xref: /titanic_50/usr/src/uts/intel/sys/acpi/acmacros.h (revision 9584cebb1c69707f4c67306b661c2ed47d8676f1)
1 /******************************************************************************
2  *
3  * Name: acmacros.h - C macros for the entire subsystem.
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2011, 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 /*
49  * Extract data using a pointer. Any more than a byte and we
50  * get into potential aligment issues -- see the STORE macros below.
51  * Use with care.
52  */
53 #define ACPI_GET8(ptr)                  *ACPI_CAST_PTR (UINT8, ptr)
54 #define ACPI_GET16(ptr)                 *ACPI_CAST_PTR (UINT16, ptr)
55 #define ACPI_GET32(ptr)                 *ACPI_CAST_PTR (UINT32, ptr)
56 #define ACPI_GET64(ptr)                 *ACPI_CAST_PTR (UINT64, ptr)
57 #define ACPI_SET8(ptr)                  *ACPI_CAST_PTR (UINT8, ptr)
58 #define ACPI_SET16(ptr)                 *ACPI_CAST_PTR (UINT16, ptr)
59 #define ACPI_SET32(ptr)                 *ACPI_CAST_PTR (UINT32, ptr)
60 #define ACPI_SET64(ptr)                 *ACPI_CAST_PTR (UINT64, ptr)
61 
62 /*
63  * printf() format helpers
64  */
65 
66 /* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */
67 
68 #define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)
69 
70 #if ACPI_MACHINE_WIDTH == 64
71 #define ACPI_FORMAT_NATIVE_UINT(i)      ACPI_FORMAT_UINT64(i)
72 #else
73 #define ACPI_FORMAT_NATIVE_UINT(i)      0, (i)
74 #endif
75 
76 
77 /*
78  * Macros for moving data around to/from buffers that are possibly unaligned.
79  * If the hardware supports the transfer of unaligned data, just do the store.
80  * Otherwise, we have to move one byte at a time.
81  */
82 #ifdef ACPI_BIG_ENDIAN
83 /*
84  * Macros for big-endian machines
85  */
86 
87 /* These macros reverse the bytes during the move, converting little-endian to big endian */
88 
89                                                      /* Big Endian      <==        Little Endian */
90                                                      /*  Hi...Lo                     Lo...Hi     */
91 /* 16-bit source, 16/32/64 destination */
92 
93 #define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[1];\
94                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[0];}
95 
96 #define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d))=0;\
97                                            ((UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
98                                            ((UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
99 
100 #define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
101                                            ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
102                                            ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
103 
104 /* 32-bit source, 16/32/64 destination */
105 
106 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
107 
108 #define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[3];\
109                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[2];\
110                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[1];\
111                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[0];}
112 
113 #define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d))=0;\
114                                            ((UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
115                                            ((UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
116                                            ((UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
117                                            ((UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
118 
119 /* 64-bit source, 16/32/64 destination */
120 
121 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
122 
123 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
124 
125 #define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[7];\
126                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[6];\
127                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[5];\
128                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[4];\
129                                          ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[3];\
130                                          ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[2];\
131                                          ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[1];\
132                                          ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[0];}
133 #else
134 /*
135  * Macros for little-endian machines
136  */
137 
138 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
139 
140 /* The hardware supports unaligned transfers, just do the little-endian move */
141 
142 /* 16-bit source, 16/32/64 destination */
143 
144 #define ACPI_MOVE_16_TO_16(d, s)        *(UINT16 *)(void *)(d) = *(UINT16 *)(void *)(s)
145 #define ACPI_MOVE_16_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT16 *)(void *)(s)
146 #define ACPI_MOVE_16_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT16 *)(void *)(s)
147 
148 /* 32-bit source, 16/32/64 destination */
149 
150 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
151 #define ACPI_MOVE_32_TO_32(d, s)        *(UINT32 *)(void *)(d) = *(UINT32 *)(void *)(s)
