[PATCH v2 0/3] Rework work queue usage
Matthew Brost
matthew.brost at intel.com
Mon Apr 1 22:19:10 UTC 2024
Avoid sleeping or grabbing locks in work queues shared with the system.
Recent changes to work queues [1] have exposed deadlocks [2] in Xe.
I believe only patch #1 is required to unblock CI in 6.9rc1 [2] but
likely all patches should be included in stable kernels.
Matt
[1] https://lore.kernel.org/lkml/Ze7Jz9cQcUMtCqfk@slm.duckdns.org/
[2] https://intel-gfx-ci.01.org/tree/intel-xe/xe-984-093d82c02921344d8d400989af156aaf79b9d961/bat-adlp-7/igt_runner0.txt
Matthew Brost (3):
drm/xe: Use ordered wq for preempt fence waiting
drm/xe: Use device, gt ordered work queues for resource cleanup
drm/xe: Use ordered WQ for TLB invalidation fences
drivers/gpu/drm/xe/xe_device.c | 11 ++++++++++-
drivers/gpu/drm/xe/xe_device_types.h | 8 +++++++-
drivers/gpu/drm/xe/xe_execlist.c | 2 +-
drivers/gpu/drm/xe/xe_gt_types.h | 5 ++++-
drivers/gpu/drm/xe/xe_guc_submit.c | 2 +-
drivers/gpu/drm/xe/xe_preempt_fence.c | 2 +-
drivers/gpu/drm/xe/xe_pt.c | 2 +-
drivers/gpu/drm/xe/xe_vm.c | 4 ++--
8 files changed, 27 insertions(+), 9 deletions(-)
--
2.34.1
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