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> |
96993908 DH |
54 | #include <linux/sched.h> |
55 | #include <linux/slab.h> | |
1da177e4 | 56 | #include <linux/types.h> |
d6db6564 | 57 | #include <linux/vmalloc.h> |
96993908 DH |
58 | #include <linux/workqueue.h> |
59 | ||
60 | #include <asm/mman.h> | |
1da177e4 | 61 | #include <asm/pgalloc.h> |
96993908 DH |
62 | #include <asm/uaccess.h> |
63 | ||
d7d2c48e DH |
64 | #include <uapi/drm/drm.h> |
65 | #include <uapi/drm/drm_mode.h> | |
66 | ||
67 | #include <drm/drm_agpsupport.h> | |
68 | #include <drm/drm_crtc.h> | |
69 | #include <drm/drm_global.h> | |
96993908 | 70 | #include <drm/drm_hashtab.h> |
d7d2c48e | 71 | #include <drm/drm_mem_util.h> |
96993908 DH |
72 | #include <drm/drm_mm.h> |
73 | #include <drm/drm_os_linux.h> | |
19218e48 | 74 | #include <drm/drm_sarea.h> |
0de23977 | 75 | #include <drm/drm_vma_manager.h> |
1da177e4 | 76 | |
de477254 PG |
77 | struct module; |
78 | ||
c153f45f EA |
79 | struct drm_file; |
80 | struct drm_device; | |
cc5ea594 | 81 | struct drm_agp_head; |
ba8286fa DV |
82 | struct drm_local_map; |
83 | struct drm_device_dma; | |
84 | struct drm_dma_handle; | |
d9fc9413 | 85 | struct drm_gem_object; |
c153f45f | 86 | |
edb37a95 | 87 | struct device_node; |
ebc64e45 | 88 | struct videomode; |
3aac4502 | 89 | struct reservation_object; |
ebc64e45 | 90 | |
87fdff81 | 91 | /* |
1414b76c LD |
92 | * 4 debug categories are defined: |
93 | * | |
94 | * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... | |
95 | * This is the category used by the DRM_DEBUG() macro. | |
96 | * | |
97 | * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... | |
98 | * This is the category used by the DRM_DEBUG_DRIVER() macro. | |
87fdff81 | 99 | * |
1414b76c LD |
100 | * KMS: used in the modesetting code. |
101 | * This is the category used by the DRM_DEBUG_KMS() macro. | |
87fdff81 | 102 | * |
1414b76c LD |
103 | * PRIME: used in the prime code. |
104 | * This is the category used by the DRM_DEBUG_PRIME() macro. | |
87fdff81 | 105 | * |
1414b76c LD |
106 | * Enabling verbose debug messages is done through the drm.debug parameter, |
107 | * each category being enabled by a bit. | |
108 | * | |
109 | * drm.debug=0x1 will enable CORE messages | |
110 | * drm.debug=0x2 will enable DRIVER messages | |
111 | * drm.debug=0x3 will enable CORE and DRIVER messages | |
112 | * ... | |
113 | * drm.debug=0xf will enable all messages | |
114 | * | |
115 | * An interesting feature is that it's possible to enable verbose logging at | |
116 | * run-time by echoing the debug value in its sysfs node: | |
117 | * # echo 0xf > /sys/module/drm/parameters/debug | |
87fdff81 | 118 | */ |
1414b76c LD |
119 | #define DRM_UT_CORE 0x01 |
120 | #define DRM_UT_DRIVER 0x02 | |
121 | #define DRM_UT_KMS 0x04 | |
122 | #define DRM_UT_PRIME 0x08 | |
4fefcb27 | 123 | |
1287aa90 LD |
124 | extern __printf(2, 3) |
125 | void drm_ut_debug_printk(const char *function_name, | |
b9075fa9 JP |
126 | const char *format, ...); |
127 | extern __printf(2, 3) | |
9908fb65 | 128 | void drm_err(const char *func, const char *format, ...); |
5ad3d883 | 129 | |
1da177e4 LT |
130 | /***********************************************************************/ |
131 | /** \name DRM template customization defaults */ | |
132 | /*@{*/ | |
133 | ||
134 | /* driver capabilities and requirements mask */ | |
135 | #define DRIVER_USE_AGP 0x1 | |
1da177e4 LT |
136 | #define DRIVER_PCI_DMA 0x8 |
137 | #define DRIVER_SG 0x10 | |
138 | #define DRIVER_HAVE_DMA 0x20 | |
139 | #define DRIVER_HAVE_IRQ 0x40 | |
140 | #define DRIVER_IRQ_SHARED 0x80 | |
673a394b | 141 | #define DRIVER_GEM 0x1000 |
f453ba04 | 142 | #define DRIVER_MODESET 0x2000 |
3248877e | 143 | #define DRIVER_PRIME 0x4000 |
1793126f | 144 | #define DRIVER_RENDER 0x8000 |
8410ea3b | 145 | |
1da177e4 | 146 | /***********************************************************************/ |
1da177e4 LT |
147 | /** \name Macros to make printk easier */ |
148 | /*@{*/ | |
149 | ||
150 | /** | |
151 | * Error output. | |
152 | * | |
153 | * \param fmt printf() like format string. | |
154 | * \param arg arguments | |
155 | */ | |
5ad3d883 JP |
156 | #define DRM_ERROR(fmt, ...) \ |
157 | drm_err(__func__, fmt, ##__VA_ARGS__) | |
1da177e4 | 158 | |
5d13d425 RC |
159 | /** |
160 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. | |
161 | * | |
162 | * \param fmt printf() like format string. | |
163 | * \param arg arguments | |
164 | */ | |
165 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ | |
166 | ({ \ | |
167 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
168 | DEFAULT_RATELIMIT_INTERVAL, \ | |
169 | DEFAULT_RATELIMIT_BURST); \ | |
170 | \ | |
171 | if (__ratelimit(&_rs)) \ | |
172 | drm_err(__func__, fmt, ##__VA_ARGS__); \ | |
173 | }) | |
174 | ||
5ad3d883 JP |
175 | #define DRM_INFO(fmt, ...) \ |
176 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) | |
1da177e4 | 177 | |
48b8f631 JN |
178 | #define DRM_INFO_ONCE(fmt, ...) \ |
179 | printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) | |
180 | ||
1da177e4 LT |
181 | /** |
182 | * Debug output. | |
b5e89ed5 | 183 | * |
1da177e4 LT |
184 | * \param fmt printf() like format string. |
185 | * \param arg arguments | |
186 | */ | |
4fefcb27 | 187 | #define DRM_DEBUG(fmt, args...) \ |
1da177e4 | 188 | do { \ |
a73d4e91 | 189 | if (unlikely(drm_debug & DRM_UT_CORE)) \ |
1287aa90 | 190 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 191 | } while (0) |
192 | ||
