• Kan Liang's avatar
    perf/x86: Fix incorrect PEBS_REGS · 9d5dcc93
    Kan Liang authored
    PEBS_REGS used as mask for the supported registers for large PEBS.
    However, the mask cannot filter the sample_regs_user/sample_regs_intr
    correctly.
    
    (1ULL << PERF_REG_X86_*) should be used to replace PERF_REG_X86_*, which
    is only the index.
    
    Rename PEBS_REGS to PEBS_GP_REGS, because the mask is only for general
    purpose registers.
    Signed-off-by: default avatarKan Liang <kan.liang@linux.intel.com>
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Cc: <stable@vger.kernel.org>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Vince Weaver <vincent.weaver@maine.edu>
    Cc: acme@kernel.org
    Cc: jolsa@kernel.org
    Fixes: 2fe1bc1f ("perf/x86: Enable free running PEBS for REGS_USER/INTR")
    Link: https://lkml.kernel.org/r/20190402194509.2832-2-kan.liang@linux.intel.com
    [ Renamed it to PEBS_GP_REGS - as 'GPRS' is used elsewhere ;-) ]
    Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
    9d5dcc93
perf_event.h 28 KB