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: stable/9/sys/dev/drm2/drmP.h 263817 2014-03-27 15:58:18Z ray $");
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/lock.h>
56 #include <sys/fcntl.h>
57 #include <sys/uio.h>
58 #include <sys/filio.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 <vm/vm.h>
69 #include <vm/pmap.h>
70 #include <vm/vm_extern.h>
71 #include <vm/vm_kern.h>
72 #include <vm/vm_map.h>
73 #include <vm/vm_object.h>
74 #include <vm/vm_page.h>
75 #include <vm/vm_pager.h>
76 #include <vm/vm_param.h>
77 #include <vm/vm_phys.h>
78 #include <machine/param.h>
79 #include <machine/pmap.h>
80 #include <machine/bus.h>
81 #include <machine/resource.h>
82 #if defined(__i386__) || defined(__amd64__)
83 #include <machine/specialreg.h>
84 #endif
85 #include <machine/sysarch.h>
86 #include <sys/endian.h>
87 #include <sys/mman.h>
88 #include <sys/rman.h>
89 #include <sys/memrange.h>
90 #include <dev/agp/agpvar.h>
91 #include <sys/agpio.h>
92 #include <sys/mutex.h>
93 #include <dev/pci/pcivar.h>
94 #include <dev/pci/pcireg.h>
95 #include <sys/selinfo.h>
96 #include <sys/bus.h>
97
98 #include <dev/drm2/drm.h>
99 #include <dev/drm2/drm_sarea.h>
100
101 #include <dev/drm2/drm_atomic.h>
102 #include <dev/drm2/drm_internal.h>
103 #include <dev/drm2/drm_linux_list.h>
104 #include <dev/drm2/drm_gem_names.h>
105
106 struct drm_file;
107 struct drm_device;
108
109 #include <dev/drm2/drm_os_freebsd.h>
110 #include <dev/drm2/drm_hashtab.h>
111 #include <dev/drm2/drm_mm.h>
112
113 #include "opt_compat.h"
114 #include "opt_drm.h"
115 #include "opt_syscons.h"
116 #ifdef DRM_DEBUG
117 #undef DRM_DEBUG
118 #define DRM_DEBUG_DEFAULT_ON 1
119 #endif /* DRM_DEBUG */
120
121 #define DRM_DEBUGBITS_DEBUG 0x1
122 #define DRM_DEBUGBITS_KMS 0x2
123 #define DRM_DEBUGBITS_FAILED_IOCTL 0x4
124
125 #undef DRM_LINUX
126 #define DRM_LINUX 0
127
128 /***********************************************************************/
129 /** \name DRM template customization defaults */
130 /*@{*/
131
132 /* driver capabilities and requirements mask */
133 #define DRIVER_USE_AGP 0x1
134 #define DRIVER_REQUIRE_AGP 0x2
135 #define DRIVER_USE_MTRR 0x4
136 #define DRIVER_PCI_DMA 0x8
137 #define DRIVER_SG 0x10
138 #define DRIVER_HAVE_DMA 0x20
139 #define DRIVER_HAVE_IRQ 0x40
140 #define DRIVER_IRQ_SHARED 0x80
141 #define DRIVER_IRQ_VBL 0x100
142 #define DRIVER_DMA_QUEUE 0x200
143 #define DRIVER_FB_DMA 0x400
144 #define DRIVER_IRQ_VBL2 0x800
145 #define DRIVER_GEM 0x1000
146 #define DRIVER_MODESET 0x2000
147 #define DRIVER_PRIME 0x4000
148 #define DRIVER_LOCKLESS_IRQ 0x8000
149
150
151 #define DRM_HASH_SIZE 16 /* Size of key hash table */
152 #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
153 #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
154
155 #define DRM_GEM_MAPPING_MASK (3ULL << 62)
156 #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */
157 #define DRM_GEM_MAX_IDX 0x3fffff
158 #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX)
159 #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40)
160 #define DRM_GEM_MAPPING_MAPOFF(o) \
161 ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY))
162
163 MALLOC_DECLARE(DRM_MEM_DMA);
164 MALLOC_DECLARE(DRM_MEM_SAREA);
165 MALLOC_DECLARE(DRM_MEM_DRIVER);
166 MALLOC_DECLARE(DRM_MEM_MAGIC);
167 MALLOC_DECLARE(DRM_MEM_IOCTLS);
168 MALLOC_DECLARE(DRM_MEM_MAPS);
169 MALLOC_DECLARE(DRM_MEM_BUFS);
170 MALLOC_DECLARE(DRM_MEM_SEGS);
171 MALLOC_DECLARE(DRM_MEM_PAGES);
172 MALLOC_DECLARE(DRM_MEM_FILES);
173 MALLOC_DECLARE(DRM_MEM_QUEUES);
174 MALLOC_DECLARE(DRM_MEM_CMDS);
175 MALLOC_DECLARE(DRM_MEM_MAPPINGS);
176 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
177 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
178 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
179 MALLOC_DECLARE(DRM_MEM_SGLISTS);
180 MALLOC_DECLARE(DRM_MEM_DRAWABLE);
181 MALLOC_DECLARE(DRM_MEM_MM);
182 MALLOC_DECLARE(DRM_MEM_HASHTAB);
183 MALLOC_DECLARE(DRM_MEM_KMS);
184
185 SYSCTL_DECL(_hw_drm);
186
187 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
188
189 /***********************************************************************/
190 /** \name Internal types and structures */
191 /*@{*/
192
193 #define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
194 #define DRM_MIN(a,b) ((a)<(b)?(a):(b))
195 #define DRM_MAX(a,b) ((a)>(b)?(a):(b))
196
197 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
198
199 #define __OS_HAS_AGP 1
200
201 #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
202 #define DRM_DEV_UID 0
203 #define DRM_DEV_GID 0
204
205 #define wait_queue_head_t atomic_t
206 #define DRM_WAKEUP(w) wakeup((void *)w)
207 #define DRM_WAKEUP_INT(w) wakeup(w)
208 #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0)
209
210 #define DRM_CURPROC curthread
211 #define DRM_STRUCTPROC struct thread
212 #define DRM_SPINTYPE struct mtx
213 #define DRM_SPININIT(l,name) mtx_init(l, name, NULL, MTX_DEF)
214 #define DRM_SPINUNINIT(l) mtx_destroy(l)
215 #define DRM_SPINLOCK(l) mtx_lock(l)
216 #define DRM_SPINUNLOCK(u) mtx_unlock(u)
217 #define DRM_SPINLOCK_IRQSAVE(l, irqflags) do { \
218 mtx_lock(l); \
219 (void)irqflags; \
220 } while (0)
221 #define DRM_SPINUNLOCK_IRQRESTORE(u, irqflags) mtx_unlock(u)
222 #define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED)
223 #define DRM_CURRENTPID curthread->td_proc->p_pid
224 #define DRM_LOCK(dev) sx_xlock(&(dev)->dev_struct_lock)
225 #define DRM_UNLOCK(dev) sx_xunlock(&(dev)->dev_struct_lock)
226 #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \
227 (sx_sleep((chan), &(dev)->dev_struct_lock, (flags), (msg), (timeout)))
228 #if defined(INVARIANTS)
229 #define DRM_LOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_XLOCKED)
230 #define DRM_UNLOCK_ASSERT(dev) sx_assert(&(dev)->dev_struct_lock, SA_UNLOCKED)
231 #else
232 #define DRM_LOCK_ASSERT(d)
