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authorChristian König <christian.koenig@amd.com>2021-11-03 13:22:42 +0100
committerChristian König <christian.koenig@amd.com>2022-04-03 18:50:49 +0200
commit644704740b8282c9ee9483a38666ee4a4561c37c (patch)
treee52a528e97e849db42f01345bdcdcb67bd50b1b5 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
parentdrm/radeon: stop using dma_resv_excl_fence (diff)
downloadwireguard-linux-644704740b8282c9ee9483a38666ee4a4561c37c.tar.xz
wireguard-linux-644704740b8282c9ee9483a38666ee4a4561c37c.zip
drm/amdgpu: use dma_resv_for_each_fence for CS workaround v2
Get the write fence using dma_resv_for_each_fence instead of accessing it manually. v2: add TODO comment Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: amd-gfx@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20220321135856.1331-9-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 025748e9c772..ee59b6928b11 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1267,18 +1267,23 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
amdgpu_bo_list_for_each_entry(e, p->bo_list) {
struct dma_resv *resv = e->tv.bo->base.resv;
struct dma_fence_chain *chain = e->chain;
+ struct dma_resv_iter cursor;
+ struct dma_fence *fence;
if (!chain)
continue;
/*
- * Work around dma_resv shortcommings by wrapping up the
- * submission in a dma_fence_chain and add it as exclusive
+ * Temporary workaround dma_resv shortcommings by wrapping up
+ * the submission in a dma_fence_chain and add it as exclusive
* fence.
+ *
+ * TODO: Remove together with dma_resv rework.
*/
- dma_fence_chain_init(chain, dma_resv_excl_fence(resv),
- dma_fence_get(p->fence), 1);
-
+ dma_resv_for_each_fence(&cursor, resv, false, fence) {
+ break;
+ }
+ dma_fence_chain_init(chain, fence, dma_fence_get(p->fence), 1);
rcu_assign_pointer(resv->fence_excl, &chain->base);
e->chain = NULL;
}