xref: /freebsd/sys/dev/drm2/drm_os_freebsd.h (revision d0b2dbfa)
1 /**
2  * \file drm_os_freebsd.h
3  * OS abstraction macros.
4  */
5 
6 #include <sys/cdefs.h>
7 #ifndef _DRM_OS_FREEBSD_H_
8 #define	_DRM_OS_FREEBSD_H_
9 
10 #include <sys/fbio.h>
11 #include <sys/smp.h>
12 
13 #if _BYTE_ORDER == _BIG_ENDIAN
14 #define	__BIG_ENDIAN 4321
15 #else
16 #define	__LITTLE_ENDIAN 1234
17 #endif
18 
19 #ifdef __LP64__
20 #define	BITS_PER_LONG	64
21 #else
22 #define	BITS_PER_LONG	32
23 #endif
24 
25 #ifndef __user
26 #define	__user
27 #endif
28 #ifndef __iomem
29 #define	__iomem
30 #endif
31 #ifndef __always_unused
32 #define	__always_unused
33 #endif
34 #ifndef __must_check
35 #define	__must_check
36 #endif
37 #ifndef __force
38 #define	__force
39 #endif
40 #ifndef uninitialized_var
41 #define	uninitialized_var(x) x
42 #endif
43 
44 #define	cpu_to_le16(x)	htole16(x)
45 #define	le16_to_cpu(x)	le16toh(x)
46 #define	cpu_to_le32(x)	htole32(x)
47 #define	le32_to_cpu(x)	le32toh(x)
48 
49 #define	cpu_to_be16(x)	htobe16(x)
50 #define	be16_to_cpu(x)	be16toh(x)
51 #define	cpu_to_be32(x)	htobe32(x)
52 #define	be32_to_cpu(x)	be32toh(x)
53 #define	be32_to_cpup(x)	be32toh(*x)
54 
55 typedef vm_paddr_t dma_addr_t;
56 typedef vm_paddr_t resource_size_t;
57 #define	wait_queue_head_t atomic_t
58 
59 typedef uint64_t u64;
60 typedef uint32_t u32;
61 typedef uint16_t u16;
62 typedef uint8_t  u8;
63 typedef int64_t s64;
64 typedef int32_t s32;
65 typedef int16_t s16;
66 typedef int8_t  s8;
67 typedef uint16_t __le16;
68 typedef uint32_t __le32;
69 typedef uint64_t __le64;
70 typedef uint16_t __be16;
71 typedef uint32_t __be32;
72 typedef uint64_t __be64;
73 
74 #define	DRM_IRQ_ARGS		void *arg
75 typedef void			irqreturn_t;
76 #define	IRQ_HANDLED		/* nothing */
77 #define	IRQ_NONE		/* nothing */
78 
79 #define	__init
80 #define	__exit
81 
82 #define	BUILD_BUG_ON(x)		CTASSERT(!(x))
83 #define	BUILD_BUG_ON_NOT_POWER_OF_2(x)
84 
85 #ifndef WARN
86 #define WARN(condition, format, ...) ({				\
87 	int __ret_warn_on = !!(condition);			\
88 	if (unlikely(__ret_warn_on))				\
89 	DRM_ERROR(format, ##__VA_ARGS__);			\
90 	unlikely(__ret_warn_on);				\
91 })
92 #endif
93 #define	WARN_ONCE(condition, format, ...)			\
94 	WARN(condition, format, ##__VA_ARGS__)
95 #define	WARN_ON(cond)		WARN(cond, "WARN ON: " #cond)
96 #define	WARN_ON_SMP(cond)	WARN_ON(cond)
97 #define	BUG()			panic("BUG")
98 #define	BUG_ON(cond)		KASSERT(!(cond), ("BUG ON: " #cond " -> 0x%jx", (uintmax_t)(cond)))
99 #define	unlikely(x)            __builtin_expect(!!(x), 0)
100 #define	likely(x)              __builtin_expect(!!(x), 1)
101 #define	container_of(ptr, type, member) ({			\
102 	__typeof( ((type *)0)->member ) *__mptr = (ptr);	\
103 	(type *)( (char *)__mptr - offsetof(type,member) );})
104 
105 #define	KHZ2PICOS(a)	(1000000000UL/(a))
106 
107 #define ARRAY_SIZE(x)		(sizeof(x)/sizeof(x[0]))
108 
109 #define	HZ			hz
110 #define	DRM_HZ			hz
111 #define	DRM_CURRENTPID		curthread->td_proc->p_pid
