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* Merge branch 'master' into export-slabhTejun Heo2010-04-04
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| * Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-04-04
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Always build the powerpc perf_arch_fetch_caller_regs version perf: Always build the stub perf_arch_fetch_caller_regs version perf, probe-finder: Build fix on Debian perf/scripts: Tuple was set from long in both branches in python_process_event() perf: Fix 'perf sched record' deadlock perf, x86: Fix callgraphs of 32-bit processes on 64-bit kernels perf, x86: Fix AMD hotplug & constraint initialization x86: Move notify_cpu_starting() callback to a later stage x86,kgdb: Always initialize the hw breakpoint attribute perf: Use hot regs with software sched switch/migrate events perf: Correctly align perf event tracing buffer
| | * perf: Always build the powerpc perf_arch_fetch_caller_regs versionFrederic Weisbecker2010-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that software events use perf_arch_fetch_caller_regs() too, we need the powerpc version to be always built. Fixes the following build error: (.text+0x3210): undefined reference to `perf_arch_fetch_caller_regs' (.text+0x3324): undefined reference to `perf_arch_fetch_caller_regs' (.text+0x33bc): undefined reference to `perf_arch_fetch_caller_regs' (.text+0x33ec): undefined reference to `perf_arch_fetch_caller_regs' (.text+0xd4a0): undefined reference to `perf_arch_fetch_caller_regs' arch/powerpc/kernel/built-in.o:(.text+0xd528): more undefined references to `perf_arch_fetch_caller_regs' follow make[1]: *** [.tmp_vmlinux1] Error 1 make: *** [sub-make] Error 2 Reported-by: Michael Ellerman <michael@ellerman.id.au> Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org>
| * | Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2010-04-02
| |\ \ | | |/ | |/| | | | | | | | | | | | | * 'merge' of git://git.secretlab.ca/git/linux-2.6: powerpc/5200: in lpbfifo, flag DMA irqs as enabled after requesting them powerpc/fsl: add device tree binding for QE firmware of/flattree: Fix unhandled OF_DT_NOP tag when unflattening the device tree
| | * powerpc/5200: in lpbfifo, flag DMA irqs as enabled after requesting themRoman Fietze2010-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch avoids unbalanced enable/disable messages for the DMA interrupts when running the 5200 platform SCLPC/BestComm driver in DMA mode. Signed-off-by: Roman Fietze <roman.fietze@telemotive.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-03-26
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: powerpc/perf_events: Fix call-graph recording, add perf_arch_fetch_caller_regs perf top: Add missing initialization to zero perf probe: Use original address instead of CU-based address perf probe: Fix offset to allow signed value perf top: Improve the autosizing of column lenghts perf probe: Fix need_dwarf flag if lazy matching is used perf probe: Fix probe_point buffer overrun
| * powerpc/perf_events: Fix call-graph recording, add perf_arch_fetch_caller_regsPaul Mackerras2010-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements a powerpc version of perf_arch_fetch_caller_regs to get correct call-graphs. It's implemented in assembly because that way we can be sure there isn't a stack frame for perf_arch_fetch_caller_regs. If it was in C, gcc might or might not create a stack frame for it, which would affect the number of levels we have to skip. With this, we see results from perf record -e lock:lock_acquire like this: # Samples: 24878 # # Overhead Command Shared Object Symbol # ........ .............. ................. ...... # 14.99% perf [kernel.kallsyms] [k] ._raw_spin_lock | --- ._raw_spin_lock | |--25.00%-- .alloc_fd | (nil) | | | |--50.00%-- .anon_inode_getfd | | .sys_perf_event_open | | syscall_exit | | syscall | | create_counter | | __cmd_record | | run_builtin | | main | | 0xfd2e704 | | 0xfd2e8c0 | | (nil) ... etc. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: anton@samba.org Cc: linuxppc-dev@ozlabs.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100318050513.GA6575@drongo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'merge' of ↵Linus Torvalds2010-03-19
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Remove IOMMU_VMERGE config option powerpc: Fix swiotlb to respect the boot option powerpc: Do not call prink when CONFIG_PRINTK is not defined powerpc: Use correct ccr bit for syscall error status powerpc/fsl-booke: Get coherent bit from PTE powerpc/85xx: Make sure lwarx hint isn't set on ppc32
