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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. | |
12 | * All rights reserved. | |
13 | * | |
14 | * Permission is hereby granted, free of charge, to any person obtaining a | |
15 | * copy of this software and associated documentation files (the "Software"), | |
16 | * to deal in the Software without restriction, including without limitation | |
17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
18 | * and/or sell copies of the Software, and to permit persons to whom the | |
19 | * Software is furnished to do so, subject to the following conditions: | |
20 | * | |
21 | * The above copyright notice and this permission notice (including the next | |
22 | * paragraph) shall be included in all copies or substantial portions of the | |
23 | * Software. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
28 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
31 | * OTHER DEALINGS IN THE SOFTWARE. | |
32 | */ | |
33 | ||
34 | #ifndef _DRM_P_H_ | |
35 | #define _DRM_P_H_ | |
36 | ||
37 | /* If you want the memory alloc debug functionality, change define below */ | |
38 | /* #define DEBUG_MEMORY */ | |
39 | ||
40 | #ifdef __KERNEL__ | |
41 | #ifdef __alpha__ | |
42 | /* add include of current.h so that "current" is defined | |
43 | * before static inline funcs in wait.h. Doing this so we | |
44 | * can build the DRM (part of PI DRI). 4/21/2000 S + B */ | |
45 | #include <asm/current.h> | |
b5e89ed5 | 46 | #endif /* __alpha__ */ |
1da177e4 LT |
47 | #include <linux/module.h> |
48 | #include <linux/kernel.h> | |
49 | #include <linux/miscdevice.h> | |
50 | #include <linux/fs.h> | |
51 | #include <linux/proc_fs.h> | |
52 | #include <linux/init.h> | |
53 | #include <linux/file.h> | |
54 | #include <linux/pci.h> | |
1da177e4 LT |
55 | #include <linux/jiffies.h> |
56 | #include <linux/smp_lock.h> /* For (un)lock_kernel */ | |
57 | #include <linux/mm.h> | |
58 | #include <linux/cdev.h> | |
30e2fb18 | 59 | #include <linux/mutex.h> |
1da177e4 | 60 | #if defined(__alpha__) || defined(__powerpc__) |
b5e89ed5 | 61 | #include <asm/pgtable.h> /* For pte_wrprotect */ |
1da177e4 LT |
62 | #endif |
63 | #include <asm/io.h> | |
64 | #include <asm/mman.h> | |
65 | #include <asm/uaccess.h> | |
66 | #ifdef CONFIG_MTRR | |
67 | #include <asm/mtrr.h> | |
68 | #endif | |
69 | #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) | |
70 | #include <linux/types.h> | |
71 | #include <linux/agp_backend.h> | |
72 | #endif | |
73 | #include <linux/workqueue.h> | |
74 | #include <linux/poll.h> | |
75 | #include <asm/pgalloc.h> | |
76 | #include "drm.h" | |
77 | ||
78 | #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) | |
79 | #define __OS_HAS_MTRR (defined(CONFIG_MTRR)) | |
80 | ||
81 | #include "drm_os_linux.h" | |
3a1bd924 | 82 | #include "drm_hashtab.h" |
1da177e4 LT |
83 | |
84 | /***********************************************************************/ | |
85 | /** \name DRM template customization defaults */ | |
86 | /*@{*/ | |
87 | ||
88 | /* driver capabilities and requirements mask */ | |
89 | #define DRIVER_USE_AGP 0x1 | |
90 | #define DRIVER_REQUIRE_AGP 0x2 | |
91 | #define DRIVER_USE_MTRR 0x4 | |
92 | #define DRIVER_PCI_DMA 0x8 | |
93 | #define DRIVER_SG 0x10 | |
94 | #define DRIVER_HAVE_DMA 0x20 | |
95 | #define DRIVER_HAVE_IRQ 0x40 | |
96 | #define DRIVER_IRQ_SHARED 0x80 | |
97 | #define DRIVER_IRQ_VBL 0x100 | |
98 | #define DRIVER_DMA_QUEUE 0x200 | |
b84397d6 | 99 | #define DRIVER_FB_DMA 0x400 |
776c9443 | 100 | #define DRIVER_IRQ_VBL2 0x800 |
1da177e4 LT |
101 | |
102 | /***********************************************************************/ | |
103 | /** \name Begin the DRM... */ | |
104 | /*@{*/ | |
105 | ||
106 | #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then | |
107 | also include looping detection. */ | |
108 | ||
8669cbc5 | 109 | #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ |
1da177e4 LT |
110 | #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ |
111 | #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ | |
112 | #define DRM_LOOPING_LIMIT 5000000 | |
1da177e4 LT |
113 | #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ |
114 | #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ | |
115 | ||
116 | #define DRM_FLAG_DEBUG 0x01 | |
117 | ||
118 | #define DRM_MEM_DMA 0 | |
119 | #define DRM_MEM_SAREA 1 | |
120 | #define DRM_MEM_DRIVER 2 | |
121 | #define DRM_MEM_MAGIC 3 | |
122 | #define DRM_MEM_IOCTLS 4 | |
123 | #define DRM_MEM_MAPS 5 | |
124 | #define DRM_MEM_VMAS 6 | |
125 | #define DRM_MEM_BUFS 7 | |
126 | #define DRM_MEM_SEGS 8 | |
127 | #define DRM_MEM_PAGES 9 | |
128 | #define DRM_MEM_FILES 10 | |
129 | #define DRM_MEM_QUEUES 11 | |
130 | #define DRM_MEM_CMDS 12 | |
131 | #define DRM_MEM_MAPPINGS 13 | |
132 | #define DRM_MEM_BUFLISTS 14 | |
133 | #define DRM_MEM_AGPLISTS 15 | |
134 | #define DRM_MEM_TOTALAGP 16 | |
135 | #define DRM_MEM_BOUNDAGP 17 | |
136 | #define DRM_MEM_CTXBITMAP 18 | |
137 | #define DRM_MEM_STUB 19 | |
138 | #define DRM_MEM_SGLISTS 20 | |
3a1bd924 TH |
139 | #define DRM_MEM_CTXLIST 21 |
140 | #define DRM_MEM_MM 22 | |
141 | #define DRM_MEM_HASHTAB 23 | |
1da177e4 LT |
142 | |
143 | #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) | |
8d153f71 | 144 | #define DRM_MAP_HASH_OFFSET 0x10000000 |
1da177e4 | 145 | |
b5e89ed5 | 146 | /*@}*/ |
1da177e4 | 147 | |
1da177e4 LT |
148 | /***********************************************************************/ |
149 | /** \name Macros to make printk easier */ | |
150 | /*@{*/ | |
151 | ||
152 | /** | |
153 | * Error output. | |
154 | * | |
155 | * \param fmt printf() like format string. | |
156 | * \param arg arguments | |
157 | */ | |
158 | #define DRM_ERROR(fmt, arg...) \ | |
159 | printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg) | |
160 | ||
161 | /** | |
162 | * Memory error output. | |
163 | * | |
164 | * \param area memory area where the error occurred. | |
165 | * \param fmt printf() like format string. | |
166 | * \param arg arguments | |
167 | */ | |
168 | #define DRM_MEM_ERROR(area, fmt, arg...) \ | |
169 | printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \ | |
170 | drm_mem_stats[area].name , ##arg) | |
171 | ||
