Root/
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 | * Copyright (c) 2009-2010, Code Aurora Forum. |
13 | * All rights reserved. |
14 | * |
15 | * Permission is hereby granted, free of charge, to any person obtaining a |
16 | * copy of this software and associated documentation files (the "Software"), |
17 | * to deal in the Software without restriction, including without limitation |
18 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
19 | * and/or sell copies of the Software, and to permit persons to whom the |
20 | * Software is furnished to do so, subject to the following conditions: |
21 | * |
22 | * The above copyright notice and this permission notice (including the next |
23 | * paragraph) shall be included in all copies or substantial portions of the |
24 | * Software. |
25 | * |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
27 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
28 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
29 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
30 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
31 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
32 | * OTHER DEALINGS IN THE SOFTWARE. |
33 | */ |
34 | |
35 | #ifndef _DRM_P_H_ |
36 | #define _DRM_P_H_ |
37 | |
38 | #ifdef __KERNEL__ |
39 | #ifdef __alpha__ |
40 | /* add include of current.h so that "current" is defined |
41 | * before static inline funcs in wait.h. Doing this so we |
42 | * can build the DRM (part of PI DRI). 4/21/2000 S + B */ |
43 | #include <asm/current.h> |
44 | #endif /* __alpha__ */ |
45 | #include <linux/module.h> |
46 | #include <linux/kernel.h> |
47 | #include <linux/miscdevice.h> |
48 | #include <linux/fs.h> |
49 | #include <linux/proc_fs.h> |
50 | #include <linux/init.h> |
51 | #include <linux/file.h> |
52 | #include <linux/platform_device.h> |
53 | #include <linux/pci.h> |
54 | #include <linux/jiffies.h> |
55 | #include <linux/dma-mapping.h> |
56 | #include <linux/mm.h> |
57 | #include <linux/cdev.h> |
58 | #include <linux/mutex.h> |
59 | #include <linux/slab.h> |
60 | #if defined(__alpha__) || defined(__powerpc__) |
61 | #include <asm/pgtable.h> /* For pte_wrprotect */ |
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 | #include <linux/idr.h> |
79 | |
80 | #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))) |
81 | #define __OS_HAS_MTRR (defined(CONFIG_MTRR)) |
82 | |
83 | struct drm_file; |
84 | struct drm_device; |
85 | |
86 | #include "drm_os_linux.h" |
87 | #include "drm_hashtab.h" |
88 | #include "drm_mm.h" |
89 | |
90 | #define DRM_UT_CORE 0x01 |
91 | #define DRM_UT_DRIVER 0x02 |
92 | #define DRM_UT_KMS 0x04 |
93 | /* |
94 | * Three debug levels are defined. |
95 | * drm_core, drm_driver, drm_kms |
96 | * drm_core level can be used in the generic drm code. For example: |
97 | * drm_ioctl, drm_mm, drm_memory |
98 | * The macro definition of DRM_DEBUG is used. |
99 | * DRM_DEBUG(fmt, args...) |
100 | * The debug info by using the DRM_DEBUG can be obtained by adding |
101 | * the boot option of "drm.debug=1". |
102 | * |
103 | * drm_driver level can be used in the specific drm driver. It is used |
104 | * to add the debug info related with the drm driver. For example: |
105 | * i915_drv, i915_dma, i915_gem, radeon_drv, |
106 | * The macro definition of DRM_DEBUG_DRIVER can be used. |
107 | * DRM_DEBUG_DRIVER(fmt, args...) |
108 | * The debug info by using the DRM_DEBUG_DRIVER can be obtained by |
109 | * adding the boot option of "drm.debug=0x02" |
110 | * |
111 | * drm_kms level can be used in the KMS code related with specific drm driver. |
112 | * It is used to add the debug info related with KMS mode. For example: |
113 | * the connector/crtc , |
114 | * The macro definition of DRM_DEBUG_KMS can be used. |
115 | * DRM_DEBUG_KMS(fmt, args...) |
116 | * The debug info by using the DRM_DEBUG_KMS can be obtained by |
117 | * adding the boot option of "drm.debug=0x04" |
118 | * |
119 | * If we add the boot option of "drm.debug=0x06", we can get the debug info by |
120 | * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER. |
121 | * If we add the boot option of "drm.debug=0x05", we can get the debug info by |
122 | * using the DRM_DEBUG_KMS and DRM_DEBUG. |
123 | */ |
124 | |
125 | extern __attribute__((format (printf, 4, 5))) |
126 | void drm_ut_debug_printk(unsigned int request_level, |
127 | const char *prefix, |
128 | const char *function_name, |
129 | const char *format, ...); |
130 | extern __attribute__((format (printf, 2, 3))) |
131 | int drm_err(const char *func, const char *format, ...); |
132 | |
133 | /***********************************************************************/ |
134 | /** \name DRM template customization defaults */ |
135 | /*@{*/ |
136 | |
137 | /* driver capabilities and requirements mask */ |
138 | #define DRIVER_USE_AGP 0x1 |
139 | #define DRIVER_REQUIRE_AGP 0x2 |
140 | #define DRIVER_USE_MTRR 0x4 |
141 | #define DRIVER_PCI_DMA 0x8 |
142 | #define DRIVER_SG 0x10 |
143 | #define DRIVER_HAVE_DMA 0x20 |
144 | #define DRIVER_HAVE_IRQ 0x40 |
145 | #define DRIVER_IRQ_SHARED 0x80 |
146 | #define DRIVER_IRQ_VBL 0x100 |
147 | #define DRIVER_DMA_QUEUE 0x200 |
148 | #define DRIVER_FB_DMA 0x400 |
149 | #define DRIVER_IRQ_VBL2 0x800 |
150 | #define DRIVER_GEM 0x1000 |
151 | #define DRIVER_MODESET 0x2000 |
152 | |
153 | #define DRIVER_BUS_PCI 0x1 |
154 | #define DRIVER_BUS_PLATFORM 0x2 |
155 | #define DRIVER_BUS_USB 0x3 |
156 | |
157 | /***********************************************************************/ |
158 | /** \name Begin the DRM... */ |
159 | /*@{*/ |
160 | |
161 | #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then |
162 | also include looping detection. */ |
163 | |
164 | #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */ |
165 | #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */ |
166 | #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */ |
167 | #define DRM_LOOPING_LIMIT 5000000 |
168 | #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */ |
169 | #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */ |
170 | |
171 | #define DRM_FLAG_DEBUG 0x01 |
172 | |
173 | #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) |
174 | #define DRM_MAP_HASH_OFFSET 0x10000000 |
175 | |
176 | /*@}*/ |
177 | |
178 | /***********************************************************************/ |
179 | /** \name Macros to make printk easier */ |
180 | /*@{*/ |
181 | |
182 | /** |
183 | * Error output. |
184 | * |
185 | * \param fmt printf() like format string. |
186 | * \param arg arguments |
187 | */ |
188 | #define DRM_ERROR(fmt, ...) \ |
189 | drm_err(__func__, fmt, ##__VA_ARGS__) |
190 | |
191 | #define DRM_INFO(fmt, ...) \ |
192 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
193 | |
194 | /** |
195 | * Debug output. |
196 | * |
197 | * \param fmt printf() like format string. |
198 | * \param arg arguments |
199 | */ |
200 | #if DRM_DEBUG_CODE |
201 | #define DRM_DEBUG(fmt, args...) \ |
202 | do { \ |
203 | drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \ |
204 | __func__, fmt, ##args); \ |
205 | } while (0) |
206 | |
207 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
208 | do { \ |
209 | drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \ |
210 | __func__, fmt, ##args); \ |
211 | } while (0) |
212 | #define DRM_DEBUG_KMS(fmt, args...) \ |
213 | do { \ |
214 | drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \ |
215 | __func__, fmt, ##args); \ |
216 | } while (0) |
217 | #define DRM_LOG(fmt, args...) \ |
218 | do { \ |
219 | drm_ut_debug_printk(DRM_UT_CORE, NULL, \ |
220 | NULL, fmt, ##args); \ |
221 | } while (0) |
222 | #define DRM_LOG_KMS(fmt, args...) \ |
223 | do { \ |
224 | drm_ut_debug_printk(DRM_UT_KMS, NULL, \ |
225 | NULL, fmt, ##args); \ |
226 | } while (0) |
227 | #define DRM_LOG_MODE(fmt, args...) \ |
228 | do { \ |
229 | drm_ut_debug_printk(DRM_UT_MODE, NULL, \ |
230 | NULL, fmt, ##args); \ |
231 | } while (0) |
232 | #define DRM_LOG_DRIVER(fmt, args...) \ |
233 | do { \ |
234 | drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \ |
235 | NULL, fmt, ##args); \ |
236 | } while (0) |
237 | #else |
