Commit | Line | Data |
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1da177e4 | 1 | /* |
d7d2c48e DH |
2 | * Internal Header for the Direct Rendering Manager |
3 | * | |
1da177e4 LT |
4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
dcdb1674 | 6 | * Copyright (c) 2009-2010, Code Aurora Forum. |
1da177e4 LT |
7 | * All rights reserved. |
8 | * | |
d7d2c48e DH |
9 | * Author: Rickard E. (Rik) Faith <faith@valinux.com> |
10 | * Author: Gareth Hughes <gareth@valinux.com> | |
11 | * | |
1da177e4 LT |
12 | * Permission is hereby granted, free of charge, to any person obtaining a |
13 | * copy of this software and associated documentation files (the "Software"), | |
14 | * to deal in the Software without restriction, including without limitation | |
15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
16 | * and/or sell copies of the Software, and to permit persons to whom the | |
17 | * Software is furnished to do so, subject to the following conditions: | |
18 | * | |
19 | * The above copyright notice and this permission notice (including the next | |
20 | * paragraph) shall be included in all copies or substantial portions of the | |
21 | * Software. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
26 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
29 | * OTHER DEALINGS IN THE SOFTWARE. | |
30 | */ | |
31 | ||
32 | #ifndef _DRM_P_H_ | |
33 | #define _DRM_P_H_ | |
34 | ||
96993908 DH |
35 | #include <linux/agp_backend.h> |
36 | #include <linux/cdev.h> | |
37 | #include <linux/dma-mapping.h> | |
38 | #include <linux/file.h> | |
1da177e4 | 39 | #include <linux/fs.h> |
96993908 DH |
40 | #include <linux/highmem.h> |
41 | #include <linux/idr.h> | |
1da177e4 | 42 | #include <linux/init.h> |
96993908 | 43 | #include <linux/io.h> |
1da177e4 | 44 | #include <linux/jiffies.h> |
96993908 DH |
45 | #include <linux/kernel.h> |
46 | #include <linux/kref.h> | |
47 | #include <linux/miscdevice.h> | |
1da177e4 | 48 | #include <linux/mm.h> |
30e2fb18 | 49 | #include <linux/mutex.h> |
96993908 DH |
50 | #include <linux/pci.h> |
51 | #include <linux/platform_device.h> | |
52 | #include <linux/poll.h> | |
5d13d425 | 53 | #include <linux/ratelimit.h> |
077675c1 | 54 | #include <linux/rbtree.h> |
96993908 DH |
55 | #include <linux/sched.h> |
56 | #include <linux/slab.h> | |
1da177e4 | 57 | #include <linux/types.h> |
d6db6564 | 58 | #include <linux/vmalloc.h> |
96993908 | 59 | #include <linux/workqueue.h> |
f54d1867 | 60 | #include <linux/dma-fence.h> |
96993908 DH |
61 | |
62 | #include <asm/mman.h> | |
1da177e4 | 63 | #include <asm/pgalloc.h> |
96993908 DH |
64 | #include <asm/uaccess.h> |
65 | ||
d7d2c48e DH |
66 | #include <uapi/drm/drm.h> |
67 | #include <uapi/drm/drm_mode.h> | |
68 | ||
69 | #include <drm/drm_agpsupport.h> | |
70 | #include <drm/drm_crtc.h> | |
ae4df11a | 71 | #include <drm/drm_fourcc.h> |
d7d2c48e | 72 | #include <drm/drm_global.h> |
96993908 | 73 | #include <drm/drm_hashtab.h> |
d7d2c48e | 74 | #include <drm/drm_mem_util.h> |
96993908 DH |
75 | #include <drm/drm_mm.h> |
76 | #include <drm/drm_os_linux.h> | |
19218e48 | 77 | #include <drm/drm_sarea.h> |
0de23977 | 78 | #include <drm/drm_vma_manager.h> |
1da177e4 | 79 | |
de477254 PG |
80 | struct module; |
81 | ||
c153f45f EA |
82 | struct drm_file; |
83 | struct drm_device; | |
cc5ea594 | 84 | struct drm_agp_head; |
ba8286fa DV |
85 | struct drm_local_map; |
86 | struct drm_device_dma; | |
87 | struct drm_dma_handle; | |
d9fc9413 | 88 | struct drm_gem_object; |
3b96a0b1 | 89 | struct drm_master; |
34a67dd7 | 90 | struct drm_vblank_crtc; |
c153f45f | 91 | |
edb37a95 | 92 | struct device_node; |
ebc64e45 | 93 | struct videomode; |
3aac4502 | 94 | struct reservation_object; |
b5e9c1a2 | 95 | struct dma_buf_attachment; |
ebc64e45 | 96 | |
87fdff81 | 97 | /* |
346fea63 | 98 | * The following categories are defined: |
1414b76c LD |
99 | * |
100 | * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... | |
101 | * This is the category used by the DRM_DEBUG() macro. | |
102 | * | |
103 | * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... | |
104 | * This is the category used by the DRM_DEBUG_DRIVER() macro. | |
87fdff81 | 105 | * |
1414b76c LD |
106 | * KMS: used in the modesetting code. |
107 | * This is the category used by the DRM_DEBUG_KMS() macro. | |
87fdff81 | 108 | * |
1414b76c LD |
109 | * PRIME: used in the prime code. |
110 | * This is the category used by the DRM_DEBUG_PRIME() macro. | |
87fdff81 | 111 | * |
17a38d9c DV |
112 | * ATOMIC: used in the atomic code. |
113 | * This is the category used by the DRM_DEBUG_ATOMIC() macro. | |
114 | * | |
235fabe0 VS |
115 | * VBL: used for verbose debug message in the vblank code |
116 | * This is the category used by the DRM_DEBUG_VBL() macro. | |
117 | * | |
1414b76c LD |
118 | * Enabling verbose debug messages is done through the drm.debug parameter, |
119 | * each category being enabled by a bit. | |
120 | * | |
121 | * drm.debug=0x1 will enable CORE messages | |
122 | * drm.debug=0x2 will enable DRIVER messages | |
123 | * drm.debug=0x3 will enable CORE and DRIVER messages | |
124 | * ... | |
235fabe0 | 125 | * drm.debug=0x3f will enable all messages |
1414b76c LD |
126 | * |
127 | * An interesting feature is that it's possible to enable verbose logging at | |
128 | * run-time by echoing the debug value in its sysfs node: | |
129 | * # echo 0xf > /sys/module/drm/parameters/debug | |
87fdff81 | 130 | */ |
c4e68a58 | 131 | #define DRM_UT_NONE 0x00 |
1414b76c LD |
132 | #define DRM_UT_CORE 0x01 |
133 | #define DRM_UT_DRIVER 0x02 | |
134 | #define DRM_UT_KMS 0x04 | |
135 | #define DRM_UT_PRIME 0x08 | |
17a38d9c | 136 | #define DRM_UT_ATOMIC 0x10 |
235fabe0 | 137 | #define DRM_UT_VBL 0x20 |
fceffb32 | 138 | #define DRM_UT_STATE 0x40 |
4fefcb27 | 139 | |
c4e68a58 SP |
140 | extern __printf(6, 7) |
141 | void drm_dev_printk(const struct device *dev, const char *level, | |
142 | unsigned int category, const char *function_name, | |
143 | const char *prefix, const char *format, ...); | |
144 | ||
6bd488db | 145 | extern __printf(3, 4) |
c4e68a58 | 146 | void drm_printk(const char *level, unsigned int category, |
c4e68a58 | 147 | const char *format, ...); |
5ad3d883 | 148 | |
1da177e4 LT |
149 | /***********************************************************************/ |
