summaryrefslogtreecommitdiffstats
path: root/drivers/acpi/acpica/acmacros.h
blob: 832b6198652e0540a606047c782f5a74b528b447 (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
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
/******************************************************************************
 *
 * Name: acmacros.h - C macros for the entire subsystem.
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2012, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#ifndef __ACMACROS_H__
#define __ACMACROS_H__

/*
 * Extract data using a pointer. Any more than a byte and we
 * get into potential aligment issues -- see the STORE macros below.
 * Use with care.
 */
#define ACPI_GET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
#define ACPI_GET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
#define ACPI_GET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
#define ACPI_GET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)
#define ACPI_SET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
#define ACPI_SET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
#define ACPI_SET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
#define ACPI_SET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)

/*
 * printf() format helpers
 */

/* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */

#define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)

#if ACPI_MACHINE_WIDTH == 64
#define ACPI_FORMAT_NATIVE_UINT(i)      ACPI_FORMAT_UINT64(i)
#else
#define ACPI_FORMAT_NATIVE_UINT(i)      0, (i)
#endif

/*
 * Macros for moving data around to/from buffers that are possibly unaligned.
 * If the hardware supports the transfer of unaligned data, just do the store.
 * Otherwise, we have to move one byte at a time.
 */
#ifdef ACPI_BIG_ENDIAN
/*
 * Macros for big-endian machines
 */

/* These macros reverse the bytes during the move, converting little-endian to big endian */

			  /* Big Endian      <==        Little Endian */
			  /*  Hi...Lo                     Lo...Hi     */
/* 16-bit source, 16/32/64 destination */

#define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
					   ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}

#define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d))=0;\
							   ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
							   ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}

#define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
									 ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
									 ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}

/* 32-bit source, 16/32/64 destination */

#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */

#define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}

#define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
										   ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
										   ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
										   ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
										   ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}

/* 64-bit source, 16/32/64 destination */

#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */

#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */

#define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
										 ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
										 ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
										 ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
										 ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
#else
/*
 * Macros for little-endian machines
 */

#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED

/* The hardware supports unaligned transfers, just do the little-endian move */

/* 16-bit source, 16/32/64 destination */

#define ACPI_MOVE_16_TO_16(d, s)        *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
#define ACPI_MOVE_16_TO_32(d, s)        *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
#define ACPI_MOVE_16_TO_64(d, s)        *(u64 *)(void *)(d) = *(u16 *)(void *)(s)

/* 32-bit source, 16/32/64 destination */

#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
#define ACPI_MOVE_32_TO_32(d, s)        *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
#define ACPI_MOVE_32_TO_64(d, s)        *(u64 *)(void *)(d) = *(u32 *)(void *)(s)

/* 64-bit source, 16/32/64 destination */

#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */
#define ACPI_MOVE_64_TO_64(d, s)        *(u64 *)(void *)(d) = *(u64 *)(void *)(s)

#else
/*
 * The hardware does not support unaligned transfers. We must move the
 * data one byte at a time. These macros work whether the source or
 * the destination (or both) is/are unaligned. (Little-endian move)
 */

/* 16-bit source, 16/32/64 destination */

#define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}

#define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
#define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}

/* 32-bit source, 16/32/64 destination */

#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */

#define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}

#define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}

/* 64-bit source, 16/32/64 destination */

#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */
#define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
										 ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
										 ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
										 ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
										 ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
#endif
#endif

/* Macros based on machine integer width */

#if ACPI_MACHINE_WIDTH == 32
#define ACPI_MOVE_SIZE_TO_16(d, s)       ACPI_MOVE_32_TO_16(d, s)

#elif ACPI_MACHINE_WIDTH == 64
#define ACPI_MOVE_SIZE_TO_16(d, s)       ACPI_MOVE_64_TO_16(d, s)

#else
#error unknown ACPI_MACHINE_WIDTH
#endif

/*
 * Fast power-of-two math macros for non-optimized compilers
 */
#define _ACPI_DIV(value, power_of2)      ((u32) ((value) >> (power_of2)))
#define _ACPI_MUL(value, power_of2)      ((u32) ((value) << (power_of2)))
#define _ACPI_MOD(value, divisor)        ((u32) ((value) & ((divisor) -1)))

#define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
#define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
#define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)

#define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
#define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
#define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)

#define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
#define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
#define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)

#define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
#define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
#define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)

