[PATCH 1/2] drm/amdgpu: amdgpu_ctx_add_fence can't fail

[Christian König]

No more waiting for a fence done here.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c  | 10 +---------
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c |  8 +++-----
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h |  6 +++---
 3 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index fd3902983195..80ad23061f1c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1217,15 +1217,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	job->owner = p->filp;
 	p->fence = dma_fence_get(&job->base.s_fence->finished);
 
-	r = amdgpu_ctx_add_fence(p->ctx, entity, p->fence, &seq);
-	if (r) {
-		dma_fence_put(p->fence);
-		dma_fence_put(&job->base.s_fence->finished);
-		amdgpu_job_free(job);
-		amdgpu_mn_unlock(p->mn);
-		return r;
-	}
-
+	amdgpu_ctx_add_fence(p->ctx, entity, p->fence, &seq);
 	amdgpu_cs_post_dependencies(p);
 
 	if ((job->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) &&
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 987b7f256463..f9b54236102d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -434,9 +434,9 @@ int amdgpu_ctx_put(struct amdgpu_ctx *ctx)
 	return 0;
 }
 
-int amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
-			 struct drm_sched_entity *entity,
-			 struct dma_fence *fence, uint64_t* handle)
+void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
+			  struct drm_sched_entity *entity,
+			  struct dma_fence *fence, uint64_t* handle)
 {
 	struct amdgpu_ctx_entity *centity = to_amdgpu_ctx_entity(entity);
 	uint64_t seq = centity->sequence;
@@ -458,8 +458,6 @@ int amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
 	dma_fence_put(other);
 	if (handle)
 		*handle = seq;
-
-	return 0;
 }
 
 struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h
index d67c1d285a4f..b3b012c0a7da 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h
@@ -65,9 +65,9 @@ int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
 
 int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance,
 			  u32 ring, struct drm_sched_entity **entity);
-int amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
-			 struct drm_sched_entity *entity,
-			 struct dma_fence *fence, uint64_t *seq);
+void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
+			  struct drm_sched_entity *entity,
+			  struct dma_fence *fence, uint64_t *seq);
 struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
 				       struct drm_sched_entity *entity,
 				       uint64_t seq);
-- 
2.17.1