150 | /** \name DRM template customization defaults */ | |
151 | /*@{*/ | |
152 | ||
153 | /* driver capabilities and requirements mask */ | |
0e975980 | 154 | #define DRIVER_USE_AGP 0x1 |
3cbf6a5d | 155 | #define DRIVER_LEGACY 0x2 |
0e975980 PA |
156 | #define DRIVER_PCI_DMA 0x8 |
157 | #define DRIVER_SG 0x10 | |
158 | #define DRIVER_HAVE_DMA 0x20 | |
159 | #define DRIVER_HAVE_IRQ 0x40 | |
160 | #define DRIVER_IRQ_SHARED 0x80 | |
161 | #define DRIVER_GEM 0x1000 | |
162 | #define DRIVER_MODESET 0x2000 | |
163 | #define DRIVER_PRIME 0x4000 | |
164 | #define DRIVER_RENDER 0x8000 | |
165 | #define DRIVER_ATOMIC 0x10000 | |
166 | #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 | |
8410ea3b | 167 | |
1da177e4 | 168 | /***********************************************************************/ |
1da177e4 LT |
169 | /** \name Macros to make printk easier */ |
170 | /*@{*/ | |
171 | ||
30b0da8d DG |
172 | #define _DRM_PRINTK(once, level, fmt, ...) \ |
173 | do { \ | |
174 | printk##once(KERN_##level "[" DRM_NAME "] " fmt, \ | |
175 | ##__VA_ARGS__); \ | |
176 | } while (0) | |
177 | ||
178 | #define DRM_INFO(fmt, ...) \ | |
179 | _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__) | |
180 | #define DRM_NOTE(fmt, ...) \ | |
181 | _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__) | |
182 | #define DRM_WARN(fmt, ...) \ | |
183 | _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) | |
184 | ||
185 | #define DRM_INFO_ONCE(fmt, ...) \ | |
186 | _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__) | |
187 | #define DRM_NOTE_ONCE(fmt, ...) \ | |
188 | _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__) | |
189 | #define DRM_WARN_ONCE(fmt, ...) \ | |
190 | _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) | |
191 | ||
1da177e4 LT |
192 | /** |
193 | * Error output. | |
194 | * | |
195 | * \param fmt printf() like format string. | |
196 | * \param arg arguments | |
197 | */ | |
c4e68a58 SP |
198 | #define DRM_DEV_ERROR(dev, fmt, ...) \ |
199 | drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\ | |
200 | fmt, ##__VA_ARGS__) | |
201 | #define DRM_ERROR(fmt, ...) \ | |
6bd488db | 202 | drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__) |
1da177e4 | 203 | |
5d13d425 RC |
204 | /** |
205 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. | |
206 | * | |
207 | * \param fmt printf() like format string. | |
208 | * \param arg arguments | |
209 | */ | |
c4e68a58 | 210 | #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \ |
5d13d425 RC |
211 | ({ \ |
212 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
213 | DEFAULT_RATELIMIT_INTERVAL, \ | |
214 | DEFAULT_RATELIMIT_BURST); \ | |
215 | \ | |
216 | if (__ratelimit(&_rs)) \ | |
c4e68a58 | 217 | DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \ |
5d13d425 | 218 | }) |
c4e68a58 SP |
219 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ |
220 | DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__) | |
5d13d425 | 221 | |
c4e68a58 SP |
222 | #define DRM_DEV_INFO(dev, fmt, ...) \ |
223 | drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \ | |
224 | ##__VA_ARGS__) | |
1da177e4 | 225 | |
c4e68a58 SP |
226 | #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \ |
227 | ({ \ | |
228 | static bool __print_once __read_mostly; \ | |
229 | if (!__print_once) { \ | |
230 | __print_once = true; \ | |
231 | DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \ | |
232 | } \ | |
233 | }) | |
48b8f631 | 234 | |
1da177e4 LT |
235 | /** |
236 | * Debug output. | |
b5e89ed5 | 237 | * |
1da177e4 LT |
238 | * \param fmt printf() like format string. |
239 | * \param arg arguments | |
240 | */ | |
c4e68a58 SP |
241 | #define DRM_DEV_DEBUG(dev, fmt, args...) \ |
242 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \ | |
243 | ##args) | |
6bd488db JP |
244 | #define DRM_DEBUG(fmt, ...) \ |
245 | drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__) | |
4fefcb27 | 246 | |
c4e68a58 SP |
247 | #define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \ |
248 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \ | |
249 | fmt, ##args) | |
6bd488db JP |
250 | #define DRM_DEBUG_DRIVER(fmt, ...) \ |
251 | drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) | |
c4e68a58 SP |
252 | |
253 | #define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \ | |
254 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \ | |
255 | ##args) | |
6bd488db JP |
256 | #define DRM_DEBUG_KMS(fmt, ...) \ |
257 | drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__) | |
c4e68a58 SP |
258 | |
259 | #define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \ | |
260 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \ | |
261 | fmt, ##args) | |
6bd488db JP |
262 | #define DRM_DEBUG_PRIME(fmt, ...) \ |
263 | drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__) | |
c4e68a58 SP |
264 | |
265 | #define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \ | |
266 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \ | |
267 | fmt, ##args) | |
6bd488db JP |
268 | #define DRM_DEBUG_ATOMIC(fmt, ...) \ |
269 | drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) | |
c4e68a58 SP |
270 | |
271 | #define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \ | |
272 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \ | |
273 | ##args) | |
6bd488db JP |
274 | #define DRM_DEBUG_VBL(fmt, ...) \ |
275 | drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__) | |
1da177e4 | 276 | |
c4e68a58 SP |
277 | #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \ |
278 | ({ \ | |
279 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
280 | DEFAULT_RATELIMIT_INTERVAL, \ | |
281 | DEFAULT_RATELIMIT_BURST); \ | |
282 | if (__ratelimit(&_rs)) \ | |
283 | drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \ | |
284 | __func__, "", fmt, ##args); \ | |
285 | }) | |
27528c66 L |
286 | |
287 | /** | |
288 | * Rate limited debug output. Like DRM_DEBUG() but won't flood the log. | |
289 | * | |
290 | * \param fmt printf() like format string. | |
291 | * \param arg arguments | |
292 | */ | |
c4e68a58 SP |
293 | #define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \ |
294 | DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args) | |
27528c66 | 295 | #define DRM_DEBUG_RATELIMITED(fmt, args...) \ |
c4e68a58 SP |