| * | powerpc: Remove IOMMU_VMERGE config optionFUJITA Tomonori2010-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The description says: Cause IO segments sent to a device for DMA to be merged virtually by the IOMMU when they happen to have been allocated contiguously. This doesn't add pressure to the IOMMU allocator. However, some drivers don't support getting large merged segments coming back from *_map_sg(). Most drivers don't have this problem; it is safe to say Y here. It's out of date. Long ago, drivers didn't have a way to tell IOMMUs about their segment length limit (that is, the maximum segment length that they can handle). So IOMMUs merged as many segments as possible and gave too large segments to drivers. dma_get_max_seg_size() was introduced to solve the above problem. Device drives can use the API to tell IOMMU about the maximum segment length that they can handle. In addition, the default limit (64K) should be safe for everyone. So this config option seems to be unnecessary. Note that this config option just enables users to disable the virtual merging by default. Users can still disable the virtual merging by the boot parameter. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Fix swiotlb to respect the boot optionFUJITA Tomonori2010-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | powerpc initializes swiotlb before parsing the kernel boot options so swiotlb options (e.g. specifying the swiotlb buffer size) are ignored. Any time before freeing bootmem works for swiotlb so this patch moves powerpc's swiotlb initialization after parsing the kernel boot options, mem_init (as x86 does). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Becky Bruce <beckyb@kernel.crashing.org> Tested-by: Albert Herranz <albert_herranz@yahoo.es> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Do not call prink when CONFIG_PRINTK is not definedMárton Németh2010-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When printk() is disabled (CONFIG_PRINTK) at menu item General setup -> Configure standard kernel features (for small systems) -> Enable support for printk then there should be no printk() calls at all. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Use correct ccr bit for syscall error statusNathan Lynch2010-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The powerpc implementations of syscall_get_error and syscall_set_return_value should use CCR0:S0 (0x10000000) for testing and setting syscall error status. Fortunately these APIs don't seem to be used at the moment. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Merge commit 'kumar/merge' into mergeBenjamin Herrenschmidt2010-03-19
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| | * | powerpc/fsl-booke: Get coherent bit from PTEKumar Gala2010-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We shouldn't be always setting 'M' in the TLB entry since its reasonable for somethings to be mapped non-coherent. The PTE should have 'M' set properly. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/85xx: Make sure lwarx hint isn't set on ppc32Kumar Gala2010-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | e500v1/v2 based chips will treat any reserved field being set in an opcode as illegal. Thus always setting the hint in the opcode is a bad idea. Anton should be kept away from the powerpc opcode map. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | | Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2010-03-18
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'merge' of git://git.secretlab.ca/git/linux-2.6: powerpc/5200: Build fix for mpc52xx watchdog timer code of: Fix comparison of "compatible" properties powerpc/52xx: update defconfigs spi/omap2_mcspi: Use transaction speed if provided spi/omap2_mcspi: fix NULL pointer dereference uartlite: Fix build on sparc.
| * | | | powerpc/5200: Build fix for mpc52xx watchdog timer codeGrant Likely2010-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpc52xx_gpt_wdt_setup is defined as 0, which causes the following build failure with gcc 4.5, since it's built with -Werror. arch/powerpc/platforms/52xx/mpc52xx_gpt.c:761:3: error: statement with no effect Changing it to a static inline fixes the problem. Reported-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | | | powerpc/52xx: update defconfigsGrant Likely2010-03-10
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | | | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-03-18
|\ \ \ \ \ | |_|/ / / |/| | | / | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (35 commits) perf: Fix unexported generic perf_arch_fetch_caller_regs perf record: Don't try to find buildids in a zero sized file perf: export perf_trace_regs and perf_arch_fetch_caller_regs perf, x86: Fix hw_perf_enable() event assignment perf, ppc: Fix compile error due to new cpu notifiers perf: Make the install relative to DESTDIR if specified kprobes: Calculate the index correctly when freeing the out-of-line execution slot perf tools: Fix sparse CPU numbering related bugs perf_event: Fix oops triggered by cpu offline/online perf: Drop the obsolete profile naming for trace events perf: Take a hot regs snapshot for trace events perf: Introduce new perf_fetch_caller_regs() for hot regs snapshot perf/x86-64: Use frame pointer to walk on irq and process stacks lockdep: Move lock events under lockdep recursion protection perf report: Print the map table just after samples for which no map was found perf report: Add multiple event support perf session: Change perf_session post processing functions to take histogram tree perf session: Add storage for seperating event types in report perf session: Change add_hist_entry to take the tree root instead of session perf record: Add ID and to recorded event data when recording multiple events ...
