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1da177e4 LT |
1 | /** |
2 | * \file drmP.h | |
3 | * Private header for Direct Rendering Manager | |
4 | * | |
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> | |
46 | #endif /* __alpha__ */ | |
47 | #include <linux/config.h> | |
48 | #include <linux/module.h> | |
49 | #include <linux/kernel.h> | |
50 | #include <linux/miscdevice.h> | |
51 | #include <linux/fs.h> | |
52 | #include <linux/proc_fs.h> | |
53 | #include <linux/init.h> | |
54 | #include <linux/file.h> | |
55 | #include <linux/pci.h> | |
56 | #include <linux/version.h> | |
57 | #include <linux/jiffies.h> | |
58 | #include <linux/smp_lock.h> /* For (un)lock_kernel */ | |
59 | #include <linux/mm.h> | |
60 | #include <linux/cdev.h> | |
61 | #if defined(__alpha__) || defined(__powerpc__) | |
62 | #include <asm/pgtable.h> /* For pte_wrprotect */ | |
63 | #endif | |
64 | #include <asm/io.h> | |
65 | #include <asm/mman.h> | |
66 | #include <asm/uaccess.h> | |
67 | #ifdef CONFIG_MTRR | |
68 | #include <asm/mtrr.h> | |
69 | #endif | |
70 | #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) | |
71 | #include <linux/types.h> | |
72 | #include <linux/agp_backend.h> | |
73 | #endif | |
74 | #include <linux/workqueue.h> | |
75 | #include <linux/poll.h> | |
76 | #include <asm/pgalloc.h> | |
77 | #include "drm.h" | |
78 | ||
79 | #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) | |
80 | #define __OS_HAS_MTRR (defined(CONFIG_MTRR)) | |
81 | ||
82 | #include "drm_os_linux.h" | |
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 |
1da177e4 LT |
100 | |
101 | /***********************************************************************/ | |
102 | /** \name Begin the DRM... */ | |
103 | /*@{*/ | |
104 | ||
105 | #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then | |
106 | also include looping detection. */ | |
107 | ||
108 | #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */ | |
109 | #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ | |
110 | #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ | |
111 | #define DRM_LOOPING_LIMIT 5000000 | |
112 | #define DRM_BSZ 1024 /**< Buffer size for /dev/drm? output */ | |
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 | |
139 | #define DRM_MEM_CTXLIST 21 | |
140 | ||
141 | #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) | |
142 | ||
143 | /*@}*/ | |
144 | ||
145 | ||
146 | /***********************************************************************/ | |
147 | /** \name Backward compatibility section */ | |
148 | /*@{*/ | |
149 | ||
150 | #ifndef MODULE_LICENSE | |
151 | #define MODULE_LICENSE(x) | |
152 | #endif | |
153 | ||
154 | #ifndef preempt_disable | |
155 | #define preempt_disable() | |
156 | #define preempt_enable() | |
157 | #endif | |
158 | ||
159 | #ifndef pte_offset_map | |
160 | #define pte_offset_map pte_offset | |
161 | #define pte_unmap(pte) | |
162 | #endif | |
163 | ||
164 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19) | |
165 | static inline struct page * vmalloc_to_page(void * vmalloc_addr) | |
166 | { | |
167 | unsigned long addr = (unsigned long) vmalloc_addr; | |
168 | struct page *page = NULL; | |
169 | pgd_t *pgd = pgd_offset_k(addr); | |
170 | pmd_t *pmd; | |
171 | pte_t *ptep, pte; | |
172 | ||
173 | if (!pgd_none(*pgd)) { | |
174 | pmd = pmd_offset(pgd, addr); | |
175 | if (!pmd_none(*pmd)) { | |
176 | preempt_disable(); | |
177 | ptep = pte_offset_map(pmd, addr); | |
178 | pte = *ptep; | |
179 | if (pte_present(pte)) | |
180 | page = pte_page(pte); | |
181 | pte_unmap(ptep); | |
182 | preempt_enable(); | |
183 | } | |
184 | } | |
185 | return page; | |
186 | } | |
187 | #endif | |
188 | ||
189 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) | |
190 | #define DRM_RPR_ARG(vma) | |
191 | #else | |
192 | #define DRM_RPR_ARG(vma) vma, | |
193 | #endif | |
194 | ||
195 | #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT) | |
196 | ||
197 | /*@}*/ | |
198 | ||
199 | ||
200 | /***********************************************************************/ | |
201 | /** \name Macros to make printk easier */ | |
202 | /*@{*/ | |
203 | ||
204 | /** | |
205 | * Error output. | |
206 | * | |
207 | * \param fmt printf() like format string. | |
208 | * \param arg arguments | |
209 | */ | |
210 | #define DRM_ERROR(fmt, arg...) \ | |
211 | printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg) | |
212 | ||
213 | /** | |
214 | * Memory error output. | |
215 | * | |
216 | * \param area memory area where the error occurred. | |
217 | * \param fmt printf() like format string. | |
218 | * \param arg arguments | |
219 | */ | |
220 | #define DRM_MEM_ERROR(area, fmt, arg...) \ | |
221 | printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \ | |
222 | drm_mem_stats[area].name , ##arg) | |
223 | ||
224 | #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg) | |
225 | ||
226 | /** | |
227 | * Debug output. | |
228 | * | |
229 | * \param fmt printf() like format string. | |
230 | * \param arg arguments | |
231 | */ | |
232 | #if DRM_DEBUG_CODE | |
233 | #define DRM_DEBUG(fmt, arg...) \ | |
234 | do { \ | |
235 | if ( drm_debug ) \ | |
236 | printk(KERN_DEBUG \ | |
237 | "[" DRM_NAME ":%s] " fmt , \ | |
