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 | |
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(filp: dfile, handle); |
42 | |
43 | return obj ? drm_to_armada_gem(obj) : NULL; |
44 | } |
45 | #endif |
46 | |