drm/xe: Wait on in-syncs when swicthing to dma-fence mode

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If a dma-fence submission has in-fences and pagefault queues are running
work, there is little incentive to kick the pagefault queues off the
hardware until the dma-fence submission is ready to run. Therefore, wait
on the in-fences of the dma-fence submission before removing the
pagefault queues from the hardware.

v2:
 - Fix kernel doc (CI)
 - Don't wait under lock (Thomas)
 - Make wait interruptable

Suggested-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20251212182847.1683222-6-matthew.brost@intel.com

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This commit is contained in:

Matthew Brost 2025-12-12 10:28:45 -08:00

parent 8533051ce9

commit 4ac9048d05

5 changed files with 87 additions and 11 deletions

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9

drivers/gpu/drm/xe/xe_exec.c

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55

drivers/gpu/drm/xe/xe_hw_engine_group.c

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4

drivers/gpu/drm/xe/xe_hw_engine_group.h

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28

drivers/gpu/drm/xe/xe_sync.c

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2

drivers/gpu/drm/xe/xe_sync.h

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