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Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / dev / drm / drm_drv.h
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1/* drm_drv.h -- Generic driver template -*- linux-c -*-
2 * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
3 *
4 * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 * Rickard E. (Rik) Faith <faith@valinux.com>
29 * Gareth Hughes <gareth@valinux.com>
30 *
31 * $FreeBSD: src/sys/dev/drm/drm_drv.h,v 1.13.2.1 2003/04/26 07:05:28 anholt Exp $
32 * $DragonFly: src/sys/dev/drm/Attic/drm_drv.h,v 1.15 2006/09/10 01:26:34 dillon Exp $
33 */
34
35/*
36 * To use this template, you must at least define the following (samples
37 * given for the MGA driver):
38 *
39 * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
40 *
41 * #define DRIVER_NAME "mga"
42 * #define DRIVER_DESC "Matrox G200/G400"
43 * #define DRIVER_DATE "20001127"
44 *
45 * #define DRIVER_MAJOR 2
46 * #define DRIVER_MINOR 0
47 * #define DRIVER_PATCHLEVEL 2
48 *
49 * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
50 *
51 * #define DRM(x) mga_##x
52 */
53
54#ifndef __MUST_HAVE_AGP
55#define __MUST_HAVE_AGP 0
56#endif
57#ifndef __HAVE_CTX_BITMAP
58#define __HAVE_CTX_BITMAP 0
59#endif
60#ifndef __HAVE_DMA_IRQ
61#define __HAVE_DMA_IRQ 0
62#endif
63#ifndef __HAVE_DMA_QUEUE
64#define __HAVE_DMA_QUEUE 0
65#endif
66#ifndef __HAVE_DMA_SCHEDULE
67#define __HAVE_DMA_SCHEDULE 0
68#endif
69#ifndef __HAVE_DMA_QUIESCENT
70#define __HAVE_DMA_QUIESCENT 0
71#endif
72#ifndef __HAVE_RELEASE
73#define __HAVE_RELEASE 0
74#endif
75#ifndef __HAVE_COUNTERS
76#define __HAVE_COUNTERS 0
77#endif
78#ifndef __HAVE_SG
79#define __HAVE_SG 0
80#endif
81
82#ifndef DRIVER_PREINIT
83#define DRIVER_PREINIT()
84#endif
85#ifndef DRIVER_POSTINIT
86#define DRIVER_POSTINIT()
87#endif
88#ifndef DRIVER_PRERELEASE
89#define DRIVER_PRERELEASE()
90#endif
91#ifndef DRIVER_PRETAKEDOWN
92#define DRIVER_PRETAKEDOWN()
93#endif
94#ifndef DRIVER_POSTCLEANUP
95#define DRIVER_POSTCLEANUP()
96#endif
97#ifndef DRIVER_PRESETUP
98#define DRIVER_PRESETUP()
99#endif
100#ifndef DRIVER_POSTSETUP
101#define DRIVER_POSTSETUP()
102#endif
103#ifndef DRIVER_IOCTLS
104#define DRIVER_IOCTLS
105#endif
106#ifndef DRIVER_FOPS
107#endif
108
109#if 1 && DRM_DEBUG_CODE
110int DRM(flags) = DRM_FLAG_DEBUG;
111#else
112int DRM(flags) = 0;
113#endif
114
115static int DRM(init)(device_t nbdev);
116static void DRM(cleanup)(device_t nbdev);
117
118#if defined(__DragonFly__) || defined(__FreeBSD__)
119#define DRIVER_SOFTC(unit) \
120 ((drm_device_t *) devclass_get_softc(DRM(devclass), unit))
121
122#if __REALLY_HAVE_AGP
123MODULE_DEPEND(DRIVER_NAME, agp, 1, 1, 1);
124#endif
125#endif /* __FreeBSD__ */
126
127#ifdef __NetBSD__
128#define DRIVER_SOFTC(unit) \
129 ((drm_device_t *) device_lookup(&DRM(cd), unit))
130#endif /* __NetBSD__ */
131
132static drm_ioctl_desc_t DRM(ioctls)[] = {
133 [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
134 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
135 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
136 [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_busid), 0, 1 },
137 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
138 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
139 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
140
141 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 },
142 [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(noop), 1, 1 },
143 [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(noop), 1, 1 },
144 [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 },
145
146 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 },
147 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 },
148
149#if __HAVE_CTX_BITMAP
150 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
151 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
152#endif
153
154 [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 },
155 [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 },
156 [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 },
157 [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 },
158 [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 },
159 [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 },
160 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 },
161
162 [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 },
163 [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 },
164
165 [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 },
166 [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 },
167 [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(noop), 1, 0 },
168
169#if __HAVE_DMA
170 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 },
171 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 },
172 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
173 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
174 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
175
176 /* The DRM_IOCTL_DMA ioctl should be defined by the driver.
