FreeBSD/Linux Kernel Cross Reference
sys/dev/drm2/drmP.h
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 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #ifndef _DRM_P_H_
39 #define _DRM_P_H_
40
41 #if defined(_KERNEL) || defined(__KERNEL__)
42
43 #include <sys/param.h>
44 #include <sys/queue.h>
45 #include <sys/malloc.h>
46 #include <sys/kernel.h>
47 #include <sys/ktr.h>
48 #include <sys/module.h>
49 #include <sys/systm.h>
50 #include <sys/conf.h>
51 #include <sys/sglist.h>
52 #include <sys/stat.h>
53 #include <sys/priv.h>
54 #include <sys/proc.h>
55 #include <sys/limits.h>
56 #include <sys/lock.h>
57 #include <sys/fcntl.h>
58 #include <sys/uio.h>
59 #include <sys/filio.h>
60 #include <sys/rwlock.h>
61 #include <sys/selinfo.h>
62 #include <sys/sysctl.h>
63 #include <sys/bus.h>
64 #include <sys/queue.h>
65 #include <sys/signalvar.h>
66 #include <sys/poll.h>
67 #include <sys/sbuf.h>
68 #include <sys/taskqueue.h>
69 #include <sys/tree.h>
70 #include <sys/vmmeter.h>
71 #include <vm/vm.h>
72 #include <vm/pmap.h>
73 #include <vm/vm_extern.h>
74 #include <vm/vm_kern.h>
75 #include <vm/vm_map.h>
76 #include <vm/vm_object.h>
77 #include <vm/vm_page.h>
78 #include <vm/vm_pager.h>
79 #include <vm/vm_param.h>
80 #include <vm/vm_phys.h>
81 #include <machine/bus.h>
82 #include <machine/resource.h>
83 #if defined(__i386__) || defined(__amd64__)
84 #include <machine/specialreg.h>
85 #endif
86 #include <machine/sysarch.h>
87 #include <sys/endian.h>
88 #include <sys/mman.h>
89 #include <sys/rman.h>
90 #include <sys/memrange.h>
91 #include <dev/agp/agpvar.h>
92 #include <sys/agpio.h>
93 #include <sys/mutex.h>
94 #include <dev/pci/pcivar.h>
95 #include <dev/pci/pcireg.h>
96 #include <sys/selinfo.h>
97 #include <sys/bus.h>
98
99 #include <dev/drm2/drm.h>
100 #include <dev/drm2/drm_sarea.h>
101
102 #include <dev/drm2/drm_atomic.h>
103 #include <dev/drm2/drm_linux_list.h>
104 #include <dev/drm2/drm_gem_names.h>
105
106 #include <dev/drm2/drm_os_freebsd.h>
107
108 #if defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))
109 #define __OS_HAS_AGP 1
110 #else
111 #define __OS_HAS_AGP 0
112 #endif
113 #if defined(CONFIG_MTRR)
114 #define __OS_HAS_MTRR 1
115 #else
116 #define __OS_HAS_MTRR 0
117 #endif
118
119 struct drm_file;
120 struct drm_device;
121
122 #include <dev/drm2/drm_hashtab.h>
123 #include <dev/drm2/drm_mm.h>
124
125 #include "opt_drm.h"
126 #include "opt_syscons.h"
127 #ifdef DRM_DEBUG
128 #undef DRM_DEBUG
129 #define DRM_DEBUG_DEFAULT_ON 1
130 #endif /* DRM_DEBUG */
131
132 #define DRM_DEBUGBITS_DEBUG 0x1
133 #define DRM_DEBUGBITS_KMS 0x2
134 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
135
136 #undef DRM_LINUX
137 #define DRM_LINUX 0
138
139 /***********************************************************************/
140 /** \name DRM template customization defaults */
141 /*@{*/
142
143 /* driver capabilities and requirements mask */
144 #define DRIVER_USE_AGP 0x1
145 #define DRIVER_REQUIRE_AGP 0x2
146 #define DRIVER_USE_MTRR 0x4
147 #define DRIVER_PCI_DMA 0x8
148 #define DRIVER_SG 0x10
149 #define DRIVER_HAVE_DMA 0x20
150 #define DRIVER_HAVE_IRQ 0x40
151 #define DRIVER_IRQ_SHARED 0x80
152 #define DRIVER_IRQ_VBL 0x100
153 #define DRIVER_DMA_QUEUE 0x200
154 #define DRIVER_FB_DMA 0x400
155 #define DRIVER_IRQ_VBL2 0x800
156 #define DRIVER_GEM 0x1000
157 #define DRIVER_MODESET 0x2000
158 #define DRIVER_PRIME 0x4000
159
160 #define DRIVER_BUS_PCI 0x1
161 #define DRIVER_BUS_PLATFORM 0x2
162 #define DRIVER_BUS_USB 0x3
163
164 /***********************************************************************/
165 /** \name Begin the DRM... */
166 /*@{*/
167
168 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
169 also include looping detection. */
170
171 #define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
172 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
173 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
174 #define DRM_LOOPING_LIMIT 5000000
175 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
176 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
177
178 #define DRM_FLAG_DEBUG 0x01
179
180 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
181 #define DRM_MAP_HASH_OFFSET 0x10000000
182
183 /*@}*/
184
185 /***********************************************************************/
186 /** \name Macros to make printk easier */
187 /*@{*/
188
189 /**
190 * Error output.
191 *
192 * \param fmt printf() like format string.
193 * \param arg arguments
194 */
195 #define DRM_ERROR(fmt, ...) \
196 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
197 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
198
199 #define DRM_WARNING(fmt, ...) printf("warning: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
200 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
201
202 /**
203 * Debug output.
204 *
205 * \param fmt printf() like format string.
206 * \param arg arguments
207 */
208 #define DRM_DEBUG(fmt, ...) do { \
209 if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \
210 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
211 __func__ , ##__VA_ARGS__); \
212 } while (0)
213
214 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
215 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
216 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
217 __func__ , ##__VA_ARGS__); \
218 } while (0)
219
220 #define DRM_DEBUG_KMS(fmt, ...) do { \
221 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
222 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
223 __func__ , ##__VA_ARGS__); \
224 } while (0)
225
226 #define DRM_LOG(fmt, ...) do { \
227 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
228 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \
229 __func__ , ##__VA_ARGS__); \
230 } while (0)
231
232 #define DRM_LOG_KMS(fmt, ...) do { \
233 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
234 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\
235 __func__ , ##__VA_ARGS__); \
236 } while (0)
237
238 #define DRM_LOG_MODE(fmt, ...) do { \
239 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
240 printf("[" DRM_NAME "]:pid%d:%s]" fmt, DRM_CURRENTPID, \
241 __func__ , ##__VA_ARGS__); \
242 } while (0)
243
244 #define DRM_LOG_DRIVER(fmt, ...) do { \
245 if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \
246 printf("[" DRM_NAME "]:KMS:pid%d:%s]" fmt, DRM_CURRENTPID,\
247 __func__ , ##__VA_ARGS__); \
248 } while (0)
249
250 /*@}*/
251
252 /***********************************************************************/
253 /** \name Internal types and structures */
254 /*@{*/
255
256 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
257
258 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
259 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
260
261 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
262
263 /**
264 * Test that the hardware lock is held by the caller, returning otherwise.
265 *
266 * \param dev DRM device.
267 * \param filp file pointer of the caller.
268 */
269 #define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
270 do { \
271 if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
272 _file_priv->master->lock.file_priv != _file_priv) { \
273 DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
274 __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
275 _file_priv->master->lock.file_priv, _file_priv); \
276 return -EINVAL; \
277 } \
278 } while (0)
279
280 /**
281 * Ioctl function type.
282 *
283 * \param inode device inode.
284 * \param file_priv DRM file private pointer.
285 * \param cmd command.
286 * \param arg argument.
