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-rw-r--r--drivers/acpi/utilities/Makefile5
-rw-r--r--drivers/acpi/utilities/utmisc.c148
-rw-r--r--drivers/acpi/utilities/utresrc.c428
-rw-r--r--drivers/acpi/utilities/utstate.c2
-rw-r--r--drivers/acpi/utilities/utxface.c52
5 files changed, 470 insertions, 165 deletions
diff --git a/drivers/acpi/utilities/Makefile b/drivers/acpi/utilities/Makefile
index e87108b7338a..88eff14c4894 100644
--- a/drivers/acpi/utilities/Makefile
+++ b/drivers/acpi/utilities/Makefile
@@ -2,7 +2,8 @@
2# Makefile for all Linux ACPI interpreter subdirectories 2# Makefile for all Linux ACPI interpreter subdirectories
3# 3#
4 4
5obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ 5obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
6 utcopy.o utdelete.o utglobal.o utmath.o utobject.o utstate.o utmutex.o utobject.o utcache.o 6 utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
7 utstate.o utmutex.o utobject.o utcache.o utresrc.o
7 8
8EXTRA_CFLAGS += $(ACPI_CFLAGS) 9EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index e9058d4da122..2a9110c06391 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -43,7 +43,6 @@
43 43
44#include <acpi/acpi.h> 44#include <acpi/acpi.h>
45#include <acpi/acnamesp.h> 45#include <acpi/acnamesp.h>
46#include <acpi/amlresrc.h>
47 46
48#define _COMPONENT ACPI_UTILITIES 47#define _COMPONENT ACPI_UTILITIES
49ACPI_MODULE_NAME("utmisc") 48ACPI_MODULE_NAME("utmisc")
@@ -791,153 +790,6 @@ u8 acpi_ut_generate_checksum(u8 * buffer, u32 length)
791 790
792/******************************************************************************* 791/*******************************************************************************
793 * 792 *
794 * FUNCTION: acpi_ut_get_resource_type
795 *
796 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
797 *
798 * RETURN: The Resource Type with no extraneous bits (except the
799 * Large/Small descriptor bit -- this is left alone)
800 *
801 * DESCRIPTION: Extract the Resource Type/Name from the first byte of
802 * a resource descriptor.
803 *
804 ******************************************************************************/
805
806u8 acpi_ut_get_resource_type(void *aml)
807{
808 ACPI_FUNCTION_ENTRY();
809
810 /*
811 * Byte 0 contains the descriptor name (Resource Type)
812 * Determine if this is a small or large resource
813 */
814 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
815 /* Large Resource Type -- bits 6:0 contain the name */
816
817 return (*((u8 *) aml));
818 } else {
819 /* Small Resource Type -- bits 6:3 contain the name */
820
821 return ((u8) (*((u8 *) aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
822 }
823}
824
825/*******************************************************************************
826 *
827 * FUNCTION: acpi_ut_get_resource_length
828 *
829 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
830 *
831 * RETURN: Byte Length
832 *
833 * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
834 * definition, this does not include the size of the descriptor
835 * header or the length field itself.
836 *
837 ******************************************************************************/
838
839u16 acpi_ut_get_resource_length(void *aml)
840{
841 u16 resource_length;
842
843 ACPI_FUNCTION_ENTRY();
844
845 /*
846 * Byte 0 contains the descriptor name (Resource Type)
847 * Determine if this is a small or large resource
848 */
849 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
850 /* Large Resource type -- bytes 1-2 contain the 16-bit length */
851
852 ACPI_MOVE_16_TO_16(&resource_length, &((u8 *) aml)[1]);
853
854 } else {
855 /* Small Resource type -- bits 2:0 of byte 0 contain the length */
856
857 resource_length = (u16) (*((u8 *) aml) &
858 ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
859 }
860
861 return (resource_length);
862}
863
864/*******************************************************************************
865 *
866 * FUNCTION: acpi_ut_get_descriptor_length
867 *
868 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
869 *
870 * RETURN: Byte length
871 *
872 * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
873 * length of the descriptor header and the length field itself.
874 * Used to walk descriptor lists.
