drivers/acpi/acpica/acmacros.h

   1 /******************************************************************************
   2  *
   3  * Name: acmacros.h - C macros for the entire subsystem.
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2015, 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_CAST8(ptr)                 ACPI_CAST_PTR (u8, (ptr))
  53 #define ACPI_CAST16(ptr)                ACPI_CAST_PTR (u16, (ptr))
  54 #define ACPI_CAST32(ptr)                ACPI_CAST_PTR (u32, (ptr))
  55 #define ACPI_CAST64(ptr)                ACPI_CAST_PTR (u64, (ptr))
  56 #define ACPI_GET8(ptr)                  (*ACPI_CAST8 (ptr))
  57 #define ACPI_GET16(ptr)                 (*ACPI_CAST16 (ptr))
  58 #define ACPI_GET32(ptr)                 (*ACPI_CAST32 (ptr))
  59 #define ACPI_GET64(ptr)                 (*ACPI_CAST64 (ptr))
  60 #define ACPI_SET8(ptr, val)             (*ACPI_CAST8 (ptr) = (u8) (val))
  61 #define ACPI_SET16(ptr, val)            (*ACPI_CAST16 (ptr) = (u16) (val))
  62 #define ACPI_SET32(ptr, val)            (*ACPI_CAST32 (ptr) = (u32) (val))
  63 #define ACPI_SET64(ptr, val)            (*ACPI_CAST64 (ptr) = (u64) (val))
  64
  65 /*
  66  * printf() format helper. This macros is a workaround for the difficulties
  67  * with emitting 64-bit integers and 64-bit pointers with the same code
  68  * for both 32-bit and 64-bit hosts.
  69  */
  70 #define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)
  71
  72 /*
  73  * Macros for moving data around to/from buffers that are possibly unaligned.
  74  * If the hardware supports the transfer of unaligned data, just do the store.
  75  * Otherwise, we have to move one byte at a time.
  76  */
  77 #ifdef ACPI_BIG_ENDIAN
  78 /*
  79  * Macros for big-endian machines
  80  */
  81
  82 /* These macros reverse the bytes during the move, converting little-endian to big endian */
  83
  84          /* Big Endian      <==        Little Endian */
  85          /*  Hi...Lo                     Lo...Hi     */
  86 /* 16-bit source, 16/32/64 destination */
  87
  88 #define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
  89                           ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
  90
  91 #define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d))=0;\
  92                                           ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
  93                                           ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
  94
  95 #define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
  96                                                            ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
  97                                                            ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
  98
  99 /* 32-bit source, 16/32/64 destination */
 100
 101 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 102
 103 #define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
 104                                                                           ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
 105                                                                           ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
 106                                                                           ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
 107
 108 #define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
 109                                                                                    ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
 110                                                                                    ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
 111                                                                                    ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
 112                                                                                    ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
 113
 114 /* 64-bit source, 16/32/64 destination */
 115
 116 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 117
 118 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)        /* Truncate to 32 */
 119
 120 #define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
 121                                                                                  ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
 122                                                                                  ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
 123                                                                                  ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
 124                                                                                  ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
 125                                                                                  ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
 126                                                                                  ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
 127                                                                                  ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
 128 #else
 129 /*
 130  * Macros for little-endian machines
 131  */
 132
 133 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
 134
 135 /* The hardware supports unaligned transfers, just do the little-endian move */
 136
 137 /* 16-bit source, 16/32/64 destination */
 138
 139 #define ACPI_MOVE_16_TO_16(d, s)        *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
 140 #define ACPI_MOVE_16_TO_32(d, s)        *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
 141 #define ACPI_MOVE_16_TO_64(d, s)        *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
 142
 143 /* 32-bit source, 16/32/64 destination */
 144
 145 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 146 #define ACPI_MOVE_32_TO_32(d, s)        *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
 147 #define ACPI_MOVE_32_TO_64(d, s)        *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
 148
 149 /* 64-bit source, 16/32/64 destination */
 150
 151 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 152 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)        /* Truncate to 32 */
 153 #define ACPI_MOVE_64_TO_64(d, s)        *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
 154
 155 #else
 156 /*
 157  * The hardware does not support unaligned transfers. We must move the
 158  * data one byte at a time. These macros work whether the source or
 159  * the destination (or both) is/are unaligned. (Little-endian move)
 160  */
 161
 162 /* 16-bit source, 16/32/64 destination */
 163
 164 #define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 165                                                                                  ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
 166
 167 #define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
 168 #define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
 169
 170 /* 32-bit source, 16/32/64 destination */
 171
 172 #define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 173
 174 #define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 175                                                                                  ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