172 | #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg) | |
173 | ||
174 | /** | |
175 | * Debug output. | |
b5e89ed5 | 176 | * |
1da177e4 LT |
177 | * \param fmt printf() like format string. |
178 | * \param arg arguments | |
179 | */ | |
180 | #if DRM_DEBUG_CODE | |
181 | #define DRM_DEBUG(fmt, arg...) \ | |
182 | do { \ | |
183 | if ( drm_debug ) \ | |
184 | printk(KERN_DEBUG \ | |
185 | "[" DRM_NAME ":%s] " fmt , \ | |
186 | __FUNCTION__ , ##arg); \ | |
187 | } while (0) | |
188 | #else | |
189 | #define DRM_DEBUG(fmt, arg...) do { } while (0) | |
190 | #endif | |
191 | ||
192 | #define DRM_PROC_LIMIT (PAGE_SIZE-80) | |
193 | ||
194 | #define DRM_PROC_PRINT(fmt, arg...) \ | |
195 | len += sprintf(&buf[len], fmt , ##arg); \ | |
196 | if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; } | |
197 | ||
198 | #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \ | |
199 | len += sprintf(&buf[len], fmt , ##arg); \ | |
200 | if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; } | |
201 | ||
202 | /*@}*/ | |
203 | ||
1da177e4 LT |
204 | /***********************************************************************/ |
205 | /** \name Internal types and structures */ | |
206 | /*@{*/ | |
207 | ||
99a2657a | 208 | #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) |
1da177e4 LT |
209 | |
210 | #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) | |
211 | #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) | |
212 | #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist) | |
213 | ||
214 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) | |
215 | /** | |
216 | * Get the private SAREA mapping. | |
217 | * | |
218 | * \param _dev DRM device. | |
219 | * \param _ctx context number. | |
220 | * \param _map output mapping. | |
221 | */ | |
222 | #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ | |
223 | (_map) = (_dev)->context_sareas[_ctx]; \ | |
224 | } while(0) | |
225 | ||
226 | /** | |
227 | * Test that the hardware lock is held by the caller, returning otherwise. | |
228 | * | |
229 | * \param dev DRM device. | |
230 | * \param filp file pointer of the caller. | |
231 | */ | |
232 | #define LOCK_TEST_WITH_RETURN( dev, filp ) \ | |
233 | do { \ | |
234 | if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \ | |
235 | dev->lock.filp != filp ) { \ | |
236 | DRM_ERROR( "%s called without lock held\n", \ | |
237 | __FUNCTION__ ); \ | |
238 | return -EINVAL; \ | |
239 | } \ | |
240 | } while (0) | |
241 | ||
242 | /** | |
243 | * Copy and IOCTL return string to user space | |
244 | */ | |
245 | #define DRM_COPY( name, value ) \ | |
246 | len = strlen( value ); \ | |
247 | if ( len > name##_len ) len = name##_len; \ | |
248 | name##_len = strlen( value ); \ | |
249 | if ( len && name ) { \ | |
250 | if ( copy_to_user( name, value, len ) ) \ | |
251 | return -EFAULT; \ | |
252 | } | |
b5e89ed5 | 253 | |
1da177e4 LT |
254 | /** |
255 | * Ioctl function type. | |
256 | * | |
257 | * \param inode device inode. | |
258 | * \param filp file pointer. | |
259 | * \param cmd command. | |
260 | * \param arg argument. | |
261 | */ | |
b5e89ed5 DA |
262 | typedef int drm_ioctl_t(struct inode *inode, struct file *filp, |
263 | unsigned int cmd, unsigned long arg); | |
1da177e4 | 264 | |
9a186645 DA |
265 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
266 | unsigned long arg); | |
267 | ||
a7a2cc31 DA |
268 | #define DRM_AUTH 0x1 |
269 | #define DRM_MASTER 0x2 | |
270 | #define DRM_ROOT_ONLY 0x4 | |
271 | ||
1da177e4 | 272 | typedef struct drm_ioctl_desc { |
b5e89ed5 | 273 | drm_ioctl_t *func; |
a7a2cc31 | 274 | int flags; |
1da177e4 LT |
275 | } drm_ioctl_desc_t; |
276 | ||
277 | typedef struct drm_devstate { | |
b5e89ed5 | 278 | pid_t owner; /**< X server pid holding x_lock */ |
1da177e4 LT |
279 | } drm_devstate_t; |
280 | ||
281 | typedef struct drm_magic_entry { | |
8669cbc5 | 282 | struct list_head head; |
bd1b331f | 283 | drm_hash_item_t hash_item; |
b5e89ed5 | 284 | struct drm_file *priv; |
1da177e4 LT |
285 | struct drm_magic_entry *next; |
286 | } drm_magic_entry_t; | |
287 | ||
1da177e4 | 288 | typedef struct drm_vma_entry { |
bd1b331f | 289 | struct list_head head; |
1da177e4 | 290 | struct vm_area_struct *vma; |
b5e89ed5 | 291 | pid_t pid; |
1da177e4 LT |
292 | } drm_vma_entry_t; |
293 | ||
294 | /** | |
295 | * DMA buffer. | |
296 | */ | |
297 | typedef struct drm_buf { | |
b5e89ed5 DA |
298 | int idx; /**< Index into master buflist */ |
299 | int total; /**< Buffer size */ | |
300 | int order; /**< log-base-2(total) */ | |
301 | int used; /**< Amount of buffer in use (for DMA) */ | |
302 | unsigned long offset; /**< Byte offset (used internally) */ | |
303 | void *address; /**< Address of buffer */ | |
304 | unsigned long bus_address; /**< Bus address of buffer */ | |
305 | struct drm_buf *next; /**< Kernel-only: used for free list */ | |
306 | __volatile__ int waiting; /**< On kernel DMA queue */ | |
307 | __volatile__ int pending; /**< On hardware DMA queue */ | |
1da177e4 | 308 | wait_queue_head_t dma_wait; /**< Processes waiting */ |
b5e89ed5 DA |
309 | struct file *filp; /**< Pointer to holding file descr */ |
310 | int context; /**< Kernel queue for this buffer */ | |
311 | int while_locked; /**< Dispatch this buffer while locked */ | |
1da177e4 | 312 | enum { |
b5e89ed5 DA |
313 | DRM_LIST_NONE = 0, |
314 | DRM_LIST_FREE = 1, | |
315 | DRM_LIST_WAIT = 2, | |
316 | DRM_LIST_PEND = 3, | |
317 | DRM_LIST_PRIO = 4, | |
1da177e4 | 318 | DRM_LIST_RECLAIM = 5 |
b5e89ed5 | 319 | } list; /**< Which list we're on */ |
1da177e4 | 320 | |
b5e89ed5 DA |
321 | int dev_priv_size; /**< Size of buffer private storage */ |
322 | void *dev_private; /**< Per-buffer private storage */ | |
1da177e4 LT |
323 | } drm_buf_t; |
324 | ||
1da177e4 LT |
325 | /** bufs is one longer than it has to be */ |
326 | typedef struct drm_waitlist { | |
b5e89ed5 DA |
327 | int count; /**< Number of possible buffers */ |
328 | drm_buf_t **bufs; /**< List of pointers to buffers */ | |
329 | drm_buf_t **rp; /**< Read pointer */ | |
330 | drm_buf_t **wp; /**< Write pointer */ | |
331 | drm_buf_t **end; /**< End pointer */ | |
332 | spinlock_t read_lock; | |
333 | spinlock_t write_lock; | |
1da177e4 LT |
