLB batchingAnton Blanchard2009-10-142-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Profiling of a page fault scalability microbenchmark shows flush_hash_range is not calling the batch hpte invalidate hcall (H_BULK_REMOVE). It turns out we have a duplicate firmware feature for hcall-bulk and the current setup code stops after finding the first match. This meant we never batch and always do individual invalidates. The patch below removes the duplicate and shifts FW_FEATURE_CMO to close the gap. With the patch applied the single threaded page fault rate improves from 217169 to 238755 per second on a POWER5 test box, a 10% improvement. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/mm: Fix hang accessing top of vmalloc spaceBenjamin Herrenschmidt2009-10-141-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On pSeries, we always force the IO space to be mapped using 4K pages even with a 64K base page size to cope with some limitations in the HV interface to some devices. However, the SLB miss handler code to discriminate between vmalloc and ioremap space uses a CPU feature section such that the code is nop'ed out when the processor support large pages non-cachable mappings. Thus, we end up always using the ioremap page size for vmalloc segments on such processors, causing a discrepency between the segment and the hash table, and thus a hang continously hashing the page. It works for the first segment of the vmalloc space since that segment is "bolted" in by C code correctly, and thankfully we almost never use the vmalloc space beyond the first segment, but the new percpu code made the bug happen. This fixes it by removing the feature section from the assembly, we now always do the comparison between vmalloc and ioremap. Signed-off-by; Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc: Fix memory leak in axon_msi.cMichael Ellerman2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cppcheck found a memory leak in axon_msi, if dcr_base or dcr_len are zero, we have already allocated msic, so we should free it in the error path. Signed-off-by: Eric Sesterhenn <eric.sesterhenn@lsexperts.de> Acked-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pmac: Fix issues with sleep on some powerbooksBenjamin Herrenschmidt2009-10-141-2/+5
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the change of how interrupts are disabled during suspend, certain PowerBook models started exhibiting various issues during suspend or resume from sleep. I finally tracked it down to the code that runs various "platform" functions (kind of little scripts extracted from the device-tree), which uses our i2c and PMU drivers expecting interrutps to work, and at a time where with the new scheme, they have been disabled. This causes timeouts internally which for some reason results in the PMU being unable to see the trackpad, among other issues, really it depends on the machine. Most of the time, we fail to properly adjust some clocks for suspend/resume so the results are not always predictable. This patch fixes it by using IRQF_TIMER for both the PMU and the I2C interrupts. I prefer doing it this way than moving the call sites since I really want those platform functions to still be called after all drivers (and before sysdevs). We also do a slight cleanup to via-pmu.c driver to make sure the ADB autopoll mask is handled correctly when doing bus resets Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds2009-10-167-40/+59
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP2xxx clock: set up clockdomain pointer in struct clk OMAP: Fix race condition with autodeps omap: McBSP: Fix incorrect receiver stop in omap_mcbsp_stop omap: Initialization of SDRC params on Zoom2 omap: RX-51: Drop I2C-1 speed to 2200 omap: SDMA: Fixing bug in omap_dma_set_global_params() omap: CONFIG_ISP1301_OMAP redefined in Beagle defconfig
| * | | Merge branch '2_6_32rc4_fixes' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren2009-10-152-30/+45
| |\ \ \ | | | | | | | | | | | | | | | omap-fixes-for-linus
| | * | | OMAP2xxx clock: set up clockdomain pointer in struct clkPaul Walmsley2009-10-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clock24xx.c is missing a omap2_init_clk_clkdm() in its omap2_clk_init() function. Among other bad effects, this causes the OMAP hwmod layer to oops on boot. Thanks to Carlos Aguiar <carlos.aguiar@indt.org.br> and Stefano Panella <Stefano.Panella@csr.com> for reporting this bug. Thanks to Tony Lindgren <tony@atomide.com> for N800 booting advice. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Carlos Aguiar <carlos.aguiar@indt.org.br> Cc: Stefano Panella <Stefano.Panella@csr.com> Cc: Tony Lindgren <tony@atomide.com>