287 */
288 typedef int drm_ioctl_t(struct drm_device *dev, void *data,
289 struct drm_file *file_priv);
290
291 #define DRM_IOCTL_NR(n) ((n) & 0xff)
292 #define DRM_MAJOR 226
293
294 #define DRM_AUTH 0x1
295 #define DRM_MASTER 0x2
296 #define DRM_ROOT_ONLY 0x4
297 #define DRM_CONTROL_ALLOW 0x8
298 #define DRM_UNLOCKED 0x10
299
300 struct drm_ioctl_desc {
301 unsigned long cmd;
302 int flags;
303 drm_ioctl_t *func;
304 unsigned int cmd_drv;
305 };
306
307 /**
308 * Creates a driver or general drm_ioctl_desc array entry for the given
309 * ioctl, for use by drm_ioctl().
310 */
311
312 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
313 [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0}
314
315 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
316 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
317
318 struct drm_magic_entry {
319 struct list_head head;
320 struct drm_hash_item hash_item;
321 struct drm_file *priv;
322 };
323
324 /**
325 * DMA buffer.
326 */
327 struct drm_buf {
328 int idx; /**< Index into master buflist */
329 int total; /**< Buffer size */
330 int order; /**< log-base-2(total) */
331 int used; /**< Amount of buffer in use (for DMA) */
332 unsigned long offset; /**< Byte offset (used internally) */
333 void *address; /**< Address of buffer */
334 unsigned long bus_address; /**< Bus address of buffer */
335 struct drm_buf *next; /**< Kernel-only: used for free list */
336 __volatile__ int waiting; /**< On kernel DMA queue */
337 __volatile__ int pending; /**< On hardware DMA queue */
338 struct drm_file *file_priv; /**< Private of holding file descr */
339 int context; /**< Kernel queue for this buffer */
340 int while_locked; /**< Dispatch this buffer while locked */
341 enum {
342 DRM_LIST_NONE = 0,
343 DRM_LIST_FREE = 1,
344 DRM_LIST_WAIT = 2,
345 DRM_LIST_PEND = 3,
346 DRM_LIST_PRIO = 4,
347 DRM_LIST_RECLAIM = 5
348 } list; /**< Which list we're on */
349
350 int dev_priv_size; /**< Size of buffer private storage */
351 void *dev_private; /**< Per-buffer private storage */
352 };
353
354 struct drm_freelist {
355 int initialized; /**< Freelist in use */
356 atomic_t count; /**< Number of free buffers */
357 struct drm_buf *next; /**< End pointer */
358
359 #ifdef FREEBSD_NOTYET
360 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
361 #endif /* defined(FREEBSD_NOTYET) */
362 int low_mark; /**< Low water mark */
363 int high_mark; /**< High water mark */
364 #ifdef FREEBSD_NOTYET
365 atomic_t wfh; /**< If waiting for high mark */
366 spinlock_t lock;
367 #endif /* defined(FREEBSD_NOTYET) */
368 };
369
370 typedef struct drm_dma_handle {
371 void *vaddr;
372 bus_addr_t busaddr;
373 bus_dma_tag_t tag;
374 bus_dmamap_t map;
375 } drm_dma_handle_t;
376
377 /**
378 * Buffer entry. There is one of this for each buffer size order.
379 */
380 struct drm_buf_entry {
381 int buf_size; /**< size */
382 int buf_count; /**< number of buffers */
383 struct drm_buf *buflist; /**< buffer list */
384 int seg_count;
385 int page_order;
386 struct drm_dma_handle **seglist;
387
388 struct drm_freelist freelist;
389 };
390
391 /* Event queued up for userspace to read */
392 struct drm_pending_event {
393 struct drm_event *event;
394 struct list_head link;
395 struct drm_file *file_priv;
396 pid_t pid; /* pid of requester, no guarantee it's valid by the time
397 we deliver the event, for tracing only */
398 void (*destroy)(struct drm_pending_event *event);
399 };
400
401 /* initial implementaton using a linked list - todo hashtab */
402 struct drm_prime_file_private {
403 struct list_head head;
404 struct mtx lock;
405 };
406
407 struct drm_file {
408 int authenticated;
409 pid_t pid;
410 uid_t uid;
411 drm_magic_t magic;
412 unsigned long ioctl_count;
413 struct list_head lhead;
414 struct drm_minor *minor;
415 unsigned long lock_count;
416
417 void *driver_priv;
418 struct drm_gem_names object_names;
419
420 int is_master; /* this file private is a master for a minor */
421 struct drm_master *master; /* master this node is currently associated with
422 N.B. not always minor->master */
423 struct list_head fbs;
424
425 struct selinfo event_poll;
426 struct list_head event_list;
427 int event_space;
428
429 struct drm_prime_file_private prime;
430 };
431
432 /**
433 * Lock data.
434 */
435 struct drm_lock_data {
436 struct drm_hw_lock *hw_lock; /**< Hardware lock */
437 /** Private of lock holder's file (NULL=kernel) */
438 struct drm_file *file_priv;
439 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
440 unsigned long lock_time; /**< Time of last lock in jiffies */
441 struct mtx spinlock;
442 uint32_t kernel_waiters;
443 uint32_t user_waiters;
444 int idle_has_lock;
445 };
446
447 /**
448 * DMA data.
449 */
450 struct drm_device_dma {
451
452 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
453 int buf_count; /**< total number of buffers */
454 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
455 int seg_count;
456 int page_count; /**< number of pages */
457 unsigned long *pagelist; /**< page list */
458 unsigned long byte_count;
459 enum {
460 _DRM_DMA_USE_AGP = 0x01,
461 _DRM_DMA_USE_SG = 0x02,
462 _DRM_DMA_USE_FB = 0x04,
463 _DRM_DMA_USE_PCI_RO = 0x08
464 } flags;
465
466 };
467
468 /**
469 * AGP memory entry. Stored as a doubly linked list.
470 */
471 struct drm_agp_mem {
472 unsigned long handle; /**< handle */
473 DRM_AGP_MEM *memory;
474 unsigned long bound; /**< address */
475 int pages;
476 struct list_head head;
477 };
478
479 /**
480 * AGP data.
481 *
482 * \sa drm_agp_init() and drm_device::agp.
483 */
484 struct drm_agp_head {
485 DRM_AGP_KERN agp_info; /**< AGP device information */
486 struct list_head memory;
487 unsigned long mode; /**< AGP mode */
488 device_t bridge;
489 int enabled; /**< whether the AGP bus as been enabled */
490 int acquired; /**< whether the AGP device has been acquired */
491 unsigned long base;
492 int agp_mtrr;
493 int cant_use_aperture;
494 };
495
496 /**
497 * Scatter-gather memory.
