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Commit | Line | Data |
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1da177e4 | 1 | /** |
b5e89ed5 | 2 | * \file drmP.h |
1da177e4 | 3 | * Private header for Direct Rendering Manager |
b5e89ed5 | 4 | * |
1da177e4 LT |
5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
6 | * \author Gareth Hughes <gareth@valinux.com> | |
7 | */ | |
8 | ||
9 | /* | |
10 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. | |
11 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
dcdb1674 | 12 | * Copyright (c) 2009-2010, Code Aurora Forum. |
1da177e4 LT |
13 | * All rights reserved. |
14 | * | |
15 | * Permission is hereby granted, free of charge, to any person obtaining a | |
16 | * copy of this software and associated documentation files (the "Software"), | |
17 | * to deal in the Software without restriction, including without limitation | |
18 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
19 | * and/or sell copies of the Software, and to permit persons to whom the | |
20 | * Software is furnished to do so, subject to the following conditions: | |
21 | * | |
22 | * The above copyright notice and this permission notice (including the next | |
23 | * paragraph) shall be included in all copies or substantial portions of the | |
24 | * Software. | |
25 | * | |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
27 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
28 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
29 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
30 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
31 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
32 | * OTHER DEALINGS IN THE SOFTWARE. | |
33 | */ | |
34 | ||
35 | #ifndef _DRM_P_H_ | |
36 | #define _DRM_P_H_ | |
37 | ||
1da177e4 LT |
38 | #ifdef __KERNEL__ |
39 | #ifdef __alpha__ | |
40 | /* add include of current.h so that "current" is defined | |
41 | * before static inline funcs in wait.h. Doing this so we | |
42 | * can build the DRM (part of PI DRI). 4/21/2000 S + B */ | |
43 | #include <asm/current.h> | |
b5e89ed5 | 44 | #endif /* __alpha__ */ |
1da177e4 | 45 | #include <linux/kernel.h> |
099d1c29 | 46 | #include <linux/kref.h> |
1da177e4 LT |
47 | #include <linux/miscdevice.h> |
48 | #include <linux/fs.h> | |
1da177e4 LT |
49 | #include <linux/init.h> |
50 | #include <linux/file.h> | |
dcdb1674 | 51 | #include <linux/platform_device.h> |
1da177e4 | 52 | #include <linux/pci.h> |
1da177e4 | 53 | #include <linux/jiffies.h> |
b05c2385 | 54 | #include <linux/dma-mapping.h> |
1da177e4 LT |
55 | #include <linux/mm.h> |
56 | #include <linux/cdev.h> | |
30e2fb18 | 57 | #include <linux/mutex.h> |
03dae7c5 | 58 | #include <linux/io.h> |
5a0e3ad6 | 59 | #include <linux/slab.h> |
5d13d425 | 60 | #include <linux/ratelimit.h> |
1da177e4 | 61 | #if defined(__alpha__) || defined(__powerpc__) |
b5e89ed5 | 62 | #include <asm/pgtable.h> /* For pte_wrprotect */ |
1da177e4 | 63 | #endif |
1da177e4 LT |
64 | #include <asm/mman.h> |
65 | #include <asm/uaccess.h> | |
1da177e4 LT |
66 | #include <linux/types.h> |
67 | #include <linux/agp_backend.h> | |
1da177e4 LT |
68 | #include <linux/workqueue.h> |
69 | #include <linux/poll.h> | |
70 | #include <asm/pgalloc.h> | |
19218e48 DH |
71 | #include <drm/drm.h> |
72 | #include <drm/drm_sarea.h> | |
0de23977 | 73 | #include <drm/drm_vma_manager.h> |
1da177e4 | 74 | |
62968144 DA |
75 | #include <linux/idr.h> |
76 | ||
1da177e4 | 77 | #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) |
1da177e4 | 78 | |
de477254 PG |
79 | struct module; |
80 | ||
c153f45f EA |
81 | struct drm_file; |
82 | struct drm_device; | |
83 | ||
edb37a95 | 84 | struct device_node; |
ebc64e45 ST |
85 | struct videomode; |
86 | ||
a1ce3928 DH |
87 | #include <drm/drm_os_linux.h> |
88 | #include <drm/drm_hashtab.h> | |
89 | #include <drm/drm_mm.h> | |
1da177e4 | 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) | |
5ad3d883 JP |
128 | int drm_err(const char *func, const char *format, ...); |
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 DA |
145 | |
146 | #define DRIVER_BUS_PCI 0x1 | |
147 | #define DRIVER_BUS_PLATFORM 0x2 | |
148 | #define DRIVER_BUS_USB 0x3 | |
776dc384 | 149 | #define DRIVER_BUS_HOST1X 0x4 |
1da177e4 LT |
150 | |
151 | /***********************************************************************/ | |
152 | /** \name Begin the DRM... */ | |
153 | /*@{*/ | |
154 | ||
155 | #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then | |
156 | also include looping detection. */ | |
157 | ||
8669cbc5 | 158 | #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ |
1da177e4 LT |
159 | #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ |
160 | #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ | |
1da177e4 | 161 | |
8d153f71 | 162 | #define DRM_MAP_HASH_OFFSET 0x10000000 |
1da177e4 | 163 | |
b5e89ed5 | 164 | /*@}*/ |
1da177e4 | 165 | |
1da177e4 LT |
166 | /***********************************************************************/ |
167 | /** \name Macros to make printk easier */ | |
168 | /*@{*/ | |
169 | ||
170 | /** | |
171 | * Error output. | |
172 | * | |
173 | * \param fmt printf() like format string. | |
174 | * \param arg arguments | |
175 | */ | |
5ad3d883 JP |
176 | #define DRM_ERROR(fmt, ...) \ |
177 | drm_err(__func__, fmt, ##__VA_ARGS__) | |
1da177e4 | 178 | |
5d13d425 RC |
179 | /** |
180 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. | |
181 | * | |
182 | * \param fmt printf() like format string. | |
183 | * \param arg arguments | |
184 | */ | |
185 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ | |
186 | ({ \ | |
187 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
188 | DEFAULT_RATELIMIT_INTERVAL, \ | |
189 | DEFAULT_RATELIMIT_BURST); \ | |
190 | \ | |
191 | if (__ratelimit(&_rs)) \ | |
192 | drm_err(__func__, fmt, ##__VA_ARGS__); \ | |
193 | }) | |
194 | ||
5ad3d883 JP |
195 | #define DRM_INFO(fmt, ...) \ |
196 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) | |
1da177e4 | 197 | |
48b8f631 JN |
198 | #define DRM_INFO_ONCE(fmt, ...) \ |
199 | printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) | |
200 | ||
1da177e4 LT |
201 | /** |
202 | * Debug output. | |
b5e89ed5 | 203 | * |
1da177e4 LT |
204 | * \param fmt printf() like format string. |
205 | * \param arg arguments | |
206 | */ | |
207 | #if DRM_DEBUG_CODE | |
4fefcb27 | 208 | #define DRM_DEBUG(fmt, args...) \ |
1da177e4 | 209 | do { \ |
a73d4e91 | 210 | if (unlikely(drm_debug & DRM_UT_CORE)) \ |
1287aa90 | 211 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 212 | } while (0) |
213 | ||
8a4c47f3 | 214 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
4fefcb27 | 215 | do { \ |
a73d4e91 | 216 | if (unlikely(drm_debug & DRM_UT_DRIVER)) \ |
1287aa90 | 217 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 218 | } while (0) |
a73d4e91 | 219 | #define DRM_DEBUG_KMS(fmt, args...) \ |
4fefcb27 | 220 | do { \ |
a73d4e91 | 221 | if (unlikely(drm_debug & DRM_UT_KMS)) \ |
1287aa90 | 222 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
4fefcb27 | 223 | } while (0) |
3248877e DA |
224 | #define DRM_DEBUG_PRIME(fmt, args...) \ |
225 | do { \ | |
a73d4e91 | 226 | if (unlikely(drm_debug & DRM_UT_PRIME)) \ |
1287aa90 | 227 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
3248877e | 228 | } while (0) |
1da177e4 | 229 | #else |
8a4c47f3 ZY |
230 | #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) |
231 | #define DRM_DEBUG_KMS(fmt, args...) do { } while (0) | |
3248877e | 232 | #define DRM_DEBUG_PRIME(fmt, args...) do { } while (0) |
1da177e4 LT |
233 | #define DRM_DEBUG(fmt, arg...) do { } while (0) |
234 | #endif | |
235 | ||
1da177e4 LT |
236 | /*@}*/ |
237 | ||
1da177e4 LT |
238 | /***********************************************************************/ |
239 | /** \name Internal types and structures */ | |
240 | /*@{*/ | |
241 | ||
99a2657a | 242 | #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) |
1da177e4 LT |
243 | |
244 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) | |
1da177e4 LT |
245 | |
246 | /** | |
247 | * Test that the hardware lock is held by the caller, returning otherwise. | |
248 | * | |
249 | * \param dev DRM device. | |
250 | * \param filp file pointer of the caller. | |
251 | */ | |
dcae3626 RK |
252 | #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ |
253 | do { \ | |
254 | if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ | |
255 | _file_priv->master->lock.file_priv != _file_priv) { \ | |
c153f45f | 256 | DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ |
dcae3626 RK |
257 | __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ |
258 | _file_priv->master->lock.file_priv, _file_priv); \ | |
259 | return -EINVAL; \ | |
260 | } \ | |
1da177e4 LT |
261 | } while (0) |
262 | ||
1da177e4 LT |
263 | /** |
264 | * Ioctl function type. | |
265 | * | |
266 | * \param inode device inode. | |
6c340eac | 267 | * \param file_priv DRM file private pointer. |
1da177e4 LT |