238 | __FUNCTION__ , ##arg); \ | |
239 | } while (0) | |
240 | #else | |
241 | #define DRM_DEBUG(fmt, arg...) do { } while (0) | |
242 | #endif | |
243 | ||
244 | #define DRM_PROC_LIMIT (PAGE_SIZE-80) | |
245 | ||
246 | #define DRM_PROC_PRINT(fmt, arg...) \ | |
247 | len += sprintf(&buf[len], fmt , ##arg); \ | |
248 | if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; } | |
249 | ||
250 | #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \ | |
251 | len += sprintf(&buf[len], fmt , ##arg); \ | |
252 | if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; } | |
253 | ||
254 | /*@}*/ | |
255 | ||
256 | ||
257 | /***********************************************************************/ | |
258 | /** \name Internal types and structures */ | |
259 | /*@{*/ | |
260 | ||
261 | #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) | |
262 | #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) | |
263 | #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) | |
264 | ||
265 | #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) | |
266 | #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) | |
267 | #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist) | |
268 | ||
269 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) | |
270 | /** | |
271 | * Get the private SAREA mapping. | |
272 | * | |
273 | * \param _dev DRM device. | |
274 | * \param _ctx context number. | |
275 | * \param _map output mapping. | |
276 | */ | |
277 | #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ | |
278 | (_map) = (_dev)->context_sareas[_ctx]; \ | |
279 | } while(0) | |
280 | ||
281 | /** | |
282 | * Test that the hardware lock is held by the caller, returning otherwise. | |
283 | * | |
284 | * \param dev DRM device. | |
285 | * \param filp file pointer of the caller. | |
286 | */ | |
287 | #define LOCK_TEST_WITH_RETURN( dev, filp ) \ | |
288 | do { \ | |
289 | if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \ | |
290 | dev->lock.filp != filp ) { \ | |
291 | DRM_ERROR( "%s called without lock held\n", \ | |
292 | __FUNCTION__ ); \ | |
293 | return -EINVAL; \ | |
294 | } \ | |
295 | } while (0) | |
296 | ||
297 | /** | |
298 | * Copy and IOCTL return string to user space | |
299 | */ | |
300 | #define DRM_COPY( name, value ) \ | |
301 | len = strlen( value ); \ | |
302 | if ( len > name##_len ) len = name##_len; \ | |
303 | name##_len = strlen( value ); \ | |
304 | if ( len && name ) { \ | |
305 | if ( copy_to_user( name, value, len ) ) \ | |
306 | return -EFAULT; \ | |
307 | } | |
308 | ||
309 | /** | |
310 | * Ioctl function type. | |
311 | * | |
312 | * \param inode device inode. | |
313 | * \param filp file pointer. | |
314 | * \param cmd command. | |
315 | * \param arg argument. | |
316 | */ | |
317 | typedef int drm_ioctl_t( struct inode *inode, struct file *filp, | |
318 | unsigned int cmd, unsigned long arg ); | |
319 | ||
9a186645 DA |
320 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
321 | unsigned long arg); | |
322 | ||
1da177e4 LT |
323 | typedef struct drm_ioctl_desc { |
324 | drm_ioctl_t *func; | |
325 | int auth_needed; | |
326 | int root_only; | |
327 | } drm_ioctl_desc_t; | |
328 | ||
329 | typedef struct drm_devstate { | |
330 | pid_t owner; /**< X server pid holding x_lock */ | |
331 | } drm_devstate_t; | |
332 | ||
333 | typedef struct drm_magic_entry { | |
334 | drm_magic_t magic; | |
335 | struct drm_file *priv; | |
336 | struct drm_magic_entry *next; | |
337 | } drm_magic_entry_t; | |
338 | ||
339 | typedef struct drm_magic_head { | |
340 | struct drm_magic_entry *head; | |
341 | struct drm_magic_entry *tail; | |
342 | } drm_magic_head_t; | |
343 | ||
344 | typedef struct drm_vma_entry { | |
345 | struct vm_area_struct *vma; | |
346 | struct drm_vma_entry *next; | |
347 | pid_t pid; | |
348 | } drm_vma_entry_t; | |
349 | ||
350 | /** | |
351 | * DMA buffer. | |
352 | */ | |
353 | typedef struct drm_buf { | |
354 | int idx; /**< Index into master buflist */ | |
355 | int total; /**< Buffer size */ | |
356 | int order; /**< log-base-2(total) */ | |
357 | int used; /**< Amount of buffer in use (for DMA) */ | |
358 | unsigned long offset; /**< Byte offset (used internally) */ | |
359 | void *address; /**< Address of buffer */ | |
360 | unsigned long bus_address; /**< Bus address of buffer */ | |
361 | struct drm_buf *next; /**< Kernel-only: used for free list */ | |
362 | __volatile__ int waiting; /**< On kernel DMA queue */ | |
363 | __volatile__ int pending; /**< On hardware DMA queue */ | |
364 | wait_queue_head_t dma_wait; /**< Processes waiting */ | |
365 | struct file *filp; /**< Pointer to holding file descr */ | |
366 | int context; /**< Kernel queue for this buffer */ | |
367 | int while_locked;/**< Dispatch this buffer while locked */ | |
368 | enum { | |
369 | DRM_LIST_NONE = 0, | |
370 | DRM_LIST_FREE = 1, | |
371 | DRM_LIST_WAIT = 2, | |
372 | DRM_LIST_PEND = 3, | |
373 | DRM_LIST_PRIO = 4, | |
374 | DRM_LIST_RECLAIM = 5 | |
375 | } list; /**< Which list we're on */ | |
376 | ||
377 | int dev_priv_size; /**< Size of buffer private storage */ | |
378 | void *dev_private; /**< Per-buffer private storage */ | |
379 | } drm_buf_t; | |
380 | ||
381 | ||
382 | /** bufs is one longer than it has to be */ | |