334 | } drm_waitlist_t; |
335 | ||
336 | typedef struct drm_freelist { | |
b5e89ed5 DA |
337 | int initialized; /**< Freelist in use */ |
338 | atomic_t count; /**< Number of free buffers */ | |
339 | drm_buf_t *next; /**< End pointer */ | |
1da177e4 LT |
340 | |
341 | wait_queue_head_t waiting; /**< Processes waiting on free bufs */ | |
b5e89ed5 DA |
342 | int low_mark; /**< Low water mark */ |
343 | int high_mark; /**< High water mark */ | |
344 | atomic_t wfh; /**< If waiting for high mark */ | |
345 | spinlock_t lock; | |
1da177e4 LT |
346 | } drm_freelist_t; |
347 | ||
ddf19b97 DA |
348 | typedef struct drm_dma_handle { |
349 | dma_addr_t busaddr; | |
350 | void *vaddr; | |
351 | size_t size; | |
352 | } drm_dma_handle_t; | |
353 | ||
1da177e4 LT |
354 | /** |
355 | * Buffer entry. There is one of this for each buffer size order. | |
356 | */ | |
357 | typedef struct drm_buf_entry { | |
b5e89ed5 DA |
358 | int buf_size; /**< size */ |
359 | int buf_count; /**< number of buffers */ | |
360 | drm_buf_t *buflist; /**< buffer list */ | |
361 | int seg_count; | |
362 | int page_order; | |
ddf19b97 | 363 | drm_dma_handle_t **seglist; |
b5e89ed5 DA |
364 | |
365 | drm_freelist_t freelist; | |
1da177e4 LT |
366 | } drm_buf_entry_t; |
367 | ||
368 | /** File private data */ | |
84b1fd10 | 369 | struct drm_file { |
b5e89ed5 | 370 | int authenticated; |
a7a2cc31 | 371 | int master; |
b5e89ed5 DA |
372 | int minor; |
373 | pid_t pid; | |
374 | uid_t uid; | |
375 | drm_magic_t magic; | |
376 | unsigned long ioctl_count; | |
bd1b331f | 377 | struct list_head lhead; |
b5e89ed5 DA |
378 | struct drm_head *head; |
379 | int remove_auth_on_close; | |
380 | unsigned long lock_count; | |
381 | void *driver_priv; | |
84b1fd10 | 382 | }; |
1da177e4 LT |
383 | |
384 | /** Wait queue */ | |
385 | typedef struct drm_queue { | |
b5e89ed5 DA |
386 | atomic_t use_count; /**< Outstanding uses (+1) */ |
387 | atomic_t finalization; /**< Finalization in progress */ | |
388 | atomic_t block_count; /**< Count of processes waiting */ | |
389 | atomic_t block_read; /**< Queue blocked for reads */ | |
1da177e4 | 390 | wait_queue_head_t read_queue; /**< Processes waiting on block_read */ |
b5e89ed5 | 391 | atomic_t block_write; /**< Queue blocked for writes */ |
1da177e4 LT |
392 | wait_queue_head_t write_queue; /**< Processes waiting on block_write */ |
393 | #if 1 | |
b5e89ed5 DA |
394 | atomic_t total_queued; /**< Total queued statistic */ |
395 | atomic_t total_flushed; /**< Total flushes statistic */ | |
396 | atomic_t total_locks; /**< Total locks statistics */ | |
1da177e4 | 397 | #endif |
c60ce623 | 398 | enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ |
b5e89ed5 | 399 | drm_waitlist_t waitlist; /**< Pending buffers */ |
1da177e4 LT |
400 | wait_queue_head_t flush_queue; /**< Processes waiting until flush */ |
401 | } drm_queue_t; | |
402 | ||
403 | /** | |
404 | * Lock data. | |
405 | */ | |
406 | typedef struct drm_lock_data { | |
c60ce623 | 407 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
b5e89ed5 | 408 | struct file *filp; /**< File descr of lock holder (0=kernel) */ |
1da177e4 | 409 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
b5e89ed5 | 410 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
040ac320 TH |
411 | spinlock_t spinlock; |
412 | uint32_t kernel_waiters; | |
413 | uint32_t user_waiters; | |
414 | int idle_has_lock; | |
1da177e4 LT |
415 | } drm_lock_data_t; |
416 | ||
417 | /** | |
418 | * DMA data. | |
419 | */ | |
420 | typedef struct drm_device_dma { | |
421 | ||
b5e89ed5 DA |
422 | drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ |
423 | int buf_count; /**< total number of buffers */ | |
424 | drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */ | |
425 | int seg_count; | |
426 | int page_count; /**< number of pages */ | |
427 | unsigned long *pagelist; /**< page list */ | |
428 | unsigned long byte_count; | |
1da177e4 LT |
429 | enum { |
430 | _DRM_DMA_USE_AGP = 0x01, | |
b5e89ed5 | 431 | _DRM_DMA_USE_SG = 0x02, |
3417f33e GS |
432 | _DRM_DMA_USE_FB = 0x04, |
433 | _DRM_DMA_USE_PCI_RO = 0x08 | |
1da177e4 LT |
434 | } flags; |
435 | ||
436 | } drm_device_dma_t; | |
437 | ||
b5e89ed5 | 438 | /** |
1da177e4 LT |
439 | * AGP memory entry. Stored as a doubly linked list. |
440 | */ | |
441 | typedef struct drm_agp_mem { | |
b5e89ed5 DA |
442 | unsigned long handle; /**< handle */ |
443 | DRM_AGP_MEM *memory; | |
444 | unsigned long bound; /**< address */ | |
445 | int pages; | |
bd1b331f | 446 | struct list_head head; |
1da177e4 LT |
447 | } drm_agp_mem_t; |
448 | ||
449 | /** | |
450 | * AGP data. | |
451 | * | |
452 | * \sa drm_agp_init() and drm_device::agp. | |
453 | */ | |
454 | typedef struct drm_agp_head { | |
b5e89ed5 | 455 | DRM_AGP_KERN agp_info; /**< AGP device information */ |
bd1b331f | 456 | struct list_head memory; |
b5e89ed5 DA |
457 | unsigned long mode; /**< AGP mode */ |
458 | struct agp_bridge_data *bridge; | |
459 | int enabled; /**< whether the AGP bus as been enabled */ | |
460 | int acquired; /**< whether the AGP device has been acquired */ | |
461 | unsigned long base; | |
462 | int agp_mtrr; | |
463 | int cant_use_aperture; | |
464 | unsigned long page_mask; | |
1da177e4 LT |
465 | } drm_agp_head_t; |
466 | ||
467 | /** | |
468 | * Scatter-gather memory. | |
469 | */ | |
470 | typedef struct drm_sg_mem { | |
b5e89ed5 DA |
471 | unsigned long handle; |
472 | void *virtual; | |
473 | int pages; | |
474 | struct page **pagelist; | |
475 | dma_addr_t *busaddr; | |
1da177e4 LT |
476 | } drm_sg_mem_t; |
477 | ||
478 | typedef struct drm_sigdata { | |
b5e89ed5 | 479 | int context; |
c60ce623 | 480 | struct drm_hw_lock *lock; |
1da177e4 LT |
481 | } drm_sigdata_t; |
482 | ||
483 | /** | |
484 | * Mappings list | |
485 | */ | |
486 | typedef struct drm_map_list { | |
b5e89ed5 | 487 | struct list_head head; /**< list head */ |
8d153f71 | 488 | drm_hash_item_t hash; |
c60ce623 | 489 | struct drm_map *map; /**< mapping */ |
d1f2b55a | 490 | unsigned int user_token; |
1da177e4 LT |
491 | } drm_map_list_t; |
492 | ||
c60ce623 | 493 | typedef struct drm_map drm_local_map_t; |
1da177e4 LT |
494 | |
495 | /** | |
496 | * Context handle list | |
497 | */ | |
