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-rw-r--r--drivers/acpi/resources/rscreate.c231
1 files changed, 114 insertions, 117 deletions
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 0911526b7ad8..8c128dea3252 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -5,7 +5,7 @@
5 ******************************************************************************/ 5 ******************************************************************************/
6 6
7/* 7/*
8 * Copyright (C) 2000 - 2005, R. Byron Moore 8 * Copyright (C) 2000 - 2006, R. Byron Moore
9 * All rights reserved. 9 * All rights reserved.
10 * 10 *
11 * Redistribution and use in source and binary forms, with or without 11 * Redistribution and use in source and binary forms, with or without
@@ -53,10 +53,10 @@ ACPI_MODULE_NAME("rscreate")
53 * 53 *
54 * FUNCTION: acpi_rs_create_resource_list 54 * FUNCTION: acpi_rs_create_resource_list
55 * 55 *
56 * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream 56 * PARAMETERS: aml_buffer - Pointer to the resource byte stream
57 * output_buffer - Pointer to the user's buffer 57 * output_buffer - Pointer to the user's buffer
58 * 58 *
59 * RETURN: Status - AE_OK if okay, else a valid acpi_status code 59 * RETURN: Status: AE_OK if okay, else a valid acpi_status code
60 * If output_buffer is not large enough, output_buffer_length 60 * If output_buffer is not large enough, output_buffer_length
61 * indicates how large output_buffer should be, else it 61 * indicates how large output_buffer should be, else it
62 * indicates how may u8 elements of output_buffer are valid. 62 * indicates how may u8 elements of output_buffer are valid.
@@ -67,33 +67,30 @@ ACPI_MODULE_NAME("rscreate")
67 * 67 *
68 ******************************************************************************/ 68 ******************************************************************************/
69acpi_status 69acpi_status
70acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer, 70acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
71 struct acpi_buffer *output_buffer) 71 struct acpi_buffer *output_buffer)
72{ 72{
73 73
74 acpi_status status; 74 acpi_status status;
75 u8 *byte_stream_start; 75 u8 *aml_start;
76 acpi_size list_size_needed = 0; 76 acpi_size list_size_needed = 0;
77 u32 byte_stream_buffer_length; 77 u32 aml_buffer_length;
78 78
79 ACPI_FUNCTION_TRACE("rs_create_resource_list"); 79 ACPI_FUNCTION_TRACE("rs_create_resource_list");
80 80
81 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_buffer = %p\n", 81 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer));
82 byte_stream_buffer));
83 82
84 /* Params already validated, so we don't re-validate here */ 83 /* Params already validated, so we don't re-validate here */
85 84
86 byte_stream_buffer_length = byte_stream_buffer->buffer.length; 85 aml_buffer_length = aml_buffer->buffer.length;
87 byte_stream_start = byte_stream_buffer->buffer.pointer; 86 aml_start = aml_buffer->buffer.pointer;
88 87
89 /* 88 /*
90 * Pass the byte_stream_buffer into a module that can calculate 89 * Pass the aml_buffer into a module that can calculate
91 * the buffer size needed for the linked list 90 * the buffer size needed for the linked list
92 */ 91 */
93 status = 92 status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
94 acpi_rs_get_list_length(byte_stream_start, 93 &list_size_needed);
95 byte_stream_buffer_length,
96 &list_size_needed);
97 94
98 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n", 95 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n",
99 status, (u32) list_size_needed)); 96 status, (u32) list_size_needed));
@@ -110,10 +107,8 @@ acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer,
110 107
111 /* Do the conversion */ 108 /* Do the conversion */
112 109
113 status = 110 status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length,
114 acpi_rs_byte_stream_to_list(byte_stream_start, 111 output_buffer->pointer);
115 byte_stream_buffer_length,
116 output_buffer->pointer);
117 if (ACPI_FAILURE(status)) { 112 if (ACPI_FAILURE(status)) {
118 return_ACPI_STATUS(status); 113 return_ACPI_STATUS(status);
119 } 114 }
@@ -212,21 +207,20 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
212 /* Each element of the top-level package must also be a package */ 207 /* Each element of the top-level package must also be a package */
213 208
214 if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { 209 if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) {
215 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 210 ACPI_ERROR((AE_INFO,
216 "(PRT[%X]) Need sub-package, found %s\n", 211 "(PRT[%X]) Need sub-package, found %s",
217 index, 212 index,
218 acpi_ut_get_object_type_name 213 acpi_ut_get_object_type_name
219 (*top_object_list))); 214 (*top_object_list)));
220 return_ACPI_STATUS(AE_AML_OPERAND_TYPE); 215 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
221 } 216 }
222 217
223 /* Each sub-package must be of length 4 */ 218 /* Each sub-package must be of length 4 */
224 219
225 if ((*top_object_list)->package.count != 4) { 220 if ((*top_object_list)->package.count != 4) {