 176                                                                                  ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
 177                                                                                  ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
 178
 179 #define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
 180
 181 /* 64-bit source, 16/32/64 destination */
 182
 183 #define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)        /* Truncate to 16 */
 184 #define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)        /* Truncate to 32 */
 185 #define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 186                                                                                  ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
 187                                                                                  ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
 188                                                                                  ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
 189                                                                                  ((  u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
 190                                                                                  ((  u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
 191                                                                                  ((  u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
 192                                                                                  ((  u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
 193 #endif
 194 #endif
 195
 196 /*
 197  * Fast power-of-two math macros for non-optimized compilers
 198  */
 199 #define _ACPI_DIV(value, power_of2)     ((u32) ((value) >> (power_of2)))
 200 #define _ACPI_MUL(value, power_of2)     ((u32) ((value) << (power_of2)))
 201 #define _ACPI_MOD(value, divisor)       ((u32) ((value) & ((divisor) -1)))
 202
 203 #define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
 204 #define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
 205 #define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)
 206
 207 #define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
 208 #define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
 209 #define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)
 210
 211 #define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
 212 #define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
 213 #define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)
 214
 215 #define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
 216 #define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
 217 #define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)
 218
 219 #define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
 220 #define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
 221 #define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)
 222
 223 /*
 224  * Rounding macros (Power of two boundaries only)
 225  */
 226 #define ACPI_ROUND_DOWN(value, boundary)    (((acpi_size)(value)) & \
 227                                                                                                 (~(((acpi_size) boundary)-1)))
 228
 229 #define ACPI_ROUND_UP(value, boundary)      ((((acpi_size)(value)) + \
 230                                                                                                 (((acpi_size) boundary)-1)) & \
 231                                                                                                 (~(((acpi_size) boundary)-1)))
 232
 233 /* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */
 234
 235 #define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
 236 #define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
 237 #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(acpi_size))
 238
 239 #define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
 240 #define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
 241 #define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(acpi_size))
 242
 243 #define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
 244 #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
 245
 246 #define ACPI_ROUND_UP_TO_1K(a)              (((a) + 1023) >> 10)
 247
 248 /* Generic (non-power-of-two) rounding */
 249
 250 #define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))
 251
 252 #define ACPI_IS_MISALIGNED(value)           (((acpi_size) value) & (sizeof(acpi_size)-1))
 253
 254 /*
 255  * Bitmask creation
 256  * Bit positions start at zero.
 257  * MASK_BITS_ABOVE creates a mask starting AT the position and above
 258  * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
 259  */
 260 #define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_UINT64_MAX) << ((u32) (position))))
 261 #define ACPI_MASK_BITS_BELOW(position)      ((ACPI_UINT64_MAX) << ((u32) (position)))
 262
 263 /* Bitfields within ACPI registers */
 264
 265 #define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
 266         ((val << pos) & mask)
 267
 268 #define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
 269         reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
 270
 271 #define ACPI_INSERT_BITS(target, mask, source) \
 272         target = ((target & (~(mask))) | (source & mask))
 273
 274 /* Generic bitfield macros and masks */
 275
 276 #define ACPI_GET_BITS(source_ptr, position, mask) \
 277         ((*source_ptr >> position) & mask)
 278
 279 #define ACPI_SET_BITS(target_ptr, position, mask, value) \
 280         (*target_ptr |= ((value & mask) << position))
 281
 282 #define ACPI_1BIT_MASK      0x00000001
 283 #define ACPI_2BIT_MASK      0x00000003
 284 #define ACPI_3BIT_MASK      0x00000007
 285 #define ACPI_4BIT_MASK      0x0000000F
 286 #define ACPI_5BIT_MASK      0x0000001F
 287 #define ACPI_6BIT_MASK      0x0000003F
 288 #define ACPI_7BIT_MASK      0x0000007F
 289 #define ACPI_8BIT_MASK      0x000000FF
 290 #define ACPI_16BIT_MASK     0x0000FFFF
 291 #define ACPI_24BIT_MASK     0x00FFFFFF
 292
 293 /* Macros to extract flag bits from position zero */
 294
 295 #define ACPI_GET_1BIT_FLAG(value)                   ((value) & ACPI_1BIT_MASK)
 296 #define ACPI_GET_2BIT_FLAG(value)                   ((value) & ACPI_2BIT_MASK)
 297 #define ACPI_GET_3BIT_FLAG(value)                   ((value) & ACPI_3BIT_MASK)
 298 #define ACPI_GET_4BIT_FLAG(value)                   ((value) & ACPI_4BIT_MASK)
 299
 300 /* Macros to extract flag bits from position one and above */
 301
 302 #define ACPI_EXTRACT_1BIT_FLAG(field, position)     (ACPI_GET_1BIT_FLAG ((field) >> position))
 303 #define ACPI_EXTRACT_2BIT_FLAG(field, position)     (ACPI_GET_2BIT_FLAG ((field) >> position))
 304 #define ACPI_EXTRACT_3BIT_FLAG(field, position)     (ACPI_GET_3BIT_FLAG ((field) >> position))
 305 #define ACPI_EXTRACT_4BIT_FLAG(field, position)     (ACPI_GET_4BIT_FLAG ((field) >> position))
 306
 307 /* ACPI Pathname helpers */
 308
 309 #define ACPI_IS_ROOT_PREFIX(c)      ((c) == (u8) 0x5C)  /* Backslash */
 310 #define ACPI_IS_PARENT_PREFIX(c)    ((c) == (u8) 0x5E)  /* Carat */
 311 #define ACPI_IS_PATH_SEPARATOR(c)   ((c) == (u8) 0x2E)  /* Period (dot) */
 312
 313 /*
 314  * An object of type struct acpi_namespace_node can appear in some contexts
 315  * where a pointer to an object of type union acpi_operand_object can also
 316  * appear. This macro is used to distinguish them.