383 | typedef struct drm_waitlist { | |
384 | int count; /**< Number of possible buffers */ | |
385 | drm_buf_t **bufs; /**< List of pointers to buffers */ | |
386 | drm_buf_t **rp; /**< Read pointer */ | |
387 | drm_buf_t **wp; /**< Write pointer */ | |
388 | drm_buf_t **end; /**< End pointer */ | |
389 | spinlock_t read_lock; | |
390 | spinlock_t write_lock; | |
391 | } drm_waitlist_t; | |
392 | ||
393 | typedef struct drm_freelist { | |
394 | int initialized; /**< Freelist in use */ | |
395 | atomic_t count; /**< Number of free buffers */ | |
396 | drm_buf_t *next; /**< End pointer */ | |
397 | ||
398 | wait_queue_head_t waiting; /**< Processes waiting on free bufs */ | |
399 | int low_mark; /**< Low water mark */ | |
400 | int high_mark; /**< High water mark */ | |
401 | atomic_t wfh; /**< If waiting for high mark */ | |
402 | spinlock_t lock; | |
403 | } drm_freelist_t; | |
404 | ||
405 | /** | |
406 | * Buffer entry. There is one of this for each buffer size order. | |
407 | */ | |
408 | typedef struct drm_buf_entry { | |
409 | int buf_size; /**< size */ | |
410 | int buf_count; /**< number of buffers */ | |
411 | drm_buf_t *buflist; /**< buffer list */ | |
412 | int seg_count; | |
413 | int page_order; | |
414 | unsigned long *seglist; | |
415 | ||
416 | drm_freelist_t freelist; | |
417 | } drm_buf_entry_t; | |
418 | ||
419 | /** File private data */ | |
420 | typedef struct drm_file { | |
421 | int authenticated; | |
422 | int minor; | |
423 | pid_t pid; | |
424 | uid_t uid; | |
425 | drm_magic_t magic; | |
426 | unsigned long ioctl_count; | |
427 | struct drm_file *next; | |
428 | struct drm_file *prev; | |
429 | struct drm_head *head; | |
430 | int remove_auth_on_close; | |
431 | unsigned long lock_count; | |
432 | void *driver_priv; | |
433 | } drm_file_t; | |
434 | ||
435 | /** Wait queue */ | |
436 | typedef struct drm_queue { | |
437 | atomic_t use_count; /**< Outstanding uses (+1) */ | |
438 | atomic_t finalization; /**< Finalization in progress */ | |
439 | atomic_t block_count; /**< Count of processes waiting */ | |
440 | atomic_t block_read; /**< Queue blocked for reads */ | |
441 | wait_queue_head_t read_queue; /**< Processes waiting on block_read */ | |
442 | atomic_t block_write; /**< Queue blocked for writes */ | |
443 | wait_queue_head_t write_queue; /**< Processes waiting on block_write */ | |
444 | #if 1 | |
445 | atomic_t total_queued; /**< Total queued statistic */ | |
446 | atomic_t total_flushed;/**< Total flushes statistic */ | |
447 | atomic_t total_locks; /**< Total locks statistics */ | |
448 | #endif | |
449 | drm_ctx_flags_t flags; /**< Context preserving and 2D-only */ | |
450 | drm_waitlist_t waitlist; /**< Pending buffers */ | |
451 | wait_queue_head_t flush_queue; /**< Processes waiting until flush */ | |
452 | } drm_queue_t; | |
453 | ||
454 | /** | |
455 | * Lock data. | |
456 | */ | |
457 | typedef struct drm_lock_data { | |
458 | drm_hw_lock_t *hw_lock; /**< Hardware lock */ | |
459 | struct file *filp; /**< File descr of lock holder (0=kernel) */ | |
460 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ | |
461 | unsigned long lock_time; /**< Time of last lock in jiffies */ | |
462 | } drm_lock_data_t; | |
463 | ||
464 | /** | |
465 | * DMA data. | |
466 | */ | |
467 | typedef struct drm_device_dma { | |
468 | ||
469 | drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; /**< buffers, grouped by their size order */ | |
470 | int buf_count; /**< total number of buffers */ | |
471 | drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */ | |
472 | int seg_count; | |
473 | int page_count; /**< number of pages */ | |
474 | unsigned long *pagelist; /**< page list */ | |
475 | unsigned long byte_count; | |
476 | enum { | |
477 | _DRM_DMA_USE_AGP = 0x01, | |
b84397d6 DA |
478 | _DRM_DMA_USE_SG = 0x02, |
479 | _DRM_DMA_USE_FB = 0x04 | |
1da177e4 LT |
480 | } flags; |
481 | ||
482 | } drm_device_dma_t; | |
483 | ||
484 | /** | |
485 | * AGP memory entry. Stored as a doubly linked list. | |
486 | */ | |
487 | typedef struct drm_agp_mem { | |
488 | unsigned long handle; /**< handle */ | |
489 | DRM_AGP_MEM *memory; | |
490 | unsigned long bound; /**< address */ | |
491 | int pages; | |
492 | struct drm_agp_mem *prev; /**< previous entry */ | |
493 | struct drm_agp_mem *next; /**< next entry */ | |
494 | } drm_agp_mem_t; | |
495 | ||
496 | /** | |
497 | * AGP data. | |
498 | * | |
499 | * \sa drm_agp_init() and drm_device::agp. | |
500 | */ | |
501 | typedef struct drm_agp_head { | |
502 | DRM_AGP_KERN agp_info; /**< AGP device information */ | |
503 | drm_agp_mem_t *memory; /**< memory entries */ | |
504 | unsigned long mode; /**< AGP mode */ | |
505 | struct agp_bridge_data *bridge; | |
506 | int enabled; /**< whether the AGP bus as been enabled */ | |
507 | int acquired; /**< whether the AGP device has been acquired */ | |
508 | unsigned long base; | |
509 | int agp_mtrr; | |
510 | int cant_use_aperture; | |
511 | unsigned long page_mask; | |
512 | } drm_agp_head_t; | |
513 | ||
514 | /** | |
515 | * Scatter-gather memory. | |
516 | */ | |
517 | typedef struct drm_sg_mem { | |
518 | unsigned long handle; | |
519 | void *virtual; | |
520 | int pages; | |
521 | struct page **pagelist; | |
