summaryrefslogtreecommitdiff
path: root/bsd-core/drm_os_freebsd.h
blob: ff2a646091da8bb960109e5e166212f106beb50c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/stat.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/fcntl.h>
#include <sys/uio.h>
#include <sys/filio.h>
#include <sys/sysctl.h>
#include <sys/bus.h>
#include <sys/signalvar.h>
#include <sys/poll.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <vm/vm_map.h>
#include <vm/vm_param.h>
#include <machine/param.h>
#include <machine/pmap.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/mman.h>
#include <sys/rman.h>
#include <sys/memrange.h>
#include <pci/pcivar.h>
#if __FreeBSD_version >= 500000
#include <sys/selinfo.h>
#else
#include <sys/select.h>
#endif
#include <sys/bus.h>
#if __FreeBSD_version >= 400005
#include <sys/taskqueue.h>
#endif
#if __FreeBSD_version >= 500000
#include <sys/mutex.h>
#endif

#if __FreeBSD_version >= 400006
#define __REALLY_HAVE_AGP	__HAVE_AGP
#endif

#define __REALLY_HAVE_MTRR	(__HAVE_MTRR)
#define __REALLY_HAVE_SG	(__HAVE_SG)

#if __REALLY_HAVE_AGP
#include <pci/agpvar.h>
#include <sys/agpio.h>
#endif

#include <opt_drm.h>
#if DRM_DEBUG
#undef  DRM_DEBUG_CODE
#define DRM_DEBUG_CODE 2
#endif
#undef DRM_DEBUG

#if DRM_LINUX
#include <sys/file.h>
#include <sys/proc.h>
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#endif

#define DRM_TIME_SLICE	      (hz/20)  /* Time slice for GLXContexts	  */

#define DRM_DEV_MODE	(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
#define DRM_DEV_UID	0
#define DRM_DEV_GID	0
#define CDEV_MAJOR	145

#if __FreeBSD_version >= 500000
#define DRM_CURPROC		curthread
#define DRM_STRUCTPROC		struct thread
#define DRM_SPINTYPE		struct mtx
#define DRM_SPININIT(l,name)	mtx_init(&l, name, NULL, MTX_DEF)
#define DRM_SPINLOCK(l)		mtx_lock(l)
#define DRM_SPINUNLOCK(u)	mtx_unlock(u);
#define DRM_CURRENTPID		curthread->td_proc->p_pid
#else
#define DRM_CURPROC		curproc
#define DRM_STRUCTPROC		struct proc
#define DRM_SPINTYPE		struct simplelock
#define DRM_SPININIT(l,name)	simple_lock_init(&l)
#define DRM_SPINLOCK(l)		simple_lock(l)
#define DRM_SPINUNLOCK(u)	simple_unlock(u);
#define DRM_CURRENTPID		curproc->p_pid
#endif

#define DRM_IOCTL_ARGS		dev_t kdev, u_long cmd, caddr_t data, int flags, DRM_STRUCTPROC *p
#define DRM_LOCK		lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, DRM_CURPROC)
#define DRM_UNLOCK 		lockmgr(&dev->dev_lock, LK_RELEASE, 0, DRM_CURPROC)
#define DRM_SUSER(p)		suser(p)
#define DRM_TASKQUEUE_ARGS	void *arg, int pending
#define DRM_IRQ_ARGS		void *arg
#define DRM_DEVICE		drm_device_t	*dev	= kdev->si_drv1
#define DRM_MALLOC(size)	malloc( size, DRM(M_DRM), M_NOWAIT )
#define DRM_FREE(pt)		free( pt, DRM(M_DRM) )
#define DRM_VTOPHYS(addr)	vtophys(addr)
#define DRM_READ8(addr)		*((volatile char *)(addr))
#define DRM_READ32(addr)	*((volatile long *)(addr))
#define DRM_WRITE8(addr, val)	*((volatile char *)(addr)) = (val)
#define DRM_WRITE32(addr, val)	*((volatile long *)(addr)) = (val)
#define DRM_AGP_FIND_DEVICE()	agp_find_device()
#define DRM_ERR(v)		v

