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2009-12-06hw-breakpoints: Drop callback and task parameters from modify helperFrederic Weisbecker
Drop the callback and task parameters from modify_user_hw_breakpoint(). For now we have no user that need to modify a breakpoint to the point of changing its handler or its task context. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-12-03Merge branch 'perf/probes' into perf/coreIngo Molnar
Merge reason: add these fixes to 'perf probe'. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-03Merge branch 'perf/mce' into perf/coreIngo Molnar
Merge reason: It's ready for v2.6.33. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-02x86: Fix comments of register/stack access functionsMasami Hiramatsu
Fix typos and some redundant comments of register/stack access functions in asm/ptrace.h. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Wenji Huang <wenji.huang@oracle.com> Cc: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com> LKML-Reference: <20091201000222.7669.7477.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu> Suggested-by: Wenji Huang <wenji.huang@oracle.com>
2009-12-02hw-breakpoints: Keep track of user disabled breakpointsFrederic Weisbecker
When we disable a breakpoint through dr7, we unregister it right away, making us lose track of its corresponding address register value. It means that the following sequence would be unsupported: - set address in dr0 - enable it through dr7 - disable it through dr7 - enable it through dr7 because we lost the address register value when we disabled the breakpoint. Don't unregister the disabled breakpoints but rather disable them. Reported-by: "K.Prasad" <prasad@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1259735536-9236-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-27hw-breakpoints: Use struct perf_event_attr to define user breakpointsFrederic Weisbecker
In-kernel user breakpoints are created using functions in which we pass breakpoint parameters as individual variables: address, length and type. Although it fits well for x86, this just does not scale across archictectures that may support this api later as these may have more or different needs. Pass in a perf_event_attr structure instead because it is meant to evolve as much as possible into a generic hardware breakpoint parameter structure. Reported-by: K.Prasad <prasad@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1259294154-5197-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-26x86, mce: Add __cpuinit to hotplug callback functionsHidetoshi Seto
The mce_disable_cpu() and mce_reenable_cpu() are called only from mce_cpu_callback() which is marked as __cpuinit. So these functions can be __cpuinit too. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Andi Kleen <ak@linux.intel.com> LKML-Reference: <4B0E3C4E.4090809@jp.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-26x86/hw-breakpoints: Don't lose GE flag while disabling a breakpointFrederic Weisbecker
When we schedule out a breakpoint from the cpu, we also incidentally remove the "Global exact breakpoint" flag from the breakpoint control register. It makes us losing the fine grained precision about the origin of the instructions that may trigger breakpoint exceptions for the other breakpoints running in this cpu. Reported-by: Prasad <prasad@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1259211878-6013-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-26hw-breakpoints: Simplify error handling in breakpoint creation requestsFrederic Weisbecker
This simplifies the error handling when we create a breakpoint. We don't need to check the NULL return value corner case anymore since we have improved perf_event_create_kernel_counter() to always return an error code in the failure case. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <1259210142-5714-3-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-25x86: Rename global percpu symbol dr7 to cpu_dr7Tejun Heo
Percpu symbols now occupy the same namespace as other global symbols and as such short global symbols without subsystem prefix tend to collide with local variables. dr7 percpu variable used by x86 was hit by this. Rename it to cpu_dr7. The rename also makes it more consistent with its fellow cpu_debugreg percpu variable. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org>, Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20091125115856.GA17856@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
2009-11-24perf_events, x86: Fix validate_event bugStephane Eranian
The validate_event() was failing on valid event combinations. The function was assuming that if x86_schedule_event() returned 0, it meant error. But x86_schedule_event() returns the counter index and 0 is a perfectly valid value. An error is returned if the function returns a negative value. Furthermore, validate_event() was also failing for event groups because the event->pmu was not set until after hw_perf_event_init(). Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: paulus@samba.org Cc: perfmon2-devel@lists.sourceforge.net Cc: eranian@gmail.com LKML-Reference: <4b0bdf36.1818d00a.07cc.25ae@mx.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> -- arch/x86/kernel/cpu/perf_event.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
