From: Anshuman Khandual <anshuman.khandual@arm.com>
To: Randy Dunlap <rdunlap@infradead.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, will@kernel.org,
catalin.marinas@arm.com, mark.rutland@arm.com
Cc: Mark Brown <broonie@kernel.org>,
James Clark <james.clark@arm.com>, Rob Herring <robh@kernel.org>,
Marc Zyngier <maz@kernel.org>,
Suzuki Poulose <suzuki.poulose@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
linux-perf-users@vger.kernel.org
Subject: Re: [PATCH V13 - RESEND 06/10] arm64/perf: Enable branch stack events via FEAT_BRBE
Date: Wed, 12 Jul 2023 08:12:44 +0530 [thread overview]
Message-ID: <b234c859-75f4-ca3d-eee6-17af7680365d@arm.com> (raw)
In-Reply-To: <cde1fd99-04ae-f604-a5d0-5af3ddf57f7d@infradead.org>
On 7/12/23 00:56, Randy Dunlap wrote:
> Hi--
>
> On 7/11/23 01:24, Anshuman Khandual wrote:
>> diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
>> index f4572a5cca72..7c8448051741 100644
>> --- a/drivers/perf/Kconfig
>> +++ b/drivers/perf/Kconfig
>> @@ -180,6 +180,17 @@ config ARM_SPE_PMU
>> Extension, which provides periodic sampling of operations in
>> the CPU pipeline and reports this via the perf AUX interface.
>>
>> +config ARM64_BRBE
>> + bool "Enable support for Branch Record Buffer Extension (BRBE)"
>> + depends on PERF_EVENTS && ARM64 && ARM_PMU
>> + default y
>> + help
>> + Enable perf support for Branch Record Buffer Extension (BRBE) which
>> + records all branches taken in an execution path. This supports some
>> + branch types and privilege based filtering. It captured additional
>
> preferably:
> captures
Agreed, will change.
>
>> + relevant information such as cycle count, misprediction and branch
>> + type, branch privilege level etc.
>
next prev parent reply other threads:[~2023-07-12 2:43 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-11 8:24 [PATCH V13 - RESEND 00/10] arm64/perf: Enable branch stack sampling Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 01/10] drivers: perf: arm_pmu: Add new sched_task() callback Anshuman Khandual
2023-08-10 5:05 ` Anshuman Khandual
2023-08-10 9:41 ` Will Deacon
2023-08-10 11:49 ` Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 02/10] arm64/perf: Add BRBE registers and fields Anshuman Khandual
2023-07-28 16:20 ` Will Deacon
2023-07-28 16:52 ` James Clark
2023-07-31 2:33 ` Anshuman Khandual
2023-07-31 8:07 ` James Clark
2023-07-31 9:06 ` Mark Rutland
2023-07-31 12:19 ` Anshuman Khandual
2023-08-15 10:17 ` James Clark
2023-08-15 13:05 ` Mark Rutland
2023-08-15 20:35 ` Peter Zijlstra
2023-07-11 8:24 ` [PATCH V13 - RESEND 03/10] arm64/perf: Add branch stack support in struct arm_pmu Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 04/10] arm64/perf: Add branch stack support in struct pmu_hw_events Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 05/10] arm64/perf: Add branch stack support in ARMV8 PMU Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 06/10] arm64/perf: Enable branch stack events via FEAT_BRBE Anshuman Khandual
2023-07-11 19:26 ` Randy Dunlap
2023-07-12 2:42 ` Anshuman Khandual [this message]
2023-07-25 7:12 ` Yang Shen
2023-07-25 11:42 ` Anshuman Khandual
2023-07-25 13:29 ` Suzuki K Poulose
2023-07-26 5:32 ` Anshuman Khandual
2023-08-02 12:40 ` Suzuki K Poulose
2023-08-03 2:39 ` Anshuman Khandual
2023-07-26 6:26 ` Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 07/10] arm64/perf: Add PERF_ATTACH_TASK_DATA to events with has_branch_stack() Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 08/10] arm64/perf: Add struct brbe_regset helper functions Anshuman Khandual
2023-07-11 8:24 ` [PATCH V13 - RESEND 09/10] arm64/perf: Implement branch records save on task sched out Anshuman Khandual
2023-08-02 11:59 ` Rajnesh Kanwal
2023-08-02 19:16 ` Marc Zyngier
2023-07-11 8:24 ` [PATCH V13 - RESEND 10/10] arm64/perf: Implement branch records save on PMU IRQ Anshuman Khandual
2023-07-31 13:05 ` [PATCH V13 - RESEND 00/10] arm64/perf: Enable branch stack sampling Will Deacon
2023-08-18 3:12 ` Anshuman Khandual
2023-08-18 17:56 ` Will Deacon
2023-08-21 8:53 ` Anshuman Khandual
2023-09-27 8:37 ` Anshuman Khandual
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