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-rw-r--r--drivers/acpi/resources/rsaddr.c745
1 files changed, 198 insertions, 547 deletions
diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c
index 6f48ebf3304e..4ac942badbc0 100644
--- a/drivers/acpi/resources/rsaddr.c
+++ b/drivers/acpi/resources/rsaddr.c
@@ -47,683 +47,334 @@
47#define _COMPONENT ACPI_RESOURCES 47#define _COMPONENT ACPI_RESOURCES
48ACPI_MODULE_NAME("rsaddr") 48ACPI_MODULE_NAME("rsaddr")
49 49
50/* Local prototypes */
51static void
52acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags);
53
54static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource);
55
56static void
57acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags);
58
59static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource);
60
61static void
62acpi_rs_set_address_common(union aml_resource *aml,
63 struct acpi_resource *resource);
64
65static u8
66acpi_rs_get_address_common(struct acpi_resource *resource,
67 union aml_resource *aml);
68
69/*******************************************************************************
70 *
71 * FUNCTION: acpi_rs_decode_general_flags
72 *
73 * PARAMETERS: Resource - Address resource data struct
74 * Flags - Raw AML flag byte
75 *
76 * RETURN: Decoded flag bits in resource struct
77 *
78 * DESCRIPTION: Decode a general flag byte to an address resource struct
79 *
80 ******************************************************************************/
81
82static void
83acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags)
84{
85 ACPI_FUNCTION_ENTRY();
86
87 /* Producer / Consumer - flag bit[0] */
88
89 resource->address.producer_consumer = (u32) (flags & 0x01);
90
91 /* Decode (_DEC) - flag bit[1] */
92
93 resource->address.decode = (u32) ((flags >> 1) & 0x01);
94
95 /* Min Address Fixed (_MIF) - flag bit[2] */
96
97 resource->address.min_address_fixed = (u32) ((flags >> 2) & 0x01);
98
99 /* Max Address Fixed (_MAF) - flag bit[3] */
100
101 resource->address.max_address_fixed = (u32) ((flags >> 3) & 0x01);
102}
103
104/*******************************************************************************
105 *
106 * FUNCTION: acpi_rs_encode_general_flags
107 *
108 * PARAMETERS: Resource - Address resource data struct
109 *
110 * RETURN: Encoded general flag byte
111 *
112 * DESCRIPTION: Construct a general flag byte from an address resource struct
113 *
114 ******************************************************************************/
115
116static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource)
117{
118 ACPI_FUNCTION_ENTRY();
119
120 return ((u8)
121
122 /* Producer / Consumer - flag bit[0] */
123 ((resource->address.producer_consumer & 0x01) |
124 /* Decode (_DEC) - flag bit[1] */
125 ((resource->address.decode & 0x01) << 1) |
126 /* Min Address Fixed (_MIF) - flag bit[2] */
127 ((resource->address.min_address_fixed & 0x01) << 2) |
128 /* Max Address Fixed (_MAF) - flag bit[3] */
129 ((resource->address.max_address_fixed & 0x01) << 3))
130 );
131}
132
133/******************************************************************************* 50/*******************************************************************************
134 * 51 *
135 * FUNCTION: acpi_rs_decode_specific_flags 52 * acpi_rs_convert_address16 - All WORD (16-bit) address resources
136 *
137 * PARAMETERS: Resource - Address resource data struct
138 * Flags - Raw AML flag byte
139 *
140 * RETURN: Decoded flag bits in attribute struct
141 *
142 * DESCRIPTION: Decode a type-specific flag byte to an attribute struct.
143 * Type-specific flags are only defined for the Memory and IO
144 * resource types.
