[PATCH v3 0/5] drm/xe: Fix races on fdinfo

[Lucas De Marchi]

The current reading of engine utilization has same races. This should
fix most of them while also drastically reducing the update rate needed
on "normal apps".

I left tests/xe_drm_fdinfo --r utilization-single-full-load-destroy-queue
running on 2 systems and saw no failures after 100 iterations about
execution cycles being 0.

v3:
  - Fix the wait for exec queues to validate user args
  - Include new patch to extract force wake get.

Lucas De Marchi (5):
  drm/xe: Add trace to lrc timestamp update
  drm/xe: Stop accumulating LRC timestamp on job_free
  drm/xe: Reword exec_queue.lock doc
  drm/xe: Wait on killed exec queues
  drm/xe: Sample gpu timestamp closer to exec queues

 drivers/gpu/drm/xe/Makefile          |  1 +
 drivers/gpu/drm/xe/xe_device_types.h | 11 +++--
 drivers/gpu/drm/xe/xe_drm_client.c   | 68 ++++++++++++++++++----------
 drivers/gpu/drm/xe/xe_exec_queue.c   | 12 +++++
 drivers/gpu/drm/xe/xe_guc_submit.c   |  2 -
 drivers/gpu/drm/xe/xe_lrc.c          |  3 ++
 drivers/gpu/drm/xe/xe_trace_lrc.c    |  9 ++++
 drivers/gpu/drm/xe/xe_trace_lrc.h    | 52 +++++++++++++++++++++
 8 files changed, 130 insertions(+), 28 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_trace_lrc.c
 create mode 100644 drivers/gpu/drm/xe/xe_trace_lrc.h

-- 
2.47.0