233 #define DRM_UNLOCK_ASSERT(d)
234 #endif
235
236 #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS)
237
238 #define DRM_IRQ_ARGS void *arg
239 typedef void irqreturn_t;
240 #define IRQ_HANDLED /* nothing */
241 #define IRQ_NONE /* nothing */
242
243 enum {
244 DRM_IS_NOT_AGP,
245 DRM_IS_AGP,
246 DRM_MIGHT_BE_AGP
247 };
248 #define DRM_AGP_MEM struct agp_memory_info
249
250 #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1)
251
252 #define PAGE_ALIGN(addr) round_page(addr)
253 /* DRM_SUSER returns true if the user is superuser */
254 #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
255 #define DRM_AGP_FIND_DEVICE() agp_find_device()
256 #define DRM_MTRR_WC MDF_WRITECOMBINE
257 #define jiffies ticks
258 #define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz)
259 #define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000)
260 #define time_after(a,b) ((long)(b) - (long)(a) < 0)
261 #define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0)
262 #define drm_msleep(x, msg) pause((msg), ((int64_t)(x)) * hz / 1000)
263
264 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
265 * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
266 * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
267 */
268 #define DRM_READMEMORYBARRIER() rmb()
269 #define DRM_WRITEMEMORYBARRIER() wmb()
270 #define DRM_MEMORYBARRIER() mb()
271
272 #define DRM_READ8(map, offset) \
273 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
274 (vm_offset_t)(offset))
275 #define DRM_READ16(map, offset) \
276 le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
277 (vm_offset_t)(offset)))
278 #define DRM_READ32(map, offset) \
279 le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
280 (vm_offset_t)(offset)))
281 #define DRM_READ64(map, offset) \
282 le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
283 (vm_offset_t)(offset)))
284 #define DRM_WRITE8(map, offset, val) \
285 *(volatile u_int8_t *)(((vm_offset_t)(map)->virtual) + \
286 (vm_offset_t)(offset)) = val
287 #define DRM_WRITE16(map, offset, val) \
288 *(volatile u_int16_t *)(((vm_offset_t)(map)->virtual) + \
289 (vm_offset_t)(offset)) = htole16(val)
290 #define DRM_WRITE32(map, offset, val) \
291 *(volatile u_int32_t *)(((vm_offset_t)(map)->virtual) + \
292 (vm_offset_t)(offset)) = htole32(val)
293 #define DRM_WRITE64(map, offset, val) \
294 *(volatile u_int64_t *)(((vm_offset_t)(map)->virtual) + \
295 (vm_offset_t)(offset)) = htole64(val)
296
297 #define DRM_VERIFYAREA_READ( uaddr, size ) \
298 (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ))
299
300 #define DRM_COPY_TO_USER(user, kern, size) \
301 copyout(kern, user, size)
302 #define DRM_COPY_FROM_USER(kern, user, size) \
303 copyin(user, kern, size)
304 #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
305 copyin(arg2, arg1, arg3)
306 #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \
307 copyout(arg2, arg1, arg3)
308 #define DRM_GET_USER_UNCHECKED(val, uaddr) \
309 ((val) = fuword32(uaddr), 0)
310
311 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
312 (_map) = (_dev)->context_sareas[_ctx]; \
313 } while(0)
314
315 #define LOCK_TEST_WITH_RETURN(dev, file_priv) \
316 do { \
317 if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
318 dev->lock.file_priv != file_priv) { \
319 DRM_ERROR("%s called without lock held\n", \
320 __FUNCTION__); \
321 return EINVAL; \
322 } \
323 } while (0)
324
325 /* Returns -errno to shared code */
326 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \
327 for ( ret = 0 ; !ret && !(condition) ; ) { \
328 DRM_UNLOCK(dev); \
329 mtx_lock(&dev->irq_lock); \
330 if (!(condition)) \
331 ret = -mtx_sleep(&(queue), &dev->irq_lock, \
332 PCATCH, "drmwtq", (timeout)); \
333 mtx_unlock(&dev->irq_lock); \
334 DRM_LOCK(dev); \
335 }
336
337 #define DRM_ERROR(fmt, ...) \
338 printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \
339 DRM_CURRENTPID, __func__ , ##__VA_ARGS__)
340
341 #define DRM_INFO(fmt, ...) printf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__)
342
343 #define DRM_DEBUG(fmt, ...) do { \
344 if ((drm_debug_flag & DRM_DEBUGBITS_DEBUG) != 0) \
345 printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \
346 __func__ , ##__VA_ARGS__); \
347 } while (0)
348
349 #define DRM_DEBUG_KMS(fmt, ...) do { \
350 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \
351 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
352 __func__ , ##__VA_ARGS__); \
353 } while (0)
354
355 #define DRM_DEBUG_DRIVER(fmt, ...) do { \
356 if ((drm_debug_flag & DRM_DEBUGBITS_KMS) != 0) \
357 printf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\
358 __func__ , ##__VA_ARGS__); \
359 } while (0)
360
361 #define dev_err(dev, fmt, ...) \
362 device_printf((dev), "error: " fmt, ## __VA_ARGS__)
363 #define dev_warn(dev, fmt, ...) \
364 device_printf((dev), "warning: " fmt, ## __VA_ARGS__)
365 #define dev_info(dev, fmt, ...) \
366 device_printf((dev), "info: " fmt, ## __VA_ARGS__)
367 #define dev_dbg(dev, fmt, ...) do { \
368 if ((drm_debug_flag& DRM_DEBUGBITS_KMS) != 0) { \
369 device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \
370 } \
371 } while (0)
372
373 typedef struct drm_pci_id_list
374 {
375 int vendor;
376 int device;
377 long driver_private;
378 char *name;
379 } drm_pci_id_list_t;
380
381 struct drm_msi_blacklist_entry
382 {
383 int vendor;
384 int device;
385 };
386
387 #define DRM_AUTH 0x1
388 #define DRM_MASTER 0x2
389 #define DRM_ROOT_ONLY 0x4
390 #define DRM_CONTROL_ALLOW 0x8
391 #define DRM_UNLOCKED 0x10
392
393 typedef struct drm_ioctl_desc {
394 unsigned long cmd;
395 int (*func)(struct drm_device *dev, void *data,
396 struct drm_file *file_priv);
397 int flags;
398 unsigned int cmd_drv;
399 } drm_ioctl_desc_t;
400
401 /**
402 * Creates a driver or general drm_ioctl_desc array entry for the given
403 * ioctl, for use by drm_ioctl().
