drm/amdgpu: stop getting excl fence separately

Just grab all fences for the display flip in one go.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028132630.2330-2-christian.koenig@amd.com

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -457,7 +457,6 @@ struct amdgpu_flip_work {
 	uint64_t			base;
 	struct drm_pending_vblank_event *event;
 	struct amdgpu_bo		*old_abo;
-	struct dma_fence		*excl;
 	unsigned			shared_count;
 	struct dma_fence		**shared;
 	struct dma_fence_cb		cb;

drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

@@ -83,9 +83,6 @@ static void amdgpu_display_flip_work_func(struct work_struct *__work)
 	unsigned i;
 	int vpos, hpos;
 
-	if (amdgpu_display_flip_handle_fence(work, &work->excl))
-		return;
-
 	for (i = 0; i < work->shared_count; ++i)
 		if (amdgpu_display_flip_handle_fence(work, &work->shared[i]))
 			return;
@@ -203,7 +200,7 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
 		goto unpin;
 	}
 
-	r = dma_resv_get_fences(new_abo->tbo.base.resv, &work->excl,
+	r = dma_resv_get_fences(new_abo->tbo.base.resv, NULL,
 				&work->shared_count, &work->shared);
 	if (unlikely(r != 0)) {
 		DRM_ERROR("failed to get fences for buffer\n");
@@ -253,7 +250,6 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
 
 cleanup:
 	amdgpu_bo_unref(&work->old_abo);
-	dma_fence_put(work->excl);
 	for (i = 0; i < work->shared_count; ++i)
 		dma_fence_put(work->shared[i]);
 	kfree(work->shared);