[PATCH 11/12] drm/radeon: add DMA-buf user fence support

[Christian König]

Just add the call before taking locks.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/radeon/radeon_cs.c      | 6 ++++++
 drivers/gpu/drm/radeon/radeon_display.c | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 059431689c2d..fb0e238535f3 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -189,6 +189,12 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
 				      priority);
 	}
 
+	for (i = 0; i < p->nrelocs; i++) {
+		r = dma_resv_sync_user_fence(p->relocs[i].tv.bo->base.resv);
+		if (r)
+			return r;
+	}
+
 	radeon_cs_buckets_get_list(&buckets, &p->validated);
 
 	if (p->cs_flags & RADEON_CS_USE_VM)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 652af7a134bd..75ebd2338809 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -519,6 +519,10 @@ static int radeon_crtc_page_flip_target(struct drm_crtc *crtc,
 	DRM_DEBUG_DRIVER("flip-ioctl() cur_rbo = %p, new_rbo = %p\n",
 			 work->old_rbo, new_rbo);
 
+	r = dma_resv_sync_user_fence(new_rbo->tbo.base.resv);
+	if (unlikely(r != 0))
+		goto cleanup;
+
 	r = radeon_bo_reserve(new_rbo, false);
 	if (unlikely(r != 0)) {
 		DRM_ERROR("failed to reserve new rbo buffer before flip\n");
-- 
2.25.1