404 */
405 #define DRM_IOCTL_DEF(ioctl, func, flags) \
406 [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
407
408 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
409 [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
410
411 typedef struct drm_magic_entry {
412 drm_magic_t magic;
413 struct drm_file *priv;
414 struct drm_magic_entry *next;
415 } drm_magic_entry_t;
416
417 typedef struct drm_magic_head {
418 struct drm_magic_entry *head;
419 struct drm_magic_entry *tail;
420 } drm_magic_head_t;
421
422 typedef struct drm_buf {
423 int idx; /**< Index into master buflist */
424 int total; /**< Buffer size */
425 int order; /**< log-base-2(total) */
426 int used; /**< Amount of buffer in use (for DMA) */
427 unsigned long offset; /**< Byte offset (used internally) */
428 void *address; /**< Address of buffer */
429 unsigned long bus_address; /**< Bus address of buffer */
430 struct drm_buf *next; /**< Kernel-only: used for free list */
431 __volatile__ int waiting; /**< On kernel DMA queue */
432 __volatile__ int pending; /**< On hardware DMA queue */
433 struct drm_file *file_priv; /**< Private of holding file descr */
434 int context; /**< Kernel queue for this buffer */
435 int while_locked; /**< Dispatch this buffer while locked */
436 enum {
437 DRM_LIST_NONE = 0,
438 DRM_LIST_FREE = 1,
439 DRM_LIST_WAIT = 2,
440 DRM_LIST_PEND = 3,
441 DRM_LIST_PRIO = 4,
442 DRM_LIST_RECLAIM = 5
443 } list; /**< Which list we're on */
444
445 int dev_priv_size; /**< Size of buffer private storage */
446 void *dev_private; /**< Per-buffer private storage */
447 } drm_buf_t;
448
449 typedef struct drm_freelist {
450 int initialized; /* Freelist in use */
451 atomic_t count; /* Number of free buffers */
452 drm_buf_t *next; /* End pointer */
453
454 int low_mark; /* Low water mark */
455 int high_mark; /* High water mark */
456 } drm_freelist_t;
457
458 typedef struct drm_dma_handle {
459 void *vaddr;
460 bus_addr_t busaddr;
461 bus_dma_tag_t tag;
462 bus_dmamap_t map;
463 } drm_dma_handle_t;
464
465 typedef struct drm_buf_entry {
466 int buf_size;
467 int buf_count;
468 drm_buf_t *buflist;
469 int seg_count;
470 drm_dma_handle_t **seglist;
471 int page_order;
472
473 drm_freelist_t freelist;
474 } drm_buf_entry_t;
475
476 /* Event queued up for userspace to read */
477 struct drm_pending_event {
478 struct drm_event *event;
479 struct list_head link;
480 struct drm_file *file_priv;
481 pid_t pid; /* pid of requester, no guarantee it's valid by the time
482 we deliver the event, for tracing only */
483 void (*destroy)(struct drm_pending_event *event);
484 };
485
486 /* initial implementaton using a linked list - todo hashtab */
487 struct drm_prime_file_private {
488 struct list_head head;
489 #ifdef DUMBBELL_WIP
490 struct mutex lock;
491 #endif /* DUMBBELL_WIP */
492 };
493
494 typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
495 struct drm_file {
496 TAILQ_ENTRY(drm_file) link;
497 struct drm_device *dev;
498 int authenticated;
499 int master;
500 pid_t pid;
501 uid_t uid;
502 drm_magic_t magic;
503 unsigned long ioctl_count;
504
505 void *driver_priv;
506 struct drm_gem_names object_names;
507
508 int is_master;
509 struct drm_master *masterp;
510
511 struct list_head fbs;
512
513 struct list_head event_list;
514 int event_space;
515 struct selinfo event_poll;
516
517 struct drm_prime_file_private prime;
518 };
519
520 typedef struct drm_lock_data {
521 struct drm_hw_lock *hw_lock; /* Hardware lock */
522 struct drm_file *file_priv; /* Unique identifier of holding process (NULL is kernel)*/
523 int lock_queue; /* Queue of blocked processes */
524 unsigned long lock_time; /* Time of last lock in jiffies */
525 } drm_lock_data_t;
526
527 /* This structure, in the struct drm_device, is always initialized while the
528 * device
529 * is open. dev->dma_lock protects the incrementing of dev->buf_use, which
530 * when set marks that no further bufs may be allocated until device teardown
531 * occurs (when the last open of the device has closed). The high/low
532 * watermarks of bufs are only touched by the X Server, and thus not
533 * concurrently accessed, so no locking is needed.
534 */
535 typedef struct drm_device_dma {
536
537 struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
538 int buf_count; /**< total number of buffers */
539 struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
540 int seg_count;
541 int page_count; /**< number of pages */
542 unsigned long *pagelist; /**< page list */
543 unsigned long byte_count;
544 enum {
545 _DRM_DMA_USE_AGP = 0x01,
546 _DRM_DMA_USE_SG = 0x02,
547 _DRM_DMA_USE_FB = 0x04,
548 _DRM_DMA_USE_PCI_RO = 0x08
549 } flags;
550
551 } drm_device_dma_t;
552
553 typedef struct drm_agp_mem {
554 void *handle;
555 unsigned long bound; /* address */
556 int pages;
557 struct drm_agp_mem *prev;
558 struct drm_agp_mem *next;
559 } drm_agp_mem_t;
560
561 typedef struct drm_agp_head {
562 device_t agpdev;
563 struct agp_info info;
564 const char *chipset;
565 drm_agp_mem_t *memory;
566 unsigned long mode;
567 int enabled;
568 int acquired;
569 unsigned long base;
570 int mtrr;
571 int cant_use_aperture;
572 unsigned long page_mask;
573 } drm_agp_head_t;
574
575 typedef struct drm_sg_mem {
576 vm_offset_t vaddr;
577 vm_paddr_t *busaddr;
578 vm_pindex_t pages;
579 } drm_sg_mem_t;
580
581 #define DRM_MAP_HANDLE_BITS (sizeof(void *) == 4 ? 4 : 24)
582 #define DRM_MAP_HANDLE_SHIFT (sizeof(void *) * 8 - DRM_MAP_HANDLE_BITS)
583 typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t;
584
585 typedef struct drm_local_map {
586 unsigned long offset; /* Physical address (0 for SAREA) */
587 unsigned long size; /* Physical size (bytes) */
588 enum drm_map_type type; /* Type of memory mapped */
589 enum drm_map_flags flags; /* Flags */
590 void *handle; /* User-space: "Handle" to pass to mmap */
591 /* Kernel-space: kernel-virtual address */
592 int mtrr; /* Boolean: MTRR used */
593 /* Private data */
594 int rid; /* PCI resource ID for bus_space */
595 void *virtual; /* Kernel-space: kernel-virtual address */
596 struct resource *bsr;
597 bus_space_tag_t bst;
598 bus_space_handle_t bsh;
599 drm_dma_handle_t *dmah;
600 TAILQ_ENTRY(drm_local_map) link;
601 } drm_local_map_t;
602
603 struct drm_vblank_info {
604 wait_queue_head_t queue; /* vblank wait queue */
605 atomic_t count; /* number of VBLANK interrupts */
606 /* (driver must alloc the right number of counters) */
607 atomic_t refcount; /* number of users of vblank interrupts */
608 u32 last; /* protected by dev->vbl_lock, used */
609 /* for wraparound handling */
610 int enabled; /* so we don't call enable more than */
611 /* once per disable */
612 int inmodeset; /* Display driver is setting mode */
613 };
614
615 /* location of GART table */
616 #define DRM_ATI_GART_MAIN 1
617 #define DRM_ATI_GART_FB 2
618
619 #define DRM_ATI_GART_PCI 1
620 #define DRM_ATI_GART_PCIE 2
621 #define DRM_ATI_GART_IGP 3
622
623 struct drm_ati_pcigart_info {
624 int gart_table_location;
625 int gart_reg_if;
626 void *addr;
627 dma_addr_t bus_addr;
628 dma_addr_t table_mask;
629 dma_addr_t member_mask;
630 struct drm_dma_handle *table_handle;
631 drm_local_map_t mapping;
632 int table_size;
633 struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */
634 };
635
636 typedef vm_paddr_t resource_size_t;
637
638 /**
639 * GEM specific mm private for tracking GEM objects
640 */
641 struct drm_gem_mm {
642 struct drm_open_hash offset_hash; /**< User token hash table for maps */
643 struct unrhdr *idxunr;
644 };
645
646 struct drm_gem_object {
647 /** Reference count of this object */
648 u_int refcount;
649
650 /** Handle count of this object. Each handle also holds a reference */
651 u_int handle_count; /* number of handles on this object */
652
653 /** Related drm device */
654 struct drm_device *dev;
655
656 /** File representing the shmem storage: filp in Linux parlance */
657 vm_object_t vm_obj;
658
659 bool on_map;
660 struct drm_hash_item map_list;
661
662 /**
663 * Size of the object, in bytes. Immutable over the object's
664 * lifetime.