8a4c47f3 | 193 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
4fefcb27 | 194 | do { \ |
a73d4e91 | 195 | if (unlikely(drm_debug & DRM_UT_DRIVER)) \ |
1287aa90 | 196 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 197 | } while (0) |
a73d4e91 | 198 | #define DRM_DEBUG_KMS(fmt, args...) \ |
4fefcb27 | 199 | do { \ |
a73d4e91 | 200 | if (unlikely(drm_debug & DRM_UT_KMS)) \ |
1287aa90 | 201 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 202 | } while (0) |
3248877e DA |
203 | #define DRM_DEBUG_PRIME(fmt, args...) \ |
204 | do { \ | |
a73d4e91 | 205 | if (unlikely(drm_debug & DRM_UT_PRIME)) \ |
1287aa90 | 206 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
1da177e4 | 207 | } while (0) |
1da177e4 | 208 | |
1da177e4 LT |
209 | /*@}*/ |
210 | ||
1da177e4 LT |
211 | /***********************************************************************/ |
212 | /** \name Internal types and structures */ | |
213 | /*@{*/ | |
214 | ||
1da177e4 | 215 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
1da177e4 | 216 | |
1da177e4 LT |
217 | /** |
218 | * Ioctl function type. | |
219 | * | |
220 | * \param inode device inode. | |
6c340eac | 221 | * \param file_priv DRM file private pointer. |
1da177e4 LT |
222 | * \param cmd command. |
223 | * \param arg argument. | |
224 | */ | |
c153f45f EA |
225 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
226 | struct drm_file *file_priv); | |
1da177e4 | 227 | |
9a186645 DA |
228 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
229 | unsigned long arg); | |
230 | ||
1a95916f KH |
231 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
232 | #define DRM_MAJOR 226 | |
233 | ||
a7a2cc31 DA |
234 | #define DRM_AUTH 0x1 |
235 | #define DRM_MASTER 0x2 | |
236 | #define DRM_ROOT_ONLY 0x4 | |
f453ba04 | 237 | #define DRM_CONTROL_ALLOW 0x8 |
ed8b6704 | 238 | #define DRM_UNLOCKED 0x10 |
1793126f | 239 | #define DRM_RENDER_ALLOW 0x20 |
a7a2cc31 | 240 | |
c153f45f EA |
241 | struct drm_ioctl_desc { |
242 | unsigned int cmd; | |
a7a2cc31 | 243 | int flags; |
c972d750 | 244 | drm_ioctl_t *func; |
1b2f1489 | 245 | unsigned int cmd_drv; |
b9434d0f | 246 | const char *name; |
c153f45f EA |
247 | }; |
248 | ||
249 | /** | |
250 | * Creates a driver or general drm_ioctl_desc array entry for the given | |
251 | * ioctl, for use by drm_ioctl(). | |
252 | */ | |
1b2f1489 DA |
253 | |
254 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ | |
b9434d0f | 255 | [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl} |
1da177e4 | 256 | |
c9a9c5e0 KH |
257 | /* Event queued up for userspace to read */ |
258 | struct drm_pending_event { | |
259 | struct drm_event *event; | |
260 | struct list_head link; | |
261 | struct drm_file *file_priv; | |
b9c2c9ae JB |
262 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
263 | we deliver the event, for tracing only */ | |
c9a9c5e0 KH |
264 | void (*destroy)(struct drm_pending_event *event); |
265 | }; | |
266 | ||
3248877e DA |
267 | /* initial implementaton using a linked list - todo hashtab */ |
268 | struct drm_prime_file_private { | |
269 | struct list_head head; | |
270 | struct mutex lock; | |
271 | }; | |
272 | ||
1da177e4 | 273 | /** File private data */ |
84b1fd10 | 274 | struct drm_file { |
39868bd7 | 275 | unsigned authenticated :1; |
c996fd0b TH |
276 | /* Whether we're master for a minor. Protected by master_mutex */ |
277 | unsigned is_master :1; | |
39868bd7 CW |
278 | /* true when the client has asked us to expose stereo 3D mode flags */ |
279 | unsigned stereo_allowed :1; | |
681e7ec7 MR |
280 | /* |
281 | * true if client understands CRTC primary planes and cursor planes | |
282 | * in the plane list | |
283 | */ | |
284 | unsigned universal_planes:1; | |
39868bd7 | 285 | |
5fce5e0b EB |
286 | struct pid *pid; |
287 | kuid_t uid; | |
b5e89ed5 | 288 | drm_magic_t magic; |
bd1b331f | 289 | struct list_head lhead; |
2c14f28b | 290 | struct drm_minor *minor; |
b5e89ed5 | 291 | unsigned long lock_count; |
7c1c2871 | 292 | |
673a394b EA |
293 | /** Mapping of mm object handles to object pointers. */ |
294 | struct idr object_idr; | |
295 | /** Lock for synchronization of access to object_idr. */ | |
296 | spinlock_t table_lock; | |
7c1c2871 | 297 | |
6c340eac | 298 | struct file *filp; |
8562b3f2 | 299 | void *driver_priv; |
7c1c2871 | 300 | |
7c1c2871 DA |
301 | struct drm_master *master; /* master this node is currently associated with |
302 | N.B. not always minor->master */ | |
4b096ac1 DV |
303 | /** |
304 | * fbs - List of framebuffers associated with this file. | |
305 | * | |
306 | * Protected by fbs_lock. Note that the fbs list holds a reference on | |
307 | * the fb object to prevent it from untimely disappearing. | |
308 | */ | |
f453ba04 | 309 | struct list_head fbs; |
4b096ac1 | 310 | struct mutex fbs_lock; |
c9a9c5e0 KH |
311 | |
312 | wait_queue_head_t event_wait; | |
313 | struct list_head event_list; | |
314 | int event_space; | |
3248877e DA |
315 | |
316 | struct drm_prime_file_private prime; | |
84b1fd10 | 317 | }; |
1da177e4 | 318 | |
1da177e4 LT |
319 | /** |
320 | * Lock data. | |
321 | */ | |
55910517 | 322 | struct drm_lock_data { |
c60ce623 | 323 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
8562b3f2 DA |
324 | /** Private of lock holder's file (NULL=kernel) */ |
325 | struct drm_file *file_priv; | |
1da177e4 | 326 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
b5e89ed5 | 327 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
040ac320 TH |
328 | spinlock_t spinlock; |