498 | typedef struct drm_ctx_list { | |
b5e89ed5 DA |
499 | struct list_head head; /**< list head */ |
500 | drm_context_t handle; /**< context handle */ | |
84b1fd10 | 501 | struct drm_file *tag; /**< associated fd private data */ |
1da177e4 LT |
502 | } drm_ctx_list_t; |
503 | ||
1da177e4 | 504 | typedef struct drm_vbl_sig { |
b5e89ed5 DA |
505 | struct list_head head; |
506 | unsigned int sequence; | |
507 | struct siginfo info; | |
508 | struct task_struct *task; | |
1da177e4 LT |
509 | } drm_vbl_sig_t; |
510 | ||
ea98a92f DA |
511 | /* location of GART table */ |
512 | #define DRM_ATI_GART_MAIN 1 | |
513 | #define DRM_ATI_GART_FB 2 | |
514 | ||
f2b04cd2 DA |
515 | #define DRM_ATI_GART_PCI 1 |
516 | #define DRM_ATI_GART_PCIE 2 | |
517 | #define DRM_ATI_GART_IGP 3 | |
518 | ||
ea98a92f DA |
519 | typedef struct ati_pcigart_info { |
520 | int gart_table_location; | |
f2b04cd2 | 521 | int gart_reg_if; |
f26c473c | 522 | void *addr; |
ea98a92f | 523 | dma_addr_t bus_addr; |
f26c473c | 524 | drm_local_map_t mapping; |
f2b04cd2 | 525 | int table_size; |
ea98a92f DA |
526 | } drm_ati_pcigart_info; |
527 | ||
3a1bd924 TH |
528 | /* |
529 | * Generic memory manager structs | |
530 | */ | |
531 | typedef struct drm_mm_node { | |
532 | struct list_head fl_entry; | |
533 | struct list_head ml_entry; | |
534 | int free; | |
535 | unsigned long start; | |
536 | unsigned long size; | |
1d58420b | 537 | struct drm_mm *mm; |
3a1bd924 TH |
538 | void *private; |
539 | } drm_mm_node_t; | |
540 | ||
541 | typedef struct drm_mm { | |
1d58420b TH |
542 | struct list_head fl_entry; |
543 | struct list_head ml_entry; | |
3a1bd924 TH |
544 | } drm_mm_t; |
545 | ||
1da177e4 LT |
546 | /** |
547 | * DRM driver structure. This structure represent the common code for | |
548 | * a family of cards. There will one drm_device for each card present | |
549 | * in this family | |
550 | */ | |
551 | struct drm_device; | |
552 | ||
553 | struct drm_driver { | |
22eae947 DA |
554 | int (*load) (struct drm_device *, unsigned long flags); |
555 | int (*firstopen) (struct drm_device *); | |
84b1fd10 | 556 | int (*open) (struct drm_device *, struct drm_file *); |
22eae947 | 557 | void (*preclose) (struct drm_device *, struct file * filp); |
84b1fd10 | 558 | void (*postclose) (struct drm_device *, struct drm_file *); |
22eae947 DA |
559 | void (*lastclose) (struct drm_device *); |
560 | int (*unload) (struct drm_device *); | |
b5e89ed5 | 561 | int (*dma_ioctl) (DRM_IOCTL_ARGS); |
b5e89ed5 DA |
562 | void (*dma_ready) (struct drm_device *); |
563 | int (*dma_quiescent) (struct drm_device *); | |
84b1fd10 DA |
564 | int (*context_ctor) (struct drm_device *dev, int context); |
565 | int (*context_dtor) (struct drm_device *dev, int context); | |
566 | int (*kernel_context_switch) (struct drm_device *dev, int old, | |
b5e89ed5 | 567 | int new); |
84b1fd10 DA |
568 | void (*kernel_context_switch_unlock) (struct drm_device *dev); |
569 | int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence); | |
570 | int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence); | |
732052ed | 571 | int (*dri_library_name) (struct drm_device *dev, char *buf); |
b5e89ed5 | 572 | |
cda17380 DA |
573 | /** |
574 | * Called by \c drm_device_is_agp. Typically used to determine if a | |
575 | * card is really attached to AGP or not. | |
576 | * | |
577 | * \param dev DRM device handle | |
578 | * | |
579 | * \returns | |
580 | * One of three values is returned depending on whether or not the | |
581 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP | |
582 | * (return of 1), or may or may not be AGP (return of 2). | |
583 | */ | |
84b1fd10 | 584 | int (*device_is_agp) (struct drm_device *dev); |
cda17380 | 585 | |
1da177e4 | 586 | /* these have to be filled in */ |
b5e89ed5 | 587 | |
22eae947 | 588 | irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); |
84b1fd10 DA |
589 | void (*irq_preinstall) (struct drm_device *dev); |
590 | void (*irq_postinstall) (struct drm_device *dev); | |
591 | void (*irq_uninstall) (struct drm_device *dev); | |
592 | void (*reclaim_buffers) (struct drm_device *dev, struct file * filp); | |
d985c108 | 593 | void (*reclaim_buffers_locked) (struct drm_device *dev, |
22eae947 | 594 | struct file *filp); |
040ac320 TH |
595 | void (*reclaim_buffers_idlelocked) (struct drm_device *dev, |
596 | struct file * filp); | |
c60ce623 | 597 | unsigned long (*get_map_ofs) (struct drm_map * map); |
84b1fd10 DA |
598 | unsigned long (*get_reg_ofs) (struct drm_device *dev); |
599 | void (*set_version) (struct drm_device *dev, | |
c60ce623 | 600 | struct drm_set_version *sv); |
22eae947 DA |
601 | |
602 | int major; | |
603 | int minor; | |
604 | int patchlevel; | |
605 | char *name; | |
606 | char *desc; | |
607 | char *date; | |
608 | ||
1da177e4 LT |
609 | u32 driver_features; |
610 | int dev_priv_size; | |
611 | drm_ioctl_desc_t *ioctls; | |
612 | int num_ioctls; | |
613 | struct file_operations fops; | |
614 | struct pci_driver pci_driver; | |
615 | }; | |
616 | ||
617 | /** | |
618 | * DRM head structure. This structure represent a video head on a card | |
619 | * that may contain multiple heads. Embed one per head of these in the | |
620 | * private drm_device structure. | |
621 | */ | |
84b1fd10 | 622 | struct drm_head { |
1da177e4 LT |
623 | int minor; /**< Minor device number */ |
624 | struct drm_device *dev; | |
625 | struct proc_dir_entry *dev_root; /**< proc directory entry */ | |
626 | dev_t device; /**< Device number for mknod */ | |
627 | struct class_device *dev_class; | |
84b1fd10 | 628 | }; |
1da177e4 LT |
629 | |
630 | /** | |
631 | * DRM device structure. This structure represent a complete card that | |
632 | * may contain multiple heads. | |
633 | */ | |
84b1fd10 | 634 | struct drm_device { |
b5e89ed5 DA |
635 | char *unique; /**< Unique identifier: e.g., busid */ |
636 | int unique_len; /**< Length of unique field */ | |
637 | char *devname; /**< For /proc/interrupts */ | |
638 | int if_version; /**< Highest interface version set */ | |
1da177e4 | 639 | |
b5e89ed5 | 640 | int blocked; /**< Blocked due to VC switch? */ |
1da177e4 LT |
641 | |
642 | /** \name Locks */ | |
b5e89ed5 DA |
643 | /*@{ */ |