268 | * \param cmd command. |
269 | * \param arg argument. | |
270 | */ | |
c153f45f EA |
271 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
272 | struct drm_file *file_priv); | |
1da177e4 | 273 | |
9a186645 DA |
274 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
275 | unsigned long arg); | |
276 | ||
1a95916f KH |
277 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
278 | #define DRM_MAJOR 226 | |
279 | ||
a7a2cc31 DA |
280 | #define DRM_AUTH 0x1 |
281 | #define DRM_MASTER 0x2 | |
282 | #define DRM_ROOT_ONLY 0x4 | |
f453ba04 | 283 | #define DRM_CONTROL_ALLOW 0x8 |
ed8b6704 | 284 | #define DRM_UNLOCKED 0x10 |
1793126f | 285 | #define DRM_RENDER_ALLOW 0x20 |
a7a2cc31 | 286 | |
c153f45f EA |
287 | struct drm_ioctl_desc { |
288 | unsigned int cmd; | |
a7a2cc31 | 289 | int flags; |
c972d750 | 290 | drm_ioctl_t *func; |
1b2f1489 | 291 | unsigned int cmd_drv; |
b9434d0f | 292 | const char *name; |
c153f45f EA |
293 | }; |
294 | ||
295 | /** | |
296 | * Creates a driver or general drm_ioctl_desc array entry for the given | |
297 | * ioctl, for use by drm_ioctl(). | |
298 | */ | |
1b2f1489 DA |
299 | |
300 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ | |
b9434d0f | 301 | [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl} |
1da177e4 | 302 | |
8fc2fdf4 | 303 | struct drm_magic_entry { |
8669cbc5 | 304 | struct list_head head; |
e0be428e | 305 | struct drm_hash_item hash_item; |
b5e89ed5 | 306 | struct drm_file *priv; |
8fc2fdf4 | 307 | }; |
1da177e4 | 308 | |
8fc2fdf4 | 309 | struct drm_vma_entry { |
bd1b331f | 310 | struct list_head head; |
1da177e4 | 311 | struct vm_area_struct *vma; |
b5e89ed5 | 312 | pid_t pid; |
8fc2fdf4 | 313 | }; |
1da177e4 LT |
314 | |
315 | /** | |
316 | * DMA buffer. | |
317 | */ | |
056219e2 | 318 | struct drm_buf { |
b5e89ed5 DA |
319 | int idx; /**< Index into master buflist */ |
320 | int total; /**< Buffer size */ | |
321 | int order; /**< log-base-2(total) */ | |
322 | int used; /**< Amount of buffer in use (for DMA) */ | |
323 | unsigned long offset; /**< Byte offset (used internally) */ | |
324 | void *address; /**< Address of buffer */ | |
325 | unsigned long bus_address; /**< Bus address of buffer */ | |
326 | struct drm_buf *next; /**< Kernel-only: used for free list */ | |
327 | __volatile__ int waiting; /**< On kernel DMA queue */ | |
328 | __volatile__ int pending; /**< On hardware DMA queue */ | |
6c340eac | 329 | struct drm_file *file_priv; /**< Private of holding file descr */ |
b5e89ed5 DA |
330 | int context; /**< Kernel queue for this buffer */ |
331 | int while_locked; /**< Dispatch this buffer while locked */ | |
1da177e4 | 332 | enum { |
b5e89ed5 DA |
333 | DRM_LIST_NONE = 0, |
334 | DRM_LIST_FREE = 1, | |
335 | DRM_LIST_WAIT = 2, | |
336 | DRM_LIST_PEND = 3, | |
337 | DRM_LIST_PRIO = 4, | |
1da177e4 | 338 | DRM_LIST_RECLAIM = 5 |
b5e89ed5 | 339 | } list; /**< Which list we're on */ |
1da177e4 | 340 | |
b5e89ed5 DA |
341 | int dev_priv_size; /**< Size of buffer private storage */ |
342 | void *dev_private; /**< Per-buffer private storage */ | |
056219e2 | 343 | }; |
1da177e4 | 344 | |
1da177e4 | 345 | /** bufs is one longer than it has to be */ |
cdd55a29 | 346 | struct drm_waitlist { |
b5e89ed5 | 347 | int count; /**< Number of possible buffers */ |
056219e2 DA |
348 | struct drm_buf **bufs; /**< List of pointers to buffers */ |
349 | struct drm_buf **rp; /**< Read pointer */ | |
350 | struct drm_buf **wp; /**< Write pointer */ | |
351 | struct drm_buf **end; /**< End pointer */ | |
b5e89ed5 DA |
352 | spinlock_t read_lock; |
353 | spinlock_t write_lock; | |
cdd55a29 | 354 | }; |
1da177e4 | 355 | |
cdd55a29 | 356 | struct drm_freelist { |
b5e89ed5 DA |
357 | int initialized; /**< Freelist in use */ |
358 | atomic_t count; /**< Number of free buffers */ | |
056219e2 | 359 | struct drm_buf *next; /**< End pointer */ |
1da177e4 LT |
360 | |
361 | wait_queue_head_t waiting; /**< Processes waiting on free bufs */ | |
b5e89ed5 DA |
362 | int low_mark; /**< Low water mark */ |
363 | int high_mark; /**< High water mark */ | |
364 | atomic_t wfh; /**< If waiting for high mark */ | |
365 | spinlock_t lock; | |
cdd55a29 | 366 | }; |
1da177e4 | 367 | |
ddf19b97 DA |
368 | typedef struct drm_dma_handle { |
369 | dma_addr_t busaddr; | |
370 | void *vaddr; | |
371 | size_t size; | |
372 | } drm_dma_handle_t; | |
373 | ||
1da177e4 LT |
374 | /** |
375 | * Buffer entry. There is one of this for each buffer size order. | |
376 | */ | |
cdd55a29 | 377 | struct drm_buf_entry { |
b5e89ed5 DA |
378 | int buf_size; /**< size */ |
379 | int buf_count; /**< number of buffers */ | |
056219e2 | 380 | struct drm_buf *buflist; /**< buffer list */ |
b5e89ed5 DA |
381 | int seg_count; |
382 | int page_order; | |
cdd55a29 | 383 | struct drm_dma_handle **seglist; |
b5e89ed5 | 384 | |
cdd55a29 DA |
385 | struct drm_freelist freelist; |
386 | }; | |
1da177e4 | 387 | |
c9a9c5e0 KH |
388 | /* Event queued up for userspace to read */ |
389 | struct drm_pending_event { | |
390 | struct drm_event *event; | |
391 | struct list_head link; | |
392 | struct drm_file *file_priv; | |
b9c2c9ae JB |
393 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
394 | we deliver the event, for tracing only */ | |
c9a9c5e0 KH |
395 | void (*destroy)(struct drm_pending_event *event); |
396 | }; | |
397 | ||
3248877e DA |
398 | /* initial implementaton using a linked list - todo hashtab */ |
399 | struct drm_prime_file_private { | |
400 | struct list_head head; | |
401 | struct mutex lock; | |
402 | }; | |
403 | ||
1da177e4 | 404 | /** File private data */ |
84b1fd10 | 405 | struct drm_file { |
39868bd7 CW |
406 | unsigned always_authenticated :1; |
407 | unsigned authenticated :1; | |
408 | unsigned is_master :1; /* this file private is a master for a minor */ | |
409 | /* true when the client has asked us to expose stereo 3D mode flags */ | |
410 | unsigned stereo_allowed :1; | |
411 | ||
5fce5e0b EB |
412 | struct pid *pid; |
413 | kuid_t uid; | |
b5e89ed5 | 414 | drm_magic_t magic; |
bd1b331f | 415 | struct list_head lhead; |
2c14f28b | 416 | struct drm_minor *minor; |
b5e89ed5 | 417 | unsigned long lock_count; |
7c1c2871 | 418 | |
673a394b EA |
419 | /** Mapping of mm object handles to object pointers. */ |
420 | struct idr object_idr; | |
421 | /** Lock for synchronization of access to object_idr. */ | |
422 | spinlock_t table_lock; | |
7c1c2871 | 423 | |
6c340eac | 424 | struct file *filp; |
8562b3f2 | 425 | void *driver_priv; |
7c1c2871 | 426 | |
7c1c2871 DA |
427 | struct drm_master *master; /* master this node is currently associated with |
428 | N.B. not always minor->master */ | |
4b096ac1 DV |
429 | /** |
430 | * fbs - List of framebuffers associated with this file. | |
431 | * | |
432 | * Protected by fbs_lock. Note that the fbs list holds a reference on | |
433 | * the fb object to prevent it from untimely disappearing. | |
434 | */ | |
f453ba04 | 435 | struct list_head fbs; |
4b096ac1 | 436 | struct mutex fbs_lock; |
c9a9c5e0 KH |
437 | |
438 | wait_queue_head_t event_wait; | |
439 | struct list_head event_list; | |
440 | int event_space; | |
3248877e DA |
441 | |
442 | struct drm_prime_file_private prime; | |
84b1fd10 | 443 | }; |
1da177e4 LT |
444 | |
445 | /** Wait queue */ | |
cdd55a29 | 446 | struct drm_queue { |
b5e89ed5 DA |
447 | atomic_t use_count; /**< Outstanding uses (+1) */ |
448 | atomic_t finalization; /**< Finalization in progress */ | |
449 | atomic_t block_count; /**< Count of processes waiting */ | |
450 | atomic_t block_read; /**< Queue blocked for reads */ | |
1da177e4 | 451 | wait_queue_head_t read_queue; /**< Processes waiting on block_read */ |
b5e89ed5 | 452 | atomic_t block_write; /**< Queue blocked for writes */ |
1da177e4 | 453 | wait_queue_head_t write_queue; /**< Processes waiting on block_write */ |
b5e89ed5 DA |
454 | atomic_t total_queued; /**< Total queued statistic */ |
455 | atomic_t total_flushed; /**< Total flushes statistic */ | |
456 | atomic_t total_locks; /**< Total locks statistics */ | |
c60ce623 | 457 | enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ |
cdd55a29 | 458 | struct drm_waitlist waitlist; /**< Pending buffers */ |
1da177e4 | 459 | wait_queue_head_t flush_queue; /**< Processes waiting until flush */ |
cdd55a29 | 460 | }; |
1da177e4 LT |
461 | |
462 | /** | |
463 | * Lock data. | |
464 | */ | |
55910517 | 465 | struct drm_lock_data { |
c60ce623 | 466 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
8562b3f2 DA |
467 | /** Private of lock holder's file (NULL=kernel) */ |
468 | struct drm_file *file_priv; | |
1da177e4 | 469 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
b5e89ed5 | 470 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
040ac320 TH |
471 | spinlock_t spinlock; |
472 | uint32_t kernel_waiters; | |
473 | uint32_t user_waiters; | |
474 | int idle_has_lock; | |
55910517 | 475 | }; |
1da177e4 LT |
476 | |
477 | /** | |
478 | * DMA data. | |
479 | */ | |
cdd55a29 | 480 | struct drm_device_dma { |
1da177e4 | 481 | |