 317  *
 318  * The "DescriptorType" field is the second field in both structures.
 319  */
 320 #define ACPI_GET_DESCRIPTOR_PTR(d)      (((union acpi_descriptor *)(void *)(d))->common.common_pointer)
 321 #define ACPI_SET_DESCRIPTOR_PTR(d, p)   (((union acpi_descriptor *)(void *)(d))->common.common_pointer = (p))
 322 #define ACPI_GET_DESCRIPTOR_TYPE(d)     (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
 323 #define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = (t))
 324
 325 /*
 326  * Macros for the master AML opcode table
 327  */
 328 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
 329 #define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
 330         {name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
 331 #else
 332 #define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
 333         {(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
 334 #endif
 335
 336 #define ARG_TYPE_WIDTH                  5
 337 #define ARG_1(x)                        ((u32)(x))
 338 #define ARG_2(x)                        ((u32)(x) << (1 * ARG_TYPE_WIDTH))
 339 #define ARG_3(x)                        ((u32)(x) << (2 * ARG_TYPE_WIDTH))
 340 #define ARG_4(x)                        ((u32)(x) << (3 * ARG_TYPE_WIDTH))
 341 #define ARG_5(x)                        ((u32)(x) << (4 * ARG_TYPE_WIDTH))
 342 #define ARG_6(x)                        ((u32)(x) << (5 * ARG_TYPE_WIDTH))
 343
 344 #define ARGI_LIST1(a)                   (ARG_1(a))
 345 #define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
 346 #define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
 347 #define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
 348 #define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
 349 #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))
 350
 351 #define ARGP_LIST1(a)                   (ARG_1(a))
 352 #define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
 353 #define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
 354 #define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
 355 #define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
 356 #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))
 357
 358 #define GET_CURRENT_ARG_TYPE(list)      (list & ((u32) 0x1F))
 359 #define INCREMENT_ARG_LIST(list)        (list >>= ((u32) ARG_TYPE_WIDTH))
 360
 361 /*
 362  * Ascii error messages can be configured out
 363  */
 364 #ifndef ACPI_NO_ERROR_MESSAGES
 365 /*
 366  * Error reporting. Callers module and line number are inserted by AE_INFO,
 367  * the plist contains a set of parens to allow variable-length lists.
 368  * These macros are used for both the debug and non-debug versions of the code.
 369  */
 370 #define ACPI_ERROR_NAMESPACE(s, e)          acpi_ut_namespace_error (AE_INFO, s, e);
 371 #define ACPI_ERROR_METHOD(s, n, p, e)       acpi_ut_method_error (AE_INFO, s, n, p, e);
 372 #define ACPI_WARN_PREDEFINED(plist)         acpi_ut_predefined_warning plist
 373 #define ACPI_INFO_PREDEFINED(plist)         acpi_ut_predefined_info plist
 374 #define ACPI_BIOS_ERROR_PREDEFINED(plist)   acpi_ut_predefined_bios_error plist
 375
 376 #else
 377
 378 /* No error messages */
 379
 380 #define ACPI_ERROR_NAMESPACE(s, e)
 381 #define ACPI_ERROR_METHOD(s, n, p, e)
 382 #define ACPI_WARN_PREDEFINED(plist)
 383 #define ACPI_INFO_PREDEFINED(plist)
 384 #define ACPI_BIOS_ERROR_PREDEFINED(plist)
 385
 386 #endif                          /* ACPI_NO_ERROR_MESSAGES */
 387
 388 #if (!ACPI_REDUCED_HARDWARE)
 389 #define ACPI_HW_OPTIONAL_FUNCTION(addr)     addr
 390 #else
 391 #define ACPI_HW_OPTIONAL_FUNCTION(addr)     NULL
 392 #endif
 393
 394 /*
 395  * Some code only gets executed when the debugger is built in.
 396  * Note that this is entirely independent of whether the
 397  * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
 398  */
 399 #ifdef ACPI_DEBUGGER
 400 #define ACPI_DEBUGGER_EXEC(a)           a
 401 #else
 402 #define ACPI_DEBUGGER_EXEC(a)
 403 #endif
 404
 405 /*
 406  * Macros used for ACPICA utilities only
 407  */
 408
 409 /* Generate a UUID */
 410
 411 #define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
 412         (a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
 413         (b) & 0xFF, ((b) >> 8) & 0xFF, \
 414         (c) & 0xFF, ((c) >> 8) & 0xFF, \
 415         (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
 416
 417 #define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
 418
 419 #endif                          /* ACMACROS_H */