112 #define	DRM_SUSER(p)		(priv_check(p, PRIV_DRIVER) == 0)
113 #define	udelay(usecs)		DELAY(usecs)
114 #define	mdelay(msecs)		do { int loops = (msecs);		\
115 				  while (loops--) DELAY(1000);		\
116 				} while (0)
117 #define	DRM_UDELAY(udelay)	DELAY(udelay)
118 #define	drm_msleep(x, msg)	pause((msg), ((int64_t)(x)) * hz / 1000)
119 #define	DRM_MSLEEP(msecs)	drm_msleep((msecs), "drm_msleep")
120 #define	get_seconds()		time_second
121 
122 #define ioread8(addr)		*(volatile uint8_t *)((char *)addr)
123 #define ioread16(addr)		*(volatile uint16_t *)((char *)addr)
124 #define ioread32(addr)		*(volatile uint32_t *)((char *)addr)
125 
126 #define iowrite8(data, addr)	*(volatile uint8_t *)((char *)addr) = data;
127 #define iowrite16(data, addr)	*(volatile uint16_t *)((char *)addr) = data;
128 #define iowrite32(data, addr)	*(volatile uint32_t *)((char *)addr) = data;
129 
130 #define	DRM_READ8(map, offset)						\
131 	*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) +		\
132 	    (vm_offset_t)(offset))
133 #define	DRM_READ16(map, offset)						\
134 	le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) +	\
135 	    (vm_offset_t)(offset)))
136 #define	DRM_READ32(map, offset)						\
137 	le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) +	\
138 	    (vm_offset_t)(offset)))
139 #define	DRM_READ64(map, offset)						\
140 	le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->handle) +	\
141 	    (vm_offset_t)(offset)))
142 #define	DRM_WRITE8(map, offset, val)					\
143 	*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) +		\
144 	    (vm_offset_t)(offset)) = val
145 #define	DRM_WRITE16(map, offset, val)					\
146 	*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) +		\
147 	    (vm_offset_t)(offset)) = htole16(val)
148 #define	DRM_WRITE32(map, offset, val)					\
149 	*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) +		\
150 	    (vm_offset_t)(offset)) = htole32(val)
151 #define	DRM_WRITE64(map, offset, val)					\
152 	*(volatile u_int64_t *)(((vm_offset_t)(map)->handle) +		\
153 	    (vm_offset_t)(offset)) = htole64(val)
154 
155 #if !defined(__arm__)
156 #if defined(__i386__) || defined(__amd64__) || defined(__powerpc__) || defined(__aarch64__)
157 #define DRM_MSG "This code is deprecated.  Install the graphics/drm-kmod pkg\n"
158 #else
159 #define DRM_MSG "This code is deprecated."
160 #endif
161 
162 #define DRM_OBSOLETE(dev)							\
163     do {									\
164 	device_printf(dev, "=======================================================\n"); \
165 	device_printf(dev, DRM_MSG);						\
166 	device_printf(dev, "=======================================================\n"); \
167 	gone_in_dev(dev, 13, "drm2 drivers");					\
168     } while (0)
169 #endif /* __arm__ */
170 
171 /* DRM_READMEMORYBARRIER() prevents reordering of reads.
172  * DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
173  * DRM_MEMORYBARRIER() prevents reordering of reads and writes.