#define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
#define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
#define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)

/*
 * Rounding macros (Power of two boundaries only)
 */
#define ACPI_ROUND_DOWN(value, boundary)     (((acpi_size)(value)) & \
						(~(((acpi_size) boundary)-1)))

#define ACPI_ROUND_UP(value, boundary)	     ((((acpi_size)(value)) + \
						(((acpi_size) boundary)-1)) & \
						(~(((acpi_size) boundary)-1)))

/* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */

#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(acpi_size))

#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(acpi_size))

#define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))

#define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)

/* Generic (non-power-of-two) rounding */

#define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))

#define ACPI_IS_MISALIGNED(value)	    (((acpi_size) value) & (sizeof(acpi_size)-1))

/*
 * Bitmask creation
 * Bit positions start at zero.
 * MASK_BITS_ABOVE creates a mask starting AT the position and above
 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
 */
#define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_UINT64_MAX) << ((u32) (position))))
#define ACPI_MASK_BITS_BELOW(position)      ((ACPI_UINT64_MAX) << ((u32) (position)))

/* Bitfields within ACPI registers */

#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask)      ((val << pos) & mask)
#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val)  reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)

#define ACPI_INSERT_BITS(target, mask, source)          target = ((target & (~(mask))) | (source & mask))

/*
 * An object of type struct acpi_namespace_node can appear in some contexts
 * where a pointer to an object of type union acpi_operand_object can also
 * appear. This macro is used to distinguish them.
 *
 * The "Descriptor" field is the first field in both structures.
 */
#define ACPI_GET_DESCRIPTOR_TYPE(d)     (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
#define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)

/*
 * Macros for the master AML opcode table
 */
#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
	{name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
#else
#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
	{(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
#endif

#define ARG_TYPE_WIDTH                  5
#define ARG_1(x)                        ((u32)(x))
#define ARG_2(x)                        ((u32)(x) << (1 * ARG_TYPE_WIDTH))
#define ARG_3(x)                        ((u32)(x) << (2 * ARG_TYPE_WIDTH))
#define ARG_4(x)                        ((u32)(x) << (3 * ARG_TYPE_WIDTH))
#define ARG_5(x)                        ((u32)(x) << (4 * ARG_TYPE_WIDTH))
#define ARG_6(x)                        ((u32)(x) << (5 * ARG_TYPE_WIDTH))

#define ARGI_LIST1(a)                   (ARG_1(a))
#define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
#define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
#define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
#define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
#define ARGI_LIST6(a, b, c, d, e, f)    (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))

#define ARGP_LIST1(a)                   (ARG_1(a))
#define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
#define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
#define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
#define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
#define ARGP_LIST6(a, b, c, d, e, f)    (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))

#define GET_CURRENT_ARG_TYPE(list)      (list & ((u32) 0x1F))
#define INCREMENT_ARG_LIST(list)        (list >>= ((u32) ARG_TYPE_WIDTH))

/*
 * Ascii error messages can be configured out
 */
#ifndef ACPI_NO_ERROR_MESSAGES

/*
 * Error reporting. Callers module and line number are inserted by AE_INFO,
 * the plist contains a set of parens to allow variable-length lists.
 * These macros are used for both the debug and non-debug versions of the code.
 */
#define ACPI_ERROR_NAMESPACE(s, e)      acpi_ut_namespace_error (AE_INFO, s, e);
#define ACPI_ERROR_METHOD(s, n, p, e)   acpi_ut_method_error (AE_INFO, s, n, p, e);
#define ACPI_WARN_PREDEFINED(plist)     acpi_ut_predefined_warning plist
#define ACPI_INFO_PREDEFINED(plist)     acpi_ut_predefined_info plist

#else

/* No error messages */

#define ACPI_ERROR_NAMESPACE(s, e)
#define ACPI_ERROR_METHOD(s, n, p, e)
#define ACPI_WARN_PREDEFINED(plist)
#define ACPI_INFO_PREDEFINED(plist)

#endif		/* ACPI_NO_ERROR_MESSAGES */

/*
 * Debug macros that are conditionally compiled
 */
#ifdef ACPI_DEBUG_OUTPUT

/*
 * Function entry tracing
 */
#ifdef CONFIG_ACPI_DEBUG_FUNC_TRACE

#define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
			  acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
#define ACPI_FUNCTION_TRACE_PTR(a, b)   ACPI_FUNCTION_NAME(a) \
					   acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS, (void *)b)
#define ACPI_FUNCTION_TRACE_U32(a, b)   ACPI_FUNCTION_NAME(a) \
							 acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS, (u32)b)
#define ACPI_FUNCTION_TRACE_STR(a, b)   ACPI_FUNCTION_NAME(a) \
									  acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS, (char *)b)

