From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@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: [RFC V1 00/11] arm64/perf: Enable branch stack sampling
Date: Mon, 24 Jan 2022 10:00:42 +0530 [thread overview]
Message-ID: <1642998653-21377-1-git-send-email-anshuman.khandual@arm.com> (raw)
This series enables perf branch stack sampling support on arm64 platform
via a new arch feature called Branch Record Buffer Extension (BRBE). All
relevant register definitions could be accessed here.
https://developer.arm.com/documentation/ddi0601/2021-12/AArch64-Registers
The last two patches extend the perf ABI to accommodate additional branch
information that can be captured in BRBE. This series applies on v5.17-rc1.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-perf-users@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (11):
perf: Consolidate branch sample filter helpers
arm64/perf: Add register definitions for BRBE
arm64/perf: Update struct arm_pmu for BRBE
arm64/perf: Update struct pmu_hw_events for BRBE
arm64/perf: Detect support for BRBE
arm64/perf: Drive BRBE from perf event states
arm64/perf: Add BRBE driver
arm64/perf: Enable branch stack sampling
perf: Add more generic branch types
perf: Expand perf_branch_entry.type
perf: Capture branch privilege information
arch/arm64/include/asm/sysreg.h | 216 ++++++++++++
arch/arm64/kernel/perf_event.c | 48 +++
arch/x86/events/intel/lbr.c | 4 +-
drivers/perf/Kconfig | 11 +
drivers/perf/Makefile | 1 +
drivers/perf/arm_pmu.c | 65 +++-
drivers/perf/arm_pmu_brbe.c | 432 +++++++++++++++++++++++
drivers/perf/arm_pmu_brbe.h | 259 ++++++++++++++
drivers/perf/arm_pmu_platform.c | 34 ++
include/linux/perf/arm_pmu.h | 49 +++
include/linux/perf_event.h | 24 ++
include/uapi/linux/perf_event.h | 26 +-
kernel/events/core.c | 9 +-
tools/include/uapi/linux/perf_event.h | 26 +-
tools/perf/Documentation/perf-record.txt | 1 +
tools/perf/util/branch.c | 13 +-
tools/perf/util/parse-branch-options.c | 1 +
17 files changed, 1202 insertions(+), 17 deletions(-)
create mode 100644 drivers/perf/arm_pmu_brbe.c
create mode 100644 drivers/perf/arm_pmu_brbe.h
--
2.25.1
next reply other threads:[~2022-01-24 4:31 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 4:30 Anshuman Khandual [this message]
2022-01-24 4:30 ` [RFC V1 01/11] perf: Consolidate branch sample filter helpers Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 02/11] arm64/perf: Add register definitions for BRBE Anshuman Khandual
2022-01-24 14:05 ` Marc Zyngier
2022-01-25 5:04 ` Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 03/11] arm64/perf: Update struct arm_pmu " Anshuman Khandual
2022-01-26 16:59 ` Rob Herring
2022-01-28 3:38 ` Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 04/11] arm64/perf: Update struct pmu_hw_events " Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 05/11] arm64/perf: Detect support " Anshuman Khandual
2022-01-26 17:18 ` Rob Herring
2022-01-28 3:27 ` Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 06/11] arm64/perf: Drive BRBE from perf event states Anshuman Khandual
2022-01-26 17:07 ` Rob Herring
2022-01-27 12:20 ` Anshuman Khandual
2022-01-27 14:31 ` Rob Herring
2022-01-24 4:30 ` [RFC V1 07/11] arm64/perf: Add BRBE driver Anshuman Khandual
2022-01-24 18:11 ` James Clark
2022-01-24 18:15 ` James Clark
2022-01-24 4:30 ` [RFC V1 08/11] arm64/perf: Enable branch stack sampling Anshuman Khandual
2022-01-24 18:02 ` James Clark
2022-01-24 4:30 ` [RFC V1 09/11] perf: Add more generic branch types Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 10/11] perf: Expand perf_branch_entry.type Anshuman Khandual
2022-01-25 16:58 ` James Clark
2022-01-28 4:14 ` Anshuman Khandual
2022-01-26 16:47 ` Rob Herring
2022-01-27 10:41 ` Anshuman Khandual
2022-01-24 4:30 ` [RFC V1 11/11] perf: Capture branch privilege information Anshuman Khandual
2022-01-25 15:39 ` James Clark
2022-02-02 11:11 ` Anshuman Khandual
2022-01-26 17:27 ` James Clark
2022-03-14 6:47 ` Anshuman Khandual
2022-01-25 16:25 ` [PATCH 0/1] perf test: Add branch stack sampling tests for ARM64 German Gomez
2022-01-25 16:25 ` [PATCH 1/1] " German Gomez
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