329 | uint32_t kernel_waiters; | |
330 | uint32_t user_waiters; | |
331 | int idle_has_lock; | |
55910517 | 332 | }; |
1da177e4 | 333 | |
c996fd0b TH |
334 | /** |
335 | * struct drm_master - drm master structure | |
336 | * | |
337 | * @refcount: Refcount for this master object. | |
338 | * @minor: Link back to minor char device we are master for. Immutable. | |
339 | * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. | |
340 | * @unique_len: Length of unique field. Protected by drm_global_mutex. | |
c996fd0b TH |
341 | * @magiclist: Hash of used authentication tokens. Protected by struct_mutex. |
342 | * @magicfree: List of used authentication tokens. Protected by struct_mutex. | |
343 | * @lock: DRI lock information. | |
344 | * @driver_priv: Pointer to driver-private information. | |
345 | */ | |
7c1c2871 | 346 | struct drm_master { |
c996fd0b TH |
347 | struct kref refcount; |
348 | struct drm_minor *minor; | |
349 | char *unique; | |
350 | int unique_len; | |
7c1c2871 DA |
351 | struct drm_open_hash magiclist; |
352 | struct list_head magicfree; | |
c996fd0b TH |
353 | struct drm_lock_data lock; |
354 | void *driver_priv; | |
7c1c2871 DA |
355 | }; |
356 | ||
27641c3f MK |
357 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
358 | * in initial implementation. | |
359 | */ | |
360 | #define DRM_VBLANKTIME_RBSIZE 2 | |
361 | ||
362 | /* Flags and return codes for get_vblank_timestamp() driver function. */ | |
363 | #define DRM_CALLED_FROM_VBLIRQ 1 | |
364 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) | |
3d3cbd84 | 365 | #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) |
27641c3f MK |
366 | |
367 | /* get_scanout_position() return flags */ | |
368 | #define DRM_SCANOUTPOS_VALID (1 << 0) | |
3d3cbd84 | 369 | #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) |
27641c3f MK |
370 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
371 | ||
1da177e4 LT |
372 | /** |
373 | * DRM driver structure. This structure represent the common code for | |
374 | * a family of cards. There will one drm_device for each card present | |
375 | * in this family | |
376 | */ | |
1da177e4 | 377 | struct drm_driver { |
22eae947 DA |
378 | int (*load) (struct drm_device *, unsigned long flags); |
379 | int (*firstopen) (struct drm_device *); | |
84b1fd10 | 380 | int (*open) (struct drm_device *, struct drm_file *); |
6c340eac | 381 | void (*preclose) (struct drm_device *, struct drm_file *file_priv); |
84b1fd10 | 382 | void (*postclose) (struct drm_device *, struct drm_file *); |
22eae947 DA |
383 | void (*lastclose) (struct drm_device *); |
384 | int (*unload) (struct drm_device *); | |
b932ccb5 | 385 | int (*suspend) (struct drm_device *, pm_message_t state); |
e8b962b6 | 386 | int (*resume) (struct drm_device *); |
c153f45f | 387 | int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); |
b5e89ed5 | 388 | int (*dma_quiescent) (struct drm_device *); |
84b1fd10 | 389 | int (*context_dtor) (struct drm_device *dev, int context); |
915b4d11 | 390 | int (*set_busid)(struct drm_device *dev, struct drm_master *master); |
b5e89ed5 | 391 | |
0a3e67a4 JB |
392 | /** |
393 | * get_vblank_counter - get raw hardware vblank counter | |
394 | * @dev: DRM device | |
395 | * @crtc: counter to fetch | |
396 | * | |
3b02ab88 LP |
397 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
398 | * If a device doesn't have a hardware counter, the driver can simply | |
399 | * return the value of drm_vblank_count. The DRM core will account for | |
400 | * missed vblank events while interrupts where disabled based on system | |
401 | * timestamps. | |
0a3e67a4 JB |
402 | * |
403 | * Wraparound handling and loss of events due to modesetting is dealt | |
404 | * with in the DRM core code. | |
405 | * | |
406 | * RETURNS | |
407 | * Raw vblank counter value. | |
408 | */ | |
409 | u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); | |
410 | ||
411 | /** | |
412 | * enable_vblank - enable vblank interrupt events | |
413 | * @dev: DRM device | |
414 | * @crtc: which irq to enable | |
415 | * | |
416 | * Enable vblank interrupts for @crtc. If the device doesn't have | |
417 | * a hardware vblank counter, this routine should be a no-op, since | |
418 | * interrupts will have to stay on to keep the count accurate. | |
419 | * | |
420 | * RETURNS | |
421 | * Zero on success, appropriate errno if the given @crtc's vblank | |
422 | * interrupt cannot be enabled. | |
423 | */ | |
424 | int (*enable_vblank) (struct drm_device *dev, int crtc); | |
425 | ||
426 | /** | |
427 | * disable_vblank - disable vblank interrupt events | |
428 | * @dev: DRM device | |
429 | * @crtc: which irq to enable | |
430 | * | |
431 | * Disable vblank interrupts for @crtc. If the device doesn't have | |
432 | * a hardware vblank counter, this routine should be a no-op, since | |
433 | * interrupts will have to stay on to keep the count accurate. | |
434 | */ | |
435 | void (*disable_vblank) (struct drm_device *dev, int crtc); | |
436 | ||
cda17380 DA |
437 | /** |
438 | * Called by \c drm_device_is_agp. Typically used to determine if a | |
439 | * card is really attached to AGP or not. | |
440 | * | |
441 | * \param dev DRM device handle | |
442 | * | |
443 | * \returns | |
444 | * One of three values is returned depending on whether or not the | |
445 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP | |
446 | * (return of 1), or may or may not be AGP (return of 2). | |
447 | */ | |
84b1fd10 | 448 | int (*device_is_agp) (struct drm_device *dev); |
