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Merge branch 'acpidump' into acpica
[deliverable/linux.git] / drivers / acpi / acpica / acmacros.h
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1/******************************************************************************
2 *
3 * Name: acmacros.h - C macros for the entire subsystem.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2012, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACMACROS_H__
45#define __ACMACROS_H__
46
47/*
48 * Extract data using a pointer. Any more than a byte and we
49 * get into potential aligment issues -- see the STORE macros below.
50 * Use with care.
51 */
52#define ACPI_GET8(ptr) *ACPI_CAST_PTR (u8, ptr)
53#define ACPI_GET16(ptr) *ACPI_CAST_PTR (u16, ptr)
54#define ACPI_GET32(ptr) *ACPI_CAST_PTR (u32, ptr)
55#define ACPI_GET64(ptr) *ACPI_CAST_PTR (u64, ptr)
56#define ACPI_SET8(ptr) *ACPI_CAST_PTR (u8, ptr)
57#define ACPI_SET16(ptr) *ACPI_CAST_PTR (u16, ptr)
58#define ACPI_SET32(ptr) *ACPI_CAST_PTR (u32, ptr)
59#define ACPI_SET64(ptr) *ACPI_CAST_PTR (u64, ptr)
60
61/*
62 * printf() format helpers
63 */
64
65/* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */
66
67#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)
68
69#if ACPI_MACHINE_WIDTH == 64
70#define ACPI_FORMAT_NATIVE_UINT(i) ACPI_FORMAT_UINT64(i)
71#else
72#define ACPI_FORMAT_NATIVE_UINT(i) 0, (i)
73#endif
74
75/*
76 * Macros for moving data around to/from buffers that are possibly unaligned.
77 * If the hardware supports the transfer of unaligned data, just do the store.
78 * Otherwise, we have to move one byte at a time.
79 */
80#ifdef ACPI_BIG_ENDIAN
81/*
82 * Macros for big-endian machines
83 */
84
85/* These macros reverse the bytes during the move, converting little-endian to big endian */
86
87 /* Big Endian <== Little Endian */
88 /* Hi...Lo Lo...Hi */
89/* 16-bit source, 16/32/64 destination */
90
91#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
92 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
93
94#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d))=0;\
95 ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
96 ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
97
98#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
99 ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
100 ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
101
102/* 32-bit source, 16/32/64 destination */
103
104#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
105
106#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
107 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
108 (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
109 (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
110
111#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
112 ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
113 ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
114 ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
115 ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
116
117/* 64-bit source, 16/32/64 destination */
118
119#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
120
121#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
122
123#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
124 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
125 (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
126 (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
127 (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
128 (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
129 (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
130 (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
131#else
132/*
133 * Macros for little-endian machines
134 */
135
136#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
137
138/* The hardware supports unaligned transfers, just do the little-endian move */
139
140/* 16-bit source, 16/32/64 destination */
141
142#define ACPI_MOVE_16_TO_16(d, s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
143#define ACPI_MOVE_16_TO_32(d, s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
144#define ACPI_MOVE_16_TO_64(d, s) *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
145
146/* 32-bit source, 16/32/64 destination */
147
148#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
149#define ACPI_MOVE_32_TO_32(d, s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
150#define ACPI_MOVE_32_TO_64(d, s) *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
151
152/* 64-bit source, 16/32/64 destination */
153
154#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
155#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
156#define ACPI_MOVE_64_TO_64(d, s) *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
157
158#else
159/*
160 * The hardware does not support unaligned transfers. We must move the
161 * data one byte at a time. These macros work whether the source or
162 * the destination (or both) is/are unaligned. (Little-endian move)
163 */
164
165/* 16-bit source, 16/32/64 destination */
166
167#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
168 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
169
170#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
171#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
172
173/* 32-bit source, 16/32/64 destination */
174