145 * 53 *
146 ******************************************************************************/ 54 ******************************************************************************/
55struct acpi_rsconvert_info acpi_rs_convert_address16[5] = {
56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16,
57 ACPI_RS_SIZE(struct acpi_resource_address16),
58 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)},
147 59
148static void 60 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16,
149acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags) 61 sizeof(struct aml_resource_address16),
150{ 62 0},
151 ACPI_FUNCTION_ENTRY();
152
153 if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
154 /* Write Status (_RW) - flag bit[0] */
155
156 resource->address.attribute.memory.read_write_attribute =
157 (u16) (flags & 0x01);
158 63
159 /* Memory Attributes (_MEM) - flag bits[2:1] */ 64 /* Resource Type, General Flags, and Type-Specific Flags */
160 65
161 resource->address.attribute.memory.cache_attribute = 66 {ACPI_RSC_ADDRESS, 0, 0, 0},
162 (u16) ((flags >> 1) & 0x03);
163 } else if (resource->address.resource_type == ACPI_IO_RANGE) {
164 /* Ranges (_RNG) - flag bits[1:0] */
165
166 resource->address.attribute.io.range_attribute =
167 (u16) (flags & 0x03);
168
169 /* Translations (_TTP and _TRS) - flag bits[5:4] */
170
171 resource->address.attribute.io.translation_attribute =
172 (u16) ((flags >> 4) & 0x03);
173 }
174}
175
176/*******************************************************************************
177 *
178 * FUNCTION: acpi_rs_encode_specific_flags
179 *
180 * PARAMETERS: Resource - Address resource data struct
181 *
182 * RETURN: Encoded type-specific flag byte
183 *
184 * DESCRIPTION: Construct a type-specific flag byte from an attribute struct.
185 * Type-specific flags are only defined for the Memory and IO
186 * resource types.
187 *
188 ******************************************************************************/
189
190static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource)
191{
192 ACPI_FUNCTION_ENTRY();
193
194 if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
195 return ((u8)
196
197 /* Write Status (_RW) - flag bit[0] */
198 ((resource->address.attribute.memory.
199 read_write_attribute & 0x01) |
200 /* Memory Attributes (_MEM) - flag bits[2:1] */
201 ((resource->address.attribute.memory.
202 cache_attribute & 0x03) << 1)));
203 } else if (resource->address.resource_type == ACPI_IO_RANGE) {
204 return ((u8)
205
206 /* Ranges (_RNG) - flag bits[1:0] */
207 ((resource->address.attribute.io.
208 range_attribute & 0x03) |
209 /* Translations (_TTP and _TRS) - flag bits[5:4] */
210 ((resource->address.attribute.io.
211 translation_attribute & 0x03) << 4)));
212 }
213
214 return (0);
215}
216
217/*******************************************************************************
218 *
219 * FUNCTION: acpi_rs_set_address_common
220 *
221 * PARAMETERS: Aml - Pointer to the AML resource descriptor
222 * Resource - Pointer to the internal resource struct
223 *
224 * RETURN: None
225 *
226 * DESCRIPTION: Convert common flag fields from a resource descriptor to an
227 * AML descriptor
228 *
229 ******************************************************************************/
230
231static void
232acpi_rs_set_address_common(union aml_resource *aml,
233 struct acpi_resource *resource)
234{
235 ACPI_FUNCTION_ENTRY();
236
237 /* Set the Resource Type (Memory, Io, bus_number, etc.) */
238
239 aml->address.resource_type = (u8) resource->data.address.resource_type;
240
241 /* Set the general flags */
242
243 aml->address.flags = acpi_rs_encode_general_flags(&resource->data);
244
245 /* Set the type-specific flags */
246
247 aml->address.specific_flags =
248 acpi_rs_encode_specific_flags(&resource->data);
249}
250
251/*******************************************************************************
252 *
253 * FUNCTION: acpi_rs_get_address_common
254 *
255 * PARAMETERS: Resource - Pointer to the internal resource struct
256 * Aml - Pointer to the AML resource descriptor
257 *
258 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
259 *
260 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
261 * to an internal resource descriptor
262 *
263 ******************************************************************************/
264
265static u8
266acpi_rs_get_address_common(struct acpi_resource *resource,
267 union aml_resource *aml)
268{
269 ACPI_FUNCTION_ENTRY();
270
271 /* Validate resource type */
272
273 if ((aml->address.resource_type > 2)
274 && (aml->address.resource_type < 0xC0)) {
275 return (FALSE);
276 }
277
278 /* Get the Resource Type (Memory, Io, bus_number, etc.) */
279
280 resource->data.address.resource_type = aml->address.resource_type;
281
282 /* Get the General Flags */
283
284 acpi_rs_decode_general_flags(&resource->data, aml->address.flags);
285
286 /* Get the Type-Specific Flags */
287
288 acpi_rs_decode_specific_flags(&resource->data,
289 aml->address.specific_flags);
290 return (TRUE);
291}
292
293/*******************************************************************************
294 *
295 * FUNCTION: acpi_rs_get_address16
296 *
297 * PARAMETERS: Aml - Pointer to the AML resource descriptor
298 * aml_resource_length - Length of the resource from the AML header
299 * Resource - Where the internal resource is returned
300 *
301 * RETURN: Status
302 *
303 * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
304 * internal resource descriptor, simplifying bitflags and handling
305 * alignment and endian issues if necessary.