522 | dma_addr_t *busaddr; | |
523 | } drm_sg_mem_t; | |
524 | ||
525 | typedef struct drm_sigdata { | |
526 | int context; | |
527 | drm_hw_lock_t *lock; | |
528 | } drm_sigdata_t; | |
529 | ||
9c8da5eb DA |
530 | typedef struct drm_dma_handle { |
531 | dma_addr_t busaddr; | |
532 | void *vaddr; | |
533 | size_t size; | |
534 | } drm_dma_handle_t; | |
535 | ||
1da177e4 LT |
536 | /** |
537 | * Mappings list | |
538 | */ | |
539 | typedef struct drm_map_list { | |
540 | struct list_head head; /**< list head */ | |
541 | drm_map_t *map; /**< mapping */ | |
542 | } drm_map_list_t; | |
543 | ||
544 | typedef drm_map_t drm_local_map_t; | |
545 | ||
546 | /** | |
547 | * Context handle list | |
548 | */ | |
549 | typedef struct drm_ctx_list { | |
550 | struct list_head head; /**< list head */ | |
551 | drm_context_t handle; /**< context handle */ | |
552 | drm_file_t *tag; /**< associated fd private data */ | |
553 | } drm_ctx_list_t; | |
554 | ||
555 | ||
556 | typedef struct drm_vbl_sig { | |
557 | struct list_head head; | |
558 | unsigned int sequence; | |
559 | struct siginfo info; | |
560 | struct task_struct *task; | |
561 | } drm_vbl_sig_t; | |
562 | ||
563 | ||
564 | /** | |
565 | * DRM driver structure. This structure represent the common code for | |
566 | * a family of cards. There will one drm_device for each card present | |
567 | * in this family | |
568 | */ | |
569 | struct drm_device; | |
570 | ||
571 | struct drm_driver { | |
572 | int (*preinit)(struct drm_device *, unsigned long flags); | |
573 | void (*prerelease)(struct drm_device *, struct file *filp); | |
574 | void (*pretakedown)(struct drm_device *); | |
575 | int (*postcleanup)(struct drm_device *); | |
576 | int (*presetup)(struct drm_device *); | |
577 | int (*postsetup)(struct drm_device *); | |
578 | int (*dma_ioctl)( DRM_IOCTL_ARGS ); | |
579 | int (*open_helper)(struct drm_device *, drm_file_t *); | |
580 | void (*free_filp_priv)(struct drm_device *, drm_file_t *); | |
581 | void (*release)(struct drm_device *, struct file *filp); | |
582 | void (*dma_ready)(struct drm_device *); | |
583 | int (*dma_quiescent)(struct drm_device *); | |
584 | int (*context_ctor)(struct drm_device *dev, int context); | |
585 | int (*context_dtor)(struct drm_device *dev, int context); | |
586 | int (*kernel_context_switch)(struct drm_device *dev, int old, int new); | |
587 | void (*kernel_context_switch_unlock)(struct drm_device *dev, drm_lock_t *lock); | |
588 | int (*vblank_wait)(struct drm_device *dev, unsigned int *sequence); | |
cda17380 DA |
589 | |
590 | /** | |
591 | * Called by \c drm_device_is_agp. Typically used to determine if a | |
592 | * card is really attached to AGP or not. | |
593 | * | |
594 | * \param dev DRM device handle | |
595 | * | |
596 | * \returns | |
597 | * One of three values is returned depending on whether or not the | |
598 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP | |
599 | * (return of 1), or may or may not be AGP (return of 2). | |
600 | */ | |
601 | int (*device_is_agp) (struct drm_device * dev); | |
602 | ||
1da177e4 | 603 | /* these have to be filled in */ |
cda17380 | 604 | |
1da177e4 LT |
605 | int (*postinit)(struct drm_device *, unsigned long flags); |
606 | irqreturn_t (*irq_handler)( DRM_IRQ_ARGS ); | |
607 | void (*irq_preinstall)(struct drm_device *dev); | |
608 | void (*irq_postinstall)(struct drm_device *dev); | |
609 | void (*irq_uninstall)(struct drm_device *dev); | |
610 | void (*reclaim_buffers)(struct drm_device *dev, struct file *filp); | |
611 | unsigned long (*get_map_ofs)(drm_map_t *map); | |
612 | unsigned long (*get_reg_ofs)(struct drm_device *dev); | |
613 | void (*set_version)(struct drm_device *dev, drm_set_version_t *sv); | |
614 | int (*version)(drm_version_t *version); | |
615 | u32 driver_features; | |
616 | int dev_priv_size; | |
617 | drm_ioctl_desc_t *ioctls; | |
618 | int num_ioctls; | |
619 | struct file_operations fops; | |
620 | struct pci_driver pci_driver; | |
621 | }; | |
622 | ||
623 | /** | |
624 | * DRM head structure. This structure represent a video head on a card | |
625 | * that may contain multiple heads. Embed one per head of these in the | |
626 | * private drm_device structure. | |
627 | */ | |
628 | typedef struct drm_head { | |
629 | int minor; /**< Minor device number */ | |
630 | struct drm_device *dev; | |
631 | struct proc_dir_entry *dev_root; /**< proc directory entry */ | |
632 | dev_t device; /**< Device number for mknod */ | |
633 | struct class_device *dev_class; | |
634 | } drm_head_t; | |
635 | ||
636 | /** | |
637 | * DRM device structure. This structure represent a complete card that | |
638 | * may contain multiple heads. | |
639 | */ | |
640 | typedef struct drm_device { | |
641 | char *unique; /**< Unique identifier: e.g., busid */ | |
642 | int unique_len; /**< Length of unique field */ | |
643 | char *devname; /**< For /proc/interrupts */ | |
644 | int if_version; /**< Highest interface version set */ | |
645 | ||
646 | int blocked; /**< Blocked due to VC switch? */ | |
647 | ||
648 | /** \name Locks */ | |
649 | /*@{*/ | |
650 | spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ | |
651 | struct semaphore struct_sem; /**< For others */ | |