cdd55a29 | 482 | struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ |
b5e89ed5 | 483 | int buf_count; /**< total number of buffers */ |
056219e2 | 484 | struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ |
b5e89ed5 DA |
485 | int seg_count; |
486 | int page_count; /**< number of pages */ | |
487 | unsigned long *pagelist; /**< page list */ | |
488 | unsigned long byte_count; | |
1da177e4 LT |
489 | enum { |
490 | _DRM_DMA_USE_AGP = 0x01, | |
b5e89ed5 | 491 | _DRM_DMA_USE_SG = 0x02, |
3417f33e GS |
492 | _DRM_DMA_USE_FB = 0x04, |
493 | _DRM_DMA_USE_PCI_RO = 0x08 | |
1da177e4 LT |
494 | } flags; |
495 | ||
cdd55a29 | 496 | }; |
1da177e4 | 497 | |
b5e89ed5 | 498 | /** |
1da177e4 LT |
499 | * AGP memory entry. Stored as a doubly linked list. |
500 | */ | |
55910517 | 501 | struct drm_agp_mem { |
b5e89ed5 | 502 | unsigned long handle; /**< handle */ |
d2e546b8 | 503 | struct agp_memory *memory; |
b5e89ed5 DA |
504 | unsigned long bound; /**< address */ |
505 | int pages; | |
bd1b331f | 506 | struct list_head head; |
55910517 | 507 | }; |
1da177e4 LT |
508 | |
509 | /** | |
510 | * AGP data. | |
511 | * | |
512 | * \sa drm_agp_init() and drm_device::agp. | |
513 | */ | |
55910517 | 514 | struct drm_agp_head { |
d2e546b8 | 515 | struct agp_kern_info agp_info; /**< AGP device information */ |
bd1b331f | 516 | struct list_head memory; |
b5e89ed5 DA |
517 | unsigned long mode; /**< AGP mode */ |
518 | struct agp_bridge_data *bridge; | |
519 | int enabled; /**< whether the AGP bus as been enabled */ | |
520 | int acquired; /**< whether the AGP device has been acquired */ | |
521 | unsigned long base; | |
522 | int agp_mtrr; | |
523 | int cant_use_aperture; | |
524 | unsigned long page_mask; | |
55910517 | 525 | }; |
1da177e4 LT |
526 | |
527 | /** | |
528 | * Scatter-gather memory. | |
529 | */ | |
55910517 | 530 | struct drm_sg_mem { |
b5e89ed5 DA |
531 | unsigned long handle; |
532 | void *virtual; | |
533 | int pages; | |
534 | struct page **pagelist; | |
535 | dma_addr_t *busaddr; | |
55910517 | 536 | }; |
1da177e4 | 537 | |
55910517 | 538 | struct drm_sigdata { |
b5e89ed5 | 539 | int context; |
c60ce623 | 540 | struct drm_hw_lock *lock; |
55910517 | 541 | }; |
1da177e4 | 542 | |
8562b3f2 | 543 | |
f77d390c BH |
544 | /** |
545 | * Kernel side of a mapping | |
546 | */ | |
547 | struct drm_local_map { | |
41c2e75e | 548 | resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ |
f77d390c BH |
549 | unsigned long size; /**< Requested physical size (bytes) */ |
550 | enum drm_map_type type; /**< Type of memory to map */ | |
551 | enum drm_map_flags flags; /**< Flags */ | |
552 | void *handle; /**< User-space: "Handle" to pass to mmap() */ | |
553 | /**< Kernel-space: kernel-virtual address */ | |
554 | int mtrr; /**< MTRR slot used */ | |
555 | }; | |
556 | ||
557 | typedef struct drm_local_map drm_local_map_t; | |
558 | ||
1da177e4 LT |
559 | /** |
560 | * Mappings list | |
561 | */ | |
55910517 | 562 | struct drm_map_list { |
b5e89ed5 | 563 | struct list_head head; /**< list head */ |
e0be428e | 564 | struct drm_hash_item hash; |
f77d390c | 565 | struct drm_local_map *map; /**< mapping */ |
8562b3f2 | 566 | uint64_t user_token; |
7c1c2871 | 567 | struct drm_master *master; |
55910517 | 568 | }; |
1da177e4 | 569 | |
1da177e4 LT |
570 | /** |
571 | * Context handle list | |
572 | */ | |
55910517 | 573 | struct drm_ctx_list { |
b5e89ed5 DA |
574 | struct list_head head; /**< list head */ |
575 | drm_context_t handle; /**< context handle */ | |
84b1fd10 | 576 | struct drm_file *tag; /**< associated fd private data */ |
55910517 | 577 | }; |
1da177e4 | 578 | |
ea98a92f DA |
579 | /* location of GART table */ |
580 | #define DRM_ATI_GART_MAIN 1 | |
581 | #define DRM_ATI_GART_FB 2 | |
582 | ||
f2b04cd2 DA |
583 | #define DRM_ATI_GART_PCI 1 |
584 | #define DRM_ATI_GART_PCIE 2 | |
585 | #define DRM_ATI_GART_IGP 3 | |
586 | ||
55910517 | 587 | struct drm_ati_pcigart_info { |
ea98a92f | 588 | int gart_table_location; |
f2b04cd2 | 589 | int gart_reg_if; |
f26c473c | 590 | void *addr; |
ea98a92f | 591 | dma_addr_t bus_addr; |
b05c2385 DA |
592 | dma_addr_t table_mask; |
593 | struct drm_dma_handle *table_handle; | |
f77d390c | 594 | struct drm_local_map mapping; |
f2b04cd2 | 595 | int table_size; |
55910517 | 596 | }; |
ea98a92f | 597 | |
673a394b EA |
598 | /** |
599 | * This structure defines the drm_mm memory object, which will be used by the | |
600 | * DRM for its buffer objects. | |
601 | */ | |
602 | struct drm_gem_object { | |
603 | /** Reference count of this object */ | |
604 | struct kref refcount; | |
605 | ||
a8e11d1c DV |
606 | /** |
607 | * handle_count - gem file_priv handle count of this object | |
608 | * | |
609 | * Each handle also holds a reference. Note that when the handle_count | |
610 | * drops to 0 any global names (e.g. the id in the flink namespace) will | |
611 | * be cleared. | |
612 | * | |
613 | * Protected by dev->object_name_lock. | |
614 | * */ | |
615 | unsigned handle_count; | |
673a394b EA |
616 | |
617 | /** Related drm device */ | |
618 | struct drm_device *dev; | |
619 | ||
620 | /** File representing the shmem storage */ | |
621 | struct file *filp; | |
622 | ||
a2c0a97b | 623 | /* Mapping info for this object */ |
0de23977 | 624 | struct drm_vma_offset_node vma_node; |
a2c0a97b | 625 | |
673a394b EA |
626 | /** |
627 | * Size of the object, in bytes. Immutable over the object's | |
628 | * lifetime. | |
629 | */ | |
630 | size_t size; | |
631 | ||
632 | /** | |
633 | * Global name for this object, starts at 1. 0 means unnamed. | |
634 | * Access is covered by the object_name_lock in the related drm_device | |
635 | */ | |
636 | int name; | |
637 | ||
638 | /** | |
639 | * Memory domains. These monitor which caches contain read/write data | |
640 | * related to the object. When transitioning from one set of domains | |
641 | * to another, the driver is called to ensure that caches are suitably | |
642 | * flushed and invalidated | |
643 | */ | |
644 | uint32_t read_domains; | |
645 | uint32_t write_domain; | |
646 | ||
647 | /** | |
648 | * While validating an exec operation, the | |
649 | * new read/write domain values are computed here. | |
650 | * They will be transferred to the above values | |
651 | * at the point that any cache flushing occurs | |
652 | */ | |
653 | uint32_t pending_read_domains; | |
654 | uint32_t pending_write_domain; | |
655 | ||
319c933c DV |
656 | /** |
657 | * dma_buf - dma buf associated with this GEM object | |
658 | * | |
659 | * Pointer to the dma-buf associated with this gem object (either | |
660 | * through importing or exporting). We break the resulting reference | |
661 | * loop when the last gem handle for this object is released. | |
662 | * | |
663 | * Protected by obj->object_name_lock | |
664 | */ | |
665 | struct dma_buf *dma_buf; | |
3248877e | 666 | |
7106bf96 DV |
667 | /** |
668 | * import_attach - dma buf attachment backing this object | |
669 | * | |
670 | * Any foreign dma_buf imported as a gem object has this set to the | |
671 | * attachment point for the device. This is invariant over the lifetime | |
672 | * of a gem object. | |
673 | * | |
674 | * The driver's ->gem_free_object callback is responsible for cleaning | |
675 | * up the dma_buf attachment and references acquired at import time. | |
838cd445 DV |
676 | * |
677 | * Note that the drm gem/prime core does not depend upon drivers setting | |
678 | * this field any more. So for drivers where this doesn't make sense | |
679 | * (e.g. virtual devices or a displaylink behind an usb bus) they can | |
680 | * simply leave it as NULL. | |
7106bf96 | 681 | */ |
3248877e | 682 | struct dma_buf_attachment *import_attach; |
673a394b EA |
683 | }; |
684 | ||
a1ce3928 | 685 | #include <drm/drm_crtc.h> |
f453ba04 | 686 | |
7c1c2871 DA |
687 | /* per-master structure */ |
688 | struct drm_master { | |
689 | ||
690 | struct kref refcount; /* refcount for this master */ | |
691 | ||
692 | struct list_head head; /**< each minor contains a list of masters */ | |
693 | struct drm_minor *minor; /**< link back to minor we are a master for */ | |
694 | ||
695 | char *unique; /**< Unique identifier: e.g., busid */ | |
696 | int unique_len; /**< Length of unique field */ | |
1147c9cd | 697 | int unique_size; /**< amount allocated */ |
7c1c2871 DA |
698 | |
699 | int blocked; /**< Blocked due to VC switch? */ | |
700 | ||
701 | /** \name Authentication */ | |
702 | /*@{ */ | |
703 | struct drm_open_hash magiclist; | |
704 | struct list_head magicfree; | |
705 | /*@} */ | |
706 | ||
707 | struct drm_lock_data lock; /**< Information on hardware lock */ | |
708 | ||
709 | void *driver_priv; /**< Private structure for driver to use */ | |
710 | }; | |
711 | ||
27641c3f MK |
712 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
713 | * in initial implementation. | |
714 | */ | |
715 | #define DRM_VBLANKTIME_RBSIZE 2 | |
716 | ||
717 | /* Flags and return codes for get_vblank_timestamp() driver function. */ | |