498 */
499 struct drm_sg_mem {
500 void *vaddr;
501 vm_paddr_t *busaddr;
502 vm_pindex_t pages;
503 };
504
505 struct drm_sigdata {
506 int context;
507 struct drm_hw_lock *lock;
508 };
509
510 /**
511 * Kernel side of a mapping
512 */
513 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
514 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
515
516 struct drm_local_map {
517 resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
518 unsigned long size; /**< Requested physical size (bytes) */
519 enum drm_map_type type; /**< Type of memory to map */
520 enum drm_map_flags flags; /**< Flags */
521 void *handle; /**< User-space: "Handle" to pass to mmap() */
522 /**< Kernel-space: kernel-virtual address */
523 int mtrr; /**< MTRR slot used */
524
525 /* Private data */
526 drm_dma_handle_t *dmah;
527 };
528
529 typedef struct drm_local_map drm_local_map_t;
530
531 /**
532 * Mappings list
533 */
534 struct drm_map_list {
535 struct list_head head; /**< list head */
536 struct drm_hash_item hash;
537 struct drm_local_map *map; /**< mapping */
538 uint64_t user_token;
539 struct drm_master *master;
540 struct drm_mm_node *file_offset_node; /**< fake offset */
541 };
542
543 /**
544 * Context handle list
545 */
546 struct drm_ctx_list {
547 struct list_head head; /**< list head */
548 drm_context_t handle; /**< context handle */
549 struct drm_file *tag; /**< associated fd private data */
550 };
551
552 /* location of GART table */
553 #define DRM_ATI_GART_MAIN 1
554 #define DRM_ATI_GART_FB 2
555
556 #define DRM_ATI_GART_PCI 1
557 #define DRM_ATI_GART_PCIE 2
558 #define DRM_ATI_GART_IGP 3
559
560 struct drm_ati_pcigart_info {
561 int gart_table_location;
562 int gart_reg_if;
563 void *addr;
564 dma_addr_t bus_addr;
565 dma_addr_t table_mask;
566 struct drm_dma_handle *table_handle;
567 struct drm_local_map mapping;
568 int table_size;
569 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table FIXME */
570 };
571
572 /**
573 * GEM specific mm private for tracking GEM objects
574 */
575 struct drm_gem_mm {
576 struct unrhdr *idxunr;
577 struct drm_open_hash offset_hash; /**< User token hash table for maps */
578 };
579
580 /**
581 * This structure defines the drm_mm memory object, which will be used by the
582 * DRM for its buffer objects.
583 */
584 struct drm_gem_object {
585 /** Reference count of this object */
586 u_int refcount;
587
588 /** Handle count of this object. Each handle also holds a reference */
589 atomic_t handle_count; /* number of handles on this object */
590
591 /** Related drm device */
592 struct drm_device *dev;
593
594 /** File representing the shmem storage: filp in Linux parlance */
595 vm_object_t vm_obj;
596
597 /* Mapping info for this object */
598 bool on_map;
599 struct drm_hash_item map_list;
600
601 /**
602 * Size of the object, in bytes. Immutable over the object's
603 * lifetime.
604 */
605 size_t size;
606
607 /**
608 * Global name for this object, starts at 1. 0 means unnamed.
609 * Access is covered by the object_name_lock in the related drm_device
610 */
611 int name;
612
613 /**
614 * Memory domains. These monitor which caches contain read/write data
615 * related to the object. When transitioning from one set of domains
616 * to another, the driver is called to ensure that caches are suitably
617 * flushed and invalidated
618 */
619 uint32_t read_domains;
620 uint32_t write_domain;
621
622 /**
623 * While validating an exec operation, the
624 * new read/write domain values are computed here.
625 * They will be transferred to the above values
626 * at the point that any cache flushing occurs
627 */
628 uint32_t pending_read_domains;
629 uint32_t pending_write_domain;
630
631 void *driver_private;
632
633 #ifdef FREEBSD_NOTYET
634 /* dma buf exported from this GEM object */
635 struct dma_buf *export_dma_buf;
636
637 /* dma buf attachment backing this object */
638 struct dma_buf_attachment *import_attach;
639 #endif /* FREEBSD_NOTYET */
640 };
641
642 #include <dev/drm2/drm_crtc.h>
643
644 /* per-master structure */
645 struct drm_master {
646
647 u_int refcount; /* refcount for this master */
648
649 struct list_head head; /**< each minor contains a list of masters */
650 struct drm_minor *minor; /**< link back to minor we are a master for */
651
652 char *unique; /**< Unique identifier: e.g., busid */
653 int unique_len; /**< Length of unique field */
654 int unique_size; /**< amount allocated */
655
656 int blocked; /**< Blocked due to VC switch? */
657
658 /** \name Authentication */
659 /*@{ */
660 struct drm_open_hash magiclist;
661 struct list_head magicfree;
662 /*@} */
663
664 struct drm_lock_data lock; /**< Information on hardware lock */
665
666 void *driver_priv; /**< Private structure for driver to use */
667 };
668
669 /* Size of ringbuffer for vblank timestamps. Just double-buffer
670 * in initial implementation.
671 */
672 #define DRM_VBLANKTIME_RBSIZE 2
673
674 /* Flags and return codes for get_vblank_timestamp() driver function. */
675 #define DRM_CALLED_FROM_VBLIRQ 1
676 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
677 #define DRM_VBLANKTIME_INVBL (1 << 1)
678
679 /* get_scanout_position() return flags */
680 #define DRM_SCANOUTPOS_VALID (1 << 0)
681 #define DRM_SCANOUTPOS_INVBL (1 << 1)
682 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
683
684 struct drm_bus {
685 int bus_type;
686 int (*get_irq)(struct drm_device *dev);
687 void (*free_irq)(struct drm_device *dev);
688 const char *(*get_name)(struct drm_device *dev);
689 int (*set_busid)(struct drm_device *dev, struct drm_master *master);
690 int (*set_unique)(struct drm_device *dev, struct drm_master *master,
691 struct drm_unique *unique);
692 int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
693 /* hooks that are for PCI */
694 int (*agp_init)(struct drm_device *dev);
695
696 };
697
698 /**
699 * DRM driver structure. This structure represent the common code for
700 * a family of cards. There will one drm_device for each card present
701 * in this family
702 */
703 struct drm_driver {
704 int (*load) (struct drm_device *, unsigned long flags);
705 int (*firstopen) (struct drm_device *);
706 int (*open) (struct drm_device *, struct drm_file *);
707 void (*preclose) (struct drm_device *, struct drm_file *file_priv);
708 void (*postclose) (struct drm_device *, struct drm_file *);
709 void (*lastclose) (struct drm_device *);
710 int (*unload) (struct drm_device *);
711 int (*suspend) (struct drm_device *, pm_message_t state);
712 int (*resume) (struct drm_device *);
713 int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
714 int (*dma_quiescent) (struct drm_device *);
715 int (*context_dtor) (struct drm_device *dev, int context);
716
717 /**
718 * get_vblank_counter - get raw hardware vblank counter
719 * @dev: DRM device
720 * @crtc: counter to fetch
721 *
722 * Driver callback for fetching a raw hardware vblank counter for @crtc.
723 * If a device doesn't have a hardware counter, the driver can simply
724 * return the value of drm_vblank_count. The DRM core will account for
725 * missed vblank events while interrupts where disabled based on system
726 * timestamps.
727 *
728 * Wraparound handling and loss of events due to modesetting is dealt
729 * with in the DRM core code.
730 *
731 * RETURNS
732 * Raw vblank counter value.
733 */
734 u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
735
736 /**
737 * enable_vblank - enable vblank interrupt events
738 * @dev: DRM device
739 * @crtc: which irq to enable
740 *
741 * Enable vblank interrupts for @crtc. If the device doesn't have
742 * a hardware vblank counter, this routine should be a no-op, since
743 * interrupts will have to stay on to keep the count accurate.
744 *
745 * RETURNS
746 * Zero on success, appropriate errno if the given @crtc's vblank
747 * interrupt cannot be enabled.
748 */
749 int (*enable_vblank) (struct drm_device *dev, int crtc);
750
751 /**
752 * disable_vblank - disable vblank interrupt events
753 * @dev: DRM device
754 * @crtc: which irq to enable
755 *
756 * Disable vblank interrupts for @crtc. If the device doesn't have
757 * a hardware vblank counter, this routine should be a no-op, since
758 * interrupts will have to stay on to keep the count accurate.
759 */
760 void (*disable_vblank) (struct drm_device *dev, int crtc);
761
762 /**
763 * Called by \c drm_device_is_agp. Typically used to determine if a
764 * card is really attached to AGP or not.
765 *
766 * \param dev DRM device handle
767 *
768 * \returns
769 * One of three values is returned depending on whether or not the
770 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
771 * (return of 1), or may or may not be AGP (return of 2).
772 */
773 int (*device_is_agp) (struct drm_device *dev);
774
775 /**
776 * Called by vblank timestamping code.
