1. 15 10月, 2010 18 次提交
    • R
      oprofile, x86: Add support for IBS periodic op counter extension · b47fad3b
      Robert Richter 提交于
      The count value for IBS op sampling has been extended by 7 bits. The
      feature is reflected in bit 6 (OpCntExt) of the IBS capability
      register (CPUID Fn8000_001B_EAX).
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      b47fad3b
    • R
      oprofile, x86: Add support for IBS branch target address reporting · 25da6950
      Robert Richter 提交于
      This patch adds support for IBS branch target address reporting. A new
      MSR (MSRC001_103B IBS Branch Target Address) has been added that
      provides the logical address in canonical form for the branch
      target. The size of the IBS sample that is transferred to the userland
      has been increased.
      
      For backward compatibility, the userland daemon must explicit enable
      the feature by writing to the oprofilefs file
      
       ibs_op/branch_target
      
      After enabling branch target address reporting, the userland daemon
      must handle the extended size of the IBS sample.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      25da6950
    • R
      oprofile, x86: Introduce struct ibs_state · 53b39e94
      Robert Richter 提交于
      This patch introduces struct ibs_state that will extended by additinal
      members in follow-on patches.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      53b39e94
    • R
      oprofile, x86: Remove duplicate check for IBS_CAPS_OPCNT · fc889aa2
      Robert Richter 提交于
      Since oprofile is setting up ibs_op/dispatched_ops in the fs only if
      the feature is available, its corresponding variable
      ibs_config.dispatched_ops is only set, if the feature is
      available. Thus the check is duplicate and can be removed.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      fc889aa2
    • R
      oprofile, x86: Check IBS capability bits 1 and 2 · 4ac945f0
      Robert Richter 提交于
      There are IBS CPUID feature flags in CPUID Fn8000_001B to detect if
      the cpu supports IBS fetch sampling (FetchSam) and/or IBS execution
      sampling (OpSam). This patch adds checks if the both features are
      available.
      
      Spec:
      
       http://support.amd.com/us/Processor_TechDocs/31116.pdfSigned-off-by: NRobert Richter <robert.richter@amd.com>
      4ac945f0
    • R
      oprofile, x86: Add support for AMD family 14h · e6341474
      Robert Richter 提交于
      This patch adds support for AMD family 14h (Ontario/Zacate) cpus.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      e6341474
    • R
      oprofile, x86: Add support for AMD family 12h · 3acbf084
      Robert Richter 提交于
      This patch adds support for AMD family 12h (Llano) cpus.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      3acbf084
    • R
      oprofile: make !CONFIG_PM function stubs static inline · cd254f29
      Robert Richter 提交于
      Make !CONFIG_PM function stubs static inline and remove section
      attribute.
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      cd254f29
    • A
      oprofile: fix linker errors · b3b3a9b6
      Anand Gadiyar 提交于
      Commit e9677b3c (oprofile, ARM: Use oprofile_arch_exit() to
      cleanup on failure) caused oprofile_perf_exit to be called
      in the cleanup path of oprofile_perf_init. The __exit tag
      for oprofile_perf_exit should therefore be dropped.
      
      The same has to be done for exit_driverfs as well, as this
      function is called from oprofile_perf_exit. Else, we get
      the following two linker errors.
      
        LD      .tmp_vmlinux1
      `oprofile_perf_exit' referenced in section `.init.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o
      make: *** [.tmp_vmlinux1] Error 1
      
        LD      .tmp_vmlinux1
      `exit_driverfs' referenced in section `.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o
      make: *** [.tmp_vmlinux1] Error 1
      Signed-off-by: NAnand Gadiyar <gadiyar@ti.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      b3b3a9b6
    • A
      oprofile: include platform_device.h to fix build break · 277dd984
      Anand Gadiyar 提交于
      oprofile_perf.c needs to include platform_device.h
      Otherwise we get the following build break.
      