177 */
178 [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
179#endif
180
181#if __REALLY_HAVE_AGP
182 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 },
183 [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 },
184 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 },
185 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 },
186 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 },
187 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 },
188 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 },
189 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 },
190#endif
191
192#if __HAVE_SG
193 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { DRM(sg_alloc), 1, 1 },
194 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 },
195#endif
196
197#if __HAVE_VBL_IRQ
198 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 },
199#endif
200
201 DRIVER_IOCTLS
202};
203
204#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) )
205
206const char *DRM(find_description)(int vendor, int device);
207
208#if defined(__DragonFly__) || defined(__FreeBSD__)
209static struct dev_ops DRM(ops) = {
210 { DRIVER_NAME, CDEV_MAJOR, D_TTY | D_TRACKCLOSE },
211 .d_open = DRM(open),
212 .d_close = DRM(close),
213 .d_read = DRM(read),
214 .d_ioctl = DRM(ioctl),
215 .d_poll = DRM(poll),
216 .d_mmap = DRM(mmap)
217};
218
219static int DRM(probe)(device_t dev)
220{
221 const char *s = NULL;
222
223 int pciid=pci_get_devid(dev);
224 int vendor = (pciid & 0x0000ffff);
225 int device = (pciid & 0xffff0000) >> 16;
226
227 s = DRM(find_description)(vendor, device);
228 if (s) {
229 device_set_desc(dev, s);
230 return 0;
231 }
232
233 return ENXIO;
234}
235
236static int DRM(attach)(device_t dev)
237{
238 return DRM(init)(dev);
239}
240
241static int DRM(detach)(device_t dev)
242{
243 DRM(cleanup)(dev);
244 return 0;
245}
246static device_method_t DRM(methods)[] = {
247 /* Device interface */
248 DEVMETHOD(device_probe, DRM( probe)),
249 DEVMETHOD(device_attach, DRM( attach)),
250 DEVMETHOD(device_detach, DRM( detach)),
251
252 { 0, 0 }
253};
254
255static driver_t DRM(driver) = {
256 "drm",
257 DRM(methods),
258 sizeof(drm_device_t),
259};
260
261static devclass_t DRM(devclass);
262
263#elif defined(__NetBSD__)
264
265static struct cdevsw DRM(cdevsw) = {
266 DRM(open),
267 DRM(close),
268 DRM(read),
269 nowrite,
270 DRM(ioctl),
271 nostop,
272 notty,
273 DRM(poll),
274 DRM(mmap),
275 nokqfilter,
276 D_TTY
277};
278
279int DRM(refcnt) = 0;
280#if __NetBSD_Version__ >= 106080000
281MOD_DEV( DRIVER_NAME, DRIVER_NAME, NULL, -1, &DRM(cdevsw), CDEV_MAJOR);
282#else
283MOD_DEV( DRIVER_NAME, LM_DT_CHAR, CDEV_MAJOR, &DRM(cdevsw) );
284#endif
285
286int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver);
287static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd);
288
289int DRM(modprobe)();
290int DRM(probe)(struct pci_attach_args *pa);
291void DRM(attach)(struct pci_attach_args *pa, cdev_t kdev);
292
293int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver) {
294 DISPATCH(lkmtp, cmd, ver, DRM(lkmhandle), DRM(lkmhandle), DRM(lkmhandle));
295}
296
297static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd)
298{
299 int j, error = 0;
300#if defined(__NetBSD__) && (__NetBSD_Version__ > 106080000)
301 struct lkm_dev *args = lkmtp->private.lkm_dev;
302#endif
303
304 switch(cmd) {
305 case LKM_E_LOAD:
306 if (lkmexists(lkmtp))
307 return EEXIST;
308
309 if(DRM(modprobe)())
310 return 0;
311
312 return 1;
313
314 case LKM_E_UNLOAD:
315 if (DRM(refcnt) > 0)
316 return (EBUSY);
317 break;
318 case LKM_E_STAT:
319 break;
320
321 default:
322 error = EIO;
323 break;
324 }
325
326 return error;
327}
328
329int DRM(modprobe)() {
330 struct pci_attach_args pa;
331 int error = 0;