777 *
778 * Return the current display scanout position from a crtc.
779 *
780 * \param dev DRM device.
781 * \param crtc Id of the crtc to query.
782 * \param *vpos Target location for current vertical scanout position.
783 * \param *hpos Target location for current horizontal scanout position.
784 *
785 * Returns vpos as a positive number while in active scanout area.
786 * Returns vpos as a negative number inside vblank, counting the number
787 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
788 * until start of active scanout / end of vblank."
789 *
790 * \return Flags, or'ed together as follows:
791 *
792 * DRM_SCANOUTPOS_VALID = Query successful.
793 * DRM_SCANOUTPOS_INVBL = Inside vblank.
794 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
795 * this flag means that returned position may be offset by a constant
796 * but unknown small number of scanlines wrt. real scanout position.
797 *
798 */
799 int (*get_scanout_position) (struct drm_device *dev, int crtc,
800 int *vpos, int *hpos);
801
802 /**
803 * Called by \c drm_get_last_vbltimestamp. Should return a precise
804 * timestamp when the most recent VBLANK interval ended or will end.
805 *
806 * Specifically, the timestamp in @vblank_time should correspond as
807 * closely as possible to the time when the first video scanline of
808 * the video frame after the end of VBLANK will start scanning out,
809 * the time immediately after end of the VBLANK interval. If the
810 * @crtc is currently inside VBLANK, this will be a time in the future.
811 * If the @crtc is currently scanning out a frame, this will be the
812 * past start time of the current scanout. This is meant to adhere
813 * to the OpenML OML_sync_control extension specification.
814 *
815 * \param dev dev DRM device handle.
816 * \param crtc crtc for which timestamp should be returned.
817 * \param *max_error Maximum allowable timestamp error in nanoseconds.
818 * Implementation should strive to provide timestamp
819 * with an error of at most *max_error nanoseconds.
820 * Returns true upper bound on error for timestamp.
821 * \param *vblank_time Target location for returned vblank timestamp.
822 * \param flags 0 = Defaults, no special treatment needed.
823 * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
824 * irq handler. Some drivers need to apply some workarounds
825 * for gpu-specific vblank irq quirks if flag is set.
826 *
827 * \returns
828 * Zero if timestamping isn't supported in current display mode or a
829 * negative number on failure. A positive status code on success,
830 * which describes how the vblank_time timestamp was computed.
831 */
832 int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
833 int *max_error,
834 struct timeval *vblank_time,
835 unsigned flags);
836
837 /* these have to be filled in */
838
839 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
840 void (*irq_preinstall) (struct drm_device *dev);
841 int (*irq_postinstall) (struct drm_device *dev);
842 void (*irq_uninstall) (struct drm_device *dev);
843 void (*set_version) (struct drm_device *dev,
844 struct drm_set_version *sv);
845
846 /* Master routines */
847 int (*master_create)(struct drm_device *dev, struct drm_master *master);
848 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
849 /**
850 * master_set is called whenever the minor master is set.
851 * master_drop is called whenever the minor master is dropped.
852 */
853
854 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
855 bool from_open);
856 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
857 bool from_release);
858
859 /**
860 * Driver-specific constructor for drm_gem_objects, to set up
861 * obj->driver_private.
862 *
863 * Returns 0 on success.
864 */
865 int (*gem_init_object) (struct drm_gem_object *obj);
866 void (*gem_free_object) (struct drm_gem_object *obj);
867 int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
868 void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
869
870 #ifdef FREEBSD_NOTYET
871 /* prime: */
872 /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
873 int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
874 uint32_t handle, uint32_t flags, int *prime_fd);
875 /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
876 int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
877 int prime_fd, uint32_t *handle);
878 /* export GEM -> dmabuf */
879 struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
880 struct drm_gem_object *obj, int flags);
881 /* import dmabuf -> GEM */
882 struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
883 struct dma_buf *dma_buf);
884 #endif /* defined(FREEBSD_NOTYET) */
885
886 /* dumb alloc support */
887 int (*dumb_create)(struct drm_file *file_priv,
888 struct drm_device *dev,
889 struct drm_mode_create_dumb *args);
890 int (*dumb_map_offset)(struct drm_file *file_priv,
891 struct drm_device *dev, uint32_t handle,
892 uint64_t *offset);
893 int (*dumb_destroy)(struct drm_file *file_priv,
894 struct drm_device *dev,
895 uint32_t handle);
896
897 /* Driver private ops for this object */
898 struct cdev_pager_ops *gem_pager_ops;
899
900 int (*sysctl_init)(struct drm_device *dev,
901 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
902 void (*sysctl_cleanup)(struct drm_device *dev);
903
904 int major;
905 int minor;
906 int patchlevel;
907 char *name;
908 char *desc;
909 char *date;
910
911 u32 driver_features;
912 int dev_priv_size;
913 struct drm_ioctl_desc *ioctls;
914 int num_ioctls;
915 struct drm_bus *bus;
916 #ifdef COMPAT_FREEBSD32
917 struct drm_ioctl_desc *compat_ioctls;
918 int *num_compat_ioctls;
919 #endif
920
921 int buf_priv_size;
922 };
923
924 #define DRM_MINOR_UNASSIGNED 0
925 #define DRM_MINOR_LEGACY 1
926 #define DRM_MINOR_CONTROL 2
927 #define DRM_MINOR_RENDER 3
928
929 /**
930 * DRM minor structure. This structure represents a drm minor number.
931 */
932 struct drm_minor {
933 int index; /**< Minor device number */
934 int type; /**< Control or render */
935 struct cdev *device; /**< Device number for mknod */
936 device_t kdev; /**< OS device */
937 struct drm_device *dev;
938
939 struct drm_master *master; /* currently active master for this node */
940 struct list_head master_list;
941 struct drm_mode_group mode_group;
942
943 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
944 };
945
946 /* mode specified on the command line */
947 struct drm_cmdline_mode {
948 bool specified;
949 bool refresh_specified;
950 bool bpp_specified;
951 int xres, yres;
952 int bpp;
953 int refresh;
954 bool rb;
955 bool interlace;
956 bool cvt;
957 bool margins;
958 enum drm_connector_force force;
959 };
960
961
962 struct drm_pending_vblank_event {
963 struct drm_pending_event base;
964 int pipe;
965 struct drm_event_vblank event;
966 };
967
968 /**
969 * DRM device structure. This structure represent a complete card that
970 * may contain multiple heads.
971 */
972 struct drm_device {
973 int if_version; /**< Highest interface version set */
974
975 /** \name Locks */
976 /*@{ */
977 struct mtx count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
978 struct sx dev_struct_lock; /**< For others */
979 /*@} */
980
981 /** \name Usage Counters */
982 /*@{ */
983 int open_count; /**< Outstanding files open */
984 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
985 atomic_t vma_count; /**< Outstanding vma areas open */
986 int buf_use; /**< Buffers in use -- cannot alloc */
987 atomic_t buf_alloc; /**< Buffer allocation in progress */
988 /*@} */
989
990 /** \name Performance counters */
991 /*@{ */
992 unsigned long counters;
993 enum drm_stat_type types[15];
994 atomic_t counts[15];
995 /*@} */
996
997 struct list_head filelist;
998
999 /** \name Memory management */
1000 /*@{ */
1001 struct list_head maplist; /**< Linked list of regions */
1002 int map_count; /**< Number of mappable regions */
1003 struct drm_open_hash map_hash; /**< User token hash table for maps */
1004
1005 /** \name Context handle management */
1006 /*@{ */
1007 struct list_head ctxlist; /**< Linked list of context handles */
1008 int ctx_count; /**< Number of context handles */
1009 struct mtx ctxlist_mutex; /**< For ctxlist */
1010 drm_local_map_t **context_sareas;
1011 int max_context;
1012 unsigned long *ctx_bitmap;
1013
1014 /*@} */
1015
1016 /** \name DMA support */
1017 /*@{ */
1018 struct drm_device_dma *dma; /**< Optional pointer for DMA support */
1019 /*@} */
1020
1021 /** \name Context support */
1022 /*@{ */
1023 int irq_enabled; /**< True if irq handler is enabled */
1024 atomic_t context_flag; /**< Context swapping flag */
1025 atomic_t interrupt_flag; /**< Interruption handler flag */
1026 atomic_t dma_flag; /**< DMA dispatch flag */
1027 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
1028 int last_checked; /**< Last context checked for DMA */
1029 int last_context; /**< Last current context */
1030 unsigned long last_switch; /**< jiffies at last context switch */
1031 /*@} */
1032
1033 /** \name VBLANK IRQ support */
1034 /*@{ */
1035
1036 /*
1037 * At load time, disabling the vblank interrupt won't be allowed since
1038 * old clients may not call the modeset ioctl and therefore misbehave.
