xref: /freebsd/sys/dev/drm2/drm_os_freebsd.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
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 int64_t		timeval_to_ns(const struct timeval *tv);
308 struct timeval	ns_to_timeval(const int64_t nsec);
309 
310 #define	PAGE_ALIGN(addr) round_page(addr)
311 #define	page_to_phys(x) VM_PAGE_TO_PHYS(x)
312 #define	offset_in_page(x) ((x) & PAGE_MASK)
313 
314 #define	drm_get_device_from_kdev(_kdev)	(((struct drm_minor *)(_kdev)->si_drv1)->dev)
315 
316 #define DRM_IOC_VOID		IOC_VOID
317 #define DRM_IOC_READ		IOC_OUT
318 #define DRM_IOC_WRITE		IOC_IN
319 #define DRM_IOC_READWRITE	IOC_INOUT
320 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
321 
322 static inline long
323 __copy_to_user(void __user *to, const void *from, unsigned long n)
324 {
325 	return (copyout(from, to, n) != 0 ? n : 0);
326 }
327 #define	copy_to_user(to, from, n) __copy_to_user((to), (from), (n))
328 
329 static inline int
330 __put_user(size_t size, void *ptr, void *x)
331 {
332 
333 	size = copy_to_user(ptr, x, size);
334 
335 	return (size ? -EFAULT : size);
336 }
337 #define	put_user(x, ptr) __put_user(sizeof(*ptr), (ptr), &(x))
338 
339 static inline unsigned long
340 __copy_from_user(void *to, const void __user *from, unsigned long n)
341 {
342 	return ((copyin(__DECONST(void *, from), to, n) != 0 ? n : 0));
343 }
344 #define	copy_from_user(to, from, n) __copy_from_user((to), (from), (n))
345 
346 static inline int
347 __get_user(size_t size, const void *ptr, void *x)
348 {
349 
350 	size = copy_from_user(x, ptr, size);
351 
352 	return (size ? -EFAULT : size);
353 }
354 #define	get_user(x, ptr) __get_user(sizeof(*ptr), (ptr), &(x))
355 
356 static inline int
357 __copy_to_user_inatomic(void __user *to, const void *from, unsigned n)
358 {
359 
360 	return (copyout_nofault(from, to, n) != 0 ? n : 0);
361 }
362 #define	__copy_to_user_inatomic_nocache(to, from, n) \
363     __copy_to_user_inatomic((to), (from), (n))
364 
365 static inline unsigned long
366 __copy_from_user_inatomic(void *to, const void __user *from,
367     unsigned long n)
368 {
369 
370 	/*
371 	 * XXXKIB.  Equivalent Linux function is implemented using
372 	 * MOVNTI for aligned moves.  For unaligned head and tail,
373 	 * normal move is performed.  As such, it is not incorrect, if
374 	 * only somewhat slower, to use normal copyin.  All uses
375 	 * except shmem_pwrite_fast() have the destination mapped WC.
376 	 */
377 	return ((copyin_nofault(__DECONST(void *, from), to, n) != 0 ? n : 0));
378 }
379 #define	__copy_from_user_inatomic_nocache(to, from, n) \
380     __copy_from_user_inatomic((to), (from), (n))
381 
382 static inline int
383 fault_in_multipages_readable(const char __user *uaddr, int size)
384 {
385 	char c;
386 	int ret = 0;
387 	const char __user *end = uaddr + size - 1;
388 
389 	if (unlikely(size == 0))
390 		return ret;
391 
392 	while (uaddr <= end) {
393 		ret = -copyin(uaddr, &c, 1);
394 		if (ret != 0)
395 			return -EFAULT;
396 		uaddr += PAGE_SIZE;
397 	}
398 
399 	/* Check whether the range spilled into the next page. */
400 	if (((unsigned long)uaddr & ~PAGE_MASK) ==
401 			((unsigned long)end & ~PAGE_MASK)) {
402 		ret = -copyin(end, &c, 1);
403 	}
404 
405 	return ret;
406 }
407 
408 static inline int
409 fault_in_multipages_writeable(char __user *uaddr, int size)
410 {
411 	int ret = 0;
412 	char __user *end = uaddr + size - 1;
413 
414 	if (unlikely(size == 0))
415 		return ret;
416 
417 	/*
418 	 * Writing zeroes into userspace here is OK, because we know that if
419 	 * the zero gets there, we'll be overwriting it.
