1/*
2 * Copyright (C) 2012 Russell King
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef ARMADA_GEM_H
9#define ARMADA_GEM_H
10
11#include <drm/drm_gem.h>
12
13/* GEM */
14struct armada_gem_object {
15	struct drm_gem_object	obj;
16	void			*addr;
17	phys_addr_t		phys_addr;
18	resource_size_t		dev_addr;
19	struct drm_mm_node	*linear;	/* for linear backed */
20	struct page		*page;		/* for page backed */
21	struct sg_table		*sgt;		/* for imported */
22	void			(*update)(void *);
23	void			*update_data;
24};
25
26extern const struct vm_operations_struct armada_gem_vm_ops;
27
28#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
29
30void armada_gem_free_object(struct drm_gem_object *);
31int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
32void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
33struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
34	size_t);
35int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
36	struct drm_mode_create_dumb *);
37int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *,
38	uint32_t, uint64_t *);
39int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *,
40	uint32_t);
41struct dma_buf *armada_gem_prime_export(struct drm_device *dev,
42	struct drm_gem_object *obj, int flags);
43struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
44	struct dma_buf *);
45int armada_gem_map_import(struct armada_gem_object *);
46
47static inline struct armada_gem_object *armada_gem_object_lookup(
48	struct drm_device *dev, struct drm_file *dfile, unsigned handle)
49{
50	struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle);
51
52	return obj ? drm_to_armada_gem(obj) : NULL;
53}
54#endif
55