644 | spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ | |
30e2fb18 | 645 | struct mutex struct_mutex; /**< For others */ |
b5e89ed5 | 646 | /*@} */ |
1da177e4 LT |
647 | |
648 | /** \name Usage Counters */ | |
b5e89ed5 DA |
649 | /*@{ */ |
650 | int open_count; /**< Outstanding files open */ | |
651 | atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ | |
652 | atomic_t vma_count; /**< Outstanding vma areas open */ | |
653 | int buf_use; /**< Buffers in use -- cannot alloc */ | |
654 | atomic_t buf_alloc; /**< Buffer allocation in progress */ | |
655 | /*@} */ | |
1da177e4 LT |
656 | |
657 | /** \name Performance counters */ | |
b5e89ed5 DA |
658 | /*@{ */ |
659 | unsigned long counters; | |
c60ce623 | 660 | enum drm_stat_type types[15]; |
b5e89ed5 DA |
661 | atomic_t counts[15]; |
662 | /*@} */ | |
1da177e4 LT |
663 | |
664 | /** \name Authentication */ | |
b5e89ed5 | 665 | /*@{ */ |
bd1b331f | 666 | struct list_head filelist; |
8669cbc5 TH |
667 | drm_open_hash_t magiclist; /**< magic hash table */ |
668 | struct list_head magicfree; | |
b5e89ed5 | 669 | /*@} */ |
1da177e4 LT |
670 | |
671 | /** \name Memory management */ | |
b5e89ed5 | 672 | /*@{ */ |
bd1b331f | 673 | struct list_head maplist; /**< Linked list of regions */ |
b5e89ed5 | 674 | int map_count; /**< Number of mappable regions */ |
8d153f71 | 675 | drm_open_hash_t map_hash; /**< User token hash table for maps */ |
1da177e4 LT |
676 | |
677 | /** \name Context handle management */ | |
b5e89ed5 | 678 | /*@{ */ |
bd1b331f | 679 | struct list_head ctxlist; /**< Linked list of context handles */ |
b5e89ed5 | 680 | int ctx_count; /**< Number of context handles */ |
30e2fb18 | 681 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1da177e4 | 682 | |
c60ce623 | 683 | struct drm_map **context_sareas; /**< per-context SAREA's */ |
b5e89ed5 | 684 | int max_context; |
1da177e4 | 685 | |
bd1b331f | 686 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
b5e89ed5 DA |
687 | drm_lock_data_t lock; /**< Information on hardware lock */ |
688 | /*@} */ | |
1da177e4 LT |
689 | |
690 | /** \name DMA queues (contexts) */ | |
b5e89ed5 DA |
691 | /*@{ */ |
692 | int queue_count; /**< Number of active DMA queues */ | |
693 | int queue_reserved; /**< Number of reserved DMA queues */ | |
694 | int queue_slots; /**< Actual length of queuelist */ | |
695 | drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */ | |
696 | drm_device_dma_t *dma; /**< Optional pointer for DMA support */ | |
697 | /*@} */ | |
1da177e4 LT |
698 | |
699 | /** \name Context support */ | |
b5e89ed5 DA |
700 | /*@{ */ |
701 | int irq; /**< Interrupt used by board */ | |
702 | int irq_enabled; /**< True if irq handler is enabled */ | |
1da177e4 LT |
703 | __volatile__ long context_flag; /**< Context swapping flag */ |
704 | __volatile__ long interrupt_flag; /**< Interruption handler flag */ | |
705 | __volatile__ long dma_flag; /**< DMA dispatch flag */ | |
706 | struct timer_list timer; /**< Timer for delaying ctx switch */ | |
b5e89ed5 DA |
707 | wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ |
708 | int last_checked; /**< Last context checked for DMA */ | |
709 | int last_context; /**< Last current context */ | |
710 | unsigned long last_switch; /**< jiffies at last context switch */ | |
711 | /*@} */ | |
712 | ||
713 | struct work_struct work; | |
1da177e4 | 714 | /** \name VBLANK IRQ support */ |
b5e89ed5 DA |
715 | /*@{ */ |
716 | ||
717 | wait_queue_head_t vbl_queue; /**< VBLANK wait queue */ | |
718 | atomic_t vbl_received; | |
776c9443 | 719 | atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */ |
b5e89ed5 | 720 | spinlock_t vbl_lock; |
bd1b331f DA |
721 | struct list_head vbl_sigs; /**< signal list to send on VBLANK */ |
722 | struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */ | |
b5e89ed5 | 723 | unsigned int vbl_pending; |
2e54a007 MD |
724 | spinlock_t tasklet_lock; /**< For drm_locked_tasklet */ |
725 | void (*locked_tasklet_func)(struct drm_device *dev); | |
b5e89ed5 DA |
726 | |
727 | /*@} */ | |
728 | cycles_t ctx_start; | |
729 | cycles_t lck_start; | |
730 | ||
1da177e4 LT |
731 | struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */ |
732 | wait_queue_head_t buf_readers; /**< Processes waiting to read */ | |
733 | wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */ | |
734 | ||
b5e89ed5 | 735 | drm_agp_head_t *agp; /**< AGP data */ |
1da177e4 | 736 | |
b5e89ed5 | 737 | struct pci_dev *pdev; /**< PCI device structure */ |
2f02cc3f EA |
738 | int pci_vendor; /**< PCI vendor id */ |
739 | int pci_device; /**< PCI device id */ | |
1da177e4 | 740 | #ifdef __alpha__ |
1da177e4 | 741 | struct pci_controller *hose; |
1da177e4 | 742 | #endif |
b5e89ed5 DA |
743 | drm_sg_mem_t *sg; /**< Scatter gather memory */ |
744 | unsigned long *ctx_bitmap; /**< context bitmap */ | |
745 | void *dev_private; /**< device private data */ | |
746 | drm_sigdata_t sigdata; /**< For block_all_signals */ | |
747 | sigset_t sigmask; | |
748 | ||
749 | struct drm_driver *driver; | |
750 | drm_local_map_t *agp_buffer_map; | |
d1f2b55a | 751 | unsigned int agp_buffer_token; |
84b1fd10 | 752 | struct drm_head primary; /**< primary screen head */ |
bea5679f MD |
753 | |
754 | /** \name Drawable information */ | |
755 | /*@{ */ | |
756 | spinlock_t drw_lock; | |
757 | unsigned int drw_bitfield_length; | |
758 | u32 *drw_bitfield; | |
759 | unsigned int drw_info_length; | |
c60ce623 | 760 | struct drm_drawable_info **drw_info; |
bea5679f | 761 | /*@} */ |
84b1fd10 | 762 | }; |
1da177e4 | 763 | |
b5e89ed5 DA |
764 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
765 | int feature) | |
1da177e4 LT |
766 | { |
767 | return ((dev->driver->driver_features & feature) ? 1 : 0); | |
768 | } | |
769 | ||
33229601 | 770 | #ifdef __alpha__ |
6244270e | 771 | #define drm_get_pci_domain(dev) dev->hose->index |
33229601 | 772 | #else |
9b1a51b6 | 773 | #define drm_get_pci_domain(dev) 0 |
33229601 DA |
774 | #endif |
775 | ||
1da177e4 LT |
776 | #if __OS_HAS_AGP |
777 | static inline int drm_core_has_AGP(struct drm_device *dev) | |
778 | { | |
b5e89ed5 | 779 | return drm_core_check_feature(dev, DRIVER_USE_AGP); |
1da177e4 LT |
780 | } |
781 | #else | |
782 | #define drm_core_has_AGP(dev) (0) | |
