Re: [PATCH v4 08/21] drm/tegra: Prepare to dynamic dma-buf locking specification

[Christian König via Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Am 31.08.22 um 17:37 schrieb Dmitry Osipenko:
> Prepare Tegra DRM driver to the common dynamic dma-buf locking convention
> by starting to use the unlocked versions of dma-buf API functions.
>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx>

> ---
>   drivers/gpu/drm/tegra/gem.c | 17 +++++++++--------
>   1 file changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
> index 81991090adcc..b09b8ab40ae4 100644
> --- a/drivers/gpu/drm/tegra/gem.c
> +++ b/drivers/gpu/drm/tegra/gem.c
> @@ -84,7 +84,7 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_
>   			goto free;
>   		}
>   
> -		map->sgt = dma_buf_map_attachment(map->attach, direction);
> +		map->sgt = dma_buf_map_attachment_unlocked(map->attach, direction);
>   		if (IS_ERR(map->sgt)) {
>   			dma_buf_detach(buf, map->attach);
>   			err = PTR_ERR(map->sgt);
> @@ -160,7 +160,8 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_
>   static void tegra_bo_unpin(struct host1x_bo_mapping *map)
>   {
>   	if (map->attach) {
> -		dma_buf_unmap_attachment(map->attach, map->sgt, map->direction);
> +		dma_buf_unmap_attachment_unlocked(map->attach, map->sgt,
> +						  map->direction);
>   		dma_buf_detach(map->attach->dmabuf, map->attach);
>   	} else {
>   		dma_unmap_sgtable(map->dev, map->sgt, map->direction, 0);
> @@ -181,7 +182,7 @@ static void *tegra_bo_mmap(struct host1x_bo *bo)
>   	if (obj->vaddr) {
>   		return obj->vaddr;
>   	} else if (obj->gem.import_attach) {
> -		ret = dma_buf_vmap(obj->gem.import_attach->dmabuf, &map);
> +		ret = dma_buf_vmap_unlocked(obj->gem.import_attach->dmabuf, &map);
>   		return ret ? NULL : map.vaddr;
>   	} else {
>   		return vmap(obj->pages, obj->num_pages, VM_MAP,
> @@ -197,7 +198,7 @@ static void tegra_bo_munmap(struct host1x_bo *bo, void *addr)
>   	if (obj->vaddr)
>   		return;
>   	else if (obj->gem.import_attach)
> -		dma_buf_vunmap(obj->gem.import_attach->dmabuf, &map);
> +		dma_buf_vunmap_unlocked(obj->gem.import_attach->dmabuf, &map);
>   	else
>   		vunmap(addr);
>   }
> @@ -461,7 +462,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
>   
>   	get_dma_buf(buf);
>   
> -	bo->sgt = dma_buf_map_attachment(attach, DMA_TO_DEVICE);
> +	bo->sgt = dma_buf_map_attachment_unlocked(attach, DMA_TO_DEVICE);
>   	if (IS_ERR(bo->sgt)) {
>   		err = PTR_ERR(bo->sgt);
>   		goto detach;
> @@ -479,7 +480,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
>   
>   detach:
>   	if (!IS_ERR_OR_NULL(bo->sgt))
> -		dma_buf_unmap_attachment(attach, bo->sgt, DMA_TO_DEVICE);
> +		dma_buf_unmap_attachment_unlocked(attach, bo->sgt, DMA_TO_DEVICE);
>   
>   	dma_buf_detach(buf, attach);
>   	dma_buf_put(buf);
> @@ -508,8 +509,8 @@ void tegra_bo_free_object(struct drm_gem_object *gem)
>   		tegra_bo_iommu_unmap(tegra, bo);
>   
>   	if (gem->import_attach) {
> -		dma_buf_unmap_attachment(gem->import_attach, bo->sgt,
> -					 DMA_TO_DEVICE);
> +		dma_buf_unmap_attachment_unlocked(gem->import_attach, bo->sgt,
> +						  DMA_TO_DEVICE);
>   		drm_prime_gem_destroy(gem, NULL);
>   	} else {
>   		tegra_bo_free(gem->dev, bo);

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