420 	 */
421 	while (uaddr <= end) {
422 		ret = subyte(uaddr, 0);
423 		if (ret != 0)
424 			return -EFAULT;
425 		uaddr += PAGE_SIZE;
426 	}
427 
428 	/* Check whether the range spilled into the next page. */
429 	if (((unsigned long)uaddr & ~PAGE_MASK) ==
430 			((unsigned long)end & ~PAGE_MASK))
431 		ret = subyte(end, 0);
432 
433 	return ret;
434 }
435 
436 enum __drm_capabilities {
437 	CAP_SYS_ADMIN
438 };
439 
440 static inline bool
441 capable(enum __drm_capabilities cap)
442 {
443 
444 	switch (cap) {
445 	case CAP_SYS_ADMIN:
446 		return DRM_SUSER(curthread);
447 	default:
448 		panic("%s: unhandled capability: %0x", __func__, cap);
449 		return (false);
450 	}
451 }
452 
453 #define	to_user_ptr(x)		((void *)(uintptr_t)(x))
454 #define	sigemptyset(set)	SIGEMPTYSET(set)
455 #define	sigaddset(set, sig)	SIGADDSET(set, sig)
456 
457 #define DRM_LOCK(dev)		sx_xlock(&(dev)->dev_struct_lock)
458 #define DRM_UNLOCK(dev) 	sx_xunlock(&(dev)->dev_struct_lock)
459 
460 extern unsigned long drm_linux_timer_hz_mask;
461 #define jiffies			ticks
462 #define	jiffies_to_msecs(x)	(((int64_t)(x)) * 1000 / hz)
463 #define	msecs_to_jiffies(x)	(((int64_t)(x)) * hz / 1000)
464 #define	timespec_to_jiffies(x)	(((x)->tv_sec * 1000000 + (x)->tv_nsec) * hz / 1000000)
465 #define	time_after(a,b)		((long)(b) - (long)(a) < 0)
466 #define	time_after_eq(a,b)	((long)(b) - (long)(a) <= 0)
467 #define	round_jiffies(j)	((unsigned long)(((j) + drm_linux_timer_hz_mask) & ~drm_linux_timer_hz_mask))
468 #define	round_jiffies_up(j)		round_jiffies(j) /* TODO */
469 #define	round_jiffies_up_relative(j)	round_jiffies_up(j) /* TODO */
470 
471 #define	getrawmonotonic(ts)	getnanouptime(ts)
472 
473 #define	wake_up(queue)				wakeup_one((void *)queue)
474 #define	wake_up_interruptible(queue)		wakeup_one((void *)queue)
475 #define	wake_up_all(queue)			wakeup((void *)queue)
476 #define	wake_up_interruptible_all(queue)	wakeup((void *)queue)
477 
478 struct completion {
479 	unsigned int done;
480 	struct mtx lock;
481 };
482 
483 #define	INIT_COMPLETION(c) ((c).done = 0);
484 
485 static inline void
486 init_completion(struct completion *c)
487 {
488 
489 	mtx_init(&c->lock, "drmcompl", NULL, MTX_DEF);
490 	c->done = 0;
491 }
492 
493 static inline void
494 free_completion(struct completion *c)
495 {
496 
497 	mtx_destroy(&c->lock);
498 }
499 
500 static inline void
501 complete_all(struct completion *c)
502 {
503 
504 	mtx_lock(&c->lock);
505 	c->done++;
506 	mtx_unlock(&c->lock);
507 	wakeup(c);
508 }
509 
510 static inline long
511 wait_for_completion_interruptible_timeout(struct completion *c,
512     unsigned long timeout)
513 {
514 	unsigned long start_jiffies, elapsed_jiffies;
515 	bool timeout_expired = false, awakened = false;
516 	long ret = timeout;
517 
518 	start_jiffies = ticks;
519 
520 	mtx_lock(&c->lock);
521 	while (c->done == 0 && !timeout_expired) {
522 		ret = -msleep(c, &c->lock, PCATCH, "drmwco", timeout);
523 		switch(ret) {
524 		case -EWOULDBLOCK:
525 			timeout_expired = true;
526 			ret = 0;
527 			break;
528 		case -EINTR:
529 		case -ERESTART:
530 			ret = -ERESTARTSYS;
531 			break;
532 		case 0:
533 			awakened = true;
534 			break;
535 		}
536 	}
537 	mtx_unlock(&c->lock);
538 
539 	if (awakened) {
540 		elapsed_jiffies = ticks - start_jiffies;
541 		ret = timeout > elapsed_jiffies ? timeout - elapsed_jiffies : 1;
542 	}
543 
544 	return (ret);
545 }
546 
547 MALLOC_DECLARE(DRM_MEM_DMA);
548 MALLOC_DECLARE(DRM_MEM_SAREA);
549 MALLOC_DECLARE(DRM_MEM_DRIVER);
550 MALLOC_DECLARE(DRM_MEM_MAGIC);
551 MALLOC_DECLARE(DRM_MEM_MINOR);
552 MALLOC_DECLARE(DRM_MEM_IOCTLS);
553 MALLOC_DECLARE(DRM_MEM_MAPS);
554 MALLOC_DECLARE(DRM_MEM_BUFS);
555 MALLOC_DECLARE(DRM_MEM_SEGS);
556 MALLOC_DECLARE(DRM_MEM_PAGES);
557 MALLOC_DECLARE(DRM_MEM_FILES);
558 MALLOC_DECLARE(DRM_MEM_QUEUES);