174  */
175 #define	DRM_READMEMORYBARRIER()		rmb()
176 #define	DRM_WRITEMEMORYBARRIER()	wmb()
177 #define	DRM_MEMORYBARRIER()		mb()
178 #define	smp_rmb()			rmb()
179 #define	smp_wmb()			wmb()
180 #define	smp_mb__before_atomic_inc()	mb()
181 #define	smp_mb__after_atomic_inc()	mb()
182 #define	barrier()			__compiler_membar()
183 
184 #define	do_div(a, b)		((a) /= (b))
185 #define	div64_u64(a, b)		((a) / (b))
186 #define	lower_32_bits(n)	((u32)(n))
187 #define	upper_32_bits(n)	((u32)(((n) >> 16) >> 16))
188 
189 #define	__set_bit(n, s)		set_bit((n), (s))
190 #define	__clear_bit(n, s)	clear_bit((n), (s))
191 
192 #define min_t(type, x, y) ({			\
193 	type __min1 = (x);			\
194 	type __min2 = (y);			\
195 	__min1 < __min2 ? __min1 : __min2; })
196 
197 #define max_t(type, x, y) ({			\
198 	type __max1 = (x);			\
199 	type __max2 = (y);			\
200 	__max1 > __max2 ? __max1 : __max2; })
201 
202 #define	memset_io(a, b, c)	memset((a), (b), (c))
203 #define	memcpy_fromio(a, b, c)	memcpy((a), (b), (c))
204 #define	memcpy_toio(a, b, c)	memcpy((a), (b), (c))
205 
206 #define	VERIFY_READ	VM_PROT_READ
207 #define	VERIFY_WRITE	VM_PROT_WRITE
208 #define	access_ok(prot, p, l)	useracc((p), (l), (prot))
209 
210 /* XXXKIB what is the right code for the FreeBSD ? */
211 /* kib@ used ENXIO here -- dumbbell@ */
212 #define	EREMOTEIO	EIO
213 #define	ERESTARTSYS	512 /* Same value as Linux. */
214 
215 #define	KTR_DRM		KTR_DEV
216 #define	KTR_DRM_REG	KTR_SPARE3
217 
218 #define	DRM_AGP_KERN	struct agp_info
219 #define	DRM_AGP_MEM	void
220 
221 #define	PCI_VENDOR_ID_APPLE		0x106b
222 #define	PCI_VENDOR_ID_ASUSTEK		0x1043
223 #define	PCI_VENDOR_ID_ATI		0x1002
224 #define	PCI_VENDOR_ID_DELL		0x1028
225 #define	PCI_VENDOR_ID_HP		0x103c
226 #define	PCI_VENDOR_ID_IBM		0x1014
227 #define	PCI_VENDOR_ID_INTEL		0x8086
228 #define	PCI_VENDOR_ID_SERVERWORKS	0x1166
229 #define	PCI_VENDOR_ID_SONY		0x104d
230 #define	PCI_VENDOR_ID_VIA		0x1106
231 
232 #define DIV_ROUND_UP(n,d) 	(((n) + (d) - 1) / (d))
233 #define	DIV_ROUND_CLOSEST(n,d)	(((n) + (d) / 2) / (d))
234 #define	div_u64(n, d)		((n) / (d))
235 #define	hweight32(i)		bitcount32(i)
236 
237 static inline unsigned long
238 roundup_pow_of_two(unsigned long x)
239 {
240 
241 	return (1UL << flsl(x - 1));
242 }
243 
244 /**
245  * ror32 - rotate a 32-bit value right
246  * @word: value to rotate
247  * @shift: bits to roll
248  *
249  * Source: include/linux/bitops.h
250  */
251 static inline uint32_t
252 ror32(uint32_t word, unsigned int shift)
253 {
254 
255 	return (word >> shift) | (word << (32 - shift));
256 }
257 
258 #define	IS_ALIGNED(x, y)	(((x) & ((y) - 1)) == 0)
259 #define	round_down(x, y)	rounddown2((x), (y))
260 #define	round_up(x, y)		roundup2((x), (y))
261 #define	get_unaligned(ptr)                                              \
262 	({ __typeof__(*(ptr)) __tmp;                                    \
263 	  memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
264 
265 #if _BYTE_ORDER == _LITTLE_ENDIAN
266 /* Taken from linux/include/linux/unaligned/le_struct.h. */
267 struct __una_u32 { u32 x; } __packed;
268 
269 static inline u32