665 */
666 size_t size;
667
668 /**
669 * Global name for this object, starts at 1. 0 means unnamed.
670 * Access is covered by the object_name_lock in the related drm_device
671 */
672 int name;
673
674 /**
675 * Memory domains. These monitor which caches contain read/write data
676 * related to the object. When transitioning from one set of domains
677 * to another, the driver is called to ensure that caches are suitably
678 * flushed and invalidated
679 */
680 uint32_t read_domains;
681 uint32_t write_domain;
682
683 /**
684 * While validating an exec operation, the
685 * new read/write domain values are computed here.
686 * They will be transferred to the above values
687 * at the point that any cache flushing occurs
688 */
689 uint32_t pending_read_domains;
690 uint32_t pending_write_domain;
691
692 void *driver_private;
693
694 #ifdef DUMBBELL_WIP
695 /* dma buf exported from this GEM object */
696 struct dma_buf *export_dma_buf;
697
698 /* dma buf attachment backing this object */
699 struct dma_buf_attachment *import_attach;
700 #endif /* DUMBBELL_WIP */
701 };
702
703 #include "drm_crtc.h"
704
705 /* per-master structure */
706 struct drm_master {
707
708 u_int refcount; /* refcount for this master */
709
710 struct list_head head; /**< each minor contains a list of masters */
711 struct drm_minor *minor; /**< link back to minor we are a master for */
712
713 char *unique; /**< Unique identifier: e.g., busid */
714 int unique_len; /**< Length of unique field */
715 int unique_size; /**< amount allocated */
716
717 int blocked; /**< Blocked due to VC switch? */
718
719 /** \name Authentication */
720 /*@{ */
721 struct drm_open_hash magiclist;
722 struct list_head magicfree;
723 /*@} */
724
725 struct drm_lock_data lock; /**< Information on hardware lock */
726
727 void *driver_priv; /**< Private structure for driver to use */
728 };
729
730 /* Size of ringbuffer for vblank timestamps. Just double-buffer
731 * in initial implementation.
732 */
733 #define DRM_VBLANKTIME_RBSIZE 2
734
735 /* Flags and return codes for get_vblank_timestamp() driver function. */
736 #define DRM_CALLED_FROM_VBLIRQ 1
737 #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
738 #define DRM_VBLANKTIME_INVBL (1 << 1)
739
740 /* get_scanout_position() return flags */
741 #define DRM_SCANOUTPOS_VALID (1 << 0)
742 #define DRM_SCANOUTPOS_INVBL (1 << 1)
743 #define DRM_SCANOUTPOS_ACCURATE (1 << 2)
744
745 #ifndef DMA_BIT_MASK
746 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)
747 #endif
748
749 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
750
751 struct drm_driver_info {
752 int (*load)(struct drm_device *, unsigned long flags);
753 int (*use_msi)(struct drm_device *, unsigned long flags);
754 int (*firstopen)(struct drm_device *);
755 int (*open)(struct drm_device *, struct drm_file *);
756 void (*preclose)(struct drm_device *, struct drm_file *file_priv);
757 void (*postclose)(struct drm_device *, struct drm_file *);
758 void (*lastclose)(struct drm_device *);
759 int (*unload)(struct drm_device *);
760 void (*reclaim_buffers_locked)(struct drm_device *,
761 struct drm_file *file_priv);
762 int (*dma_ioctl)(struct drm_device *dev, void *data,
763 struct drm_file *file_priv);
764 void (*dma_ready)(struct drm_device *);
765 int (*dma_quiescent)(struct drm_device *);
766 int (*dma_flush_block_and_flush)(struct drm_device *, int context,
767 enum drm_lock_flags flags);
768 int (*dma_flush_unblock)(struct drm_device *, int context,
769 enum drm_lock_flags flags);
770 int (*context_ctor)(struct drm_device *dev, int context);
771 int (*context_dtor)(struct drm_device *dev, int context);
772 int (*kernel_context_switch)(struct drm_device *dev, int old,
773 int new);
774 int (*kernel_context_switch_unlock)(struct drm_device *dev);
775 void (*irq_preinstall)(struct drm_device *dev);
776 int (*irq_postinstall)(struct drm_device *dev);
777 void (*irq_uninstall)(struct drm_device *dev);
778 void (*irq_handler)(DRM_IRQ_ARGS);
779
780 u32 (*get_vblank_counter)(struct drm_device *dev, int crtc);
781 int (*enable_vblank)(struct drm_device *dev, int crtc);
782 void (*disable_vblank)(struct drm_device *dev, int crtc);
783 int (*get_scanout_position)(struct drm_device *dev, int crtc,
784 int *vpos, int *hpos);
785
786 int (*get_vblank_timestamp)(struct drm_device *dev, int crtc,
787 int *max_error, struct timeval *vblank_time,
788 unsigned flags);
789
790 int (*gem_init_object)(struct drm_gem_object *obj);
791 void (*gem_free_object)(struct drm_gem_object *obj);
792 int (*gem_open_object)(struct drm_gem_object *, struct drm_file *);
793 void (*gem_close_object)(struct drm_gem_object *, struct drm_file *);
794
795 struct cdev_pager_ops *gem_pager_ops;
796
797 int (*dumb_create)(struct drm_file *file_priv,
798 struct drm_device *dev, struct drm_mode_create_dumb *args);
799 int (*dumb_map_offset)(struct drm_file *file_priv,
800 struct drm_device *dev, uint32_t handle, uint64_t *offset);
801 int (*dumb_destroy)(struct drm_file *file_priv,
802 struct drm_device *dev, uint32_t handle);
803
804 int (*sysctl_init)(struct drm_device *dev,
805 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
806 void (*sysctl_cleanup)(struct drm_device *dev);
807
808 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
809
810 /**
811 * Called by \c drm_device_is_agp. Typically used to determine if a
812 * card is really attached to AGP or not.