2009-11-23x86: Tighten conditionals on MCE related statisticsJan Beulich
irq_thermal_count is only being maintained when X86_THERMAL_VECTOR, and both X86_THERMAL_VECTOR and X86_MCE_THRESHOLD don't need extra wrapping in X86_MCE conditionals. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Yong Wang <yong.y.wang@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: Arjan van de Ven <arjan@infradead.org> LKML-Reference: <4B06AFA902000078000211F8@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-23hw-breakpoint: Attribute authorship of hw-breakpoint related filesK.Prasad
Attribute authorship to developers of hw-breakpoint related files. Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091123154713.GA5593@in.ibm.com> [ v2: moved it to latest -tip ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-23perf events: Do not generate function trace entries in perf codeIngo Molnar
Decreases perf overhead when function tracing is enabled, by about 50%. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-21Merge branch 'tracing/hw-breakpoints' into perf/coreIngo Molnar
Conflicts: arch/x86/kernel/kprobes.c kernel/trace/Makefile Merge reason: hw-breakpoints perf integration is looking good in testing and in reviews, plus conflicts are mounting up - so merge & resolve. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-20x86: insn decoder test checks objdump versionMasami Hiramatsu
Check objdump version before using it for insn decoder build test, because some older objdump can't decode AVX code correctly. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Jim Keniston <jkenisto@us.ibm.com> LKML-Reference: <20091120171314.6715.30390.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-20x86: Fix insn decoder test typosMasami Hiramatsu
Fix postest_verbose to posttest_verbose, and add posttest_64bit option for CONFIG_64BIT != y, since old command just passed '-' instead of '-n' when CONFIG_64BIT is not set. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Jim Keniston <jkenisto@us.ibm.com> LKML-Reference: <20091120171307.6715.66099.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-19x86: Instruction decoder test should generate build warningMasami Hiramatsu
Since some instructions are not decoded correctly by older versions of objdump, it may cause false positive error in insn decoder posttest. This changes build error of insn decoder test to build warning. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> LKML-Reference: <20091116230631.5250.41579.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-17Merge branch 'perf/core' into perf/probesIngo Molnar
Resolved merge conflict in tools/perf/Makefile Merge reason: we want to queue up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-17x86: Show symbol name if insn decoder test failedMasami Hiramatsu
Show symbol name if insn decoder test find a difference. This will help us to find out where the issue is. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> LKML-Reference: <20091116230624.5250.49813.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-17x86: Add verbose option to insn decoder testMasami Hiramatsu
Add verbose option to insn decoder test. This dumps decoded instruction when building kernel with V=1. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> LKML-Reference: <20091116230618.5250.18762.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-15Merge branches 'perf/powerpc' and 'perf/bench' into perf/coreIngo Molnar
Merge reason: Both 'perf bench' and the pending PowerPC changes are now ready for the next merge window. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-15Merge commit 'v2.6.32-rc7' into perf/coreIngo Molnar
Merge reason: pick up perf fixlets Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-14hw-breakpoints, x86: Fix modular KVM buildIngo Molnar
This build error: arch/x86/kvm/x86.c:3655: error: implicit declaration of function 'hw_breakpoint_restore' Happens because in the CONFIG_KVM=m case there's no 'CONFIG_KVM' define in the kernel - it's CONFIG_KVM_MODULE in that case. Make the prototype available unconditionally. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <1258114575-32655-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-12Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
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: omap3: Decrease cpufreq transition latency omap3: update Pandora defconfig omap3: 3430sdp: Enable Linux Regulator framework omap3: beagle: Fix USB host port power control omap3: pandora: Fix keypad keymap omap1: Amstrad Delta defconfig fixes omap: Fix omapfb/lcdc on OMAP1510 broken when PM set omap: Use resource_size omap: Fix race condition in omap dma driver
2009-11-12alpha: move THREAD_SIZE definition outside #ifndef ASSEMBLYAndrew Morton
arch/alpha/kernel/vmlinux.lds.S uses it: arch/alpha/kernel/vmlinux.lds:241: undefined symbol `THREAD_SIZE' referenced in expression Seems to have been caused by commit 9d93f00580243cc059510d9d6ac4d2f5e97e5b83 Author: Geoffrey Thomas <geofft@ksplice.com> AuthorDate: Thu Sep 24 10:36:26 2009 -0400 Commit: Linus Torvalds <torvalds@linux-foundation.org> CommitDate: Thu Sep 24 17:16:22 2009 -0700 alpha: Clean up linker script using new linker script macros. Note that .data.page_aligned and .data.cacheline_aligned are now after _data; it was probably a bug that they were before it. Also, some explicit ALIGN(8)'s between various initcall sections were removed; this should be harmless as the implicit alignment of initcall_t was already 8. Cc: Geoffrey Thomas <geofft@ksplice.com> Cc: Tim Abbott <tabbott@ksplice.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-12alpha: fix F_SETOWN_EX and F_GETLK64 conflictPeter Zijlstra