783 | #endif | |
784 | ||
785 | #if __OS_HAS_MTRR | |
786 | static inline int drm_core_has_MTRR(struct drm_device *dev) | |
787 | { | |
b5e89ed5 | 788 | return drm_core_check_feature(dev, DRIVER_USE_MTRR); |
1da177e4 | 789 | } |
269dc512 DA |
790 | |
791 | #define DRM_MTRR_WC MTRR_TYPE_WRCOMB | |
792 | ||
793 | static inline int drm_mtrr_add(unsigned long offset, unsigned long size, | |
794 | unsigned int flags) | |
795 | { | |
796 | return mtrr_add(offset, size, flags, 1); | |
797 | } | |
798 | ||
799 | static inline int drm_mtrr_del(int handle, unsigned long offset, | |
800 | unsigned long size, unsigned int flags) | |
801 | { | |
802 | return mtrr_del(handle, offset, size); | |
803 | } | |
804 | ||
1da177e4 LT |
805 | #else |
806 | #define drm_core_has_MTRR(dev) (0) | |
9c7d462e DA |
807 | |
808 | #define DRM_MTRR_WC 0 | |
809 | ||
810 | static inline int drm_mtrr_add(unsigned long offset, unsigned long size, | |
811 | unsigned int flags) | |
812 | { | |
813 | return 0; | |
814 | } | |
815 | ||
816 | static inline int drm_mtrr_del(int handle, unsigned long offset, | |
817 | unsigned long size, unsigned int flags) | |
818 | { | |
819 | return 0; | |
820 | } | |
1da177e4 LT |
821 | #endif |
822 | ||
823 | /******************************************************************/ | |
824 | /** \name Internal function definitions */ | |
825 | /*@{*/ | |
826 | ||
1da177e4 | 827 | /* Driver support (drm_drv.h) */ |
b5e89ed5 DA |
828 | extern int drm_init(struct drm_driver *driver); |
829 | extern void drm_exit(struct drm_driver *driver); | |
830 | extern int drm_ioctl(struct inode *inode, struct file *filp, | |
831 | unsigned int cmd, unsigned long arg); | |
832 | extern long drm_compat_ioctl(struct file *filp, | |
833 | unsigned int cmd, unsigned long arg); | |
84b1fd10 | 834 | extern int drm_lastclose(struct drm_device *dev); |
1da177e4 LT |
835 | |
836 | /* Device support (drm_fops.h) */ | |
b5e89ed5 DA |
837 | extern int drm_open(struct inode *inode, struct file *filp); |
838 | extern int drm_stub_open(struct inode *inode, struct file *filp); | |
b5e89ed5 DA |
839 | extern int drm_fasync(int fd, struct file *filp, int on); |
840 | extern int drm_release(struct inode *inode, struct file *filp); | |
1da177e4 LT |
841 | |
842 | /* Mapping support (drm_vm.h) */ | |
b5e89ed5 DA |
843 | extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); |
844 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); | |
1da177e4 LT |
845 | |
846 | /* Memory management support (drm_memory.h) */ | |
847 | #include "drm_memory.h" | |
b5e89ed5 DA |
848 | extern void drm_mem_init(void); |
849 | extern int drm_mem_info(char *buf, char **start, off_t offset, | |
850 | int request, int *eof, void *data); | |
851 | extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); | |
b5e89ed5 | 852 | |
84b1fd10 | 853 | extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type); |
b5e89ed5 DA |
854 | extern int drm_free_agp(DRM_AGP_MEM * handle, int pages); |
855 | extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); | |
856 | extern int drm_unbind_agp(DRM_AGP_MEM * handle); | |
1da177e4 LT |
857 | |
858 | /* Misc. IOCTL support (drm_ioctl.h) */ | |
b5e89ed5 DA |
859 | extern int drm_irq_by_busid(struct inode *inode, struct file *filp, |
860 | unsigned int cmd, unsigned long arg); | |
861 | extern int drm_getunique(struct inode *inode, struct file *filp, | |
862 | unsigned int cmd, unsigned long arg); | |
863 | extern int drm_setunique(struct inode *inode, struct file *filp, | |
864 | unsigned int cmd, unsigned long arg); | |
865 | extern int drm_getmap(struct inode *inode, struct file *filp, | |
866 | unsigned int cmd, unsigned long arg); | |
867 | extern int drm_getclient(struct inode *inode, struct file *filp, | |
868 | unsigned int cmd, unsigned long arg); | |
869 | extern int drm_getstats(struct inode *inode, struct file *filp, | |
870 | unsigned int cmd, unsigned long arg); | |
871 | extern int drm_setversion(struct inode *inode, struct file *filp, | |
872 | unsigned int cmd, unsigned long arg); | |
d985c108 DA |
873 | extern int drm_noop(struct inode *inode, struct file *filp, |
874 | unsigned int cmd, unsigned long arg); | |
1da177e4 LT |
875 | |
876 | /* Context IOCTL support (drm_context.h) */ | |
b5e89ed5 DA |
877 | extern int drm_resctx(struct inode *inode, struct file *filp, |
878 | unsigned int cmd, unsigned long arg); | |
879 | extern int drm_addctx(struct inode *inode, struct file *filp, | |
880 | unsigned int cmd, unsigned long arg); | |
881 | extern int drm_modctx(struct inode *inode, struct file *filp, | |
882 | unsigned int cmd, unsigned long arg); | |
883 | extern int drm_getctx(struct inode *inode, struct file *filp, | |
884 | unsigned int cmd, unsigned long arg); | |
885 | extern int drm_switchctx(struct inode *inode, struct file *filp, | |
886 | unsigned int cmd, unsigned long arg); | |
887 | extern int drm_newctx(struct inode *inode, struct file *filp, | |
888 | unsigned int cmd, unsigned long arg); | |
889 | extern int drm_rmctx(struct inode *inode, struct file *filp, | |
890 | unsigned int cmd, unsigned long arg); | |
891 | ||
84b1fd10 DA |
892 | extern int drm_ctxbitmap_init(struct drm_device *dev); |
893 | extern void drm_ctxbitmap_cleanup(struct drm_device *dev); | |
894 | extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); | |
b5e89ed5 DA |
895 | |
896 | extern int drm_setsareactx(struct inode *inode, struct file *filp, | |
897 | unsigned int cmd, unsigned long arg); | |
898 | extern int drm_getsareactx(struct inode *inode, struct file *filp, | |
899 | unsigned int cmd, unsigned long arg); | |
1da177e4 LT |
900 | |
901 | /* Drawable IOCTL support (drm_drawable.h) */ | |
b5e89ed5 DA |
902 | extern int drm_adddraw(struct inode *inode, struct file *filp, |
903 | unsigned int cmd, unsigned long arg); | |
904 | extern int drm_rmdraw(struct inode *inode, struct file *filp, | |
905 | unsigned int cmd, unsigned long arg); | |
bea5679f MD |
906 | extern int drm_update_drawable_info(struct inode *inode, struct file *filp, |
907 | unsigned int cmd, unsigned long arg); | |
84b1fd10 | 908 | extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, |
bea5679f | 909 | drm_drawable_t id); |
1da177e4 LT |