cda17380 | 449 | |
27641c3f MK |
450 | /** |
451 | * Called by vblank timestamping code. | |
452 | * | |
8f6fce03 MK |
453 | * Return the current display scanout position from a crtc, and an |
454 | * optional accurate ktime_get timestamp of when position was measured. | |
27641c3f MK |
455 | * |
456 | * \param dev DRM device. | |
457 | * \param crtc Id of the crtc to query. | |
abca9e45 | 458 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
27641c3f MK |
459 | * \param *vpos Target location for current vertical scanout position. |
460 | * \param *hpos Target location for current horizontal scanout position. | |
8f6fce03 MK |
461 | * \param *stime Target location for timestamp taken immediately before |
462 | * scanout position query. Can be NULL to skip timestamp. | |
463 | * \param *etime Target location for timestamp taken immediately after | |
464 | * scanout position query. Can be NULL to skip timestamp. | |
27641c3f MK |
465 | * |
466 | * Returns vpos as a positive number while in active scanout area. | |
467 | * Returns vpos as a negative number inside vblank, counting the number | |
468 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline | |
469 | * until start of active scanout / end of vblank." | |
470 | * | |
471 | * \return Flags, or'ed together as follows: | |
472 | * | |
25985edc | 473 | * DRM_SCANOUTPOS_VALID = Query successful. |
27641c3f MK |
474 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
475 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of | |
476 | * this flag means that returned position may be offset by a constant | |
477 | * but unknown small number of scanlines wrt. real scanout position. | |
478 | * | |
479 | */ | |
480 | int (*get_scanout_position) (struct drm_device *dev, int crtc, | |
abca9e45 | 481 | unsigned int flags, |
8f6fce03 MK |
482 | int *vpos, int *hpos, ktime_t *stime, |
483 | ktime_t *etime); | |
27641c3f MK |
484 | |
485 | /** | |
486 | * Called by \c drm_get_last_vbltimestamp. Should return a precise | |
487 | * timestamp when the most recent VBLANK interval ended or will end. | |
488 | * | |
489 | * Specifically, the timestamp in @vblank_time should correspond as | |
490 | * closely as possible to the time when the first video scanline of | |
491 | * the video frame after the end of VBLANK will start scanning out, | |
42b2aa86 | 492 | * the time immediately after end of the VBLANK interval. If the |
27641c3f MK |
493 | * @crtc is currently inside VBLANK, this will be a time in the future. |
494 | * If the @crtc is currently scanning out a frame, this will be the | |
495 | * past start time of the current scanout. This is meant to adhere | |
496 | * to the OpenML OML_sync_control extension specification. | |
497 | * | |
498 | * \param dev dev DRM device handle. | |
499 | * \param crtc crtc for which timestamp should be returned. | |
500 | * \param *max_error Maximum allowable timestamp error in nanoseconds. | |
501 | * Implementation should strive to provide timestamp | |
502 | * with an error of at most *max_error nanoseconds. | |
503 | * Returns true upper bound on error for timestamp. | |
504 | * \param *vblank_time Target location for returned vblank timestamp. | |
505 | * \param flags 0 = Defaults, no special treatment needed. | |
506 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank | |
507 | * irq handler. Some drivers need to apply some workarounds | |
508 | * for gpu-specific vblank irq quirks if flag is set. | |
509 | * | |
510 | * \returns | |
511 | * Zero if timestamping isn't supported in current display mode or a | |
512 | * negative number on failure. A positive status code on success, | |
513 | * which describes how the vblank_time timestamp was computed. | |
514 | */ | |
515 | int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, | |
516 | int *max_error, | |
517 | struct timeval *vblank_time, | |
518 | unsigned flags); | |
519 | ||
1da177e4 | 520 | /* these have to be filled in */ |
b5e89ed5 | 521 | |
e9f0d76f | 522 | irqreturn_t(*irq_handler) (int irq, void *arg); |
84b1fd10 | 523 | void (*irq_preinstall) (struct drm_device *dev); |
0a3e67a4 | 524 | int (*irq_postinstall) (struct drm_device *dev); |
84b1fd10 | 525 | void (*irq_uninstall) (struct drm_device *dev); |
22eae947 | 526 | |
7c1c2871 DA |
527 | /* Master routines */ |
528 | int (*master_create)(struct drm_device *dev, struct drm_master *master); | |
529 | void (*master_destroy)(struct drm_device *dev, struct drm_master *master); | |
862302ff TH |
530 | /** |
531 | * master_set is called whenever the minor master is set. | |
532 | * master_drop is called whenever the minor master is dropped. | |
533 | */ | |
534 | ||
535 | int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, | |
536 | bool from_open); | |
537 | void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, | |
538 | bool from_release); | |
7c1c2871 | 539 | |
955b12de BG |
540 | int (*debugfs_init)(struct drm_minor *minor); |
541 | void (*debugfs_cleanup)(struct drm_minor *minor); | |
673a394b EA |
542 | |
543 | /** | |
544 | * Driver-specific constructor for drm_gem_objects, to set up | |
545 | * obj->driver_private. | |
546 | * | |
547 | * Returns 0 on success. | |
548 | */ | |
673a394b | 549 | void (*gem_free_object) (struct drm_gem_object *obj); |
304eda32 BS |
550 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
551 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); | |
673a394b | 552 | |
3248877e DA |
553 | /* prime: */ |
