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