238 | #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) |
239 | #define DRM_DEBUG_KMS(fmt, args...) do { } while (0) |
240 | #define DRM_DEBUG(fmt, arg...) do { } while (0) |
241 | #define DRM_LOG(fmt, arg...) do { } while (0) |
242 | #define DRM_LOG_KMS(fmt, args...) do { } while (0) |
243 | #define DRM_LOG_MODE(fmt, arg...) do { } while (0) |
244 | #define DRM_LOG_DRIVER(fmt, arg...) do { } while (0) |
245 | |
246 | #endif |
247 | |
248 | /*@}*/ |
249 | |
250 | /***********************************************************************/ |
251 | /** \name Internal types and structures */ |
252 | /*@{*/ |
253 | |
254 | #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x) |
255 | |
256 | #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) |
257 | #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) |
258 | |
259 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
260 | |
261 | /** |
262 | * Test that the hardware lock is held by the caller, returning otherwise. |
263 | * |
264 | * \param dev DRM device. |
265 | * \param filp file pointer of the caller. |
266 | */ |
267 | #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ |
268 | do { \ |
269 | if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ |
270 | _file_priv->master->lock.file_priv != _file_priv) { \ |
271 | DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ |
272 | __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ |
273 | _file_priv->master->lock.file_priv, _file_priv); \ |
274 | return -EINVAL; \ |
275 | } \ |
276 | } while (0) |
277 | |
278 | /** |
279 | * Ioctl function type. |
280 | * |
281 | * \param inode device inode. |
282 | * \param file_priv DRM file private pointer. |
283 | * \param cmd command. |
284 | * \param arg argument. |
285 | */ |
286 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
287 | struct drm_file *file_priv); |
288 | |
289 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
290 | unsigned long arg); |
291 | |
292 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
293 | #define DRM_MAJOR 226 |
294 | |
295 | #define DRM_AUTH 0x1 |
296 | #define DRM_MASTER 0x2 |
297 | #define DRM_ROOT_ONLY 0x4 |
298 | #define DRM_CONTROL_ALLOW 0x8 |
299 | #define DRM_UNLOCKED 0x10 |
300 | |
301 | struct drm_ioctl_desc { |
302 | unsigned int cmd; |
303 | int flags; |
304 | drm_ioctl_t *func; |
305 | unsigned int cmd_drv; |
306 | }; |
307 | |
308 | /** |
309 | * Creates a driver or general drm_ioctl_desc array entry for the given |
310 | * ioctl, for use by drm_ioctl(). |
311 | */ |
312 | |
313 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
314 | [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} |
315 | |
316 | struct drm_magic_entry { |
317 | struct list_head head; |
318 | struct drm_hash_item hash_item; |
319 | struct drm_file *priv; |
320 | }; |
321 | |
322 | struct drm_vma_entry { |
323 | struct list_head head; |
324 | struct vm_area_struct *vma; |
325 | pid_t pid; |
326 | }; |
327 | |
328 | /** |
329 | * DMA buffer. |
330 | */ |
331 | struct drm_buf { |
332 | int idx; /**< Index into master buflist */ |
333 | int total; /**< Buffer size */ |
334 | int order; /**< log-base-2(total) */ |
335 | int used; /**< Amount of buffer in use (for DMA) */ |
336 | unsigned long offset; /**< Byte offset (used internally) */ |
337 | void *address; /**< Address of buffer */ |
338 | unsigned long bus_address; /**< Bus address of buffer */ |
339 | struct drm_buf *next; /**< Kernel-only: used for free list */ |
340 | __volatile__ int waiting; /**< On kernel DMA queue */ |
341 | __volatile__ int pending; /**< On hardware DMA queue */ |
342 | wait_queue_head_t dma_wait; /**< Processes waiting */ |
343 | struct drm_file *file_priv; /**< Private of holding file descr */ |
344 | int context; /**< Kernel queue for this buffer */ |
345 | int while_locked; /**< Dispatch this buffer while locked */ |
346 | enum { |
347 | DRM_LIST_NONE = 0, |
348 | DRM_LIST_FREE = 1, |
349 | DRM_LIST_WAIT = 2, |
350 | DRM_LIST_PEND = 3, |
351 | DRM_LIST_PRIO = 4, |
352 | DRM_LIST_RECLAIM = 5 |
353 | } list; /**< Which list we're on */ |
354 | |
355 | int dev_priv_size; /**< Size of buffer private storage */ |
356 | void *dev_private; /**< Per-buffer private storage */ |
357 | }; |
358 | |
359 | /** bufs is one longer than it has to be */ |
360 | struct drm_waitlist { |
361 | int count; /**< Number of possible buffers */ |
362 | struct drm_buf **bufs; /**< List of pointers to buffers */ |
363 | struct drm_buf **rp; /**< Read pointer */ |
364 | struct drm_buf **wp; /**< Write pointer */ |
365 | struct drm_buf **end; /**< End pointer */ |
366 | spinlock_t read_lock; |
367 | spinlock_t write_lock; |
368 | }; |
369 | |
370 | struct drm_freelist { |
371 | int initialized; /**< Freelist in use */ |
372 | atomic_t count; /**< Number of free buffers */ |
373 | struct drm_buf *next; /**< End pointer */ |
374 | |
375 | wait_queue_head_t waiting; /**< Processes waiting on free bufs */ |
376 | int low_mark; /**< Low water mark */ |
377 | int high_mark; /**< High water mark */ |
378 | atomic_t wfh; /**< If waiting for high mark */ |
379 | spinlock_t lock; |
380 | }; |
381 | |
382 | typedef struct drm_dma_handle { |
383 | dma_addr_t busaddr; |
384 | void *vaddr; |
385 | size_t size; |
386 | } drm_dma_handle_t; |
387 | |
388 | /** |
389 | * Buffer entry. There is one of this for each buffer size order. |
390 | */ |
391 | struct drm_buf_entry { |
392 | int buf_size; /**< size */ |
393 | int buf_count; /**< number of buffers */ |
394 | struct drm_buf *buflist; /**< buffer list */ |
395 | int seg_count; |
396 | int page_order; |
397 | struct drm_dma_handle **seglist; |
398 | |
399 | struct drm_freelist freelist; |
400 | }; |
401 | |
402 | /* Event queued up for userspace to read */ |
403 | struct drm_pending_event { |
404 | struct drm_event *event; |
405 | struct list_head link; |
406 | struct drm_file *file_priv; |
407 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
408 | we deliver the event, for tracing only */ |
409 | void (*destroy)(struct drm_pending_event *event); |
410 | }; |
411 | |
412 | /** File private data */ |
413 | struct drm_file { |
414 | int authenticated; |
415 | pid_t pid; |
416 | uid_t uid; |
417 | drm_magic_t magic; |
418 | unsigned long ioctl_count; |
419 | struct list_head lhead; |
420 | struct drm_minor *minor; |
421 | unsigned long lock_count; |
422 | |
423 | /** Mapping of mm object handles to object pointers. */ |
424 | struct idr object_idr; |
425 | /** Lock for synchronization of access to object_idr. */ |
426 | spinlock_t table_lock; |
427 | |
428 | struct file *filp; |
429 | void *driver_priv; |
430 | |
431 | int is_master; /* this file private is a master for a minor */ |
432 | struct drm_master *master; /* master this node is currently associated with |
433 | N.B. not always minor->master */ |
434 | struct list_head fbs; |
435 | |
436 | wait_queue_head_t event_wait; |
437 | struct list_head event_list; |
438 | int event_space; |
439 | }; |
440 | |
441 | /** Wait queue */ |
442 | struct drm_queue { |
443 | atomic_t use_count; /**< Outstanding uses (+1) */ |
444 | atomic_t finalization; /**< Finalization in progress */ |
445 | atomic_t block_count; /**< Count of processes waiting */ |
446 | atomic_t block_read; /**< Queue blocked for reads */ |
447 | wait_queue_head_t read_queue; /**< Processes waiting on block_read */ |
448 | atomic_t block_write; /**< Queue blocked for writes */ |
449 | wait_queue_head_t write_queue; /**< Processes waiting on block_write */ |
450 | atomic_t total_queued; /**< Total queued statistic */ |
451 | atomic_t total_flushed; /**< Total flushes statistic */ |
452 | atomic_t total_locks; /**< Total locks statistics */ |
453 | enum drm_ctx_flags flags; /**< Context preserving and 2D-only */ |
454 | struct drm_waitlist waitlist; /**< Pending buffers */ |
455 | wait_queue_head_t flush_queue; /**< Processes waiting until flush */ |
456 | }; |
457 | |
458 | /** |
459 | * Lock data. |
460 | */ |
461 | struct drm_lock_data { |
462 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
463 | /** Private of lock holder's file (NULL=kernel) */ |
