1 /******************************************************************************* 2 * 3 * Module Name: rsaddr - Address resource descriptors (16/32/64) 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 #include <acpi/acpi.h> 45 #include "accommon.h" 46 #include "acresrc.h" 47 48 #define _COMPONENT ACPI_RESOURCES 49 ACPI_MODULE_NAME("rsaddr") 50 51 /******************************************************************************* 52 * 53 * acpi_rs_convert_address16 - All WORD (16-bit) address resources 54 * 55 ******************************************************************************/ 56 struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { 57 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, 58 ACPI_RS_SIZE(struct acpi_resource_address16), 59 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, 60 61 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, 62 sizeof(struct aml_resource_address16), 63 0}, 64 65 /* Resource Type, General Flags, and Type-Specific Flags */ 66 67 {ACPI_RSC_ADDRESS, 0, 0, 0}, 68 69 /* 70 * These fields are contiguous in both the source and destination: 71 * Address Granularity 72 * Address Range Minimum 73 * Address Range Maximum 74 * Address Translation Offset 75 * Address Length 76 */ 77 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), 78 AML_OFFSET(address16.granularity), 79 5}, 80 81 /* Optional resource_source (Index and String) */ 82 83 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), 84 0, 85 sizeof(struct aml_resource_address16)} 86 }; 87 88 /******************************************************************************* 89 * 90 * acpi_rs_convert_address32 - All DWORD (32-bit) address resources 91 * 92 ******************************************************************************/ 93 94 struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { 95 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, 96 ACPI_RS_SIZE(struct acpi_resource_address32), 97 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, 98 99 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, 100 sizeof(struct aml_resource_address32), 101 0}, 102 103 /* Resource Type, General Flags, and Type-Specific Flags */ 104 105 {ACPI_RSC_ADDRESS, 0, 0, 0}, 106 107 /* 108 * These fields are contiguous in both the source and destination: 109 * Address Granularity 110 * Address Range Minimum 111 * Address Range Maximum 112 * Address Translation Offset 113 * Address Length 114 */ 115 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), 116 AML_OFFSET(address32.granularity), 117 5}, 118 119 /* Optional resource_source (Index and String) */ 120 121 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), 122 0, 123 sizeof(struct aml_resource_address32)} 124 }; 125 126 /******************************************************************************* 127 * 128 * acpi_rs_convert_address64 - All QWORD (64-bit) address resources 129 * 130 ******************************************************************************/ 131 132 struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { 133 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, 134 ACPI_RS_SIZE(struct acpi_resource_address64), 135 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, 136 137 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, 138 sizeof(struct aml_resource_address64), 139 0}, 140 141 /* Resource Type, General Flags, and Type-Specific Flags */ 142 143 {ACPI_RSC_ADDRESS, 0, 0, 0}, 144 145 /* 146 * These fields are contiguous in both the source and destination: 147 * Address Granularity 148 * Address Range Minimum 149 * Address Range Maximum 150 * Address Translation Offset 151 * Address Length 152 */ 153 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), 154 AML_OFFSET(address64.granularity), 155 5}, 156 157 /* Optional resource_source (Index and String) */ 158 159 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), 160 0, 161 sizeof(struct aml_resource_address64)} 162 }; 163 164 /******************************************************************************* 165 * 166 * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources 167 * 168 ******************************************************************************/ 169 170 struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { 171 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, 172 ACPI_RS_SIZE(struct acpi_resource_extended_address64), 173 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, 174 175 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, 176 sizeof(struct aml_resource_extended_address64), 177 0}, 178 179 /* Resource Type, General Flags, and Type-Specific Flags */ 180 181 {ACPI_RSC_ADDRESS, 0, 0, 0}, 182 183 /* Revision ID */ 184 185 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD), 186 AML_OFFSET(ext_address64.revision_iD), 187 1}, 188 /* 189 * These fields are contiguous in both the source and destination: 190 * Address Granularity 191 * Address Range Minimum 192 * Address Range Maximum 193 * Address Translation Offset 194 * Address Length 195 * Type-Specific Attribute 196 */ 197 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), 198 AML_OFFSET(ext_address64.granularity), 199 6} 200 }; 201 202 /******************************************************************************* 203 * 204 * acpi_rs_convert_general_flags - Flags common to all address descriptors 205 * 206 ******************************************************************************/ 207 