270 __get_unaligned_cpu32(const void *p)
271 {
272 	const struct __una_u32 *ptr = (const struct __una_u32 *)p;
273 
274 	return (ptr->x);
275 }
276 
277 static inline u32
278 get_unaligned_le32(const void *p)
279 {
280 
281 	return (__get_unaligned_cpu32((const u8 *)p));
282 }
283 #else
284 /* Taken from linux/include/linux/unaligned/le_byteshift.h. */
285 static inline u32
286 __get_unaligned_le32(const u8 *p)
287 {
288 
289 	return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
290 }
291 
292 static inline u32
293 get_unaligned_le32(const void *p)
294 {
295 
296 	return (__get_unaligned_le32((const u8 *)p));
297 }
298 #endif
299 
300 static inline unsigned long
301 ilog2(unsigned long x)
302 {
303 
304 	return (flsl(x) - 1);
305 }
306 
307 static inline int64_t
308 abs64(int64_t x)
309 {
310 
311 	return (x < 0 ? -x : x);
312 }
313 
314 int64_t		timeval_to_ns(const struct timeval *tv);
315 struct timeval	ns_to_timeval(const int64_t nsec);
316 
317 #define	PAGE_ALIGN(addr) round_page(addr)
318 #define	page_to_phys(x) VM_PAGE_TO_PHYS(x)
319 #define	offset_in_page(x) ((x) & PAGE_MASK)
320 
321 #define	drm_get_device_from_kdev(_kdev)	(((struct drm_minor *)(_kdev)->si_drv1)->dev)
322 
323 #define DRM_IOC_VOID		IOC_VOID
324 #define DRM_IOC_READ		IOC_OUT
325 #define DRM_IOC_WRITE		IOC_IN
326 #define DRM_IOC_READWRITE	IOC_INOUT
327 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
328 
329 static inline long
330 __copy_to_user(void __user *to, const void *from, unsigned long n)
331 {
332 	return (copyout(from, to, n) != 0 ? n : 0);
333 }
334 #define	copy_to_user(to, from, n) __copy_to_user((to), (from), (n))
335 
336 static inline int
337 __put_user(size_t size, void *ptr, void *x)
338 {
339 
340 	size = copy_to_user(ptr, x, size);
341 
342 	return (size ? -EFAULT : size);
343 }
344 #define	put_user(x, ptr) __put_user(sizeof(*ptr), (ptr), &(x))
345 
346 static inline unsigned long
347 __copy_from_user(void *to, const void __user *from, unsigned long n)
348 {
349 	return ((copyin(__DECONST(void *, from), to, n) != 0 ? n : 0));
350 }
351 #define	copy_from_user(to, from, n) __copy_from_user((to), (from), (n))
352 
353 static inline int
354 __get_user(size_t size, const void *ptr, void *x)
355 {
356 
357 	size = copy_from_user(x, ptr, size);
358 
359 	return (size ? -EFAULT : size);
360 }
361 #define	get_user(x, ptr) __get_user(sizeof(*ptr), (ptr), &(x))
362 
363 static inline int
364 __copy_to_user_inatomic(void __user *to, const void *from, unsigned n)
365 {
366 
367 	return (copyout_nofault(from, to, n) != 0 ? n : 0);
368 }
369 #define	__copy_to_user_inatomic_nocache(to, from, n) \
370     __copy_to_user_inatomic((to), (from), (n))
371 
372 static inline unsigned long
373 __copy_from_user_inatomic(void *to, const void __user *from,
374     unsigned long n)
375 {
376 
377 	/*
378 	 * XXXKIB.  Equivalent Linux function is implemented using
379 	 * MOVNTI for aligned moves.  For unaligned head and tail,
380 	 * normal move is performed.  As such, it is not incorrect, if
381 	 * only somewhat slower, to use normal copyin.  All uses
382 	 * except shmem_pwrite_fast() have the destination mapped WC.