1039 * Once the modeset ioctl *has* been called though, we can safely
1040 * disable them when unused.
1041 */
1042 int vblank_disable_allowed;
1043
1044 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
1045 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
1046 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
1047 struct mtx vbl_lock;
1048 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
1049 u32 *last_vblank; /* protected by dev->vbl_lock, used */
1050 /* for wraparound handling */
1051 int *vblank_enabled; /* so we don't call enable more than
1052 once per disable */
1053 int *vblank_inmodeset; /* Display driver is setting mode */
1054 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
1055 struct callout vblank_disable_callout;
1056
1057 u32 max_vblank_count; /**< size of vblank counter register */
1058
1059 /**
1060 * List of events
1061 */
1062 struct list_head vblank_event_list;
1063 struct mtx event_lock;
1064
1065 /*@} */
1066
1067 struct drm_agp_head *agp; /**< AGP data */
1068
1069 device_t dev; /* Device instance from newbus */
1070 uint16_t pci_device; /* PCI device id */
1071 uint16_t pci_vendor; /* PCI vendor id */
1072 uint16_t pci_subdevice; /* PCI subsystem device id */
1073 uint16_t pci_subvendor; /* PCI subsystem vendor id */
1074
1075 struct drm_sg_mem *sg; /**< Scatter gather memory */
1076 unsigned int num_crtcs; /**< Number of CRTCs on this device */
1077 void *dev_private; /**< device private data */
1078 void *mm_private;
1079 struct drm_sigdata sigdata; /**< For block_all_signals */
1080 sigset_t sigmask;
1081
1082 struct drm_driver *driver;
1083 struct drm_local_map *agp_buffer_map;
1084 unsigned int agp_buffer_token;
1085 struct drm_minor *control; /**< Control node for card */
1086 struct drm_minor *primary; /**< render type primary screen head */
1087
1088 struct drm_mode_config mode_config; /**< Current mode config */
1089
1090 /** \name GEM information */
1091 /*@{ */
1092 struct sx object_name_lock;
1093 struct drm_gem_names object_names;
1094 /*@} */
1095 int switch_power_state;
1096
1097 atomic_t unplugged; /* device has been unplugged or gone away */
1098
1099 /* Locks */
1100 struct mtx dma_lock; /* protects dev->dma */
1101 struct mtx irq_lock; /* protects irq condition checks */
1102
1103 /* Context support */
1104 int irq; /* Interrupt used by board */
1105 int msi_enabled; /* MSI enabled */
1106 int irqrid; /* Interrupt used by board */
1107 struct resource *irqr; /* Resource for interrupt used by board */
1108 void *irqh; /* Handle from bus_setup_intr */
1109
1110 /* Storage of resource pointers for drm_get_resource_* */
1111 #define DRM_MAX_PCI_RESOURCE 6
1112 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
1113 int pcirid[DRM_MAX_PCI_RESOURCE];
1114 struct mtx pcir_lock;
1115
1116 int pci_domain;
1117 int pci_bus;
1118 int pci_slot;
1119 int pci_func;
1120
1121 /* Sysctl support */
1122 struct drm_sysctl_info *sysctl;
1123 int sysctl_node_idx;
1124
1125 void *drm_ttm_bdev;
1126
1127 void *sysctl_private;
1128 char busid_str[128];
1129 int modesetting;
1130
1131 const drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
1132 };
1133
1134 #define DRM_SWITCH_POWER_ON 0
1135 #define DRM_SWITCH_POWER_OFF 1
1136 #define DRM_SWITCH_POWER_CHANGING 2
1137
1138 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1139 int feature)
1140 {
1141 return ((dev->driver->driver_features & feature) ? 1 : 0);
1142 }
1143
1144 static inline int drm_dev_to_irq(struct drm_device *dev)
1145 {
1146 return dev->driver->bus->get_irq(dev);
1147 }
1148
1149
1150 #if __OS_HAS_AGP
1151 static inline int drm_core_has_AGP(struct drm_device *dev)
1152 {
1153 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1154 }
1155 #else
1156 #define drm_core_has_AGP(dev) (0)
1157 #endif
1158
1159 #if __OS_HAS_MTRR
1160 static inline int drm_core_has_MTRR(struct drm_device *dev)
1161 {
1162 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
1163 }
1164
1165 #define DRM_MTRR_WC MDF_WRITECOMBINE
1166
1167 int drm_mtrr_add(unsigned long offset, unsigned long size, unsigned int flags);
1168 int drm_mtrr_del(int handle, unsigned long offset, unsigned long size, unsigned int flags);
1169
1170 #else
1171 #define drm_core_has_MTRR(dev) (0)
1172
1173 #define DRM_MTRR_WC 0
1174
1175 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
1176 unsigned int flags)
1177 {
1178 return 0;
1179 }
1180
1181 static inline int drm_mtrr_del(int handle, unsigned long offset,
1182 unsigned long size, unsigned int flags)
1183 {
1184 return 0;
1185 }
1186 #endif
1187
1188 /******************************************************************/
1189 /** \name Internal function definitions */
1190 /*@{*/
1191
1192 /* Driver support (drm_drv.h) */
1193 d_ioctl_t drm_ioctl;
1194 extern int drm_lastclose(struct drm_device *dev);
1195
1196 /* Device support (drm_fops.h) */
1197 extern struct sx drm_global_mutex;
1198 d_open_t drm_open;
1199 d_read_t drm_read;
1200 extern void drm_release(void *data);
1201
1202 /* Mapping support (drm_vm.h) */
1203 d_mmap_t drm_mmap;
1204 int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset,
1205 vm_size_t size, struct vm_object **obj_res, int nprot);
1206 d_poll_t drm_poll;
1207
1208
1209 /* Misc. IOCTL support (drm_ioctl.h) */
1210 extern int drm_irq_by_busid(struct drm_device *dev, void *data,
1211 struct drm_file *file_priv);
1212 extern int drm_getunique(struct drm_device *dev, void *data,
1213 struct drm_file *file_priv);
1214 extern int drm_setunique(struct drm_device *dev, void *data,
1215 struct drm_file *file_priv);
1216 extern int drm_getmap(struct drm_device *dev, void *data,
1217 struct drm_file *file_priv);
1218 extern int drm_getclient(struct drm_device *dev, void *data,
1219 struct drm_file *file_priv);
1220 extern int drm_getstats(struct drm_device *dev, void *data,
1221 struct drm_file *file_priv);
1222 extern int drm_getcap(struct drm_device *dev, void *data,
1223 struct drm_file *file_priv);
1224 extern int drm_setversion(struct drm_device *dev, void *data,
1225 struct drm_file *file_priv);
1226 extern int drm_noop(struct drm_device *dev, void *data,
1227 struct drm_file *file_priv);
1228
1229 /* Context IOCTL support (drm_context.h) */
1230 extern int drm_resctx(struct drm_device *dev, void *data,
1231 struct drm_file *file_priv);
1232 extern int drm_addctx(struct drm_device *dev, void *data,
1233 struct drm_file *file_priv);
1234 extern int drm_modctx(struct drm_device *dev, void *data,
1235 struct drm_file *file_priv);
1236 extern int drm_getctx(struct drm_device *dev, void *data,
1237 struct drm_file *file_priv);
1238 extern int drm_switchctx(struct drm_device *dev, void *data,
1239 struct drm_file *file_priv);
1240 extern int drm_newctx(struct drm_device *dev, void *data,
1241 struct drm_file *file_priv);
1242 extern int drm_rmctx(struct drm_device *dev, void *data,
1243 struct drm_file *file_priv);
1244
1245 extern int drm_ctxbitmap_init(struct drm_device *dev);
1246 extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
1247 extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1248
1249 extern int drm_setsareactx(struct drm_device *dev, void *data,
1250 struct drm_file *file_priv);
1251 extern int drm_getsareactx(struct drm_device *dev, void *data,
1252 struct drm_file *file_priv);
1253
1254 /* Authentication IOCTL support (drm_auth.h) */
1255 extern int drm_getmagic(struct drm_device *dev, void *data,
1256 struct drm_file *file_priv);
1257 extern int drm_authmagic(struct drm_device *dev, void *data,
1258 struct drm_file *file_priv);
1259 extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
1260
1261 /* Cache management (drm_cache.c) */
1262 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1263 void drm_clflush_virt_range(char *addr, unsigned long length);
1264
1265 /* Locking IOCTL support (drm_lock.h) */
1266 extern int drm_lock(struct drm_device *dev, void *data,
1267 struct drm_file *file_priv);