464 | struct drm_file *file_priv; |
465 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
466 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
467 | spinlock_t spinlock; |
468 | uint32_t kernel_waiters; |
469 | uint32_t user_waiters; |
470 | int idle_has_lock; |
471 | }; |
472 | |
473 | /** |
474 | * DMA data. |
475 | */ |
476 | struct drm_device_dma { |
477 | |
478 | struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ |
479 | int buf_count; /**< total number of buffers */ |
480 | struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ |
481 | int seg_count; |
482 | int page_count; /**< number of pages */ |
483 | unsigned long *pagelist; /**< page list */ |
484 | unsigned long byte_count; |
485 | enum { |
486 | _DRM_DMA_USE_AGP = 0x01, |
487 | _DRM_DMA_USE_SG = 0x02, |
488 | _DRM_DMA_USE_FB = 0x04, |
489 | _DRM_DMA_USE_PCI_RO = 0x08 |
490 | } flags; |
491 | |
492 | }; |
493 | |
494 | /** |
495 | * AGP memory entry. Stored as a doubly linked list. |
496 | */ |
497 | struct drm_agp_mem { |
498 | unsigned long handle; /**< handle */ |
499 | DRM_AGP_MEM *memory; |
500 | unsigned long bound; /**< address */ |
501 | int pages; |
502 | struct list_head head; |
503 | }; |
504 | |
505 | /** |
506 | * AGP data. |
507 | * |
508 | * \sa drm_agp_init() and drm_device::agp. |
509 | */ |
510 | struct drm_agp_head { |
511 | DRM_AGP_KERN agp_info; /**< AGP device information */ |
512 | struct list_head memory; |
513 | unsigned long mode; /**< AGP mode */ |
514 | struct agp_bridge_data *bridge; |
515 | int enabled; /**< whether the AGP bus as been enabled */ |
516 | int acquired; /**< whether the AGP device has been acquired */ |
517 | unsigned long base; |
518 | int agp_mtrr; |
519 | int cant_use_aperture; |
520 | unsigned long page_mask; |
521 | }; |
522 | |
523 | /** |
524 | * Scatter-gather memory. |
525 | */ |
526 | struct drm_sg_mem { |
527 | unsigned long handle; |
528 | void *virtual; |
529 | int pages; |
530 | struct page **pagelist; |
531 | dma_addr_t *busaddr; |
532 | }; |
533 | |
534 | struct drm_sigdata { |
535 | int context; |
536 | struct drm_hw_lock *lock; |
537 | }; |
538 | |
539 | |
540 | /** |
541 | * Kernel side of a mapping |
542 | */ |
543 | struct drm_local_map { |
544 | resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ |
545 | unsigned long size; /**< Requested physical size (bytes) */ |
546 | enum drm_map_type type; /**< Type of memory to map */ |
547 | enum drm_map_flags flags; /**< Flags */ |
548 | void *handle; /**< User-space: "Handle" to pass to mmap() */ |
549 | /**< Kernel-space: kernel-virtual address */ |
550 | int mtrr; /**< MTRR slot used */ |
551 | }; |
552 | |
553 | typedef struct drm_local_map drm_local_map_t; |
554 | |
555 | /** |
556 | * Mappings list |
557 | */ |
558 | struct drm_map_list { |
559 | struct list_head head; /**< list head */ |
560 | struct drm_hash_item hash; |
561 | struct drm_local_map *map; /**< mapping */ |
562 | uint64_t user_token; |
563 | struct drm_master *master; |
564 | struct drm_mm_node *file_offset_node; /**< fake offset */ |
565 | }; |
566 | |
567 | /** |
568 | * Context handle list |
569 | */ |
570 | struct drm_ctx_list { |
571 | struct list_head head; /**< list head */ |
572 | drm_context_t handle; /**< context handle */ |
573 | struct drm_file *tag; /**< associated fd private data */ |
574 | }; |
575 | |
576 | /* location of GART table */ |
577 | #define DRM_ATI_GART_MAIN 1 |
578 | #define DRM_ATI_GART_FB 2 |
579 | |
580 | #define DRM_ATI_GART_PCI 1 |
581 | #define DRM_ATI_GART_PCIE 2 |
582 | #define DRM_ATI_GART_IGP 3 |
583 | |
584 | struct drm_ati_pcigart_info { |
585 | int gart_table_location; |
586 | int gart_reg_if; |
587 | void *addr; |
588 | dma_addr_t bus_addr; |
589 | dma_addr_t table_mask; |
590 | struct drm_dma_handle *table_handle; |
591 | struct drm_local_map mapping; |
592 | int table_size; |
593 | }; |
594 | |
595 | /** |
596 | * GEM specific mm private for tracking GEM objects |
597 | */ |
598 | struct drm_gem_mm { |
599 | struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */ |
600 | struct drm_open_hash offset_hash; /**< User token hash table for maps */ |
601 | }; |
602 | |
603 | /** |
604 | * This structure defines the drm_mm memory object, which will be used by the |
605 | * DRM for its buffer objects. |
606 | */ |
607 | struct drm_gem_object { |
608 | /** Reference count of this object */ |
609 | struct kref refcount; |
610 | |
611 | /** Handle count of this object. Each handle also holds a reference */ |
612 | atomic_t handle_count; /* number of handles on this object */ |
613 | |
614 | /** Related drm device */ |
615 | struct drm_device *dev; |
616 | |
617 | /** File representing the shmem storage */ |
618 | struct file *filp; |
619 | |
620 | /* Mapping info for this object */ |
621 | struct drm_map_list map_list; |
622 | |
623 | /** |
624 | * Size of the object, in bytes. Immutable over the object's |
625 | * lifetime. |
626 | */ |
627 | size_t size; |
628 | |
629 | /** |
630 | * Global name for this object, starts at 1. 0 means unnamed. |
631 | * Access is covered by the object_name_lock in the related drm_device |
632 | */ |
633 | int name; |
634 | |
635 | /** |
636 | * Memory domains. These monitor which caches contain read/write data |
637 | * related to the object. When transitioning from one set of domains |
638 | * to another, the driver is called to ensure that caches are suitably |
639 | * flushed and invalidated |
640 | */ |
641 | uint32_t read_domains; |
642 | uint32_t write_domain; |
643 | |
644 | /** |
645 | * While validating an exec operation, the |
646 | * new read/write domain values are computed here. |
647 | * They will be transferred to the above values |
648 | * at the point that any cache flushing occurs |
649 | */ |
650 | uint32_t pending_read_domains; |
651 | uint32_t pending_write_domain; |
652 | |
653 | void *driver_private; |
654 | }; |
655 | |
656 | #include "drm_crtc.h" |
657 | |
658 | /* per-master structure */ |
659 | struct drm_master { |
660 | |
661 | struct kref refcount; /* refcount for this master */ |
662 | |
663 | struct list_head head; /**< each minor contains a list of masters */ |
664 | struct drm_minor *minor; /**< link back to minor we are a master for */ |
665 | |
666 | char *unique; /**< Unique identifier: e.g., busid */ |
667 | int unique_len; /**< Length of unique field */ |
668 | int unique_size; /**< amount allocated */ |
669 | |
670 | int blocked; /**< Blocked due to VC switch? */ |
671 | |
672 | /** \name Authentication */ |
673 | /*@{ */ |
674 | struct drm_open_hash magiclist; |
675 | struct list_head magicfree; |
676 | /*@} */ |
677 | |
678 | struct drm_lock_data lock; /**< Information on hardware lock */ |
679 | |
680 | void *driver_priv; /**< Private structure for driver to use */ |
681 | }; |
682 | |
683 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
684 | * in initial implementation. |
685 | */ |
686 | #define DRM_VBLANKTIME_RBSIZE 2 |
687 | |
688 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
689 | #define DRM_CALLED_FROM_VBLIRQ 1 |
690 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) |
691 | #define DRM_VBLANKTIME_INVBL (1 << 1) |
692 | |
693 | /* get_scanout_position() return flags */ |
694 | #define DRM_SCANOUTPOS_VALID (1 << 0) |
695 | #define DRM_SCANOUTPOS_INVBL (1 << 1) |
696 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
697 | |
698 | struct drm_bus { |
699 | int bus_type; |
700 | int (*get_irq)(struct drm_device *dev); |
701 | const char *(*get_name)(struct drm_device *dev); |
702 | int (*set_busid)(struct drm_device *dev, struct drm_master *master); |
703 | int (*set_unique)(struct drm_device *dev, struct drm_master *master, |
704 | struct drm_unique *unique); |
705 | int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p); |
706 | /* hooks that are for PCI */ |
707 | int (*agp_init)(struct drm_device *dev); |
708 | |
709 | }; |
710 | |
711 | /** |
712 | * DRM driver structure. This structure represent the common code for |
713 | * a family of cards. There will one drm_device for each card present |
714 | * in this family |
715 | */ |
716 | struct drm_driver { |