306 *
307 ******************************************************************************/
308
309acpi_status
310acpi_rs_get_address16(union aml_resource * aml,
311 u16 aml_resource_length, struct acpi_resource * resource)
312{
313 ACPI_FUNCTION_TRACE("rs_get_address16");
314
315 /* Get the Resource Type, general flags, and type-specific flags */
316
317 if (!acpi_rs_get_address_common(resource, aml)) {
318 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
319 }
320 67
321 /* 68 /*
322 * Get the following contiguous fields from the AML descriptor: 69 * These fields are contiguous in both the source and destination:
323 * Address Granularity 70 * Address Granularity
324 * Address Range Minimum 71 * Address Range Minimum
325 * Address Range Maximum 72 * Address Range Maximum
326 * Address Translation Offset 73 * Address Translation Offset
327 * Address Length 74 * Address Length
328 */ 75 */
329 acpi_rs_move_data(&resource->data.address16.granularity, 76 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity),
330 &aml->address16.granularity, 5, 77 AML_OFFSET(address16.granularity),
331 ACPI_MOVE_TYPE_16_TO_32); 78 5},
332
333 /* Get the optional resource_source (index and string) */
334
335 resource->length =
336 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16) +
337 acpi_rs_get_resource_source(aml_resource_length,
338 sizeof(struct aml_resource_address16),
339 &resource->data.address16.
340 resource_source, aml, NULL);
341 79
342 /* Complete the resource header */ 80 /* Optional resource_source (Index and String) */
343 81
344 resource->type = ACPI_RESOURCE_TYPE_ADDRESS16; 82 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source),
345 return_ACPI_STATUS(AE_OK); 83 0,
346} 84 sizeof(struct aml_resource_address16)}
85};
347 86
348/******************************************************************************* 87/*******************************************************************************
349 * 88 *
350 * FUNCTION: acpi_rs_set_address16 89 * acpi_rs_convert_address32 - All DWORD (32-bit) address resources
351 *
352 * PARAMETERS: Resource - Pointer to the resource descriptor
353 * Aml - Where the AML descriptor is returned
354 *
355 * RETURN: Status
356 *
357 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
358 * external AML resource descriptor.
359 * 90 *
360 ******************************************************************************/ 91 ******************************************************************************/
361 92
362acpi_status 93struct acpi_rsconvert_info acpi_rs_convert_address32[5] = {
363acpi_rs_set_address16(struct acpi_resource *resource, union aml_resource *aml) 94 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32,
364{ 95 ACPI_RS_SIZE(struct acpi_resource_address32),
365 acpi_size descriptor_length; 96 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)},
366 97
367 ACPI_FUNCTION_TRACE("rs_set_address16"); 98 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32,
99 sizeof(struct aml_resource_address32),
100 0},
368 101
369 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 102 /* Resource Type, General Flags, and Type-Specific Flags */
370 103
371 acpi_rs_set_address_common(aml, resource); 104 {ACPI_RSC_ADDRESS, 0, 0, 0},
372 105
373 /* 106 /*
374 * Set the following contiguous fields in the AML descriptor: 107 * These fields are contiguous in both the source and destination:
375 * Address Granularity 108 * Address Granularity
376 * Address Range Minimum 109 * Address Range Minimum
377 * Address Range Maximum 110 * Address Range Maximum
378 * Address Translation Offset 111 * Address Translation Offset
379 * Address Length 112 * Address Length
380 */ 113 */
381 acpi_rs_move_data(&aml->address16.granularity, 114 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity),
382 &resource->data.address16.granularity, 5, 115 AML_OFFSET(address32.granularity),
383 ACPI_MOVE_TYPE_32_TO_16); 116 5},
384
385 /* Resource Source Index and Resource Source are optional */
386 117
387 descriptor_length = acpi_rs_set_resource_source(aml, 118 /* Optional resource_source (Index and String) */
388 sizeof(struct
389 aml_resource_address16),
390 &resource->data.