332 if((error = pci_find_device(&pa, DRM(probe))) != 0)
333 DRM(attach)(&pa, 0);
334
335 return error;
336}
337
338int DRM(probe)(struct pci_attach_args *pa)
339{
340 const char *desc;
341
342 desc = DRM(find_description)(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
343 if (desc != NULL) {
344 return 1;
345 }
346
347 return 0;
348}
349
350void DRM(attach)(struct pci_attach_args *pa, cdev_t kdev)
351{
352 int i;
353 drm_device_t *dev;
354
355 config_makeroom(kdev, &DRM(cd));
356 DRM(cd).cd_devs[(kdev)] = DRM(alloc)(sizeof(drm_device_t),
357 DRM_MEM_DRIVER);
358 dev = DRIVER_SOFTC(kdev);
359
360 memset(dev, 0, sizeof(drm_device_t));
361 memcpy(&dev->pa, pa, sizeof(dev->pa));
362
363 DRM_INFO("%s", DRM(find_description)(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id)));
364 DRM(init)(dev);
365}
366
367int DRM(detach)(struct device *self, int flags)
368{
369 DRM(cleanup)((drm_device_t *)self);
370 return 0;
371}
372
373int DRM(activate)(struct device *self, enum devact act)
374{
375 switch (act) {
376 case DVACT_ACTIVATE:
377 return (EOPNOTSUPP);
378 break;
379
380 case DVACT_DEACTIVATE:
381 /* FIXME */
382 break;
383 }
384 return (0);
385}
386#endif /* __NetBSD__ */
387
388const char *DRM(find_description)(int vendor, int device) {
389 const char *s = NULL;
390 int i=0, done=0;
391
392 while ( !done && (DRM(devicelist)[i].vendor != 0 ) ) {
393 if ( (DRM(devicelist)[i].vendor == vendor) &&
394 (DRM(devicelist)[i].device == device) ) {
395 done=1;
396 if ( DRM(devicelist)[i].supported )
397 s = DRM(devicelist)[i].name;
398 else
399 DRM_INFO("%s not supported\n", DRM(devicelist)[i].name);
400 }
401 i++;
402 }
403 return s;
404}
405
406static int DRM(setup)( drm_device_t *dev )
407{
408 int i;
409
410 DRIVER_PRESETUP();
411 dev->buf_use = 0;
412 dev->buf_alloc = 0;
413
414#if __HAVE_DMA
415 i = DRM(dma_setup)( dev );
416 if ( i < 0 )
417 return i;
418#endif
419
420 dev->counters = 6 + __HAVE_COUNTERS;
421 dev->types[0] = _DRM_STAT_LOCK;
422 dev->types[1] = _DRM_STAT_OPENS;
423 dev->types[2] = _DRM_STAT_CLOSES;
424 dev->types[3] = _DRM_STAT_IOCTLS;
425 dev->types[4] = _DRM_STAT_LOCKS;
426 dev->types[5] = _DRM_STAT_UNLOCKS;
427#ifdef __HAVE_COUNTER6
428 dev->types[6] = __HAVE_COUNTER6;
429#endif
430#ifdef __HAVE_COUNTER7
431 dev->types[7] = __HAVE_COUNTER7;
432#endif
433#ifdef __HAVE_COUNTER8
434 dev->types[8] = __HAVE_COUNTER8;
435#endif
436#ifdef __HAVE_COUNTER9
437 dev->types[9] = __HAVE_COUNTER9;
438#endif
439#ifdef __HAVE_COUNTER10
440 dev->types[10] = __HAVE_COUNTER10;
441#endif
442#ifdef __HAVE_COUNTER11
443 dev->types[11] = __HAVE_COUNTER11;
444#endif
445#ifdef __HAVE_COUNTER12
446 dev->types[12] = __HAVE_COUNTER12;
447#endif
448#ifdef __HAVE_COUNTER13
449 dev->types[13] = __HAVE_COUNTER13;
450#endif
451#ifdef __HAVE_COUNTER14
452 dev->types[14] = __HAVE_COUNTER14;
453#endif
454#ifdef __HAVE_COUNTER15
455 dev->types[14] = __HAVE_COUNTER14;
456#endif
457
458 for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
459 atomic_set( &dev->counts[i], 0 );
460
461 for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
462 dev->magiclist[i].head = NULL;
463 dev->magiclist[i].tail = NULL;
464 }
465
466 dev->maplist = DRM(alloc)(sizeof(*dev->maplist),
467 DRM_MEM_MAPS);
468 if(dev->maplist == NULL) return DRM_ERR(ENOMEM);
469 memset(dev->maplist, 0, sizeof(*dev->maplist));
470 TAILQ_INIT(dev->maplist);
471
472 dev->lock.hw_lock = NULL;
473 dev->lock.lock_queue = 0;
474 dev->irq = 0;
475 dev->context_flag = 0;
476 dev->last_context = 0;
477#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
478 callout_init( &dev->timer, 1 );
479#else
480 callout_init( &dev->timer );
481#endif
482
483#if defined(__DragonFly__) || defined(__FreeBSD__)
484 dev->buf_sigio = NULL;
485#elif defined(__NetBSD__)