910 | |
911 | /* Authentication IOCTL support (drm_auth.h) */ | |
b5e89ed5 DA |
912 | extern int drm_getmagic(struct inode *inode, struct file *filp, |
913 | unsigned int cmd, unsigned long arg); | |
914 | extern int drm_authmagic(struct inode *inode, struct file *filp, | |
915 | unsigned int cmd, unsigned long arg); | |
1da177e4 | 916 | |
1da177e4 | 917 | /* Locking IOCTL support (drm_lock.h) */ |
b5e89ed5 DA |
918 | extern int drm_lock(struct inode *inode, struct file *filp, |
919 | unsigned int cmd, unsigned long arg); | |
920 | extern int drm_unlock(struct inode *inode, struct file *filp, | |
921 | unsigned int cmd, unsigned long arg); | |
040ac320 TH |
922 | extern int drm_lock_take(drm_lock_data_t *lock_data, unsigned int context); |
923 | extern int drm_lock_free(drm_lock_data_t *lock_data, unsigned int context); | |
924 | extern void drm_idlelock_take(drm_lock_data_t *lock_data); | |
925 | extern void drm_idlelock_release(drm_lock_data_t *lock_data); | |
926 | ||
927 | /* | |
928 | * These are exported to drivers so that they can implement fencing using | |
929 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. | |
930 | */ | |
931 | ||
932 | extern int drm_i_have_hw_lock(struct file *filp); | |
933 | extern int drm_kernel_take_hw_lock(struct file *filp); | |
1da177e4 LT |
934 | |
935 | /* Buffer management support (drm_bufs.h) */ | |
84b1fd10 DA |
936 | extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); |
937 | extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); | |
938 | extern int drm_addmap(struct drm_device *dev, unsigned int offset, | |
c60ce623 DA |
939 | unsigned int size, enum drm_map_type type, |
940 | enum drm_map_flags flags, drm_local_map_t ** map_ptr); | |
7ab98401 DA |
941 | extern int drm_addmap_ioctl(struct inode *inode, struct file *filp, |
942 | unsigned int cmd, unsigned long arg); | |
84b1fd10 DA |
943 | extern int drm_rmmap(struct drm_device *dev, drm_local_map_t * map); |
944 | extern int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t * map); | |
7ab98401 DA |
945 | extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp, |
946 | unsigned int cmd, unsigned long arg); | |
947 | ||
b5e89ed5 DA |
948 | extern int drm_order(unsigned long size); |
949 | extern int drm_addbufs(struct inode *inode, struct file *filp, | |
950 | unsigned int cmd, unsigned long arg); | |
951 | extern int drm_infobufs(struct inode *inode, struct file *filp, | |
952 | unsigned int cmd, unsigned long arg); | |
953 | extern int drm_markbufs(struct inode *inode, struct file *filp, | |
954 | unsigned int cmd, unsigned long arg); | |
955 | extern int drm_freebufs(struct inode *inode, struct file *filp, | |
956 | unsigned int cmd, unsigned long arg); | |
957 | extern int drm_mapbufs(struct inode *inode, struct file *filp, | |
958 | unsigned int cmd, unsigned long arg); | |
84b1fd10 | 959 | extern unsigned long drm_get_resource_start(struct drm_device *dev, |
836cf046 | 960 | unsigned int resource); |
84b1fd10 | 961 | extern unsigned long drm_get_resource_len(struct drm_device *dev, |
836cf046 | 962 | unsigned int resource); |
1da177e4 LT |
963 | |
964 | /* DMA support (drm_dma.h) */ | |
84b1fd10 DA |
965 | extern int drm_dma_setup(struct drm_device *dev); |
966 | extern void drm_dma_takedown(struct drm_device *dev); | |
967 | extern void drm_free_buffer(struct drm_device *dev, drm_buf_t * buf); | |
968 | extern void drm_core_reclaim_buffers(struct drm_device *dev, struct file *filp); | |
1da177e4 LT |
969 | |
970 | /* IRQ support (drm_irq.h) */ | |
b5e89ed5 DA |
971 | extern int drm_control(struct inode *inode, struct file *filp, |
972 | unsigned int cmd, unsigned long arg); | |
b5e89ed5 | 973 | extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); |
84b1fd10 DA |
974 | extern int drm_irq_uninstall(struct drm_device *dev); |
975 | extern void drm_driver_irq_preinstall(struct drm_device *dev); | |
976 | extern void drm_driver_irq_postinstall(struct drm_device *dev); | |
977 | extern void drm_driver_irq_uninstall(struct drm_device *dev); | |
b5e89ed5 DA |
978 | |
979 | extern int drm_wait_vblank(struct inode *inode, struct file *filp, | |
980 | unsigned int cmd, unsigned long arg); | |
84b1fd10 DA |
981 | extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); |
982 | extern void drm_vbl_send_signals(struct drm_device *dev); | |
983 | extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*)); | |
1da177e4 LT |
984 | |
985 | /* AGP/GART support (drm_agpsupport.h) */ | |
84b1fd10 DA |
986 | extern drm_agp_head_t *drm_agp_init(struct drm_device *dev); |
987 | extern int drm_agp_acquire(struct drm_device *dev); | |
7ab98401 | 988 | extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 989 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 990 | extern int drm_agp_release(struct drm_device *dev); |
7ab98401 | 991 | extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 992 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 993 | extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); |
7ab98401 | 994 | extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 995 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 996 | extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info * info); |
7ab98401 | 997 | extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 998 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 999 | extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); |
efa58395 | 1000 | extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 1001 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 1002 | extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); |
efa58395 | 1003 | extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp, |
7ab98401 | 1004 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 1005 | extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); |
efa58395 | 1006 | extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 | 1007 | unsigned int cmd, unsigned long arg); |
84b1fd10 | 1008 | extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); |
efa58395 | 1009 | extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp, |
b5e89ed5 DA |
1010 | unsigned int cmd, unsigned long arg); |