391 address16.
392 resource_source);
393 119
394 /* Complete the AML descriptor header */ 120 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source),
395 121 0,
396 acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS16, 122 sizeof(struct aml_resource_address32)}
397 descriptor_length, aml); 123};
398 return_ACPI_STATUS(AE_OK);
399}
400 124
401/******************************************************************************* 125/*******************************************************************************
402 * 126 *
403 * FUNCTION: acpi_rs_get_address32 127 * acpi_rs_convert_address64 - All QWORD (64-bit) address resources
404 *
405 * PARAMETERS: Aml - Pointer to the AML resource descriptor
406 * aml_resource_length - Length of the resource from the AML header
407 * Resource - Where the internal resource is returned
408 *
409 * RETURN: Status
410 *
411 * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
412 * internal resource descriptor, simplifying bitflags and handling
413 * alignment and endian issues if necessary.
414 * 128 *
415 ******************************************************************************/ 129 ******************************************************************************/
416 130
417acpi_status 131struct acpi_rsconvert_info acpi_rs_convert_address64[5] = {
418acpi_rs_get_address32(union aml_resource *aml, 132 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64,
419 u16 aml_resource_length, struct acpi_resource *resource) 133 ACPI_RS_SIZE(struct acpi_resource_address64),
420{ 134 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)},
421 135
422 ACPI_FUNCTION_TRACE("rs_get_address32"); 136 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64,
137 sizeof(struct aml_resource_address64),
138 0},
423 139
424 /* Get the Resource Type, general flags, and type-specific flags */ 140 /* Resource Type, General Flags, and Type-Specific Flags */
425 141
426 if (!acpi_rs_get_address_common(resource, (void *)aml)) { 142 {ACPI_RSC_ADDRESS, 0, 0, 0},
427 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
428 }
429 143
430 /* 144 /*
431 * Get the following contiguous fields from the AML descriptor: 145 * These fields are contiguous in both the source and destination:
432 * Address Granularity 146 * Address Granularity
433 * Address Range Minimum 147 * Address Range Minimum
434 * Address Range Maximum 148 * Address Range Maximum
435 * Address Translation Offset 149 * Address Translation Offset
436 * Address Length 150 * Address Length
437 */ 151 */
438 acpi_rs_move_data(&resource->data.address32.granularity, 152 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity),
439 &aml->address32.granularity, 5, 153 AML_OFFSET(address64.granularity),
440 ACPI_MOVE_TYPE_32_TO_32); 154 5},
441 155
442 /* Get the optional resource_source (index and string) */ 156 /* Optional resource_source (Index and String) */
443 157
444 resource->length = 158 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source),
445 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32) + 159 0,
446 acpi_rs_get_resource_source(aml_resource_length, 160 sizeof(struct aml_resource_address64)}
447 sizeof(struct aml_resource_address32), 161};
448 &resource->data.address32.
449 resource_source, aml, NULL);
450
451 /* Complete the resource header */
452
453 resource->type = ACPI_RESOURCE_TYPE_ADDRESS32;
454 return_ACPI_STATUS(AE_OK);
455}
456 162
457/******************************************************************************* 163/*******************************************************************************
458 * 164 *
459 * FUNCTION: acpi_rs_set_address32 165 * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources
460 *
461 * PARAMETERS: Resource - Pointer to the resource descriptor
462 * Aml - Where the AML descriptor is returned
463 *
464 * RETURN: Status
465 *
466 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
467 * external AML resource descriptor.