718 | #define DRM_CALLED_FROM_VBLIRQ 1 | |
719 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) | |
720 | #define DRM_VBLANKTIME_INVBL (1 << 1) | |
721 | ||
722 | /* get_scanout_position() return flags */ | |
723 | #define DRM_SCANOUTPOS_VALID (1 << 0) | |
724 | #define DRM_SCANOUTPOS_INVBL (1 << 1) | |
725 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) | |
726 | ||
8410ea3b DA |
727 | struct drm_bus { |
728 | int bus_type; | |
729 | int (*get_irq)(struct drm_device *dev); | |
730 | const char *(*get_name)(struct drm_device *dev); | |
731 | int (*set_busid)(struct drm_device *dev, struct drm_master *master); | |
732 | int (*set_unique)(struct drm_device *dev, struct drm_master *master, | |
733 | struct drm_unique *unique); | |
734 | int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p); | |
8410ea3b DA |
735 | }; |
736 | ||
1da177e4 LT |
737 | /** |
738 | * DRM driver structure. This structure represent the common code for | |
739 | * a family of cards. There will one drm_device for each card present | |
740 | * in this family | |
741 | */ | |
1da177e4 | 742 | struct drm_driver { |
22eae947 DA |
743 | int (*load) (struct drm_device *, unsigned long flags); |
744 | int (*firstopen) (struct drm_device *); | |
84b1fd10 | 745 | int (*open) (struct drm_device *, struct drm_file *); |
6c340eac | 746 | void (*preclose) (struct drm_device *, struct drm_file *file_priv); |
84b1fd10 | 747 | void (*postclose) (struct drm_device *, struct drm_file *); |
22eae947 DA |
748 | void (*lastclose) (struct drm_device *); |
749 | int (*unload) (struct drm_device *); | |
b932ccb5 | 750 | int (*suspend) (struct drm_device *, pm_message_t state); |
e8b962b6 | 751 | int (*resume) (struct drm_device *); |
c153f45f | 752 | int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); |
b5e89ed5 | 753 | int (*dma_quiescent) (struct drm_device *); |
84b1fd10 | 754 | int (*context_dtor) (struct drm_device *dev, int context); |
b5e89ed5 | 755 | |
0a3e67a4 JB |
756 | /** |
757 | * get_vblank_counter - get raw hardware vblank counter | |
758 | * @dev: DRM device | |
759 | * @crtc: counter to fetch | |
760 | * | |
3b02ab88 LP |
761 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
762 | * If a device doesn't have a hardware counter, the driver can simply | |
763 | * return the value of drm_vblank_count. The DRM core will account for | |
764 | * missed vblank events while interrupts where disabled based on system | |
765 | * timestamps. | |
0a3e67a4 JB |
766 | * |
767 | * Wraparound handling and loss of events due to modesetting is dealt | |
768 | * with in the DRM core code. | |
769 | * | |
770 | * RETURNS | |
771 | * Raw vblank counter value. | |
772 | */ | |
773 | u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); | |
774 | ||
775 | /** | |
776 | * enable_vblank - enable vblank interrupt events | |
777 | * @dev: DRM device | |
778 | * @crtc: which irq to enable | |
779 | * | |
780 | * Enable vblank interrupts for @crtc. If the device doesn't have | |
781 | * a hardware vblank counter, this routine should be a no-op, since | |
782 | * interrupts will have to stay on to keep the count accurate. | |
783 | * | |
784 | * RETURNS | |
785 | * Zero on success, appropriate errno if the given @crtc's vblank | |
786 | * interrupt cannot be enabled. | |
787 | */ | |
788 | int (*enable_vblank) (struct drm_device *dev, int crtc); | |
789 | ||
790 | /** | |
791 | * disable_vblank - disable vblank interrupt events | |
792 | * @dev: DRM device | |
793 | * @crtc: which irq to enable | |
794 | * | |
795 | * Disable vblank interrupts for @crtc. If the device doesn't have | |
796 | * a hardware vblank counter, this routine should be a no-op, since | |
797 | * interrupts will have to stay on to keep the count accurate. | |
798 | */ | |
799 | void (*disable_vblank) (struct drm_device *dev, int crtc); | |
800 | ||
cda17380 DA |
801 | /** |
802 | * Called by \c drm_device_is_agp. Typically used to determine if a | |
803 | * card is really attached to AGP or not. | |
804 | * | |
805 | * \param dev DRM device handle | |
806 | * | |
807 | * \returns | |
808 | * One of three values is returned depending on whether or not the | |
809 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP | |
810 | * (return of 1), or may or may not be AGP (return of 2). | |
811 | */ | |
84b1fd10 | 812 | int (*device_is_agp) (struct drm_device *dev); |
cda17380 | 813 | |
27641c3f MK |
814 | /** |
815 | * Called by vblank timestamping code. | |
816 | * | |
8f6fce03 MK |
817 | * Return the current display scanout position from a crtc, and an |
818 | * optional accurate ktime_get timestamp of when position was measured. | |
27641c3f MK |
819 | * |
820 | * \param dev DRM device. | |
821 | * \param crtc Id of the crtc to query. | |
abca9e45 | 822 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
27641c3f MK |
823 | * \param *vpos Target location for current vertical scanout position. |
824 | * \param *hpos Target location for current horizontal scanout position. | |
8f6fce03 MK |
825 | * \param *stime Target location for timestamp taken immediately before |
826 | * scanout position query. Can be NULL to skip timestamp. | |
827 | * \param *etime Target location for timestamp taken immediately after | |
828 | * scanout position query. Can be NULL to skip timestamp. | |
27641c3f MK |
829 | * |
830 | * Returns vpos as a positive number while in active scanout area. | |
831 | * Returns vpos as a negative number inside vblank, counting the number | |
832 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline | |
833 | * until start of active scanout / end of vblank." | |
834 | * | |
835 | * \return Flags, or'ed together as follows: | |
836 | * | |
25985edc | 837 | * DRM_SCANOUTPOS_VALID = Query successful. |
27641c3f MK |
838 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
839 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of | |
840 | * this flag means that returned position may be offset by a constant | |
841 | * but unknown small number of scanlines wrt. real scanout position. | |
842 | * | |
843 | */ | |
844 | int (*get_scanout_position) (struct drm_device *dev, int crtc, | |
abca9e45 | 845 | unsigned int flags, |
8f6fce03 MK |
846 | int *vpos, int *hpos, ktime_t *stime, |
847 | ktime_t *etime); | |
27641c3f MK |
848 | |
849 | /** | |
850 | * Called by \c drm_get_last_vbltimestamp. Should return a precise | |
851 | * timestamp when the most recent VBLANK interval ended or will end. | |
852 | * | |
853 | * Specifically, the timestamp in @vblank_time should correspond as | |
854 | * closely as possible to the time when the first video scanline of | |
855 | * the video frame after the end of VBLANK will start scanning out, | |
42b2aa86 | 856 | * the time immediately after end of the VBLANK interval. If the |
27641c3f MK |
857 | * @crtc is currently inside VBLANK, this will be a time in the future. |
858 | * If the @crtc is currently scanning out a frame, this will be the | |
859 | * past start time of the current scanout. This is meant to adhere | |
860 | * to the OpenML OML_sync_control extension specification. | |
861 | * | |
862 | * \param dev dev DRM device handle. | |
863 | * \param crtc crtc for which timestamp should be returned. | |
864 | * \param *max_error Maximum allowable timestamp error in nanoseconds. | |
865 | * Implementation should strive to provide timestamp | |
866 | * with an error of at most *max_error nanoseconds. | |
867 | * Returns true upper bound on error for timestamp. | |
868 | * \param *vblank_time Target location for returned vblank timestamp. | |
869 | * \param flags 0 = Defaults, no special treatment needed. | |
870 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank | |
871 | * irq handler. Some drivers need to apply some workarounds | |
872 | * for gpu-specific vblank irq quirks if flag is set. | |
873 | * | |
874 | * \returns | |
875 | * Zero if timestamping isn't supported in current display mode or a | |
876 | * negative number on failure. A positive status code on success, | |
877 | * which describes how the vblank_time timestamp was computed. | |
878 | */ | |
879 | int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, | |
880 | int *max_error, | |
881 | struct timeval *vblank_time, | |
882 | unsigned flags); | |
883 | ||
1da177e4 | 884 | /* these have to be filled in */ |
b5e89ed5 | 885 | |
e9f0d76f | 886 | irqreturn_t(*irq_handler) (int irq, void *arg); |
84b1fd10 | 887 | void (*irq_preinstall) (struct drm_device *dev); |
0a3e67a4 | 888 | int (*irq_postinstall) (struct drm_device *dev); |
84b1fd10 | 889 | void (*irq_uninstall) (struct drm_device *dev); |
22eae947 | 890 | |
7c1c2871 DA |
891 | /* Master routines */ |
892 | int (*master_create)(struct drm_device *dev, struct drm_master *master); | |
893 | void (*master_destroy)(struct drm_device *dev, struct drm_master *master); | |
862302ff TH |
894 | /** |
895 | * master_set is called whenever the minor master is set. | |
896 | * master_drop is called whenever the minor master is dropped. | |
