drm/sched: Set error to s_fence if HW job submission failed.

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Problem:
When run_job fails and HW fence returned is NULL we still signal
the s_fence to avoid hangs but the user has no way of knowing if
the actual HW job was ran and finished.

Fix:
Allow .run_job implementations to return ERR_PTR in the fence pointer
returned and then set this error for s_fence->finished fence so whoever
wait on this fence can inspect the signaled fence for an error.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Andrey Grodzovsky 2019-10-24 15:39:06 -04:00 • committed by Alex Deucher

parent 42ce4b666d

commit e91e5f080e

1 changed files with 16 additions and 3 deletions

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drivers/gpu/drm/scheduler/sched_main.c

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