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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#include <drm/drm_legacy.h>
33
34struct agp_memory;
35struct drm_device;
36struct drm_file;
37
38/*
39 * Generic DRM Contexts
40 */
41
42#define DRM_KERNEL_CONTEXT 0
43#define DRM_RESERVED_CONTEXTS 1
44
45void drm_legacy_ctxbitmap_init(struct drm_device *dev);
46void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
47void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
48void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
49
50int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
51int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
52int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
53int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
54int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
55int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
56
57int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
58int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
59
60/*
61 * Generic Buffer Management
62 */
63
64#define DRM_MAP_HASH_OFFSET 0x10000000
65
66int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
67int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
68int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
69int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
70int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
71int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
72int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
73int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
74
75void drm_legacy_vma_flush(struct drm_device *d);
76
77/*
78 * AGP Support
79 */
80
81struct drm_agp_mem {
82 unsigned long handle;
83 struct agp_memory *memory;
84 unsigned long bound;
85 int pages;
86 struct list_head head;
87};
88
89/*
90 * Generic Userspace Locking-API
91 */
92
93int drm_legacy_i_have_hw_lock(struct drm_device *d, struct drm_file *f);
94int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
95int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
96int drm_legacy_lock_free(struct drm_lock_data *lock, unsigned int ctx);
97
98/* DMA support */
99int drm_legacy_dma_setup(struct drm_device *dev);
100void drm_legacy_dma_takedown(struct drm_device *dev);
101void drm_legacy_free_buffer(struct drm_device *dev,
102 struct drm_buf * buf);
103void drm_legacy_reclaim_buffers(struct drm_device *dev,
104 struct drm_file *filp);
105
106/* Scatter Gather Support */
107void drm_legacy_sg_cleanup(struct drm_device *dev);
108int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
109 struct drm_file *file_priv);
110int drm_legacy_sg_free(struct drm_device *dev, void *data,
111 struct drm_file *file_priv);
112
113#endif /* __DRM_LEGACY_H__ */
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
37struct agp_memory;
38struct drm_buf_desc;
39struct drm_device;
40struct drm_file;
41struct drm_hash_item;
42struct drm_open_hash;
43
44/*
45 * Hash-table Support
46 */
47
48#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
49
50/* drm_hashtab.c */
51#if IS_ENABLED(CONFIG_DRM_LEGACY)
52int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
53int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
54int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
55 unsigned long seed, int bits, int shift,
56 unsigned long add);
57int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item);
58
59void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key);
60int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key);
61int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item);
62void drm_ht_remove(struct drm_open_hash *ht);
63#endif
64
65/*
66 * RCU-safe interface
67 *
68 * The user of this API needs to make sure that two or more instances of the
69 * hash table manipulation functions are never run simultaneously.
70 * The lookup function drm_ht_find_item_rcu may, however, run simultaneously
71 * with any of the manipulation functions as long as it's called from within
72 * an RCU read-locked section.
73 */
74#define drm_ht_insert_item_rcu drm_ht_insert_item
75#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please
76#define drm_ht_remove_key_rcu drm_ht_remove_key
77#define drm_ht_remove_item_rcu drm_ht_remove_item
78#define drm_ht_find_item_rcu drm_ht_find_item
79
80/*
81 * Generic DRM Contexts
82 */
83
84#define DRM_KERNEL_CONTEXT 0
85#define DRM_RESERVED_CONTEXTS 1
86
87#if IS_ENABLED(CONFIG_DRM_LEGACY)
88void drm_legacy_ctxbitmap_init(struct drm_device *dev);
89void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
90void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
91#else
92static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {}
93static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {}
94static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {}
95#endif
96
97void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
98
99#if IS_ENABLED(CONFIG_DRM_LEGACY)
100int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
101int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
102int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
103int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f);
104int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f);
105int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
106
107int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
108int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
109#endif
110
111/*
112 * Generic Buffer Management
113 */
114
115#define DRM_MAP_HASH_OFFSET 0x10000000
116
117#if IS_ENABLED(CONFIG_DRM_LEGACY)
118static inline int drm_legacy_create_map_hash(struct drm_device *dev)
119{
120 return drm_ht_create(&dev->map_hash, 12);
121}
122