Fix a bug in commit ba0a6c9f6fceed11c6a99e8326f0477fe383e6b5 Author: Peter Zijlstra <a.p.zijlstra@chello.nl> AuthorDate: Wed Sep 23 15:57:03 2009 -0700 Commit: Linus Torvalds <torvalds@linux-foundation.org> CommitDate: Thu Sep 24 07:21:01 2009 -0700 fcntl: add F_[SG]ETOWN_EX In asm-generic/fcntl.h, F_SETOWN_EX and F_GETLK64 both have value 12, and F_GETOWN_EX and F_SETLK64 both have value 13. Reported-by: "Joseph S. Myers" <joseph@codesourcery.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Andreas Schwab <schwab@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-12perf_event, x86: Annotate init functions and dataHiroshi Shimamoto
Annotate init functions and data with __init and __initconst. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@gmail.com> LKML-Reference: <4AFB721E.8070203@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-12x86, mce: Fix __init annotationsHidetoshi Seto
The intel_init_thermal() is called from resume path, so it cannot be marked as __init. OTOH mce_banks_init() is only called from __mcheck_cpu_cap_init() which is marked as __cpuinit, so it can be also marked as __cpuinit. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Acked-by: Yong Wang <yong.y.wang@linux.intel.com> LKML-Reference: <4AFBB0B8.2070501@jp.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-11omap3: Decrease cpufreq transition latencyMike Turquette
Adjust OMAP3 frequency transition latency from 10,000,000uS to a more reasonable 300,000uS. This causes ondemand and conservative governors to sample CPU load more often resulting in more responsive behavior. Tested on Android 2.6.29; using this value and conservative governor, CORE power consumption on Zoom2 was comparable to the old and unresponsive 10,000,000uS value while UI responsiveness was greatly improved. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI: Adjust GFP mask handling for coherent allocations PCI ASPM: fix oops on root port removal
2009-11-11Merge branch 'merge' of ↵Linus Torvalds
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: pasemi_defconfig update powerpc: 2.6.32 update of defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxx powerpc/8xxx: enable IPsec ESP by default on mpc83xx/mpc85xx powerpc/83xx: Fix u-boot partion size for MPC8377E-WLAN boards powerpc/85xx: Fix USB GPIOs for MPC8569E-MDS boards powerpc/82xx: kmalloc failure ignored in ep8248e_mdio_probe() powerpc/85xx: sbc8548 - fixup of PCI-e related DTS fields
2009-11-11Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: Use a definition for the userspace cmpxchg emulation syscall [ARM] Fix test for unimplemented ARM syscalls ARM: 5784/1: fix early boot machine ID mismatch error display [ARM] orion5x: update defconfig [ARM] Kirkwood: update defconfig [ARM] Kirkwood: clarify PCIe MEM bus/physical address distinction [ARM] kirkwood: fix PCI I/O port assignment [ARM] kirkwood: fix section mismatch [ARM] OpenRD base: Initialize PCI express and i2c [ARM] properly report mv78100 stepping A1 ARM: 5780/1: KS8695: Fix macro definition bug in regs-switch.c ARM: 5779/1: ep93xx/micro9.c: fix implicit declaration of function __raw_readl and IOMEM RealView: Add sparsemem support for the RealView PBX platform RealView: Remove duplicated #define REALVIEW_SYS_FLAGS* statements RealView: Add default memory configuration Check whether the SCU was already initialised ARMv7: Check whether the SMP/nAMP mode was already enabled [ARM] pxa: fix resume failure by saving/restoring IPRx registers [ARM] pxa/palm: fix incorrect initialization of Palm Tungsten C keyboard [ARM] pxa/zaurus: fix NAND flash OOB layout for Borzoi
2009-11-11Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
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, amd-ucode: Check UCODE_MAGIC before loading the container file x86: Fix error return sequence in __ioremap_caller() x86: Add Phoenix/MSC BIOSes to lowmem corruption list
2009-11-11omap3: update Pandora defconfigGrazvydas Ignotas
This patch updates defconfig to enable options needed to properly boot OMAP3 pandora board. It also enables MMC, OTG, GPIO LEDs, TWL4030 GPIO and sound drivers. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap3: 3430sdp: Enable Linux Regulator frameworkSergio Aguirre
Some drivers have dependencies on this, and therefore should be enabled. Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap3: beagle: Fix USB host port power controlJarkko Nikula
The host port power is enabled by driving the nEN_USB_PWR low as stated in the comment. This fix is originally from Steve Sakoman <steve@sakoman.com>. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Steve Sakoman <steve@sakoman.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap3: pandora: Fix keypad keymapGrazvydas Ignotas
