gpu/drm/drm_gem_dma_helper.c

3  * drm gem DMA helper functions
29  * The DRM GEM/DMA helpers are a means to provide buffer objects that are
43  * For GEM callback helpers in struct &drm_gem_object functions, see likewise
58  * __drm_gem_dma_create - Create a GEM DMA object without allocating memory
63  * This function creates and initializes a GEM DMA object of the given size,
121  * This function creates a DMA GEM object and allocates memory as backing store.
173  *     return a GEM handle to it
177  * @handle: return location for the GEM handle
179  * This function creates a DMA GEM object, allocating a chunk of memory as
180  * backing store. The GEM object is then added to the list of object associated
219  * drm_gem_dma_free - free resources associated with a DMA GEM object
220  * @dma_obj: DMA GEM object to free
222  * This function frees the backing memory of the DMA GEM object, cleans up the
223  * GEM object state and frees the memory used to store the object itself.
396  * @dma_obj: DMA GEM object
412  *     pages for a DMA GEM object
413  * @dma_obj: DMA GEM object
445  * drm_gem_dma_prime_import_sg_table - produce a DMA GEM object from another
458  * A pointer to a newly created GEM object or an ERR_PTR-encoded negative
472 	/* Create a DMA GEM buffer. */  in drm_gem_dma_prime_import_sg_table()
488  * drm_gem_dma_vmap - map a DMA GEM object into the kernel's virtual
490  * @dma_obj: DMA GEM object
491  * @map: Returns the kernel virtual address of the DMA GEM object's backing
511  * drm_gem_dma_mmap - memory-map an exported DMA GEM object
512  * @dma_obj: DMA GEM object
516  * In addition to the usual GEM VMA setup it immediately faults in the entire
562  * virtual address. This ensures that a DMA GEM object always has its virtual
570  * A pointer to a newly created GEM object or an ERR_PTR-encoded negative