152 #define ACPI_MOVE_32_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT32 *)(void *)(s)
153 
154 /* 64-bit source, 16/32/64 destination */
155 
156 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
157 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
158 #define ACPI_MOVE_64_TO_64(d, s)        *(UINT64 *)(void *)(d) = *(UINT64 *)(void *)(s)
159 
160 #else
161 /*
162  * The hardware does not support unaligned transfers. We must move the
163  * data one byte at a time. These macros work whether the source or
164  * the destination (or both) is/are unaligned. (Little-endian move)
165  */
166 
167 /* 16-bit source, 16/32/64 destination */
168 
169 #define ACPI_MOVE_16_TO_16(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
170                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];}
171 
172 #define ACPI_MOVE_16_TO_32(d, s)        {(*(UINT32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
173 #define ACPI_MOVE_16_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
174 
175 /* 32-bit source, 16/32/64 destination */
176 
177 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
178 
179 #define ACPI_MOVE_32_TO_32(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
180                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
181                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
182                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];}
183 
184 #define ACPI_MOVE_32_TO_64(d, s)        {(*(UINT64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
185 
186 /* 64-bit source, 16/32/64 destination */
187 
188 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)    /* Truncate to 16 */
189 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)    /* Truncate to 32 */
190 #define ACPI_MOVE_64_TO_64(d, s)        {((  UINT8 *)(void *)(d))[0] = ((UINT8 *)(void *)(s))[0];\
191                                          ((  UINT8 *)(void *)(d))[1] = ((UINT8 *)(void *)(s))[1];\
192                                          ((  UINT8 *)(void *)(d))[2] = ((UINT8 *)(void *)(s))[2];\
193                                          ((  UINT8 *)(void *)(d))[3] = ((UINT8 *)(void *)(s))[3];\
194                                          ((  UINT8 *)(void *)(d))[4] = ((UINT8 *)(void *)(s))[4];\
195                                          ((  UINT8 *)(void *)(d))[5] = ((UINT8 *)(void *)(s))[5];\
196                                          ((  UINT8 *)(void *)(d))[6] = ((UINT8 *)(void *)(s))[6];\
197                                          ((  UINT8 *)(void *)(d))[7] = ((UINT8 *)(void *)(s))[7];}
198 #endif
199 #endif
200 
201 
202 /*
203  * Fast power-of-two math macros for non-optimized compilers
204  */
205 #define _ACPI_DIV(value, PowerOf2)      ((UINT32) ((value) >> (PowerOf2)))
206 #define _ACPI_MUL(value, PowerOf2)      ((UINT32) ((value) << (PowerOf2)))
207 #define _ACPI_MOD(value, Divisor)       ((UINT32) ((value) & ((Divisor) -1)))
208 
209 #define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
210 #define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
211 #define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)
212 
213 #define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
214 #define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
215 #define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)
216 
217 #define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
218 #define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
219 #define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)
220 
221 #define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
222 #define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
223 #define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)
224 
225 #define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
226 #define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
227 #define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)
228 
229 /*
230  * Rounding macros (Power of two boundaries only)
231  */
232 #define ACPI_ROUND_DOWN(value, boundary)    (((ACPI_SIZE)(value)) & \
233                                                 (~(((ACPI_SIZE) boundary)-1)))
234 
235 #define ACPI_ROUND_UP(value, boundary)      ((((ACPI_SIZE)(value)) + \
236                                                 (((ACPI_SIZE) boundary)-1)) & \
237                                                 (~(((ACPI_SIZE) boundary)-1)))
238 
239 /* Note: sizeof(ACPI_SIZE) evaluates to either 4 or 8 (32- vs 64-bit mode) */
240 
241 #define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
242 #define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
243 #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(ACPI_SIZE))
244 
245 #define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
246 #define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
247 #define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(ACPI_SIZE))
248 
249 #define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
250 #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
251 
252 #define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
253 
254 /* Generic (non-power-of-two) rounding */
255 
256 #define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))
257 
258 #define ACPI_IS_MISALIGNED(value)           (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
259 
260 /*
261  * Bitmask creation
262  * Bit positions start at zero.
