diff options
| author | Andi Kleen <[email protected]> | 2014-09-24 07:34:46 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2014-11-16 11:41:54 +0100 |
| commit | 7550ddffe4c8040db31c66e5bd64531e2916bbf1 (patch) | |
| tree | fe7f49a866cf71ac34fb8d97ce06eef51875f371 | |
| parent | c0737ce453bdccd0d09aa4f916795533a4e02fef (diff) | |
perf/x86: Add INTEL_FLAGS_UEVENT_CONSTRAINT
Add a FLAGS_UEVENT_CONSTRAINT macro that allows us to
match on event+umask, and in additional all flags.
This is needed to ensure the INV and CMASK fields
are zero for specific events, as this can cause undefined
behavior.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Maria Dimakopoulou <[email protected]>
Cc: Mark Davies <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index fc5eb390b368..4e6cdb0ddc70 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -253,6 +253,10 @@ struct cpu_hw_events { #define INTEL_UEVENT_CONSTRAINT(c, n) \ EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK) +/* Like UEVENT_CONSTRAINT, but match flags too */ +#define INTEL_FLAGS_UEVENT_CONSTRAINT(c, n) \ + EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS) + #define INTEL_PLD_CONSTRAINT(c, n) \ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LDLAT) |