linux-kernel - [PATCH V2 00/13] Support Lunar Lake and Arrow Lake core PMU

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Message-Id: <20240625182256.291914-1-kan.liang@linux.intel.com>
Date: Tue, 25 Jun 2024 11:22:43 -0700
From: kan.liang@...ux.intel.com
To: peterz@...radead.org,
	mingo@...nel.org,
	acme@...nel.org,
	namhyung@...nel.org,
	irogers@...gle.com,
	adrian.hunter@...el.com,
	alexander.shishkin@...ux.intel.com,
	linux-kernel@...r.kernel.org
Cc: ak@...ux.intel.com,
	eranian@...gle.com,
	Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V2 00/13] Support Lunar Lake and Arrow Lake core PMU

From: Kan Liang <kan.liang@...ux.intel.com>

Changes since V1:
- Add x86/intel_pmu_max_num_pebs/counters/counters_fixed()
- Rename model-specific pebs_latency_data functions
- Rename V6 counter MSRs

>From the core PMU' perspective, the Lunar Lake and Arrow Lake are the
same, which are similar to the previous generation Meteor Lake. Both are
hybrid platforms, with e-core and p-core.

The key differences include:
- The e-core supports 3 new fixed counters
- The p-core supports an updated PEBS Data Source format
- More GP counters (Updated event constraint table)
- New Architectural performance monitoring V6
  (New Perfmon MSRs aliasing, umask2, eq).
- New PEBS format V6 (Counters Snapshotting group)
- New RDPMC metrics clear mode

The details for the above new features can be found in the Intel
Architecture Instruction Set Extensions and Future Features (052).
https://cdrdv2.intel.com/v1/dl/getContent/671368

The counters may not be continuous anymore. Patch 1-2 converts the max
number of counters to a mask of counters. The change is a generic change
which impacts all X86 platforms.

Patch 3-4 supports all the legacy features on LNL and ARL.

Patch 5-7 supports the new Architectural performance monitoring V6.

Patch 8-11 supports the new PEBS format V6.

Patch 12 supports the new RDPMC metrics clear mode.

Kan Liang (13):
  perf/x86/intel: Support the PEBS event mask
  perf/x86: Support counter mask
  perf/x86: Add Lunar Lake and Arrow Lake support
  perf/x86/intel: Rename model-specific pebs_latency_data functions
  perf/x86/intel: Support new data source for Lunar Lake
  perf/x86: Add config_mask to represent EVENTSEL bitmask
  perf/x86/intel: Support PERFEVTSEL extension
  perf/x86/intel: Support Perfmon MSRs aliasing
  perf/x86: Extend event update interface
  perf: Extend perf_output_read
  perf/x86/intel: Move PEBS event update after the sample output
  perf/x86/intel: Support PEBS counters snapshotting
  perf/x86/intel: Support RDPMC metrics clear mode

 arch/x86/events/amd/core.c           |  26 +-
 arch/x86/events/core.c               | 123 +++----
 arch/x86/events/intel/core.c         | 471 ++++++++++++++++++++-------
 arch/x86/events/intel/ds.c           | 288 +++++++++++++---
 arch/x86/events/intel/knc.c          |   2 +-
 arch/x86/events/intel/p4.c           |  12 +-
 arch/x86/events/intel/p6.c           |   2 +-
 arch/x86/events/perf_event.h         | 105 +++++-
 arch/x86/events/perf_event_flags.h   |   2 +-
 arch/x86/events/zhaoxin/core.c       |  14 +-
 arch/x86/include/asm/intel_ds.h      |   1 +
 arch/x86/include/asm/msr-index.h     |   6 +
 arch/x86/include/asm/perf_event.h    |  27 ++
 include/uapi/linux/perf_event.h      |   6 +-
 kernel/events/core.c                 |  15 +-
 tools/perf/Documentation/topdown.txt |   9 +-
 16 files changed, 839 insertions(+), 270 deletions(-)

-- 
2.35.1