#define ACPI_FUNCTION_ENTRY()           acpi_ut_track_stack_ptr()

/*
 * Function exit tracing.
 * WARNING: These macros include a return statement. This is usually considered
 * bad form, but having a separate exit macro is very ugly and difficult to maintain.
 * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
 * so that "_AcpiFunctionName" is defined.
 *
 * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
 * about these constructs.
 */
#ifdef ACPI_USE_DO_WHILE_0
#define ACPI_DO_WHILE0(a)               do a while(0)
#else
#define ACPI_DO_WHILE0(a)               a
#endif

#define return_VOID                     ACPI_DO_WHILE0 ({ \
											acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
											return;})
/*
 * There are two versions of most of the return macros. The default version is
 * safer, since it avoids side-effects by guaranteeing that the argument will
 * not be evaluated twice.
 *
 * A less-safe version of the macros is provided for optional use if the
 * compiler uses excessive CPU stack (for example, this may happen in the
 * debug case if code optimzation is disabled.)
 */
#ifndef ACPI_SIMPLE_RETURN_MACROS

#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
											register acpi_status _s = (s); \
											acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, _s); \
											return (_s); })
#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
											register void *_s = (void *) (s); \
											acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \
											return (_s); })
#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
											register u64 _s = (s); \
											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \
											return (_s); })
#define return_UINT8(s)                 ACPI_DO_WHILE0 ({ \
											register u8 _s = (u8) (s); \
											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
											return (_s); })
#define return_UINT32(s)                ACPI_DO_WHILE0 ({ \
											register u32 _s = (u32) (s); \
											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
											return (_s); })
#else				/* Use original less-safe macros */

#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
											acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, (s)); \
											return((s)); })
#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
											acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \
											return((s)); })
#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) (s)); \
											return((s)); })
#define return_UINT8(s)                 return_VALUE(s)
#define return_UINT32(s)                return_VALUE(s)

#endif				/* ACPI_SIMPLE_RETURN_MACROS */

#else /* !CONFIG_ACPI_DEBUG_FUNC_TRACE */

#define ACPI_FUNCTION_TRACE(a)
#define ACPI_FUNCTION_TRACE_PTR(a,b)
#define ACPI_FUNCTION_TRACE_U32(a,b)
#define ACPI_FUNCTION_TRACE_STR(a,b)
#define ACPI_FUNCTION_EXIT
#define ACPI_FUNCTION_STATUS_EXIT(s)
#define ACPI_FUNCTION_VALUE_EXIT(s)
#define ACPI_FUNCTION_TRACE(a)
#define ACPI_FUNCTION_ENTRY()

#define return_VOID                     return
#define return_ACPI_STATUS(s)           return(s)
#define return_VALUE(s)                 return(s)
#define return_UINT8(s)                 return(s)
#define return_UINT32(s)                return(s)
#define return_PTR(s)                   return(s)

#endif /* CONFIG_ACPI_DEBUG_FUNC_TRACE */

/* Conditional execution */

#define ACPI_DEBUG_EXEC(a)              a
#define ACPI_NORMAL_EXEC(a)

#define ACPI_DEBUG_DEFINE(a)            a;
#define ACPI_DEBUG_ONLY_MEMBERS(a)      a;
#define _VERBOSE_STRUCTURES

/* Stack and buffer dumping */

#define ACPI_DUMP_STACK_ENTRY(a)        acpi_ex_dump_operand((a), 0)
#define ACPI_DUMP_OPERANDS(a, b, c)	acpi_ex_dump_operands(a, b, c)

#define ACPI_DUMP_ENTRY(a, b)           acpi_ns_dump_entry (a, b)
#define ACPI_DUMP_PATHNAME(a, b, c, d)  acpi_ns_dump_pathname(a, b, c, d)
#define ACPI_DUMP_RESOURCE_LIST(a)      acpi_rs_dump_resource_list(a)
#define ACPI_DUMP_BUFFER(a, b)          acpi_ut_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)