226 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 221 ACPI_ERROR((AE_INFO,
227 "(PRT[%X]) Need package of length 4, found length %d\n", 222 "(PRT[%X]) Need package of length 4, found length %d",
228 index, 223 index, (*top_object_list)->package.count));
229 (*top_object_list)->package.count));
230 return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); 224 return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
231 } 225 }
232 226
@@ -243,11 +237,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
243 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { 237 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
244 user_prt->address = obj_desc->integer.value; 238 user_prt->address = obj_desc->integer.value;
245 } else { 239 } else {
246 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 240 ACPI_ERROR((AE_INFO,
247 "(PRT[%X].Address) Need Integer, found %s\n", 241 "(PRT[%X].Address) Need Integer, found %s",
248 index, 242 index,
249 acpi_ut_get_object_type_name 243 acpi_ut_get_object_type_name(obj_desc)));
250 (obj_desc)));
251 return_ACPI_STATUS(AE_BAD_DATA); 244 return_ACPI_STATUS(AE_BAD_DATA);
252 } 245 }
253 246
@@ -257,76 +250,83 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
257 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { 250 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
258 user_prt->pin = (u32) obj_desc->integer.value; 251 user_prt->pin = (u32) obj_desc->integer.value;
259 } else { 252 } else {
260 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 253 ACPI_ERROR((AE_INFO,
261 "(PRT[%X].Pin) Need Integer, found %s\n", 254 "(PRT[%X].Pin) Need Integer, found %s",
262 index, 255 index,
263 acpi_ut_get_object_type_name 256 acpi_ut_get_object_type_name(obj_desc)));
264 (obj_desc)));
265 return_ACPI_STATUS(AE_BAD_DATA); 257 return_ACPI_STATUS(AE_BAD_DATA);
266 } 258 }
267 259
268 /* 3) Third subobject: Dereference the PRT.source_name */ 260 /*
269 261 * 3) Third subobject: Dereference the PRT.source_name
262 * The name may be unresolved (slack mode), so allow a null object
263 */
270 obj_desc = sub_object_list[2]; 264 obj_desc = sub_object_list[2];
271 switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { 265 if (obj_desc) {
272 case ACPI_TYPE_LOCAL_REFERENCE: 266 switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
273 267 case ACPI_TYPE_LOCAL_REFERENCE:
274 if (obj_desc->reference.opcode != AML_INT_NAMEPATH_OP) { 268
275 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 269 if (obj_desc->reference.opcode !=
276 "(PRT[%X].Source) Need name, found reference op %X\n", 270 AML_INT_NAMEPATH_OP) {
277 index, 271 ACPI_ERROR((AE_INFO,
278 obj_desc->reference.opcode)); 272 "(PRT[%X].Source) Need name, found reference op %X",
273 index,
274 obj_desc->reference.
275 opcode));
276 return_ACPI_STATUS(AE_BAD_DATA);
277 }
278
279 node = obj_desc->reference.node;
280
281 /* Use *remaining* length of the buffer as max for pathname */
282
283 path_buffer.length = output_buffer->length -
284 (u32) ((u8 *) user_prt->source -
285 (u8 *) output_buffer->pointer);
286 path_buffer.pointer = user_prt->source;
287
288 status =
289 acpi_ns_handle_to_pathname((acpi_handle)
290 node,
291 &path_buffer);
292
293 /* +1 to include null terminator */
294
295 user_prt->length +=
296 (u32) ACPI_STRLEN(user_prt->source) + 1;
297 break;
298
299 case ACPI_TYPE_STRING:
300
301 ACPI_STRCPY(user_prt->source,
302 obj_desc->string.pointer);
303
304 /*
305 * Add to the Length field the length of the string
306 * (add 1 for terminator)
307 */
308 user_prt->length += obj_desc->string.length + 1;
309 break;
310
311 case ACPI_TYPE_INTEGER:
312 /*
313 * If this is a number, then the Source Name is NULL, since the
314 * entire buffer was zeroed out, we can leave this alone.
315 *
316 * Add to the Length field the length of the u32 NULL
317 */
318 user_prt->length += sizeof(u32);
319 break;
320
321 default:
322
323 ACPI_ERROR((AE_INFO,
324 "(PRT[%X].Source) Need Ref/String/Integer, found %s",
325 index,
326 acpi_ut_get_object_type_name
327 (obj_desc)));
279 return_ACPI_STATUS(AE_BAD_DATA); 328 return_ACPI_STATUS(AE_BAD_DATA);
280 } 329 }
281
282 node = obj_desc->reference.node;
283
284 /* Use *remaining* length of the buffer as max for pathname */
285
286 path_buffer.length = output_buffer->length -
287 (u32) ((u8 *) user_prt->source -
288 (u8 *) output_buffer->pointer);
289 path_buffer.pointer = user_prt->source;
290
291 status =
292 acpi_ns_handle_to_pathname((acpi_handle) node,
293 &path_buffer);
294
295 /* +1 to include null terminator */
296
297 user_prt->length +=
298 (u32) ACPI_STRLEN(user_prt->source) + 1;
299 break;
300
301 case ACPI_TYPE_STRING:
302
303 ACPI_STRCPY(user_prt->source, obj_desc->string.pointer);
304
305 /*
306 * Add to the Length field the length of the string
307 * (add 1 for terminator)
308 */
309 user_prt->length += obj_desc->string.length + 1;
310 break;
311
312 case ACPI_TYPE_INTEGER:
313 /*
314 * If this is a number, then the Source Name is NULL, since the
315 * entire buffer was zeroed out, we can leave this alone.
