Signed-off-by: Lucas Stach dev@lynxeye.de --- drivers/gpu/drm/nouveau/nouveau_bo.c | 4 ++++ drivers/gpu/drm/nouveau/nouveau_gem.c | 5 +++++ 2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index af20fba..f4a2eb9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -411,6 +411,10 @@ nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible, { int ret;
+ if (nvbo->bo.ttm && nvbo->bo.ttm->caching_state == tt_cached) + ttm_dma_tt_cache_sync_for_device((struct ttm_dma_tt *)nvbo->bo.ttm, + &nouveau_bdev(nvbo->bo.ttm->bdev)->dev->pdev->dev); + ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, interruptible, no_wait_gpu); if (ret) diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 830cb7b..f632b92 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -901,6 +901,11 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait); spin_unlock(&nvbo->bo.bdev->fence_lock); drm_gem_object_unreference_unlocked(gem); + + if (!ret && nvbo->bo.ttm && nvbo->bo.ttm->caching_state == tt_cached) + ttm_dma_tt_cache_sync_for_cpu((struct ttm_dma_tt *)nvbo->bo.ttm, + &dev->pdev->dev); + return ret; }