1268 extern int drm_unlock(struct drm_device *dev, void *data,
1269 struct drm_file *file_priv);
1270 extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
1271 extern void drm_idlelock_take(struct drm_lock_data *lock_data);
1272 extern void drm_idlelock_release(struct drm_lock_data *lock_data);
1273
1274 /*
1275 * These are exported to drivers so that they can implement fencing using
1276 * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
1277 */
1278
1279 extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
1280
1281 /* Buffer management support (drm_bufs.h) */
1282 extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
1283 extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
1284 extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
1285 unsigned int size, enum drm_map_type type,
1286 enum drm_map_flags flags, struct drm_local_map **map_ptr);
1287 extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv);
1289 extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
1290 extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
1291 extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1292 struct drm_file *file_priv);
1293 extern int drm_addbufs(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv);
1295 extern int drm_infobufs(struct drm_device *dev, void *data,
1296 struct drm_file *file_priv);
1297 extern int drm_markbufs(struct drm_device *dev, void *data,
1298 struct drm_file *file_priv);
1299 extern int drm_freebufs(struct drm_device *dev, void *data,
1300 struct drm_file *file_priv);
1301 extern int drm_mapbufs(struct drm_device *dev, void *data,
1302 struct drm_file *file_priv);
1303 extern int drm_order(unsigned long size);
1304
1305 /* DMA support (drm_dma.h) */
1306 extern int drm_dma_setup(struct drm_device *dev);
1307 extern void drm_dma_takedown(struct drm_device *dev);
1308 extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
1309 extern void drm_core_reclaim_buffers(struct drm_device *dev,
1310 struct drm_file *filp);
1311
1312 /* IRQ support (drm_irq.h) */
1313 extern int drm_control(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315 extern int drm_irq_install(struct drm_device *dev);
1316 extern int drm_irq_uninstall(struct drm_device *dev);
1317
1318 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1319 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1320 struct drm_file *filp);
1321 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1322 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1323 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1324 struct timeval *vblanktime);
1325 extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
1326 struct drm_pending_vblank_event *e);
1327 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1328 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1329 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1330 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1331 extern void drm_vblank_cleanup(struct drm_device *dev);
1332 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1333 struct timeval *tvblank, unsigned flags);
1334 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1335 int crtc, int *max_error,
1336 struct timeval *vblank_time,
1337 unsigned flags,
1338 struct drm_crtc *refcrtc);
1339 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1340
1341 extern bool
1342 drm_mode_parse_command_line_for_connector(const char *mode_option,
1343 struct drm_connector *connector,
1344 struct drm_cmdline_mode *mode);
1345
1346 extern struct drm_display_mode *
1347 drm_mode_create_from_cmdline_mode(struct drm_device *dev,
1348 struct drm_cmdline_mode *cmd);
1349
1350 /* Modesetting support */
1351 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1352 extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1353 extern int drm_modeset_ctl(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv);
1355
1356
1357 /* Stub support (drm_stub.h) */
1358 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
1359 struct drm_file *file_priv);
1360 extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv);
1362 struct drm_master *drm_master_create(struct drm_minor *minor);
1363 extern struct drm_master *drm_master_get(struct drm_master *master);
1364 extern void drm_master_put(struct drm_master **master);
1365
1366 extern void drm_put_dev(struct drm_device *dev);
1367 extern int drm_put_minor(struct drm_minor **minor);
1368 extern void drm_unplug_dev(struct drm_device *dev);
1369 extern unsigned int drm_debug;
1370 extern unsigned int drm_notyet;
1371
1372 extern unsigned int drm_vblank_offdelay;
1373 extern unsigned int drm_timestamp_precision;
1374 extern unsigned int drm_timestamp_monotonic;
1375
1376 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
1377
1378
1379 #ifdef FREEBSD_NOTYET
1380 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1381 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1382 int *prime_fd);
1383 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1384 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1385
1386 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1387 struct drm_file *file_priv);
1388 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1389 struct drm_file *file_priv);
1390
1391 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1392 dma_addr_t *addrs, int max_pages);
1393 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1394 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1395
1396
1397 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1398 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1399 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1400 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1401 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1402
1403 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1404 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1405 struct drm_gem_object **obj);
1406 #endif /* FREEBSD_NOTYET */
1407
1408 /* Scatter Gather Support (drm_scatter.h) */
1409 extern void drm_sg_cleanup(struct drm_sg_mem * entry);
1410 extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1411 struct drm_file *file_priv);
1412 extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1413 extern int drm_sg_free(struct drm_device *dev, void *data,
1414 struct drm_file *file_priv);
1415
1416 /* ATI PCIGART support (ati_pcigart.h) */
1417 extern int drm_ati_pcigart_init(struct drm_device *dev,
1418 struct drm_ati_pcigart_info * gart_info);
1419 extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
1420 struct drm_ati_pcigart_info * gart_info);
1421
1422 extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1423 size_t align, dma_addr_t maxaddr);
1424 extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1425 extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
1426
1427 /* Graphics Execution Manager library functions (drm_gem.c) */
1428 int drm_gem_init(struct drm_device *dev);
1429 void drm_gem_destroy(struct drm_device *dev);
1430 void drm_gem_object_release(struct drm_gem_object *obj);
1431 void drm_gem_object_free(struct drm_gem_object *obj);
1432 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1433 size_t size);
1434 int drm_gem_object_init(struct drm_device *dev,
1435 struct drm_gem_object *obj, size_t size);
1436 int drm_gem_private_object_init(struct drm_device *dev,
1437 struct drm_gem_object *obj, size_t size);
1438 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1439 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1440 vm_size_t size, struct vm_object **obj_res, int nprot);
1441 void drm_gem_pager_dtr(void *obj);
1442
1443 #include <dev/drm2/drm_global.h>
1444
1445 static inline void
1446 drm_gem_object_reference(struct drm_gem_object *obj)
1447 {
1448
1449 KASSERT(obj->refcount > 0, ("Dangling obj %p", obj));
1450 refcount_acquire(&obj->refcount);
1451 }
1452
1453 static inline void