486 dev->buf_pgid = 0;
487#endif
488
489 DRM_DEBUG( "\n" );
490
491 DRIVER_POSTSETUP();
492 return 0;
493}
494
495
496static int DRM(takedown)( drm_device_t *dev )
497{
498 drm_magic_entry_t *pt, *next;
499 drm_local_map_t *map;
500 drm_map_list_entry_t *list;
501 int i;
502
503 DRM_DEBUG( "\n" );
504
505 DRIVER_PRETAKEDOWN();
506#if __HAVE_DMA_IRQ
507 if ( dev->irq ) DRM(irq_uninstall)( dev );
508#endif
509
510 DRM_LOCK;
511 callout_stop( &dev->timer );
512
513 if ( dev->unique ) {
514 DRM(free)( dev->unique, strlen( dev->unique ) + 1,
515 DRM_MEM_DRIVER );
516 dev->unique = NULL;
517 dev->unique_len = 0;
518 }
519 /* Clear pid list */
520 for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
521 for ( pt = dev->magiclist[i].head ; pt ; pt = next ) {
522 next = pt->next;
523 DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC );
524 }
525 dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
526 }
527
528#if __REALLY_HAVE_AGP
529 /* Clear AGP information */
530 if ( dev->agp ) {
531 drm_agp_mem_t *entry;
532 drm_agp_mem_t *nexte;
533
534 /* Remove AGP resources, but leave dev->agp
535 intact until drv_cleanup is called. */
536 for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
537 nexte = entry->next;
538 if ( entry->bound ) DRM(unbind_agp)( entry->handle );
539 DRM(free_agp)( entry->handle, entry->pages );
540 DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS );
541 }
542 dev->agp->memory = NULL;
543
544 if ( dev->agp->acquired ) DRM(agp_do_release)();
545
546 dev->agp->acquired = 0;
547 dev->agp->enabled = 0;
548 }
549#endif
550
551 if( dev->maplist ) {
552 while ((list=TAILQ_FIRST(dev->maplist))) {
553 map = list->map;
554 switch ( map->type ) {
555 case _DRM_REGISTERS:
556 case _DRM_FRAME_BUFFER:
557#if __REALLY_HAVE_MTRR
558 if ( map->mtrr >= 0 ) {
559 int retcode;
560#if defined(__DragonFly__) || defined(__FreeBSD__)
561 int act;
562 struct mem_range_desc mrdesc;
563 mrdesc.mr_base = map->offset;
564 mrdesc.mr_len = map->size;
565 mrdesc.mr_flags = MDF_WRITECOMBINE;
566 act = MEMRANGE_SET_UPDATE;
567 bcopy(DRIVER_NAME, &mrdesc.mr_owner, strlen(DRIVER_NAME));
568 retcode = mem_range_attr_set(&mrdesc, &act);
569 map->mtrr=1;
570#elif defined __NetBSD__
571 struct mtrr mtrrmap;
572 int one = 1;
573 mtrrmap.base = map->offset;
574 mtrrmap.len = map->size;
575 mtrrmap.type = MTRR_TYPE_WC;
576 mtrrmap.flags = 0;
577 retcode = mtrr_set( &mtrrmap, &one,
578 DRM_CURPROC, MTRR_GETSET_KERNEL);
579#endif
580 DRM_DEBUG( "mtrr_del=%d\n", retcode );
581 }
582#endif
583 DRM(ioremapfree)( map );
584 break;
585 case _DRM_SHM:
586 DRM(free)(map->handle,
587 map->size,
588 DRM_MEM_SAREA);
589 break;
590
591 case _DRM_AGP:
592 /* Do nothing here, because this is all
593 * handled in the AGP/GART driver.
594 */
595 break;
596 case _DRM_SCATTER_GATHER:
597 /* Handle it, but do nothing, if REALLY_HAVE_SG
598 * isn't defined.
599 */
600#if __REALLY_HAVE_SG
601 if(dev->sg) {
602 DRM(sg_cleanup)(dev->sg);
603 dev->sg = NULL;
604 }
605#endif
606 break;
607 }
608 TAILQ_REMOVE(dev->maplist, list, link);
609 DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
610 DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
611 }
612 DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
613 dev->maplist = NULL;
614 }
615
616#if __HAVE_DMA
617 DRM(dma_takedown)( dev );
618#endif
619 if ( dev->lock.hw_lock ) {
620 dev->lock.hw_lock = NULL; /* SHM removed */
621 dev->lock.filp = NULL;
622 DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
623 }
624 DRM_UNLOCK;
625
626 return 0;
627}
628
629/* linux: drm_init is called via init_module at module load time, or via
630 * linux/init/main.c (this is not currently supported).
631 * bsd: drm_init is called via the attach function per device.