717 | int (*load) (struct drm_device *, unsigned long flags); |
718 | int (*firstopen) (struct drm_device *); |
719 | int (*open) (struct drm_device *, struct drm_file *); |
720 | void (*preclose) (struct drm_device *, struct drm_file *file_priv); |
721 | void (*postclose) (struct drm_device *, struct drm_file *); |
722 | void (*lastclose) (struct drm_device *); |
723 | int (*unload) (struct drm_device *); |
724 | int (*suspend) (struct drm_device *, pm_message_t state); |
725 | int (*resume) (struct drm_device *); |
726 | int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); |
727 | int (*dma_quiescent) (struct drm_device *); |
728 | int (*context_dtor) (struct drm_device *dev, int context); |
729 | |
730 | /** |
731 | * get_vblank_counter - get raw hardware vblank counter |
732 | * @dev: DRM device |
733 | * @crtc: counter to fetch |
734 | * |
735 | * Driver callback for fetching a raw hardware vblank counter |
736 | * for @crtc. If a device doesn't have a hardware counter, the |
737 | * driver can simply return the value of drm_vblank_count and |
738 | * make the enable_vblank() and disable_vblank() hooks into no-ops, |
739 | * leaving interrupts enabled at all times. |
740 | * |
741 | * Wraparound handling and loss of events due to modesetting is dealt |
742 | * with in the DRM core code. |
743 | * |
744 | * RETURNS |
745 | * Raw vblank counter value. |
746 | */ |
747 | u32 (*get_vblank_counter) (struct drm_device *dev, int crtc); |
748 | |
749 | /** |
750 | * enable_vblank - enable vblank interrupt events |
751 | * @dev: DRM device |
752 | * @crtc: which irq to enable |
753 | * |
754 | * Enable vblank interrupts for @crtc. If the device doesn't have |
755 | * a hardware vblank counter, this routine should be a no-op, since |
756 | * interrupts will have to stay on to keep the count accurate. |
757 | * |
758 | * RETURNS |
759 | * Zero on success, appropriate errno if the given @crtc's vblank |
760 | * interrupt cannot be enabled. |
761 | */ |
762 | int (*enable_vblank) (struct drm_device *dev, int crtc); |
763 | |
764 | /** |
765 | * disable_vblank - disable vblank interrupt events |
766 | * @dev: DRM device |
767 | * @crtc: which irq to enable |
768 | * |
769 | * Disable vblank interrupts for @crtc. If the device doesn't have |
770 | * a hardware vblank counter, this routine should be a no-op, since |
771 | * interrupts will have to stay on to keep the count accurate. |
772 | */ |
773 | void (*disable_vblank) (struct drm_device *dev, int crtc); |
774 | |
775 | /** |
776 | * Called by \c drm_device_is_agp. Typically used to determine if a |
777 | * card is really attached to AGP or not. |
778 | * |
779 | * \param dev DRM device handle |
780 | * |
781 | * \returns |
782 | * One of three values is returned depending on whether or not the |
783 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP |
784 | * (return of 1), or may or may not be AGP (return of 2). |
785 | */ |
786 | int (*device_is_agp) (struct drm_device *dev); |
787 | |
788 | /** |
789 | * Called by vblank timestamping code. |
790 | * |
791 | * Return the current display scanout position from a crtc. |
792 | * |
793 | * \param dev DRM device. |
794 | * \param crtc Id of the crtc to query. |
795 | * \param *vpos Target location for current vertical scanout position. |
796 | * \param *hpos Target location for current horizontal scanout position. |
797 | * |
798 | * Returns vpos as a positive number while in active scanout area. |
799 | * Returns vpos as a negative number inside vblank, counting the number |
800 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline |
801 | * until start of active scanout / end of vblank." |
802 | * |
803 | * \return Flags, or'ed together as follows: |
804 | * |
805 | * DRM_SCANOUTPOS_VALID = Query successful. |
806 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
807 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of |
808 | * this flag means that returned position may be offset by a constant |
809 | * but unknown small number of scanlines wrt. real scanout position. |
810 | * |
811 | */ |
812 | int (*get_scanout_position) (struct drm_device *dev, int crtc, |
813 | int *vpos, int *hpos); |
814 | |
815 | /** |
816 | * Called by \c drm_get_last_vbltimestamp. Should return a precise |
817 | * timestamp when the most recent VBLANK interval ended or will end. |
818 | * |
819 | * Specifically, the timestamp in @vblank_time should correspond as |
820 | * closely as possible to the time when the first video scanline of |
821 | * the video frame after the end of VBLANK will start scanning out, |
822 | * the time immmediately after end of the VBLANK interval. If the |
823 | * @crtc is currently inside VBLANK, this will be a time in the future. |
824 | * If the @crtc is currently scanning out a frame, this will be the |
825 | * past start time of the current scanout. This is meant to adhere |
826 | * to the OpenML OML_sync_control extension specification. |
827 | * |
828 | * \param dev dev DRM device handle. |
829 | * \param crtc crtc for which timestamp should be returned. |
830 | * \param *max_error Maximum allowable timestamp error in nanoseconds. |
831 | * Implementation should strive to provide timestamp |
832 | * with an error of at most *max_error nanoseconds. |
833 | * Returns true upper bound on error for timestamp. |
834 | * \param *vblank_time Target location for returned vblank timestamp. |
835 | * \param flags 0 = Defaults, no special treatment needed. |
836 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank |
837 | * irq handler. Some drivers need to apply some workarounds |
838 | * for gpu-specific vblank irq quirks if flag is set. |
839 | * |
840 | * \returns |
841 | * Zero if timestamping isn't supported in current display mode or a |
842 | * negative number on failure. A positive status code on success, |
843 | * which describes how the vblank_time timestamp was computed. |
844 | */ |
845 | int (*get_vblank_timestamp) (struct drm_device *dev, int crtc, |
846 | int *max_error, |
847 | struct timeval *vblank_time, |
848 | unsigned flags); |
849 | |
850 | /* these have to be filled in */ |
851 | |
852 | irqreturn_t(*irq_handler) (DRM_IRQ_ARGS); |
853 | void (*irq_preinstall) (struct drm_device *dev); |
854 | int (*irq_postinstall) (struct drm_device *dev); |
855 | void (*irq_uninstall) (struct drm_device *dev); |
856 | void (*reclaim_buffers) (struct drm_device *dev, |
857 | struct drm_file * file_priv); |
858 | void (*reclaim_buffers_locked) (struct drm_device *dev, |
859 | struct drm_file *file_priv); |
860 | void (*reclaim_buffers_idlelocked) (struct drm_device *dev, |
861 | struct drm_file *file_priv); |
862 | void (*set_version) (struct drm_device *dev, |
863 | struct drm_set_version *sv); |
864 | |
865 | /* Master routines */ |
866 | int (*master_create)(struct drm_device *dev, struct drm_master *master); |
867 | void (*master_destroy)(struct drm_device *dev, struct drm_master *master); |
868 | /** |
869 | * master_set is called whenever the minor master is set. |
870 | * master_drop is called whenever the minor master is dropped. |
871 | */ |
872 | |
873 | int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, |
874 | bool from_open); |
875 | void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, |
876 | bool from_release); |
877 | |
878 | int (*debugfs_init)(struct drm_minor *minor); |
879 | void (*debugfs_cleanup)(struct drm_minor *minor); |
880 | |
881 | /** |
882 | * Driver-specific constructor for drm_gem_objects, to set up |
883 | * obj->driver_private. |
884 | * |
885 | * Returns 0 on success. |
886 | */ |
887 | int (*gem_init_object) (struct drm_gem_object *obj); |
888 | void (*gem_free_object) (struct drm_gem_object *obj); |
889 | |
890 | /* vga arb irq handler */ |
891 | void (*vgaarb_irq)(struct drm_device *dev, bool state); |
892 | |
893 | /* dumb alloc support */ |
894 | int (*dumb_create)(struct drm_file *file_priv, |
895 | struct drm_device *dev, |
896 | struct drm_mode_create_dumb *args); |
897 | int (*dumb_map_offset)(struct drm_file *file_priv, |
898 | struct drm_device *dev, uint32_t handle, |
899 | uint64_t *offset); |
