lkml.org 
[lkml]   [2021]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 03/13] perf/x86/amd: add AMD Fam19h Branch Sampling support
On Thu, Nov 11, 2021 at 12:44:05AM -0800, Stephane Eranian wrote:
> diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
> index 38b2c779146f..28559557f966 100644
> --- a/arch/x86/events/core.c
> +++ b/arch/x86/events/core.c
> @@ -683,11 +683,16 @@ void x86_pmu_disable_all(void)
>
> if (!test_bit(idx, cpuc->active_mask))
> continue;
> +
> + if (is_amd_brs(hwc))
> + amd_brs_disable();
> +
> rdmsrl(x86_pmu_config_addr(idx), val);
> if (!(val & ARCH_PERFMON_EVENTSEL_ENABLE))
> continue;
> val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
> wrmsrl(x86_pmu_config_addr(idx), val);
> +
> if (is_counter_pair(hwc))
> wrmsrl(x86_pmu_config_addr(idx + 1), 0);
> }

Please, stick that in amd_pmu_disable_all().

\
 
 \ /
  Last update: 2021-11-12 17:03    [W:0.277 / U:0.596 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site