Re: [PATCH 1/1] perf, x86: bug fix for cycles:p and cycles:pp on SLM

From: Peter Zijlstra
Date: Mon Dec 15 2014 - 10:22:10 EST


On Mon, Dec 08, 2014 at 06:27:43AM -0800, kan.liang@xxxxxxxxx wrote:
> +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
> @@ -568,8 +568,8 @@ struct event_constraint intel_atom_pebs_event_constraints[] = {
> };
>
> struct event_constraint intel_slm_pebs_event_constraints[] = {
> - /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
> - INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
> + /* INST_RETIRED.ANY_P */
> + INTEL_UEVENT_CONSTRAINT(0x00c0, 0x1),

Should that not be:
INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x1),

instead?

> /* Allow all events as PEBS with no flags */
> INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
> EVENT_CONSTRAINT_END
> --
> 1.8.3.1
>
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