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Message-ID: <20230309101111.444-1-ravi.bangoria@amd.com>
Date: Thu, 9 Mar 2023 15:41:08 +0530
From: Ravi Bangoria <ravi.bangoria@....com>
To: <peterz@...radead.org>
CC: <ravi.bangoria@....com>, <namhyung@...nel.org>,
<eranian@...gle.com>, <acme@...nel.org>, <mark.rutland@....com>,
<jolsa@...nel.org>, <irogers@...gle.com>, <bp@...en8.de>,
<x86@...nel.org>, <linux-perf-users@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <sandipan.das@....com>,
<ananth.narayan@....com>, <santosh.shukla@....com>
Subject: [PATCH v2 0/3] perf/ibs: Fix interface via core pmu events
IBS used to allow event creation via core pmu events with precise_ip
attribute set, but it's broken since late 2019. 1st patch does pre-
req changes, 2nd patch fixes the issue and 3rd patch adds simple perf
test for the same.
v1: https://lore.kernel.org/r/20230302092109.367-1-ravi.bangoria@amd.com
v1->v2:
- Instead of using pmu capability, use error code -ESRCH to forward
the event to different pmu.
- Rebase on v6.3-rc1
Ravi Bangoria (3):
perf/ibs: Introduce ibs_core_pmu_event()
perf/ibs: Fix interface via core pmu events
perf test: Add selftest to test IBS invocation via core pmu events
arch/x86/events/amd/core.c | 11 +++--
arch/x86/events/amd/ibs.c | 52 +++++++++++----------
arch/x86/include/asm/perf_event.h | 2 +
kernel/events/core.c | 10 ++++-
tools/perf/tests/Build | 1 +
tools/perf/tests/builtin-test.c | 1 +
tools/perf/tests/ibs-via-core-pmu.c | 70 +++++++++++++++++++++++++++++
tools/perf/tests/tests.h | 1 +
8 files changed, 121 insertions(+), 27 deletions(-)
create mode 100644 tools/perf/tests/ibs-via-core-pmu.c
--
2.39.2
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