554 | /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ | |
555 | int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, | |
556 | uint32_t handle, uint32_t flags, int *prime_fd); | |
557 | /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ | |
558 | int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, | |
559 | int prime_fd, uint32_t *handle); | |
560 | /* export GEM -> dmabuf */ | |
561 | struct dma_buf * (*gem_prime_export)(struct drm_device *dev, | |
562 | struct drm_gem_object *obj, int flags); | |
563 | /* import dmabuf -> GEM */ | |
564 | struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, | |
565 | struct dma_buf *dma_buf); | |
89177644 AP |
566 | /* low-level interface used by drm_gem_prime_{import,export} */ |
567 | int (*gem_prime_pin)(struct drm_gem_object *obj); | |
102d6dba | 568 | void (*gem_prime_unpin)(struct drm_gem_object *obj); |
3aac4502 ML |
569 | struct reservation_object * (*gem_prime_res_obj)( |
570 | struct drm_gem_object *obj); | |
89177644 AP |
571 | struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); |
572 | struct drm_gem_object *(*gem_prime_import_sg_table)( | |
573 | struct drm_device *dev, size_t size, | |
574 | struct sg_table *sgt); | |
575 | void *(*gem_prime_vmap)(struct drm_gem_object *obj); | |
576 | void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); | |
7c397cd9 JS |
577 | int (*gem_prime_mmap)(struct drm_gem_object *obj, |
578 | struct vm_area_struct *vma); | |
3248877e | 579 | |
28d52043 DA |
580 | /* vga arb irq handler */ |
581 | void (*vgaarb_irq)(struct drm_device *dev, bool state); | |
582 | ||
ff72145b DA |
583 | /* dumb alloc support */ |
584 | int (*dumb_create)(struct drm_file *file_priv, | |
585 | struct drm_device *dev, | |
586 | struct drm_mode_create_dumb *args); | |
587 | int (*dumb_map_offset)(struct drm_file *file_priv, | |
588 | struct drm_device *dev, uint32_t handle, | |
589 | uint64_t *offset); | |
590 | int (*dumb_destroy)(struct drm_file *file_priv, | |
591 | struct drm_device *dev, | |
592 | uint32_t handle); | |
593 | ||
a2c0a97b | 594 | /* Driver private ops for this object */ |
78b68556 | 595 | const struct vm_operations_struct *gem_vm_ops; |
a2c0a97b | 596 | |
22eae947 DA |
597 | int major; |
598 | int minor; | |
599 | int patchlevel; | |
600 | char *name; | |
601 | char *desc; | |
602 | char *date; | |
603 | ||
1da177e4 LT |
604 | u32 driver_features; |
605 | int dev_priv_size; | |
baa70943 | 606 | const struct drm_ioctl_desc *ioctls; |
1da177e4 | 607 | int num_ioctls; |
e08e96de | 608 | const struct file_operations *fops; |
8410ea3b | 609 | |
b3f2333d DV |
610 | /* List of devices hanging off this driver with stealth attach. */ |
611 | struct list_head legacy_dev_list; | |
1da177e4 LT |
612 | }; |
613 | ||
cb8a239b DH |
614 | enum drm_minor_type { |
615 | DRM_MINOR_LEGACY, | |
616 | DRM_MINOR_CONTROL, | |
617 | DRM_MINOR_RENDER, | |
618 | DRM_MINOR_CNT, | |
619 | }; | |
2c14f28b | 620 | |
955b12de BG |
621 | /** |
622 | * Info file list entry. This structure represents a debugfs or proc file to | |
623 | * be created by the drm core | |
624 | */ | |
625 | struct drm_info_list { | |
626 | const char *name; /** file name */ | |
627 | int (*show)(struct seq_file*, void*); /** show callback */ | |
628 | u32 driver_features; /**< Required driver features for this entry */ | |
629 | void *data; | |
630 | }; | |
631 | ||
632 | /** | |
633 | * debugfs node structure. This structure represents a debugfs file. | |
634 | */ | |
635 | struct drm_info_node { | |
636 | struct list_head list; | |
637 | struct drm_minor *minor; | |
ce089b54 | 638 | const struct drm_info_list *info_ent; |
955b12de BG |
639 | struct dentry *dent; |
640 | }; | |
641 | ||
1da177e4 | 642 | /** |
2c14f28b | 643 | * DRM minor structure. This structure represents a drm minor number. |
1da177e4 | 644 | */ |
2c14f28b DA |
645 | struct drm_minor { |
646 | int index; /**< Minor device number */ | |
647 | int type; /**< Control or render */ | |
5bdebb18 | 648 | struct device *kdev; /**< Linux device */ |
1da177e4 | 649 | struct drm_device *dev; |
955b12de | 650 | |
955b12de | 651 | struct dentry *debugfs_root; |
b3e067c0 MS |
652 | |
653 | struct list_head debugfs_list; | |
654 | struct mutex debugfs_lock; /* Protects debugfs_list. */ | |
955b12de | 655 | |
c996fd0b TH |
656 | /* currently active master for this node. Protected by master_mutex */ |
657 | struct drm_master *master; | |
f453ba04 | 658 | struct drm_mode_group mode_group; |
84b1fd10 | 659 | }; |
1da177e4 | 660 | |
1794d257 | 661 | |
c9a9c5e0 KH |
662 | struct drm_pending_vblank_event { |
663 | struct drm_pending_event base; | |
664 | int pipe; | |
665 | struct drm_event_vblank event; | |
666 | }; | |
667 | ||
5380e929 | 668 | struct drm_vblank_crtc { |
e69595c2 | 669 | struct drm_device *dev; /* pointer to the drm_device */ |
5380e929 VS |
670 | wait_queue_head_t queue; /**< VBLANK wait queue */ |
671 | struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ | |
e69595c2 | 672 | struct timer_list disable_timer; /* delayed disable timer */ |
5380e929 VS |
673 | atomic_t count; /**< number of VBLANK interrupts */ |
674 | atomic_t refcount; /* number of users of vblank interruptsper crtc */ | |
675 | u32 last; /* protected by dev->vbl_lock, used */ | |
676 | /* for wraparound handling */ | |
677 | u32 last_wait; /* Last vblank seqno waited per CRTC */ | |
678 | unsigned int inmodeset; /* Display driver is setting mode */ | |
e69595c2 | 679 | int crtc; /* crtc index */ |
5380e929 VS |