263  * MASK_BITS_ABOVE creates a mask starting AT the position and above
264  * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
265  */
266 #define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
267 #define ACPI_MASK_BITS_BELOW(position)      ((ACPI_UINT64_MAX) << ((UINT32) (position)))
268 
269 /* Bitfields within ACPI registers */
270 
271 #define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)      ((Val << Pos) & Mask)
272 #define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val)  Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)
273 
274 #define ACPI_INSERT_BITS(Target, Mask, Source)          Target = ((Target & (~(Mask))) | (Source & Mask))
275 
276 /*
277  * An ACPI_NAMESPACE_NODE can appear in some contexts
278  * where a pointer to an ACPI_OPERAND_OBJECT can also
279  * appear. This macro is used to distinguish them.
280  *
281  * The "Descriptor" field is the first field in both structures.
282  */
283 #define ACPI_GET_DESCRIPTOR_TYPE(d)     (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType)
284 #define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((ACPI_DESCRIPTOR *)(void *)(d))->Common.DescriptorType = t)
285 
286 /*
287  * Macros for the master AML opcode table
288  */
289 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
290 #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
291     {Name, (UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
292 #else
293 #define ACPI_OP(Name, PArgs, IArgs, ObjType, Class, Type, Flags) \
294     {(UINT32)(PArgs), (UINT32)(IArgs), (UINT32)(Flags), ObjType, Class, Type}
295 #endif
296 
297 #define ARG_TYPE_WIDTH                  5
298 #define ARG_1(x)                        ((UINT32)(x))
299 #define ARG_2(x)                        ((UINT32)(x) << (1 * ARG_TYPE_WIDTH))
300 #define ARG_3(x)                        ((UINT32)(x) << (2 * ARG_TYPE_WIDTH))
301 #define ARG_4(x)                        ((UINT32)(x) << (3 * ARG_TYPE_WIDTH))
302 #define ARG_5(x)                        ((UINT32)(x) << (4 * ARG_TYPE_WIDTH))
303 #define ARG_6(x)                        ((UINT32)(x) << (5 * ARG_TYPE_WIDTH))
304 
305 #define ARGI_LIST1(a)                   (ARG_1(a))
306 #define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
307 #define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
308 #define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
309 #define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
310 #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))
311 
312 #define ARGP_LIST1(a)                   (ARG_1(a))
313 #define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
314 #define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
315 #define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
316 #define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
317 #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))
318 
319 #define GET_CURRENT_ARG_TYPE(List)      (List & ((UINT32) 0x1F))
320 #define INCREMENT_ARG_LIST(List)        (List >>= ((UINT32) ARG_TYPE_WIDTH))
321 
322 /*
323  * Ascii error messages can be configured out
324  */
325 #ifndef ACPI_NO_ERROR_MESSAGES
326 /*
327  * Error reporting. Callers module and line number are inserted by AE_INFO,
328  * the plist contains a set of parens to allow variable-length lists.
329  * These macros are used for both the debug and non-debug versions of the code.
330  */
331 #define ACPI_ERROR_NAMESPACE(s, e)      AcpiUtNamespaceError (AE_INFO, s, e);
332 #define ACPI_ERROR_METHOD(s, n, p, e)   AcpiUtMethodError (AE_INFO, s, n, p, e);
333 #define ACPI_WARN_PREDEFINED(plist)     AcpiUtPredefinedWarning plist
334 #define ACPI_INFO_PREDEFINED(plist)     AcpiUtPredefinedInfo plist
335 
336 #else
337 
338 /* No error messages */
339 
340 #define ACPI_ERROR_NAMESPACE(s, e)
341 #define ACPI_ERROR_METHOD(s, n, p, e)
342 #define ACPI_WARN_PREDEFINED(plist)
343 #define ACPI_INFO_PREDEFINED(plist)
344 
345 #endif /* ACPI_NO_ERROR_MESSAGES */
346 
347 /*
348  * Debug macros that are conditionally compiled
349  */
350 #ifdef ACPI_DEBUG_OUTPUT
351 /*
352  * Function entry tracing
353  */
354 #define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
355                                             AcpiUtTrace(ACPI_DEBUG_PARAMETERS)
356 #define ACPI_FUNCTION_TRACE_PTR(a, b)   ACPI_FUNCTION_NAME(a) \
357                                             AcpiUtTracePtr(ACPI_DEBUG_PARAMETERS, (void *)b)
358 #define ACPI_FUNCTION_TRACE_U32(a, b)   ACPI_FUNCTION_NAME(a) \
359                                             AcpiUtTraceU32(ACPI_DEBUG_PARAMETERS, (UINT32)b)
360 #define ACPI_FUNCTION_TRACE_STR(a, b)   ACPI_FUNCTION_NAME(a) \
361                                             AcpiUtTraceStr(ACPI_DEBUG_PARAMETERS, (char *)b)
362 
363 #define ACPI_FUNCTION_ENTRY()           AcpiUtTrackStackPtr()
364 
365 /*
366  * Function exit tracing.