208 static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { 209 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), 210 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, 211 212 /* Resource Type (Memory, Io, bus_number, etc.) */ 213 214 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), 215 AML_OFFSET(address.resource_type), 216 1}, 217 218 /* General Flags - Consume, Decode, min_fixed, max_fixed */ 219 220 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), 221 AML_OFFSET(address.flags), 222 0}, 223 224 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), 225 AML_OFFSET(address.flags), 226 1}, 227 228 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), 229 AML_OFFSET(address.flags), 230 2}, 231 232 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), 233 AML_OFFSET(address.flags), 234 3} 235 }; 236 237 /******************************************************************************* 238 * 239 * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors 240 * 241 ******************************************************************************/ 242 243 static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { 244 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 245 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, 246 247 /* Memory-specific flags */ 248 249 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), 250 AML_OFFSET(address.specific_flags), 251 0}, 252 253 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), 254 AML_OFFSET(address.specific_flags), 255 1}, 256 257 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), 258 AML_OFFSET(address.specific_flags), 259 3}, 260 261 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), 262 AML_OFFSET(address.specific_flags), 263 5} 264 }; 265 266 /******************************************************************************* 267 * 268 * acpi_rs_convert_io_flags - Flags common to I/O address descriptors 269 * 270 ******************************************************************************/ 271 272 static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { 273 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 274 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, 275 276 /* I/O-specific flags */ 277 278 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), 279 AML_OFFSET(address.specific_flags), 280 0}, 281 282 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), 283 AML_OFFSET(address.specific_flags), 284 4}, 285 286 {ACPI_RSC_1BITFLAG, 287 ACPI_RS_OFFSET(data.address.info.io.translation_type), 288 AML_OFFSET(address.specific_flags), 289 5} 290 }; 291 292 /******************************************************************************* 293 * 294 * FUNCTION: acpi_rs_get_address_common 295 * 296 * PARAMETERS: Resource - Pointer to the internal resource struct 297 * Aml - Pointer to the AML resource descriptor 298 * 299 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise 300 * 301 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor 302 * to an internal resource descriptor 303 * 304 ******************************************************************************/ 305 306 u8 307 acpi_rs_get_address_common(struct acpi_resource *resource, 308 union aml_resource *aml) 309 { 310 ACPI_FUNCTION_ENTRY(); 311 312 /* Validate the Resource Type */ 313 314 if ((aml->address.resource_type > 2) 315 && (aml->address.resource_type < 0xC0)) { 316 return (FALSE); 317 } 318 319 /* Get the Resource Type and General Flags */ 320 321 (void)acpi_rs_convert_aml_to_resource(resource, aml, 322 acpi_rs_convert_general_flags); 323 324 /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ 325 326 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 327 (void)acpi_rs_convert_aml_to_resource(resource, aml, 328 acpi_rs_convert_mem_flags); 329 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 330 (void)acpi_rs_convert_aml_to_resource(resource, aml, 331 acpi_rs_convert_io_flags); 332 } else { 333 /* Generic resource type, just grab the type_specific byte */ 334 335 resource->data.address.info.type_specific = 336 aml->address.specific_flags; 337 } 338 339 return (TRUE); 340 } 341 342 /******************************************************************************* 343 * 344 * FUNCTION: acpi_rs_set_address_common 345 * 346 * PARAMETERS: Aml - Pointer to the AML resource descriptor 347 * Resource - Pointer to the internal resource struct 348 * 349 * RETURN: None 350 * 351 * DESCRIPTION: Convert common flag fields from a resource descriptor to an 352 * AML descriptor 353 * 354 ******************************************************************************/ 355 356 void 357 acpi_rs_set_address_common(union aml_resource *aml, 358 struct acpi_resource *resource) 359 { 360 ACPI_FUNCTION_ENTRY(); 361 362 /* Set the Resource Type and General Flags */ 363 364 (void)acpi_rs_convert_resource_to_aml(resource, aml, 365 acpi_rs_convert_general_flags); 366 367 /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ 368 369 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 370 (void)acpi_rs_convert_resource_to_aml(resource, aml, 371 acpi_rs_convert_mem_flags); 372 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 373 (void)acpi_rs_convert_resource_to_aml(resource, aml, 374 acpi_rs_convert_io_flags); 375 } else { 376 /* Generic resource type, just copy the type_specific byte */ 377 378 aml->address.specific_flags = 379 resource->data.address.info.type_specific; 380 } 381 } 382