296 | DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args) |
297 | #define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \ | |
298 | _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args) | |
27528c66 | 299 | #define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \ |
c4e68a58 SP |
300 | DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args) |
301 | #define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \ | |
302 | _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args) | |
27528c66 | 303 | #define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \ |
c4e68a58 SP |
304 | DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args) |
305 | #define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \ | |
306 | _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args) | |
27528c66 | 307 | #define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \ |
c4e68a58 | 308 | DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args) |
27528c66 | 309 | |
65c7dc18 RC |
310 | /* Format strings and argument splitters to simplify printing |
311 | * various "complex" objects | |
312 | */ | |
313 | #define DRM_MODE_FMT "%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x" | |
314 | #define DRM_MODE_ARG(m) \ | |
315 | (m)->base.id, (m)->name, (m)->vrefresh, (m)->clock, \ | |
316 | (m)->hdisplay, (m)->hsync_start, (m)->hsync_end, (m)->htotal, \ | |
317 | (m)->vdisplay, (m)->vsync_start, (m)->vsync_end, (m)->vtotal, \ | |
318 | (m)->type, (m)->flags | |
319 | ||
320 | #define DRM_RECT_FMT "%dx%d%+d%+d" | |
321 | #define DRM_RECT_ARG(r) drm_rect_width(r), drm_rect_height(r), (r)->x1, (r)->y1 | |
322 | ||
323 | /* for rect's in fixed-point format: */ | |
324 | #define DRM_RECT_FP_FMT "%d.%06ux%d.%06u%+d.%06u%+d.%06u" | |
325 | #define DRM_RECT_FP_ARG(r) \ | |
326 | drm_rect_width(r) >> 16, ((drm_rect_width(r) & 0xffff) * 15625) >> 10, \ | |
327 | drm_rect_height(r) >> 16, ((drm_rect_height(r) & 0xffff) * 15625) >> 10, \ | |
328 | (r)->x1 >> 16, (((r)->x1 & 0xffff) * 15625) >> 10, \ | |
329 | (r)->y1 >> 16, (((r)->y1 & 0xffff) * 15625) >> 10 | |
330 | ||
1da177e4 LT |
331 | /*@}*/ |
332 | ||
1da177e4 LT |
333 | /***********************************************************************/ |
334 | /** \name Internal types and structures */ | |
335 | /*@{*/ | |
336 | ||
1da177e4 | 337 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
1da177e4 | 338 | |
1da177e4 LT |
339 | /** |
340 | * Ioctl function type. | |
341 | * | |
342 | * \param inode device inode. | |
6c340eac | 343 | * \param file_priv DRM file private pointer. |
1da177e4 LT |
344 | * \param cmd command. |
345 | * \param arg argument. | |
346 | */ | |
c153f45f EA |
347 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
348 | struct drm_file *file_priv); | |
1da177e4 | 349 | |
9a186645 DA |
350 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
351 | unsigned long arg); | |
352 | ||
1a95916f KH |
353 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
354 | #define DRM_MAJOR 226 | |
355 | ||
a7a2cc31 DA |
356 | #define DRM_AUTH 0x1 |
357 | #define DRM_MASTER 0x2 | |
358 | #define DRM_ROOT_ONLY 0x4 | |
f453ba04 | 359 | #define DRM_CONTROL_ALLOW 0x8 |
ed8b6704 | 360 | #define DRM_UNLOCKED 0x10 |
1793126f | 361 | #define DRM_RENDER_ALLOW 0x20 |
a7a2cc31 | 362 | |
c153f45f EA |
363 | struct drm_ioctl_desc { |
364 | unsigned int cmd; | |
a7a2cc31 | 365 | int flags; |
c972d750 | 366 | drm_ioctl_t *func; |
b9434d0f | 367 | const char *name; |
c153f45f EA |
368 | }; |
369 | ||
370 | /** | |
371 | * Creates a driver or general drm_ioctl_desc array entry for the given | |
372 | * ioctl, for use by drm_ioctl(). | |
373 | */ | |
1b2f1489 | 374 | |
066626d5 EV |
375 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
376 | [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \ | |
377 | .cmd = DRM_IOCTL_##ioctl, \ | |
378 | .func = _func, \ | |
379 | .flags = _flags, \ | |
380 | .name = #ioctl \ | |
381 | } | |
1da177e4 | 382 | |
c9a9c5e0 KH |
383 | /* Event queued up for userspace to read */ |
384 | struct drm_pending_event { | |
3b24f7d6 | 385 | struct completion *completion; |
c9a9c5e0 | 386 | struct drm_event *event; |
f54d1867 | 387 | struct dma_fence *fence; |
c9a9c5e0 | 388 | struct list_head link; |
681047b4 | 389 | struct list_head pending_link; |
c9a9c5e0 | 390 | struct drm_file *file_priv; |
b9c2c9ae JB |
391 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
392 | we deliver the event, for tracing only */ | |
c9a9c5e0 KH |
393 | }; |
394 | ||
3248877e | 395 | struct drm_prime_file_private { |
3248877e | 396 | struct mutex lock; |
077675c1 CW |
397 | struct rb_root dmabufs; |
398 | struct rb_root handles; | |
3248877e DA |
399 | }; |
400 | ||
1da177e4 | 401 | /** File private data */ |
84b1fd10 | 402 | struct drm_file { |
39868bd7 | 403 | unsigned authenticated :1; |
39868bd7 CW |
404 | /* true when the client has asked us to expose stereo 3D mode flags */ |
405 | unsigned stereo_allowed :1; | |
681e7ec7 MR |
406 | /* |
407 | * true if client understands CRTC primary planes and cursor planes | |
408 | * in the plane list | |
409 | */ | |
410 | unsigned universal_planes:1; | |
88a48e29 RC |
411 | /* true if client understands atomic properties */ |
412 | unsigned atomic:1; | |
a0af2e53 | 413 | /* |
0aae5920 | 414 | * This client is the creator of @master. |
a0af2e53 TH |
415 | * Protected by struct drm_device::master_mutex. |
416 | */ | |
0aae5920 | 417 | unsigned is_master:1; |
39868bd7 | 418 | |
5fce5e0b | 419 | struct pid *pid; |
b5e89ed5 | 420 | drm_magic_t magic; |
bd1b331f | 421 | struct list_head lhead; |
2c14f28b | 422 | struct drm_minor *minor; |
b5e89ed5 | 423 | unsigned long lock_count; |
7c1c2871 | 424 | |
673a394b EA |
425 | /** Mapping of mm object handles to object pointers. */ |
426 | struct idr object_idr; | |
427 | /** Lock for synchronization of access to object_idr. */ | |
428 | spinlock_t table_lock; | |
7c1c2871 | 429 | |
6c340eac | 430 | struct file *filp; |
8562b3f2 | 431 | void *driver_priv; |
7c1c2871 | 432 | |
7c1c2871 | 433 | struct drm_master *master; /* master this node is currently associated with |
95c081c1 | 434 | N.B. not always dev->master */ |
4b096ac1 DV |
435 | /** |
436 | * fbs - List of framebuffers associated with this file. | |
437 | * | |