897 | */ | |
898 | ||
899 | int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, | |
900 | bool from_open); | |
901 | void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, | |
902 | bool from_release); | |
7c1c2871 | 903 | |
955b12de BG |
904 | int (*debugfs_init)(struct drm_minor *minor); |
905 | void (*debugfs_cleanup)(struct drm_minor *minor); | |
673a394b EA |
906 | |
907 | /** | |
908 | * Driver-specific constructor for drm_gem_objects, to set up | |
909 | * obj->driver_private. | |
910 | * | |
911 | * Returns 0 on success. | |
912 | */ | |
673a394b | 913 | void (*gem_free_object) (struct drm_gem_object *obj); |
304eda32 BS |
914 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
915 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); | |
673a394b | 916 | |
3248877e DA |
917 | /* prime: */ |
918 | /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ | |
919 | int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, | |
920 | uint32_t handle, uint32_t flags, int *prime_fd); | |
921 | /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ | |
922 | int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, | |
923 | int prime_fd, uint32_t *handle); | |
924 | /* export GEM -> dmabuf */ | |
925 | struct dma_buf * (*gem_prime_export)(struct drm_device *dev, | |
926 | struct drm_gem_object *obj, int flags); | |
927 | /* import dmabuf -> GEM */ | |
928 | struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, | |
929 | struct dma_buf *dma_buf); | |
89177644 AP |
930 | /* low-level interface used by drm_gem_prime_{import,export} */ |
931 | int (*gem_prime_pin)(struct drm_gem_object *obj); | |
102d6dba | 932 | void (*gem_prime_unpin)(struct drm_gem_object *obj); |
89177644 AP |
933 | struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); |
934 | struct drm_gem_object *(*gem_prime_import_sg_table)( | |
935 | struct drm_device *dev, size_t size, | |
936 | struct sg_table *sgt); | |
937 | void *(*gem_prime_vmap)(struct drm_gem_object *obj); | |
938 | void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); | |
7c397cd9 JS |
939 | int (*gem_prime_mmap)(struct drm_gem_object *obj, |
940 | struct vm_area_struct *vma); | |
3248877e | 941 | |
28d52043 DA |
942 | /* vga arb irq handler */ |
943 | void (*vgaarb_irq)(struct drm_device *dev, bool state); | |
944 | ||
ff72145b DA |
945 | /* dumb alloc support */ |
946 | int (*dumb_create)(struct drm_file *file_priv, | |
947 | struct drm_device *dev, | |
948 | struct drm_mode_create_dumb *args); | |
949 | int (*dumb_map_offset)(struct drm_file *file_priv, | |
950 | struct drm_device *dev, uint32_t handle, | |
951 | uint64_t *offset); | |
952 | int (*dumb_destroy)(struct drm_file *file_priv, | |
953 | struct drm_device *dev, | |
954 | uint32_t handle); | |
955 | ||
a2c0a97b | 956 | /* Driver private ops for this object */ |
78b68556 | 957 | const struct vm_operations_struct *gem_vm_ops; |
a2c0a97b | 958 | |
22eae947 DA |
959 | int major; |
960 | int minor; | |
961 | int patchlevel; | |
962 | char *name; | |
963 | char *desc; | |
964 | char *date; | |
965 | ||
1da177e4 LT |
966 | u32 driver_features; |
967 | int dev_priv_size; | |
baa70943 | 968 | const struct drm_ioctl_desc *ioctls; |
1da177e4 | 969 | int num_ioctls; |
e08e96de | 970 | const struct file_operations *fops; |
8410ea3b DA |
971 | union { |
972 | struct pci_driver *pci; | |
973 | struct platform_device *platform_device; | |
a250b9fd | 974 | struct usb_driver *usb; |
8410ea3b DA |
975 | } kdriver; |
976 | struct drm_bus *bus; | |
977 | ||
b3f2333d DV |
978 | /* List of devices hanging off this driver with stealth attach. */ |
979 | struct list_head legacy_dev_list; | |
1da177e4 LT |
980 | }; |
981 | ||
cb8a239b DH |
982 | enum drm_minor_type { |
983 | DRM_MINOR_LEGACY, | |
984 | DRM_MINOR_CONTROL, | |
985 | DRM_MINOR_RENDER, | |
986 | DRM_MINOR_CNT, | |
987 | }; | |
2c14f28b | 988 | |
955b12de BG |
989 | /** |
990 | * Info file list entry. This structure represents a debugfs or proc file to | |
991 | * be created by the drm core | |
992 | */ | |
993 | struct drm_info_list { | |
994 | const char *name; /** file name */ | |
995 | int (*show)(struct seq_file*, void*); /** show callback */ | |
996 | u32 driver_features; /**< Required driver features for this entry */ | |
997 | void *data; | |
998 | }; | |
999 | ||
1000 | /** | |
1001 | * debugfs node structure. This structure represents a debugfs file. | |
1002 | */ | |
1003 | struct drm_info_node { | |
1004 | struct list_head list; | |
1005 | struct drm_minor *minor; | |
ce089b54 | 1006 | const struct drm_info_list *info_ent; |
955b12de BG |
1007 | struct dentry *dent; |
1008 | }; | |
1009 | ||
1da177e4 | 1010 | /** |
2c14f28b | 1011 | * DRM minor structure. This structure represents a drm minor number. |
1da177e4 | 1012 | */ |
2c14f28b DA |
1013 | struct drm_minor { |
1014 | int index; /**< Minor device number */ | |
1015 | int type; /**< Control or render */ | |
5bdebb18 | 1016 | struct device *kdev; /**< Linux device */ |
1da177e4 | 1017 | struct drm_device *dev; |
955b12de | 1018 | |
955b12de | 1019 | struct dentry *debugfs_root; |
b3e067c0 MS |
1020 | |
1021 | struct list_head debugfs_list; | |
1022 | struct mutex debugfs_lock; /* Protects debugfs_list. */ | |
955b12de | 1023 | |
7c1c2871 DA |
1024 | struct drm_master *master; /* currently active master for this node */ |
1025 | struct list_head master_list; | |
f453ba04 | 1026 | struct drm_mode_group mode_group; |
84b1fd10 | 1027 | }; |
1da177e4 | 1028 | |
1794d257 | 1029 | |
c9a9c5e0 KH |
1030 | struct drm_pending_vblank_event { |
1031 | struct drm_pending_event base; | |
1032 | int pipe; | |
1033 | struct drm_event_vblank event; | |
1034 | }; | |
1035 | ||
5380e929 VS |
1036 | struct drm_vblank_crtc { |
1037 | wait_queue_head_t queue; /**< VBLANK wait queue */ | |
1038 | struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */ | |
1039 | atomic_t count; /**< number of VBLANK interrupts */ | |
1040 | atomic_t refcount; /* number of users of vblank interruptsper crtc */ | |
1041 | u32 last; /* protected by dev->vbl_lock, used */ | |
1042 | /* for wraparound handling */ | |
1043 | u32 last_wait; /* Last vblank seqno waited per CRTC */ | |
1044 | unsigned int inmodeset; /* Display driver is setting mode */ | |
1045 | bool enabled; /* so we don't call enable more than | |
1046 | once per disable */ | |
1047 | }; | |
1048 | ||
1da177e4 LT |
1049 | /** |
1050 | * DRM device structure. This structure represent a complete card that | |
1051 | * may contain multiple heads. | |
1052 | */ | |
84b1fd10 | 1053 | struct drm_device { |
b3f2333d | 1054 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
b5e89ed5 DA |
1055 | char *devname; /**< For /proc/interrupts */ |
1056 | int if_version; /**< Highest interface version set */ | |
1da177e4 | 1057 | |
45e212d2 DH |
1058 | /** \name Lifetime Management */ |
1059 | /*@{ */ | |
099d1c29 | 1060 | struct kref ref; /**< Object ref-count */ |
45e212d2 DH |
1061 | struct device *dev; /**< Device structure of bus-device */ |
1062 | struct drm_driver *driver; /**< DRM driver managing the device */ | |
1063 | void *dev_private; /**< DRM driver private data */ | |
45e212d2 DH |
1064 | struct drm_minor *control; /**< Control node */ |
1065 | struct drm_minor *primary; /**< Primary node */ | |
1066 | struct drm_minor *render; /**< Render node */ | |
1067 | atomic_t unplugged; /**< Flag whether dev is dead */ | |
07b48c3a | 1068 | struct inode *anon_inode; /**< inode for private address-space */ |
45e212d2 DH |
1069 | /*@} */ |
1070 | ||
1da177e4 | 1071 | /** \name Locks */ |
b5e89ed5 DA |
1072 | /*@{ */ |
1073 | spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ | |
30e2fb18 | 1074 | struct mutex struct_mutex; /**< For others */ |
b5e89ed5 | 1075 | /*@} */ |
1da177e4 LT |
1076 | |
1077 | /** \name Usage Counters */ | |
b5e89ed5 DA |
1078 | /*@{ */ |
1079 | int open_count; /**< Outstanding files open */ | |
b5e89ed5 DA |
1080 | int buf_use; /**< Buffers in use -- cannot alloc */ |
1081 | atomic_t buf_alloc; /**< Buffer allocation in progress */ | |
1082 | /*@} */ | |
1da177e4 | 1083 | |
bd1b331f | 1084 | struct list_head filelist; |
1da177e4 LT |
1085 | |
1086 | /** \name Memory management */ | |
b5e89ed5 | 1087 | /*@{ */ |
bd1b331f | 1088 | struct list_head maplist; /**< Linked list of regions */ |
e0be428e | 1089 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
1da177e4 LT |
1090 | |
1091 | /** \name Context handle management */ | |
b5e89ed5 | 1092 | /*@{ */ |
bd1b331f | 1093 | struct list_head ctxlist; /**< Linked list of context handles */ |
30e2fb18 | 1094 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1da177e4 | 1095 | |
62968144 | 1096 | struct idr ctx_idr; |
1da177e4 | 1097 | |
bd1b331f | 1098 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
f453ba04 | 1099 | |
b5e89ed5 | 1100 | /*@} */ |
1da177e4 | 1101 | |
a344a7e7 | 1102 | /** \name DMA support */ |
b5e89ed5 | 1103 | /*@{ */ |