175#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
176
177#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
178 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
179 (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
180 (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
181
182#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
183
184/* 64-bit source, 16/32/64 destination */
185
186#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
187#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
188#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
189 (( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
190 (( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
191 (( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
192 (( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
193 (( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
194 (( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
195 (( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
196#endif
197#endif
198
199/* Macros based on machine integer width */
200
201#if ACPI_MACHINE_WIDTH == 32
202#define ACPI_MOVE_SIZE_TO_16(d, s) ACPI_MOVE_32_TO_16(d, s)
203
204#elif ACPI_MACHINE_WIDTH == 64
205#define ACPI_MOVE_SIZE_TO_16(d, s) ACPI_MOVE_64_TO_16(d, s)
206
207#else
208#error unknown ACPI_MACHINE_WIDTH
209#endif
210
211/*
212 * Fast power-of-two math macros for non-optimized compilers
213 */
214#define _ACPI_DIV(value, power_of2) ((u32) ((value) >> (power_of2)))
215#define _ACPI_MUL(value, power_of2) ((u32) ((value) << (power_of2)))
216#define _ACPI_MOD(value, divisor) ((u32) ((value) & ((divisor) -1)))
217
218#define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
219#define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
220#define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
221
222#define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
223#define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
224#define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
225
226#define ACPI_DIV_8(a) _ACPI_DIV(a, 3)
227#define ACPI_MUL_8(a) _ACPI_MUL(a, 3)
228#define ACPI_MOD_8(a) _ACPI_MOD(a, 8)
229
230#define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
231#define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
232#define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
233
234#define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
235#define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
236#define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
237
238/*
239 * Rounding macros (Power of two boundaries only)
240 */
241#define ACPI_ROUND_DOWN(value, boundary) (((acpi_size)(value)) & \
242 (~(((acpi_size) boundary)-1)))
243
244#define ACPI_ROUND_UP(value, boundary) ((((acpi_size)(value)) + \
245 (((acpi_size) boundary)-1)) & \
246 (~(((acpi_size) boundary)-1)))
247
248/* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */
249
250#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
251#define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8)
252#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(acpi_size))
253
254#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
255#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
256#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(acpi_size))
257
258#define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
259#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
260
261#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
262
263/* Generic (non-power-of-two) rounding */
264
265#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
266
267#define ACPI_IS_MISALIGNED(value) (((acpi_size) value) & (sizeof(acpi_size)-1))
268
269/*
270 * Bitmask creation
271 * Bit positions start at zero.
272 * MASK_BITS_ABOVE creates a mask starting AT the position and above
273 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
274 */
275#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position))))
276#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position)))
277
278/* Bitfields within ACPI registers */
279
280#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
281 ((val << pos) & mask)
282
283#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
284 reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
285
286#define ACPI_INSERT_BITS(target, mask, source) \
287 target = ((target & (~(mask))) | (source & mask))
288
289/* Generic bitfield macros and masks */
290
291#define ACPI_GET_BITS(source_ptr, position, mask) \
292 ((*source_ptr >> position) & mask)
293
294#define ACPI_SET_BITS(target_ptr, position, mask, value) \
295 (*target_ptr |= ((value & mask) << position))
296
297#define ACPI_1BIT_MASK 0x00000001
298#define ACPI_2BIT_MASK 0x00000003
299#define ACPI_3BIT_MASK 0x00000007
300#define ACPI_4BIT_MASK 0x0000000F
301#define ACPI_5BIT_MASK 0x0000001F
302#define ACPI_6BIT_MASK 0x0000003F
303#define ACPI_7BIT_MASK 0x0000007F
304#define ACPI_8BIT_MASK 0x000000FF
305#define ACPI_16BIT_MASK 0x0000FFFF
306#define ACPI_24BIT_MASK 0x00FFFFFF
307
308/*
309 * An object of type struct acpi_namespace_node can appear in some contexts
310 * where a pointer to an object of type union acpi_operand_object can also
311 * appear. This macro is used to distinguish them.
312 *
313 * The "Descriptor" field is the first field in both structures.