438 | * Protected by fbs_lock. Note that the fbs list holds a reference on | |
439 | * the fb object to prevent it from untimely disappearing. | |
440 | */ | |
f453ba04 | 441 | struct list_head fbs; |
4b096ac1 | 442 | struct mutex fbs_lock; |
c9a9c5e0 | 443 | |
e2f5d2ea DS |
444 | /** User-created blob properties; this retains a reference on the |
445 | * property. */ | |
446 | struct list_head blobs; | |
447 | ||
c9a9c5e0 | 448 | wait_queue_head_t event_wait; |
681047b4 | 449 | struct list_head pending_event_list; |
c9a9c5e0 KH |
450 | struct list_head event_list; |
451 | int event_space; | |
3248877e | 452 | |
9b2c0b7f CW |
453 | struct mutex event_read_lock; |
454 | ||
3248877e | 455 | struct drm_prime_file_private prime; |
84b1fd10 | 456 | }; |
1da177e4 | 457 | |
1da177e4 LT |
458 | /** |
459 | * Lock data. | |
460 | */ | |
55910517 | 461 | struct drm_lock_data { |
c60ce623 | 462 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
8562b3f2 DA |
463 | /** Private of lock holder's file (NULL=kernel) */ |
464 | struct drm_file *file_priv; | |
1da177e4 | 465 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
b5e89ed5 | 466 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
040ac320 TH |
467 | spinlock_t spinlock; |
468 | uint32_t kernel_waiters; | |
469 | uint32_t user_waiters; | |
470 | int idle_has_lock; | |
55910517 | 471 | }; |
1da177e4 | 472 | |
27641c3f MK |
473 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
474 | #define DRM_CALLED_FROM_VBLIRQ 1 | |
475 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) | |
3d3cbd84 | 476 | #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) |
27641c3f MK |
477 | |
478 | /* get_scanout_position() return flags */ | |
479 | #define DRM_SCANOUTPOS_VALID (1 << 0) | |
3d3cbd84 | 480 | #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) |
27641c3f MK |
481 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
482 | ||
1da177e4 LT |
483 | /** |
484 | * DRM driver structure. This structure represent the common code for | |
485 | * a family of cards. There will one drm_device for each card present | |
486 | * in this family | |
487 | */ | |
1da177e4 | 488 | struct drm_driver { |
22eae947 DA |
489 | int (*load) (struct drm_device *, unsigned long flags); |
490 | int (*firstopen) (struct drm_device *); | |
84b1fd10 | 491 | int (*open) (struct drm_device *, struct drm_file *); |
6c340eac | 492 | void (*preclose) (struct drm_device *, struct drm_file *file_priv); |
84b1fd10 | 493 | void (*postclose) (struct drm_device *, struct drm_file *); |
22eae947 DA |
494 | void (*lastclose) (struct drm_device *); |
495 | int (*unload) (struct drm_device *); | |
c153f45f | 496 | int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); |
b5e89ed5 | 497 | int (*dma_quiescent) (struct drm_device *); |
84b1fd10 | 498 | int (*context_dtor) (struct drm_device *dev, int context); |
915b4d11 | 499 | int (*set_busid)(struct drm_device *dev, struct drm_master *master); |
b5e89ed5 | 500 | |
0a3e67a4 JB |
501 | /** |
502 | * get_vblank_counter - get raw hardware vblank counter | |
503 | * @dev: DRM device | |
88e72717 | 504 | * @pipe: counter to fetch |
0a3e67a4 | 505 | * |
3b02ab88 LP |
506 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
507 | * If a device doesn't have a hardware counter, the driver can simply | |
33779007 | 508 | * use drm_vblank_no_hw_counter() function. The DRM core will account for |
3b02ab88 LP |
509 | * missed vblank events while interrupts where disabled based on system |
510 | * timestamps. | |
0a3e67a4 JB |
511 | * |
512 | * Wraparound handling and loss of events due to modesetting is dealt | |
513 | * with in the DRM core code. | |
514 | * | |
515 | * RETURNS | |
516 | * Raw vblank counter value. | |
517 | */ | |
88e72717 | 518 | u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); |
0a3e67a4 JB |
519 | |
520 | /** | |
521 | * enable_vblank - enable vblank interrupt events | |
522 | * @dev: DRM device | |
88e72717 | 523 | * @pipe: which irq to enable |
0a3e67a4 JB |
524 | * |
525 | * Enable vblank interrupts for @crtc. If the device doesn't have | |
33779007 LD |
526 | * a hardware vblank counter, the driver should use the |
527 | * drm_vblank_no_hw_counter() function that keeps a virtual counter. | |
0a3e67a4 JB |
528 | * |
529 | * RETURNS | |
530 | * Zero on success, appropriate errno if the given @crtc's vblank | |
531 | * interrupt cannot be enabled. | |
532 | */ | |
88e72717 | 533 | int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); |
0a3e67a4 JB |
534 | |
535 | /** | |
536 | * disable_vblank - disable vblank interrupt events | |
537 | * @dev: DRM device | |
88e72717 | 538 | * @pipe: which irq to enable |
0a3e67a4 JB |
539 | * |
540 | * Disable vblank interrupts for @crtc. If the device doesn't have | |
33779007 LD |
541 | * a hardware vblank counter, the driver should use the |
542 | * drm_vblank_no_hw_counter() function that keeps a virtual counter. | |
0a3e67a4 | 543 | */ |
88e72717 | 544 | void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); |
0a3e67a4 | 545 | |
cda17380 DA |
546 | /** |
547 | * Called by \c drm_device_is_agp. Typically used to determine if a | |
548 | * card is really attached to AGP or not. | |
549 | * | |
550 | * \param dev DRM device handle | |
551 | * | |
552 | * \returns | |
553 | * One of three values is returned depending on whether or not the | |
554 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP | |
555 | * (return of 1), or may or may not be AGP (return of 2). | |
556 | */ | |
84b1fd10 | 557 | int (*device_is_agp) (struct drm_device *dev); |
cda17380 | 558 | |
27641c3f MK |
559 | /** |
560 | * Called by vblank timestamping code. | |
561 | * | |
8f6fce03 MK |
562 | * Return the current display scanout position from a crtc, and an |
563 | * optional accurate ktime_get timestamp of when position was measured. | |
27641c3f MK |
564 | * |
565 | * \param dev DRM device. | |
88e72717 | 566 | * \param pipe Id of the crtc to query. |
abca9e45 | 567 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
27641c3f MK |
568 | * \param *vpos Target location for current vertical scanout position. |
569 | * \param *hpos Target location for current horizontal scanout position. | |
8f6fce03 MK |
570 | * \param *stime Target location for timestamp taken immediately before |
571 | * scanout position query. Can be NULL to skip timestamp. | |
