tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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/* GEM */
12struct armada_gem_object {
13 struct drm_gem_object obj;
14 void *addr;
15 phys_addr_t phys_addr;
16 resource_size_t dev_addr;
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
24extern const struct vm_operations_struct armada_gem_vm_ops;
25
26#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
27
28void armada_gem_free_object(struct drm_gem_object *);
29int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
30void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
31struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
32 size_t);
33int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
34 struct drm_mode_create_dumb *);
35int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *,
36 uint32_t, uint64_t *);
37int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *,
38 uint32_t);
39struct dma_buf *armada_gem_prime_export(struct drm_device *dev,
40 struct drm_gem_object *obj, int flags);
41struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
42 struct dma_buf *);
43int armada_gem_map_import(struct armada_gem_object *);
44
45static inline struct armada_gem_object *armada_gem_object_lookup(
46 struct drm_device *dev, struct drm_file *dfile, unsigned handle)
47{
48 struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle);
49
50 return obj ? drm_to_armada_gem(obj) : NULL;
51}
52#endif