| | * | | OMAP: Fix race condition with autodepsKalle Jokiniemi2009-10-151-30/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a possible race condition in clockdomain code handling hw supported idle transitions. When multiple autodeps dependencies are being added or removed, a transition of still remaining dependent powerdomain can result in false readings of the state counter. This is especially fatal for off mode state counter, as it could result in a driver not noticing a context loss. Fixed by disabling hw supported state transitions when autodeps are being changed. Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | | | omap: McBSP: Fix incorrect receiver stop in omap_mcbsp_stopJarkko Nikula2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This small typo written by author causes that McBSP receiver is disabled on OMAP2430 and OMAP3430 even if only transmitter is stopped. This was noted with ALSA SoC where simultaneous recording halted if playback was stopped first. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | omap: Initialization of SDRC params on Zoom2Teerth Reddy2009-10-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch initializes the correct SDRC settings required for DVFS on Zoom2. Signed-off-by: Teerth Reddy <teerth@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | omap: RX-51: Drop I2C-1 speed to 2200Aaro Koskinen2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The I2C-1 bus frequency on RX-51 should be 2.2 MHz. The speed is limited by TWL5030/GAIA; a higher speed could lead to errors on the interface. The maximum speed depends on the system clock for GAIA: 2.2 MHz (if 19.2 MHz), 2.4 MHz (26 MHz) or 2.9 MHz (38.4 MHz). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | omap: SDMA: Fixing bug in omap_dma_set_global_params()Anuj Aggarwal2009-10-141-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Argument tparams was not being used to program global register GCR.HI_THREAD_RESERVED. This patch fixes the same. Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | omap: CONFIG_ISP1301_OMAP redefined in Beagle defconfigSanjeev Premi2009-10-141-1/+0
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The symbol CONFIG_ISP1301_OMAP was defined twice in the defconfig. This was causing the warning: arch/arm/configs/omap3_beagle_defconfig:972:warning: override: reassigning to symbol ISP1301_OMAP Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | | Merge branch 'topic/x86-lds-nits' of ↵Linus Torvalds2009-10-152-11/+10
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland * 'topic/x86-lds-nits' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland: x86: linker script syntax nits
| * | | | x86: linker script syntax nitsRoland McGrath2009-10-142-11/+10
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The linker scripts grew some use of weirdly wrong linker script syntax. It happens to work, but it's not what the syntax is documented to be. Clean it up to use the official syntax. Signed-off-by: Roland McGrath <roland@redhat.com> CC: Ian Lance Taylor <iant@google.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2009-10-153-4/+4
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: watchdog: Fix rio watchdog probe function sparc64: Set IRQF_DISABLED on LDC channel IRQs. sparc64: Fix D-cache flushing on swapin from SW devices. sparc64: Fix niagara2 perf IRQ bits.
| * | | | sparc64: Set IRQF_DISABLED on LDC channel IRQs.David S. Miller2009-10-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With lots of virtual devices it's easy to generate a lot of events and chew up the kernel IRQ stack. Reported-by: hyl <heyongli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | sparc64: Fix D-cache flushing on swapin from SW devices.David S. Miller2009-10-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to tip form ARM folks and Russell King. If flush_dcache_page() occurs on a swapin it will have a mapping and we'll try to defer the flush by setting the dirty bit. But when it hits update_dcache_page() we won't flush because the page won't have a mapping any more. So remove the mapping requirement in flush_dcache(). Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | sparc64: Fix niagara2 perf IRQ bits.David S. Miller2009-10-091-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2009-10-152-4/+4
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] sclp_vt220 build fix [S390] cio: change misleading console logic [S390] call home support: fix proc handler [S390] dasd: use idal for device characteristics [S390] Add highgprs facility to /proc/cpuinfo [S390] dasd: fix locking bug [S390] tape390: Fix request queue handling in block driver [S390] hypfs: Use subcode 6 if subcode 7 is not available
| * | | | | [S390] Add highgprs facility to /proc/cpuinfoAndreas Krebbel2009-10-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the hwcap bit for the high gprs feature to be visible in /proc/cpuinfo. Signed-off-by: Andreas Krebbel <Andreas.Krebbel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] hypfs: Use subcode 6 if subcode 7 is not availableMichael Holzheu2009-10-141-1/+1
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hypfs never worked on systems that only provide D204 subcode 6. In these cases we nevertheless used subcode 7. With this fix, we use subcode 6, if it is available and the system does not provide subcode 7. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | | Merge branch 'sh/for-2.6.32' of ↵Linus Torvalds2009-10-157-20/+41
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix a TRACE_IRQS_OFF typo. sh: Optimize the setup_rt_frame() I-cache flush. sh: Populate initial secondary CPU info from boot_cpu_data. sh: Tidy up SMP cpuinfo. sh: Use boot_cpu_data for FPU tests in sigcontext paths. sh: ftrace: Fix up syscall tracepoint support. sh: force dcache flush if dcache_dirty bit set. sh: update die() output.