652 | /*@}*/ | |
653 | ||
654 | /** \name Usage Counters */ | |
655 | /*@{*/ | |
656 | int open_count; /**< Outstanding files open */ | |
657 | atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ | |
658 | atomic_t vma_count; /**< Outstanding vma areas open */ | |
659 | int buf_use; /**< Buffers in use -- cannot alloc */ | |
660 | atomic_t buf_alloc; /**< Buffer allocation in progress */ | |
661 | /*@}*/ | |
662 | ||
663 | /** \name Performance counters */ | |
664 | /*@{*/ | |
665 | unsigned long counters; | |
666 | drm_stat_type_t types[15]; | |
667 | atomic_t counts[15]; | |
668 | /*@}*/ | |
669 | ||
670 | /** \name Authentication */ | |
671 | /*@{*/ | |
672 | drm_file_t *file_first; /**< file list head */ | |
673 | drm_file_t *file_last; /**< file list tail */ | |
674 | drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */ | |
675 | /*@}*/ | |
676 | ||
677 | /** \name Memory management */ | |
678 | /*@{*/ | |
679 | drm_map_list_t *maplist; /**< Linked list of regions */ | |
680 | int map_count; /**< Number of mappable regions */ | |
681 | ||
682 | /** \name Context handle management */ | |
683 | /*@{*/ | |
684 | drm_ctx_list_t *ctxlist; /**< Linked list of context handles */ | |
685 | int ctx_count; /**< Number of context handles */ | |
686 | struct semaphore ctxlist_sem; /**< For ctxlist */ | |
687 | ||
688 | drm_map_t **context_sareas; /**< per-context SAREA's */ | |
689 | int max_context; | |
690 | ||
691 | drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */ | |
692 | drm_lock_data_t lock; /**< Information on hardware lock */ | |
693 | /*@}*/ | |
694 | ||
695 | /** \name DMA queues (contexts) */ | |
696 | /*@{*/ | |
697 | int queue_count; /**< Number of active DMA queues */ | |
698 | int queue_reserved; /**< Number of reserved DMA queues */ | |
699 | int queue_slots; /**< Actual length of queuelist */ | |
700 | drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */ | |
701 | drm_device_dma_t *dma; /**< Optional pointer for DMA support */ | |
702 | /*@}*/ | |
703 | ||
704 | /** \name Context support */ | |
705 | /*@{*/ | |
706 | int irq; /**< Interrupt used by board */ | |
707 | int irq_enabled; /**< True if irq handler is enabled */ | |
708 | __volatile__ long context_flag; /**< Context swapping flag */ | |
709 | __volatile__ long interrupt_flag; /**< Interruption handler flag */ | |
710 | __volatile__ long dma_flag; /**< DMA dispatch flag */ | |
711 | struct timer_list timer; /**< Timer for delaying ctx switch */ | |
712 | wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ | |
713 | int last_checked; /**< Last context checked for DMA */ | |
714 | int last_context; /**< Last current context */ | |
715 | unsigned long last_switch; /**< jiffies at last context switch */ | |
716 | /*@}*/ | |
717 | ||
718 | struct work_struct work; | |
719 | /** \name VBLANK IRQ support */ | |
720 | /*@{*/ | |
721 | ||
722 | wait_queue_head_t vbl_queue; /**< VBLANK wait queue */ | |
723 | atomic_t vbl_received; | |
724 | spinlock_t vbl_lock; | |
725 | drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */ | |
726 | unsigned int vbl_pending; | |
727 | ||
728 | /*@}*/ | |
729 | cycles_t ctx_start; | |
730 | cycles_t lck_start; | |
731 | ||
732 | char buf[DRM_BSZ]; /**< Output buffer */ | |
733 | char *buf_rp; /**< Read pointer */ | |
734 | char *buf_wp; /**< Write pointer */ | |
735 | char *buf_end; /**< End pointer */ | |
736 | struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */ | |
737 | wait_queue_head_t buf_readers; /**< Processes waiting to read */ | |
738 | wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */ | |
739 | ||
740 | drm_agp_head_t *agp; /**< AGP data */ | |
741 | ||
742 | struct pci_dev *pdev; /**< PCI device structure */ | |
743 | int pci_domain; /**< PCI bus domain number */ | |
744 | int pci_bus; /**< PCI bus number */ | |
745 | int pci_slot; /**< PCI slot number */ | |
746 | int pci_func; /**< PCI function number */ | |
747 | #ifdef __alpha__ | |
748 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3) | |
749 | struct pci_controler *hose; | |
750 | #else | |
751 | struct pci_controller *hose; | |
752 | #endif | |
753 | #endif | |
754 | drm_sg_mem_t *sg; /**< Scatter gather memory */ | |
755 | unsigned long *ctx_bitmap; /**< context bitmap */ | |
756 | void *dev_private; /**< device private data */ | |
757 | drm_sigdata_t sigdata; /**< For block_all_signals */ | |
758 | sigset_t sigmask; | |
759 | ||
760 | struct drm_driver *driver; | |
761 | drm_local_map_t *agp_buffer_map; | |
762 | drm_head_t primary; /**< primary screen head */ | |
763 | } drm_device_t; | |
764 | ||
765 | static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature) | |
766 | { | |
767 | return ((dev->driver->driver_features & feature) ? 1 : 0); | |
768 | } | |
769 | ||
770 | #if __OS_HAS_AGP | |
771 | static inline int drm_core_has_AGP(struct drm_device *dev) | |
772 | { | |
773 | return drm_core_check_feature(dev, DRIVER_USE_AGP); | |
774 | } | |
775 | #else | |
776 | #define drm_core_has_AGP(dev) (0) | |
777 | #endif | |
778 | ||
779 | #if __OS_HAS_MTRR | |
780 | static inline int drm_core_has_MTRR(struct drm_device *dev) | |
781 | { | |
782 | return drm_core_check_feature(dev, DRIVER_USE_MTRR); | |
