From: Leo Yan <leo.yan@linaro.org> To: Peter Zijlstra <peterz@infradead.org>, Will Deacon <will@kernel.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Thomas Gleixner <tglx@linutronix.de>, "Ahmed S. Darwish" <a.darwish@linutronix.de>, "Ben Dooks (Codethink)" <ben.dooks@codethink.co.uk>, Paul Cercueil <paul@crapouillou.net>, Adrian Hunter <adrian.hunter@intel.com>, Kan Liang <kan.liang@linux.intel.com>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Leo Yan <leo.yan@linaro.org> Subject: [PATCH v3 0/7] arm64: perf: Proper cap_user_time* support Date: Thu, 16 Jul 2020 13:11:23 +0800 [thread overview] Message-ID: <20200716051130.4359-1-leo.yan@linaro.org> (raw) This patch set is rebased for Peter's patch set to support cap_user_time/cap_user_time_short ABI for Arm64, and export Arm arch timer counter related parameters from kernel to Perf tool. After get feedback from Ahmed, this patch set contains Ahmed's new patch to refine sched clock data accessing with raw_read_seqcount_latch(). This patch set has been rebased on mainline kernel with the latest commit 994e99a96c9b ("Merge tag 'platform-drivers-x86-v5.8-2' of git://git.infradead.org/linux-platform-drivers-x86 into master"); it has been verified with Perf tool for Arm SPE timestamp enabling. Changes from v2: - Included Ahmed's patch to use raw_read_seqcount_latch() for sched_clock's seqcount latching; - Changed to use mul_u64_u32_shr() for converting counter to ns in Arm64's arch_perf_update_userpage() (PeterZ). Ahmed S. Darwish (1): time/sched_clock: Use raw_read_seqcount_latch() Leo Yan (1): tools headers UAPI: Update tools's copy of linux/perf_event.h Peter Zijlstra (5): sched_clock: Expose struct clock_read_data arm64: perf: Implement correct cap_user_time arm64: perf: Only advertise cap_user_time for arch_timer perf: Add perf_event_mmap_page::cap_user_time_short ABI arm64: perf: Add cap_user_time_short arch/arm64/kernel/perf_event.c | 57 ++++++++++++++++++++------- include/linux/sched_clock.h | 28 +++++++++++++ include/uapi/linux/perf_event.h | 23 +++++++++-- kernel/time/sched_clock.c | 41 ++++++------------- tools/include/uapi/linux/perf_event.h | 23 +++++++++-- 5 files changed, 124 insertions(+), 48 deletions(-) -- 2.17.1
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From: Leo Yan <leo.yan@linaro.org> To: Peter Zijlstra <peterz@infradead.org>, Will Deacon <will@kernel.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Thomas Gleixner <tglx@linutronix.de>, "Ahmed S. Darwish" <a.darwish@linutronix.de>, "Ben Dooks (Codethink)" <ben.dooks@codethink.co.uk>, Paul Cercueil <paul@crapouillou.net>, Adrian Hunter <adrian.hunter@intel.com>, Kan Liang <kan.liang@linux.intel.com>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Leo Yan <leo.yan@linaro.org> Subject: [PATCH v3 0/7] arm64: perf: Proper cap_user_time* support Date: Thu, 16 Jul 2020 13:11:23 +0800 [thread overview] Message-ID: <20200716051130.4359-1-leo.yan@linaro.org> (raw) This patch set is rebased for Peter's patch set to support cap_user_time/cap_user_time_short ABI for Arm64, and export Arm arch timer counter related parameters from kernel to Perf tool. After get feedback from Ahmed, this patch set contains Ahmed's new patch to refine sched clock data accessing with raw_read_seqcount_latch(). This patch set has been rebased on mainline kernel with the latest commit 994e99a96c9b ("Merge tag 'platform-drivers-x86-v5.8-2' of git://git.infradead.org/linux-platform-drivers-x86 into master"); it has been verified with Perf tool for Arm SPE timestamp enabling. Changes from v2: - Included Ahmed's patch to use raw_read_seqcount_latch() for sched_clock's seqcount latching; - Changed to use mul_u64_u32_shr() for converting counter to ns in Arm64's arch_perf_update_userpage() (PeterZ). Ahmed S. Darwish (1): time/sched_clock: Use raw_read_seqcount_latch() Leo Yan (1): tools headers UAPI: Update tools's copy of linux/perf_event.h Peter Zijlstra (5): sched_clock: Expose struct clock_read_data arm64: perf: Implement correct cap_user_time arm64: perf: Only advertise cap_user_time for arch_timer perf: Add perf_event_mmap_page::cap_user_time_short ABI arm64: perf: Add cap_user_time_short arch/arm64/kernel/perf_event.c | 57 ++++++++++++++++++++------- include/linux/sched_clock.h | 28 +++++++++++++ include/uapi/linux/perf_event.h | 23 +++++++++-- kernel/time/sched_clock.c | 41 ++++++------------- tools/include/uapi/linux/perf_event.h | 23 +++++++++-- 5 files changed, 124 insertions(+), 48 deletions(-) -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2020-07-16 5:11 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-16 5:11 Leo Yan [this message] 2020-07-16 5:11 ` [PATCH v3 0/7] arm64: perf: Proper cap_user_time* support Leo Yan 2020-07-16 5:11 ` [PATCH v3 1/7] sched_clock: Expose struct clock_read_data Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 2/7] time/sched_clock: Use raw_read_seqcount_latch() Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 3/7] arm64: perf: Implement correct cap_user_time Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 4/7] arm64: perf: Only advertise cap_user_time for arch_timer Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 5/7] perf: Add perf_event_mmap_page::cap_user_time_short ABI Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 6/7] arm64: perf: Add cap_user_time_short Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-16 5:11 ` [PATCH v3 7/7] tools headers UAPI: Update tools's copy of linux/perf_event.h Leo Yan 2020-07-16 5:11 ` Leo Yan 2020-07-20 11:56 ` [PATCH v3 0/7] arm64: perf: Proper cap_user_time* support Will Deacon 2020-07-20 11:56 ` Will Deacon
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