You really need to hold the reservation here or all kinds of funny things can happen between grabbing the dependencies and inserting the new fences.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com Cc: "Christian König" christian.koenig@amd.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Luben Tuikov luben.tuikov@amd.com Cc: Andrey Grodzovsky andrey.grodzovsky@amd.com Cc: Alex Deucher alexander.deucher@amd.com Cc: Jack Zhang Jack.Zhang1@amd.com --- drivers/gpu/drm/scheduler/sched_main.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index fd52db906b90..6fa6ccd30d2a 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -714,6 +714,8 @@ int drm_sched_job_await_implicit(struct drm_sched_job *job, struct dma_fence **fences; unsigned int i, fence_count;
+ dma_resv_assert_held(obj->resv); + if (!write) { struct dma_fence *fence = dma_resv_get_excl_unlocked(obj->resv);