572 | * \param *etime Target location for timestamp taken immediately after | |
573 | * scanout position query. Can be NULL to skip timestamp. | |
3bb403bf | 574 | * \param mode Current display timings. |
27641c3f MK |
575 | * |
576 | * Returns vpos as a positive number while in active scanout area. | |
577 | * Returns vpos as a negative number inside vblank, counting the number | |
578 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline | |
579 | * until start of active scanout / end of vblank." | |
580 | * | |
581 | * \return Flags, or'ed together as follows: | |
582 | * | |
25985edc | 583 | * DRM_SCANOUTPOS_VALID = Query successful. |
27641c3f MK |
584 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
585 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of | |
586 | * this flag means that returned position may be offset by a constant | |
587 | * but unknown small number of scanlines wrt. real scanout position. | |
588 | * | |
589 | */ | |
88e72717 TR |
590 | int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, |
591 | unsigned int flags, int *vpos, int *hpos, | |
3bb403bf VS |
592 | ktime_t *stime, ktime_t *etime, |
593 | const struct drm_display_mode *mode); | |
27641c3f MK |
594 | |
595 | /** | |
596 | * Called by \c drm_get_last_vbltimestamp. Should return a precise | |
597 | * timestamp when the most recent VBLANK interval ended or will end. | |
598 | * | |
599 | * Specifically, the timestamp in @vblank_time should correspond as | |
600 | * closely as possible to the time when the first video scanline of | |
601 | * the video frame after the end of VBLANK will start scanning out, | |
42b2aa86 | 602 | * the time immediately after end of the VBLANK interval. If the |
27641c3f MK |
603 | * @crtc is currently inside VBLANK, this will be a time in the future. |
604 | * If the @crtc is currently scanning out a frame, this will be the | |
605 | * past start time of the current scanout. This is meant to adhere | |
606 | * to the OpenML OML_sync_control extension specification. | |
607 | * | |
608 | * \param dev dev DRM device handle. | |
88e72717 | 609 | * \param pipe crtc for which timestamp should be returned. |
27641c3f MK |
610 | * \param *max_error Maximum allowable timestamp error in nanoseconds. |
611 | * Implementation should strive to provide timestamp | |
612 | * with an error of at most *max_error nanoseconds. | |
613 | * Returns true upper bound on error for timestamp. | |
614 | * \param *vblank_time Target location for returned vblank timestamp. | |
615 | * \param flags 0 = Defaults, no special treatment needed. | |
616 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank | |
617 | * irq handler. Some drivers need to apply some workarounds | |
618 | * for gpu-specific vblank irq quirks if flag is set. | |
619 | * | |
620 | * \returns | |
621 | * Zero if timestamping isn't supported in current display mode or a | |
622 | * negative number on failure. A positive status code on success, | |
623 | * which describes how the vblank_time timestamp was computed. | |
624 | */ | |
88e72717 | 625 | int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, |
27641c3f MK |
626 | int *max_error, |
627 | struct timeval *vblank_time, | |
628 | unsigned flags); | |
629 | ||
1da177e4 | 630 | /* these have to be filled in */ |
b5e89ed5 | 631 | |
e9f0d76f | 632 | irqreturn_t(*irq_handler) (int irq, void *arg); |
84b1fd10 | 633 | void (*irq_preinstall) (struct drm_device *dev); |
0a3e67a4 | 634 | int (*irq_postinstall) (struct drm_device *dev); |
84b1fd10 | 635 | void (*irq_uninstall) (struct drm_device *dev); |
22eae947 | 636 | |
7c1c2871 DA |
637 | /* Master routines */ |
638 | int (*master_create)(struct drm_device *dev, struct drm_master *master); | |
639 | void (*master_destroy)(struct drm_device *dev, struct drm_master *master); | |
862302ff TH |
640 | /** |
641 | * master_set is called whenever the minor master is set. | |
642 | * master_drop is called whenever the minor master is dropped. | |
643 | */ | |
644 | ||
645 | int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, | |
646 | bool from_open); | |
d6ed682e | 647 | void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv); |
7c1c2871 | 648 | |
955b12de BG |
649 | int (*debugfs_init)(struct drm_minor *minor); |
650 | void (*debugfs_cleanup)(struct drm_minor *minor); | |
673a394b EA |
651 | |
652 | /** | |
9f0ba539 | 653 | * @gem_free_object: deconstructor for drm_gem_objects |
673a394b | 654 | * |
9f0ba539 DV |
655 | * This is deprecated and should not be used by new drivers. Use |
656 | * @gem_free_object_unlocked instead. | |
673a394b | 657 | */ |
673a394b | 658 | void (*gem_free_object) (struct drm_gem_object *obj); |
9f0ba539 DV |
659 | |
660 | /** | |
661 | * @gem_free_object_unlocked: deconstructor for drm_gem_objects | |
662 | * | |
663 | * This is for drivers which are not encumbered with dev->struct_mutex | |
664 | * legacy locking schemes. Use this hook instead of @gem_free_object. | |
665 | */ | |
666 | void (*gem_free_object_unlocked) (struct drm_gem_object *obj); | |
667 | ||
304eda32 BS |
668 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
669 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); | |
673a394b | 670 | |
10028c5a EA |
671 | /** |
672 | * Hook for allocating the GEM object struct, for use by core | |
673 | * helpers. | |
674 | */ | |
675 | struct drm_gem_object *(*gem_create_object)(struct drm_device *dev, | |
676 | size_t size); | |
677 | ||
3248877e DA |
678 | /* prime: */ |
679 | /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ | |
680 | int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, | |
681 | uint32_t handle, uint32_t flags, int *prime_fd); | |
682 | /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ | |
683 | int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, | |
684 | int prime_fd, uint32_t *handle); | |
685 | /* export GEM -> dmabuf */ | |
686 | struct dma_buf * (*gem_prime_export)(struct drm_device *dev, | |
687 | struct drm_gem_object *obj, int flags); | |
688 | /* import dmabuf -> GEM */ | |
689 | struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, | |
690 | struct dma_buf *dma_buf); | |
89177644 AP |
691 | /* low-level interface used by drm_gem_prime_{import,export} */ |
692 | int (*gem_prime_pin)(struct drm_gem_object *obj); | |