#else
/*
 * This is the non-debug case -- make everything go away,
 * leaving no executable debug code!
 */
#define ACPI_DEBUG_EXEC(a)
#define ACPI_NORMAL_EXEC(a)             a;

#define ACPI_DEBUG_DEFINE(a)		do { } while(0)
#define ACPI_DEBUG_ONLY_MEMBERS(a)	do { } while(0)
#define ACPI_FUNCTION_TRACE(a)		do { } while(0)
#define ACPI_FUNCTION_TRACE_PTR(a, b)	do { } while(0)
#define ACPI_FUNCTION_TRACE_U32(a, b)	do { } while(0)
#define ACPI_FUNCTION_TRACE_STR(a, b)	do { } while(0)
#define ACPI_FUNCTION_EXIT		do { } while(0)
#define ACPI_FUNCTION_STATUS_EXIT(s)	do { } while(0)
#define ACPI_FUNCTION_VALUE_EXIT(s)	do { } while(0)
#define ACPI_FUNCTION_ENTRY()		do { } while(0)
#define ACPI_DUMP_STACK_ENTRY(a)	do { } while(0)
#define ACPI_DUMP_OPERANDS(a, b, c)     do { } while(0)
#define ACPI_DUMP_ENTRY(a, b)		do { } while(0)
#define ACPI_DUMP_TABLES(a, b)		do { } while(0)
#define ACPI_DUMP_PATHNAME(a, b, c, d)	do { } while(0)
#define ACPI_DUMP_RESOURCE_LIST(a)	do { } while(0)
#define ACPI_DUMP_BUFFER(a, b)		do { } while(0)

#define return_VOID                     return
#define return_ACPI_STATUS(s)           return(s)
#define return_VALUE(s)                 return(s)
#define return_UINT8(s)                 return(s)
#define return_UINT32(s)                return(s)
#define return_PTR(s)                   return(s)

#endif				/* ACPI_DEBUG_OUTPUT */

#if (!ACPI_REDUCED_HARDWARE)
#define ACPI_HW_OPTIONAL_FUNCTION(addr)     addr
#else
#define ACPI_HW_OPTIONAL_FUNCTION(addr)     NULL
#endif

/*
 * Some code only gets executed when the debugger is built in.
 * Note that this is entirely independent of whether the
 * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
 */
#ifdef ACPI_DEBUGGER
#define ACPI_DEBUGGER_EXEC(a)           a
#else
#define ACPI_DEBUGGER_EXEC(a)
#endif

#ifdef ACPI_DEBUG_OUTPUT
/*
 * 1) Set name to blanks
 * 2) Copy the object name
 */
#define ACPI_ADD_OBJECT_NAME(a,b)       ACPI_MEMSET (a->common.name, ' ', sizeof (a->common.name));\
										ACPI_STRNCPY (a->common.name, acpi_gbl_ns_type_names[b], sizeof (a->common.name))
#else

#define ACPI_ADD_OBJECT_NAME(a,b)
#endif

/*
 * Memory allocation tracking (DEBUG ONLY)
 */
#define ACPI_MEM_PARAMETERS         _COMPONENT, _acpi_module_name, __LINE__

#ifndef ACPI_DBG_TRACK_ALLOCATIONS

/* Memory allocation */

#ifndef ACPI_ALLOCATE
#define ACPI_ALLOCATE(a)            acpi_ut_allocate((acpi_size)(a), ACPI_MEM_PARAMETERS)
#endif
#ifndef ACPI_ALLOCATE_ZEROED
#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed((acpi_size)(a), ACPI_MEM_PARAMETERS)
#endif
#ifndef ACPI_FREE
#define ACPI_FREE(a)                acpio_os_free(a)
#endif
#define ACPI_MEM_TRACKING(a)

#else

/* Memory allocation */

#define ACPI_ALLOCATE(a)            acpi_ut_allocate_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
#define ACPI_FREE(a)                acpi_ut_free_and_track(a, ACPI_MEM_PARAMETERS)
#define ACPI_MEM_TRACKING(a)        a

#endif				/* ACPI_DBG_TRACK_ALLOCATIONS */

/* Preemption point */
#ifndef ACPI_PREEMPTION_POINT
#define ACPI_PREEMPTION_POINT() /* no preemption */
#endif

#endif				/* ACMACROS_H */
OpenPOWER on IntegriCloud