680 | bool enabled; /* so we don't call enable more than |
681 | once per disable */ | |
682 | }; | |
683 | ||
1da177e4 LT |
684 | /** |
685 | * DRM device structure. This structure represent a complete card that | |
686 | * may contain multiple heads. | |
687 | */ | |
84b1fd10 | 688 | struct drm_device { |
b3f2333d | 689 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
b5e89ed5 | 690 | int if_version; /**< Highest interface version set */ |
1da177e4 | 691 | |
45e212d2 DH |
692 | /** \name Lifetime Management */ |
693 | /*@{ */ | |
099d1c29 | 694 | struct kref ref; /**< Object ref-count */ |
45e212d2 DH |
695 | struct device *dev; /**< Device structure of bus-device */ |
696 | struct drm_driver *driver; /**< DRM driver managing the device */ | |
697 | void *dev_private; /**< DRM driver private data */ | |
45e212d2 DH |
698 | struct drm_minor *control; /**< Control node */ |
699 | struct drm_minor *primary; /**< Primary node */ | |
700 | struct drm_minor *render; /**< Render node */ | |
701 | atomic_t unplugged; /**< Flag whether dev is dead */ | |
07b48c3a | 702 | struct inode *anon_inode; /**< inode for private address-space */ |
ca8e2ad7 | 703 | char *unique; /**< unique name of the device */ |
45e212d2 DH |
704 | /*@} */ |
705 | ||
1da177e4 | 706 | /** \name Locks */ |
b5e89ed5 | 707 | /*@{ */ |
30e2fb18 | 708 | struct mutex struct_mutex; /**< For others */ |
c996fd0b | 709 | struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
b5e89ed5 | 710 | /*@} */ |
1da177e4 LT |
711 | |
712 | /** \name Usage Counters */ | |
b5e89ed5 | 713 | /*@{ */ |
fc8fd40e | 714 | int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
2177a218 | 715 | spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
b5e89ed5 DA |
716 | int buf_use; /**< Buffers in use -- cannot alloc */ |
717 | atomic_t buf_alloc; /**< Buffer allocation in progress */ | |
718 | /*@} */ | |
1da177e4 | 719 | |
bd1b331f | 720 | struct list_head filelist; |
1da177e4 LT |
721 | |
722 | /** \name Memory management */ | |
b5e89ed5 | 723 | /*@{ */ |
bd1b331f | 724 | struct list_head maplist; /**< Linked list of regions */ |
e0be428e | 725 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
1da177e4 LT |
726 | |
727 | /** \name Context handle management */ | |
b5e89ed5 | 728 | /*@{ */ |
bd1b331f | 729 | struct list_head ctxlist; /**< Linked list of context handles */ |
30e2fb18 | 730 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1da177e4 | 731 | |
62968144 | 732 | struct idr ctx_idr; |
1da177e4 | 733 | |
bd1b331f | 734 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
f453ba04 | 735 | |
b5e89ed5 | 736 | /*@} */ |
1da177e4 | 737 | |
a344a7e7 | 738 | /** \name DMA support */ |
b5e89ed5 | 739 | /*@{ */ |
cdd55a29 | 740 | struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
b5e89ed5 | 741 | /*@} */ |
1da177e4 LT |
742 | |
743 | /** \name Context support */ | |
b5e89ed5 | 744 | /*@{ */ |
4423843c | 745 | bool irq_enabled; /**< True if irq handler is enabled */ |
7c1a38e3 DV |
746 | int irq; |
747 | ||
1da177e4 | 748 | __volatile__ long context_flag; /**< Context swapping flag */ |
b5e89ed5 | 749 | int last_context; /**< Last current context */ |
b5e89ed5 DA |
750 | /*@} */ |
751 | ||
1da177e4 | 752 | /** \name VBLANK IRQ support */ |
b5e89ed5 DA |
753 | /*@{ */ |
754 | ||
0a3e67a4 JB |
755 | /* |
756 | * At load time, disabling the vblank interrupt won't be allowed since | |
757 | * old clients may not call the modeset ioctl and therefore misbehave. | |
758 | * Once the modeset ioctl *has* been called though, we can safely | |
759 | * disable them when unused. | |
760 | */ | |
ba0bf120 | 761 | bool vblank_disable_allowed; |
0a3e67a4 | 762 | |
00185e66 VS |
763 | /* |
764 | * If true, vblank interrupt will be disabled immediately when the | |
765 | * refcount drops to zero, as opposed to via the vblank disable | |
766 | * timer. | |
767 | * This can be set to true it the hardware has a working vblank | |
768 | * counter and the driver uses drm_vblank_on() and drm_vblank_off() | |
769 | * appropriately. | |
770 | */ | |
771 | bool vblank_disable_immediate; | |
772 | ||
5380e929 VS |
773 | /* array of size num_crtcs */ |
774 | struct drm_vblank_crtc *vblank; | |
0a3e67a4 | 775 | |
27641c3f | 776 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
b5e89ed5 | 777 | spinlock_t vbl_lock; |
0a3e67a4 JB |
778 | |
779 | u32 max_vblank_count; /**< size of vblank counter register */ | |
b5e89ed5 | 780 | |
c9a9c5e0 KH |
781 | /** |
782 | * List of events | |
783 | */ | |
784 | struct list_head vblank_event_list; | |
785 | spinlock_t event_lock; | |
786 | ||
b5e89ed5 | 787 | /*@} */ |
b5e89ed5 | 788 | |
55910517 | 789 | struct drm_agp_head *agp; /**< AGP data */ |
1da177e4 | 790 | |
b5e89ed5 | 791 | struct pci_dev *pdev; /**< PCI device structure */ |
1da177e4 | 792 | #ifdef __alpha__ |
1da177e4 | 793 | struct pci_controller *hose; |
1da177e4 | 794 | #endif |
dcdb1674 JC |
795 | |
796 | struct platform_device *platformdev; /**< Platform device struture */ | |
797 | ||
55910517 | 798 | struct drm_sg_mem *sg; /**< Scatter gather memory */ |
19227561 | 799 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
b5e89ed5 DA |
800 | sigset_t sigmask; |
801 | ||
69d516c0 DH |
802 | struct { |
803 | int context; | |
804 | struct drm_hw_lock *lock; | |
805 | } sigdata; | |
806 | ||
f77d390c | 807 | struct drm_local_map *agp_buffer_map; |
d1f2b55a | 808 | unsigned int agp_buffer_token; |
bea5679f | 809 | |
f453ba04 DA |