468 * 166 *
469 ******************************************************************************/ 167 ******************************************************************************/
470 168
471acpi_status 169struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = {
472acpi_rs_set_address32(struct acpi_resource *resource, union aml_resource *aml) 170 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64,
473{ 171 ACPI_RS_SIZE(struct acpi_resource_extended_address64),
474 acpi_size descriptor_length; 172 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)},
173
174 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
175 sizeof(struct aml_resource_extended_address64),
176 0},
475 177
476 ACPI_FUNCTION_TRACE("rs_set_address32"); 178 /* Resource Type, General Flags, and Type-Specific Flags */
477 179
478 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 180 {ACPI_RSC_ADDRESS, 0, 0, 0},
479 181
480 acpi_rs_set_address_common(aml, resource); 182 /* Revision ID */
481 183
184 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD),
185 AML_OFFSET(ext_address64.revision_iD),
186 1},
482 /* 187 /*
483 * Set the following contiguous fields in the AML descriptor: 188 * These fields are contiguous in both the source and destination:
484 * Address Granularity 189 * Address Granularity
485 * Address Range Minimum 190 * Address Range Minimum
486 * Address Range Maximum 191 * Address Range Maximum
487 * Address Translation Offset 192 * Address Translation Offset
488 * Address Length 193 * Address Length
194 * Type-Specific Attribute
489 */ 195 */
490 acpi_rs_move_data(&aml->address32.granularity, 196 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity),
491 &resource->data.address32.granularity, 5, 197 AML_OFFSET(ext_address64.granularity),
492 ACPI_MOVE_TYPE_32_TO_32); 198 6}
493 199};
494 /* Resource Source Index and Resource Source are optional */
495
496 descriptor_length = acpi_rs_set_resource_source(aml,
497 sizeof(struct
498 aml_resource_address32),
499 &resource->data.
500 address32.
501 resource_source);
502
503 /* Complete the AML descriptor header */
504
505 acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS32,
506 descriptor_length, aml);
507 return_ACPI_STATUS(AE_OK);
508}
509 200
510/******************************************************************************* 201/*******************************************************************************
511 * 202 *
512 * FUNCTION: acpi_rs_get_address64 203 * acpi_rs_convert_general_flags - Flags common to all address descriptors
513 *
514 * PARAMETERS: Aml - Pointer to the AML resource descriptor
515 * aml_resource_length - Length of the resource from the AML header
516 * Resource - Where the internal resource is returned
517 *
518 * RETURN: Status
519 *
520 * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
521 * internal resource descriptor, simplifying bitflags and handling
522 * alignment and endian issues if necessary.
523 * 204 *
524 ******************************************************************************/ 205 ******************************************************************************/
525 206
526acpi_status 207static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = {
527acpi_rs_get_address64(union aml_resource *aml, 208 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags),
528 u16 aml_resource_length, struct acpi_resource *resource) 209 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)},
529{
530 ACPI_FUNCTION_TRACE("rs_get_address64");
531 210
532 /* Get the Resource Type, general Flags, and type-specific Flags */ 211 /* Resource Type (Memory, Io, bus_number, etc.) */
533 212
534 if (!acpi_rs_get_address_common(resource, aml)) { 213 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type),
535 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); 214 AML_OFFSET(address.resource_type),
536 } 215 1},
537 216
538 /* 217 /* General Flags - Consume, Decode, min_fixed, max_fixed */
539 * Get the following contiguous fields from the AML descriptor:
540 * Address Granularity
541 * Address Range Minimum
542 * Address Range Maximum
543 * Address Translation Offset
544 * Address Length
545 */
546 acpi_rs_move_data(&resource->data.address64.granularity,
547 &aml->address64.granularity, 5,
548 ACPI_MOVE_TYPE_64_TO_64);
549 218
550 /* Get the optional resource_source (index and string) */ 219 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer),
220 AML_OFFSET(address.flags),
221 0},
551 222
552 resource->length = 223 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode),
553 ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64) + 224 AML_OFFSET(address.flags),
554 acpi_rs_get_resource_source(aml_resource_length, 225 1},
555 sizeof(struct aml_resource_address64),
556 &resource->data.address64.
557 resource_source, aml, NULL);
558 226
559 /* Complete the resource header */ 227 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed),
228 AML_OFFSET(address.flags),
229 2},
560 230
561 resource->type = ACPI_RESOURCE_TYPE_ADDRESS64; 231 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed),
562 return_ACPI_STATUS(AE_OK); 232 AML_OFFSET(address.flags),
563} 233 3}
234};
564 235
565/******************************************************************************* 236/*******************************************************************************
566 * 237 *
567 * FUNCTION: acpi_rs_set_address64 238 * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors
568 *
569 * PARAMETERS: Resource - Pointer to the resource descriptor
570 * Aml - Where the AML descriptor is returned
571 *
572 * RETURN: Status
573 *
574 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
575 * external AML resource descriptor.
