[GIT]: libpfm4 branch, master, updated. 01c6dcedc9330442bac2834ddcb7ea6bfc525e9d

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commit 01c6dcedc9330442bac2834ddcb7ea6bfc525e9d
Author: Stephane Eranian <er...@gm...>
Date:   Fri Nov 19 16:16:57 2010 +0100

    add Intel Nehalem/Westmere OFFCORE_RESPONSE event support
    
        The OFFCORE_RESPONSE is a special event available on Intel
        Nehalem and Westmere based processor. It is documented in
        Intel Vol3b Section 30.6.1.3.
    
        The event requires an extra MSR to be programmed in order
        to count properly. The extra MSR contains the actual umasks
        for the event.
    
        OFFCORE_RESPONSE is a very useful event for people interested
        in measuring the memory subsystem. Nehalem offers once instance
        of the event: OFFCORE_RESPONSE_0. Westmere offers two instances
        which can be measured concurrently: OFFCORE_RESPONSE_0 and
        OFFCORE_RESPONSE_1.
    
        The umasks are divided in two groups: request, response. The
        request filters the type of memory access you want to measure,
        whereas the response filters the type of location where the
        cacheline is serviced. User must provide at least on umask in
        each group. The library checks for this constraint.
    
        The support for the event is provided for both the RAW, i.e.,
        pure HW mode, and also for perf_events, thru the dedicated
        entry point: pfm_get_perf_event_encoding().
    
        The support for OFFCORE_RESPONSE in perf_events should appear
        in 2.6.37. A patch was recently posted on LKML by Andi Kleen.
    
        The man pages for Intel Nehalem and Westmere have been updated
        accordingly.
    
        Signed-off-by: Stephane Eranian <er...@gm...>

-----------------------------------------------------------------------

Summary of changes:
 docs/man3/libpfm_intel_nhm.3  |   17 +++
 docs/man3/libpfm_intel_wsm.3  |   18 +++
 lib/events/intel_nhm_events.h |  157 +++++++++++-----------------
 lib/events/intel_wsm_events.h |  229 ++++++++++++++++++++++++++++++++++++++++-
 lib/pfmlib_intel_x86.c        |   61 +++++++-----
 lib/pfmlib_intel_x86_priv.h   |    1 +
 lib/pfmlib_perf_event.c       |   15 +++-
 lib/pfmlib_priv.h             |    1 +
 8 files changed, 376 insertions(+), 123 deletions(-)


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