linux-kernel - [RESEND][PATCH v3 0/7] perf/amd/ibs: Add Zen5 support

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Message-ID: <20250205060547.1337-1-ravi.bangoria@amd.com>
Date: Wed, 5 Feb 2025 06:05:40 +0000
From: Ravi Bangoria <ravi.bangoria@....com>
To: <peterz@...radead.org>, <acme@...nel.org>, <namhyung@...nel.org>
CC: <ravi.bangoria@....com>, <mingo@...hat.com>, <eranian@...gle.com>,
	<irogers@...gle.com>, <jolsa@...nel.org>, <bp@...en8.de>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>, <linux-perf-users@...r.kernel.org>,
	<santosh.shukla@....com>, <ananth.narayan@....com>, <sandipan.das@....com>
Subject: [RESEND][PATCH v3 0/7] perf/amd/ibs: Add Zen5 support

IBS on Zen5:
- introduced Load Latency filtering capability.
- shows DTLB and page size information differently from prior generations.

Incorporate these changes into IBS kernel driver as well as perf tool.
Also include a perf unit-test to test IBS sample period constraints.

Patches are prepared on peterz/queue/perf/core (cffa473a06d2).

v2: https://lore.kernel.org/r/20241218121437.1717-1-ravi.bangoria@amd.com

v2->v3:
 - The patch series to fix IBS sample period computation [1] is picked up
   by Peter except the last patch which added unit test in perf tool.
   Include it in this series instead of sending it independently.
 - No changes otherwise.

[1]: https://lore.kernel.org/r/20250115054438.1021-1-ravi.bangoria@amd.com

Ravi Bangoria (7):
  perf/amd/ibs: Add support for OP Load Latency Filtering
  perf/amd/ibs: Update DTLB/PageSize decode logic
  perf amd ibs: Sync arch/x86/include/asm/amd-ibs.h header with the
    kernel
  perf amd ibs: Add Load Latency bits in raw dump
  perf amd ibs: Incorporate Zen5 DTLB and PageSize information
  perf mem/c2c amd: Add ldlat support
  perf test amd ibs: Add sample period unit test

 arch/x86/events/amd/ibs.c                  | 116 ++-
 arch/x86/include/asm/amd-ibs.h             |   3 +-
 arch/x86/include/asm/perf_event.h          |   4 +
 tools/arch/x86/include/asm/amd-ibs.h       |   3 +-
 tools/perf/Documentation/perf-amd-ibs.txt  |   9 +
 tools/perf/Documentation/perf-c2c.txt      |  10 +-
 tools/perf/Documentation/perf-mem.txt      |  12 +-
 tools/perf/arch/x86/include/arch-tests.h   |   1 +
 tools/perf/arch/x86/tests/Build            |   1 +
 tools/perf/arch/x86/tests/amd-ibs-period.c | 951 +++++++++++++++++++++
 tools/perf/arch/x86/tests/arch-tests.c     |   2 +
 tools/perf/arch/x86/util/mem-events.c      |   6 +
 tools/perf/arch/x86/util/mem-events.h      |   1 +
 tools/perf/arch/x86/util/pmu.c             |  20 +-
 tools/perf/tests/shell/test_data_symbol.sh |  29 +-
 tools/perf/util/amd-sample-raw.c           |  77 +-
 tools/perf/util/pmu.c                      |  11 +
 tools/perf/util/pmu.h                      |   2 +
 18 files changed, 1224 insertions(+), 34 deletions(-)
 create mode 100644 tools/perf/arch/x86/tests/amd-ibs-period.c

-- 
2.43.0