1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Russell King
4 */
5#ifndef ARMADA_GEM_H
6#define ARMADA_GEM_H
7
8#include <drm/drm_gem.h>
9
10/* GEM */
11struct armada_gem_object {
12	struct drm_gem_object	obj;
13	void			*addr;
14	phys_addr_t		phys_addr;
15	resource_size_t		dev_addr;
16	bool			mapped;
17	struct drm_mm_node	*linear;	/* for linear backed */
18	struct page		*page;		/* for page backed */
19	struct sg_table		*sgt;		/* for imported */
20	void			(*update)(void *);
21	void			*update_data;
22};
23
24#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
25
26void armada_gem_free_object(struct drm_gem_object *);
27int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
28void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
29struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
30	size_t);
31int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
32	struct drm_mode_create_dumb *);
33struct dma_buf *armada_gem_prime_export(struct drm_gem_object *obj, int flags);
34struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
35	struct dma_buf *);
36int armada_gem_map_import(struct armada_gem_object *);
37
38static inline struct armada_gem_object *armada_gem_object_lookup(
39	struct drm_file *dfile, unsigned handle)
40{
41	struct drm_gem_object *obj = drm_gem_object_lookup(dfile, handle);
42
43	return obj ? drm_to_armada_gem(obj) : NULL;
44}
45#endif
46