783 | } | |
784 | #else | |
785 | #define drm_core_has_MTRR(dev) (0) | |
786 | #endif | |
787 | ||
788 | /******************************************************************/ | |
789 | /** \name Internal function definitions */ | |
790 | /*@{*/ | |
791 | ||
792 | /* Misc. support (drm_init.h) */ | |
793 | extern int drm_flags; | |
794 | extern void drm_parse_options( char *s ); | |
795 | extern int drm_cpu_valid( void ); | |
796 | ||
797 | /* Driver support (drm_drv.h) */ | |
798 | extern int drm_init(struct drm_driver *driver); | |
799 | extern void drm_exit(struct drm_driver *driver); | |
1da177e4 LT |
800 | extern int drm_ioctl(struct inode *inode, struct file *filp, |
801 | unsigned int cmd, unsigned long arg); | |
9a186645 DA |
802 | extern long drm_compat_ioctl(struct file *filp, |
803 | unsigned int cmd, unsigned long arg); | |
1da177e4 LT |
804 | extern int drm_takedown(drm_device_t * dev); |
805 | ||
806 | /* Device support (drm_fops.h) */ | |
807 | extern int drm_open(struct inode *inode, struct file *filp); | |
808 | extern int drm_stub_open(struct inode *inode, struct file *filp); | |
1da177e4 LT |
809 | extern int drm_flush(struct file *filp); |
810 | extern int drm_fasync(int fd, struct file *filp, int on); | |
811 | extern int drm_release(struct inode *inode, struct file *filp); | |
812 | ||
813 | /* Mapping support (drm_vm.h) */ | |
1da177e4 LT |
814 | extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); |
815 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); | |
1da177e4 LT |
816 | |
817 | /* Memory management support (drm_memory.h) */ | |
818 | #include "drm_memory.h" | |
819 | extern void drm_mem_init(void); | |
820 | extern int drm_mem_info(char *buf, char **start, off_t offset, | |
821 | int request, int *eof, void *data); | |
1da177e4 LT |
822 | extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, |
823 | int area); | |
824 | extern unsigned long drm_alloc_pages(int order, int area); | |
825 | extern void drm_free_pages(unsigned long address, int order, | |
826 | int area); | |
827 | extern void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev); | |
828 | extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size, | |
829 | drm_device_t *dev); | |
830 | extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev); | |
831 | ||
b5d499cf | 832 | extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t *dev, int pages, u32 type); |
1da177e4 LT |
833 | extern int drm_free_agp(DRM_AGP_MEM *handle, int pages); |
834 | extern int drm_bind_agp(DRM_AGP_MEM *handle, unsigned int start); | |
835 | extern int drm_unbind_agp(DRM_AGP_MEM *handle); | |
836 | ||
837 | /* Misc. IOCTL support (drm_ioctl.h) */ | |
838 | extern int drm_irq_by_busid(struct inode *inode, struct file *filp, | |
839 | unsigned int cmd, unsigned long arg); | |
840 | extern int drm_getunique(struct inode *inode, struct file *filp, | |
841 | unsigned int cmd, unsigned long arg); | |
842 | extern int drm_setunique(struct inode *inode, struct file *filp, | |
843 | unsigned int cmd, unsigned long arg); | |
844 | extern int drm_getmap(struct inode *inode, struct file *filp, | |
845 | unsigned int cmd, unsigned long arg); | |
846 | extern int drm_getclient(struct inode *inode, struct file *filp, | |
847 | unsigned int cmd, unsigned long arg); | |
848 | extern int drm_getstats(struct inode *inode, struct file *filp, | |
849 | unsigned int cmd, unsigned long arg); | |
850 | extern int drm_setversion(struct inode *inode, struct file *filp, | |
851 | unsigned int cmd, unsigned long arg); | |
852 | ||
853 | /* Context IOCTL support (drm_context.h) */ | |
854 | extern int drm_resctx( struct inode *inode, struct file *filp, | |
855 | unsigned int cmd, unsigned long arg ); | |
856 | extern int drm_addctx( struct inode *inode, struct file *filp, | |
857 | unsigned int cmd, unsigned long arg ); | |
858 | extern int drm_modctx( struct inode *inode, struct file *filp, | |
859 | unsigned int cmd, unsigned long arg ); | |
860 | extern int drm_getctx( struct inode *inode, struct file *filp, | |
861 | unsigned int cmd, unsigned long arg ); | |
862 | extern int drm_switchctx( struct inode *inode, struct file *filp, | |
863 | unsigned int cmd, unsigned long arg ); | |
864 | extern int drm_newctx( struct inode *inode, struct file *filp, | |
865 | unsigned int cmd, unsigned long arg ); | |
866 | extern int drm_rmctx( struct inode *inode, struct file *filp, | |
867 | unsigned int cmd, unsigned long arg ); | |
868 | ||
1da177e4 LT |
869 | extern int drm_ctxbitmap_init( drm_device_t *dev ); |
870 | extern void drm_ctxbitmap_cleanup( drm_device_t *dev ); | |
871 | extern void drm_ctxbitmap_free( drm_device_t *dev, int ctx_handle ); | |
872 | ||
873 | extern int drm_setsareactx( struct inode *inode, struct file *filp, | |
874 | unsigned int cmd, unsigned long arg ); | |
875 | extern int drm_getsareactx( struct inode *inode, struct file *filp, | |
876 | unsigned int cmd, unsigned long arg ); | |
877 | ||
878 | /* Drawable IOCTL support (drm_drawable.h) */ | |
879 | extern int drm_adddraw(struct inode *inode, struct file *filp, | |
880 | unsigned int cmd, unsigned long arg); | |
881 | extern int drm_rmdraw(struct inode *inode, struct file *filp, | |