813 *
814 * \param dev DRM device handle
815 *
816 * \returns
817 * One of three values is returned depending on whether or not the
818 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
819 * (return of 1), or may or may not be AGP (return of 2).
820 */
821 int (*device_is_agp) (struct drm_device * dev);
822
823 drm_ioctl_desc_t *ioctls;
824 #ifdef COMPAT_FREEBSD32
825 drm_ioctl_desc_t *compat_ioctls;
826 int *compat_ioctls_nr;
827 #endif
828 int max_ioctl;
829
830 int buf_priv_size;
831
832 int major;
833 int minor;
834 int patchlevel;
835 const char *name; /* Simple driver name */
836 const char *desc; /* Longer driver name */
837 const char *date; /* Date of last major changes. */
838
839 u32 driver_features;
840 };
841
842 /**
843 * DRM minor structure. This structure represents a drm minor number.
844 */
845 struct drm_minor {
846 int index; /**< Minor device number */
847 int type; /**< Control or render */
848 device_t kdev; /**< OS device */
849 struct drm_device *dev;
850
851 struct drm_master *master; /* currently active master for this node */
852 struct list_head master_list;
853 struct drm_mode_group mode_group;
854 };
855
856 /* mode specified on the command line */
857 struct drm_cmdline_mode {
858 bool specified;
859 bool refresh_specified;
860 bool bpp_specified;
861 int xres, yres;
862 int bpp;
863 int refresh;
864 bool rb;
865 bool interlace;
866 bool cvt;
867 bool margins;
868 enum drm_connector_force force;
869 };
870
871
872 struct drm_pending_vblank_event {
873 struct drm_pending_event base;
874 int pipe;
875 struct drm_event_vblank event;
876 };
877
878 /* Length for the array of resource pointers for drm_get_resource_*. */
879 #define DRM_MAX_PCI_RESOURCE 6
880
881 /**
882 * DRM device structure. This structure represent a complete card that
883 * may contain multiple heads.
884 */
885 struct drm_device {
886 struct drm_driver_info *driver;
887 drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */
888
889 uint16_t pci_device; /* PCI device id */
890 uint16_t pci_vendor; /* PCI vendor id */
891 uint16_t pci_subdevice; /* PCI subsystem device id */
892 uint16_t pci_subvendor; /* PCI subsystem vendor id */
893
894 char *unique; /* Unique identifier: e.g., busid */
895 int unique_len; /* Length of unique field */
896 device_t device; /* Device instance from newbus */
897 struct cdev *devnode; /* Device number for mknod */
898 int if_version; /* Highest interface version set */
899
900 int flags; /* Flags to open(2) */
901
902 /* Locks */
903 struct mtx dma_lock; /* protects dev->dma */
904 struct mtx irq_lock; /* protects irq condition checks */
905 struct mtx dev_lock; /* protects everything else */
906 struct sx dev_struct_lock;
907 DRM_SPINTYPE drw_lock;
908
909 /* Usage Counters */
910 int open_count; /* Outstanding files open */
911 int buf_use; /* Buffers in use -- cannot alloc */
912
913 /* Performance counters */
914 unsigned long counters;
915 enum drm_stat_type types[15];
916 atomic_t counts[15];
917
918 /* Authentication */
919 drm_file_list_t files;
920 drm_magic_head_t magiclist[DRM_HASH_SIZE];
921
922 /* Linked list of mappable regions. Protected by dev_lock */
923 drm_map_list_t maplist;
924 struct unrhdr *map_unrhdr;
925
926 drm_local_map_t **context_sareas;
927 int max_context;
928
929 drm_lock_data_t lock; /* Information on hardware lock */
930
931 /* DMA queues (contexts) */
932 drm_device_dma_t *dma; /* Optional pointer for DMA support */
933
934 /* Context support */
935 int irq; /* Interrupt used by board */
936 int irq_enabled; /* True if the irq handler is enabled */
937 int msi_enabled; /* MSI enabled */
938 int irqrid; /* Interrupt used by board */
939 struct resource *irqr; /* Resource for interrupt used by board */
940 void *irqh; /* Handle from bus_setup_intr */
941
942 /* Storage of resource pointers for drm_get_resource_* */
943 struct resource *pcir[DRM_MAX_PCI_RESOURCE];
944 int pcirid[DRM_MAX_PCI_RESOURCE];
945
946 int pci_domain;
947 int pci_bus;
948 int pci_slot;
949 int pci_func;
950
951 atomic_t context_flag; /* Context swapping flag */
952 int last_context; /* Last current context */
953
954 int num_crtcs;
955
956 struct sigio *buf_sigio; /* Processes waiting for SIGIO */
957
958 /* Sysctl support */
959 struct drm_sysctl_info *sysctl;
960 int sysctl_node_idx;
961
962 drm_agp_head_t *agp;
963 drm_sg_mem_t *sg; /* Scatter gather memory */
964 unsigned long *ctx_bitmap;
965 void *dev_private;
966 unsigned int agp_buffer_token;
967 drm_local_map_t *agp_buffer_map;
968
969 struct drm_minor *control; /**< Control node for card */
970 struct drm_minor *primary; /**< render type primary screen head */
971
972 void *drm_ttm_bdev;
973 struct unrhdr *drw_unrhdr;
974 /* RB tree of drawable infos */
975 RB_HEAD(drawable_tree, bsd_drm_drawable_info) drw_head;
976
977 int vblank_disable_allowed;
978
979 atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
980 struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
981 struct mtx vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
982 struct mtx vbl_lock;
983 atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
984 u32 *last_vblank; /* protected by dev->vbl_lock, used */
985 /* for wraparound handling */
986 int *vblank_enabled; /* so we don't call enable more than
987 once per disable */
988 int *vblank_inmodeset; /* Display driver is setting mode */
989 u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
990 struct callout vblank_disable_callout;
991
992 u32 max_vblank_count; /**< size of vblank counter register */
993
994 struct list_head vblank_event_list;
995 struct mtx event_lock;
996
997 struct drm_mode_config mode_config; /**< Current mode config */
998
999 /* GEM part */
1000 struct sx object_name_lock;
1001 struct drm_gem_names object_names;
1002 void *mm_private;
1003
1004 void *sysctl_private;
1005 char busid_str[128];
1006 int modesetting;
1007
1008 int switch_power_state;
1009 };
1010
1011 #define DRM_SWITCH_POWER_ON 0
1012 #define DRM_SWITCH_POWER_OFF 1
1013 #define DRM_SWITCH_POWER_CHANGING 2
1014
drm_core_check_feature(struct drm_device * dev,int feature)1015 static __inline__ int drm_core_check_feature(struct drm_device *dev,
1016 int feature)
1017 {
1018 return ((dev->driver->driver_features & feature) ? 1 : 0);
1019 }
1020
1021 #if __OS_HAS_AGP
drm_core_has_AGP(struct drm_device * dev)1022 static inline int drm_core_has_AGP(struct drm_device *dev)
1023 {
1024 return drm_core_check_feature(dev, DRIVER_USE_AGP);
1025 }
1026 #else
1027 #define drm_core_has_AGP(dev) (0)
1028 #endif
1029
1030 enum dmi_field {
1031 DMI_NONE,
1032 DMI_BIOS_VENDOR,