875 *
876 ******************************************************************************/
877
878u32 acpi_ut_get_descriptor_length(void *aml)
879{
880 u32 descriptor_length;
881
882 ACPI_FUNCTION_ENTRY();
883
884 /* First get the Resource Length (Does not include header length) */
885
886 descriptor_length = acpi_ut_get_resource_length(aml);
887
888 /* Determine if this is a small or large resource */
889
890 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
891 descriptor_length += sizeof(struct aml_resource_large_header);
892 } else {
893 descriptor_length += sizeof(struct aml_resource_small_header);
894 }
895
896 return (descriptor_length);
897}
898
899/*******************************************************************************
900 *
901 * FUNCTION: acpi_ut_get_resource_end_tag
902 *
903 * PARAMETERS: obj_desc - The resource template buffer object
904 *
905 * RETURN: Pointer to the end tag
906 *
907 * DESCRIPTION: Find the END_TAG resource descriptor in an AML resource template
908 *
909 ******************************************************************************/
910
911u8 *acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc)
912{
913 u8 *aml;
914 u8 *end_aml;
915
916 aml = obj_desc->buffer.pointer;
917 end_aml = aml + obj_desc->buffer.length;
918
919 /* Walk the resource template, one descriptor per loop */
920
921 while (aml < end_aml) {
922 if (acpi_ut_get_resource_type(aml) ==
923 ACPI_RESOURCE_NAME_END_TAG) {
924 /* Found the end_tag descriptor, all done */
925
926 return (aml);
927 }
928
929 /* Point to the next resource descriptor */
930
931 aml += acpi_ut_get_resource_length(aml);
932 }
933
934 /* End tag was not found */
935
936 return (NULL);
937}
938
939/*******************************************************************************
940 *
941 * FUNCTION: acpi_ut_report_error 793 * FUNCTION: acpi_ut_report_error
942 * 794 *
943 * PARAMETERS: module_name - Caller's module name (for error output) 795 * PARAMETERS: module_name - Caller's module name (for error output)
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c
new file mode 100644
index 000000000000..07a314c710d8
--- /dev/null
+++ b/drivers/acpi/utilities/utresrc.c
@@ -0,0 +1,428 @@
1/*******************************************************************************
2 *
3 * Module Name: utresrc - Resource managment utilities
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2005, R. Byron Moore
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 <acpi/amlresrc.h>
46
47#define _COMPONENT ACPI_UTILITIES
48ACPI_MODULE_NAME("utmisc")
49
50/*
51 * Base sizes of the raw AML resource descriptors, indexed by resource type.
52 * Zero indicates a reserved (and therefore invalid) resource type.
53 */
54const u8 acpi_gbl_resource_aml_sizes[] = {
55 /* Small descriptors */
56
57 0,
58 0,
59 0,
60 0,
61 ACPI_AML_SIZE_SMALL(struct aml_resource_irq),
62 ACPI_AML_SIZE_SMALL(struct aml_resource_dma),
63 ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent),
64 ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent),
65 ACPI_AML_SIZE_SMALL(struct aml_resource_io),
66 ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io),
67 0,
68 0,
69 0,
70 0,
71 ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small),
72 ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag),
73
74 /* Large descriptors */
75
76 0,
77 ACPI_AML_SIZE_LARGE(struct aml_resource_memory24),
78 ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register),
79 0,
80 ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large),
81 ACPI_AML_SIZE_LARGE(struct aml_resource_memory32),
82 ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32),
83 ACPI_AML_SIZE_LARGE(struct aml_resource_address32),
84 ACPI_AML_SIZE_LARGE(struct aml_resource_address16),
85 ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq),
86 ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
87 ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64)
88};
89
90/*
91 * Resource types, used to validate the resource length field.
92 * The length of fixed-length types must match exactly, variable
93 * lengths must meet the minimum required length, etc.
94 * Zero indicates a reserved (and therefore invalid) resource type.
95 */
96static const u8 acpi_gbl_resource_types[] = {
97 /* Small descriptors */
98
99 0,
100 0,
101 0,
102 0,
103 ACPI_SMALL_VARIABLE_LENGTH,
104 ACPI_FIXED_LENGTH,
105 ACPI_SMALL_VARIABLE_LENGTH,
106 ACPI_FIXED_LENGTH,
107 ACPI_FIXED_LENGTH,
108 ACPI_FIXED_LENGTH,
109 0,
110 0,
111 0,
112 0,
113 ACPI_VARIABLE_LENGTH,
114 ACPI_FIXED_LENGTH,
115
116 /* Large descriptors */
117
118 0,
119 ACPI_FIXED_LENGTH,
120 ACPI_FIXED_LENGTH,
121 0,
122 ACPI_VARIABLE_LENGTH,
123 ACPI_FIXED_LENGTH,
124 ACPI_FIXED_LENGTH,
125 ACPI_VARIABLE_LENGTH,
126 ACPI_VARIABLE_LENGTH,
127 ACPI_VARIABLE_LENGTH,
128 ACPI_VARIABLE_LENGTH,
129 ACPI_FIXED_LENGTH
130};
131
132/*******************************************************************************
133 *
134 * FUNCTION: acpi_ut_validate_resource
135 *
136 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
137 * return_index - Where the resource index is returned. NULL
138 * if the index is not required.
