From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, kim.phillips@amd.com,
acme@redhat.com, jolsa@redhat.com, songliubraving@fb.com,
mpe@ellerman.id.au, maddy@linux.ibm.com
Subject: Re: [PATCH v2 03/13] perf/x86/amd: add AMD Fam19h Branch Sampling support
Date: Fri, 12 Nov 2021 17:02:13 +0100 [thread overview]
Message-ID: <YY6QBXs0sM16DdbV@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20211111084415.663951-4-eranian@google.com>
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().
next prev parent reply other threads:[~2021-11-12 16:02 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-11 8:44 [PATCH v2 00/13] perf/x86/amd: Add AMD Fam19h Branch Sampling support Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 01/13] perf/core: add perf_clear_branch_entry_bitfields() helper Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 02/13] x86/cpufeatures: add AMD Fam19h Branch Sampling feature Stephane Eranian
2021-11-11 12:36 ` Borislav Petkov
2021-11-11 8:44 ` [PATCH v2 03/13] perf/x86/amd: add AMD Fam19h Branch Sampling support Stephane Eranian
2021-11-12 16:02 ` Peter Zijlstra [this message]
2021-11-16 7:48 ` Stephane Eranian
2021-11-16 8:29 ` Peter Zijlstra
2021-11-17 7:23 ` Stephane Eranian
2021-11-18 12:20 ` Peter Zijlstra
2021-11-18 12:32 ` Peter Zijlstra
2021-11-29 22:07 ` Stephane Eranian
2021-11-12 16:23 ` Peter Zijlstra
2021-11-12 16:25 ` Peter Zijlstra
2021-11-12 16:39 ` Peter Zijlstra
2021-11-11 8:44 ` [PATCH v2 04/13] perf/x86/amd: add branch-brs helper event for Fam19h BRS Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 05/13] perf/x86/amd: enable branch sampling priv level filtering Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 06/13] perf/x86/amd: add AMD branch sampling period adjustment Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 07/13] perf/x86/amd: make Zen3 branch sampling opt-in Stephane Eranian
2021-11-11 8:44 ` [PATCH 08/13] ACPI: add perf low power callback Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 09/13] perf/x86/amd: add idle hooks for branch sampling Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 10/13] perf tools: add branch-brs as a new event Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 11/13] perf tools: improve IBS error handling Stephane Eranian
2021-11-16 16:46 ` Kim Phillips
2021-11-17 9:15 ` Stephane Eranian
2021-11-18 21:02 ` Kim Phillips
2021-11-11 8:44 ` [PATCH v2 12/13] perf tools: improve error handling of AMD Branch Sampling Stephane Eranian
2021-11-11 8:44 ` [PATCH v2 13/13] perf report: add addr_from/addr_to sort dimensions Stephane Eranian
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