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drm/nouveau: wait for moving fence after pinning v2

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commit 17b11f7179 upstream.

We actually need to wait for the moving fence after pinning
the BO to make sure that the pin is completed.

v2: grab the lock while waiting

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
References: https://lore.kernel.org/dri-devel/20210621151758.2347474-1-daniel.vetter@ffwll.ch/
CC: stable@kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210622114506.106349-1-christian.koenig@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian König
2021-06-30 08:48:56 -04:00
committed by Sasha Levin
parent 3267c5454e
commit 94fc53e655
1 changed files with 16 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/nouveau/nouveau_prime.c
+16 -1
View File
@@ -98,7 +98,22 @@ int nouveau_gem_prime_pin(struct drm_gem_object *obj)
if (ret)
return -EINVAL;
return 0;
ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
if (ret)
goto error;
if (nvbo->bo.moving)
ret = dma_fence_wait(nvbo->bo.moving, true);
ttm_bo_unreserve(&nvbo->bo);
if (ret)
goto error;
return ret;
error:
nouveau_bo_unpin(nvbo);
return ret;
}
void nouveau_gem_prime_unpin(struct drm_gem_object *obj)