| * | | perf, ppc: Fix compile error due to new cpu notifiersPeter Zijlstra2010-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: arch/powerpc/kernel/perf_event.c:1334: error: 'power_pmu_notifier' undeclared (first use in this function) arch/powerpc/kernel/perf_event.c:1334: error: (Each undeclared identifier is reported only once arch/powerpc/kernel/perf_event.c:1334: error: for each function it appears in.) arch/powerpc/kernel/perf_event.c:1334: error: implicit declaration of function 'power_pmu_notifier' arch/powerpc/kernel/perf_event.c:1334: error: implicit declaration of function 'register_cpu_notifier' Due to commit 3f6da390 (perf: Rework and fix the arch CPU-hotplug hooks). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | perf: Rework and fix the arch CPU-hotplug hooksPeter Zijlstra2010-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the hw_perf_event_*() hotplug hooks in favour of per PMU hotplug notifiers. This has the advantage of reducing the static weak interface as well as exposing all hotplug actions to the PMU. Use this to fix x86 hotplug usage where we did things in ONLINE which should have been done in UP_PREPARE or STARTING. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mundt <lethal@linux-sh.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <20100305154128.736225361@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-03-13
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Provide generic perf_sample_data initialization MAINTAINERS: Add Arnaldo as tools/perf/ co-maintainer perf trace: Don't use pager if scripting perf trace/scripting: Remove extraneous header read perf, ARM: Modify kuser rmb() call to compile for Thumb-2 x86/stacktrace: Don't dereference bad frame pointers perf archive: Don't try to collect files without a build-id perf_events, x86: Fixup fixed counter constraints perf, x86: Restrict the ANY flag perf, x86: rename macro in ARCH_PERFMON_EVENTSEL_ENABLE perf, x86: add some IBS macros to perf_event.h perf, x86: make IBS macros available in perf_event.h hw-breakpoints: Remove stub unthrottle callback x86/hw-breakpoints: Remove the name field perf: Remove pointless breakpoint union perf lock: Drop the buffers multiplexing dependency perf lock: Fix and add misc documentally things percpu: Add __percpu sparse annotations to hw_breakpoint
| * | | perf: Provide generic perf_sample_data initializationPeter Zijlstra2010-03-10
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes it easier to extend perf_sample_data and fixes a bug on arm and sparc, which failed to set ->raw to NULL, which can cause crashes when combined with PERF_SAMPLE_RAW. It also optimizes PowerPC and tracepoint, because the struct initialization is forced to zero out the whole structure. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Jean Pihet <jpihet@mvista.com> Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Jamie Iles <jamie.iles@picochip.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Cc: stable@kernel.org LKML-Reference: <20100304140100.315416040@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'merge' of ↵Linus Torvalds2010-03-12
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/booke: Fix breakpoint/watchpoint one-shot behavior powerpc: Reduce printk from pseries_mach_cpu_die() powerpc: Move checks in pseries_mach_cpu_die() powerpc: Reset kernel stack on cpu online from cede state powerpc: Fix G5 thermal shutdown powerpc/pseries: Pass CPPR value to H_XIRR hcall powerpc/booke: Fix a couple typos in the advanced ptrace code powerpc: Fix SMP build with disabled CPU hotplugging. powerpc: Dynamically allocate pacas powerpc/perf: e500 support powerpc/perf: Build callchain code regardless of hardware event support. powerpc/cpm2: Checkpatch cleanup powerpc/86xx: Renaming following split of GE Fanuc joint venture powerpc/86xx: Convert gef_pic_lock to raw_spinlock powerpc/qe: Convert qe_ic_lock to raw_spinlock powerpc/82xx: Convert pci_pic_lock to raw_spinlock powerpc/85xx: Convert socrates_fpga_pic_lock to raw_spinlock