900 | int (*dumb_destroy)(struct drm_file *file_priv, |
901 | struct drm_device *dev, |
902 | uint32_t handle); |
903 | |
904 | /* Driver private ops for this object */ |
905 | struct vm_operations_struct *gem_vm_ops; |
906 | |
907 | int major; |
908 | int minor; |
909 | int patchlevel; |
910 | char *name; |
911 | char *desc; |
912 | char *date; |
913 | |
914 | u32 driver_features; |
915 | int dev_priv_size; |
916 | struct drm_ioctl_desc *ioctls; |
917 | int num_ioctls; |
918 | struct file_operations fops; |
919 | union { |
920 | struct pci_driver *pci; |
921 | struct platform_device *platform_device; |
922 | struct usb_driver *usb; |
923 | } kdriver; |
924 | struct drm_bus *bus; |
925 | |
926 | /* List of devices hanging off this driver */ |
927 | struct list_head device_list; |
928 | }; |
929 | |
930 | #define DRM_MINOR_UNASSIGNED 0 |
931 | #define DRM_MINOR_LEGACY 1 |
932 | #define DRM_MINOR_CONTROL 2 |
933 | #define DRM_MINOR_RENDER 3 |
934 | |
935 | |
936 | /** |
937 | * debugfs node list. This structure represents a debugfs file to |
938 | * be created by the drm core |
939 | */ |
940 | struct drm_debugfs_list { |
941 | const char *name; /** file name */ |
942 | int (*show)(struct seq_file*, void*); /** show callback */ |
943 | u32 driver_features; /**< Required driver features for this entry */ |
944 | }; |
945 | |
946 | /** |
947 | * debugfs node structure. This structure represents a debugfs file. |
948 | */ |
949 | struct drm_debugfs_node { |
950 | struct list_head list; |
951 | struct drm_minor *minor; |
952 | struct drm_debugfs_list *debugfs_ent; |
953 | struct dentry *dent; |
954 | }; |
955 | |
956 | /** |
957 | * Info file list entry. This structure represents a debugfs or proc file to |
958 | * be created by the drm core |
959 | */ |
960 | struct drm_info_list { |
961 | const char *name; /** file name */ |
962 | int (*show)(struct seq_file*, void*); /** show callback */ |
963 | u32 driver_features; /**< Required driver features for this entry */ |
964 | void *data; |
965 | }; |
966 | |
967 | /** |
968 | * debugfs node structure. This structure represents a debugfs file. |
969 | */ |
970 | struct drm_info_node { |
971 | struct list_head list; |
972 | struct drm_minor *minor; |
973 | struct drm_info_list *info_ent; |
974 | struct dentry *dent; |
975 | }; |
976 | |
977 | /** |
978 | * DRM minor structure. This structure represents a drm minor number. |
979 | */ |
980 | struct drm_minor { |
981 | int index; /**< Minor device number */ |
982 | int type; /**< Control or render */ |
983 | dev_t device; /**< Device number for mknod */ |
984 | struct device kdev; /**< Linux device */ |
985 | struct drm_device *dev; |
986 | |
987 | struct proc_dir_entry *proc_root; /**< proc directory entry */ |
988 | struct drm_info_node proc_nodes; |
989 | struct dentry *debugfs_root; |
990 | struct drm_info_node debugfs_nodes; |
991 | |
992 | struct drm_master *master; /* currently active master for this node */ |
993 | struct list_head master_list; |
994 | struct drm_mode_group mode_group; |
995 | }; |
996 | |
997 | /* mode specified on the command line */ |
998 | struct drm_cmdline_mode { |
999 | bool specified; |
1000 | bool refresh_specified; |
1001 | bool bpp_specified; |
1002 | int xres, yres; |
1003 | int bpp; |
1004 | int refresh; |
1005 | bool rb; |
1006 | bool interlace; |
1007 | bool cvt; |
1008 | bool margins; |
1009 | enum drm_connector_force force; |
1010 | }; |
1011 | |
1012 | |
1013 | struct drm_pending_vblank_event { |
1014 | struct drm_pending_event base; |
1015 | int pipe; |
1016 | struct drm_event_vblank event; |
1017 | }; |
1018 | |
1019 | /** |
1020 | * DRM device structure. This structure represent a complete card that |
1021 | * may contain multiple heads. |
1022 | */ |
1023 | struct drm_device { |
1024 | struct list_head driver_item; /**< list of devices per driver */ |
1025 | char *devname; /**< For /proc/interrupts */ |
1026 | int if_version; /**< Highest interface version set */ |
1027 | |
1028 | /** \name Locks */ |
1029 | /*@{ */ |
1030 | spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */ |
1031 | struct mutex struct_mutex; /**< For others */ |
1032 | /*@} */ |
1033 | |
1034 | /** \name Usage Counters */ |
1035 | /*@{ */ |
1036 | int open_count; /**< Outstanding files open */ |
1037 | atomic_t ioctl_count; /**< Outstanding IOCTLs pending */ |
1038 | atomic_t vma_count; /**< Outstanding vma areas open */ |
1039 | int buf_use; /**< Buffers in use -- cannot alloc */ |
1040 | atomic_t buf_alloc; /**< Buffer allocation in progress */ |
1041 | /*@} */ |
1042 | |
1043 | /** \name Performance counters */ |
1044 | /*@{ */ |
1045 | unsigned long counters; |
1046 | enum drm_stat_type types[15]; |
1047 | atomic_t counts[15]; |
1048 | /*@} */ |
1049 | |
1050 | struct list_head filelist; |
1051 | |
1052 | /** \name Memory management */ |
1053 | /*@{ */ |
1054 | struct list_head maplist; /**< Linked list of regions */ |
1055 | int map_count; /**< Number of mappable regions */ |
1056 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
1057 | |
1058 | /** \name Context handle management */ |
1059 | /*@{ */ |
1060 | struct list_head ctxlist; /**< Linked list of context handles */ |
1061 | int ctx_count; /**< Number of context handles */ |
1062 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1063 | |
1064 | struct idr ctx_idr; |
1065 | |
1066 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
1067 | |
1068 | /*@} */ |
1069 | |
1070 | /** \name DMA queues (contexts) */ |
1071 | /*@{ */ |
1072 | int queue_count; /**< Number of active DMA queues */ |
1073 | int queue_reserved; /**< Number of reserved DMA queues */ |
1074 | int queue_slots; /**< Actual length of queuelist */ |
1075 | struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */ |
1076 | struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
1077 | /*@} */ |
1078 | |
1079 | /** \name Context support */ |
1080 | /*@{ */ |
1081 | int irq_enabled; /**< True if irq handler is enabled */ |
1082 | __volatile__ long context_flag; /**< Context swapping flag */ |
1083 | __volatile__ long interrupt_flag; /**< Interruption handler flag */ |
1084 | __volatile__ long dma_flag; /**< DMA dispatch flag */ |
1085 | wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ |
1086 | int last_checked; /**< Last context checked for DMA */ |
1087 | int last_context; /**< Last current context */ |
1088 | unsigned long last_switch; /**< jiffies at last context switch */ |
1089 | /*@} */ |
1090 | |
1091 | struct work_struct work; |
1092 | /** \name VBLANK IRQ support */ |
1093 | /*@{ */ |
1094 | |
1095 | /* |
1096 | * At load time, disabling the vblank interrupt won't be allowed since |
1097 | * old clients may not call the modeset ioctl and therefore misbehave. |
1098 | * Once the modeset ioctl *has* been called though, we can safely |
1099 | * disable them when unused. |
1100 | */ |
1101 | int vblank_disable_allowed; |
1102 | |
1103 | wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ |
1104 | atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ |
1105 | struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ |
1106 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
1107 | spinlock_t vbl_lock; |
1108 | atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ |
1109 | u32 *last_vblank; /* protected by dev->vbl_lock, used */ |
1110 | /* for wraparound handling */ |
1111 | int *vblank_enabled; /* so we don't call enable more than |
1112 | once per disable */ |
1113 | int *vblank_inmodeset; /* Display driver is setting mode */ |
1114 | u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ |
1115 | struct timer_list vblank_disable_timer; |
1116 | |
1117 | u32 max_vblank_count; /**< size of vblank counter register */ |
1118 | |
1119 | /** |
1120 | * List of events |
1121 | */ |
1122 | struct list_head vblank_event_list; |
1123 | spinlock_t event_lock; |
1124 | |
1125 | /*@} */ |
1126 | cycles_t ctx_start; |
1127 | cycles_t lck_start; |
1128 | |
1129 | struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */ |
1130 | wait_queue_head_t buf_readers; /**< Processes waiting to read */ |