1454 drm_gem_object_unreference(struct drm_gem_object *obj)
1455 {
1456
1457 if (obj == NULL)
1458 return;
1459 if (refcount_release(&obj->refcount))
1460 drm_gem_object_free(obj);
1461 }
1462
1463 static inline void
1464 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
1465 {
1466 if (obj != NULL) {
1467 struct drm_device *dev = obj->dev;
1468 DRM_LOCK(dev);
1469 drm_gem_object_unreference(obj);
1470 DRM_UNLOCK(dev);
1471 }
1472 }
1473
1474 int drm_gem_handle_create(struct drm_file *file_priv,
1475 struct drm_gem_object *obj,
1476 u32 *handlep);
1477 int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
1478
1479 static inline void
1480 drm_gem_object_handle_reference(struct drm_gem_object *obj)
1481 {
1482 drm_gem_object_reference(obj);
1483 atomic_inc(&obj->handle_count);
1484 }
1485
1486 static inline void
1487 drm_gem_object_handle_unreference(struct drm_gem_object *obj)
1488 {
1489 if (obj == NULL)
1490 return;
1491
1492 if (atomic_read(&obj->handle_count) == 0)
1493 return;
1494 /*
1495 * Must bump handle count first as this may be the last
1496 * ref, in which case the object would disappear before we
1497 * checked for a name
1498 */
1499 if (atomic_dec_and_test(&obj->handle_count))
1500 drm_gem_object_handle_free(obj);
1501 drm_gem_object_unreference(obj);
1502 }
1503
1504 static inline void
1505 drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
1506 {
1507 if (obj == NULL)
1508 return;
1509
1510 if (atomic_read(&obj->handle_count) == 0)
1511 return;
1512
1513 /*
1514 * Must bump handle count first as this may be the last
1515 * ref, in which case the object would disappear before we
1516 * checked for a name
1517 */
1518
1519 if (atomic_dec_and_test(&obj->handle_count))
1520 drm_gem_object_handle_free(obj);
1521 drm_gem_object_unreference_unlocked(obj);
1522 }
1523
1524 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1525 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1526
1527 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1528 struct drm_file *filp,
1529 u32 handle);
1530 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1531 struct drm_file *file_priv);
1532 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1533 struct drm_file *file_priv);
1534 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1535 struct drm_file *file_priv);
1536 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
1537 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
1538
1539 extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
1540 extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
1541 extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
1542
1543 static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
1544 unsigned int token)
1545 {
1546 struct drm_map_list *_entry;
1547 list_for_each_entry(_entry, &dev->maplist, head)
1548 if (_entry->user_token == token)
1549 return _entry->map;
1550 return NULL;
1551 }
1552
1553 static __inline__ void drm_core_dropmap(struct drm_local_map *map)
1554 {
1555 }
1556
1557 #include <dev/drm2/drm_mem_util.h>
1558
1559 extern int drm_fill_in_dev(struct drm_device *dev,
1560 struct drm_driver *driver);
1561 extern void drm_cancel_fill_in_dev(struct drm_device *dev);
1562 int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
1563 /*@}*/
1564
1565 /* PCI section */
1566 int drm_pci_device_is_agp(struct drm_device *dev);
1567 int drm_pci_device_is_pcie(struct drm_device *dev);
1568
1569 extern int drm_get_pci_dev(device_t kdev, struct drm_device *dev,
1570 struct drm_driver *driver);
1571
1572 #define DRM_PCIE_SPEED_25 1
1573 #define DRM_PCIE_SPEED_50 2
1574 #define DRM_PCIE_SPEED_80 4
1575
1576 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1577
1578 #define drm_can_sleep() (DRM_HZ & 1)
1579
1580 /* Platform section */
1581 int drm_get_platform_dev(device_t kdev, struct drm_device *dev,
1582 struct drm_driver *driver);
1583
1584 /* FreeBSD specific -- should be moved to drm_os_freebsd.h */
1585
1586 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
1587 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
1588 #define DRM_GEM_MAX_IDX 0x3fffff
1589 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
1590 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
1591 #define DRM_GEM_MAPPING_MAPOFF(o) \
1592 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
1593
1594 SYSCTL_DECL(_hw_drm);
1595
1596 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
1597 #define DRM_DEV_UID UID_ROOT
1598 #define DRM_DEV_GID GID_VIDEO
1599
1600 #define DRM_WAKEUP(w) wakeup((void *)w)
1601 #define DRM_WAKEUP_INT(w) wakeup(w)
1602 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
1603
1604 #define DRM_CURPROC curthread
1605 #define DRM_STRUCTPROC struct thread
1606 #define DRM_SPINTYPE struct mtx
1607 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF)
1608 #define DRM_SPINUNINIT(l) mtx_destroy(l)
1609 #define DRM_SPINLOCK(l) mtx_lock(l)
1610 #define DRM_SPINUNLOCK(u) mtx_unlock(u)
1611 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
1612 mtx_lock(l); \
1613 (void)irqflags; \
1614 } while (0)
1615 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u)
1616 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED)
1617 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
1618 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
1619 #if defined(INVARIANTS)
1620 #define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED)
1621 #define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED)
1622 #else
1623 #define DRM_LOCK_ASSERT(d)
1624 #define DRM_UNLOCK_ASSERT(d)
1625 #endif
1626
1627 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
1628
1629 enum {
1630 DRM_IS_NOT_AGP,
1631 DRM_IS_AGP,
1632 DRM_MIGHT_BE_AGP
1633 };
1634
1635 #define DRM_VERIFYAREA_READ( uaddr, size ) \
1636 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
1637
1638 #define DRM_COPY_TO_USER(user, kern, size) \
1639 copyout(kern, user, size)
1640 #define DRM_COPY_FROM_USER(kern, user, size) \
1641 copyin(user, kern, size)
1642 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
1643 copyin(arg2, arg1, arg3)
1644 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
1645 copyout(arg2, arg1, arg3)
1646 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
1647 ((val) = fuword32(uaddr), 0)
1648
1649 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
1650 (_map) = (_dev)->context_sareas[_ctx]; \
1651 } while(0)
1652
1653 /* Returns -errno to shared code */
1654 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
1655 for ( ret = 0 ; !ret && !(condition) ; ) { \
1656 DRM_UNLOCK(dev); \
1657 mtx_lock(&dev->irq_lock); \
1658 if (!(condition)) \
1659 ret = -mtx_sleep(&(queue), &dev->irq_lock, \
1660 PCATCH, "drmwtq", (timeout)); \
1661 if (ret == -ERESTART) \
1662 ret = -ERESTARTSYS; \
1663 mtx_unlock(&dev->irq_lock); \
1664 DRM_LOCK(dev); \
1665 }
1666
1667 #define dev_err(dev, fmt, ...) \
1668 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
1669 #define dev_warn(dev, fmt, ...) \
1670 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
1671 #define dev_info(dev, fmt, ...) \
1672 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
1673 #define dev_dbg(dev, fmt, ...) do { \
1674 if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \
1675 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
1676 } \
1677 } while (0)
1678
1679 struct drm_msi_blacklist_entry
1680 {
1681 int vendor;
1682 int device;
1683 };
1684
1685 struct drm_vblank_info {
1686 wait_queue_head_t queue; /* vblank wait queue */
1687 atomic_t count; /* number of VBLANK interrupts */
1688 /* (driver must alloc the right number of counters) */
1689 atomic_t refcount; /* number of users of vblank interrupts */
1690 u32 last; /* protected by dev->vbl_lock, used */
1691 /* for wraparound handling */
1692 int enabled; /* so we don't call enable more than */
1693 /* once per disable */
1694 int inmodeset; /* Display driver is setting mode */
1695 };
1696