632 */
633static int DRM(init)( device_t nbdev )
634{
635 int unit;
636#if defined(__DragonFly__) || defined(__FreeBSD__)
637 drm_device_t *dev;
638#elif defined(__NetBSD__)
639 drm_device_t *dev = nbdev;
640#endif
641#if __HAVE_CTX_BITMAP
642 int retcode;
643#endif
644 DRM_DEBUG( "\n" );
645 DRIVER_PREINIT();
646
647#if defined(__DragonFly__) || defined(__FreeBSD__)
648 unit = device_get_unit(nbdev);
649 dev = device_get_softc(nbdev);
650 memset( (void *)dev, 0, sizeof(*dev) );
651 dev->device = nbdev;
652 dev_ops_add(&DRM(ops), -1, unit);
653 dev->devnode = make_dev( &DRM(ops),
654 unit,
655 DRM_DEV_UID,
656 DRM_DEV_GID,
657 DRM_DEV_MODE,
658 "dri/card%d", unit );
659 reference_dev(dev->devnode);
660#elif defined(__NetBSD__)
661 unit = minor(dev->device.dv_unit);
662#endif
663 DRM_SPININIT(dev->count_lock, "drm device");
664 lockinit(&dev->dev_lock, "drmlk", 0, 0);
665 dev->name = DRIVER_NAME;
666 DRM(mem_init)();
667 DRM(sysctl_init)(dev);
668 TAILQ_INIT(&dev->files);
669
670#if __REALLY_HAVE_AGP
671 dev->agp = DRM(agp_init)();
672#if __MUST_HAVE_AGP
673 if ( dev->agp == NULL ) {
674 DRM_ERROR( "Cannot initialize the agpgart module.\n" );
675 DRM(sysctl_cleanup)( dev );
676#if defined(__DragonFly__) || defined(__FreeBSD__)
677 destroy_dev(dev->devnode);
678#endif
679 DRM(takedown)( dev );
680 return DRM_ERR(ENOMEM);
681 }
682#endif /* __MUST_HAVE_AGP */
683#if __REALLY_HAVE_MTRR
684 if (dev->agp) {
685#if defined(__DragonFly__) || defined(__FreeBSD__)
686 int retcode = 0, act;
687 struct mem_range_desc mrdesc;
688 mrdesc.mr_base = dev->agp->info.ai_aperture_base;
689 mrdesc.mr_len = dev->agp->info.ai_aperture_size;
690 mrdesc.mr_flags = MDF_WRITECOMBINE;
691 act = MEMRANGE_SET_UPDATE;
692 bcopy(DRIVER_NAME, &mrdesc.mr_owner, strlen(DRIVER_NAME));
693 retcode = mem_range_attr_set(&mrdesc, &act);
694 dev->agp->agp_mtrr=1;
695#elif defined __NetBSD__
696 struct mtrr mtrrmap;
697 int one = 1;
698 mtrrmap.base = dev->agp->info.ai_aperture_base;
699 mtrrmap.len = dev->agp->info.ai_aperture_size;
700 mtrrmap.type = MTRR_TYPE_WC;
701 mtrrmap.flags = MTRR_VALID;
702 dev->agp->agp_mtrr = mtrr_set( &mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);
703#endif /* __NetBSD__ */
704 }
705#endif /* __REALLY_HAVE_MTRR */
706#endif /* __REALLY_HAVE_AGP */
707
708#if __HAVE_CTX_BITMAP
709 retcode = DRM(ctxbitmap_init)( dev );
710 if( retcode ) {
711 DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
712 DRM(sysctl_cleanup)( dev );
713#if defined(__DragonFly__) || defined(__FreeBSD__)
714 destroy_dev(dev->devnode);
715#endif
716 DRM(takedown)( dev );
717 return retcode;
718 }
719#endif
720 DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
721 DRIVER_NAME,
722 DRIVER_MAJOR,
723 DRIVER_MINOR,
724 DRIVER_PATCHLEVEL,
725 DRIVER_DATE,
726 unit );
727
728 DRIVER_POSTINIT();
729
730 return 0;
731}
732
733/* linux: drm_cleanup is called via cleanup_module at module unload time.
734 * bsd: drm_cleanup is called per device at module unload time.
