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.
v2: Fix commit summary (Christian)
Acked-by: Melissa Wen <mwen@xxxxxxxxxx>
Reviewed-by: "Christian König" <christian.koenig@xxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Luben Tuikov <luben.tuikov@xxxxxxx>
Cc: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
---
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 157d4cf360f8..ba121f87cd2e 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -708,6 +708,8 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
struct dma_fence *fence;
int ret;
+ dma_resv_assert_held(obj->resv);
+
dma_resv_for_each_fence(&cursor, obj->resv, write, fence) {
/* Make sure to grab an additional ref on the added fence */
dma_fence_get(fence);
--
2.34.1