        CC      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.o
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:192: warning: 'struct platform_device' declared inside parameter list
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:192: warning: its scope is only this definition or declaration, which is probably not what you want
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:201: warning: 'struct platform_device' declared inside parameter list
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:210: error: variable 'oprofile_driver' has initializer but incomplete type
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:211: error: unknown field 'driver' specified in initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:211: error: extra brace group at end of initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:211: error: (near initialization for 'oprofile_driver')
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:213: warning: excess elements in struct initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:213: warning: (near initialization for 'oprofile_driver')
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:214: error: unknown field 'resume' specified in initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:214: warning: excess elements in struct initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:214: warning: (near initialization for 'oprofile_driver')
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:215: error: unknown field 'suspend' specified in initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:215: warning: excess elements in struct initializer
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c:215: warning: (near initialization for 'oprofile_driver')
      arch/arm/oprofile/../../../drivers/oprofile/oprofile_perf.c: In function 'init_driverfs':
      Signed-off-by: NAnand Gadiyar <gadiyar@ti.com>
      Cc: Matt Fleming <matt@console-pimps.org>
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: NRobert Richter <robert.richter@amd.com>
      277dd984
    • R
      Merge remote branch 'tip/perf/core' into oprofile/core · 6268464b
      Robert Richter 提交于
      Conflicts:
      	arch/arm/oprofile/common.c
      	kernel/perf_event.c
      6268464b
    • I
      Merge branch 'tip/perf/recordmcount-2' of... · 0fdf1360
      Ingo Molnar 提交于
      Merge branch 'tip/perf/recordmcount-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
      0fdf1360
    • S
      ftrace: Rename config option HAVE_C_MCOUNT_RECORD to HAVE_C_RECORDMCOUNT · cf4db259
      Steven Rostedt 提交于
      The config option used by archs to let the build system know that
      the C version of the recordmcount works for said arch is currently
      called HAVE_C_MCOUNT_RECORD which enables BUILD_C_RECORDMCOUNT. To
      be more consistent with the name that all archs may use, it has been
      renamed to HAVE_C_RECORDMCOUNT. This will be less confusing since
      we are building a C recordmcount and not a mcount_record.
      Suggested-by: NIngo Molnar <mingo@elte.hu>
      Cc: <linux-arch@vger.kernel.org>
      Cc: Michal Marek <mmarek@suse.cz>
      Cc: linux-kbuild@vger.kernel.org
      Cc: John Reiser <jreiser@bitwagon.com>
      Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      cf4db259
    • I
      Merge branch 'perf/core' of... · d9d572a9
      Ingo Molnar 提交于
      Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
      d9d572a9
    • S
      ftrace: Remove duplicate code for 64 and 32 bit in recordmcount.c · c28d5077
      Steven Rostedt 提交于
      The elf reader for recordmcount.c had duplicate functions for both
      32 bit and 64 bit elf handling. This was due to the need of using
      the 32 and 64 bit elf structures.
      
      This patch consolidates the two by using macros to define the 32
      and 64 bit names in a recordmcount.h file, and then by just defining
      a RECORD_MCOUNT_64 macro and including recordmcount.h twice we
      create the funtions for both the 32 bit version as well as the
      64 bit version using one code source.
      
      Cc: John Reiser <jreiser@bitwagon.com>
      Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      c28d5077
    • S
      ftrace/x86: Add support for C version of recordmcount · 72441cb1
      Steven Rostedt 提交于
      This patch adds the support for the C version of recordmcount and
      compile times show ~ 12% improvement.
      
      After verifying this works, other archs can add:
      
       HAVE_C_MCOUNT_RECORD
      
      in its Kconfig and it will use the C version of recordmcount
      instead of the perl version.
      
      Cc: <linux-arch@vger.kernel.org>
      Cc: Michal Marek <mmarek@suse.cz>
      Cc: linux-kbuild@vger.kernel.org
      Cc: John Reiser <jreiser@bitwagon.com>
      Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      72441cb1
    • J
      ftrace: Add C version of recordmcount compile time code · 81d3858d
      John Reiser 提交于
      Currently, the mcount callers are found with a perl script that does
      an objdump on every file in the kernel. This is a C version of that
      same code which should increase the performance time of compiling
      the kernel with dynamic ftrace enabled.
      Signed-off-by: NJohn Reiser <jreiser@bitwagon.com>
      
      [ Updated the code to include .text.unlikely section as well as
        changing the format to follow Linux coding style. ]
      Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
      81d3858d
    • F
      x86: Barf when vmalloc and kmemcheck faults happen in NMI · ebc8827f
      Frederic Weisbecker 提交于
      In x86, faults exit by executing the iret instruction, which then
      reenables NMIs if we faulted in NMI context. Then if a fault
      happens in NMI, another NMI can nest after the fault exits.
      
      But we don't yet support nested NMIs because we have only one NMI
      stack. To prevent from that, check that vmalloc and kmemcheck
      faults don't happen in this context. Most of the other kernel faults
      in NMIs can be more easily spotted by finding explicit
      copy_from,to_user() calls on review.
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      ebc8827f
  2. 14 10月, 2010 6 次提交
  3. 13 10月, 2010 1 次提交
    • B
      tracing: Fix function-graph build warning on 32-bit · 14cae9bd
      Borislav Petkov 提交于
      Fix
      
      kernel/trace/trace_functions_graph.c: In function ‘trace_print_graph_duration’:
      kernel/trace/trace_functions_graph.c:652: warning: comparison of distinct pointer types lacks a cast
      
      when building 36-rc6 on a 32-bit due to the strict type check failing
      in the min() macro.
      Signed-off-by: NBorislav Petkov <bp@alien8.de>
      Cc: Chase Douglas <chase.douglas@canonical.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Ingo Molnar <mingo@elte.hu>
      LKML-Reference: <20100929080823.GA13595@liondog.tnic>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      14cae9bd
  4. 12 10月, 2010 8 次提交
  5. 11 10月, 2010 7 次提交