810 | struct drm_mode_config mode_config; /**< Current mode config */ |
811 | ||
673a394b EA |
812 | /** \name GEM information */ |
813 | /*@{ */ | |
cd4f013f | 814 | struct mutex object_name_lock; |
673a394b | 815 | struct idr object_name_idr; |
b04a5906 | 816 | struct drm_vma_offset_manager *vma_offset_manager; |
673a394b | 817 | /*@} */ |
5bcf719b | 818 | int switch_power_state; |
84b1fd10 | 819 | }; |
1da177e4 | 820 | |
5bcf719b DA |
821 | #define DRM_SWITCH_POWER_ON 0 |
822 | #define DRM_SWITCH_POWER_OFF 1 | |
823 | #define DRM_SWITCH_POWER_CHANGING 2 | |
13bb9cc8 | 824 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
5bcf719b | 825 | |
b5e89ed5 DA |
826 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
827 | int feature) | |
1da177e4 LT |
828 | { |
829 | return ((dev->driver->driver_features & feature) ? 1 : 0); | |
830 | } | |
831 | ||
2c07a21d DA |
832 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
833 | { | |
834 | smp_wmb(); | |
835 | atomic_set(&dev->unplugged, 1); | |
836 | } | |
837 | ||
838 | static inline int drm_device_is_unplugged(struct drm_device *dev) | |
839 | { | |
840 | int ret = atomic_read(&dev->unplugged); | |
841 | smp_rmb(); | |
842 | return ret; | |
843 | } | |
844 | ||
43683057 | 845 | static inline bool drm_is_render_client(const struct drm_file *file_priv) |
1793126f DH |
846 | { |
847 | return file_priv->minor->type == DRM_MINOR_RENDER; | |
848 | } | |
849 | ||
ac05dbc5 TH |
850 | static inline bool drm_is_control_client(const struct drm_file *file_priv) |
851 | { | |
852 | return file_priv->minor->type == DRM_MINOR_CONTROL; | |
853 | } | |
854 | ||
43683057 TH |
855 | static inline bool drm_is_primary_client(const struct drm_file *file_priv) |
856 | { | |
857 | return file_priv->minor->type == DRM_MINOR_LEGACY; | |
858 | } | |
859 | ||
1da177e4 LT |
860 | /******************************************************************/ |
861 | /** \name Internal function definitions */ | |
862 | /*@{*/ | |
863 | ||
1da177e4 | 864 | /* Driver support (drm_drv.h) */ |
ed8b6704 AB |
865 | extern long drm_ioctl(struct file *filp, |
866 | unsigned int cmd, unsigned long arg); | |
b5e89ed5 DA |
867 | extern long drm_compat_ioctl(struct file *filp, |
868 | unsigned int cmd, unsigned long arg); | |
4beb6d9f | 869 | extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); |
1da177e4 LT |
870 | |
871 | /* Device support (drm_fops.h) */ | |
b5e89ed5 | 872 | extern int drm_open(struct inode *inode, struct file *filp); |
c9a9c5e0 KH |
873 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
874 | size_t count, loff_t *offset); | |
b5e89ed5 | 875 | extern int drm_release(struct inode *inode, struct file *filp); |
1da177e4 LT |
876 | |
877 | /* Mapping support (drm_vm.h) */ | |
b5e89ed5 | 878 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
1da177e4 | 879 | |
78238757 DV |
880 | /* Misc. IOCTL support (drm_ioctl.c) */ |
881 | int drm_noop(struct drm_device *dev, void *data, | |
882 | struct drm_file *file_priv); | |
1da177e4 | 883 | |
673a394b EA |
884 | /* Cache management (drm_cache.c) */ |
885 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); | |
9da3da66 | 886 | void drm_clflush_sg(struct sg_table *st); |
c2d15359 | 887 | void drm_clflush_virt_range(void *addr, unsigned long length); |
673a394b | 888 | |
040ac320 TH |
889 | /* |
890 | * These are exported to drivers so that they can implement fencing using | |
891 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. | |
892 | */ | |
893 | ||
1da177e4 | 894 | /* IRQ support (drm_irq.h) */ |
bb0f1b5c | 895 | extern int drm_irq_install(struct drm_device *dev, int irq); |
84b1fd10 | 896 | extern int drm_irq_uninstall(struct drm_device *dev); |
b5e89ed5 | 897 | |
0a3e67a4 | 898 | extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); |
af6061af | 899 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
0a3e67a4 | 900 | struct drm_file *filp); |
0a3e67a4 | 901 | extern u32 drm_vblank_count(struct drm_device *dev, int crtc); |
27641c3f MK |
902 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, |
903 | struct timeval *vblanktime); | |
c6eefa17 RC |
904 | extern void drm_send_vblank_event(struct drm_device *dev, int crtc, |
905 | struct drm_pending_vblank_event *e); | |
78c6e170 | 906 | extern bool drm_handle_vblank(struct drm_device *dev, int crtc); |
0a3e67a4 JB |
907 | extern int drm_vblank_get(struct drm_device *dev, int crtc); |
908 | extern void drm_vblank_put(struct drm_device *dev, int crtc); | |
89dd6a4b DV |
909 | extern int drm_crtc_vblank_get(struct drm_crtc *crtc); |
910 | extern void drm_crtc_vblank_put(struct drm_crtc *crtc); | |
e8450f51 DV |
911 | extern void drm_wait_one_vblank(struct drm_device *dev, int crtc); |
912 | extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); | |
778c9026 | 913 | extern void drm_vblank_off(struct drm_device *dev, int crtc); |
f2752282 | 914 | extern void drm_vblank_on(struct drm_device *dev, int crtc); |
89dd6a4b DV |
915 | extern void drm_crtc_vblank_off(struct drm_crtc *crtc); |
916 | extern void drm_crtc_vblank_on(struct drm_crtc *crtc); | |
52440211 | 917 | extern void drm_vblank_cleanup(struct drm_device *dev); |
89dd6a4b | 918 | |
27641c3f MK |
919 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
920 | int crtc, int *max_error, | |
921 | struct timeval *vblank_time, | |
922 | unsigned flags, | |
7da903ef VS |
923 | const struct drm_crtc *refcrtc, |
924 | const struct drm_display_mode *mode); | |
545cdd55 VS |
925 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, |
