[PATCH v4 0/2] drm: Add GPU frequency tracepoint

[S Sebinraj <s.sebinraj@intel.com>]

Add a GPU frequency tracepoint at the DRM subsystem level.
Integrates with the Xe PMU to provide frequency tracing.

The tracepoint is exposed at:
 /sys/kernel/debug/tracing/events/power/gpu_frequency

 Format: {unsigned int state, unsigned int gpu_id}
 - state: GPU frequency in KHz
 - gpu_id: GPU clock domain identifier

S Sebinraj (2):
  drm: Add GPU frequency tracepoint at DRM level
  drm/xe: Add DRM GPU frequency tracepoint to Xe

 drivers/gpu/drm/Kconfig                   | 11 ++++++
 drivers/gpu/drm/Makefile                  |  1 +
 drivers/gpu/drm/drm_gpu_frequency_trace.c | 16 ++++++++
 drivers/gpu/drm/xe/xe_gpu_freq_trace.h    | 14 +++++++
 drivers/gpu/drm/xe/xe_pmu.c               | 26 ++++++++++++-
 drivers/gpu/drm/xe/xe_pmu_types.h         |  4 ++
 include/drm/drm_gpu_frequency_trace.h     | 47 +++++++++++++++++++++++
 7 files changed, 117 insertions(+), 2 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_gpu_frequency_trace.c
 create mode 100644 drivers/gpu/drm/xe/xe_gpu_freq_trace.h
 create mode 100644 include/drm/drm_gpu_frequency_trace.h

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2.34.1