cdd55a29 | 1104 | struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
b5e89ed5 | 1105 | /*@} */ |
1da177e4 LT |
1106 | |
1107 | /** \name Context support */ | |
b5e89ed5 | 1108 | /*@{ */ |
4423843c | 1109 | bool irq_enabled; /**< True if irq handler is enabled */ |
1da177e4 | 1110 | __volatile__ long context_flag; /**< Context swapping flag */ |
b5e89ed5 | 1111 | int last_context; /**< Last current context */ |
b5e89ed5 DA |
1112 | /*@} */ |
1113 | ||
1da177e4 | 1114 | /** \name VBLANK IRQ support */ |
b5e89ed5 DA |
1115 | /*@{ */ |
1116 | ||
0a3e67a4 JB |
1117 | /* |
1118 | * At load time, disabling the vblank interrupt won't be allowed since | |
1119 | * old clients may not call the modeset ioctl and therefore misbehave. | |
1120 | * Once the modeset ioctl *has* been called though, we can safely | |
1121 | * disable them when unused. | |
1122 | */ | |
ba0bf120 | 1123 | bool vblank_disable_allowed; |
0a3e67a4 | 1124 | |
5380e929 VS |
1125 | /* array of size num_crtcs */ |
1126 | struct drm_vblank_crtc *vblank; | |
0a3e67a4 | 1127 | |
27641c3f | 1128 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
b5e89ed5 | 1129 | spinlock_t vbl_lock; |
0a3e67a4 JB |
1130 | struct timer_list vblank_disable_timer; |
1131 | ||
1132 | u32 max_vblank_count; /**< size of vblank counter register */ | |
b5e89ed5 | 1133 | |
c9a9c5e0 KH |
1134 | /** |
1135 | * List of events | |
1136 | */ | |
1137 | struct list_head vblank_event_list; | |
1138 | spinlock_t event_lock; | |
1139 | ||
b5e89ed5 | 1140 | /*@} */ |
b5e89ed5 | 1141 | |
55910517 | 1142 | struct drm_agp_head *agp; /**< AGP data */ |
1da177e4 | 1143 | |
b5e89ed5 | 1144 | struct pci_dev *pdev; /**< PCI device structure */ |
1da177e4 | 1145 | #ifdef __alpha__ |
1da177e4 | 1146 | struct pci_controller *hose; |
1da177e4 | 1147 | #endif |
dcdb1674 JC |
1148 | |
1149 | struct platform_device *platformdev; /**< Platform device struture */ | |
a250b9fd | 1150 | struct usb_device *usbdev; |
dcdb1674 | 1151 | |
55910517 | 1152 | struct drm_sg_mem *sg; /**< Scatter gather memory */ |
19227561 | 1153 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
55910517 | 1154 | struct drm_sigdata sigdata; /**< For block_all_signals */ |
b5e89ed5 DA |
1155 | sigset_t sigmask; |
1156 | ||
f77d390c | 1157 | struct drm_local_map *agp_buffer_map; |
d1f2b55a | 1158 | unsigned int agp_buffer_token; |
bea5679f | 1159 | |
f453ba04 DA |
1160 | struct drm_mode_config mode_config; /**< Current mode config */ |
1161 | ||
673a394b EA |
1162 | /** \name GEM information */ |
1163 | /*@{ */ | |
cd4f013f | 1164 | struct mutex object_name_lock; |
673a394b | 1165 | struct idr object_name_idr; |
b04a5906 | 1166 | struct drm_vma_offset_manager *vma_offset_manager; |
673a394b | 1167 | /*@} */ |
5bcf719b | 1168 | int switch_power_state; |
84b1fd10 | 1169 | }; |
1da177e4 | 1170 | |
5bcf719b DA |
1171 | #define DRM_SWITCH_POWER_ON 0 |
1172 | #define DRM_SWITCH_POWER_OFF 1 | |
1173 | #define DRM_SWITCH_POWER_CHANGING 2 | |
13bb9cc8 | 1174 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
5bcf719b | 1175 | |
b5e89ed5 DA |
1176 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
1177 | int feature) | |
1da177e4 LT |
1178 | { |
1179 | return ((dev->driver->driver_features & feature) ? 1 : 0); | |
1180 | } | |
1181 | ||
dcdb1674 JC |
1182 | static inline int drm_dev_to_irq(struct drm_device *dev) |
1183 | { | |
8410ea3b | 1184 | return dev->driver->bus->get_irq(dev); |
dcdb1674 JC |
1185 | } |
1186 | ||
2c07a21d DA |
1187 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
1188 | { | |
1189 | smp_wmb(); | |
1190 | atomic_set(&dev->unplugged, 1); | |
1191 | } | |
1192 | ||
1193 | static inline int drm_device_is_unplugged(struct drm_device *dev) | |
1194 | { | |
1195 | int ret = atomic_read(&dev->unplugged); | |
1196 | smp_rmb(); | |
1197 | return ret; | |
1198 | } | |
1199 | ||
8faf6b18 DV |
1200 | static inline bool drm_modeset_is_locked(struct drm_device *dev) |
1201 | { | |
1202 | return mutex_is_locked(&dev->mode_config.mutex); | |
1203 | } | |
1204 | ||
1793126f DH |
1205 | static inline bool drm_is_render_client(struct drm_file *file_priv) |
1206 | { | |
1207 | return file_priv->minor->type == DRM_MINOR_RENDER; | |
1208 | } | |
1209 | ||
1da177e4 LT |
1210 | /******************************************************************/ |
1211 | /** \name Internal function definitions */ | |
1212 | /*@{*/ | |
1213 | ||
1da177e4 | 1214 | /* Driver support (drm_drv.h) */ |
ed8b6704 AB |
1215 | extern long drm_ioctl(struct file *filp, |
1216 | unsigned int cmd, unsigned long arg); | |
b5e89ed5 DA |
1217 | extern long drm_compat_ioctl(struct file *filp, |
1218 | unsigned int cmd, unsigned long arg); | |
84b1fd10 | 1219 | extern int drm_lastclose(struct drm_device *dev); |
1da177e4 LT |
1220 | |
1221 | /* Device support (drm_fops.h) */ | |
58374713 | 1222 | extern struct mutex drm_global_mutex; |
b5e89ed5 DA |
1223 | extern int drm_open(struct inode *inode, struct file *filp); |
1224 | extern int drm_stub_open(struct inode *inode, struct file *filp); | |
c9a9c5e0 KH |
1225 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
1226 | size_t count, loff_t *offset); | |
b5e89ed5 | 1227 | extern int drm_release(struct inode *inode, struct file *filp); |
1da177e4 LT |
1228 | |
1229 | /* Mapping support (drm_vm.h) */ | |
b5e89ed5 | 1230 | extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); |
a2c0a97b | 1231 | extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma); |
b06d66be RC |
1232 | extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma); |
1233 | extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma); | |
b5e89ed5 | 1234 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
1da177e4 LT |
1235 | |
1236 | /* Memory management support (drm_memory.h) */ | |
a1ce3928 | 1237 | #include <drm/drm_memory.h> |
1da177e4 | 1238 | |
d2e546b8 | 1239 | |
1da177e4 | 1240 | /* Misc. IOCTL support (drm_ioctl.h) */ |
c153f45f EA |
1241 | extern int drm_irq_by_busid(struct drm_device *dev, void *data, |
1242 | struct drm_file *file_priv); | |
1243 | extern int drm_getunique(struct drm_device *dev, void *data, | |
1244 | struct drm_file *file_priv); | |
1245 | extern int drm_setunique(struct drm_device *dev, void *data, | |
1246 | struct drm_file *file_priv); | |
1247 | extern int drm_getmap(struct drm_device *dev, void *data, | |
1248 | struct drm_file *file_priv); | |
1249 | extern int drm_getclient(struct drm_device *dev, void *data, | |
1250 | struct drm_file *file_priv); | |
1251 | extern int drm_getstats(struct drm_device *dev, void *data, | |
1252 | struct drm_file *file_priv); | |
9f35421e BS |
1253 | extern int drm_getcap(struct drm_device *dev, void *data, |
1254 | struct drm_file *file_priv); | |
1c0814fe DL |
1255 | extern int drm_setclientcap(struct drm_device *dev, void *data, |
1256 | struct drm_file *file_priv); | |
c153f45f EA |
1257 | extern int drm_setversion(struct drm_device *dev, void *data, |
1258 | struct drm_file *file_priv); | |
1259 | extern int drm_noop(struct drm_device *dev, void *data, | |
1260 | struct drm_file *file_priv); | |
1da177e4 LT |
1261 | |
1262 | /* Context IOCTL support (drm_context.h) */ | |
c153f45f EA |
1263 | extern int drm_resctx(struct drm_device *dev, void *data, |
1264 | struct drm_file *file_priv); | |
1265 | extern int drm_addctx(struct drm_device *dev, void *data, | |
1266 | struct drm_file *file_priv); | |
c153f45f EA |
1267 | extern int drm_getctx(struct drm_device *dev, void *data, |
1268 | struct drm_file *file_priv); | |
1269 | extern int drm_switchctx(struct drm_device *dev, void *data, | |
1270 | struct drm_file *file_priv); | |
1271 | extern int drm_newctx(struct drm_device *dev, void *data, | |
1272 | struct drm_file *file_priv); | |
1273 | extern int drm_rmctx(struct drm_device *dev, void *data, | |
1274 | struct drm_file *file_priv); | |
b5e89ed5 | 1275 | |
c21eb21c DA |
1276 | extern int drm_ctxbitmap_init(struct drm_device *dev); |
1277 | extern void drm_ctxbitmap_cleanup(struct drm_device *dev); | |
1278 | extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); | |
b5e89ed5 | 1279 | |
c153f45f EA |
1280 | extern int drm_setsareactx(struct drm_device *dev, void *data, |
1281 | struct drm_file *file_priv); | |
1282 | extern int drm_getsareactx(struct drm_device *dev, void *data, | |
1283 | struct drm_file *file_priv); | |
1da177e4 | 1284 | |
1da177e4 | 1285 | /* Authentication IOCTL support (drm_auth.h) */ |
c153f45f EA |
1286 | extern int drm_getmagic(struct drm_device *dev, void *data, |
1287 | struct drm_file *file_priv); | |
1288 | extern int drm_authmagic(struct drm_device *dev, void *data, | |
1289 | struct drm_file *file_priv); | |
598781d7 | 1290 | extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic); |
1da177e4 | 1291 | |
673a394b EA |
1292 | /* Cache management (drm_cache.c) */ |
1293 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); | |
9da3da66 | 1294 | void drm_clflush_sg(struct sg_table *st); |
6d5cd9cb | 1295 | void drm_clflush_virt_range(char *addr, unsigned long length); |
