[PATCH 0/5] perf: Add support for hardware breakpoint address masks

[Jacob Shin]

The following patchset adds address masks to existing perf hardware
breakpoint mechanism to allow trapping on an address range (currently
only single address) on supported architectures.

perf uapi is updated, x86 AMD implementation (for AMD Family 16h and
beyond) is provided, and perf tool has been extended to do:

  $ perf stat -e mem:0x1000:w:0xf a.out
                              ^^^
                              "don't care" bit mask

  which will count writes to [0x1000 ~ 0x1010)

Jacob Shin (2):
  perf: Add hardware breakpoint address mask
  perf, x86: AMD implementation for hardware breakpoint address mask

Suravee Suthikulpanit (3):
  perf tools: Add breakpoint address mask to the mem event parser
  perf tools: Add breakpoint address mask syntax to perf list and
    documentation
  perf tools: Add breakpoint address mask test case to
    tests/parse-events

 arch/Kconfig                             |    4 ++++
 arch/x86/Kconfig                         |    1 +
 arch/x86/include/asm/cpufeature.h        |    2 ++
 arch/x86/include/asm/debugreg.h          |    7 ++++++
 arch/x86/include/asm/hw_breakpoint.h     |    6 ++++++
 arch/x86/include/uapi/asm/msr-index.h    |    6 ++++++
 arch/x86/kernel/cpu/amd.c                |   19 +++++++++++++++++
 arch/x86/kernel/hw_breakpoint.c          |    5 +++++
 include/linux/hw_breakpoint.h            |    6 ++++++
 include/uapi/linux/perf_event.h          |    5 ++++-
 kernel/events/hw_breakpoint.c            |    3 +++
 tools/perf/Documentation/perf-record.txt |   14 ++++++++----
 tools/perf/tests/parse-events.c          |   34 ++++++++++++++++++++++++++++++
 tools/perf/util/parse-events.c           |    5 +++--
 tools/perf/util/parse-events.h           |    2 +-
 tools/perf/util/parse-events.y           |   14 ++++++++++--
 16 files changed, 123 insertions(+), 10 deletions(-)

-- 
1.7.9.5


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