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#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 bool mapped;
20 struct drm_mm_node *linear; /* for linear backed */
21 struct page *page; /* for page backed */
22 struct sg_table *sgt; /* for imported */
23 void (*update)(void *);
24 void *update_data;
25};
26
27extern const struct vm_operations_struct armada_gem_vm_ops;
28
29#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
30
31void armada_gem_free_object(struct drm_gem_object *);
32int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
33void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
34struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
35 size_t);
36int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
37 struct drm_mode_create_dumb *);
38struct dma_buf *armada_gem_prime_export(struct drm_device *dev,
39 struct drm_gem_object *obj, int flags);
40struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
41 struct dma_buf *);
42int armada_gem_map_import(struct armada_gem_object *);
43
44static inline struct armada_gem_object *armada_gem_object_lookup(
45 struct drm_file *dfile, unsigned handle)
46{
47 struct drm_gem_object *obj = drm_gem_object_lookup(dfile, handle);
48
49 return obj ? drm_to_armada_gem(obj) : NULL;
50}
51#endif