1033 DMI_BIOS_VERSION,
1034 DMI_BIOS_DATE,
1035 DMI_SYS_VENDOR,
1036 DMI_PRODUCT_NAME,
1037 DMI_PRODUCT_VERSION,
1038 DMI_PRODUCT_SERIAL,
1039 DMI_PRODUCT_UUID,
1040 DMI_BOARD_VENDOR,
1041 DMI_BOARD_NAME,
1042 DMI_BOARD_VERSION,
1043 DMI_BOARD_SERIAL,
1044 DMI_BOARD_ASSET_TAG,
1045 DMI_CHASSIS_VENDOR,
1046 DMI_CHASSIS_TYPE,
1047 DMI_CHASSIS_VERSION,
1048 DMI_CHASSIS_SERIAL,
1049 DMI_CHASSIS_ASSET_TAG,
1050 DMI_STRING_MAX,
1051 };
1052
1053 struct dmi_strmatch {
1054 unsigned char slot;
1055 char substr[79];
1056 };
1057
1058 struct dmi_system_id {
1059 int (*callback)(const struct dmi_system_id *);
1060 const char *ident;
1061 struct dmi_strmatch matches[4];
1062 };
1063 #define DMI_MATCH(a, b) {(a), (b)}
1064 bool dmi_check_system(const struct dmi_system_id *);
1065
1066 extern int drm_debug_flag;
1067 extern int drm_notyet_flag;
1068 extern unsigned int drm_vblank_offdelay;
1069 extern unsigned int drm_timestamp_precision;
1070 extern unsigned int drm_timestamp_monotonic;
1071
1072 /* Device setup support (drm_drv.c) */
1073 int drm_probe(device_t kdev, drm_pci_id_list_t *idlist);
1074 int drm_attach(device_t kdev, drm_pci_id_list_t *idlist);
1075 int drm_create_cdevs(device_t kdev);
1076 void drm_close(void *data);
1077 int drm_detach(device_t kdev);
1078 d_ioctl_t drm_ioctl;
1079 d_open_t drm_open;
1080 d_read_t drm_read;
1081 d_poll_t drm_poll;
1082 d_mmap_t drm_mmap;
1083 extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
1084
1085 void drm_event_wakeup(struct drm_pending_event *e);
1086
1087 int drm_add_busid_modesetting(struct drm_device *dev,
1088 struct sysctl_ctx_list *ctx, struct sysctl_oid *top);
1089
1090 /* File operations helpers (drm_fops.c) */
1091 extern int drm_open_helper(struct cdev *kdev, int flags, int fmt,
1092 DRM_STRUCTPROC *p,
1093 struct drm_device *dev);
1094
1095 #ifdef DUMBBELL_WIP
1096 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
1097 struct drm_file *file_priv, uint32_t handle, uint32_t flags,
1098 int *prime_fd);
1099 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
1100 struct drm_file *file_priv, int prime_fd, uint32_t *handle);
1101
1102 extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
1103 struct drm_file *file_priv);
1104 extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
1105 struct drm_file *file_priv);
1106
1107 #ifdef DUMBBELL_WIP
1108 /*
1109 * See drm_prime.c
1110 * -- dumbbell@
1111 */
1112 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages,
1113 dma_addr_t *addrs, int max_pages);
1114 #endif /* DUMBBELL_WIP */
1115 extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages);
1116 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
1117
1118
1119 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
1120 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
1121 int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
1122 int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
1123 void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
1124
1125 int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
1126 int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
1127 struct drm_gem_object **obj);
1128 #endif /* DUMBBELL_WIP */
1129
1130 /* Memory management support (drm_memory.c) */
1131 void drm_mem_init(void);
1132 void drm_mem_uninit(void);
1133 void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map);
1134 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map);
1135 void drm_ioremapfree(drm_local_map_t *map);
1136 int drm_mtrr_add(unsigned long offset, size_t size, int flags);
1137 int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags);
1138
1139 int drm_context_switch(struct drm_device *dev, int old, int new);
1140 int drm_context_switch_complete(struct drm_device *dev, int new);
1141
1142 int drm_ctxbitmap_init(struct drm_device *dev);
1143 void drm_ctxbitmap_cleanup(struct drm_device *dev);
1144 void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
1145 int drm_ctxbitmap_next(struct drm_device *dev);
1146
1147 /* Locking IOCTL support (drm_lock.c) */
1148 int drm_lock_take(struct drm_lock_data *lock_data,
1149 unsigned int context);
1150 int drm_lock_transfer(struct drm_lock_data *lock_data,
1151 unsigned int context);
1152 int drm_lock_free(struct drm_lock_data *lock_data,
1153 unsigned int context);
1154
1155 /* Buffer management support (drm_bufs.c) */
1156 unsigned long drm_get_resource_start(struct drm_device *dev,
1157 unsigned int resource);
1158 unsigned long drm_get_resource_len(struct drm_device *dev,
1159 unsigned int resource);
1160 void drm_rmmap(struct drm_device *dev, drm_local_map_t *map);
1161 int drm_order(unsigned long size);
1162 int drm_addmap(struct drm_device *dev, unsigned long offset,
1163 unsigned long size,
1164 enum drm_map_type type, enum drm_map_flags flags,
1165 drm_local_map_t **map_ptr);
1166 int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request);
1167 int drm_addbufs_sg(struct drm_device *dev, struct drm_buf_desc *request);
1168 int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request);
1169
1170 /* DMA support (drm_dma.c) */
1171 int drm_dma_setup(struct drm_device *dev);
1172 void drm_dma_takedown(struct drm_device *dev);
1173 void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf);
1174 void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv);
1175 #define drm_core_reclaim_buffers drm_reclaim_buffers
1176
1177 /* IRQ support (drm_irq.c) */
1178 int drm_irq_install(struct drm_device *dev);
1179 int drm_irq_uninstall(struct drm_device *dev);
1180 irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
1181 void drm_driver_irq_preinstall(struct drm_device *dev);
1182 void drm_driver_irq_postinstall(struct drm_device *dev);
1183 void drm_driver_irq_uninstall(struct drm_device *dev);
1184
1185 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
1186 void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
1187 int drm_modeset_ctl(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv);
1189
1190 extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
1191 extern int drm_wait_vblank(struct drm_device *dev, void *data,
1192 struct drm_file *filp);
1193 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
1194 extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
1195 extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
1196 struct timeval *vblanktime);
1197 extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
1198 void drm_handle_vblank_events(struct drm_device *dev, int crtc);
1199 extern int drm_vblank_get(struct drm_device *dev, int crtc);
