1 #ifndef __DRM_LEGACY_H__
2 #define __DRM_LEGACY_H__
3
4 /*
5 * Copyright (c) 2014 David Herrmann <dh.herrmann@gmail.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 /*
27 * This file contains legacy interfaces that modern drm drivers
28 * should no longer be using. They cannot be removed as legacy
29 * drivers use them, and removing them are API breaks.
30 */
31 #include <linux/list.h>
32
33 #include <drm/drm.h>
34 #include <drm/drm_device.h>
35 #include <drm/drm_legacy.h>
36
37 struct agp_memory;
38 struct drm_device;
39 struct drm_file;
40 struct drm_buf_desc;
41
42 /*
43 * Generic DRM Contexts
44 */
45
46 #define DRM_KERNEL_CONTEXT 0
47 #define DRM_RESERVED_CONTEXTS 1
48
49 #if IS_ENABLED(CONFIG_DRM_LEGACY)
50 void drm_legacy_ctxbitmap_init(struct drm_device *dev);
51 void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
52 void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
53 #else
drm_legacy_ctxbitmap_init(struct drm_device * dev)54 static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {}
drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)55 static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {}
drm_legacy_ctxbitmap_flush(struct drm_device * dev,struct drm_file * file)56 static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {}
57 #endif
58
59 void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
60
61 #if IS_ENABLED(CONFIG_DRM_LEGACY)
62 int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
63 int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
64 int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
65 int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
66 int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
67 int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
68
69 int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
70 int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
71 #endif
72
73 /*
74 * Generic Buffer Management
75 */
76
77 #define DRM_MAP_HASH_OFFSET 0x10000000
78
79 #if IS_ENABLED(CONFIG_DRM_LEGACY)
drm_legacy_create_map_hash(struct drm_device * dev)80 static inline int drm_legacy_create_map_hash(struct drm_device *dev)
81 {
82 return drm_ht_create(&dev->map_hash, 12);
83 }
84
drm_legacy_remove_map_hash(struct drm_device * dev)85 static inline void drm_legacy_remove_map_hash(struct drm_device *dev)
86 {
87 drm_ht_remove(&dev->map_hash);
88 }
89 #else
drm_legacy_create_map_hash(struct drm_device * dev)90 static inline int drm_legacy_create_map_hash(struct drm_device *dev)
91 {
92 return 0;
93 }
94
drm_legacy_remove_map_hash(struct drm_device * dev)95 static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {}
96 #endif
97
98
99 #if IS_ENABLED(CONFIG_DRM_LEGACY)
100 int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
101 struct drm_file *file_priv);
102 int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
103 int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
104
105 int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
106 int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
107 int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
108 int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
109 int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
110 int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
111 #endif
112
113 int __drm_legacy_infobufs(struct drm_device *, void *, int *,
114 int (*)(void *, int, struct drm_buf_entry *));
115 int __drm_legacy_mapbufs(struct drm_device *, void *, int *,
116 void __user **,
117 int (*)(void *, int, unsigned long, struct drm_buf *),
118 struct drm_file *);
119
120 #if IS_ENABLED(CONFIG_DRM_LEGACY)
121 void drm_legacy_master_rmmaps(struct drm_device *dev,
122 struct drm_master *master);
123 void drm_legacy_rmmaps(struct drm_device *dev);
124 #else
drm_legacy_master_rmmaps(struct drm_device * dev,struct drm_master * master)125 static inline void drm_legacy_master_rmmaps(struct drm_device *dev,
126 struct drm_master *master) {}
drm_legacy_rmmaps(struct drm_device * dev)127 static inline void drm_legacy_rmmaps(struct drm_device *dev) {}
128 #endif
129
130 #if IS_ENABLED(CONFIG_DRM_VM) && IS_ENABLED(CONFIG_DRM_LEGACY)
131 void drm_legacy_vma_flush(struct drm_device *d);
132 #else
drm_legacy_vma_flush(struct drm_device * d)133 static inline void drm_legacy_vma_flush(struct drm_device *d)
134 {
135 /* do nothing */
136 }
137 #endif
138
139 /*
140 * AGP Support
141 */
142
143 struct drm_agp_mem {
144 unsigned long handle;
145 struct agp_memory *memory;
146 unsigned long bound;
147 int pages;
148 struct list_head head;
149 };
150
151 /* drm_lock.c */
152 #if IS_ENABLED(CONFIG_DRM_LEGACY)
153 int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
154 int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
155 void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
156 #else
drm_legacy_lock_release(struct drm_device * dev,struct file * filp)157 static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {}
158 #endif
159
160 /* DMA support */
161 #if IS_ENABLED(CONFIG_DRM_LEGACY)
162 int drm_legacy_dma_setup(struct drm_device *dev);
163 void drm_legacy_dma_takedown(struct drm_device *dev);
164 #else
drm_legacy_dma_setup(struct drm_device * dev)165 static inline int drm_legacy_dma_setup(struct drm_device *dev)
166 {
167 return 0;
168 }
169 #endif
170
171 void drm_legacy_free_buffer(struct drm_device *dev,
172 struct drm_buf * buf);
173 #if IS_ENABLED(CONFIG_DRM_LEGACY)
174 void drm_legacy_reclaim_buffers(struct drm_device *dev,
175 struct drm_file *filp);
176 #else
drm_legacy_reclaim_buffers(struct drm_device * dev,struct drm_file * filp)177 static inline void drm_legacy_reclaim_buffers(struct drm_device *dev,
178 struct drm_file *filp) {}
179 #endif
180
181 /* Scatter Gather Support */
182 #if IS_ENABLED(CONFIG_DRM_LEGACY)
183 void drm_legacy_sg_cleanup(struct drm_device *dev);
184 int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
185 struct drm_file *file_priv);
186 int drm_legacy_sg_free(struct drm_device *dev, void *data,
187 struct drm_file *file_priv);
188 #endif
189
190 #if IS_ENABLED(CONFIG_DRM_LEGACY)
191 void drm_legacy_init_members(struct drm_device *dev);
192 void drm_legacy_destroy_members(struct drm_device *dev);
193 void drm_legacy_dev_reinit(struct drm_device *dev);
194 int drm_legacy_setup(struct drm_device * dev);
195 #else
drm_legacy_init_members(struct drm_device * dev)196 static inline void drm_legacy_init_members(struct drm_device *dev) {}
drm_legacy_destroy_members(struct drm_device * dev)197 static inline void drm_legacy_destroy_members(struct drm_device *dev) {}
drm_legacy_dev_reinit(struct drm_device * dev)198 static inline void drm_legacy_dev_reinit(struct drm_device *dev) {}
drm_legacy_setup(struct drm_device * dev)199 static inline int drm_legacy_setup(struct drm_device * dev) { return 0; }
200 #endif
201
202 #if IS_ENABLED(CONFIG_DRM_LEGACY)
203 void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master);
204 #else
drm_legacy_lock_master_cleanup(struct drm_device * dev,struct drm_master * master)205 static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {}
206 #endif
207
208 #if IS_ENABLED(CONFIG_DRM_LEGACY)
209 void drm_master_legacy_init(struct drm_master *master);
210 #else
drm_master_legacy_init(struct drm_master * master)211 static inline void drm_master_legacy_init(struct drm_master *master) {}
212 #endif
213
214 #endif /* __DRM_LEGACY_H__ */
215