102d6dba | 693 | void (*gem_prime_unpin)(struct drm_gem_object *obj); |
3aac4502 ML |
694 | struct reservation_object * (*gem_prime_res_obj)( |
695 | struct drm_gem_object *obj); | |
89177644 AP |
696 | struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); |
697 | struct drm_gem_object *(*gem_prime_import_sg_table)( | |
b5e9c1a2 ML |
698 | struct drm_device *dev, |
699 | struct dma_buf_attachment *attach, | |
89177644 AP |
700 | struct sg_table *sgt); |
701 | void *(*gem_prime_vmap)(struct drm_gem_object *obj); | |
702 | void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); | |
7c397cd9 JS |
703 | int (*gem_prime_mmap)(struct drm_gem_object *obj, |
704 | struct vm_area_struct *vma); | |
3248877e | 705 | |
28d52043 DA |
706 | /* vga arb irq handler */ |
707 | void (*vgaarb_irq)(struct drm_device *dev, bool state); | |
708 | ||
ff72145b DA |
709 | /* dumb alloc support */ |
710 | int (*dumb_create)(struct drm_file *file_priv, | |
711 | struct drm_device *dev, | |
712 | struct drm_mode_create_dumb *args); | |
713 | int (*dumb_map_offset)(struct drm_file *file_priv, | |
714 | struct drm_device *dev, uint32_t handle, | |
715 | uint64_t *offset); | |
716 | int (*dumb_destroy)(struct drm_file *file_priv, | |
717 | struct drm_device *dev, | |
718 | uint32_t handle); | |
719 | ||
a2c0a97b | 720 | /* Driver private ops for this object */ |
78b68556 | 721 | const struct vm_operations_struct *gem_vm_ops; |
a2c0a97b | 722 | |
22eae947 DA |
723 | int major; |
724 | int minor; | |
725 | int patchlevel; | |
726 | char *name; | |
727 | char *desc; | |
728 | char *date; | |
729 | ||
1da177e4 LT |
730 | u32 driver_features; |
731 | int dev_priv_size; | |
baa70943 | 732 | const struct drm_ioctl_desc *ioctls; |
1da177e4 | 733 | int num_ioctls; |
e08e96de | 734 | const struct file_operations *fops; |
8410ea3b | 735 | |
b3f2333d DV |
736 | /* List of devices hanging off this driver with stealth attach. */ |
737 | struct list_head legacy_dev_list; | |
1da177e4 LT |
738 | }; |
739 | ||
cb8a239b | 740 | enum drm_minor_type { |
a3ccc461 | 741 | DRM_MINOR_PRIMARY, |
cb8a239b DH |
742 | DRM_MINOR_CONTROL, |
743 | DRM_MINOR_RENDER, | |
744 | DRM_MINOR_CNT, | |
745 | }; | |
2c14f28b | 746 | |
955b12de BG |
747 | /** |
748 | * Info file list entry. This structure represents a debugfs or proc file to | |
749 | * be created by the drm core | |
750 | */ | |
751 | struct drm_info_list { | |
752 | const char *name; /** file name */ | |
753 | int (*show)(struct seq_file*, void*); /** show callback */ | |
754 | u32 driver_features; /**< Required driver features for this entry */ | |
755 | void *data; | |
756 | }; | |
757 | ||
758 | /** | |
759 | * debugfs node structure. This structure represents a debugfs file. | |
760 | */ | |
761 | struct drm_info_node { | |
762 | struct list_head list; | |
763 | struct drm_minor *minor; | |
ce089b54 | 764 | const struct drm_info_list *info_ent; |
955b12de BG |
765 | struct dentry *dent; |
766 | }; | |
767 | ||
1da177e4 | 768 | /** |
2c14f28b | 769 | * DRM minor structure. This structure represents a drm minor number. |
1da177e4 | 770 | */ |
2c14f28b DA |
771 | struct drm_minor { |
772 | int index; /**< Minor device number */ | |
773 | int type; /**< Control or render */ | |
5bdebb18 | 774 | struct device *kdev; /**< Linux device */ |
1da177e4 | 775 | struct drm_device *dev; |
955b12de | 776 | |
955b12de | 777 | struct dentry *debugfs_root; |
b3e067c0 MS |
778 | |
779 | struct list_head debugfs_list; | |
780 | struct mutex debugfs_lock; /* Protects debugfs_list. */ | |
84b1fd10 | 781 | }; |
1da177e4 LT |
782 | |
783 | /** | |
784 | * DRM device structure. This structure represent a complete card that | |
785 | * may contain multiple heads. | |
786 | */ | |
84b1fd10 | 787 | struct drm_device { |
b3f2333d | 788 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
b5e89ed5 | 789 | int if_version; /**< Highest interface version set */ |
1da177e4 | 790 | |
45e212d2 DH |
791 | /** \name Lifetime Management */ |
792 | /*@{ */ | |
099d1c29 | 793 | struct kref ref; /**< Object ref-count */ |
45e212d2 DH |
794 | struct device *dev; /**< Device structure of bus-device */ |
795 | struct drm_driver *driver; /**< DRM driver managing the device */ | |
796 | void *dev_private; /**< DRM driver private data */ | |
45e212d2 DH |
797 | struct drm_minor *control; /**< Control node */ |
798 | struct drm_minor *primary; /**< Primary node */ | |
799 | struct drm_minor *render; /**< Render node */ | |
95c081c1 DV |
800 | |
801 | /* currently active master for this device. Protected by master_mutex */ | |
802 | struct drm_master *master; | |
803 | ||
45e212d2 | 804 | atomic_t unplugged; /**< Flag whether dev is dead */ |
07b48c3a | 805 | struct inode *anon_inode; /**< inode for private address-space */ |
ca8e2ad7 | 806 | char *unique; /**< unique name of the device */ |
45e212d2 DH |
807 | /*@} */ |
808 | ||
1da177e4 | 809 | /** \name Locks */ |
b5e89ed5 | 810 | /*@{ */ |
30e2fb18 | 811 | struct mutex struct_mutex; /**< For others */ |
c996fd0b | 812 | struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
b5e89ed5 | 813 | /*@} */ |
1da177e4 LT |
814 | |
815 | /** \name Usage Counters */ | |
b5e89ed5 | 816 | /*@{ */ |
fc8fd40e | 817 | int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
2177a218 | 818 | spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
b5e89ed5 DA |
819 | int buf_use; /**< Buffers in use -- cannot alloc */ |
820 | atomic_t buf_alloc; /**< Buffer allocation in progress */ | |
821 | /*@} */ | |
1da177e4 | 822 | |
1d2ac403 | 823 | struct mutex filelist_mutex; |
bd1b331f | 824 | struct list_head filelist; |
1da177e4 LT |
825 | |
826 | /** \name Memory management */ | |
b5e89ed5 | 827 | /*@{ */ |
bd1b331f | 828 | struct list_head maplist; /**< Linked list of regions */ |
e0be428e | 829 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
1da177e4 LT |
830 | |
831 | /** \name Context handle management */ | |
b5e89ed5 | 832 | /*@{ */ |
bd1b331f | 833 | struct list_head ctxlist; /**< Linked list of context handles */ |
30e2fb18 | 834 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1da177e4 | 835 | |
62968144 | 836 | struct idr ctx_idr; |
1da177e4 | 837 | |
bd1b331f | 838 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
f453ba04 | 839 | |
