[PATCH v3 00/10] PMU Support for per-engine-class activity

[Riana Tauro]

The first 5 patches of the series are taken from
https://patchwork.freedesktop.org/series/139121/. They are added
only for compilation and does not require review.

This series adds support for per-engine-class activity

PMU provides two counters (engine-active-ticks, total-ticks)
to calculate engine activity. When querying this, user must group
these 2 counters using the perf_event group mechanism to ensure 
both counters are sampled together.

To list the events

	./perf list
		xe_0000_03_00.0/engine-active-ticks/	[Kernel PMU event]
		xe_0000_03_00.0/total-ticks/		[Kernel PMU event]

The formats to be used with the above are

	engine_class    - config:20-27
        engine_instance - config:12-19
	gt_id           - config:60-63

The events can then be read using perf tool

	./perf stat -e xe_0000_03_00.0/engine-active-ticks,gt_id=0,
				       engine_class=0,engine_instance=0/,
		       xe_0000_03_00.0/total-ticks,gt_id=0,
				       engine_class=0,engine_instance=0/ 
		       -I 1000

Engine activity can then be calculated as below
engine activity % = (engine active ticks/total ticks) * 100


Rev2: Add trace functions
      fix cosmetic review comments

Rev3: add engine class and instance as parameters
      bump minimum guc to 70.36.0
      replace busyness with engine activity

Aravind Iddamsetty (1):
  drm/xe/pmu: Enable PMU interface

Riana Tauro (6):
  drm/xe/xe_pmu: add fixes for base PMU
  drm/xe: Add per-engine-class activity support
  drm/xe/trace: Add trace for engine activity
  drm/xe/guc: Expose engine activity only for supported GuC version
  drm/xe/pmu: Add PMU support for per-engine-class activity
  drm/xe/guc: Bump minimum required GuC version to v70.36.0

Vinay Belgaumkar (3):
  drm/xe: Add locks in gtidle code
  drm/xe/pmu: Add GT C6 events
  drm/xe/pmu: Add GT frequency events

 drivers/gpu/drm/xe/Makefile                   |    3 +
 drivers/gpu/drm/xe/abi/guc_actions_abi.h      |    1 +
 drivers/gpu/drm/xe/regs/xe_gt_regs.h          |    2 +
 drivers/gpu/drm/xe/xe_device.c                |    3 +
 drivers/gpu/drm/xe/xe_device_types.h          |    4 +
 drivers/gpu/drm/xe/xe_gt.c                    |    5 +
 drivers/gpu/drm/xe/xe_gt_idle.c               |   23 +-
 drivers/gpu/drm/xe/xe_gt_idle.h               |    1 +
 drivers/gpu/drm/xe/xe_gt_idle_types.h         |    3 +
 drivers/gpu/drm/xe/xe_guc.c                   |    5 +
 drivers/gpu/drm/xe/xe_guc_engine_activity.c   |  358 +++++
 drivers/gpu/drm/xe/xe_guc_engine_activity.h   |   19 +
 .../gpu/drm/xe/xe_guc_engine_activity_types.h |   89 ++
 drivers/gpu/drm/xe/xe_guc_fwif.h              |   19 +
 drivers/gpu/drm/xe/xe_guc_types.h             |    4 +
 drivers/gpu/drm/xe/xe_module.c                |    5 +
 drivers/gpu/drm/xe/xe_pmu.c                   | 1163 +++++++++++++++++
 drivers/gpu/drm/xe/xe_pmu.h                   |   30 +
 drivers/gpu/drm/xe/xe_pmu_types.h             |  154 +++
 drivers/gpu/drm/xe/xe_trace_guc.h             |   49 +
 drivers/gpu/drm/xe/xe_uc.c                    |    3 +
 drivers/gpu/drm/xe/xe_uc_fw.c                 |   28 +-
 22 files changed, 1954 insertions(+), 17 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_guc_engine_activity.c
 create mode 100644 drivers/gpu/drm/xe/xe_guc_engine_activity.h
 create mode 100644 drivers/gpu/drm/xe/xe_guc_engine_activity_types.h
 create mode 100644 drivers/gpu/drm/xe/xe_pmu.c
 create mode 100644 drivers/gpu/drm/xe/xe_pmu.h
 create mode 100644 drivers/gpu/drm/xe/xe_pmu_types.h

-- 
2.47.1