From: Andi Kleen <[email protected]> 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]> --- arch/x86/kernel/cpu/perf_event.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index fc5eb39..4e6cdb0 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) -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
