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drm/msm: always wait for the exclusive fence

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Drivers also need to to sync to the exclusive fence when
a shared one is present.

Completely untested since the driver won't even compile on !ARM.

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210702111642.17259-5-christian.koenig@amd.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Christian König
2021-07-02 13:16:42 +02:00
committed by Christian König
parent ea9a897b8a
commit 60f800b2bd
1 changed files with 7 additions and 9 deletions
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16
drivers/gpu/drm/msm/msm_gem.c
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@@ -817,17 +817,15 @@ int msm_gem_sync_object(struct drm_gem_object *obj,
struct dma_fence *fence;
int i, ret;
fobj = dma_resv_shared_list(obj->resv);
if (!fobj || (fobj->shared_count == 0)) {
fence = dma_resv_excl_fence(obj->resv);
/* don't need to wait on our own fences, since ring is fifo */
if (fence && (fence->context != fctx->context)) {
ret = dma_fence_wait(fence, true);
if (ret)
return ret;
}
fence = dma_resv_excl_fence(obj->resv);
/* don't need to wait on our own fences, since ring is fifo */
if (fence && (fence->context != fctx->context)) {
ret = dma_fence_wait(fence, true);
if (ret)
return ret;
}
fobj = dma_resv_shared_list(obj->resv);
if (!exclusive || !fobj)
return 0;