576 * 239 *
577 ******************************************************************************/ 240 ******************************************************************************/
578 241
579acpi_status 242static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = {
580acpi_rs_set_address64(struct acpi_resource *resource, union aml_resource *aml) 243 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
581{ 244 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)},
582 acpi_size descriptor_length;
583 245
584 ACPI_FUNCTION_TRACE("rs_set_address64"); 246 /* Memory-specific flags */
585 247
586 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 248 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect),
249 AML_OFFSET(address.specific_flags),
250 0},
587 251
588 acpi_rs_set_address_common(aml, resource); 252 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching),
253 AML_OFFSET(address.specific_flags),
254 1},
589 255
590 /* 256 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type),
591 * Set the following contiguous fields in the AML descriptor: 257 AML_OFFSET(address.specific_flags),
592 * Address Granularity 258 3},
593 * Address Range Minimum 259
594 * Address Range Maximum 260 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation),
595 * Address Translation Offset 261 AML_OFFSET(address.specific_flags),
596 * Address Length 262 5}
597 */ 263};
598 acpi_rs_move_data(&aml->address64.granularity, 264
599 &resource->data.address64.granularity, 5, 265/*******************************************************************************
600 ACPI_MOVE_TYPE_64_TO_64); 266 *
267 * acpi_rs_convert_io_flags - Flags common to I/O address descriptors
268 *
269 ******************************************************************************/
601 270
602 /* Resource Source Index and Resource Source are optional */ 271static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = {
272 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
273 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)},
603 274
604 descriptor_length = acpi_rs_set_resource_source(aml, 275 /* I/O-specific flags */
605 sizeof(struct
606 aml_resource_address64),
607 &resource->data.
608 address64.
609 resource_source);
610 276
611 /* Complete the AML descriptor header */ 277 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type),
278 AML_OFFSET(address.specific_flags),
279 0},
612 280
613 acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS64, 281 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation),
614 descriptor_length, aml); 282 AML_OFFSET(address.specific_flags),
615 return_ACPI_STATUS(AE_OK); 283 4},
616} 284
285 {ACPI_RSC_1BITFLAG,
286 ACPI_RS_OFFSET(data.address.info.io.translation_type),
287 AML_OFFSET(address.specific_flags),
288 5}
289};
617 290
618/******************************************************************************* 291/*******************************************************************************
619 * 292 *
620 * FUNCTION: acpi_rs_get_ext_address64 293 * FUNCTION: acpi_rs_get_address_common
621 * 294 *
622 * PARAMETERS: Aml - Pointer to the AML resource descriptor 295 * PARAMETERS: Resource - Pointer to the internal resource struct
623 * aml_resource_length - Length of the resource from the AML header 296 * Aml - Pointer to the AML resource descriptor
624 * Resource - Where the internal resource is returned
625 * 297 *
626 * RETURN: Status 298 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
627 * 299 *
628 * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding 300 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
629 * internal resource descriptor, simplifying bitflags and handling 301 * to an internal resource descriptor
630 * alignment and endian issues if necessary.