926 | const struct drm_display_mode *mode); | |
27641c3f | 927 | |
020178a1 VS |
928 | /** |
929 | * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC | |
930 | * @crtc: which CRTC's vblank waitqueue to retrieve | |
931 | * | |
932 | * This function returns a pointer to the vblank waitqueue for the CRTC. | |
933 | * Drivers can use this to implement vblank waits using wait_event() & co. | |
934 | */ | |
935 | static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) | |
936 | { | |
937 | return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; | |
938 | } | |
ebc64e45 | 939 | |
0a3e67a4 | 940 | /* Modesetting support */ |
f453ba04 DA |
941 | extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); |
942 | extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); | |
1da177e4 | 943 | |
1da177e4 | 944 | /* Stub support (drm_stub.h) */ |
7c1c2871 DA |
945 | extern struct drm_master *drm_master_get(struct drm_master *master); |
946 | extern void drm_master_put(struct drm_master **master); | |
8410ea3b | 947 | |
112b715e | 948 | extern void drm_put_dev(struct drm_device *dev); |
2c07a21d | 949 | extern void drm_unplug_dev(struct drm_device *dev); |
b5e89ed5 | 950 | extern unsigned int drm_debug; |
2c14f28b | 951 | |
955b12de BG |
952 | /* Debugfs support */ |
953 | #if defined(CONFIG_DEBUG_FS) | |
7d74795b LD |
954 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
955 | int count, struct dentry *root, | |
956 | struct drm_minor *minor); | |
957 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, | |
958 | int count, struct drm_minor *minor); | |
66ee52e2 | 959 | #else |
66ee52e2 TR |
960 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
961 | int count, struct dentry *root, | |
962 | struct drm_minor *minor) | |
963 | { | |
964 | return 0; | |
965 | } | |
966 | ||
967 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, | |
968 | int count, struct drm_minor *minor) | |
969 | { | |
970 | return 0; | |
971 | } | |
955b12de BG |
972 | #endif |
973 | ||
89177644 AP |
974 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
975 | struct drm_gem_object *obj, int flags); | |
3248877e DA |
976 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
977 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, | |
978 | int *prime_fd); | |
89177644 AP |
979 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
980 | struct dma_buf *dma_buf); | |
3248877e DA |
981 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
982 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); | |
c1d6798d | 983 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
3248877e | 984 | |
51ab7ba2 DA |
985 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
986 | dma_addr_t *addrs, int max_pages); | |
3248877e DA |
987 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages); |
988 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); | |
989 | ||
1da177e4 | 990 | |
ba8286fa DV |
991 | extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, |
992 | size_t align); | |
993 | extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); | |
1da177e4 LT |
994 | |
995 | /* sysfs support (drm_sysfs.c) */ | |
f453ba04 | 996 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
1da177e4 | 997 | |
673a394b | 998 | |
1bb72532 DH |
999 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
1000 | struct device *parent); | |
099d1c29 DH |
1001 | void drm_dev_ref(struct drm_device *dev); |
1002 | void drm_dev_unref(struct drm_device *dev); | |
c22f0ace | 1003 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
c3a49737 | 1004 | void drm_dev_unregister(struct drm_device *dev); |
ca8e2ad7 | 1005 | int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...); |
1616c525 DH |
1006 | |
1007 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); | |
1008 | void drm_minor_release(struct drm_minor *minor); | |
1009 | ||
8410ea3b DA |
1010 | /*@}*/ |
1011 | ||
1012 | /* PCI section */ | |
1013 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) | |
1014 | { | |
b5e89ed5 DA |
1015 | if (dev->driver->device_is_agp != NULL) { |
1016 | int err = (*dev->driver->device_is_agp) (dev); | |
1017 | ||
cda17380 DA |
1018 | if (err != 2) { |
1019 | return err; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); | |
1024 | } | |
4efafebe | 1025 | void drm_pci_agp_destroy(struct drm_device *dev); |
cda17380 | 1026 | |
8410ea3b DA |
1027 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
1028 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); | |
1029 | extern int drm_get_pci_dev(struct pci_dev *pdev, | |
dcdb1674 JC |
1030 | const struct pci_device_id *ent, |
1031 | struct drm_driver *driver); | |
915b4d11 | 1032 | extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); |
8410ea3b | 1033 | |
f4297784 DA |
1034 | #define DRM_PCIE_SPEED_25 1 |
1035 | #define DRM_PCIE_SPEED_50 2 | |
1036 | #define DRM_PCIE_SPEED_80 4 | |
1037 | ||
1038 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); | |
8410ea3b DA |
1039 | |
1040 | /* platform section */ | |
1041 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); | |
915b4d11 | 1042 | extern int drm_platform_set_busid(struct drm_device *d, struct drm_master *m); |
8410ea3b | 1043 | |
cc1f7194 DA |
1044 | /* returns true if currently okay to sleep */ |
1045 | static __inline__ bool drm_can_sleep(void) | |
1046 | { | |
1047 | if (in_atomic() || in_dbg_master() || irqs_disabled()) | |
1048 | return false; | |
1049 | return true; | |
1050 | } | |
1051 | ||
1da177e4 | 1052 | #endif |