316 *
317 * Add to the Length field the length of the u32 NULL
318 */
319 user_prt->length += sizeof(u32);
320 break;
321
322 default:
323
324 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
325 "(PRT[%X].Source) Need Ref/String/Integer, found %s\n",
326 index,
327 acpi_ut_get_object_type_name
328 (obj_desc)));
329 return_ACPI_STATUS(AE_BAD_DATA);
330 } 330 }
331 331
332 /* Now align the current length */ 332 /* Now align the current length */
@@ -340,11 +340,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
340 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { 340 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
341 user_prt->source_index = (u32) obj_desc->integer.value; 341 user_prt->source_index = (u32) obj_desc->integer.value;
342 } else { 342 } else {
343 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 343 ACPI_ERROR((AE_INFO,
344 "(PRT[%X].source_index) Need Integer, found %s\n", 344 "(PRT[%X].source_index) Need Integer, found %s",
345 index, 345 index,
346 acpi_ut_get_object_type_name 346 acpi_ut_get_object_type_name(obj_desc)));
347 (obj_desc)));
348 return_ACPI_STATUS(AE_BAD_DATA); 347 return_ACPI_STATUS(AE_BAD_DATA);
349 } 348 }
350 349
@@ -360,7 +359,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
360 359
361/******************************************************************************* 360/*******************************************************************************
362 * 361 *
363 * FUNCTION: acpi_rs_create_byte_stream 362 * FUNCTION: acpi_rs_create_aml_resources
364 * 363 *
365 * PARAMETERS: linked_list_buffer - Pointer to the resource linked list 364 * PARAMETERS: linked_list_buffer - Pointer to the resource linked list
366 * output_buffer - Pointer to the user's buffer 365 * output_buffer - Pointer to the user's buffer
@@ -377,13 +376,13 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
377 ******************************************************************************/ 376 ******************************************************************************/
378 377
379acpi_status 378acpi_status
380acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, 379acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
381 struct acpi_buffer *output_buffer) 380 struct acpi_buffer *output_buffer)
382{ 381{
383 acpi_status status; 382 acpi_status status;
384 acpi_size byte_stream_size_needed = 0; 383 acpi_size aml_size_needed = 0;
385 384
386 ACPI_FUNCTION_TRACE("rs_create_byte_stream"); 385 ACPI_FUNCTION_TRACE("rs_create_aml_resources");
387 386
388 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n", 387 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n",
389 linked_list_buffer)); 388 linked_list_buffer));
@@ -394,11 +393,10 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
394 * Pass the linked_list_buffer into a module that calculates 393 * Pass the linked_list_buffer into a module that calculates
395 * the buffer size needed for the byte stream. 394 * the buffer size needed for the byte stream.
396 */ 395 */
397 status = acpi_rs_get_byte_stream_length(linked_list_buffer, 396 status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
398 &byte_stream_size_needed);
399 397
400 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_size_needed=%X, %s\n", 398 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n",
401 (u32) byte_stream_size_needed, 399 (u32) aml_size_needed,
402 acpi_format_exception(status))); 400 acpi_format_exception(status)));
403 if (ACPI_FAILURE(status)) { 401 if (ACPI_FAILURE(status)) {
404 return_ACPI_STATUS(status); 402 return_ACPI_STATUS(status);
@@ -406,8 +404,7 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
406 404
407 /* Validate/Allocate/Clear caller buffer */ 405 /* Validate/Allocate/Clear caller buffer */
408 406
409 status = 407 status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
410 acpi_ut_initialize_buffer(output_buffer, byte_stream_size_needed);
411 if (ACPI_FAILURE(status)) { 408 if (ACPI_FAILURE(status)) {
412 return_ACPI_STATUS(status); 409 return_ACPI_STATUS(status);
413 } 410 }
@@ -415,9 +412,9 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
415 /* Do the conversion */ 412 /* Do the conversion */
416 413
417 status = 414 status =
418 acpi_rs_list_to_byte_stream(linked_list_buffer, 415 acpi_rs_convert_resources_to_aml(linked_list_buffer,
419 byte_stream_size_needed, 416 aml_size_needed,
420 output_buffer->pointer); 417 output_buffer->pointer);
421 if (ACPI_FAILURE(status)) { 418 if (ACPI_FAILURE(status)) {
422 return_ACPI_STATUS(status); 419 return_ACPI_STATUS(status);
423 } 420 }
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-08 14:16:48 -0500