| * | powerpc/booke: Fix breakpoint/watchpoint one-shot behaviorDave Kleikamp2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Another fix for the extended ptrace patches in the -next tree. The handling of breakpoints and watchpoints is inconsistent. When a breakpoint or watchpoint is hit, the interrupt handler is clearing the proper bits in the dbcr* registers, but leaving the dac* and iac* registers alone. The ptrace code to delete the break/watchpoints checks the dac* and iac* registers for zero to determine if they are enabled. Instead, they should check the dbcr* bits. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Reduce printk from pseries_mach_cpu_die()Vaidyanathan Srinivasan2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove debug printks in pseries_mach_cpu_die(). These are noisy at runtime. Traceevents can be added to instrument this section of code. The following KERN_INFO printks are removed: cpu 62 (hwid 62) returned from cede. Decrementer value = b2802fff Timebase value = 2fa8f95035f4a cpu 62 (hwid 62) got prodded to go online cpu 58 (hwid 58) ceding for offline with hint 2 Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Move checks in pseries_mach_cpu_die()Vaidyanathan Srinivasan2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rearrange condition checks for better code readability and prevention of possible race conditions when preferred_offline_state can potentially change during the execution of pseries_mach_cpu_die(). The patch will make pseries_mach_cpu_die() put cpu in one of the consistent states and not hit the run over BUG() Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Reset kernel stack on cpu online from cede stateVaidyanathan Srinivasan2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cpu hotplug (offline) without dlpar operation will place cpu in cede state and the extended_cede_processor() function will return when resumed. Kernel stack pointer needs to be reset before start_secondary() is called to continue the online operation. Added new function start_secondary_resume() to do the above steps. Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc/pseries: Pass CPPR value to H_XIRR hcallMark Nelson2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we properly keep track of the CPPR value (since 49bd3647134ea47420067aea8d1401e722bf2aac, "powerpc/pseries: Track previous CPPR values to correctly EOI interrupts") we can pass it to the H_XIRR hcall. This is needed because the Partition Adjunct Option of new versions of pHyp extend the H_XIRR hcall to include the CPPR as an input parameter. Earlier versions not supporting this option just disregard the extra input parameter, so this doesn't cause any problems for existing systems. The Partition Adjunct Option is required for future systems that will support SR-IOV capable devices. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc/booke: Fix a couple typos in the advanced ptrace codeDave Kleikamp2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | powerpc/booke: Fix a couple typos in the advanced ptrace code Found and fixed a couple typos in the advanced ptrace patches. (These patches are currently in benh's next tree.) Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev list <Linuxppc-dev@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Fix SMP build with disabled CPU hotplugging.Adam Lackorzynski2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compiling 2.6.33 with SMP enabled and HOTPLUG_CPU disabled gives me the following link errors: LD init/built-in.o LD .tmp_vmlinux1 arch/powerpc/platforms/built-in.o: In function `.smp_xics_setup_cpu': smp.c:(.devinit.text+0x88): undefined reference to `.set_cpu_current_state' smp.c:(.devinit.text+0x94): undefined reference to `.set_default_offline_state' arch/powerpc/platforms/built-in.o: In function `.smp_pSeries_kick_cpu': smp.c:(.devinit.text+0x13c): undefined reference to `.set_preferred_offline_state' smp.c:(.devinit.text+0x148): undefined reference to `.get_cpu_current_state' smp.c:(.devinit.text+0x1a8): undefined reference to `.get_cpu_current_state' make: *** [.tmp_vmlinux1] Error 1 The following change fixes that for me and seems to work as expected. Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Dynamically allocate pacasMichael Ellerman2010-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 64-bit kernels we currently have a 512 byte struct paca_struct for each cpu (usually just called "the paca"). Currently they are statically allocated, which means a kernel built for a large number of cpus will waste a lot of space if it's booted on a machine with few cpus. We can avoid that by only allocating the number of pacas we need at boot. However this is complicated by the fact that we need to access the paca before we know how many cpus there are in the system. The solution is to dynamically allocate enough space for NR_CPUS pacas, but then later in boot when we know how many cpus we have, we free any unused pacas. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Merge commit 'kumar/next' into mergeBenjamin Herrenschmidt2010-03-08