123static inline void drm_legacy_remove_map_hash(struct drm_device *dev)
124{
125 drm_ht_remove(&dev->map_hash);
126}
127#else
128static inline int drm_legacy_create_map_hash(struct drm_device *dev)
129{
130 return 0;
131}
132
133static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {}
134#endif
135
136
137#if IS_ENABLED(CONFIG_DRM_LEGACY)
138int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
139 struct drm_file *file_priv);
140int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
141int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
142
143int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
144int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
145int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
146int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
147int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
148int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
149#endif
150
151int __drm_legacy_infobufs(struct drm_device *, void *, int *,
152 int (*)(void *, int, struct drm_buf_entry *));
153int __drm_legacy_mapbufs(struct drm_device *, void *, int *,
154 void __user **,
155 int (*)(void *, int, unsigned long, struct drm_buf *),
156 struct drm_file *);
157
158#if IS_ENABLED(CONFIG_DRM_LEGACY)
159void drm_legacy_master_rmmaps(struct drm_device *dev,
160 struct drm_master *master);
161void drm_legacy_rmmaps(struct drm_device *dev);
162#else
163static inline void drm_legacy_master_rmmaps(struct drm_device *dev,
164 struct drm_master *master) {}
165static inline void drm_legacy_rmmaps(struct drm_device *dev) {}
166#endif
167
168#if IS_ENABLED(CONFIG_DRM_LEGACY)
169void drm_legacy_vma_flush(struct drm_device *d);
170#else
171static inline void drm_legacy_vma_flush(struct drm_device *d)
172{
173 /* do nothing */
174}
175#endif
176
177/*
178 * AGP Support
179 */
180
181struct drm_agp_mem {
182 unsigned long handle;
183 struct agp_memory *memory;
184 unsigned long bound;
185 int pages;
186 struct list_head head;
187};
188
189/* drm_agpsupport.c */
190#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP)
191void drm_legacy_agp_clear(struct drm_device *dev);
192
193int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data,
194 struct drm_file *file_priv);
195int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data,
196 struct drm_file *file_priv);
197int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data,
198 struct drm_file *file_priv);
199int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data,
200 struct drm_file *file_priv);
201int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data,
202 struct drm_file *file_priv);
203int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data,
204 struct drm_file *file_priv);
205int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data,
206 struct drm_file *file_priv);
207int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data,
208 struct drm_file *file_priv);
209#else
210static inline void drm_legacy_agp_clear(struct drm_device *dev) {}
211#endif
212
213/* drm_lock.c */
214#if IS_ENABLED(CONFIG_DRM_LEGACY)
215int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
216int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
217void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
218#else
219static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {}
220#endif
221
222/* DMA support */
223#if IS_ENABLED(CONFIG_DRM_LEGACY)
224int drm_legacy_dma_setup(struct drm_device *dev);
225void drm_legacy_dma_takedown(struct drm_device *dev);
226#else
227static inline int drm_legacy_dma_setup(struct drm_device *dev)
228{
229 return 0;
230}
231#endif
232
233void drm_legacy_free_buffer(struct drm_device *dev,
234 struct drm_buf * buf);
235#if IS_ENABLED(CONFIG_DRM_LEGACY)
236void drm_legacy_reclaim_buffers(struct drm_device *dev,
237 struct drm_file *filp);
238#else
239static inline void drm_legacy_reclaim_buffers(struct drm_device *dev,
240 struct drm_file *filp) {}
241#endif
242
243/* Scatter Gather Support */
244#if IS_ENABLED(CONFIG_DRM_LEGACY)
245void drm_legacy_sg_cleanup(struct drm_device *dev);
246int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
247 struct drm_file *file_priv);
248int drm_legacy_sg_free(struct drm_device *dev, void *data,
249 struct drm_file *file_priv);
250#endif
251
252#if IS_ENABLED(CONFIG_DRM_LEGACY)
253void drm_legacy_init_members(struct drm_device *dev);
254void drm_legacy_destroy_members(struct drm_device *dev);
255void drm_legacy_dev_reinit(struct drm_device *dev);
256int drm_legacy_setup(struct drm_device * dev);
257#else
258static inline void drm_legacy_init_members(struct drm_device *dev) {}
259static inline void drm_legacy_destroy_members(struct drm_device *dev) {}
260static inline void drm_legacy_dev_reinit(struct drm_device *dev) {}
261static inline int drm_legacy_setup(struct drm_device * dev) { return 0; }
262#endif
263
264#if IS_ENABLED(CONFIG_DRM_LEGACY)
265void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master);
266#else
267static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {}
268#endif
269
270#if IS_ENABLED(CONFIG_DRM_LEGACY)
271void drm_master_legacy_init(struct drm_master *master);
272#else
273static inline void drm_master_legacy_init(struct drm_master *master) {}
274#endif
275
276/* drm_pci.c */
277#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_PCI)
278int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, struct drm_file *file_priv);
279void drm_legacy_pci_agp_destroy(struct drm_device *dev);
280#else
281static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
282 struct drm_file *file_priv)
283{
284 return -EINVAL;
285}
286
287static inline void drm_legacy_pci_agp_destroy(struct drm_device *dev) {}
288#endif
289
290#endif /* __DRM_LEGACY_H__ */