1697 #ifndef DMA_BIT_MASK
1698 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
1699 #endif
1700
1701 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
1702
1703 enum dmi_field {
1704 DMI_NONE,
1705 DMI_BIOS_VENDOR,
1706 DMI_BIOS_VERSION,
1707 DMI_BIOS_DATE,
1708 DMI_SYS_VENDOR,
1709 DMI_PRODUCT_NAME,
1710 DMI_PRODUCT_VERSION,
1711 DMI_PRODUCT_SERIAL,
1712 DMI_PRODUCT_UUID,
1713 DMI_BOARD_VENDOR,
1714 DMI_BOARD_NAME,
1715 DMI_BOARD_VERSION,
1716 DMI_BOARD_SERIAL,
1717 DMI_BOARD_ASSET_TAG,
1718 DMI_CHASSIS_VENDOR,
1719 DMI_CHASSIS_TYPE,
1720 DMI_CHASSIS_VERSION,
1721 DMI_CHASSIS_SERIAL,
1722 DMI_CHASSIS_ASSET_TAG,
1723 DMI_STRING_MAX,
1724 };
1725
1726 struct dmi_strmatch {
1727 unsigned char slot;
1728 char substr[79];
1729 };
1730
1731 struct dmi_system_id {
1732 int (*callback)(const struct dmi_system_id *);
1733 const char *ident;
1734 struct dmi_strmatch matches[4];
1735 };
1736 #define DMI_MATCH(a, b) {(a), (b)}
1737 bool dmi_check_system(const struct dmi_system_id *);
1738
1739 /* Device setup support (drm_drv.c) */
1740 int drm_probe_helper(device_t kdev, const drm_pci_id_list_t *idlist);
1741 int drm_attach_helper(device_t kdev, const drm_pci_id_list_t *idlist,
1742 struct drm_driver *driver);
1743 int drm_generic_suspend(device_t kdev);
1744 int drm_generic_resume(device_t kdev);
1745 int drm_generic_detach(device_t kdev);
1746
1747 void drm_event_wakeup(struct drm_pending_event *e);
1748
1749 int drm_add_busid_modesetting(struct drm_device *dev,
1750 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1751
1752 /* Buffer management support (drm_bufs.c) */
1753 unsigned long drm_get_resource_start(struct drm_device *dev,
1754 unsigned int resource);
1755 unsigned long drm_get_resource_len(struct drm_device *dev,
1756 unsigned int resource);
1757
1758 /* IRQ support (drm_irq.c) */
1759 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1760 void drm_driver_irq_preinstall(struct drm_device *dev);
1761 void drm_driver_irq_postinstall(struct drm_device *dev);
1762 void drm_driver_irq_uninstall(struct drm_device *dev);
1763
1764 /* sysctl support (drm_sysctl.h) */
1765 extern int drm_sysctl_init(struct drm_device *dev);
1766 extern int drm_sysctl_cleanup(struct drm_device *dev);
1767
1768 int drm_version(struct drm_device *dev, void *data,
1769 struct drm_file *file_priv);
1770
1771 /* consistent PCI memory functions (drm_pci.c) */
1772 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
1773 int drm_pci_set_unique(struct drm_device *dev, struct drm_master *master,
1774 struct drm_unique *u);
1775 int drm_pci_agp_init(struct drm_device *dev);
1776 int drm_pci_enable_msi(struct drm_device *dev);
1777 void drm_pci_disable_msi(struct drm_device *dev);
1778
1779 struct ttm_bo_device;
1780 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1781 vm_size_t size, struct vm_object **obj_res, int nprot);
1782 struct ttm_buffer_object;
1783 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1784
1785 #if __OS_HAS_AGP
1786 /* Memory management support (drm_memory.h) */
1787 extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
1788 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
1789 #ifdef FREEBSD_NOTYET
1790 extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
1791 struct page **pages,
1792 unsigned long num_pages,
1793 uint32_t gtt_offset,
1794 uint32_t type);
1795 #endif /* FREEBSD_NOTYET */
1796 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
1797
1798 /* AGP/GART support (drm_agpsupport.h) */
1799 extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
1800 extern int drm_agp_acquire(struct drm_device *dev);
1801 extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1802 struct drm_file *file_priv);
1803 extern int drm_agp_release(struct drm_device *dev);
1804 extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1805 struct drm_file *file_priv);
1806 extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1807 extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1808 struct drm_file *file_priv);
1809 extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
1810 extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1811 struct drm_file *file_priv);
1812 extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1813 extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1814 struct drm_file *file_priv);
1815 extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1816 extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1817 struct drm_file *file_priv);
1818 extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1819 extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1820 struct drm_file *file_priv);
1821 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1822 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1823 struct drm_file *file_priv);
1824
1825 #else
1826
1827 static inline void drm_free_agp(DRM_AGP_MEM * handle, int pages)
1828 {
1829 }
1830
1831 static inline int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
1832 {
1833 return -ENODEV;
1834 }
1835
1836 static inline int drm_unbind_agp(DRM_AGP_MEM * handle)
1837 {
1838 return -ENODEV;
1839 }
1840 #ifdef FREEBSD_NOTYET
1841 static inline struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
1842 struct page **pages,
1843 unsigned long num_pages,
1844 uint32_t gtt_offset,
1845 uint32_t type)
1846 {
1847 return NULL;
1848 }
1849 #endif
1850 static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
1851 {
1852 return NULL;
1853 }
1854
1855 static inline void drm_agp_clear(struct drm_device *dev)
1856 {
1857 }
1858
1859 static inline int drm_agp_acquire(struct drm_device *dev)
1860 {
1861 return -ENODEV;
1862 }
1863
1864 static inline int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1865 struct drm_file *file_priv)
1866 {
1867 return -ENODEV;
1868 }
1869
1870 static inline int drm_agp_release(struct drm_device *dev)
1871 {
1872 return -ENODEV;
1873 }
1874
1875 static inline int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1876 struct drm_file *file_priv)
1877 {
1878 return -ENODEV;
1879 }
1880
1881 static inline int drm_agp_enable(struct drm_device *dev,
1882 struct drm_agp_mode mode)
1883 {
1884 return -ENODEV;
1885 }
1886
1887 static inline int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1888 struct drm_file *file_priv)
1889 {
1890 return -ENODEV;
1891 }
1892
1893 static inline int drm_agp_info(struct drm_device *dev,
1894 struct drm_agp_info *info)
1895 {
1896 return -ENODEV;
1897 }
1898
1899 static inline int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1900 struct drm_file *file_priv)
1901 {
1902 return -ENODEV;
1903 }
1904
1905 static inline int drm_agp_alloc(struct drm_device *dev,
1906 struct drm_agp_buffer *request)
1907 {
1908 return -ENODEV;
1909 }
1910
1911 static inline int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1912 struct drm_file *file_priv)
1913 {
1914 return -ENODEV;
1915 }
1916
1917 static inline int drm_agp_free(struct drm_device *dev,
1918 struct drm_agp_buffer *request)
1919 {
1920 return -ENODEV;
1921 }
1922
1923 static inline int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1924 struct drm_file *file_priv)
1925 {
1926 return -ENODEV;
1927 }
1928
1929 static inline int drm_agp_unbind(struct drm_device *dev,
1930 struct drm_agp_binding *request)
1931 {
1932 return -ENODEV;
1933 }
1934
1935 static inline int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1936 struct drm_file *file_priv)
1937 {
1938 return -ENODEV;
1939 }
1940
1941 static inline int drm_agp_bind(struct drm_device *dev,
1942 struct drm_agp_binding *request)
1943 {
1944 return -ENODEV;
1945 }
1946
1947 static inline int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1948 struct drm_file *file_priv)
1949 {
1950 return -ENODEV;
1951 }
1952
1953 #endif /* __OS_HAS_AGP */
1954
1955 #endif /* __KERNEL__ */
1956 #endif
Cache object: 20a686a2873304f4d7b79f8eef8f6fed
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