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32#ifndef __DRM_PRIME_H__
33#define __DRM_PRIME_H__
34
35#include <linux/mutex.h>
36#include <linux/rbtree.h>
37#include <linux/scatterlist.h>
38
39
40
41
42
43
44
45struct drm_prime_file_private {
46
47 struct mutex lock;
48 struct rb_root dmabufs;
49 struct rb_root handles;
50};
51
52struct device;
53
54struct dma_buf_export_info;
55struct dma_buf;
56struct dma_buf_attachment;
57
58enum dma_data_direction;
59
60struct drm_device;
61struct drm_gem_object;
62struct drm_file;
63
64
65struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
66 struct dma_buf_export_info *exp_info);
67void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
68
69int drm_gem_prime_fd_to_handle(struct drm_device *dev,
70 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
71int drm_gem_prime_handle_to_fd(struct drm_device *dev,
72 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
73 int *prime_fd);
74
75
76int drm_gem_map_attach(struct dma_buf *dma_buf,
77 struct dma_buf_attachment *attach);
78void drm_gem_map_detach(struct dma_buf *dma_buf,
79 struct dma_buf_attachment *attach);
80struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
81 enum dma_data_direction dir);
82void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
83 struct sg_table *sgt,
84 enum dma_data_direction dir);
85void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf);
86void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
87
88int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
89int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);
90
91struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
92struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj,
93 int flags);
94
95
96struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
97 struct dma_buf *dma_buf,
98 struct device *attach_dev);
99struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
100 struct dma_buf *dma_buf);
101
102void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
103
104int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
105 dma_addr_t *addrs, int max_pages);
106
107
108#endif
109