735 * FIXME: NetBSD
736 */
737static void DRM(cleanup)(device_t nbdev)
738{
739 drm_device_t *dev;
740#ifdef __NetBSD__
741#if __REALLY_HAVE_MTRR
742 struct mtrr mtrrmap;
743 int one = 1;
744#endif /* __REALLY_HAVE_MTRR */
745 dev = nbdev;
746#endif /* __NetBSD__ */
747
748 DRM_DEBUG( "\n" );
749
750#if defined(__DragonFly__) || defined(__FreeBSD__)
751 dev = device_get_softc(nbdev);
752#endif
753 DRM(sysctl_cleanup)( dev );
754#if defined(__DragonFly__) || defined(__FreeBSD__)
755 destroy_dev(dev->devnode);
756#endif
757#if __HAVE_CTX_BITMAP
758 DRM(ctxbitmap_cleanup)( dev );
759#endif
760
761#if __REALLY_HAVE_AGP && __REALLY_HAVE_MTRR
762 if ( dev->agp && dev->agp->agp_mtrr >= 0) {
763#if defined(__NetBSD__)
764 mtrrmap.base = dev->agp->info.ai_aperture_base;
765 mtrrmap.len = dev->agp->info.ai_aperture_size;
766 mtrrmap.type = 0;
767 mtrrmap.flags = 0;
768 mtrr_set( &mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);
769#endif
770 }
771#endif
772 dev_ops_remove(&DRM(ops), -1, device_get_unit(nbdev));
773
774 DRM(takedown)( dev );
775
776#if __REALLY_HAVE_AGP
777 if ( dev->agp ) {
778 DRM(agp_uninit)();
779 DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS );
780 dev->agp = NULL;
781 }
782#endif
783 DRIVER_POSTCLEANUP();
784 DRM(mem_uninit)();
785 DRM_SPINUNINIT(dev->count_lock);
786}
787
788
789int DRM(version)( DRM_IOCTL_ARGS )
790{
791 drm_version_t version;
792 int len;
793
794 DRM_COPY_FROM_USER_IOCTL( version, (drm_version_t *)data, sizeof(version) );
795
796#define DRM_COPY( name, value ) \
797 len = strlen( value ); \
798 if ( len > name##_len ) len = name##_len; \
799 name##_len = strlen( value ); \
800 if ( len && name ) { \
801 if ( DRM_COPY_TO_USER( name, value, len ) ) \
802 return DRM_ERR(EFAULT); \
803 }
804
805 version.version_major = DRIVER_MAJOR;
806 version.version_minor = DRIVER_MINOR;
807 version.version_patchlevel = DRIVER_PATCHLEVEL;
808
809 DRM_COPY( version.name, DRIVER_NAME );
810 DRM_COPY( version.date, DRIVER_DATE );
811 DRM_COPY( version.desc, DRIVER_DESC );
812
813 DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, version, sizeof(version) );
814
815 return 0;
816}
817
818int DRM(open)(struct dev_open_args *ap)
819{
820 cdev_t kdev = ap->a_head.a_dev;
821 drm_device_t *dev = NULL;
822 int retcode = 0;
823
824 dev = DRIVER_SOFTC(minor(kdev));
825
826 DRM_DEBUG( "open_count = %d\n", dev->open_count );
827
828 retcode = DRM(open_helper)(kdev, ap->a_oflags, ap->a_devtype,
829 curthread, dev);
830
831 if ( !retcode ) {
832 atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
833 DRM_SPINLOCK( &dev->count_lock );
834#if defined(__DragonFly__) || defined(__FreeBSD__)
835 device_busy(dev->device);
836#endif
837 if ( !dev->open_count++ )
838 retcode = DRM(setup)( dev );
839 DRM_SPINUNLOCK( &dev->count_lock );
840 }
841
842 return retcode;
843}
844
845int DRM(close)(struct dev_close_args *ap)
846{
847 cdev_t kdev = ap->a_head.a_dev;
848 drm_file_t *priv;
849 DRM_DEVICE;
850 int retcode = 0;
851 DRMFILE __unused filp = (void *)(DRM_CURRENTPID);
852
853 DRM_DEBUG( "open_count = %d\n", dev->open_count );
854 priv = DRM(find_file_by_proc)(dev, curthread);
855 if (!priv) {
856 DRM_DEBUG("can't find authenticator\n");
857 return EINVAL;
858 }
859
860 DRIVER_PRERELEASE();
861
862 /* ========================================================
863 * Begin inline drm_release
864 */
865
866#if defined(__DragonFly__) || defined(__FreeBSD__)
867 DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
868 DRM_CURRENTPID, (long)dev->device, dev->open_count );
869#elif defined(__NetBSD__)
870 DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
871 DRM_CURRENTPID, (long)&dev->device, dev->open_count);
872#endif
873
874 if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
875 && dev->lock.filp == (void *)DRM_CURRENTPID) {