1131 | wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */ |
1132 | |
1133 | struct drm_agp_head *agp; /**< AGP data */ |
1134 | |
1135 | struct device *dev; /**< Device structure */ |
1136 | struct pci_dev *pdev; /**< PCI device structure */ |
1137 | int pci_vendor; /**< PCI vendor id */ |
1138 | int pci_device; /**< PCI device id */ |
1139 | #ifdef __alpha__ |
1140 | struct pci_controller *hose; |
1141 | #endif |
1142 | |
1143 | struct platform_device *platformdev; /**< Platform device struture */ |
1144 | struct usb_device *usbdev; |
1145 | |
1146 | struct drm_sg_mem *sg; /**< Scatter gather memory */ |
1147 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
1148 | void *dev_private; /**< device private data */ |
1149 | void *mm_private; |
1150 | struct address_space *dev_mapping; |
1151 | struct drm_sigdata sigdata; /**< For block_all_signals */ |
1152 | sigset_t sigmask; |
1153 | |
1154 | struct drm_driver *driver; |
1155 | struct drm_local_map *agp_buffer_map; |
1156 | unsigned int agp_buffer_token; |
1157 | struct drm_minor *control; /**< Control node for card */ |
1158 | struct drm_minor *primary; /**< render type primary screen head */ |
1159 | |
1160 | struct drm_mode_config mode_config; /**< Current mode config */ |
1161 | |
1162 | /** \name GEM information */ |
1163 | /*@{ */ |
1164 | spinlock_t object_name_lock; |
1165 | struct idr object_name_idr; |
1166 | /*@} */ |
1167 | int switch_power_state; |
1168 | }; |
1169 | |
1170 | #define DRM_SWITCH_POWER_ON 0 |
1171 | #define DRM_SWITCH_POWER_OFF 1 |
1172 | #define DRM_SWITCH_POWER_CHANGING 2 |
1173 | |
1174 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
1175 | int feature) |
1176 | { |
1177 | return ((dev->driver->driver_features & feature) ? 1 : 0); |
1178 | } |
1179 | |
1180 | static inline int drm_dev_to_irq(struct drm_device *dev) |
1181 | { |
1182 | return dev->driver->bus->get_irq(dev); |
1183 | } |
1184 | |
1185 | |
1186 | #if __OS_HAS_AGP |
1187 | static inline int drm_core_has_AGP(struct drm_device *dev) |
1188 | { |
1189 | return drm_core_check_feature(dev, DRIVER_USE_AGP); |
1190 | } |
1191 | #else |
1192 | #define drm_core_has_AGP(dev) (0) |
1193 | #endif |
1194 | |
1195 | #if __OS_HAS_MTRR |
1196 | static inline int drm_core_has_MTRR(struct drm_device *dev) |
1197 | { |
1198 | return drm_core_check_feature(dev, DRIVER_USE_MTRR); |
1199 | } |
1200 | |
1201 | #define DRM_MTRR_WC MTRR_TYPE_WRCOMB |
1202 | |
1203 | static inline int drm_mtrr_add(unsigned long offset, unsigned long size, |
1204 | unsigned int flags) |
1205 | { |
1206 | return mtrr_add(offset, size, flags, 1); |
1207 | } |
1208 | |
1209 | static inline int drm_mtrr_del(int handle, unsigned long offset, |
1210 | unsigned long size, unsigned int flags) |
1211 | { |
1212 | return mtrr_del(handle, offset, size); |
1213 | } |
1214 | |
1215 | #else |
1216 | #define drm_core_has_MTRR(dev) (0) |
1217 | |
1218 | #define DRM_MTRR_WC 0 |
1219 | |
1220 | static inline int drm_mtrr_add(unsigned long offset, unsigned long size, |
1221 | unsigned int flags) |
1222 | { |
1223 | return 0; |
1224 | } |
1225 | |
1226 | static inline int drm_mtrr_del(int handle, unsigned long offset, |
1227 | unsigned long size, unsigned int flags) |
1228 | { |
1229 | return 0; |
1230 | } |
1231 | #endif |
1232 | |
1233 | /******************************************************************/ |
1234 | /** \name Internal function definitions */ |
1235 | /*@{*/ |
1236 | |
1237 | /* Driver support (drm_drv.h) */ |
1238 | extern long drm_ioctl(struct file *filp, |
1239 | unsigned int cmd, unsigned long arg); |
1240 | extern long drm_compat_ioctl(struct file *filp, |
1241 | unsigned int cmd, unsigned long arg); |
1242 | extern int drm_lastclose(struct drm_device *dev); |
1243 | |
1244 | /* Device support (drm_fops.h) */ |
1245 | extern struct mutex drm_global_mutex; |
1246 | extern int drm_open(struct inode *inode, struct file *filp); |
1247 | extern int drm_stub_open(struct inode *inode, struct file *filp); |
1248 | extern int drm_fasync(int fd, struct file *filp, int on); |
1249 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
1250 | size_t count, loff_t *offset); |
1251 | extern int drm_release(struct inode *inode, struct file *filp); |
1252 | |
1253 | /* Mapping support (drm_vm.h) */ |
1254 | extern int drm_mmap(struct file *filp, struct vm_area_struct *vma); |
1255 | extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma); |
1256 | extern void drm_vm_open_locked(struct vm_area_struct *vma); |
1257 | extern void drm_vm_close_locked(struct vm_area_struct *vma); |
1258 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
1259 | |
1260 | /* Memory management support (drm_memory.h) */ |
1261 | #include "drm_memory.h" |
1262 | extern void drm_mem_init(void); |
1263 | extern int drm_mem_info(char *buf, char **start, off_t offset, |
1264 | int request, int *eof, void *data); |
1265 | extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); |
1266 | |
1267 | extern void drm_free_agp(DRM_AGP_MEM * handle, int pages); |
1268 | extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start); |
1269 | extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev, |
1270 | struct page **pages, |
1271 | unsigned long num_pages, |
1272 | uint32_t gtt_offset, |
1273 | uint32_t type); |
1274 | extern int drm_unbind_agp(DRM_AGP_MEM * handle); |
1275 | |
1276 | /* Misc. IOCTL support (drm_ioctl.h) */ |
1277 | extern int drm_irq_by_busid(struct drm_device *dev, void *data, |
1278 | struct drm_file *file_priv); |
1279 | extern int drm_getunique(struct drm_device *dev, void *data, |
1280 | struct drm_file *file_priv); |
1281 | extern int drm_setunique(struct drm_device *dev, void *data, |
1282 | struct drm_file *file_priv); |
1283 | extern int drm_getmap(struct drm_device *dev, void *data, |
1284 | struct drm_file *file_priv); |
1285 | extern int drm_getclient(struct drm_device *dev, void *data, |
1286 | struct drm_file *file_priv); |
1287 | extern int drm_getstats(struct drm_device *dev, void *data, |
1288 | struct drm_file *file_priv); |
1289 | extern int drm_getcap(struct drm_device *dev, void *data, |
1290 | struct drm_file *file_priv); |
1291 | extern int drm_setversion(struct drm_device *dev, void *data, |
1292 | struct drm_file *file_priv); |
1293 | extern int drm_noop(struct drm_device *dev, void *data, |
1294 | struct drm_file *file_priv); |
1295 | |
1296 | /* Context IOCTL support (drm_context.h) */ |
1297 | extern int drm_resctx(struct drm_device *dev, void *data, |
1298 | struct drm_file *file_priv); |
1299 | extern int drm_addctx(struct drm_device *dev, void *data, |
1300 | struct drm_file *file_priv); |
1301 | extern int drm_modctx(struct drm_device *dev, void *data, |
1302 | struct drm_file *file_priv); |
1303 | extern int drm_getctx(struct drm_device *dev, void *data, |
1304 | struct drm_file *file_priv); |
1305 | extern int drm_switchctx(struct drm_device *dev, void *data, |
1306 | struct drm_file *file_priv); |
1307 | extern int drm_newctx(struct drm_device *dev, void *data, |
1308 | struct drm_file *file_priv); |
1309 | extern int drm_rmctx(struct drm_device *dev, void *data, |
1310 | struct drm_file *file_priv); |
1311 | |
1312 | extern int drm_ctxbitmap_init(struct drm_device *dev); |
1313 | extern void drm_ctxbitmap_cleanup(struct drm_device *dev); |
1314 | extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); |
1315 | |
1316 | extern int drm_setsareactx(struct drm_device *dev, void *data, |
1317 | struct drm_file *file_priv); |
1318 | extern int drm_getsareactx(struct drm_device *dev, void *data, |
1319 | struct drm_file *file_priv); |
1320 | |
1321 | /* Authentication IOCTL support (drm_auth.h) */ |
1322 | extern int drm_getmagic(struct drm_device *dev, void *data, |
1323 | struct drm_file *file_priv); |
1324 | extern int drm_authmagic(struct drm_device *dev, void *data, |
1325 | struct drm_file *file_priv); |
1326 | |
1327 | /* Cache management (drm_cache.c) */ |
1328 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); |
1329 | |
1330 | /* Locking IOCTL support (drm_lock.h) */ |
1331 | extern int drm_lock(struct drm_device *dev, void *data, |