367  * WARNING: These macros include a return statement. This is usually considered
368  * bad form, but having a separate exit macro is very ugly and difficult to maintain.
369  * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
370  * so that "_AcpiFunctionName" is defined.
371  *
372  * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
373  * about these constructs.
374  */
375 #ifdef ACPI_USE_DO_WHILE_0
376 #define ACPI_DO_WHILE0(a)               do a while(0)
377 #else
378 #define ACPI_DO_WHILE0(a)               a
379 #endif
380 
381 #define return_VOID                     ACPI_DO_WHILE0 ({ \
382                                             AcpiUtExit (ACPI_DEBUG_PARAMETERS); \
383                                             return;})
384 /*
385  * There are two versions of most of the return macros. The default version is
386  * safer, since it avoids side-effects by guaranteeing that the argument will
387  * not be evaluated twice.
388  *
389  * A less-safe version of the macros is provided for optional use if the
390  * compiler uses excessive CPU stack (for example, this may happen in the
391  * debug case if code optimzation is disabled.)
392  */
393 #ifndef ACPI_SIMPLE_RETURN_MACROS
394 
395 #define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
396                                             register ACPI_STATUS _s = (s); \
397                                             AcpiUtStatusExit (ACPI_DEBUG_PARAMETERS, _s); \
398                                             return (_s); })
399 #define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
400                                             register void *_s = (void *) (s); \
401                                             AcpiUtPtrExit (ACPI_DEBUG_PARAMETERS, (UINT8 *) _s); \
402                                             return (_s); })
403 #define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
404                                             register UINT64 _s = (s); \
405                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, _s); \
406                                             return (_s); })
407 #define return_UINT8(s)                 ACPI_DO_WHILE0 ({ \
408                                             register UINT8 _s = (UINT8) (s); \
409                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) _s); \
410                                             return (_s); })
411 #define return_UINT32(s)                ACPI_DO_WHILE0 ({ \
412                                             register UINT32 _s = (UINT32) (s); \
413                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) _s); \
414                                             return (_s); })
415 #else /* Use original less-safe macros */
416 
417 #define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
418                                             AcpiUtStatusExit (ACPI_DEBUG_PARAMETERS, (s)); \
419                                             return((s)); })
420 #define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
421                                             AcpiUtPtrExit (ACPI_DEBUG_PARAMETERS, (UINT8 *) (s)); \
422                                             return((s)); })
423 #define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
424                                             AcpiUtValueExit (ACPI_DEBUG_PARAMETERS, (UINT64) (s)); \
425                                             return((s)); })
426 #define return_UINT8(s)                 return_VALUE(s)
427 #define return_UINT32(s)                return_VALUE(s)
428 
429 #endif /* ACPI_SIMPLE_RETURN_MACROS */
430 
431 
432 /* Conditional execution */
433 
434 #define ACPI_DEBUG_EXEC(a)              a
435 #define ACPI_DEBUG_ONLY_MEMBERS(a)      a;
436 #define _VERBOSE_STRUCTURES
437 
438 
439 /* Various object display routines for debug */
440 
441 #define ACPI_DUMP_STACK_ENTRY(a)        AcpiExDumpOperand((a), 0)
442 #define ACPI_DUMP_OPERANDS(a, b ,c)     AcpiExDumpOperands(a, b, c)
443 #define ACPI_DUMP_ENTRY(a, b)           AcpiNsDumpEntry (a, b)
444 #define ACPI_DUMP_PATHNAME(a, b, c, d)  AcpiNsDumpPathname(a, b, c, d)
445 #define ACPI_DUMP_BUFFER(a, b)          AcpiUtDumpBuffer((UINT8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
446 
447 #else
448 /*
449  * This is the non-debug case -- make everything go away,
450  * leaving no executable debug code!