383 	 */
384 	return ((copyin_nofault(__DECONST(void *, from), to, n) != 0 ? n : 0));
385 }
386 #define	__copy_from_user_inatomic_nocache(to, from, n) \
387     __copy_from_user_inatomic((to), (from), (n))
388 
389 static inline int
390 fault_in_multipages_readable(const char __user *uaddr, int size)
391 {
392 	char c;
393 	int ret = 0;
394 	const char __user *end = uaddr + size - 1;
395 
396 	if (unlikely(size == 0))
397 		return ret;
398 
399 	while (uaddr <= end) {
400 		ret = -copyin(uaddr, &c, 1);
401 		if (ret != 0)
402 			return -EFAULT;
403 		uaddr += PAGE_SIZE;
404 	}
405 
406 	/* Check whether the range spilled into the next page. */
407 	if (((unsigned long)uaddr & ~PAGE_MASK) ==
408 			((unsigned long)end & ~PAGE_MASK)) {
409 		ret = -copyin(end, &c, 1);
410 	}
411 
412 	return ret;
413 }
414 
415 static inline int
416 fault_in_multipages_writeable(char __user *uaddr, int size)
417 {
418 	int ret = 0;
419 	char __user *end = uaddr + size - 1;
420 
421 	if (unlikely(size == 0))
422 		return ret;
423 
424 	/*
425 	 * Writing zeroes into userspace here is OK, because we know that if
426 	 * the zero gets there, we'll be overwriting it.
427 	 */
428 	while (uaddr <= end) {
429 		ret = subyte(uaddr, 0);
430 		if (ret != 0)
431 			return -EFAULT;
432 		uaddr += PAGE_SIZE;
433 	}
434 
435 	/* Check whether the range spilled into the next page. */
436 	if (((unsigned long)uaddr & ~PAGE_MASK) ==
437 			((unsigned long)end & ~PAGE_MASK))
438 		ret = subyte(end, 0);
439 
440 	return ret;
441 }
442 
443 enum __drm_capabilities {
444 	CAP_SYS_ADMIN
445 };
446 
447 static inline bool
448 capable(enum __drm_capabilities cap)
449 {
450 
451 	switch (cap) {
452 	case CAP_SYS_ADMIN:
453 		return DRM_SUSER(curthread);
454 	default:
455 		panic("%s: unhandled capability: %0x", __func__, cap);
456 		return (false);
457 	}
458 }
459 
460 #define	to_user_ptr(x)		((void *)(uintptr_t)(x))
461 #define	sigemptyset(set)	SIGEMPTYSET(set)
462 #define	sigaddset(set, sig)	SIGADDSET(set, sig)
463 
464 #define DRM_LOCK(dev)		sx_xlock(&(dev)->dev_struct_lock)
465 #define DRM_UNLOCK(dev) 	sx_xunlock(&(dev)->dev_struct_lock)
466 
467 extern unsigned long drm_linux_timer_hz_mask;
468 #define jiffies			ticks
469 #define	jiffies_to_msecs(x)	(((int64_t)(x)) * 1000 / hz)
470 #define	msecs_to_jiffies(x)	(((int64_t)(x)) * hz / 1000)
471 #define	timespec_to_jiffies(x)	(((x)->tv_sec * 1000000 + (x)->tv_nsec) * hz / 1000000)
472 #define	time_after(a,b)		((long)(b) - (long)(a) < 0)
473 #define	time_after_eq(a,b)	((long)(b) - (long)(a) <= 0)
474 #define	round_jiffies(j)	((unsigned long)(((j) + drm_linux_timer_hz_mask) & ~drm_linux_timer_hz_mask))
475 #define	round_jiffies_up(j)		round_jiffies(j) /* TODO */
476 #define	round_jiffies_up_relative(j)	round_jiffies_up(j) /* TODO */
477 
478 #define	getrawmonotonic(ts)	getnanouptime(ts)
479 
480 #define	wake_up(queue)				wakeup_one((void *)queue)
481 #define	wake_up_interruptible(queue)		wakeup_one((void *)queue)
