Re: [PATCH v2 05/12] perf/x86: add cross-HT counter exclusion infrastructure

From: Peter Zijlstra
Date: Tue Oct 21 2014 - 07:18:14 EST


On Thu, Oct 09, 2014 at 06:34:39PM +0200, Stephane Eranian wrote:
> +++ b/arch/x86/kernel/cpu/perf_event.h
> @@ -71,6 +71,7 @@ struct event_constraint {
> #define PERF_X86_EVENT_COMMITTED 0x8 /* event passed commit_txn */
> #define PERF_X86_EVENT_PEBS_LD_HSW 0x10 /* haswell style datala, load */
> #define PERF_X86_EVENT_PEBS_NA_HSW 0x20 /* haswell style datala, unknown */
> +#define PERF_X86_EVENT_EXCL 0x40 /* HT exclusivity on counter */
>

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