[PATCH 0/2] drm/msm: Fixes/updates for perfetto profiling

[Rob Clark]

From: Rob Clark <robdclark at chromium.org>

A couple kernel side things I realized I needed in the process of
implementing performance-counter and render-stage support for perfetto,
the first patch fixes the MSM_PARAM_TIMESTAMP query which was just
wrong on a5xx/a6xx (ALWAYS_COUNT vs ALWAYS_ON).  The second adds a
way for userspace to determine whether the device has suspended since
the last sampling period (which means counters have lost their state
and configuration).

I am a bit tempted to add a way that a CAP_SYS_ADMIN user could ask
the GPU to not suspend (until the drm_file is closed), but so far
I've managed to avoid needing this.

Rob Clark (2):
  drm/msm: Fix a5xx/a6xx timestamps
  drm/msm: Add param for userspace to query suspend count

 drivers/gpu/drm/msm/adreno/a5xx_gpu.c   | 4 ++--
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 4 ++--
 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++
 drivers/gpu/drm/msm/msm_drv.c           | 1 +
 drivers/gpu/drm/msm/msm_gpu.c           | 2 ++
 drivers/gpu/drm/msm/msm_gpu.h           | 2 ++
 include/uapi/drm/msm_drm.h              | 1 +
 7 files changed, 13 insertions(+), 4 deletions(-)

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2.29.2