| |\ \ | | |/ | |/|
| | * powerpc/perf: e500 supportScott Wood2010-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements perf_event support for the Freescale embedded performance monitor, based on the existing perf_event.c that supports server/classic chips. Some limitations: - Performance monitor interrupts are regular EE interrupts, and thus you can't profile places with interrupts disabled. We may want to implement soft IRQ-disabling, with perfmon interrupts exempted and treated as NMIs. - When trying to schedule multiple event groups at once, and using restricted events, situations could arise where scheduling fails even though it would be possible. Consider three groups, each with two events. One group has restricted events, the others don't. The two non-restricted groups are scheduled, then one is removed, which happens to occupy the two counters that can't do restricted events. The remaining non-restricted group will not be moved to the non-restricted-capable counters to make room if the restricted group tries to be scheduled. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/perf: Build callchain code regardless of hardware event support.Scott Wood2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | It's also useful for software events, as well as future support for other types of hardware counters. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/cpm2: Checkpatch cleanupAndrea Gelmini2010-03-04
| | | | | | | | | | | | | | | | | | | | | arch/powerpc/sysdev/cpm2_pic.h:6: ERROR: "(foo*)" should be "(foo *)" Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/86xx: Renaming following split of GE Fanuc joint ventureMartyn Welch2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | This patch renames GE Fanuc boards following the split-up of the GE Fanuc joint venture. These boards are now made by GE Intelligent platorms. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/86xx: Convert gef_pic_lock to raw_spinlockAnton Vorontsov2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, gef_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/qe: Convert qe_ic_lock to raw_spinlockAnton Vorontsov2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, qe_ic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/82xx: Convert pci_pic_lock to raw_spinlockAnton Vorontsov2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, pci_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * powerpc/85xx: Convert socrates_fpga_pic_lock to raw_spinlockAnton Vorontsov2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, socrates_fpga_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-12
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
| * \ \ Merge branch 'for-next' into for-linusJiri Kosina2010-03-08
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| | * | | tree-wide: Assorted spelling fixesDaniel Mack2010-02-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| | * | | tree-wide: fix typos "ammount" -> "amount"Uwe Kleine-König2010-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| | * | | fix comment typo leve -> level in powerpcThadeu Lima de Souza Cascardo2010-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| | * | | Fix spelling of 'platform' in comments and docStefan Weil2010-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace platfrom -> platform. This is a frequent spelling bug. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | dma-mapping: powerpc: use generic pci_set_dma_mask and ↵FUJITA Tomonori2010-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_set_consistent_dma_mask This converts powerpc to use the generic pci_set_dma_mask and pci_set_consistent_dma_mask (drivers/pci/pci.c). The generic pci_set_dma_mask does what powerpc's pci_set_dma_mask does. Unlike powerpc's pci_set_consistent_dma_mask, the gneric pci_set_consistent_dma_mask sets only coherent_dma_mask. It doesn't work for powerpc? pci_set_consistent_dma_mask API should set only coherent_dma_mask? Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Greg KH <greg@kroah.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | pci-dma: add linux/pci-dma.h to linux/pci.hFUJITA Tomonori2010-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the architectures properly set NEED_DMA_MAP_STATE now so we can safely add linux/pci-dma.h to linux/pci.h and remove the linux/pci-dma.h inclusion in arch's asm/pci.h Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>