Re: [PATCH 1/1] perf/x86/intel: Broadwell support LBR callstack

From: Andi Kleen
Date: Thu Apr 02 2015 - 15:46:05 EST


On Thu, Apr 02, 2015 at 04:12:57AM -0400, kan.liang@xxxxxxxxx wrote:
> From: Kan Liang <kan.liang@xxxxxxxxx>
>
> Same as Haswell, Broadwell also support LBR callstack.
>
> Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx>

Thanks looks good.

Acked-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

-Andi


> ---
> arch/x86/kernel/cpu/perf_event_intel.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
> index fc6dbc4..4b61fe9 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel.c
> @@ -2787,7 +2787,7 @@ __init int intel_pmu_init(void)
> hw_cache_extra_regs[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = HSW_DEMAND_WRITE|
> BDW_L3_MISS_LOCAL|HSW_SNOOP_DRAM;
>
> - intel_pmu_lbr_init_snb();
> + intel_pmu_lbr_init_hsw();
>
> x86_pmu.event_constraints = intel_bdw_event_constraints;
> x86_pmu.pebs_constraints = intel_hsw_pebs_event_constraints;
> --
> 1.8.3.1
>

--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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