#define DRM_PRIV					\
	drm_file_t	*priv	= (drm_file_t *) DRM(find_file_by_proc)(dev, p); \
	if (!priv) {						\
		DRM_DEBUG("can't find authenticator\n");	\
		return EINVAL;					\
	}

#define DRM_UDELAY( udelay )					\
do {								\
	struct timeval tv1, tv2;				\
	microtime(&tv1);					\
	do {							\
		microtime(&tv2);				\
	}							\
	while (((tv2.tv_sec-tv1.tv_sec)*1000000 + tv2.tv_usec - tv1.tv_usec) < udelay ); \
} while (0)

#define DRM_GETSAREA()					\
do {								\
	drm_map_list_entry_t *listentry;			\
	TAILQ_FOREACH(listentry, dev->maplist, link) {		\
		drm_map_t *map = listentry->map;		\
		if (map->type == _DRM_SHM &&			\
			map->flags & _DRM_CONTAINS_LOCK) {	\
			dev_priv->sarea = map;			\
			break;					\
		}						\
	}							\
} while (0)

#define DRM_HZ hz

#define DRM_WAIT_ON( ret, queue, timeout, condition )			\
while (!condition) {							\
	ret = tsleep( &(queue), PZERO | PCATCH, "drmwtq", (timeout) );	\
	if ( ret )							\
		return ret;						\
}

#define DRM_WAKEUP( queue ) wakeup( queue )
#define DRM_WAKEUP_INT( queue ) wakeup( queue )
#define DRM_INIT_WAITQUEUE( queue )  do {} while (0)

#define DRM_COPY_TO_USER_IOCTL(user, kern, size)	\
	if ( IOCPARM_LEN(cmd) != size)			\
		return EINVAL;				\
	*user = kern;
#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \
	if ( IOCPARM_LEN(cmd) != size)			\
		return EINVAL;				\
	kern = *user;
#define DRM_COPY_TO_USER(user, kern, size) \
	copyout(kern, user, size)
#define DRM_COPY_FROM_USER(kern, user, size) \
	copyin(user, kern, size)
/* Macros for userspace access with checking readability once */
/* FIXME: can't find equivalent functionality for nocheck yet.
 * It's be slower than linux, but should be correct.
 */
#define DRM_VERIFYAREA_READ( uaddr, size )		\
	(!useracc((caddr_t)uaddr, size, VM_PROT_READ))
#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) 	\
	copyin(arg2, arg1, arg3)
#define DRM_GET_USER_UNCHECKED(val, uaddr)			\
	((val) = fuword(uaddr), 0)

/* From machine/bus_at386.h on i386 */
#define DRM_READMEMORYBARRIER()					\
do {									\
   	__asm __volatile("lock; addl $0,0(%%esp)" : : : "memory");	\
} while (0)

#define DRM_WRITEMEMORYBARRIER()					\
do {									\
   	__asm __volatile("" : : : "memory");				\
} while (0)


#define PAGE_ALIGN(addr) round_page(addr)

#define malloctype DRM(M_DRM)
/* The macros confliced in the MALLOC_DEFINE */
MALLOC_DECLARE(malloctype);
#undef malloctype

typedef struct drm_chipinfo
{
	int vendor;
	int device;
	int supported;
	char *name;
} drm_chipinfo_t;

#define cpu_to_le32(x) (x)

typedef u_int32_t dma_addr_t;
typedef u_int32_t atomic_t;
typedef u_int32_t cycles_t;
typedef u_int32_t spinlock_t;
typedef u_int32_t u32;
typedef u_int16_t u16;
typedef u_int8_t u8;
#define atomic_set(p, v)	(*(p) = (v))
#define atomic_read(p)		(*(p))
#define atomic_inc(p)		atomic_add_int(p, 1)
#define atomic_dec(p)		atomic_subtract_int(p, 1)
#define atomic_add(n, p)	atomic_add_int(p, n)
#define atomic_sub(n, p)	atomic_subtract_int(p, n)

