1 /* 1 /*
2 * Copyright © 2012 Red Hat 2 * Copyright © 2012 Red Hat
3 * Copyright 1999 Precision Insight, Inc., Ced 3 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
4 * Copyright 2000 VA Linux Systems, Inc., Sunn 4 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
5 * Copyright (c) 2009-2010, Code Aurora Forum. 5 * Copyright (c) 2009-2010, Code Aurora Forum.
6 * 6 *
7 * Permission is hereby granted, free of charg 7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated docume 8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction 9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, pub 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to 11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to 12 * Software is furnished to do so, subject to the following conditions:
13 * 13 *
14 * The above copyright notice and this permiss 14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies 15 * paragraph) shall be included in all copies or substantial portions of the
16 * Software. 16 * Software.
17 * 17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT W 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE W 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINF 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFT 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * IN THE SOFTWARE. 24 * IN THE SOFTWARE.
25 * 25 *
26 * Authors: 26 * Authors:
27 * Dave Airlie <airlied@redhat.com> 27 * Dave Airlie <airlied@redhat.com>
28 * Rob Clark <rob.clark@linaro.org> 28 * Rob Clark <rob.clark@linaro.org>
29 * 29 *
30 */ 30 */
31 31
32 #ifndef __DRM_PRIME_H__ 32 #ifndef __DRM_PRIME_H__
33 #define __DRM_PRIME_H__ 33 #define __DRM_PRIME_H__
34 34
35 #include <linux/mutex.h> 35 #include <linux/mutex.h>
36 #include <linux/rbtree.h> 36 #include <linux/rbtree.h>
37 #include <linux/scatterlist.h> 37 #include <linux/scatterlist.h>
38 38
39 /** 39 /**
40 * struct drm_prime_file_private - per-file tr 40 * struct drm_prime_file_private - per-file tracking for PRIME
41 * 41 *
42 * This just contains the internal &struct dma 42 * This just contains the internal &struct dma_buf and handle caches for each
43 * &struct drm_file used by the PRIME core cod 43 * &struct drm_file used by the PRIME core code.
44 */ 44 */
45 struct drm_prime_file_private { 45 struct drm_prime_file_private {
46 /* private: */ 46 /* private: */
47 struct mutex lock; 47 struct mutex lock;
48 struct rb_root dmabufs; 48 struct rb_root dmabufs;
49 struct rb_root handles; 49 struct rb_root handles;
50 }; 50 };
51 51
52 struct device; 52 struct device;
53 53
54 struct dma_buf_export_info; 54 struct dma_buf_export_info;
55 struct dma_buf; 55 struct dma_buf;
56 struct dma_buf_attachment; 56 struct dma_buf_attachment;
57 struct iosys_map; 57 struct iosys_map;
58 58
59 enum dma_data_direction; 59 enum dma_data_direction;
60 60
61 struct drm_device; 61 struct drm_device;
62 struct drm_gem_object; 62 struct drm_gem_object;
63 struct drm_file; 63 struct drm_file;
64 64
65 /* core prime functions */ 65 /* core prime functions */
66 struct dma_buf *drm_gem_dmabuf_export(struct d 66 struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
67 struct d 67 struct dma_buf_export_info *exp_info);
68 void drm_gem_dmabuf_release(struct dma_buf *dm 68 void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
69 69
70 int drm_gem_prime_fd_to_handle(struct drm_devi 70 int drm_gem_prime_fd_to_handle(struct drm_device *dev,
71 struct drm_file 71 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
72 struct dma_buf *drm_gem_prime_handle_to_dmabuf <<
73 struct drm_file <<
74 uint32_t flags) <<
75 int drm_gem_prime_handle_to_fd(struct drm_devi 72 int drm_gem_prime_handle_to_fd(struct drm_device *dev,
76 struct drm_file 73 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
77 int *prime_fd); 74 int *prime_fd);
78 75
79 /* helper functions for exporting */ 76 /* helper functions for exporting */
80 int drm_gem_map_attach(struct dma_buf *dma_buf 77 int drm_gem_map_attach(struct dma_buf *dma_buf,
81 struct dma_buf_attachme 78 struct dma_buf_attachment *attach);
82 void drm_gem_map_detach(struct dma_buf *dma_bu 79 void drm_gem_map_detach(struct dma_buf *dma_buf,
83 struct dma_buf_attachm 80 struct dma_buf_attachment *attach);
84 struct sg_table *drm_gem_map_dma_buf(struct dm 81 struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
85 enum dma_ 82 enum dma_data_direction dir);
86 void drm_gem_unmap_dma_buf(struct dma_buf_atta 83 void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
87 struct sg_table *sg 84 struct sg_table *sgt,
88 enum dma_data_direc 85 enum dma_data_direction dir);
89 int drm_gem_dmabuf_vmap(struct dma_buf *dma_bu 86 int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct iosys_map *map);
90 void drm_gem_dmabuf_vunmap(struct dma_buf *dma 87 void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct iosys_map *map);
91 88
92 int drm_gem_prime_mmap(struct drm_gem_object * 89 int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
93 int drm_gem_dmabuf_mmap(struct dma_buf *dma_bu 90 int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);
94 91
95 struct sg_table *drm_prime_pages_to_sg(struct 92 struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev,
96 struct 93 struct page **pages, unsigned int nr_pages);
97 struct dma_buf *drm_gem_prime_export(struct dr 94 struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj,
98 int flags 95 int flags);
99 96
100 unsigned long drm_prime_get_contiguous_size(st 97 unsigned long drm_prime_get_contiguous_size(struct sg_table *sgt);
101 98
102 /* helper functions for importing */ 99 /* helper functions for importing */
103 struct drm_gem_object *drm_gem_prime_import_de 100 struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
104 101 struct dma_buf *dma_buf,
105 102 struct device *attach_dev);
106 struct drm_gem_object *drm_gem_prime_import(st 103 struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
107 st 104 struct dma_buf *dma_buf);
108 105
109 void drm_prime_gem_destroy(struct drm_gem_obje 106 void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
110 107
111 int drm_prime_sg_to_page_array(struct sg_table 108 int drm_prime_sg_to_page_array(struct sg_table *sgt, struct page **pages,
112 int max_pages); 109 int max_pages);
113 int drm_prime_sg_to_dma_addr_array(struct sg_t 110 int drm_prime_sg_to_dma_addr_array(struct sg_table *sgt, dma_addr_t *addrs,
114 int max_pag 111 int max_pages);
115 112
116 #endif /* __DRM_PRIME_H__ */ 113 #endif /* __DRM_PRIME_H__ */
117 114
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