| * | | | | sh: Fix a TRACE_IRQS_OFF typo.Paul Mundt2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so never handled the transition properly. This was fixed once before but seems to have made it back in the tree. Fix it for good. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Optimize the setup_rt_frame() I-cache flush.Paul Mundt2009-10-141-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This only needs to flush the return code via the legacy path, and just invalidates uselessly otherwise. This makes the behaviour consistent for all of the trampoline setup paths. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Populate initial secondary CPU info from boot_cpu_data.Paul Mundt2009-10-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The secondary CPU info was seeing corrupted results due to not entering all of the setup paths taken by the boot CPU. So we just memcpy() the boot cpu data over directly, and then fix up the per-CPU bits. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Tidy up SMP cpuinfo.Paul Mundt2009-10-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trivial change for cleaning up the cpuinfo pretty printing on SMP, adds a newline between CPUs. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Use boot_cpu_data for FPU tests in sigcontext paths.Paul Mundt2009-10-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We do not want to use smp_processor_id() from these paths, as they trip preempt BUGs. Switch the test over to the boot cpu directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: ftrace: Fix up syscall tracepoint support.Paul Mundt2009-10-131-10/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sync up with latest core changes in the syscalls tracing area: - tracing: Map syscall name to number (syscall_name_to_nr()) - tracing: Call arch_init_ftrace_syscalls at boot - tracing: add support tracepoint ids (set_syscall_{enter,exit}_id()) Taken from the s390 change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: force dcache flush if dcache_dirty bit set.Paul Mundt2009-10-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This too follows the ARM change, given that the issue at hand applies to all platforms that implement lazy D-cache writeback. This fixes up the case when a page mapping disappears between the flush_dcache_page() call (when PG_dcache_dirty is set for the page) and the update_mmu_cache() call -- such as in the case of swap cache being freed early. This kills off the mapping test in update_mmu_cache() and switches to simply testing for PG_dcache_dirty. Reported-by: Nitin Gupta <ngupta@vflare.org> Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: update die() output.Paul Mundt2009-10-131-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This follows the ARM change, as SH had all of the same issues: Make die() better match x86: - add printing of the last accessed sysfs file - ensure console_verbose() is called under the lock - ensure we panic outside of oops_exit() Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2009-10-152-3/+0
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix missing kernel-doc notation Revert "x86, timers: Check for pending timers after (device) interrupts" sched: Update the clock of runqueue select_task_rq() selected
| * | | | | | Revert "x86, timers: Check for pending timers after (device) interrupts"Ingo Molnar2009-10-092-3/+0
| | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 9bcbdd9c58617f1301dd4f17c738bb9bc73aca70. The real bug producing LatencyTop latencies has been fixed in: f5dc375: sched: Update the clock of runqueue select_task_rq() selected And the commit being reverted here triggers local timer processing from every device IRQ. If device IRQs come in at a high frequency, this could cause a performance regression. The commit being reverted here purely 'fixed' the reported latency as a side effect, because CPUs were being moved out of idle more often. Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Frans Pop <elendil@planet.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Thomas Gleixner <tglx@linutronix.de> LKML-Reference: <20091008064041.67219b13@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-10-157-33/+37
|\ \ \ \ \ \ | |_|_|/ / / |/| | | | / | | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/paravirt: Use normal calling sequences for irq enable/disable x86: fix kernel panic on 32 bits when profiling x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop x86, vmi: Mark VMI deprecated and schedule it for removal
| * | | | x86/paravirt: Use normal calling sequences for irq enable/disableJeremy Fitzhardinge2009-10-132-28/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bastian Blank reported a boot crash with stackprotector enabled, and debugged it back to edx register corruption. For historical reasons irq enable/disable/save/restore had special calling sequences to make them more efficient. With the more recent introduction of higher-level and more general optimisations this is no longer necessary so we can just use the normal PVOP_ macros. This fixes some residual bugs in the old implementations which left edx liable to inadvertent clobbering. Also, fix some bugs in __PVOP_VCALLEESAVE which were revealed by actual use. Reported-by: Bastian Blank <bastian@waldi.eu.org> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org> Cc: Xen-devel <xen-devel@lists.xensource.com> LKML-Reference: <4AD3BC9B.7040501@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: fix kernel panic on 32 bits when profilingH. Peter Anvin2009-10-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Latest kernel has a kernel panic in booting on i386 machine when profile=2 setting in cmdline. It is due to 'sp' being incorrect in profile_pc(). BUG: unable to handle kernel NULL pointer dereference at 00000246 IP: [<c01288b6>] profile_pc+0x2a/0x48 *pde = 00000000 Oops: 0000 [#1] SMP This differs from the original version by Alex Shi in that we use the kernel_stack_pointer() inline already defined in <asm/ptrace.h> for this purpose, instead of #ifdef. Originally-by: Alex Shi <alex.shi@intel.com> Cc: "Chen, Tim C" <tim.c.chen@intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptopJan Beulich2009-10-122-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the trampoline and accessors back out of .cpuinit.* for the case of 64-bits+ACPI_SLEEP. This solves s2ram hangs reported in: http://bugzilla.kernel.org/show_bug.cgi?id=14279 Reported-and-bisected-by: Christian Casteyde <casteyde.christian@free.fr> Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: <bugzilla-daemon@bugzilla.kernel.org> Cc: "Andrew Morton" <akpm@linux-foundation.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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