b5e89ed5 | 840 | /*@} */ |
1da177e4 | 841 | |
a344a7e7 | 842 | /** \name DMA support */ |
b5e89ed5 | 843 | /*@{ */ |
cdd55a29 | 844 | struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
b5e89ed5 | 845 | /*@} */ |
1da177e4 LT |
846 | |
847 | /** \name Context support */ | |
b5e89ed5 | 848 | /*@{ */ |
7c1a38e3 | 849 | |
1da177e4 | 850 | __volatile__ long context_flag; /**< Context swapping flag */ |
b5e89ed5 | 851 | int last_context; /**< Last current context */ |
b5e89ed5 DA |
852 | /*@} */ |
853 | ||
1da177e4 | 854 | /** \name VBLANK IRQ support */ |
b5e89ed5 | 855 | /*@{ */ |
b46004b7 TR |
856 | bool irq_enabled; |
857 | int irq; | |
b5e89ed5 | 858 | |
00185e66 VS |
859 | /* |
860 | * If true, vblank interrupt will be disabled immediately when the | |
861 | * refcount drops to zero, as opposed to via the vblank disable | |
862 | * timer. | |
863 | * This can be set to true it the hardware has a working vblank | |
864 | * counter and the driver uses drm_vblank_on() and drm_vblank_off() | |
865 | * appropriately. | |
866 | */ | |
867 | bool vblank_disable_immediate; | |
868 | ||
5380e929 VS |
869 | /* array of size num_crtcs */ |
870 | struct drm_vblank_crtc *vblank; | |
0a3e67a4 | 871 | |
27641c3f | 872 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
b5e89ed5 | 873 | spinlock_t vbl_lock; |
0a3e67a4 JB |
874 | |
875 | u32 max_vblank_count; /**< size of vblank counter register */ | |
b5e89ed5 | 876 | |
c9a9c5e0 KH |
877 | /** |
878 | * List of events | |
879 | */ | |
880 | struct list_head vblank_event_list; | |
881 | spinlock_t event_lock; | |
882 | ||
b5e89ed5 | 883 | /*@} */ |
b5e89ed5 | 884 | |
55910517 | 885 | struct drm_agp_head *agp; /**< AGP data */ |
1da177e4 | 886 | |
b5e89ed5 | 887 | struct pci_dev *pdev; /**< PCI device structure */ |
1da177e4 | 888 | #ifdef __alpha__ |
1da177e4 | 889 | struct pci_controller *hose; |
1da177e4 | 890 | #endif |
dcdb1674 JC |
891 | |
892 | struct platform_device *platformdev; /**< Platform device struture */ | |
dc5698e8 | 893 | struct virtio_device *virtdev; |
dcdb1674 | 894 | |
55910517 | 895 | struct drm_sg_mem *sg; /**< Scatter gather memory */ |
19227561 | 896 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
b5e89ed5 | 897 | |
69d516c0 DH |
898 | struct { |
899 | int context; | |
900 | struct drm_hw_lock *lock; | |
901 | } sigdata; | |
902 | ||
f77d390c | 903 | struct drm_local_map *agp_buffer_map; |
d1f2b55a | 904 | unsigned int agp_buffer_token; |
bea5679f | 905 | |
417009fb | 906 | struct drm_mode_config mode_config; /**< Current mode config */ |
f453ba04 | 907 | |
673a394b EA |
908 | /** \name GEM information */ |
909 | /*@{ */ | |
cd4f013f | 910 | struct mutex object_name_lock; |
673a394b | 911 | struct idr object_name_idr; |
b04a5906 | 912 | struct drm_vma_offset_manager *vma_offset_manager; |
673a394b | 913 | /*@} */ |
5bcf719b | 914 | int switch_power_state; |
84b1fd10 | 915 | }; |
1da177e4 | 916 | |
34a67dd7 DV |
917 | #include <drm/drm_irq.h> |
918 | ||
5bcf719b DA |
919 | #define DRM_SWITCH_POWER_ON 0 |
920 | #define DRM_SWITCH_POWER_OFF 1 | |
921 | #define DRM_SWITCH_POWER_CHANGING 2 | |
13bb9cc8 | 922 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
5bcf719b | 923 | |
b5e89ed5 DA |
924 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
925 | int feature) | |
1da177e4 LT |
926 | { |
927 | return ((dev->driver->driver_features & feature) ? 1 : 0); | |
928 | } | |
929 | ||
2c07a21d DA |
930 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
931 | { | |
932 | smp_wmb(); | |
933 | atomic_set(&dev->unplugged, 1); | |
934 | } | |
935 | ||
936 | static inline int drm_device_is_unplugged(struct drm_device *dev) | |
937 | { | |
938 | int ret = atomic_read(&dev->unplugged); | |
939 | smp_rmb(); | |
940 | return ret; | |
941 | } | |
942 | ||
43683057 | 943 | static inline bool drm_is_render_client(const struct drm_file *file_priv) |
1793126f DH |
944 | { |
945 | return file_priv->minor->type == DRM_MINOR_RENDER; | |
946 | } | |
947 | ||
ac05dbc5 TH |
948 | static inline bool drm_is_control_client(const struct drm_file *file_priv) |
949 | { | |
950 | return file_priv->minor->type == DRM_MINOR_CONTROL; | |
951 | } | |
952 | ||
43683057 TH |
953 | static inline bool drm_is_primary_client(const struct drm_file *file_priv) |
954 | { | |
a3ccc461 | 955 | return file_priv->minor->type == DRM_MINOR_PRIMARY; |
43683057 TH |
956 | } |
957 | ||
1da177e4 LT |
958 | /******************************************************************/ |
959 | /** \name Internal function definitions */ | |
960 | /*@{*/ | |
961 | ||
1da177e4 | 962 | /* Driver support (drm_drv.h) */ |
5101020c | 963 | extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv); |
ed8b6704 AB |
964 | extern long drm_ioctl(struct file *filp, |
965 | unsigned int cmd, unsigned long arg); | |
55edf41b | 966 | #ifdef CONFIG_COMPAT |
b5e89ed5 DA |
967 | extern long drm_compat_ioctl(struct file *filp, |
968 | unsigned int cmd, unsigned long arg); | |
55edf41b JN |
969 | #else |
970 | /* Let drm_compat_ioctl be assigned to .compat_ioctl unconditionally */ | |
971 | #define drm_compat_ioctl NULL | |
972 | #endif | |
4beb6d9f | 973 | extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); |
1da177e4 | 974 | |
bcb877e4 DV |
975 | /* File Operations (drm_fops.c) */ |
976 | int drm_open(struct inode *inode, struct file *filp); | |
977 | ssize_t drm_read(struct file *filp, char __user *buffer, | |
978 | size_t count, loff_t *offset); | |
979 | int drm_release(struct inode *inode, struct file *filp); | |
bcb877e4 | 980 | unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
4020b220 DV |
981 | int drm_event_reserve_init_locked(struct drm_device *dev, |
982 | struct drm_file *file_priv, | |
983 | struct drm_pending_event *p, | |
984 | struct drm_event *e); | |
2dd500f1 DV |
985 | int drm_event_reserve_init(struct drm_device *dev, |
986 | struct drm_file *file_priv, | |
987 | struct drm_pending_event *p, | |
988 | struct drm_event *e); | |
989 | void drm_event_cancel_free(struct drm_device *dev, | |
990 | struct drm_pending_event *p); | |
fb740cf2 DV |
991 | void drm_send_event_locked(struct drm_device *dev, struct drm_pending_event *e); |
992 | void drm_send_event(struct drm_device *dev, struct drm_pending_event *e); | |
1da177e4 | 993 | |
78238757 DV |
994 | /* Misc. IOCTL support (drm_ioctl.c) */ |