The original TWL4030 keypad driver from linux-omap used KEY() macro defined as (col, row), but while it was merged upstream it was changed to use matrix keypad infrastructure, which uses (row, col) format. Update the keymap in board file to match layout of mainline driver. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap1: Amstrad Delta defconfig fixesJanusz Krzysztofik
The patch provides the following fixes: - keep kernel small enough to boot with standard tools, - ensure compatibility with both new and legacy distros, - turn on support for recently added or fixed hardware features. Created and tested against linux-2.6.32-rc5. Signed-off-by: Janusz Krzysztofik <jkrzysz@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap: Fix omapfb/lcdc on OMAP1510 broken when PM setJanusz Krzysztofik
With CONFIG_PM=y, the omapfb/lcdc device on Amstrad Delta, after initially starting correctly, breaks with the following error messages: omapfb omapfb: resetting (status 0xffffff96,reset count 1) ... omapfb omapfb: resetting (status 0xffffff96,reset count 100) omapfb omapfb: too many reset attempts, giving up. Looking closer at this I have found that it had been broken almost 2 years ago with commit 2418996e3b100114edb2ae110d5d4acb928909d2, PM fixes for OMAP1. The definite reason for broken omapfb/lcdc behavoiur in PM mode appeared to be ARM_IDLECT1:IDLIF_ARM (bit 6) put into idle regardless of LCD DMA possibly running. The bit were set based on return value of the omap_dma_running() function that did not check for dedicated LCD DMA channel status. The patch below fixes this. Note that the hardcoded register value will be fixed during the next merge cycle to use OMAP_LCDC_ defines. Currently the OMAP_LCDC_ defines are local to drivers/video/omap/lcdc.c, so let's not start moving those right now. Created against linux-2.6.32-rc6 Tested on Amstrad Delta Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11x86: Mark the thermal init functions __initYong Wang
Mark the thermal init functions __init so that the init memory can be freed. Signed-off-by: Yong Wang <yong.y.wang@intel.com> LKML-Reference: <20091111075125.GA17900@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-11powerpc: pasemi_defconfig updateOlof Johansson
pasemi_defconfig hasn't been updated for a year. Mostly a refresh of defaults, but this also disables 64K pages. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-11-11Merge commit 'kumar/merge' into mergeBenjamin Herrenschmidt
2009-11-10omap: Use resource_sizeTobias Klauser
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors and actually fixes one in mailbox.c. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-10omap: Fix race condition in omap dma driverTao Hu
The bug could cause irq enable bit of one DMA channel is cleared/set unexpectedly when 2 (or more) drivers are calling omap_request_dma()/omap_free_dma() simultaneously Signed-off-by: Fei Yang <AFY095@motorola.com> Signed-off-by: Tao Hu <taohu@motorola.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-10Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6Russell King
2009-11-10hw-breakpoints: Wrap in the KVM breakpoint active state checkFrederic Weisbecker
Wrap in the cpu dr7 check that tells if we have active breakpoints that need to be restored in the cpu. This wrapper makes the check more self-explainable and also reusable for any further other uses. Reported-by: Jan Kiszka <jan.kiszka@web.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Avi Kivity <avi@redhat.com> Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-11-10hw-breakpoints: Fix broken a.out format dumpFrederic Weisbecker
Fix the broken a.out format dump. For now we only dump the ptrace breakpoints. TODO: Dump every perf breakpoints for the current thread, not only ptrace based ones. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-11-10ARM: Use a definition for the userspace cmpxchg emulation syscallRussell King
Use a definition for the cmpxchg SWI instead of hard-coding the number. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Nicolas Pitre <nico@fluxnic.net>
2009-11-10x86: Under BIOS control, restore AP's APIC_LVTTHMR to the BSP valueYong Wang
On platforms where the BIOS handles the thermal monitor interrupt, APIC_LVTTHMR on each logical CPU is programmed to generate a SMI and OS must not touch it. Unfortunately AP bringup sequence using INIT-SIPI-SIPI clears all the LVT entries except the mask bit. Essentially this results in all LVT entries including the thermal monitoring interrupt set to masked (clearing the bios programmed value for APIC_LVTTHMR). And this leads to kernel take over the thermal monitoring interrupt on AP's but not on BSP (leaving the bios programmed value only on BSP). As a result of this, we have seen system hangs when the thermal monitoring interrupt is generated. Fix this by reading the initial value of thermal LVT entry on BSP and if bios has taken over the control, then program the same value on all AP's and leave the thermal monitoring interrupt control on all the logical cpu's to the bios. Signed-off-by: Yong Wang <yong.y.wang@intel.com> Reviewed-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: Arjan van de Ven <arjan@infradead.org> LKML-Reference: <20091110013824.GA24940@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: stable@kernel.org
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