882 | unsigned int cmd, unsigned long arg); | |
883 | ||
884 | ||
885 | /* Authentication IOCTL support (drm_auth.h) */ | |
1da177e4 LT |
886 | extern int drm_getmagic(struct inode *inode, struct file *filp, |
887 | unsigned int cmd, unsigned long arg); | |
888 | extern int drm_authmagic(struct inode *inode, struct file *filp, | |
889 | unsigned int cmd, unsigned long arg); | |
890 | ||
891 | /* Placeholder for ioctls past */ | |
892 | extern int drm_noop(struct inode *inode, struct file *filp, | |
893 | unsigned int cmd, unsigned long arg); | |
894 | ||
895 | /* Locking IOCTL support (drm_lock.h) */ | |
896 | extern int drm_lock(struct inode *inode, struct file *filp, | |
897 | unsigned int cmd, unsigned long arg); | |
898 | extern int drm_unlock(struct inode *inode, struct file *filp, | |
899 | unsigned int cmd, unsigned long arg); | |
900 | extern int drm_lock_take(__volatile__ unsigned int *lock, | |
901 | unsigned int context); | |
1da177e4 LT |
902 | extern int drm_lock_free(drm_device_t *dev, |
903 | __volatile__ unsigned int *lock, | |
904 | unsigned int context); | |
1da177e4 LT |
905 | |
906 | /* Buffer management support (drm_bufs.h) */ | |
ceb9c27a DA |
907 | extern int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request); |
908 | extern int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request); | |
7ab98401 DA |
909 | extern int drm_addmap(drm_device_t *dev, unsigned int offset, |
910 | unsigned int size, drm_map_type_t type, | |
911 | drm_map_flags_t flags, drm_map_t **map_ptr); | |
912 | extern int drm_addmap_ioctl(struct inode *inode, struct file *filp, | |
913 | unsigned int cmd, unsigned long arg); | |
914 | extern int drm_rmmap(drm_device_t *dev, void *handle); | |
915 | extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp, | |
916 | unsigned int cmd, unsigned long arg); | |
917 | ||
1da177e4 | 918 | extern int drm_order( unsigned long size ); |
1da177e4 LT |
919 | extern int drm_addbufs( struct inode *inode, struct file *filp, |
920 | unsigned int cmd, unsigned long arg ); | |
921 | extern int drm_infobufs( struct inode *inode, struct file *filp, | |
922 | unsigned int cmd, unsigned long arg ); | |
923 | extern int drm_markbufs( struct inode *inode, struct file *filp, | |
924 | unsigned int cmd, unsigned long arg ); | |
925 | extern int drm_freebufs( struct inode *inode, struct file *filp, | |
926 | unsigned int cmd, unsigned long arg ); | |
927 | extern int drm_mapbufs( struct inode *inode, struct file *filp, | |
928 | unsigned int cmd, unsigned long arg ); | |
929 | ||
930 | /* DMA support (drm_dma.h) */ | |
931 | extern int drm_dma_setup(drm_device_t *dev); | |
932 | extern void drm_dma_takedown(drm_device_t *dev); | |
933 | extern void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); | |
934 | extern void drm_core_reclaim_buffers(drm_device_t *dev, struct file *filp); | |
935 | ||
936 | /* IRQ support (drm_irq.h) */ | |
937 | extern int drm_control( struct inode *inode, struct file *filp, | |
938 | unsigned int cmd, unsigned long arg ); | |
1da177e4 LT |
939 | extern int drm_irq_uninstall( drm_device_t *dev ); |
940 | extern irqreturn_t drm_irq_handler( DRM_IRQ_ARGS ); | |
941 | extern void drm_driver_irq_preinstall( drm_device_t *dev ); | |
942 | extern void drm_driver_irq_postinstall( drm_device_t *dev ); | |
943 | extern void drm_driver_irq_uninstall( drm_device_t *dev ); | |
944 | ||
945 | extern int drm_wait_vblank(struct inode *inode, struct file *filp, | |
946 | unsigned int cmd, unsigned long arg); | |
947 | extern int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq); | |
948 | extern void drm_vbl_send_signals( drm_device_t *dev ); | |
949 | ||
950 | /* AGP/GART support (drm_agpsupport.h) */ | |
951 | extern drm_agp_head_t *drm_agp_init(drm_device_t *dev); | |
7ab98401 DA |
952 | extern int drm_agp_acquire(drm_device_t * dev); |
953 | extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp, | |
954 | unsigned int cmd, unsigned long arg); | |
955 | extern int drm_agp_release(drm_device_t *dev); | |
956 | extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp, | |
957 | unsigned int cmd, unsigned long arg); | |
958 | extern int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode); | |
959 | extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp, | |
960 | unsigned int cmd, unsigned long arg); | |
961 | extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info); | |
962 | extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp, | |
963 | unsigned int cmd, unsigned long arg); | |
1da177e4 LT |
964 | extern int drm_agp_alloc(struct inode *inode, struct file *filp, |
965 | unsigned int cmd, unsigned long arg); | |
966 | extern int drm_agp_free(struct inode *inode, struct file *filp, | |
967 | unsigned int cmd, unsigned long arg); | |
968 | extern int drm_agp_unbind(struct inode *inode, struct file *filp, | |
969 | unsigned int cmd, unsigned long arg); | |
970 | extern int drm_agp_bind(struct inode *inode, struct file *filp, | |
971 | unsigned int cmd, unsigned long arg); | |
972 | extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size_t pages, u32 type); | |
973 | extern int drm_agp_free_memory(DRM_AGP_MEM *handle); | |