139 *
140 * RETURN: Status, and optionally the Index into the global resource tables
141 *
142 * DESCRIPTION: Validate an AML resource descriptor by checking the Resource
143 * Type and Resource Length. Returns an index into the global
144 * resource information/dispatch tables for later use.
145 *
146 ******************************************************************************/
147
148acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
149{
150 u8 resource_type;
151 u8 resource_index;
152 acpi_rs_length resource_length;
153 acpi_rs_length minimum_resource_length;
154
155 ACPI_FUNCTION_ENTRY();
156
157 /*
158 * 1) Validate the resource_type field (Byte 0)
159 */
160 resource_type = *((u8 *) aml);
161
162 /*
163 * Byte 0 contains the descriptor name (Resource Type)
164 * Examine the large/small bit in the resource header
165 */
166 if (resource_type & ACPI_RESOURCE_NAME_LARGE) {
167 /* Verify the large resource type (name) against the max */
168
169 if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) {
170 return (AE_AML_INVALID_RESOURCE_TYPE);
171 }
172
173 /*
174 * Large Resource Type -- bits 6:0 contain the name
175 * Translate range 0x80-0x8B to index range 0x10-0x1B
176 */
177 resource_index = (u8) (resource_type - 0x70);
178 } else {
179 /*
180 * Small Resource Type -- bits 6:3 contain the name
181 * Shift range to index range 0x00-0x0F
182 */
183 resource_index = (u8)
184 ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3);
185 }
186
187 /* Check validity of the resource type, zero indicates name is invalid */
188
189 if (!acpi_gbl_resource_types[resource_index]) {
190 return (AE_AML_INVALID_RESOURCE_TYPE);
191 }
192
193 /*
194 * 2) Validate the resource_length field. This ensures that the length
195 * is at least reasonable, and guarantees that it is non-zero.
196 */
197 resource_length = acpi_ut_get_resource_length(aml);
198 minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index];
199
200 /* Validate based upon the type of resource - fixed length or variable */
201
202 switch (acpi_gbl_resource_types[resource_index]) {
203 case ACPI_FIXED_LENGTH:
204
205 /* Fixed length resource, length must match exactly */
206
207 if (resource_length != minimum_resource_length) {
208 return (AE_AML_BAD_RESOURCE_LENGTH);
209 }
210 break;
211
212 case ACPI_VARIABLE_LENGTH:
213
214 /* Variable length resource, length must be at least the minimum */
215
216 if (resource_length < minimum_resource_length) {
217 return (AE_AML_BAD_RESOURCE_LENGTH);
218 }
219 break;
220
221 case ACPI_SMALL_VARIABLE_LENGTH:
222
223 /* Small variable length resource, length can be (Min) or (Min-1) */
224
225 if ((resource_length > minimum_resource_length) ||
226 (resource_length < (minimum_resource_length - 1))) {
227 return (AE_AML_BAD_RESOURCE_LENGTH);
228 }
229 break;
230
231 default:
232
233 /* Shouldn't happen (because of validation earlier), but be sure */
234
235 return (AE_AML_INVALID_RESOURCE_TYPE);
236 }
237
238 /* Optionally return the resource table index */
239
240 if (return_index) {
241 *return_index = resource_index;
242 }
243
244 return (AE_OK);
245}
246
247/*******************************************************************************
248 *
249 * FUNCTION: acpi_ut_get_resource_type
250 *
251 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
252 *
253 * RETURN: The Resource Type with no extraneous bits (except the
254 * Large/Small descriptor bit -- this is left alone)
255 *
256 * DESCRIPTION: Extract the Resource Type/Name from the first byte of
257 * a resource descriptor.
258 *
259 ******************************************************************************/
260
261u8 acpi_ut_get_resource_type(void *aml)
262{
263 ACPI_FUNCTION_ENTRY();
264
265 /*
266 * Byte 0 contains the descriptor name (Resource Type)
267 * Examine the large/small bit in the resource header
268 */
269 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
270 /* Large Resource Type -- bits 6:0 contain the name */
271
272 return (*((u8 *) aml));
273 } else {
274 /* Small Resource Type -- bits 6:3 contain the name */
275
276 return ((u8) (*((u8 *) aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
277 }
278}
279
280/*******************************************************************************
281 *
282 * FUNCTION: acpi_ut_get_resource_length
283 *
284 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
285 *
286 * RETURN: Byte Length
287 *
288 * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
289 * definition, this does not include the size of the descriptor
290 * header or the length field itself.