876 DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
877 DRM_CURRENTPID,
878 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
879#if HAVE_DRIVER_RELEASE
880 DRIVER_RELEASE();
881#endif
882 DRM(lock_free)(dev,
883 &dev->lock.hw_lock->lock,
884 _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
885
886 /* FIXME: may require heavy-handed reset of
887 hardware at this point, possibly
888 processed via a callback to the X
889 server. */
890 }
891#if __HAVE_RELEASE
892 else if ( dev->lock.hw_lock ) {
893 /* The lock is required to reclaim buffers */
894 for (;;) {
895 if ( !dev->lock.hw_lock ) {
896 /* Device has been unregistered */
897 retcode = DRM_ERR(EINTR);
898 break;
899 }
900 if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
901 DRM_KERNEL_CONTEXT ) ) {
902 dev->lock.pid = DRM_CURRENTPID;
903 dev->lock.lock_time = jiffies;
904 atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
905 break; /* Got lock */
906 }
907 /* Contention */
908#if 0
909 atomic_inc( &dev->total_sleeps );
910#endif
911 retcode = tsleep((void *)&dev->lock.lock_queue,
912 PCATCH, "drmlk2", 0);
913 if (retcode)
914 break;
915 }
916 if( !retcode ) {
917 DRIVER_RELEASE();
918 DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
919 DRM_KERNEL_CONTEXT );
920 }
921 }
922#elif __HAVE_DMA
923 DRM(reclaim_buffers)( dev, (void *)priv->pid );
924#endif
925
926#if defined (__FreeBSD__) && (__FreeBSD_version >= 500000)
927 funsetown(&dev->buf_sigio);
928#elif defined(__DragonFly__) || defined(__FreeBSD__)
929 funsetown(dev->buf_sigio);
930#elif defined(__NetBSD__)
931 dev->buf_pgid = 0;
932#endif /* __NetBSD__ */
933
934 DRM_LOCK;
935 priv = DRM(find_file_by_proc)(dev, curthread);
936 if (priv) {
937 priv->refs--;
938 if (!priv->refs) {
939 TAILQ_REMOVE(&dev->files, priv, link);
940 DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES );
941 }
942 }
943 DRM_UNLOCK;
944
945
946 /* ========================================================
947 * End inline drm_release
948 */
949
950 atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
951 DRM_SPINLOCK( &dev->count_lock );
952#if defined(__DragonFly__) || defined(__FreeBSD__)
953 device_unbusy(dev->device);
954#endif
955 if ( !--dev->open_count ) {
956 DRM_SPINUNLOCK( &dev->count_lock );
957 return DRM(takedown)( dev );
958 }
959 DRM_SPINUNLOCK( &dev->count_lock );
960
961 return retcode;
962}
963
964/* DRM(ioctl) is called whenever a process performs an ioctl on /dev/drm.
965 */
966int DRM(ioctl)(struct dev_ioctl_args *ap)
967{
968 cdev_t kdev = ap->a_head.a_dev;
969 DRM_DEVICE;
970 int retcode = 0;
971 drm_ioctl_desc_t *ioctl;
972 int (*func)(DRM_IOCTL_ARGS);
973 int nr = DRM_IOCTL_NR(ap->a_cmd);
974 DRM_PRIV;
975
976 atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
977 ++priv->ioctl_count;
978
979#if defined(__DragonFly__) || defined(__FreeBSD__)
980 DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
981 DRM_CURRENTPID, ap->a_cmd, nr, (long)dev->device, priv->authenticated );
982#elif defined(__NetBSD__)
983 DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
984 DRM_CURRENTPID, ap->a_cmd, nr, (long)&dev->device, priv->authenticated );
985#endif
986
987 switch (ap->a_cmd) {
988 case FIOASYNC:
989 dev->flags |= FASYNC;
990 return 0;
991
992#if defined(__DragonFly__) || defined(__FreeBSD__)
993 case FIOSETOWN:
994 return fsetown(*(int *)ap->a_data, &dev->buf_sigio);
995
996 case FIOGETOWN:
997#if defined(__FreeBSD__) && (__FreeBSD_version >= 500000)
998 *(int *) ap->a_data = fgetown(&dev->buf_sigio);
999#else
1000 *(int *) ap->a_data = fgetown(dev->buf_sigio);
1001#endif
1002 return 0;
1003#endif /* __FreeBSD__ */
1004#ifdef __NetBSD__
1005 case TIOCSPGRP:
1006 dev->buf_pgid = *(int *)ap->a_data;
1007 return 0;
1008
1009 case TIOCGPGRP:
1010 *(int *)ap->a_data = dev->buf_pgid;
1011 return 0;
1012#endif /* __NetBSD__ */
1013 }
1014