314 */
315#define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
316#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
317
318/*
319 * Macros for the master AML opcode table
320 */
321#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
322#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
323 {name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
324#else
325#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
326 {(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
327#endif
328
329#define ARG_TYPE_WIDTH 5
330#define ARG_1(x) ((u32)(x))
331#define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH))
332#define ARG_3(x) ((u32)(x) << (2 * ARG_TYPE_WIDTH))
333#define ARG_4(x) ((u32)(x) << (3 * ARG_TYPE_WIDTH))
334#define ARG_5(x) ((u32)(x) << (4 * ARG_TYPE_WIDTH))
335#define ARG_6(x) ((u32)(x) << (5 * ARG_TYPE_WIDTH))
336
337#define ARGI_LIST1(a) (ARG_1(a))
338#define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a))
339#define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
340#define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
341#define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
342#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))
343
344#define ARGP_LIST1(a) (ARG_1(a))
345#define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b))
346#define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
347#define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
348#define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
349#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))
350
351#define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F))
352#define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH))
353
354/*
355 * Ascii error messages can be configured out
356 */
357#ifndef ACPI_NO_ERROR_MESSAGES
358
359/*
360 * Error reporting. Callers module and line number are inserted by AE_INFO,
361 * the plist contains a set of parens to allow variable-length lists.
362 * These macros are used for both the debug and non-debug versions of the code.
363 */
364#define ACPI_ERROR_NAMESPACE(s, e) acpi_ut_namespace_error (AE_INFO, s, e);
365#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ut_method_error (AE_INFO, s, n, p, e);
366#define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist
367#define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist
368
369#else
370
371/* No error messages */
372
373#define ACPI_ERROR_NAMESPACE(s, e)
374#define ACPI_ERROR_METHOD(s, n, p, e)
375#define ACPI_WARN_PREDEFINED(plist)
376#define ACPI_INFO_PREDEFINED(plist)
377
378#endif /* ACPI_NO_ERROR_MESSAGES */
379
380/*
381 * Debug macros that are conditionally compiled
382 */
383#ifdef ACPI_DEBUG_OUTPUT
384
385/*
386 * Function entry tracing
387 */
388#ifdef CONFIG_ACPI_DEBUG_FUNC_TRACE
389
390#define ACPI_FUNCTION_TRACE(a) ACPI_FUNCTION_NAME(a) \
391 acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
392#define ACPI_FUNCTION_TRACE_PTR(a, b) ACPI_FUNCTION_NAME(a) \
393 acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS, (void *)b)
394#define ACPI_FUNCTION_TRACE_U32(a, b) ACPI_FUNCTION_NAME(a) \
395 acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS, (u32)b)
396#define ACPI_FUNCTION_TRACE_STR(a, b) ACPI_FUNCTION_NAME(a) \
397 acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS, (char *)b)
398
399#define ACPI_FUNCTION_ENTRY() acpi_ut_track_stack_ptr()
400
401/*
402 * Function exit tracing.
403 * WARNING: These macros include a return statement. This is usually considered
404 * bad form, but having a separate exit macro is very ugly and difficult to maintain.
405 * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
406 * so that "_AcpiFunctionName" is defined.
407 *
408 * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
409 * about these constructs.
410 */
411#ifdef ACPI_USE_DO_WHILE_0
412#define ACPI_DO_WHILE0(a) do a while(0)
413#else
414#define ACPI_DO_WHILE0(a) a
415#endif
416
417#define return_VOID ACPI_DO_WHILE0 ({ \
418 acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
419 return;})
420/*
421 * There are two versions of most of the return macros. The default version is
422 * safer, since it avoids side-effects by guaranteeing that the argument will
423 * not be evaluated twice.
424 *
425 * A less-safe version of the macros is provided for optional use if the
426 * compiler uses excessive CPU stack (for example, this may happen in the
427 * debug case if code optimzation is disabled.)
