[PATCH v4 0/3] FD close cleanup for XE

[Daniel Charles <daniel.charles@intel.com>]

This series synchronously disables GuC scheduling during exec queue
teardown on FD close, avoiding races with queue resource teardown.

v4:
    - Patch 2: wait for pending enable/disable operations before issuing
      the early disable; skip it if the queue has no references, and
      assert the queue is referenced when kill is entered.

v3:
    - Patch 3: use a dedicated kill_wq to avoid waking all CT waiters on
      each scheduling-disable response. See patch 3 for details.

Daniel Charles (1):
  drm/xe: Synchronously wait for queue kill on FD close

Matthew Brost (2):
  drm/xe: Read scheduler message opcode under lock
  drm/xe: Disable scheduling early on FD close to avoid CAT error
    cascade

 drivers/gpu/drm/xe/xe_device.c               |   5 +
 drivers/gpu/drm/xe/xe_exec_queue.c           |  13 ++
 drivers/gpu/drm/xe/xe_exec_queue.h           |   1 +
 drivers/gpu/drm/xe/xe_exec_queue_types.h     |   2 +
 drivers/gpu/drm/xe/xe_gpu_scheduler.c        |  13 +-
 drivers/gpu/drm/xe/xe_gpu_scheduler_types.h  |   2 +-
 drivers/gpu/drm/xe/xe_gt_sriov_vf.c          |   1 +
 drivers/gpu/drm/xe/xe_guc_exec_queue_types.h |   2 +-
 drivers/gpu/drm/xe/xe_guc_submit.c           | 125 +++++++++++++++++--
 drivers/gpu/drm/xe/xe_guc_submit.h           |   1 +
 drivers/gpu/drm/xe/xe_guc_types.h            |   6 +
 11 files changed, 158 insertions(+), 13 deletions(-)

-- 
2.43.0