1200 extern void drm_vblank_put(struct drm_device *dev, int crtc);
1201 extern void drm_vblank_off(struct drm_device *dev, int crtc);
1202 extern void drm_vblank_cleanup(struct drm_device *dev);
1203 extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
1204 struct timeval *tvblank, unsigned flags);
1205 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
1206 int crtc, int *max_error,
1207 struct timeval *vblank_time,
1208 unsigned flags,
1209 struct drm_crtc *refcrtc);
1210 extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
1211
1212 struct timeval ns_to_timeval(const int64_t nsec);
1213 int64_t timeval_to_ns(const struct timeval *tv);
1214
1215 /* AGP/PCI Express/GART support (drm_agpsupport.c) */
1216 int drm_device_is_agp(struct drm_device *dev);
1217 int drm_device_is_pcie(struct drm_device *dev);
1218 drm_agp_head_t *drm_agp_init(void);
1219 int drm_agp_acquire(struct drm_device *dev);
1220 int drm_agp_release(struct drm_device *dev);
1221 int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info);
1222 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
1223 void *drm_agp_allocate_memory(size_t pages, u32 type);
1224 int drm_agp_free_memory(void *handle);
1225 int drm_agp_bind_memory(void *handle, off_t start);
1226 int drm_agp_unbind_memory(void *handle);
1227 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
1228 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
1229 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
1230 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
1231
1232 /* Scatter Gather Support (drm_scatter.c) */
1233 void drm_sg_cleanup(drm_sg_mem_t *entry);
1234 int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
1235
1236 /* sysctl support (drm_sysctl.h) */
1237 extern int drm_sysctl_init(struct drm_device *dev);
1238 extern int drm_sysctl_cleanup(struct drm_device *dev);
1239
1240 /* ATI PCIGART support (ati_pcigart.c) */
1241 int drm_ati_pcigart_init(struct drm_device *dev,
1242 struct drm_ati_pcigart_info *gart_info);
1243 int drm_ati_pcigart_cleanup(struct drm_device *dev,
1244 struct drm_ati_pcigart_info *gart_info);
1245
1246 /* Cache management (drm_memory.c) */
1247 void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages);
1248
1249 /* Locking IOCTL support (drm_drv.c) */
1250 int drm_lock(struct drm_device *dev, void *data,
1251 struct drm_file *file_priv);
1252 int drm_unlock(struct drm_device *dev, void *data,
1253 struct drm_file *file_priv);
1254 int drm_version(struct drm_device *dev, void *data,
1255 struct drm_file *file_priv);
1256 int drm_setversion(struct drm_device *dev, void *data,
1257 struct drm_file *file_priv);
1258
1259 /* Misc. IOCTL support (drm_ioctl.c) */
1260 int drm_irq_by_busid(struct drm_device *dev, void *data,
1261 struct drm_file *file_priv);
1262 int drm_getunique(struct drm_device *dev, void *data,
1263 struct drm_file *file_priv);
1264 int drm_setunique(struct drm_device *dev, void *data,
1265 struct drm_file *file_priv);
1266 int drm_getmap(struct drm_device *dev, void *data,
1267 struct drm_file *file_priv);
1268 int drm_getclient(struct drm_device *dev, void *data,
1269 struct drm_file *file_priv);
1270 int drm_getstats(struct drm_device *dev, void *data,
1271 struct drm_file *file_priv);
1272 int drm_getcap(struct drm_device *dev, void *data,
1273 struct drm_file *file_priv);
1274 int drm_noop(struct drm_device *dev, void *data,
1275 struct drm_file *file_priv);
1276
1277 /* Context IOCTL support (drm_context.c) */
1278 int drm_resctx(struct drm_device *dev, void *data,
1279 struct drm_file *file_priv);
1280 int drm_addctx(struct drm_device *dev, void *data,
1281 struct drm_file *file_priv);
1282 int drm_modctx(struct drm_device *dev, void *data,
1283 struct drm_file *file_priv);
1284 int drm_getctx(struct drm_device *dev, void *data,
1285 struct drm_file *file_priv);
1286 int drm_switchctx(struct drm_device *dev, void *data,
1287 struct drm_file *file_priv);
1288 int drm_newctx(struct drm_device *dev, void *data,
1289 struct drm_file *file_priv);
1290 int drm_rmctx(struct drm_device *dev, void *data,
1291 struct drm_file *file_priv);
1292 int drm_setsareactx(struct drm_device *dev, void *data,
1293 struct drm_file *file_priv);
1294 int drm_getsareactx(struct drm_device *dev, void *data,
1295 struct drm_file *file_priv);
1296
1297 /* Drawable IOCTL support (drm_drawable.c) */
1298 int drm_adddraw(struct drm_device *dev, void *data,
1299 struct drm_file *file_priv);
1300 int drm_rmdraw(struct drm_device *dev, void *data,
1301 struct drm_file *file_priv);
1302 int drm_update_draw(struct drm_device *dev, void *data,
1303 struct drm_file *file_priv);
1304 struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
1305 int handle);
1306
1307 /* Drawable support (drm_drawable.c) */
1308 void drm_drawable_free_all(struct drm_device *dev);
1309
1310 /* Authentication IOCTL support (drm_auth.c) */
1311 int drm_getmagic(struct drm_device *dev, void *data,
1312 struct drm_file *file_priv);
1313 int drm_authmagic(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv);
1315
1316 /* Buffer management support (drm_bufs.c) */
1317 int drm_addmap_ioctl(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv);
1319 int drm_rmmap_ioctl(struct drm_device *dev, void *data,
1320 struct drm_file *file_priv);
1321 int drm_addbufs(struct drm_device *dev, void *data,
1322 struct drm_file *file_priv);
1323 int drm_infobufs(struct drm_device *dev, void *data,
1324 struct drm_file *file_priv);
1325 int drm_markbufs(struct drm_device *dev, void *data,
1326 struct drm_file *file_priv);
1327 int drm_freebufs(struct drm_device *dev, void *data,
1328 struct drm_file *file_priv);
1329 int drm_mapbufs(struct drm_device *dev, void *data,
1330 struct drm_file *file_priv);
1331
1332 /* DMA support (drm_dma.c) */
1333 int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv);
1334
1335 /* IRQ support (drm_irq.c) */
1336 int drm_control(struct drm_device *dev, void *data,
1337 struct drm_file *file_priv);
1338
1339 /* AGP/GART support (drm_agpsupport.c) */
1340 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
1341 struct drm_file *file_priv);
1342 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
1343 struct drm_file *file_priv);
1344 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv);
1346 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
1347 struct drm_file *file_priv);
1348 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
1349 struct drm_file *file_priv);
1350 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv);
1352 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
1353 struct drm_file *file_priv);
