drm/radeon: use new iterator in radeon_sync_resv

Simplifying the code a bit.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211005113742.1101-16-christian.koenig@amd.com

diff --git a/drivers/gpu/drm/radeon/radeon_sync.c b/drivers/gpu/drm/radeon/radeon_sync.c
index 9257b60..b991ba1 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_sync.c
+++ b/drivers/gpu/drm/radeon/radeon_sync.c
@@ -91,33 +91,17 @@ int radeon_sync_resv(struct radeon_device *rdev,
                     struct dma_resv *resv,
                     bool shared)
 {
-       struct dma_resv_list *flist;
-       struct dma_fence *f;
+       struct dma_resv_iter cursor;
        struct radeon_fence *fence;
-       unsigned i;
+       struct dma_fence *f;
        int r = 0;
 
-       /* always sync to the exclusive fence */
-       f = dma_resv_excl_fence(resv);
-       fence = f ? to_radeon_fence(f) : NULL;
-       if (fence && fence->rdev == rdev)
-               radeon_sync_fence(sync, fence);
-       else if (f)
-               r = dma_fence_wait(f, true);
-
-       flist = dma_resv_shared_list(resv);
-       if (shared || !flist || r)
-               return r;
-
-       for (i = 0; i < flist->shared_count; ++i) {
-               f = rcu_dereference_protected(flist->shared[i],
-                                             dma_resv_held(resv));
+       dma_resv_for_each_fence(&cursor, resv, shared, f) {
                fence = to_radeon_fence(f);
                if (fence && fence->rdev == rdev)
                        radeon_sync_fence(sync, fence);
                else
                        r = dma_fence_wait(f, true);
-
                if (r)
                        break;
        }