1332 | struct drm_file *file_priv); |
1333 | extern int drm_unlock(struct drm_device *dev, void *data, |
1334 | struct drm_file *file_priv); |
1335 | extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context); |
1336 | extern void drm_idlelock_take(struct drm_lock_data *lock_data); |
1337 | extern void drm_idlelock_release(struct drm_lock_data *lock_data); |
1338 | |
1339 | /* |
1340 | * These are exported to drivers so that they can implement fencing using |
1341 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. |
1342 | */ |
1343 | |
1344 | extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv); |
1345 | |
1346 | /* Buffer management support (drm_bufs.h) */ |
1347 | extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request); |
1348 | extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request); |
1349 | extern int drm_addmap(struct drm_device *dev, resource_size_t offset, |
1350 | unsigned int size, enum drm_map_type type, |
1351 | enum drm_map_flags flags, struct drm_local_map **map_ptr); |
1352 | extern int drm_addmap_ioctl(struct drm_device *dev, void *data, |
1353 | struct drm_file *file_priv); |
1354 | extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map); |
1355 | extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map); |
1356 | extern int drm_rmmap_ioctl(struct drm_device *dev, void *data, |
1357 | struct drm_file *file_priv); |
1358 | extern int drm_addbufs(struct drm_device *dev, void *data, |
1359 | struct drm_file *file_priv); |
1360 | extern int drm_infobufs(struct drm_device *dev, void *data, |
1361 | struct drm_file *file_priv); |
1362 | extern int drm_markbufs(struct drm_device *dev, void *data, |
1363 | struct drm_file *file_priv); |
1364 | extern int drm_freebufs(struct drm_device *dev, void *data, |
1365 | struct drm_file *file_priv); |
1366 | extern int drm_mapbufs(struct drm_device *dev, void *data, |
1367 | struct drm_file *file_priv); |
1368 | extern int drm_order(unsigned long size); |
1369 | |
1370 | /* DMA support (drm_dma.h) */ |
1371 | extern int drm_dma_setup(struct drm_device *dev); |
1372 | extern void drm_dma_takedown(struct drm_device *dev); |
1373 | extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf); |
1374 | extern void drm_core_reclaim_buffers(struct drm_device *dev, |
1375 | struct drm_file *filp); |
1376 | |
1377 | /* IRQ support (drm_irq.h) */ |
1378 | extern int drm_control(struct drm_device *dev, void *data, |
1379 | struct drm_file *file_priv); |
1380 | extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); |
1381 | extern int drm_irq_install(struct drm_device *dev); |
1382 | extern int drm_irq_uninstall(struct drm_device *dev); |
1383 | extern void drm_driver_irq_preinstall(struct drm_device *dev); |
1384 | extern void drm_driver_irq_postinstall(struct drm_device *dev); |
1385 | extern void drm_driver_irq_uninstall(struct drm_device *dev); |
1386 | |
1387 | extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); |
1388 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
1389 | struct drm_file *filp); |
1390 | extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); |
1391 | extern u32 drm_vblank_count(struct drm_device *dev, int crtc); |
1392 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, |
1393 | struct timeval *vblanktime); |
1394 | extern bool drm_handle_vblank(struct drm_device *dev, int crtc); |
1395 | extern int drm_vblank_get(struct drm_device *dev, int crtc); |
1396 | extern void drm_vblank_put(struct drm_device *dev, int crtc); |
1397 | extern void drm_vblank_off(struct drm_device *dev, int crtc); |
1398 | extern void drm_vblank_cleanup(struct drm_device *dev); |
1399 | extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, |
1400 | struct timeval *tvblank, unsigned flags); |
1401 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
1402 | int crtc, int *max_error, |
1403 | struct timeval *vblank_time, |
1404 | unsigned flags, |
1405 | struct drm_crtc *refcrtc); |
1406 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); |
1407 | |
1408 | extern bool |
1409 | drm_mode_parse_command_line_for_connector(const char *mode_option, |
1410 | struct drm_connector *connector, |
1411 | struct drm_cmdline_mode *mode); |
1412 | |
1413 | extern struct drm_display_mode * |
1414 | drm_mode_create_from_cmdline_mode(struct drm_device *dev, |
1415 | struct drm_cmdline_mode *cmd); |
1416 | |
1417 | /* Modesetting support */ |
1418 | extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); |
1419 | extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc); |
1420 | extern int drm_modeset_ctl(struct drm_device *dev, void *data, |
1421 | struct drm_file *file_priv); |
1422 | |
1423 | /* AGP/GART support (drm_agpsupport.h) */ |
1424 | extern struct drm_agp_head *drm_agp_init(struct drm_device *dev); |
1425 | extern int drm_agp_acquire(struct drm_device *dev); |
1426 | extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, |
1427 | struct drm_file *file_priv); |
1428 | extern int drm_agp_release(struct drm_device *dev); |
1429 | extern int drm_agp_release_ioctl(struct drm_device *dev, void *data, |
1430 | struct drm_file *file_priv); |
1431 | extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); |
1432 | extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data, |
1433 | struct drm_file *file_priv); |
1434 | extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); |
1435 | extern int drm_agp_info_ioctl(struct drm_device *dev, void *data, |
1436 | struct drm_file *file_priv); |
1437 | extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); |
1438 | extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, |
1439 | struct drm_file *file_priv); |
1440 | extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); |
1441 | extern int drm_agp_free_ioctl(struct drm_device *dev, void *data, |
1442 | struct drm_file *file_priv); |
1443 | extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); |
1444 | extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, |
1445 | struct drm_file *file_priv); |
1446 | extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); |
1447 | extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data, |
1448 | struct drm_file *file_priv); |
1449 | |
1450 | /* Stub support (drm_stub.h) */ |
1451 | extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
1452 | struct drm_file *file_priv); |
1453 | extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, |
1454 | struct drm_file *file_priv); |
1455 | struct drm_master *drm_master_create(struct drm_minor *minor); |
1456 | extern struct drm_master *drm_master_get(struct drm_master *master); |
1457 | extern void drm_master_put(struct drm_master **master); |
1458 | |
1459 | extern void drm_put_dev(struct drm_device *dev); |
1460 | extern int drm_put_minor(struct drm_minor **minor); |
1461 | extern unsigned int drm_debug; |
1462 | |
1463 | extern unsigned int drm_vblank_offdelay; |
1464 | extern unsigned int drm_timestamp_precision; |
1465 | |
1466 | extern struct class *drm_class; |
1467 | extern struct proc_dir_entry *drm_proc_root; |
1468 | extern struct dentry *drm_debugfs_root; |
1469 | |
1470 | extern struct idr drm_minors_idr; |
1471 | |
1472 | extern struct drm_local_map *drm_getsarea(struct drm_device *dev); |
1473 | |
1474 | /* Proc support (drm_proc.h) */ |
1475 | extern int drm_proc_init(struct drm_minor *minor, int minor_id, |
1476 | struct proc_dir_entry *root); |
1477 | extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root); |
1478 | |
1479 | /* Debugfs support */ |
1480 | #if defined(CONFIG_DEBUG_FS) |
1481 | extern int drm_debugfs_init(struct drm_minor *minor, int minor_id, |
1482 | struct dentry *root); |
1483 | extern int drm_debugfs_create_files(struct drm_info_list *files, int count, |
1484 | struct dentry *root, struct drm_minor *minor); |
1485 | extern int drm_debugfs_remove_files(struct drm_info_list *files, int count, |
1486 | struct drm_minor *minor); |
1487 | extern int drm_debugfs_cleanup(struct drm_minor *minor); |
1488 | #endif |
1489 | |
1490 | /* Info file support */ |
1491 | extern int drm_name_info(struct seq_file *m, void *data); |