428 */
429#ifndef ACPI_SIMPLE_RETURN_MACROS
430
431#define return_ACPI_STATUS(s) ACPI_DO_WHILE0 ({ \
432 register acpi_status _s = (s); \
433 acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, _s); \
434 return (_s); })
435#define return_PTR(s) ACPI_DO_WHILE0 ({ \
436 register void *_s = (void *) (s); \
437 acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \
438 return (_s); })
439#define return_VALUE(s) ACPI_DO_WHILE0 ({ \
440 register u64 _s = (s); \
441 acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \
442 return (_s); })
443#define return_UINT8(s) ACPI_DO_WHILE0 ({ \
444 register u8 _s = (u8) (s); \
445 acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
446 return (_s); })
447#define return_UINT32(s) ACPI_DO_WHILE0 ({ \
448 register u32 _s = (u32) (s); \
449 acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
450 return (_s); })
451#else /* Use original less-safe macros */
452
453#define return_ACPI_STATUS(s) ACPI_DO_WHILE0 ({ \
454 acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, (s)); \
455 return((s)); })
456#define return_PTR(s) ACPI_DO_WHILE0 ({ \
457 acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \
458 return((s)); })
459#define return_VALUE(s) ACPI_DO_WHILE0 ({ \
460 acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) (s)); \
461 return((s)); })
462#define return_UINT8(s) return_VALUE(s)
463#define return_UINT32(s) return_VALUE(s)
464
465#endif /* ACPI_SIMPLE_RETURN_MACROS */
466
467#else /* !CONFIG_ACPI_DEBUG_FUNC_TRACE */
468
469#define ACPI_FUNCTION_TRACE(a)
470#define ACPI_FUNCTION_TRACE_PTR(a,b)
471#define ACPI_FUNCTION_TRACE_U32(a,b)
472#define ACPI_FUNCTION_TRACE_STR(a,b)
473#define ACPI_FUNCTION_EXIT
474#define ACPI_FUNCTION_STATUS_EXIT(s)
475#define ACPI_FUNCTION_VALUE_EXIT(s)
476#define ACPI_FUNCTION_TRACE(a)
477#define ACPI_FUNCTION_ENTRY()
478
479#define return_VOID return
480#define return_ACPI_STATUS(s) return(s)
481#define return_VALUE(s) return(s)
482#define return_UINT8(s) return(s)
483#define return_UINT32(s) return(s)
484#define return_PTR(s) return(s)
485
486#endif /* CONFIG_ACPI_DEBUG_FUNC_TRACE */
487
488/* Conditional execution */
489
490#define ACPI_DEBUG_EXEC(a) a
491#define ACPI_NORMAL_EXEC(a)
492
493#define ACPI_DEBUG_DEFINE(a) a;
494#define ACPI_DEBUG_ONLY_MEMBERS(a) a;
495#define _VERBOSE_STRUCTURES
496
497/* Stack and buffer dumping */
498
499#define ACPI_DUMP_STACK_ENTRY(a) acpi_ex_dump_operand((a), 0)
500#define ACPI_DUMP_OPERANDS(a, b, c) acpi_ex_dump_operands(a, b, c)
501
502#define ACPI_DUMP_ENTRY(a, b) acpi_ns_dump_entry (a, b)
503#define ACPI_DUMP_PATHNAME(a, b, c, d) acpi_ns_dump_pathname(a, b, c, d)
504#define ACPI_DUMP_RESOURCE_LIST(a) acpi_rs_dump_resource_list(a)
505#define ACPI_DUMP_BUFFER(a, b) acpi_ut_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
506
507#else
508/*
509 * This is the non-debug case -- make everything go away,
510 * leaving no executable debug code!
