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 */
11 struct 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
26 void armada_gem_free_object(struct drm_gem_object *);
27 int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
28 void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
29 struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
30 size_t);
31 int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
32 struct drm_mode_create_dumb *);
33 struct dma_buf *armada_gem_prime_export(struct drm_gem_object *obj, int flags);
34 struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
35 struct dma_buf *);
36 int armada_gem_map_import(struct armada_gem_object *);
37
armada_gem_object_lookup(struct drm_file * dfile,unsigned handle)38 static 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