1492 | extern int drm_vm_info(struct seq_file *m, void *data); |
1493 | extern int drm_queues_info(struct seq_file *m, void *data); |
1494 | extern int drm_bufs_info(struct seq_file *m, void *data); |
1495 | extern int drm_vblank_info(struct seq_file *m, void *data); |
1496 | extern int drm_clients_info(struct seq_file *m, void* data); |
1497 | extern int drm_gem_name_info(struct seq_file *m, void *data); |
1498 | |
1499 | #if DRM_DEBUG_CODE |
1500 | extern int drm_vma_info(struct seq_file *m, void *data); |
1501 | #endif |
1502 | |
1503 | /* Scatter Gather Support (drm_scatter.h) */ |
1504 | extern void drm_sg_cleanup(struct drm_sg_mem * entry); |
1505 | extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, |
1506 | struct drm_file *file_priv); |
1507 | extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); |
1508 | extern int drm_sg_free(struct drm_device *dev, void *data, |
1509 | struct drm_file *file_priv); |
1510 | |
1511 | /* ATI PCIGART support (ati_pcigart.h) */ |
1512 | extern int drm_ati_pcigart_init(struct drm_device *dev, |
1513 | struct drm_ati_pcigart_info * gart_info); |
1514 | extern int drm_ati_pcigart_cleanup(struct drm_device *dev, |
1515 | struct drm_ati_pcigart_info * gart_info); |
1516 | |
1517 | extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, |
1518 | size_t align); |
1519 | extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); |
1520 | extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah); |
1521 | |
1522 | /* sysfs support (drm_sysfs.c) */ |
1523 | struct drm_sysfs_class; |
1524 | extern struct class *drm_sysfs_create(struct module *owner, char *name); |
1525 | extern void drm_sysfs_destroy(void); |
1526 | extern int drm_sysfs_device_add(struct drm_minor *minor); |
1527 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
1528 | extern void drm_sysfs_device_remove(struct drm_minor *minor); |
1529 | extern char *drm_get_connector_status_name(enum drm_connector_status status); |
1530 | extern int drm_sysfs_connector_add(struct drm_connector *connector); |
1531 | extern void drm_sysfs_connector_remove(struct drm_connector *connector); |
1532 | |
1533 | /* Graphics Execution Manager library functions (drm_gem.c) */ |
1534 | int drm_gem_init(struct drm_device *dev); |
1535 | void drm_gem_destroy(struct drm_device *dev); |
1536 | void drm_gem_object_release(struct drm_gem_object *obj); |
1537 | void drm_gem_object_free(struct kref *kref); |
1538 | struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, |
1539 | size_t size); |
1540 | int drm_gem_object_init(struct drm_device *dev, |
1541 | struct drm_gem_object *obj, size_t size); |
1542 | void drm_gem_object_handle_free(struct drm_gem_object *obj); |
1543 | void drm_gem_vm_open(struct vm_area_struct *vma); |
1544 | void drm_gem_vm_close(struct vm_area_struct *vma); |
1545 | int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
1546 | |
1547 | #include "drm_global.h" |
1548 | |
1549 | static inline void |
1550 | drm_gem_object_reference(struct drm_gem_object *obj) |
1551 | { |
1552 | kref_get(&obj->refcount); |
1553 | } |
1554 | |
1555 | static inline void |
1556 | drm_gem_object_unreference(struct drm_gem_object *obj) |
1557 | { |
1558 | if (obj != NULL) |
1559 | kref_put(&obj->refcount, drm_gem_object_free); |
1560 | } |
1561 | |
1562 | static inline void |
1563 | drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) |
1564 | { |
1565 | if (obj != NULL) { |
1566 | struct drm_device *dev = obj->dev; |
1567 | mutex_lock(&dev->struct_mutex); |
1568 | kref_put(&obj->refcount, drm_gem_object_free); |
1569 | mutex_unlock(&dev->struct_mutex); |
1570 | } |
1571 | } |
1572 | |
1573 | int drm_gem_handle_create(struct drm_file *file_priv, |
1574 | struct drm_gem_object *obj, |
1575 | u32 *handlep); |
1576 | int drm_gem_handle_delete(struct drm_file *filp, u32 handle); |
1577 | |
1578 | static inline void |
1579 | drm_gem_object_handle_reference(struct drm_gem_object *obj) |
1580 | { |
1581 | drm_gem_object_reference(obj); |
1582 | atomic_inc(&obj->handle_count); |
1583 | } |
1584 | |
1585 | static inline void |
1586 | drm_gem_object_handle_unreference(struct drm_gem_object *obj) |
1587 | { |
1588 | if (obj == NULL) |
1589 | return; |
1590 | |
1591 | if (atomic_read(&obj->handle_count) == 0) |
1592 | return; |
1593 | /* |
1594 | * Must bump handle count first as this may be the last |
1595 | * ref, in which case the object would disappear before we |
1596 | * checked for a name |
1597 | */ |
1598 | if (atomic_dec_and_test(&obj->handle_count)) |
1599 | drm_gem_object_handle_free(obj); |
1600 | drm_gem_object_unreference(obj); |
1601 | } |
1602 | |
1603 | static inline void |
1604 | drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) |
1605 | { |
1606 | if (obj == NULL) |
1607 | return; |
1608 | |
1609 | if (atomic_read(&obj->handle_count) == 0) |
1610 | return; |
1611 | |
1612 | /* |
1613 | * Must bump handle count first as this may be the last |
1614 | * ref, in which case the object would disappear before we |
1615 | * checked for a name |
1616 | */ |
1617 | |
1618 | if (atomic_dec_and_test(&obj->handle_count)) |
1619 | drm_gem_object_handle_free(obj); |
1620 | drm_gem_object_unreference_unlocked(obj); |
1621 | } |
1622 | |
1623 | struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, |
1624 | struct drm_file *filp, |
1625 | u32 handle); |
1626 | int drm_gem_close_ioctl(struct drm_device *dev, void *data, |
1627 | struct drm_file *file_priv); |
1628 | int drm_gem_flink_ioctl(struct drm_device *dev, void *data, |
1629 | struct drm_file *file_priv); |
1630 | int drm_gem_open_ioctl(struct drm_device *dev, void *data, |
1631 | struct drm_file *file_priv); |
1632 | void drm_gem_open(struct drm_device *dev, struct drm_file *file_private); |
1633 | void drm_gem_release(struct drm_device *dev, struct drm_file *file_private); |
1634 | |
1635 | extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev); |
1636 | extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); |
1637 | extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev); |
1638 | |
1639 | static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, |
1640 | unsigned int token) |
1641 | { |
1642 | struct drm_map_list *_entry; |
1643 | list_for_each_entry(_entry, &dev->maplist, head) |
1644 | if (_entry->user_token == token) |
1645 | return _entry->map; |
1646 | return NULL; |
1647 | } |
1648 | |
1649 | static __inline__ void drm_core_dropmap(struct drm_local_map *map) |
1650 | { |
1651 | } |
1652 | |
1653 | #include "drm_mem_util.h" |
1654 | |
1655 | extern int drm_fill_in_dev(struct drm_device *dev, |
1656 | const struct pci_device_id *ent, |
1657 | struct drm_driver *driver); |
1658 | int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type); |
1659 | /*@}*/ |
1660 | |
1661 | /* PCI section */ |
1662 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) |
1663 | { |
1664 | if (dev->driver->device_is_agp != NULL) { |
1665 | int err = (*dev->driver->device_is_agp) (dev); |
1666 | |
1667 | if (err != 2) { |
1668 | return err; |
1669 | } |
1670 | } |
1671 | |
1672 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); |
1673 | } |
1674 | |
1675 | |
1676 | static __inline__ int drm_pci_device_is_pcie(struct drm_device *dev) |
1677 | { |
1678 | return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); |
1679 | } |
1680 | |
1681 | |
1682 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
1683 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); |
1684 | extern int drm_get_pci_dev(struct pci_dev *pdev, |
1685 | const struct pci_device_id *ent, |
1686 | struct drm_driver *driver); |
1687 | |
1688 | |
1689 | /* platform section */ |
1690 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); |
1691 | extern void drm_platform_exit(struct drm_driver *driver, struct platform_device *platform_device); |
1692 | |
1693 | extern int drm_get_platform_dev(struct platform_device *pdev, |
1694 | struct drm_driver *driver); |
1695 | |
1696 | #endif /* __KERNEL__ */ |
1697 | #endif |
1698 |
Branches:
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ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9