1354 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv);
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
1363 /* Scatter Gather Support (drm_scatter.c) */
1364 int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
1365 struct drm_file *file_priv);
1366 int drm_sg_free(struct drm_device *dev, void *data,
1367 struct drm_file *file_priv);
1368
1369 /* consistent PCI memory functions (drm_pci.c) */
1370 drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
1371 size_t align, dma_addr_t maxaddr);
1372 void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah);
1373
1374 /* Graphics Execution Manager library functions (drm_gem.c) */
1375 int drm_gem_init(struct drm_device *dev);
1376 void drm_gem_destroy(struct drm_device *dev);
1377
1378 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
1379 struct drm_file *file_priv);
1380 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
1381 struct drm_file *file_priv);
1382 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
1383 struct drm_file *file_priv);
1384 int drm_gem_handle_create(struct drm_file *file_priv,
1385 struct drm_gem_object *obj,
1386 u32 *handlep);
1387 int drm_gem_handle_delete(struct drm_file *file_priv, uint32_t handle);
1388 void drm_gem_object_handle_reference(struct drm_gem_object *obj);
1389 void drm_gem_object_handle_unreference(struct drm_gem_object *obj);
1390 void drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj);
1391 void drm_gem_object_handle_free(struct drm_gem_object *obj);
1392 void drm_gem_object_reference(struct drm_gem_object *obj);
1393 void drm_gem_object_unreference(struct drm_gem_object *obj);
1394 void drm_gem_object_unreference_unlocked(struct drm_gem_object *obj);
1395 void drm_gem_object_release(struct drm_gem_object *obj);
1396 void drm_gem_object_free(struct drm_gem_object *obj);
1397 int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj,
1398 size_t size);
1399 int drm_gem_private_object_init(struct drm_device *dev,
1400 struct drm_gem_object *obj, size_t size);
1401 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
1402 size_t size);
1403 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
1404 struct drm_file *file_priv, uint32_t handle);
1405
1406 void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv);
1407 void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv);
1408
1409 int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
1410 void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
1411 int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset,
1412 vm_size_t size, struct vm_object **obj_res, int nprot);
1413 void drm_gem_pager_dtr(void *obj);
1414
1415 struct ttm_bo_device;
1416 int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset,
1417 vm_size_t size, struct vm_object **obj_res, int nprot);
1418 struct ttm_buffer_object;
1419 void ttm_bo_release_mmap(struct ttm_buffer_object *bo);
1420
1421 void drm_device_lock_mtx(struct drm_device *dev);
1422 void drm_device_unlock_mtx(struct drm_device *dev);
1423 int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags,
1424 const char *msg, int timeout);
1425 void drm_device_assert_mtx_locked(struct drm_device *dev);
1426 void drm_device_assert_mtx_unlocked(struct drm_device *dev);
1427
1428 void drm_device_lock_struct(struct drm_device *dev);
1429 void drm_device_unlock_struct(struct drm_device *dev);
1430 int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags,
1431 const char *msg, int timeout);
1432 void drm_device_assert_struct_locked(struct drm_device *dev);
1433 void drm_device_assert_struct_unlocked(struct drm_device *dev);
1434
1435 void drm_compat_locking_init(struct drm_device *dev);
1436 void drm_sleep_locking_init(struct drm_device *dev);
1437
1438 /* drm_modes.c */
1439 bool drm_mode_parse_command_line_for_connector(const char *mode_option,
1440 struct drm_connector *connector, struct drm_cmdline_mode *mode);
1441 struct drm_display_mode *drm_mode_create_from_cmdline_mode(
1442 struct drm_device *dev, struct drm_cmdline_mode *cmd);
1443
1444 /* drm_edid.c */
1445 u8 *drm_find_cea_extension(struct edid *edid);
1446
1447 /* Inline replacements for drm_alloc and friends */
1448 static __inline__ void *
drm_alloc(size_t size,struct malloc_type * area)1449 drm_alloc(size_t size, struct malloc_type *area)
1450 {
1451 return malloc(size, area, M_NOWAIT);
1452 }
1453
1454 static __inline__ void *
drm_calloc(size_t nmemb,size_t size,struct malloc_type * area)1455 drm_calloc(size_t nmemb, size_t size, struct malloc_type *area)
1456 {
1457 return malloc(size * nmemb, area, M_NOWAIT | M_ZERO);
1458 }
1459
1460 static __inline__ void *
drm_realloc(void * oldpt,size_t oldsize,size_t size,struct malloc_type * area)1461 drm_realloc(void *oldpt, size_t oldsize, size_t size,
1462 struct malloc_type *area)
1463 {
1464 return reallocf(oldpt, size, area, M_NOWAIT);
1465 }
1466
1467 static __inline__ void
drm_free(void * pt,size_t size,struct malloc_type * area)1468 drm_free(void *pt, size_t size, struct malloc_type *area)
1469 {
1470 free(pt, area);
1471 }
1472
1473 /* Inline replacements for DRM_IOREMAP macros */
1474 static __inline__ void
drm_core_ioremap_wc(struct drm_local_map * map,struct drm_device * dev)1475 drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
1476 {
1477 map->virtual = drm_ioremap_wc(dev, map);
1478 }
1479 static __inline__ void
drm_core_ioremap(struct drm_local_map * map,struct drm_device * dev)1480 drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
1481 {
1482 map->virtual = drm_ioremap(dev, map);
1483 }
1484 static __inline__ void
drm_core_ioremapfree(struct drm_local_map * map,struct drm_device * dev)1485 drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
1486 {
1487 if ( map->virtual && map->size )
1488 drm_ioremapfree(map);
1489 }
1490
1491 static __inline__ struct drm_local_map *
drm_core_findmap(struct drm_device * dev,unsigned long offset)1492 drm_core_findmap(struct drm_device *dev, unsigned long offset)
1493 {
1494 drm_local_map_t *map;
1495
1496 DRM_LOCK_ASSERT(dev);
1497 TAILQ_FOREACH(map, &dev->maplist, link) {
1498 if (offset == (unsigned long)map->handle)
1499 return map;
1500 }
1501 return NULL;
1502 }
1503
drm_core_dropmap(struct drm_map * map)1504 static __inline__ void drm_core_dropmap(struct drm_map *map)
1505 {
1506 }
1507
1508 #define DRM_PCIE_SPEED_25 1
1509 #define DRM_PCIE_SPEED_50 2
1510 #define DRM_PCIE_SPEED_80 4
1511
1512 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
1513
1514 #define drm_can_sleep() (DRM_HZ & 1)
1515
1516 #endif /* __KERNEL__ */
1517 #endif /* _DRM_P_H_ */
1518