diff options
Diffstat (limited to 'drivers/gpu/drm/drm_gem_ttm_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem_ttm_helper.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_gem_ttm_helper.c b/drivers/gpu/drm/drm_gem_ttm_helper.c index 0e4fb9ba43ad..de28720757af 100644 --- a/drivers/gpu/drm/drm_gem_ttm_helper.c +++ b/drivers/gpu/drm/drm_gem_ttm_helper.c @@ -50,6 +50,43 @@ void drm_gem_ttm_print_info(struct drm_printer *p, unsigned int indent, EXPORT_SYMBOL(drm_gem_ttm_print_info); /** + * drm_gem_ttm_vmap() - vmap &ttm_buffer_object + * @gem: GEM object. + * @map: [out] returns the dma-buf mapping. + * + * Maps a GEM object with ttm_bo_vmap(). This function can be used as + * &drm_gem_object_funcs.vmap callback. + * + * Returns: + * 0 on success, or a negative errno code otherwise. + */ +int drm_gem_ttm_vmap(struct drm_gem_object *gem, + struct dma_buf_map *map) +{ + struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem); + + return ttm_bo_vmap(bo, map); +} +EXPORT_SYMBOL(drm_gem_ttm_vmap); + +/** + * drm_gem_ttm_vunmap() - vunmap &ttm_buffer_object + * @gem: GEM object. + * @map: dma-buf mapping. + * + * Unmaps a GEM object with ttm_bo_vunmap(). This function can be used as + * &drm_gem_object_funcs.vmap callback. + */ +void drm_gem_ttm_vunmap(struct drm_gem_object *gem, + struct dma_buf_map *map) +{ + struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem); + + ttm_bo_vunmap(bo, map); +} +EXPORT_SYMBOL(drm_gem_ttm_vunmap); + +/** * drm_gem_ttm_mmap() - mmap &ttm_buffer_object * @gem: GEM object. * @vma: vm area. |