291 *
292 ******************************************************************************/
293
294u16 acpi_ut_get_resource_length(void *aml)
295{
296 acpi_rs_length resource_length;
297
298 ACPI_FUNCTION_ENTRY();
299
300 /*
301 * Byte 0 contains the descriptor name (Resource Type)
302 * Examine the large/small bit in the resource header
303 */
304 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
305 /* Large Resource type -- bytes 1-2 contain the 16-bit length */
306
307 ACPI_MOVE_16_TO_16(&resource_length, &((u8 *) aml)[1]);
308
309 } else {
310 /* Small Resource type -- bits 2:0 of byte 0 contain the length */
311
312 resource_length = (u16) (*((u8 *) aml) &
313 ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
314 }
315
316 return (resource_length);
317}
318
319/*******************************************************************************
320 *
321 * FUNCTION: acpi_ut_get_resource_header_length
322 *
323 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
324 *
325 * RETURN: Length of the AML header (depends on large/small descriptor)
326 *
327 * DESCRIPTION: Get the length of the header for this resource.
328 *
329 ******************************************************************************/
330
331u8 acpi_ut_get_resource_header_length(void *aml)
332{
333 ACPI_FUNCTION_ENTRY();
334
335 /* Examine the large/small bit in the resource header */
336
337 if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) {
338 return (sizeof(struct aml_resource_large_header));
339 } else {
340 return (sizeof(struct aml_resource_small_header));
341 }
342}
343
344/*******************************************************************************
345 *
346 * FUNCTION: acpi_ut_get_descriptor_length
347 *
348 * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
349 *
350 * RETURN: Byte length
351 *
352 * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
353 * length of the descriptor header and the length field itself.
354 * Used to walk descriptor lists.
355 *
356 ******************************************************************************/
357
358u32 acpi_ut_get_descriptor_length(void *aml)
359{
360 ACPI_FUNCTION_ENTRY();
361
362 /*
363 * Get the Resource Length (does not include header length) and add
364 * the header length (depends on if this is a small or large resource)
365 */
366 return (acpi_ut_get_resource_length(aml) +
367 acpi_ut_get_resource_header_length(aml));
368}
369
370/*******************************************************************************
371 *
372 * FUNCTION: acpi_ut_get_resource_end_tag
373 *
374 * PARAMETERS: obj_desc - The resource template buffer object
375 *
376 * RETURN: Pointer to the end tag
377 *
378 * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template
379 *
380 ******************************************************************************/
381
382acpi_status
383acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc,
384 u8 ** end_tag)
385{
386 acpi_status status;
387 u8 *aml;
388 u8 *end_aml;
389
390 ACPI_FUNCTION_TRACE("ut_get_resource_end_tag");
391
392 /* Get start and end pointers */
393
394 aml = obj_desc->buffer.pointer;
395 end_aml = aml + obj_desc->buffer.length;
396
397 /* Walk the resource template, one descriptor per iteration */
398
399 while (aml < end_aml) {
400 /* Validate the Resource Type and Resource Length */
401
402 status = acpi_ut_validate_resource(aml, NULL);
403 if (ACPI_FAILURE(status)) {
404 return_ACPI_STATUS(status);
405 }
406
407 /* end_tag resource indicates the end of the resource template */
408
409 if (acpi_ut_get_resource_type(aml) ==
410 ACPI_RESOURCE_NAME_END_TAG) {
411 /* Return the pointer to the end_tag */
412
413 *end_tag = aml;
414 return_ACPI_STATUS(AE_OK);
415 }
416
417 /*
418 * Point to the next resource descriptor in the AML buffer. The
419 * descriptor length is guaranteed to be non-zero by resource
420 * validation above.