673a394b | 1296 | |
1da177e4 | 1297 | /* Locking IOCTL support (drm_lock.h) */ |
c153f45f EA |
1298 | extern int drm_lock(struct drm_device *dev, void *data, |
1299 | struct drm_file *file_priv); | |
1300 | extern int drm_unlock(struct drm_device *dev, void *data, | |
1301 | struct drm_file *file_priv); | |
55910517 DA |
1302 | extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); |
1303 | extern void drm_idlelock_take(struct drm_lock_data *lock_data); | |
1304 | extern void drm_idlelock_release(struct drm_lock_data *lock_data); | |
040ac320 TH |
1305 | |
1306 | /* | |
1307 | * These are exported to drivers so that they can implement fencing using | |
1308 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. | |
1309 | */ | |
1310 | ||
c153f45f | 1311 | extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); |
1da177e4 LT |
1312 | |
1313 | /* Buffer management support (drm_bufs.h) */ | |
84b1fd10 DA |
1314 | extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); |
1315 | extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); | |
41c2e75e | 1316 | extern int drm_addmap(struct drm_device *dev, resource_size_t offset, |
c60ce623 | 1317 | unsigned int size, enum drm_map_type type, |
f77d390c | 1318 | enum drm_map_flags flags, struct drm_local_map **map_ptr); |
c153f45f EA |
1319 | extern int drm_addmap_ioctl(struct drm_device *dev, void *data, |
1320 | struct drm_file *file_priv); | |
f77d390c BH |
1321 | extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); |
1322 | extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); | |
c153f45f EA |
1323 | extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, |
1324 | struct drm_file *file_priv); | |
1325 | extern int drm_addbufs(struct drm_device *dev, void *data, | |
1326 | struct drm_file *file_priv); | |
1327 | extern int drm_infobufs(struct drm_device *dev, void *data, | |
1328 | struct drm_file *file_priv); | |
1329 | extern int drm_markbufs(struct drm_device *dev, void *data, | |
1330 | struct drm_file *file_priv); | |
1331 | extern int drm_freebufs(struct drm_device *dev, void *data, | |
1332 | struct drm_file *file_priv); | |
1333 | extern int drm_mapbufs(struct drm_device *dev, void *data, | |
1334 | struct drm_file *file_priv); | |
6eb9278a DV |
1335 | extern int drm_dma_ioctl(struct drm_device *dev, void *data, |
1336 | struct drm_file *file_priv); | |
1da177e4 LT |
1337 | |
1338 | /* DMA support (drm_dma.h) */ | |
e2e99a82 DV |
1339 | extern int drm_legacy_dma_setup(struct drm_device *dev); |
1340 | extern void drm_legacy_dma_takedown(struct drm_device *dev); | |
056219e2 | 1341 | extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); |
6c340eac EA |
1342 | extern void drm_core_reclaim_buffers(struct drm_device *dev, |
1343 | struct drm_file *filp); | |
1da177e4 LT |
1344 | |
1345 | /* IRQ support (drm_irq.h) */ | |
c153f45f EA |
1346 | extern int drm_control(struct drm_device *dev, void *data, |
1347 | struct drm_file *file_priv); | |
dbb19d30 | 1348 | extern int drm_irq_install(struct drm_device *dev); |
84b1fd10 | 1349 | extern int drm_irq_uninstall(struct drm_device *dev); |
b5e89ed5 | 1350 | |
0a3e67a4 | 1351 | extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); |
af6061af | 1352 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
0a3e67a4 | 1353 | struct drm_file *filp); |
0a3e67a4 | 1354 | extern u32 drm_vblank_count(struct drm_device *dev, int crtc); |
27641c3f MK |
1355 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, |
1356 | struct timeval *vblanktime); | |
c6eefa17 RC |
1357 | extern void drm_send_vblank_event(struct drm_device *dev, int crtc, |
1358 | struct drm_pending_vblank_event *e); | |
78c6e170 | 1359 | extern bool drm_handle_vblank(struct drm_device *dev, int crtc); |
0a3e67a4 JB |
1360 | extern int drm_vblank_get(struct drm_device *dev, int crtc); |
1361 | extern void drm_vblank_put(struct drm_device *dev, int crtc); | |
778c9026 | 1362 | extern void drm_vblank_off(struct drm_device *dev, int crtc); |
52440211 | 1363 | extern void drm_vblank_cleanup(struct drm_device *dev); |
27641c3f MK |
1364 | extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, |
1365 | struct timeval *tvblank, unsigned flags); | |
1366 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, | |
1367 | int crtc, int *max_error, | |
1368 | struct timeval *vblank_time, | |
1369 | unsigned flags, | |
7da903ef VS |
1370 | const struct drm_crtc *refcrtc, |
1371 | const struct drm_display_mode *mode); | |
545cdd55 VS |
1372 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, |
1373 | const struct drm_display_mode *mode); | |
27641c3f | 1374 | |
ebc64e45 | 1375 | |
0a3e67a4 | 1376 | /* Modesetting support */ |
f453ba04 DA |
1377 | extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); |
1378 | extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); | |
0a3e67a4 JB |
1379 | extern int drm_modeset_ctl(struct drm_device *dev, void *data, |
1380 | struct drm_file *file_priv); | |
1da177e4 LT |
1381 | |
1382 | /* AGP/GART support (drm_agpsupport.h) */ | |
00fd78e5 DH |
1383 | |
1384 | #include <drm/drm_agpsupport.h> | |
1da177e4 LT |
1385 | |
1386 | /* Stub support (drm_stub.h) */ | |
7c1c2871 DA |
1387 | extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
1388 | struct drm_file *file_priv); | |
1389 | extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, | |
1390 | struct drm_file *file_priv); | |
1391 | struct drm_master *drm_master_create(struct drm_minor *minor); | |
1392 | extern struct drm_master *drm_master_get(struct drm_master *master); | |
1393 | extern void drm_master_put(struct drm_master **master); | |
8410ea3b | 1394 | |
112b715e | 1395 | extern void drm_put_dev(struct drm_device *dev); |
2c07a21d | 1396 | extern void drm_unplug_dev(struct drm_device *dev); |
b5e89ed5 | 1397 | extern unsigned int drm_debug; |
1793126f | 1398 | extern unsigned int drm_rnodes; |
2c14f28b | 1399 | |
27641c3f MK |
1400 | extern unsigned int drm_vblank_offdelay; |
1401 | extern unsigned int drm_timestamp_precision; | |
c61eef72 | 1402 | extern unsigned int drm_timestamp_monotonic; |
27641c3f | 1403 | |
0650fd58 | 1404 | extern struct class *drm_class; |
955b12de | 1405 | extern struct dentry *drm_debugfs_root; |
1da177e4 | 1406 | |
2c14f28b DA |
1407 | extern struct idr drm_minors_idr; |
1408 | ||
f77d390c | 1409 | extern struct drm_local_map *drm_getsarea(struct drm_device *dev); |
da509d7a | 1410 | |
955b12de BG |
1411 | /* Debugfs support */ |
1412 | #if defined(CONFIG_DEBUG_FS) | |
1413 | extern int drm_debugfs_init(struct drm_minor *minor, int minor_id, | |
1414 | struct dentry *root); | |
7d74795b LD |
1415 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
1416 | int count, struct dentry *root, | |
1417 | struct drm_minor *minor); | |
1418 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, | |
1419 | int count, struct drm_minor *minor); | |
955b12de | 1420 | extern int drm_debugfs_cleanup(struct drm_minor *minor); |
66ee52e2 TR |
1421 | #else |
1422 | static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id, | |
1423 | struct dentry *root) | |
1424 | { | |
1425 | return 0; | |
1426 | } | |
1427 | ||
1428 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, | |
1429 | int count, struct dentry *root, | |
1430 | struct drm_minor *minor) | |
1431 | { | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, | |
1436 | int count, struct drm_minor *minor) | |
1437 | { | |
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | static inline int drm_debugfs_cleanup(struct drm_minor *minor) | |
1442 | { | |
1443 | return 0; | |
1444 | } | |
955b12de BG |
1445 | #endif |
1446 | ||
1447 | /* Info file support */ | |
1448 | extern int drm_name_info(struct seq_file *m, void *data); | |
1449 | extern int drm_vm_info(struct seq_file *m, void *data); | |
955b12de BG |
1450 | extern int drm_bufs_info(struct seq_file *m, void *data); |
1451 | extern int drm_vblank_info(struct seq_file *m, void *data); | |
1452 | extern int drm_clients_info(struct seq_file *m, void* data); | |
1453 | extern int drm_gem_name_info(struct seq_file *m, void *data); | |
955b12de | 1454 | |
3248877e | 1455 | |
89177644 AP |
1456 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
1457 | struct drm_gem_object *obj, int flags); | |
3248877e DA |
1458 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
1459 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, | |
1460 | int *prime_fd); | |
89177644 AP |
1461 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
1462 | struct dma_buf *dma_buf); | |
3248877e DA |
1463 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
1464 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); | |
c1d6798d | 1465 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
3248877e DA |
1466 | |
1467 | extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, | |
1468 | struct drm_file *file_priv); | |
1469 | extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, | |
1470 | struct drm_file *file_priv); | |