511 */
512#define ACPI_DEBUG_EXEC(a)
513#define ACPI_NORMAL_EXEC(a) a;
514
515#define ACPI_DEBUG_DEFINE(a) do { } while(0)
516#define ACPI_DEBUG_ONLY_MEMBERS(a) do { } while(0)
517#define ACPI_FUNCTION_TRACE(a) do { } while(0)
518#define ACPI_FUNCTION_TRACE_PTR(a, b) do { } while(0)
519#define ACPI_FUNCTION_TRACE_U32(a, b) do { } while(0)
520#define ACPI_FUNCTION_TRACE_STR(a, b) do { } while(0)
521#define ACPI_FUNCTION_EXIT do { } while(0)
522#define ACPI_FUNCTION_STATUS_EXIT(s) do { } while(0)
523#define ACPI_FUNCTION_VALUE_EXIT(s) do { } while(0)
524#define ACPI_FUNCTION_ENTRY() do { } while(0)
525#define ACPI_DUMP_STACK_ENTRY(a) do { } while(0)
526#define ACPI_DUMP_OPERANDS(a, b, c) do { } while(0)
527#define ACPI_DUMP_ENTRY(a, b) do { } while(0)
528#define ACPI_DUMP_TABLES(a, b) do { } while(0)
529#define ACPI_DUMP_PATHNAME(a, b, c, d) do { } while(0)
530#define ACPI_DUMP_RESOURCE_LIST(a) do { } while(0)
531#define ACPI_DUMP_BUFFER(a, b) do { } while(0)
532
533#define return_VOID return
534#define return_ACPI_STATUS(s) return(s)
535#define return_VALUE(s) return(s)
536#define return_UINT8(s) return(s)
537#define return_UINT32(s) return(s)
538#define return_PTR(s) return(s)
539
540#endif /* ACPI_DEBUG_OUTPUT */
541
542#if (!ACPI_REDUCED_HARDWARE)
543#define ACPI_HW_OPTIONAL_FUNCTION(addr) addr
544#else
545#define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL
546#endif
547
548/*
549 * Some code only gets executed when the debugger is built in.
550 * Note that this is entirely independent of whether the
551 * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
552 */
553#ifdef ACPI_DEBUGGER
554#define ACPI_DEBUGGER_EXEC(a) a
555#else
556#define ACPI_DEBUGGER_EXEC(a)
557#endif
558
559#ifdef ACPI_DEBUG_OUTPUT
560/*
561 * 1) Set name to blanks
562 * 2) Copy the object name
563 */
564#define ACPI_ADD_OBJECT_NAME(a,b) ACPI_MEMSET (a->common.name, ' ', sizeof (a->common.name));\
565 ACPI_STRNCPY (a->common.name, acpi_gbl_ns_type_names[b], sizeof (a->common.name))
566#else
567
568#define ACPI_ADD_OBJECT_NAME(a,b)
569#endif
570
571/*
572 * Memory allocation tracking (DEBUG ONLY)
573 */
574#define ACPI_MEM_PARAMETERS _COMPONENT, _acpi_module_name, __LINE__
575
576#ifndef ACPI_DBG_TRACK_ALLOCATIONS
577
578/* Memory allocation */
579
580#ifndef ACPI_ALLOCATE
581#define ACPI_ALLOCATE(a) acpi_ut_allocate((acpi_size)(a), ACPI_MEM_PARAMETERS)
582#endif
583#ifndef ACPI_ALLOCATE_ZEROED
584#define ACPI_ALLOCATE_ZEROED(a) acpi_ut_allocate_zeroed((acpi_size)(a), ACPI_MEM_PARAMETERS)
585#endif
586#ifndef ACPI_FREE
587#define ACPI_FREE(a) acpio_os_free(a)
588#endif
589#define ACPI_MEM_TRACKING(a)
590
591#else
592
593/* Memory allocation */
594
595#define ACPI_ALLOCATE(a) acpi_ut_allocate_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
596#define ACPI_ALLOCATE_ZEROED(a) acpi_ut_allocate_zeroed_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
597#define ACPI_FREE(a) acpi_ut_free_and_track(a, ACPI_MEM_PARAMETERS)
598#define ACPI_MEM_TRACKING(a) a
599
600#endif /* ACPI_DBG_TRACK_ALLOCATIONS */
601
602/* Preemption point */
603#ifndef ACPI_PREEMPTION_POINT
604#define ACPI_PREEMPTION_POINT() /* no preemption */
605#endif
606
607#endif /* ACMACROS_H */
Linux kernel - Deliverables
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