421 */
422 aml += acpi_ut_get_descriptor_length(aml);
423 }
424
425 /* Did not find an end_tag resource descriptor */
426
427 return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
428}
diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c
index c1cb27583be8..6ff1d7073349 100644
--- a/drivers/acpi/utilities/utstate.c
+++ b/drivers/acpi/utilities/utstate.c
@@ -63,7 +63,7 @@ acpi_status
63acpi_ut_create_pkg_state_and_push(void *internal_object, 63acpi_ut_create_pkg_state_and_push(void *internal_object,
64 void *external_object, 64 void *external_object,
65 u16 index, 65 u16 index,
66 union acpi_generic_state ** state_list) 66 union acpi_generic_state **state_list)
67{ 67{
68 union acpi_generic_state *state; 68 union acpi_generic_state *state;
69 69
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index f06bd5e5e9d1..57adc5bc02f3 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -178,10 +178,14 @@ acpi_status acpi_enable_subsystem(u32 flags)
178 /* 178 /*
179 * Initialize ACPI Event handling (Fixed and General Purpose) 179 * Initialize ACPI Event handling (Fixed and General Purpose)
180 * 180 *
181 * NOTE: We must have the hardware AND events initialized before we can 181 * Note1: We must have the hardware and events initialized before we can
182 * execute ANY control methods SAFELY. Any control method can require 182 * execute any control methods safely. Any control method can require
183 * ACPI hardware support, so the hardware MUST be initialized before 183 * ACPI hardware support, so the hardware must be fully initialized before
184 * execution! 184 * any method execution!
185 *
186 * Note2: Fixed events are initialized and enabled here. GPEs are
187 * initialized, but cannot be enabled until after the hardware is
188 * completely initialized (SCI and global_lock activated)
185 */ 189 */
186 if (!(flags & ACPI_NO_EVENT_INIT)) { 190 if (!(flags & ACPI_NO_EVENT_INIT)) {
187 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 191 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -193,8 +197,10 @@ acpi_status acpi_enable_subsystem(u32 flags)
193 } 197 }
194 } 198 }
195 199
196 /* Install the SCI handler and Global Lock handler */ 200 /*
197 201 * Install the SCI handler and Global Lock handler. This completes the
202 * hardware initialization.
203 */
198 if (!(flags & ACPI_NO_HANDLER_INIT)) { 204 if (!(flags & ACPI_NO_HANDLER_INIT)) {
199 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 205 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
200 "[Init] Installing SCI/GL handlers\n")); 206 "[Init] Installing SCI/GL handlers\n"));
@@ -205,6 +211,24 @@ acpi_status acpi_enable_subsystem(u32 flags)
205 } 211 }
206 } 212 }
207 213
214 /*
215 * Complete the GPE initialization for the GPE blocks defined in the FADT
216 * (GPE block 0 and 1).
217 *
218 * Note1: This is where the _PRW methods are executed for the GPEs. These
219 * methods can only be executed after the SCI and Global Lock handlers are
220 * installed and initialized.
221 *
222 * Note2: Currently, there seems to be no need to run the _REG methods
223 * before execution of the _PRW methods and enabling of the GPEs.
224 */
225 if (!(flags & ACPI_NO_EVENT_INIT)) {
226 status = acpi_ev_install_fadt_gpes();
227 if (ACPI_FAILURE(status)) {
228 return (status);
229 }
230 }
231
208 return_ACPI_STATUS(status); 232 return_ACPI_STATUS(status);
209} 233}
210 234
@@ -230,9 +254,9 @@ acpi_status acpi_initialize_objects(u32 flags)
230 /* 254 /*
231 * Run all _REG methods 255 * Run all _REG methods
232 * 256 *
233 * NOTE: Any objects accessed 257 * Note: Any objects accessed by the _REG methods will be automatically
234 * by the _REG methods will be automatically initialized, even if they 258 * initialized, even if they contain executable AML (see the call to
235 * contain executable AML (see call to acpi_ns_initialize_objects below). 259 * acpi_ns_initialize_objects below).
236 */ 260 */
237 if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { 261 if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
238 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 262 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -245,9 +269,9 @@ acpi_status acpi_initialize_objects(u32 flags)
245 } 269 }
246 270
247 /* 271 /*
248 * Initialize the objects that remain uninitialized. This 272 * Initialize the objects that remain uninitialized. This runs the
249 * runs the executable AML that may be part of the declaration of these 273 * executable AML that may be part of the declaration of these objects:
250 * objects: operation_regions, buffer_fields, Buffers, and Packages. 274 * operation_regions, buffer_fields, Buffers, and Packages.
251 */ 275 */
252 if (!(flags & ACPI_NO_OBJECT_INIT)) { 276 if (!(flags & ACPI_NO_OBJECT_INIT)) {
253 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 277 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -260,8 +284,8 @@ acpi_status acpi_initialize_objects(u32 flags)
260 } 284 }
261 285
262 /* 286 /*
263 * Initialize all device objects in the namespace 287 * Initialize all device objects in the namespace. This runs the device
264 * This runs the _STA and _INI methods. 288 * _STA and _INI methods.
265 */ 289 */
266 if (!(flags & ACPI_NO_DEVICE_INIT)) { 290 if (!(flags & ACPI_NO_DEVICE_INIT)) {
267 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 291 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,