1471 | ||
51ab7ba2 DA |
1472 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
1473 | dma_addr_t *addrs, int max_pages); | |
3248877e DA |
1474 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages); |
1475 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); | |
1476 | ||
43387b37 DV |
1477 | int drm_gem_dumb_destroy(struct drm_file *file, |
1478 | struct drm_device *dev, | |
1479 | uint32_t handle); | |
3248877e DA |
1480 | |
1481 | void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); | |
1482 | void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); | |
d0b2c533 | 1483 | void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); |
3248877e | 1484 | |
955b12de BG |
1485 | #if DRM_DEBUG_CODE |
1486 | extern int drm_vma_info(struct seq_file *m, void *data); | |
1487 | #endif | |
1488 | ||
1da177e4 | 1489 | /* Scatter Gather Support (drm_scatter.h) */ |
3d914e83 | 1490 | extern void drm_legacy_sg_cleanup(struct drm_device *dev); |
1d8d29cf | 1491 | extern int drm_sg_alloc(struct drm_device *dev, void *data, |
c153f45f | 1492 | struct drm_file *file_priv); |
c153f45f EA |
1493 | extern int drm_sg_free(struct drm_device *dev, void *data, |
1494 | struct drm_file *file_priv); | |
1da177e4 | 1495 | |
b5e89ed5 | 1496 | /* ATI PCIGART support (ati_pcigart.h) */ |
84b1fd10 | 1497 | extern int drm_ati_pcigart_init(struct drm_device *dev, |
55910517 | 1498 | struct drm_ati_pcigart_info * gart_info); |
84b1fd10 | 1499 | extern int drm_ati_pcigart_cleanup(struct drm_device *dev, |
55910517 | 1500 | struct drm_ati_pcigart_info * gart_info); |
1da177e4 | 1501 | |
84b1fd10 | 1502 | extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, |
e6be8d9d | 1503 | size_t align); |
84b1fd10 DA |
1504 | extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); |
1505 | extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); | |
1da177e4 LT |
1506 | |
1507 | /* sysfs support (drm_sysfs.c) */ | |
e8b962b6 | 1508 | struct drm_sysfs_class; |
0650fd58 | 1509 | extern struct class *drm_sysfs_create(struct module *owner, char *name); |
e8b962b6 | 1510 | extern void drm_sysfs_destroy(void); |
2c14f28b | 1511 | extern int drm_sysfs_device_add(struct drm_minor *minor); |
f453ba04 | 1512 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
2c14f28b | 1513 | extern void drm_sysfs_device_remove(struct drm_minor *minor); |
f453ba04 DA |
1514 | extern int drm_sysfs_connector_add(struct drm_connector *connector); |
1515 | extern void drm_sysfs_connector_remove(struct drm_connector *connector); | |
1da177e4 | 1516 | |
673a394b EA |
1517 | /* Graphics Execution Manager library functions (drm_gem.c) */ |
1518 | int drm_gem_init(struct drm_device *dev); | |
a2c0a97b | 1519 | void drm_gem_destroy(struct drm_device *dev); |
fd632aa3 | 1520 | void drm_gem_object_release(struct drm_gem_object *obj); |
673a394b | 1521 | void drm_gem_object_free(struct kref *kref); |
1d397043 DV |
1522 | int drm_gem_object_init(struct drm_device *dev, |
1523 | struct drm_gem_object *obj, size_t size); | |
89c8233f DH |
1524 | void drm_gem_private_object_init(struct drm_device *dev, |
1525 | struct drm_gem_object *obj, size_t size); | |
ab00b3e5 JB |
1526 | void drm_gem_vm_open(struct vm_area_struct *vma); |
1527 | void drm_gem_vm_close(struct vm_area_struct *vma); | |
1c5aafa6 LP |
1528 | int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, |
1529 | struct vm_area_struct *vma); | |
a2c0a97b | 1530 | int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
673a394b | 1531 | |
a1ce3928 | 1532 | #include <drm/drm_global.h> |
ba4420c2 | 1533 | |
673a394b EA |
1534 | static inline void |
1535 | drm_gem_object_reference(struct drm_gem_object *obj) | |
1536 | { | |
1537 | kref_get(&obj->refcount); | |
1538 | } | |
1539 | ||
1540 | static inline void | |
1541 | drm_gem_object_unreference(struct drm_gem_object *obj) | |
1542 | { | |
c3ae90c0 LB |
1543 | if (obj != NULL) |
1544 | kref_put(&obj->refcount, drm_gem_object_free); | |
1545 | } | |
673a394b | 1546 | |
c3ae90c0 LB |
1547 | static inline void |
1548 | drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) | |
1549 | { | |
7fc65eb7 | 1550 | if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) { |
39b4d07a | 1551 | struct drm_device *dev = obj->dev; |
7fc65eb7 | 1552 | |
39b4d07a | 1553 | mutex_lock(&dev->struct_mutex); |
7fc65eb7 CW |
1554 | if (likely(atomic_dec_and_test(&obj->refcount.refcount))) |
1555 | drm_gem_object_free(&obj->refcount); | |
39b4d07a CW |
1556 | mutex_unlock(&dev->struct_mutex); |
1557 | } | |
673a394b EA |
1558 | } |
1559 | ||
20228c44 DV |
1560 | int drm_gem_handle_create_tail(struct drm_file *file_priv, |
1561 | struct drm_gem_object *obj, | |
1562 | u32 *handlep); | |
673a394b EA |
1563 | int drm_gem_handle_create(struct drm_file *file_priv, |
1564 | struct drm_gem_object *obj, | |
a1a2d1d3 | 1565 | u32 *handlep); |
ff72145b | 1566 | int drm_gem_handle_delete(struct drm_file *filp, u32 handle); |
673a394b | 1567 | |
c3ae90c0 | 1568 | |
75ef8b3b RC |
1569 | void drm_gem_free_mmap_offset(struct drm_gem_object *obj); |
1570 | int drm_gem_create_mmap_offset(struct drm_gem_object *obj); | |
367bbd49 | 1571 | int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size); |
75ef8b3b | 1572 | |
bcc5c9d5 RC |
1573 | struct page **drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask); |
1574 | void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages, | |
1575 | bool dirty, bool accessed); | |
1576 | ||
673a394b EA |
1577 | struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, |
1578 | struct drm_file *filp, | |
a1a2d1d3 | 1579 | u32 handle); |
673a394b EA |
1580 | int drm_gem_close_ioctl(struct drm_device *dev, void *data, |
1581 | struct drm_file *file_priv); | |
1582 | int drm_gem_flink_ioctl(struct drm_device *dev, void *data, | |
1583 | struct drm_file *file_priv); | |
1584 | int drm_gem_open_ioctl(struct drm_device *dev, void *data, | |
1585 | struct drm_file *file_priv); | |
1586 | void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); | |
1587 | void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); | |
1588 | ||
f77d390c BH |
1589 | extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); |
1590 | extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); | |
1591 | extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); | |
1da177e4 | 1592 | |
f77d390c BH |
1593 | static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, |
1594 | unsigned int token) | |
1da177e4 | 1595 | { |
55910517 | 1596 | struct drm_map_list *_entry; |
bd1b331f | 1597 | list_for_each_entry(_entry, &dev->maplist, head) |
b5e89ed5 DA |
1598 | if (_entry->user_token == token) |
1599 | return _entry->map; | |
1da177e4 LT |
1600 | return NULL; |
1601 | } | |
1602 | ||
8410ea3b | 1603 | static __inline__ void drm_core_dropmap(struct drm_local_map *map) |
cda17380 | 1604 | { |
8410ea3b DA |
1605 | } |
1606 | ||
a1ce3928 | 1607 | #include <drm/drm_mem_util.h> |
dcdb1674 | 1608 | |
1bb72532 DH |
1609 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
1610 | struct device *parent); | |
099d1c29 DH |
1611 | void drm_dev_ref(struct drm_device *dev); |
1612 | void drm_dev_unref(struct drm_device *dev); | |
c22f0ace | 1613 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
c3a49737 | 1614 | void drm_dev_unregister(struct drm_device *dev); |
1616c525 DH |
1615 | |
1616 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); | |
1617 | void drm_minor_release(struct drm_minor *minor); | |
1618 | ||
8410ea3b DA |
1619 | /*@}*/ |
1620 | ||
1621 | /* PCI section */ | |
1622 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) | |
1623 | { | |
b5e89ed5 DA |
1624 | if (dev->driver->device_is_agp != NULL) { |
1625 | int err = (*dev->driver->device_is_agp) (dev); | |
1626 | ||
cda17380 DA |
1627 | if (err != 2) { |
1628 | return err; | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); | |
1633 | } | |
4efafebe | 1634 | void drm_pci_agp_destroy(struct drm_device *dev); |
cda17380 | 1635 | |
8410ea3b DA |
1636 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
1637 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); | |
1638 | extern int drm_get_pci_dev(struct pci_dev *pdev, | |
dcdb1674 JC |
1639 | const struct pci_device_id *ent, |
1640 | struct drm_driver *driver); | |
8410ea3b | 1641 | |
f4297784 DA |
1642 | #define DRM_PCIE_SPEED_25 1 |
1643 | #define DRM_PCIE_SPEED_50 2 | |
1644 | #define DRM_PCIE_SPEED_80 4 | |
1645 | ||
1646 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); | |
8410ea3b DA |
1647 | |
1648 | /* platform section */ | |
1649 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); | |
8410ea3b | 1650 | |
cc1f7194 DA |
1651 | /* returns true if currently okay to sleep */ |
1652 | static __inline__ bool drm_can_sleep(void) | |
1653 | { | |
1654 | if (in_atomic() || in_dbg_master() || irqs_disabled()) | |
1655 | return false; | |
1656 | return true; | |
1657 | } | |
1658 | ||
b5e89ed5 | 1659 | #endif /* __KERNEL__ */ |
1da177e4 | 1660 | #endif |