1015 if ( nr >= DRIVER_IOCTL_COUNT ) {
1016 retcode = EINVAL;
1017 } else {
1018 ioctl = &DRM(ioctls)[nr];
1019 func = ioctl->func;
1020
1021 if ( !func ) {
1022 DRM_DEBUG( "no function\n" );
1023 retcode = EINVAL;
1024 } else if ( ( ioctl->root_only && suser_cred(ap->a_cred, 0) )
1025 || ( ioctl->auth_needed && !priv->authenticated ) ) {
1026 retcode = EACCES;
1027 } else {
1028 retcode = func(kdev, ap->a_cmd, ap->a_data, ap->a_fflag, curthread, (void *)DRM_CURRENTPID);
1029 }
1030 }
1031
1032 return DRM_ERR(retcode);
1033}
1034
1035int DRM(lock)( DRM_IOCTL_ARGS )
1036{
1037 DRM_DEVICE;
1038 drm_lock_t lock;
1039 int ret = 0;
1040
1041 DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) );
1042
1043 if ( lock.context == DRM_KERNEL_CONTEXT ) {
1044 DRM_ERROR( "Process %d using kernel context %d\n",
1045 DRM_CURRENTPID, lock.context );
1046 return DRM_ERR(EINVAL);
1047 }
1048
1049 DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
1050 lock.context, DRM_CURRENTPID,
1051 dev->lock.hw_lock->lock, lock.flags );
1052
1053#if __HAVE_DMA_QUEUE
1054 if ( lock.context < 0 )
1055 return DRM_ERR(EINVAL);
1056#endif
1057
1058 if ( !ret ) {
1059 for (;;) {
1060 if ( !dev->lock.hw_lock ) {
1061 /* Device has been unregistered */
1062 ret = EINTR;
1063 break;
1064 }
1065 if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
1066 lock.context ) ) {
1067 dev->lock.filp = (void *)DRM_CURRENTPID;
1068 dev->lock.lock_time = jiffies;
1069 atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
1070 break; /* Got lock */
1071 }
1072
1073 /* Contention */
1074 ret = tsleep((void *)&dev->lock.lock_queue,
1075 PCATCH, "drmlk2", 0);
1076 if (ret)
1077 break;
1078 }
1079 }
1080
1081 if ( !ret ) {
1082 /* FIXME: Add signal blocking here */
1083
1084#if __HAVE_DMA_QUIESCENT
1085 if ( lock.flags & _DRM_LOCK_QUIESCENT ) {
1086 DRIVER_DMA_QUIESCENT();
1087 }
1088#endif
1089 }
1090
1091 DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
1092
1093 return DRM_ERR(ret);
1094}
1095
1096
1097int DRM(unlock)( DRM_IOCTL_ARGS )
1098{
1099 DRM_DEVICE;
1100 drm_lock_t lock;
1101
1102 DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) ) ;
1103
1104 if ( lock.context == DRM_KERNEL_CONTEXT ) {
1105 DRM_ERROR( "Process %d using kernel context %d\n",
1106 DRM_CURRENTPID, lock.context );
1107 return DRM_ERR(EINVAL);
1108 }
1109
1110 atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
1111
1112 DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
1113 DRM_KERNEL_CONTEXT );
1114#if __HAVE_DMA_SCHEDULE
1115 DRM(dma_schedule)( dev, 1 );
1116#endif
1117
1118 /* FIXME: Do we ever really need to check this?
1119 */
1120 if ( 1 /* !dev->context_flag */ ) {
1121 if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
1122 DRM_KERNEL_CONTEXT ) ) {
1123 DRM_ERROR( "\n" );
1124 }
1125 }
1126
1127 return 0;
1128}
1129
1130#if DRM_LINUX
1131
1132#include <sys/file2.h>
1133#include <sys/mapped_ioctl.h>
1134#include <sys/sysproto.h>
1135#include <emulation/linux/linux_ioctl.h>
1136
1137MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
1138
1139#define LINUX_IOCTL_DRM_MIN 0x6400
1140#define LINUX_IOCTL_DRM_MAX 0x64ff
1141
1142static struct ioctl_map_range DRM(ioctl_cmds)[] = {
1143 MAPPED_IOCTL_MAPRANGE(LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX, LINUX_IOCTL_DRM_MIN,
1144 LINUX_IOCTL_DRM_MAX, NULL, linux_gen_dirmap),
1145 MAPPED_IOCTL_MAPF(0, 0, NULL)
1146};
1147
1148static struct ioctl_map_handler DRM(ioctl_handler) = {
1149 &linux_ioctl_map,
1150 __XSTRING(DRM(linux)),
1151 DRM(ioctl_cmds)
1152};
1153
1154SYSINIT(DRM(register), SI_SUB_KLD, SI_ORDER_MIDDLE,
1155 mapped_ioctl_register_handler, &DRM(ioctl_handler));
1156SYSUNINIT(DRM(unregister), SI_SUB_KLD, SI_ORDER_MIDDLE,
1157 mapped_ioctl_unregister_handler, &DRM(ioctl_handler));
1158
1159#endif /* DRM_LINUX */
DragonFly Project Source