559 MALLOC_DECLARE(DRM_MEM_CMDS);
560 MALLOC_DECLARE(DRM_MEM_MAPPINGS);
561 MALLOC_DECLARE(DRM_MEM_BUFLISTS);
562 MALLOC_DECLARE(DRM_MEM_AGPLISTS);
563 MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
564 MALLOC_DECLARE(DRM_MEM_SGLISTS);
565 MALLOC_DECLARE(DRM_MEM_MM);
566 MALLOC_DECLARE(DRM_MEM_HASHTAB);
567 MALLOC_DECLARE(DRM_MEM_KMS);
568 MALLOC_DECLARE(DRM_MEM_VBLANK);
569 
570 #define	simple_strtol(a, b, c)			strtol((a), (b), (c))
571 
572 typedef struct drm_pci_id_list
573 {
574 	int vendor;
575 	int device;
576 	long driver_private;
577 	char *name;
578 } drm_pci_id_list_t;
579 
580 #ifdef __i386__
581 #define	CONFIG_X86	1
582 #endif
583 #ifdef __amd64__
584 #define	CONFIG_X86	1
585 #define	CONFIG_X86_64	1
586 #endif
587 #ifdef __ia64__
588 #define	CONFIG_IA64	1
589 #endif
590 
591 #if defined(__i386__) || defined(__amd64__)
592 #define	CONFIG_ACPI
593 #define	CONFIG_DRM_I915_KMS
594 #undef	CONFIG_INTEL_IOMMU
595 #endif
596 
597 #ifdef COMPAT_FREEBSD32
598 #define	CONFIG_COMPAT
599 #endif
600 
601 #ifndef __arm__
602 #define	CONFIG_AGP	1
603 #define	CONFIG_MTRR	1
604 #endif
605 
606 #define	CONFIG_FB	1
607 extern const char *fb_mode_option;
608 
609 #undef	CONFIG_DEBUG_FS
610 #undef	CONFIG_VGA_CONSOLE
611 
612 #define	EXPORT_SYMBOL(x)
613 #define	EXPORT_SYMBOL_GPL(x)
614 #define	MODULE_AUTHOR(author)
615 #define	MODULE_DESCRIPTION(desc)
616 #define	MODULE_LICENSE(license)
617 #define	MODULE_PARM_DESC(name, desc)
618 #define	MODULE_DEVICE_TABLE(name, list)
619 #define	module_param_named(name, var, type, perm)
620 
621 #define	printk		printf
622 #define	pr_err		DRM_ERROR
623 #define	pr_warn		DRM_WARNING
624 #define	pr_warn_once	DRM_WARNING
625 #define	KERN_DEBUG	""
626 
627 /* I2C compatibility. */
628 #define	I2C_M_RD	IIC_M_RD
629 #define	I2C_M_WR	IIC_M_WR
630 #define	I2C_M_NOSTART	IIC_M_NOSTART
631 
632 struct fb_info *	framebuffer_alloc(void);
633 void			framebuffer_release(struct fb_info *info);
634 
635 #define	console_lock()
636 #define	console_unlock()
637 #define	console_trylock()	true
638 
639 #define	PM_EVENT_SUSPEND	0x0002
640 #define	PM_EVENT_QUIESCE	0x0008
641 #define	PM_EVENT_PRETHAW	PM_EVENT_QUIESCE
642 
643 typedef struct pm_message {
644 	int event;
645 } pm_message_t;
646 
647 static inline int
648 pci_read_config_byte(device_t kdev, int where, u8 *val)
649 {
650 
651 	*val = (u8)pci_read_config(kdev, where, 1);
652 	return (0);
653 }
654 
655 static inline int
656 pci_write_config_byte(device_t kdev, int where, u8 val)
657 {
658 
659 	pci_write_config(kdev, where, val, 1);
660 	return (0);
661 }
662 
663 static inline int
664 pci_read_config_word(device_t kdev, int where, uint16_t *val)
665 {
666 
667 	*val = (uint16_t)pci_read_config(kdev, where, 2);
668 	return (0);
669 }
670 
671 static inline int
672 pci_write_config_word(device_t kdev, int where, uint16_t val)
673 {
674 
675 	pci_write_config(kdev, where, val, 2);
676 	return (0);
677 }
678 
679 static inline int
680 pci_read_config_dword(device_t kdev, int where, uint32_t *val)
681 {
682 
683 	*val = (uint32_t)pci_read_config(kdev, where, 4);
684 	return (0);
685 }
686 
687 static inline int
688 pci_write_config_dword(device_t kdev, int where, uint32_t val)
689 {
690 
691 	pci_write_config(kdev, where, val, 4);
692 	return (0);
693 }
694 
695 static inline void
696 on_each_cpu(void callback(void *data), void *data, int wait)
697 {
698 
699 	smp_rendezvous(NULL, callback, NULL, data);
700 }
701 
702 void	hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
703 	    int groupsize, char *linebuf, size_t linebuflen, bool ascii);
704 
705 #define KIB_NOTYET()							\
706 do {									\
707 	if (drm_debug && drm_notyet)					\
708 		printf("NOTYET: %s at %s:%d\n", __func__, __FILE__, __LINE__); \
709 } while (0)
710 
711 #endif /* _DRM_OS_FREEBSD_H_ */
712