/* Fake this */
static __inline atomic_t
test_and_set_bit(int b, volatile void *p)
{
	int s = splhigh();
	unsigned int m = 1<<b;
	unsigned int r = *(volatile int *)p & m;
	*(volatile int *)p |= m;
	splx(s);
	return r;
}

static __inline void
clear_bit(int b, volatile void *p)
{
    atomic_clear_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f));
}

static __inline void
set_bit(int b, volatile void *p)
{
    atomic_set_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f));
}

static __inline int
test_bit(int b, volatile void *p)
{
    return ((volatile int *)p)[b >> 5] & (1 << (b & 0x1f));
}

static __inline int
find_first_zero_bit(volatile void *p, int max)
{
    int b;

    for (b = 0; b < max; b += 32) {
	if (((volatile int *)p)[b >> 5] != ~0) {
	    for (;;) {
		if ((((volatile int *)p)[b >> 5] & (1 << (b & 0x1f))) == 0)
		    return b;
		b++;
	    }
	}
    }
    return max;
}

#define spldrm()		spltty()

#define memset(p, v, s)		bzero(p, s)

/*
 * Fake out the module macros for versions of FreeBSD where they don't
 * exist.
 */
#if (__FreeBSD_version < 500002 && __FreeBSD_version > 500000) || __FreeBSD_version < 420000
/* FIXME: again, what's the exact date? */
#define MODULE_VERSION(a,b)		struct __hack
#define MODULE_DEPEND(a,b,c,d,e)	struct __hack

#endif

#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
#define _DRM_CAS(lock,old,new,__ret)				       \
	do {							       \
		int __dummy;	/* Can't mark eax as clobbered */      \
		__asm__ __volatile__(				       \
			"lock ; cmpxchg %4,%1\n\t"		       \
			"setnz %0"				       \
			: "=d" (__ret),				       \
			  "=m" (__drm_dummy_lock(lock)),	       \
			  "=a" (__dummy)			       \
			: "2" (old),				       \
			  "r" (new));				       \
	} while (0)

/* Redefinitions to make templating easy */
#define wait_queue_head_t	atomic_t
#define agp_memory		void
#define jiffies			ticks

				/* Macros to make printf easier */
#define DRM_ERROR(fmt, arg...) \
	printf("error: " "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ## arg)
#define DRM_MEM_ERROR(area, fmt, arg...) \
	printf("error: " "[" DRM_NAME ":%s:%s] *ERROR* " fmt , \
		__func__, DRM(mem_stats)[area].name , ##arg)
#define DRM_INFO(fmt, arg...)  printf("info: " "[" DRM_NAME "] " fmt , ## arg)

#if DRM_DEBUG_CODE
#define DRM_DEBUG(fmt, arg...)						  \
	do {								  \
		if (DRM(flags) & DRM_FLAG_DEBUG)			  \
			printf("[" DRM_NAME ":%s] " fmt , __func__ , ## arg); \
	} while (0)
#else
#define DRM_DEBUG(fmt, arg...)		 do { } while (0)
#endif

#define DRM_PROC_LIMIT (PAGE_SIZE-80)

#if (__FreeBSD_version >= 500000) || ((__FreeBSD_version < 500000) && (__FreeBSD_version >= 410002))
#define DRM_SYSCTL_HANDLER_ARGS	(SYSCTL_HANDLER_ARGS)
#else
#define DRM_SYSCTL_HANDLER_ARGS	SYSCTL_HANDLER_ARGS
#endif

#define DRM_SYSCTL_PRINT(fmt, arg...)		\
  snprintf(buf, sizeof(buf), fmt, ##arg);	\
  error = SYSCTL_OUT(req, buf, strlen(buf));	\
  if (error) return error;

#define DRM_SYSCTL_PRINT_RET(ret, fmt, arg...)	\
  snprintf(buf, sizeof(buf), fmt, ##arg);	\
  error = SYSCTL_OUT(req, buf, strlen(buf));	\
  if (error) { ret; return error; }


#define DRM_FIND_MAP(dest, o)						\
	do {								\
		drm_map_list_entry_t *listentry;			\
		TAILQ_FOREACH(listentry, dev->maplist, link) {		\
			if ( listentry->map->offset == o ) {		\
				dest = listentry->map;			\
				break;					\
			}						\
		}							\
	} while (0)