1011 | extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, | |
1012 | size_t pages, u32 type); | |
1013 | extern int drm_agp_free_memory(DRM_AGP_MEM * handle); | |
1014 | extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start); | |
1015 | extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle); | |
1da177e4 LT |
1016 | |
1017 | /* Stub support (drm_stub.h) */ | |
1018 | extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, | |
b5e89ed5 | 1019 | struct drm_driver *driver); |
84b1fd10 DA |
1020 | extern int drm_put_dev(struct drm_device *dev); |
1021 | extern int drm_put_head(struct drm_head *head); | |
b5e89ed5 DA |
1022 | extern unsigned int drm_debug; |
1023 | extern unsigned int drm_cards_limit; | |
84b1fd10 | 1024 | extern struct drm_head **drm_heads; |
0650fd58 | 1025 | extern struct class *drm_class; |
1da177e4 LT |
1026 | extern struct proc_dir_entry *drm_proc_root; |
1027 | ||
da509d7a DA |
1028 | extern drm_local_map_t *drm_getsarea(struct drm_device *dev); |
1029 | ||
1da177e4 | 1030 | /* Proc support (drm_proc.h) */ |
84b1fd10 | 1031 | extern int drm_proc_init(struct drm_device *dev, |
b5e89ed5 DA |
1032 | int minor, |
1033 | struct proc_dir_entry *root, | |
1034 | struct proc_dir_entry **dev_root); | |
1035 | extern int drm_proc_cleanup(int minor, | |
1036 | struct proc_dir_entry *root, | |
1037 | struct proc_dir_entry *dev_root); | |
1da177e4 LT |
1038 | |
1039 | /* Scatter Gather Support (drm_scatter.h) */ | |
b5e89ed5 DA |
1040 | extern void drm_sg_cleanup(drm_sg_mem_t * entry); |
1041 | extern int drm_sg_alloc(struct inode *inode, struct file *filp, | |
1042 | unsigned int cmd, unsigned long arg); | |
1043 | extern int drm_sg_free(struct inode *inode, struct file *filp, | |
1044 | unsigned int cmd, unsigned long arg); | |
1da177e4 | 1045 | |
b5e89ed5 | 1046 | /* ATI PCIGART support (ati_pcigart.h) */ |
84b1fd10 | 1047 | extern int drm_ati_pcigart_init(struct drm_device *dev, |
b5e89ed5 | 1048 | drm_ati_pcigart_info * gart_info); |
84b1fd10 | 1049 | extern int drm_ati_pcigart_cleanup(struct drm_device *dev, |
b5e89ed5 | 1050 | drm_ati_pcigart_info * gart_info); |
1da177e4 | 1051 | |
84b1fd10 | 1052 | extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, |
9c8da5eb | 1053 | size_t align, dma_addr_t maxaddr); |
84b1fd10 DA |
1054 | extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); |
1055 | extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); | |
1da177e4 LT |
1056 | |
1057 | /* sysfs support (drm_sysfs.c) */ | |
0650fd58 GKH |
1058 | extern struct class *drm_sysfs_create(struct module *owner, char *name); |
1059 | extern void drm_sysfs_destroy(struct class *cs); | |
1060 | extern struct class_device *drm_sysfs_device_add(struct class *cs, | |
84b1fd10 | 1061 | struct drm_head *head); |
732052ed | 1062 | extern void drm_sysfs_device_remove(struct class_device *class_dev); |
1da177e4 | 1063 | |
3a1bd924 TH |
1064 | /* |
1065 | * Basic memory manager support (drm_mm.c) | |
1066 | */ | |
1067 | extern drm_mm_node_t *drm_mm_get_block(drm_mm_node_t * parent, | |
1068 | unsigned long size, | |
1069 | unsigned alignment); | |
1d58420b | 1070 | void drm_mm_put_block(drm_mm_node_t * cur); |
3a1bd924 TH |
1071 | extern drm_mm_node_t *drm_mm_search_free(const drm_mm_t *mm, unsigned long size, |
1072 | unsigned alignment, int best_match); | |
1073 | extern int drm_mm_init(drm_mm_t *mm, unsigned long start, unsigned long size); | |
1074 | extern void drm_mm_takedown(drm_mm_t *mm); | |
1d58420b TH |
1075 | extern int drm_mm_clean(drm_mm_t *mm); |
1076 | extern unsigned long drm_mm_tail_space(drm_mm_t *mm); | |
1077 | extern int drm_mm_remove_space_from_tail(drm_mm_t *mm, unsigned long size); | |
1078 | extern int drm_mm_add_space_to_tail(drm_mm_t *mm, unsigned long size); | |
3a1bd924 | 1079 | |
004a7727 CH |
1080 | extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev); |
1081 | extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev); | |
1da177e4 | 1082 | |
b5e89ed5 DA |
1083 | static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, |
1084 | unsigned int token) | |
1da177e4 | 1085 | { |
d1f2b55a | 1086 | drm_map_list_t *_entry; |
bd1b331f | 1087 | list_for_each_entry(_entry, &dev->maplist, head) |
b5e89ed5 DA |
1088 | if (_entry->user_token == token) |
1089 | return _entry->map; | |
1da177e4 LT |
1090 | return NULL; |
1091 | } | |
1092 | ||
84b1fd10 | 1093 | static __inline__ int drm_device_is_agp(struct drm_device *dev) |
cda17380 | 1094 | { |
b5e89ed5 DA |
1095 | if (dev->driver->device_is_agp != NULL) { |
1096 | int err = (*dev->driver->device_is_agp) (dev); | |
1097 | ||
cda17380 DA |
1098 | if (err != 2) { |
1099 | return err; | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); | |
1104 | } | |
1105 | ||
84b1fd10 | 1106 | static __inline__ int drm_device_is_pcie(struct drm_device *dev) |
ea98a92f DA |
1107 | { |
1108 | return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); | |
1109 | } | |
1110 | ||
1da177e4 LT |
1111 | static __inline__ void drm_core_dropmap(struct drm_map *map) |
1112 | { | |
1113 | } | |
1114 | ||
1115 | #ifndef DEBUG_MEMORY | |
1116 | /** Wrapper around kmalloc() */ | |
1117 | static __inline__ void *drm_alloc(size_t size, int area) | |
1118 | { | |
1119 | return kmalloc(size, GFP_KERNEL); | |
1120 | } | |
1121 | ||
1122 | /** Wrapper around kfree() */ | |
1123 | static __inline__ void drm_free(void *pt, size_t size, int area) | |
1124 | { | |
1125 | kfree(pt); | |
1126 | } | |
b9523249 DA |
1127 | |
1128 | /** Wrapper around kcalloc() */ | |
1129 | static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area) | |
1130 | { | |
1131 | return kcalloc(nmemb, size, GFP_KERNEL); | |
1132 | } | |
1da177e4 LT |
1133 | #else |
1134 | extern void *drm_alloc(size_t size, int area); | |
1135 | extern void drm_free(void *pt, size_t size, int area); | |
b9523249 | 1136 | extern void *drm_calloc(size_t nmemb, size_t size, int area); |
1da177e4 LT |
1137 | #endif |
1138 | ||
1139 | /*@}*/ | |
1140 | ||
c60ce623 | 1141 | extern unsigned long drm_core_get_map_ofs(struct drm_map * map); |
1da177e4 LT |
1142 | extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev); |
1143 | ||
b5e89ed5 | 1144 | #endif /* __KERNEL__ */ |
1da177e4 | 1145 | #endif |