482 #define	wake_up_all(queue)			wakeup((void *)queue)
483 #define	wake_up_interruptible_all(queue)	wakeup((void *)queue)
484 
485 struct completion {
486 	unsigned int done;
487 	struct mtx lock;
488 };
489 
490 #define	INIT_COMPLETION(c) ((c).done = 0);
491 
492 static inline void
493 init_completion(struct completion *c)
494 {
495 
496 	mtx_init(&c->lock, "drmcompl", NULL, MTX_DEF);
497 	c->done = 0;
498 }
499 
500 static inline void
501 free_completion(struct completion *c)
502 {
503 
504 	mtx_destroy(&c->lock);
505 }
506 
507 static inline void
508 complete_all(struct completion *c)
509 {
510 
511 	mtx_lock(&c->lock);
512 	c->done++;
513 	mtx_unlock(&c->lock);
514 	wakeup(c);
515 }
516 
517 static inline long
518 wait_for_completion_interruptible_timeout(struct completion *c,
519     unsigned long timeout)
520 {
521 	unsigned long start_jiffies, elapsed_jiffies;
522 	bool timeout_expired = false, awakened = false;
523 	long ret = timeout;
524 
525 	start_jiffies = ticks;
526 
527 	mtx_lock(&c->lock);
528 	while (c->done == 0 && !timeout_expired) {
529 		ret = -msleep(c, &c->lock, PCATCH, "drmwco", timeout);
530 		switch(ret) {
531 		case -EWOULDBLOCK:
532 			timeout_expired = true;
533 			ret = 0;
534 			break;
535 		case -EINTR:
536 		case -ERESTART:
537 			ret = -ERESTARTSYS;
538 			break;
539 		case 0:
540 			awakened = true;
541 			break;
542 		}
543 	}
544 	mtx_unlock(&c->lock);
545 
546 	if (awakened) {
547 		elapsed_jiffies = ticks - start_jiffies;
548 		ret = timeout > elapsed_jiffies ? timeout - elapsed_jiffies : 1;
549 	}
550 
551 	return (ret);
552 }
553 
554 MALLOC_DECLARE(DRM_MEM_DMA);
555 MALLOC_DECLARE(DRM_MEM_SAREA);
556 MALLOC_DECLARE(DRM_MEM_DRIVER);
557 MALLOC_DECLARE(DRM_MEM_MAGIC);
558 MALLOC_DECLARE(DRM_MEM_MINOR);
559 MALLOC_DECLARE(DRM_MEM_IOCTLS);
560 MALLOC_DECLARE(DRM_MEM_MAPS);
561 MALLOC_DECLARE(DRM_MEM_BUFS);
562 MALLOC_DECLARE(DRM_MEM_SEGS);
563 MALLOC_DECLARE(DRM_MEM_PAGES);
564 MALLOC_DECLARE(DRM_MEM_FILES);
565 MALLOC_DECLARE(DRM_MEM_QUEUES);
566 MALLOC_DECLARE(DRM_MEM_CMDS);
567 MALLOC_DECLARE(DRM_MEM_MAPPINGS);
568 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
569 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
570 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
571 MALLOC_DECLARE(DRM_MEM_SGLISTS);
572 MALLOC_DECLARE(DRM_MEM_MM);
573 MALLOC_DECLARE(DRM_MEM_HASHTAB);
574 MALLOC_DECLARE(DRM_MEM_KMS);
575 MALLOC_DECLARE(DRM_MEM_VBLANK);
576 
577 #define	simple_strtol(a, b, c)			strtol((a), (b), (c))
578 
579 typedef struct drm_pci_id_list
580 {
581 	int vendor;
582 	int device;
583 	long driver_private;
584 	char *name;
585 } drm_pci_id_list_t;
586 
587 #ifdef __i386__
588 #define	CONFIG_X86	1
589 #endif
590 #ifdef __amd64__
591 #define	CONFIG_X86	1
592 #define	CONFIG_X86_64	1
593 #endif
594 #ifdef __ia64__
595 #define	CONFIG_IA64	1
596 #endif
597 
598 #if defined(__i386__) || defined(__amd64__)