995 | int drm_noop(struct drm_device *dev, void *data, | |
996 | struct drm_file *file_priv); | |
4b63539b DV |
997 | int drm_invalid_op(struct drm_device *dev, void *data, |
998 | struct drm_file *file_priv); | |
1da177e4 | 999 | |
673a394b EA |
1000 | /* Cache management (drm_cache.c) */ |
1001 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); | |
9da3da66 | 1002 | void drm_clflush_sg(struct sg_table *st); |
c2d15359 | 1003 | void drm_clflush_virt_range(void *addr, unsigned long length); |
673a394b | 1004 | |
040ac320 TH |
1005 | /* |
1006 | * These are exported to drivers so that they can implement fencing using | |
1007 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. | |
1008 | */ | |
1009 | ||
0a3e67a4 | 1010 | /* Modesetting support */ |
cc1ef118 TR |
1011 | extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); |
1012 | extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); | |
1da177e4 | 1013 | |
b3ac9f25 DV |
1014 | /* drm_drv.c */ |
1015 | void drm_put_dev(struct drm_device *dev); | |
1016 | void drm_unplug_dev(struct drm_device *dev); | |
b5e89ed5 | 1017 | extern unsigned int drm_debug; |
2c14f28b | 1018 | |
955b12de BG |
1019 | /* Debugfs support */ |
1020 | #if defined(CONFIG_DEBUG_FS) | |
7d74795b LD |
1021 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
1022 | int count, struct dentry *root, | |
1023 | struct drm_minor *minor); | |
1024 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, | |
1025 | int count, struct drm_minor *minor); | |
66ee52e2 | 1026 | #else |
66ee52e2 TR |
1027 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
1028 | int count, struct dentry *root, | |
1029 | struct drm_minor *minor) | |
1030 | { | |
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, | |
1035 | int count, struct drm_minor *minor) | |
1036 | { | |
1037 | return 0; | |
1038 | } | |
955b12de BG |
1039 | #endif |
1040 | ||
a4fce9cb CW |
1041 | struct dma_buf_export_info; |
1042 | ||
89177644 | 1043 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
56a76c01 CW |
1044 | struct drm_gem_object *obj, |
1045 | int flags); | |
3248877e DA |
1046 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
1047 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, | |
1048 | int *prime_fd); | |
89177644 AP |
1049 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
1050 | struct dma_buf *dma_buf); | |
3248877e DA |
1051 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
1052 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); | |
a4fce9cb CW |
1053 | struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev, |
1054 | struct dma_buf_export_info *exp_info); | |
c1d6798d | 1055 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
3248877e | 1056 | |
51ab7ba2 DA |
1057 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
1058 | dma_addr_t *addrs, int max_pages); | |
34eab43e | 1059 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); |
3248877e DA |
1060 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); |
1061 | ||
1da177e4 | 1062 | |
ba8286fa DV |
1063 | extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, |
1064 | size_t align); | |
1065 | extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); | |
1da177e4 LT |
1066 | |
1067 | /* sysfs support (drm_sysfs.c) */ | |
f453ba04 | 1068 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
1da177e4 | 1069 | |
673a394b | 1070 | |
1bb72532 DH |
1071 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
1072 | struct device *parent); | |
b209aca3 CW |
1073 | int drm_dev_init(struct drm_device *dev, |
1074 | struct drm_driver *driver, | |
1075 | struct device *parent); | |
099d1c29 DH |
1076 | void drm_dev_ref(struct drm_device *dev); |
1077 | void drm_dev_unref(struct drm_device *dev); | |
c22f0ace | 1078 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
c3a49737 | 1079 | void drm_dev_unregister(struct drm_device *dev); |
1616c525 DH |
1080 | |
1081 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); | |
1082 | void drm_minor_release(struct drm_minor *minor); | |
1083 | ||
8410ea3b DA |
1084 | /*@}*/ |
1085 | ||
1086 | /* PCI section */ | |
1087 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) | |
1088 | { | |
b5e89ed5 DA |
1089 | if (dev->driver->device_is_agp != NULL) { |
1090 | int err = (*dev->driver->device_is_agp) (dev); | |
1091 | ||
cda17380 DA |
1092 | if (err != 2) { |
1093 | return err; | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); | |
1098 | } | |
4efafebe | 1099 | void drm_pci_agp_destroy(struct drm_device *dev); |
cda17380 | 1100 | |
8410ea3b DA |
1101 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
1102 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); | |
a9e3c90c | 1103 | #ifdef CONFIG_PCI |
8410ea3b | 1104 | extern int drm_get_pci_dev(struct pci_dev *pdev, |
dcdb1674 JC |
1105 | const struct pci_device_id *ent, |
1106 | struct drm_driver *driver); | |
915b4d11 | 1107 | extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); |
a9e3c90c TR |
1108 | #else |
1109 | static inline int drm_get_pci_dev(struct pci_dev *pdev, | |
1110 | const struct pci_device_id *ent, | |
1111 | struct drm_driver *driver) | |
1112 | { | |
1113 | return -ENOSYS; | |
1114 | } | |
1115 | ||
1116 | static inline int drm_pci_set_busid(struct drm_device *dev, | |
1117 | struct drm_master *master) | |
1118 | { | |
1119 | return -ENOSYS; | |
1120 | } | |
1121 | #endif | |
8410ea3b | 1122 | |
f4297784 DA |
1123 | #define DRM_PCIE_SPEED_25 1 |
1124 | #define DRM_PCIE_SPEED_50 2 | |
1125 | #define DRM_PCIE_SPEED_80 4 | |
1126 | ||
1127 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); | |
60d8edd4 | 1128 | extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw); |
8410ea3b DA |
1129 | |
1130 | /* platform section */ | |
1131 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); | |
8410ea3b | 1132 | |
cc1f7194 DA |
1133 | /* returns true if currently okay to sleep */ |
1134 | static __inline__ bool drm_can_sleep(void) | |
1135 | { | |
1136 | if (in_atomic() || in_dbg_master() || irqs_disabled()) | |
1137 | return false; | |
1138 | return true; | |
1139 | } | |
1140 | ||
373701b1 JN |
1141 | /* helper for handling conditionals in various for_each macros */ |
1142 | #define for_each_if(condition) if (!(condition)) {} else | |
1143 | ||
1da177e4 | 1144 | #endif |