974 | extern int drm_agp_bind_memory(DRM_AGP_MEM *handle, off_t start); | |
975 | extern int drm_agp_unbind_memory(DRM_AGP_MEM *handle); | |
976 | ||
977 | /* Stub support (drm_stub.h) */ | |
978 | extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, | |
979 | struct drm_driver *driver); | |
980 | extern int drm_put_dev(drm_device_t * dev); | |
1da177e4 LT |
981 | extern int drm_put_head(drm_head_t * head); |
982 | extern unsigned int drm_debug; | |
983 | extern unsigned int drm_cards_limit; | |
984 | extern drm_head_t **drm_heads; | |
985 | extern struct drm_sysfs_class *drm_class; | |
986 | extern struct proc_dir_entry *drm_proc_root; | |
987 | ||
988 | /* Proc support (drm_proc.h) */ | |
989 | extern int drm_proc_init(drm_device_t *dev, | |
990 | int minor, | |
991 | struct proc_dir_entry *root, | |
992 | struct proc_dir_entry **dev_root); | |
993 | extern int drm_proc_cleanup(int minor, | |
994 | struct proc_dir_entry *root, | |
995 | struct proc_dir_entry *dev_root); | |
996 | ||
997 | /* Scatter Gather Support (drm_scatter.h) */ | |
998 | extern void drm_sg_cleanup(drm_sg_mem_t *entry); | |
999 | extern int drm_sg_alloc(struct inode *inode, struct file *filp, | |
1000 | unsigned int cmd, unsigned long arg); | |
1001 | extern int drm_sg_free(struct inode *inode, struct file *filp, | |
1002 | unsigned int cmd, unsigned long arg); | |
1003 | ||
1004 | /* ATI PCIGART support (ati_pcigart.h) */ | |
1005 | extern int drm_ati_pcigart_init(drm_device_t *dev, | |
1006 | unsigned long *addr, | |
1007 | dma_addr_t *bus_addr); | |
1008 | extern int drm_ati_pcigart_cleanup(drm_device_t *dev, | |
1009 | unsigned long addr, | |
1010 | dma_addr_t bus_addr); | |
1011 | ||
9c8da5eb DA |
1012 | extern drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, |
1013 | size_t align, dma_addr_t maxaddr); | |
1014 | extern void __drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); | |
1015 | extern void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); | |
1da177e4 LT |
1016 | |
1017 | /* sysfs support (drm_sysfs.c) */ | |
1018 | struct drm_sysfs_class; | |
1019 | extern struct drm_sysfs_class *drm_sysfs_create(struct module *owner, | |
1020 | char *name); | |
1021 | extern void drm_sysfs_destroy(struct drm_sysfs_class *cs); | |
1022 | extern struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs, | |
1023 | dev_t dev, | |
1024 | struct device *device, | |
1025 | const char *fmt, ...); | |
1026 | extern void drm_sysfs_device_remove(dev_t dev); | |
1027 | ||
1028 | ||
1029 | /* Inline replacements for DRM_IOREMAP macros */ | |
1030 | static __inline__ void drm_core_ioremap(struct drm_map *map, struct drm_device *dev) | |
1031 | { | |
1032 | map->handle = drm_ioremap( map->offset, map->size, dev ); | |
1033 | } | |
1034 | ||
1035 | static __inline__ void drm_core_ioremap_nocache(struct drm_map *map, struct drm_device *dev) | |
1036 | { | |
1037 | map->handle = drm_ioremap_nocache(map->offset, map->size, dev); | |
1038 | } | |
1039 | ||
1040 | static __inline__ void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev) | |
1041 | { | |
1042 | if ( map->handle && map->size ) | |
1043 | drm_ioremapfree( map->handle, map->size, dev ); | |
1044 | } | |
1045 | ||
1046 | static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, unsigned long offset) | |
1047 | { | |
1048 | struct list_head *_list; | |
1049 | list_for_each( _list, &dev->maplist->head ) { | |
1050 | drm_map_list_t *_entry = list_entry( _list, drm_map_list_t, head ); | |
1051 | if ( _entry->map && | |
1052 | _entry->map->offset == offset ) { | |
1053 | return _entry->map; | |
1054 | } | |
1055 | } | |
1056 | return NULL; | |
1057 | } | |
1058 | ||
cda17380 DA |
1059 | static __inline__ int drm_device_is_agp(drm_device_t *dev) |
1060 | { | |
1061 | if ( dev->driver->device_is_agp != NULL ) { | |
1062 | int err = (*dev->driver->device_is_agp)( dev ); | |
1063 | ||
1064 | if (err != 2) { | |
1065 | return err; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); | |
1070 | } | |
1071 | ||
1da177e4 LT |
1072 | static __inline__ void drm_core_dropmap(struct drm_map *map) |
1073 | { | |
1074 | } | |
1075 | ||
1076 | #ifndef DEBUG_MEMORY | |
1077 | /** Wrapper around kmalloc() */ | |
1078 | static __inline__ void *drm_alloc(size_t size, int area) | |
1079 | { | |
1080 | return kmalloc(size, GFP_KERNEL); | |
1081 | } | |
1082 | ||
1083 | /** Wrapper around kfree() */ | |
1084 | static __inline__ void drm_free(void *pt, size_t size, int area) | |
1085 | { | |
1086 | kfree(pt); | |
1087 | } | |
b9523249 DA |
1088 | |
1089 | /** Wrapper around kcalloc() */ | |
1090 | static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area) | |
1091 | { | |
1092 | return kcalloc(nmemb, size, GFP_KERNEL); | |
1093 | } | |
1da177e4 LT |
1094 | #else |
1095 | extern void *drm_alloc(size_t size, int area); | |
1096 | extern void drm_free(void *pt, size_t size, int area); | |
b9523249 | 1097 | extern void *drm_calloc(size_t nmemb, size_t size, int area); |
1da177e4 LT |
1098 | #endif |
1099 | ||
1100 | /*@}*/ | |
1101 | ||
1102 | extern unsigned long drm_core_get_map_ofs(drm_map_t *map); | |
1103 | extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev); | |
1104 | ||
1105 | #endif /* __KERNEL__ */ | |
1106 | #endif |