599 #define	CONFIG_ACPI
600 #define	CONFIG_DRM_I915_KMS
601 #undef	CONFIG_INTEL_IOMMU
602 #endif
603 
604 #ifdef COMPAT_FREEBSD32
605 #define	CONFIG_COMPAT
606 #endif
607 
608 #ifndef __arm__
609 #define	CONFIG_AGP	1
610 #define	CONFIG_MTRR	1
611 #endif
612 
613 #define	CONFIG_FB	1
614 extern const char *fb_mode_option;
615 
616 #undef	CONFIG_DEBUG_FS
617 #undef	CONFIG_VGA_CONSOLE
618 
619 #define	EXPORT_SYMBOL(x)
620 #define	EXPORT_SYMBOL_GPL(x)
621 #define	MODULE_AUTHOR(author)
622 #define	MODULE_DESCRIPTION(desc)
623 #define	MODULE_LICENSE(license)
624 #define	MODULE_PARM_DESC(name, desc)
625 #define	MODULE_DEVICE_TABLE(name, list)
626 #define	module_param_named(name, var, type, perm)
627 
628 #define	printk		printf
629 #define	pr_err		DRM_ERROR
630 #define	pr_warn		DRM_WARNING
631 #define	pr_warn_once	DRM_WARNING
632 #define	KERN_DEBUG	""
633 
634 /* I2C compatibility. */
635 #define	I2C_M_RD	IIC_M_RD
636 #define	I2C_M_WR	IIC_M_WR
637 #define	I2C_M_NOSTART	IIC_M_NOSTART
638 
639 struct fb_info *	framebuffer_alloc(void);
640 void			framebuffer_release(struct fb_info *info);
641 
642 #define	console_lock()
643 #define	console_unlock()
644 #define	console_trylock()	true
645 
646 #define	PM_EVENT_SUSPEND	0x0002
647 #define	PM_EVENT_QUIESCE	0x0008
648 #define	PM_EVENT_PRETHAW	PM_EVENT_QUIESCE
649 
650 typedef struct pm_message {
651 	int event;
652 } pm_message_t;
653 
654 static inline int
655 pci_read_config_byte(device_t kdev, int where, u8 *val)
656 {
657 
658 	*val = (u8)pci_read_config(kdev, where, 1);
659 	return (0);
660 }
661 
662 static inline int
663 pci_write_config_byte(device_t kdev, int where, u8 val)
664 {
665 
666 	pci_write_config(kdev, where, val, 1);
667 	return (0);
668 }
669 
670 static inline int
671 pci_read_config_word(device_t kdev, int where, uint16_t *val)
672 {
673 
674 	*val = (uint16_t)pci_read_config(kdev, where, 2);
675 	return (0);
676 }
677 
678 static inline int
679 pci_write_config_word(device_t kdev, int where, uint16_t val)
680 {
681 
682 	pci_write_config(kdev, where, val, 2);
683 	return (0);
684 }
685 
686 static inline int
687 pci_read_config_dword(device_t kdev, int where, uint32_t *val)
688 {
689 
690 	*val = (uint32_t)pci_read_config(kdev, where, 4);
691 	return (0);
692 }
693 
694 static inline int
695 pci_write_config_dword(device_t kdev, int where, uint32_t val)
696 {
697 
698 	pci_write_config(kdev, where, val, 4);
699 	return (0);
700 }
701 
702 static inline void
703 on_each_cpu(void callback(void *data), void *data, int wait)
704 {
705 
706 	smp_rendezvous(NULL, callback, NULL, data);
707 }
708 
709 void	hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
710 	    int groupsize, char *linebuf, size_t linebuflen, bool ascii);
711 
712 #define KIB_NOTYET()							\
713 do {									\
714 	if (drm_debug && drm_notyet)					\
715 		printf("NOTYET: %s at %s:%d\n", __func__, __FILE__, __LINE__); \
716 } while (0)
717 
718 #endif /* _DRM_OS_FREEBSD_H_ */
719