/* Internal functions */

/* drm_drv.h */
extern d_ioctl_t	DRM(ioctl);
extern d_ioctl_t	DRM(lock);
extern d_ioctl_t	DRM(unlock);
extern d_open_t		DRM(open);
extern d_close_t	DRM(close);
extern d_read_t		DRM(read);
extern d_write_t	DRM(write);
extern d_poll_t		DRM(poll);
extern d_mmap_t		DRM(mmap);
extern int		DRM(open_helper)(dev_t kdev, int flags, int fmt, 
					 DRM_STRUCTPROC *p, drm_device_t *dev);
extern drm_file_t	*DRM(find_file_by_proc)(drm_device_t *dev, 
					 DRM_STRUCTPROC *p);

/* Misc. IOCTL support (drm_ioctl.h) */
extern d_ioctl_t	DRM(irq_busid);
extern d_ioctl_t	DRM(getunique);
extern d_ioctl_t	DRM(setunique);
extern d_ioctl_t	DRM(getmap);
extern d_ioctl_t	DRM(getclient);
extern d_ioctl_t	DRM(getstats);

/* Context IOCTL support (drm_context.h) */
extern d_ioctl_t	DRM(resctx);
extern d_ioctl_t	DRM(addctx);
extern d_ioctl_t	DRM(modctx);
extern d_ioctl_t	DRM(getctx);
extern d_ioctl_t	DRM(switchctx);
extern d_ioctl_t	DRM(newctx);
extern d_ioctl_t	DRM(rmctx);
extern d_ioctl_t	DRM(setsareactx);
extern d_ioctl_t	DRM(getsareactx);

/* Drawable IOCTL support (drm_drawable.h) */
extern d_ioctl_t	DRM(adddraw);
extern d_ioctl_t	DRM(rmdraw);

/* Authentication IOCTL support (drm_auth.h) */
extern d_ioctl_t	DRM(getmagic);
extern d_ioctl_t	DRM(authmagic);

/* Locking IOCTL support (drm_lock.h) */
extern d_ioctl_t	DRM(block);
extern d_ioctl_t	DRM(unblock);
extern d_ioctl_t	DRM(finish);

/* Buffer management support (drm_bufs.h) */
extern d_ioctl_t	DRM(addmap);
extern d_ioctl_t	DRM(rmmap);
#if __HAVE_DMA
extern d_ioctl_t	DRM(addbufs_agp);
extern d_ioctl_t	DRM(addbufs_pci);
extern d_ioctl_t	DRM(addbufs_sg);
extern d_ioctl_t	DRM(addbufs);
extern d_ioctl_t	DRM(infobufs);
extern d_ioctl_t	DRM(markbufs);
extern d_ioctl_t	DRM(freebufs);
extern d_ioctl_t	DRM(mapbufs);
#endif

/* Memory management support (drm_memory.h) */
extern int		DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS;

/* DMA support (drm_dma.h) */
#if __HAVE_DMA
extern d_ioctl_t	DRM(control);
#endif
#if __HAVE_VBL_IRQ
extern d_ioctl_t	DRM(wait_vblank);
#endif

/* AGP/GART support (drm_agpsupport.h) */
#if __REALLY_HAVE_AGP
extern d_ioctl_t	DRM(agp_acquire);
extern d_ioctl_t	DRM(agp_release);
extern d_ioctl_t	DRM(agp_enable);
extern d_ioctl_t	DRM(agp_info);
extern d_ioctl_t	DRM(agp_alloc);
extern d_ioctl_t	DRM(agp_free);
extern d_ioctl_t	DRM(agp_unbind);
extern d_ioctl_t	DRM(agp_bind);
#endif

/* Scatter Gather Support (drm_scatter.h) */
#if __HAVE_SG
extern d_ioctl_t	DRM(sg_alloc);
extern d_ioctl_t	DRM(sg_free);
#endif

/* SysCtl Support (drm_sysctl.h) */
extern int		DRM(sysctl_init)(drm_device_t *dev);
extern int		DRM(sysctl_cleanup)(drm_device_t *dev);