631 * 302 *
632 ******************************************************************************/ 303 ******************************************************************************/
633 304
634acpi_status 305u8
635acpi_rs_get_ext_address64(union aml_resource *aml, 306acpi_rs_get_address_common(struct acpi_resource *resource,
636 u16 aml_resource_length, 307 union aml_resource *aml)
637 struct acpi_resource *resource)
638{ 308{
309 ACPI_FUNCTION_ENTRY();
639 310
640 ACPI_FUNCTION_TRACE("rs_get_ext_address64"); 311 /* Validate the Resource Type */
641
642 /* Get the Resource Type, general flags, and type-specific flags */
643 312
644 if (!acpi_rs_get_address_common(resource, aml)) { 313 if ((aml->address.resource_type > 2)
645 return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); 314 && (aml->address.resource_type < 0xC0)) {
315 return (FALSE);
646 } 316 }
647 317
648 /* 318 /* Get the Resource Type and General Flags */
649 * Get and validate the Revision ID
650 * Note: Only one revision ID is currently supported
651 */
652 resource->data.ext_address64.revision_iD =
653 aml->ext_address64.revision_iD;
654 if (aml->ext_address64.revision_iD !=
655 AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
656 return_ACPI_STATUS(AE_SUPPORT);
657 }
658 319
659 /* 320 (void)acpi_rs_convert_aml_to_resource(resource, aml,
660 * Get the following contiguous fields from the AML descriptor: 321 acpi_rs_convert_general_flags);
661 * Address Granularity 322
662 * Address Range Minimum 323 /* Get the Type-Specific Flags (Memory and I/O descriptors only) */
663 * Address Range Maximum
664 * Address Translation Offset
665 * Address Length
666 * Type-Specific Attribute
667 */
668 acpi_rs_move_data(&resource->data.ext_address64.granularity,
669 &aml->ext_address64.granularity, 6,
670 ACPI_MOVE_TYPE_64_TO_64);
671 324
672 /* Complete the resource header */ 325 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
326 (void)acpi_rs_convert_aml_to_resource(resource, aml,
327 acpi_rs_convert_mem_flags);
328 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
329 (void)acpi_rs_convert_aml_to_resource(resource, aml,
330 acpi_rs_convert_io_flags);
331 } else {
332 /* Generic resource type, just grab the type_specific byte */
673 333
674 resource->type = ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64; 334 resource->data.address.info.type_specific =
675 resource->length = 335 aml->address.specific_flags;
676 ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_address64); 336 }
677 return_ACPI_STATUS(AE_OK); 337
338 return (TRUE);
678} 339}
679 340
680/******************************************************************************* 341/*******************************************************************************
681 * 342 *
682 * FUNCTION: acpi_rs_set_ext_address64 343 * FUNCTION: acpi_rs_set_address_common
683 * 344 *
684 * PARAMETERS: Resource - Pointer to the resource descriptor 345 * PARAMETERS: Aml - Pointer to the AML resource descriptor
685 * Aml - Where the AML descriptor is returned 346 * Resource - Pointer to the internal resource struct
686 * 347 *
687 * RETURN: Status 348 * RETURN: None
688 * 349 *
689 * DESCRIPTION: Convert an internal resource descriptor to the corresponding 350 * DESCRIPTION: Convert common flag fields from a resource descriptor to an
690 * external AML resource descriptor. 351 * AML descriptor
691 * 352 *
692 ******************************************************************************/ 353 ******************************************************************************/
693 354
694acpi_status 355void
695acpi_rs_set_ext_address64(struct acpi_resource *resource, 356acpi_rs_set_address_common(union aml_resource *aml,
696 union aml_resource *aml) 357 struct acpi_resource *resource)
697{ 358{
698 ACPI_FUNCTION_TRACE("rs_set_ext_address64"); 359 ACPI_FUNCTION_ENTRY();
699 360
700 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 361 /* Set the Resource Type and General Flags */
701 362
702 acpi_rs_set_address_common(aml, resource); 363 (void)acpi_rs_convert_resource_to_aml(resource, aml,
364 acpi_rs_convert_general_flags);
703 365
704 /* Only one Revision ID is currently supported */ 366 /* Set the Type-Specific Flags (Memory and I/O descriptors only) */
705 367
706 aml->ext_address64.revision_iD = AML_RESOURCE_EXTENDED_ADDRESS_REVISION; 368 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
707 aml->ext_address64.reserved = 0; 369 (void)acpi_rs_convert_resource_to_aml(resource, aml,
370 acpi_rs_convert_mem_flags);
371 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
372 (void)acpi_rs_convert_resource_to_aml(resource, aml,
373 acpi_rs_convert_io_flags);
374 } else {
375 /* Generic resource type, just copy the type_specific byte */
708 376
709 /* 377 aml->address.specific_flags =
710 * Set the following contiguous fields in the AML descriptor: 378 resource->data.address.info.type_specific;
711 * Address Granularity 379 }
712 * Address Range Minimum
713 * Address Range Maximum
714 * Address Translation Offset
715 * Address Length
716 * Type-Specific Attribute
717 */
718 acpi_rs_move_data(&aml->ext_address64.granularity,
719 &resource->data.address64.granularity, 6,
720 ACPI_MOVE_TYPE_64_TO_64);
721
722 /* Complete the AML descriptor header */
723
724 acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
725 sizeof(struct
726 aml_resource_extended_address64),
727 aml);
728 return_ACPI_STATUS(AE_OK);
729} 380}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 21:16:07 -0500