451  */
452 #define ACPI_DEBUG_EXEC(a)
453 #define ACPI_DEBUG_ONLY_MEMBERS(a)
454 #define ACPI_FUNCTION_TRACE(a)
455 #define ACPI_FUNCTION_TRACE_PTR(a, b)
456 #define ACPI_FUNCTION_TRACE_U32(a, b)
457 #define ACPI_FUNCTION_TRACE_STR(a, b)
458 #define ACPI_FUNCTION_EXIT
459 #define ACPI_FUNCTION_STATUS_EXIT(s)
460 #define ACPI_FUNCTION_VALUE_EXIT(s)
461 #define ACPI_FUNCTION_ENTRY()
462 #define ACPI_DUMP_STACK_ENTRY(a)
463 #define ACPI_DUMP_OPERANDS(a, b, c)
464 #define ACPI_DUMP_ENTRY(a, b)
465 #define ACPI_DUMP_TABLES(a, b)
466 #define ACPI_DUMP_PATHNAME(a, b, c, d)
467 #define ACPI_DUMP_BUFFER(a, b)
468 #define ACPI_DEBUG_PRINT(pl)
469 #define ACPI_DEBUG_PRINT_RAW(pl)
470 
471 #define return_VOID                     return
472 #define return_ACPI_STATUS(s)           return(s)
473 #define return_VALUE(s)                 return(s)
474 #define return_UINT8(s)                 return(s)
475 #define return_UINT32(s)                return(s)
476 #define return_PTR(s)                   return(s)
477 
478 #endif /* ACPI_DEBUG_OUTPUT */
479 
480 /*
481  * Some code only gets executed when the debugger is built in.
482  * Note that this is entirely independent of whether the
483  * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
484  */
485 #ifdef ACPI_DEBUGGER
486 #define ACPI_DEBUGGER_EXEC(a)           a
487 #else
488 #define ACPI_DEBUGGER_EXEC(a)
489 #endif
490 
491 
492 /*
493  * Memory allocation tracking (DEBUG ONLY)
494  */
495 #define ACPI_MEM_PARAMETERS         _COMPONENT, _AcpiModuleName, __LINE__
496 
497 #ifndef ACPI_DBG_TRACK_ALLOCATIONS
498 
499 /* Memory allocation */
500 
501 #define ACPI_ALLOCATE(a)            AcpiUtAllocate((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
502 #define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroed((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
503 #define ACPI_FREE(a)                AcpiOsFree(a)
504 #define ACPI_MEM_TRACKING(a)
505 
506 #else
507 
508 /* Memory allocation */
509 
510 #define ACPI_ALLOCATE(a)            AcpiUtAllocateAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
511 #define ACPI_ALLOCATE_ZEROED(a)     AcpiUtAllocateZeroedAndTrack((ACPI_SIZE) (a), ACPI_MEM_PARAMETERS)
512 #define ACPI_FREE(a)                AcpiUtFreeAndTrack(a, ACPI_MEM_PARAMETERS)
513 #define ACPI_MEM_TRACKING(a)        a
514 
515 #endif /* ACPI_DBG_TRACK_ALLOCATIONS */
516 
517 
518 /*
519  * Macros used for ACPICA utilities only
520  */
521 
522 /* Generate a UUID */
523 
524 #define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
525     (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
526     (b) & 0xFF, ((b) >> 8) & 0xFF, \
527     (c) & 0xFF, ((c) >> 8) & 0xFF, \
528     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
529 
530 #define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
531 
532 
533 #endif /* ACMACROS_H */
534