1 /******************************************************************************* 2 * 3 * Module Name: rsaddr - Address resource descriptors (16/32/64) 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2017, 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.address.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.address.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.address.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, 198 ACPI_RS_OFFSET(data.ext_address64.address.granularity), 199 AML_OFFSET(ext_address64.granularity), 200 6} 201 }; 202 203 /******************************************************************************* 204 * 205 * acpi_rs_convert_general_flags - Flags common to all address descriptors 206 * 207 ******************************************************************************/ 208 209 static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { 210 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), 211 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, 212 213 /* Resource Type (Memory, Io, bus_number, etc.) */ 214 215 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), 216 AML_OFFSET(address.resource_type), 217 1}, 218 219 /* General flags - Consume, Decode, min_fixed, max_fixed */ 220 221 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), 222 AML_OFFSET(address.flags), 223 0}, 224 225 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), 226 AML_OFFSET(address.flags), 227 1}, 228 229 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), 230 AML_OFFSET(address.flags), 231 2}, 232 233 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), 234 AML_OFFSET(address.flags), 235 3} 236 }; 237 238 /******************************************************************************* 239 * 240 * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors 241 * 242 ******************************************************************************/ 243 244 static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { 245 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 246 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, 247 248 /* Memory-specific flags */ 249 250 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), 251 AML_OFFSET(address.specific_flags), 252 0}, 253 254 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), 255 AML_OFFSET(address.specific_flags), 256 1}, 257 258 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), 259 AML_OFFSET(address.specific_flags), 260 3}, 261 262 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), 263 AML_OFFSET(address.specific_flags), 264 5} 265 }; 266 267 /******************************************************************************* 268 * 269 * acpi_rs_convert_io_flags - Flags common to I/O address descriptors 270 * 271 ******************************************************************************/ 272 273 static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { 274 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 275 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, 276 277 /* I/O-specific flags */ 278 279 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), 280 AML_OFFSET(address.specific_flags), 281 0}, 282 283 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), 284 AML_OFFSET(address.specific_flags), 285 4}, 286 287 {ACPI_RSC_1BITFLAG, 288 ACPI_RS_OFFSET(data.address.info.io.translation_type), 289 AML_OFFSET(address.specific_flags), 290 5} 291 }; 292 293 /******************************************************************************* 294 * 295 * FUNCTION: acpi_rs_get_address_common 296 * 297 * PARAMETERS: resource - Pointer to the internal resource struct 298 * aml - Pointer to the AML resource descriptor 299 * 300 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise 301 * 302 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor 303 * to an internal resource descriptor 304 * 305 ******************************************************************************/ 306 307 u8 308 acpi_rs_get_address_common(struct acpi_resource *resource, 309 union aml_resource *aml) 310 { 311 ACPI_FUNCTION_ENTRY(); 312 313 /* Validate the Resource Type */ 314 315 if ((aml->address.resource_type > 2) && 316 (aml->address.resource_type < 0xC0)) { 317 return (FALSE); 318 } 319 320 /* Get the Resource Type and General Flags */ 321 322 (void)acpi_rs_convert_aml_to_resource(resource, aml, 323 acpi_rs_convert_general_flags); 324 325 /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ 326 327 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 328 (void)acpi_rs_convert_aml_to_resource(resource, aml, 329 acpi_rs_convert_mem_flags); 330 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 331 (void)acpi_rs_convert_aml_to_resource(resource, aml, 332 acpi_rs_convert_io_flags); 333 } else { 334 /* Generic resource type, just grab the type_specific byte */ 335 336 resource->data.address.info.type_specific = 337 aml->address.specific_flags; 338 } 339 340 return (TRUE); 341 } 342 343 /******************************************************************************* 344 * 345 * FUNCTION: acpi_rs_set_address_common 346 * 347 * PARAMETERS: aml - Pointer to the AML resource descriptor 348 * resource - Pointer to the internal resource struct 349 * 350 * RETURN: None 351 * 352 * DESCRIPTION: Convert common flag fields from a resource descriptor to an 353 * AML descriptor 354 * 355 ******************************************************************************/ 356 357 void 358 acpi_rs_set_address_common(union aml_resource *aml, 359 struct acpi_resource *resource) 360 { 361 ACPI_FUNCTION_ENTRY(); 362 363 /* Set the Resource Type and General Flags */ 364 365 (void)acpi_rs_convert_resource_to_aml(resource, aml, 366 acpi_rs_convert_general_flags); 367 368 /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ 369 370 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 371 (void)acpi_rs_convert_resource_to_aml(resource, aml, 372 acpi_rs_convert_mem_flags); 373 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 374 (void)acpi_rs_convert_resource_to_aml(resource, aml, 375 acpi_rs_convert_io_flags); 376 } else { 377 /* Generic resource type, just copy the type_specific byte */ 378 379 aml->address.specific_flags = 380 resource->data.address.info.type_specific; 381 } 382 } 383