This source file includes following definitions.
- acpi_ut_initialize_interfaces
- acpi_ut_interface_terminate
- acpi_ut_install_interface
- acpi_ut_remove_interface
- acpi_ut_update_interfaces
- acpi_ut_get_interface
- acpi_ut_osi_implementation
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10 #include <acpi/acpi.h>
11 #include "accommon.h"
12
13 #define _COMPONENT ACPI_UTILITIES
14 ACPI_MODULE_NAME("utosi")
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53 static struct acpi_interface_info acpi_default_supported_interfaces[] = {
54
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56 {"Windows 2000", NULL, 0, ACPI_OSI_WIN_2000},
57 {"Windows 2001", NULL, 0, ACPI_OSI_WIN_XP},
58 {"Windows 2001 SP1", NULL, 0, ACPI_OSI_WIN_XP_SP1},
59 {"Windows 2001.1", NULL, 0, ACPI_OSI_WINSRV_2003},
60 {"Windows 2001 SP2", NULL, 0, ACPI_OSI_WIN_XP_SP2},
61 {"Windows 2001.1 SP1", NULL, 0, ACPI_OSI_WINSRV_2003_SP1},
62 {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA},
63 {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008},
64 {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1},
65 {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2},
66 {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7},
67 {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8},
68 {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8_1},
69 {"Windows 2015", NULL, 0, ACPI_OSI_WIN_10},
70 {"Windows 2016", NULL, 0, ACPI_OSI_WIN_10_RS1},
71 {"Windows 2017", NULL, 0, ACPI_OSI_WIN_10_RS2},
72 {"Windows 2017.2", NULL, 0, ACPI_OSI_WIN_10_RS3},
73 {"Windows 2018", NULL, 0, ACPI_OSI_WIN_10_RS4},
74 {"Windows 2018.2", NULL, 0, ACPI_OSI_WIN_10_RS5},
75 {"Windows 2019", NULL, 0, ACPI_OSI_WIN_10_19H1},
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79 {"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0},
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88 {"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
89 {"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
90 {"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
91 {"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
92 {"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}
93 };
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107 acpi_status acpi_ut_initialize_interfaces(void)
108 {
109 acpi_status status;
110 u32 i;
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112 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
113 if (ACPI_FAILURE(status)) {
114 return (status);
115 }
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117 acpi_gbl_supported_interfaces = acpi_default_supported_interfaces;
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121 for (i = 0;
122 i < (ACPI_ARRAY_LENGTH(acpi_default_supported_interfaces) - 1);
123 i++) {
124 acpi_default_supported_interfaces[i].next =
125 &acpi_default_supported_interfaces[(acpi_size)i + 1];
126 }
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128 acpi_os_release_mutex(acpi_gbl_osi_mutex);
129 return (AE_OK);
130 }
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145 acpi_status acpi_ut_interface_terminate(void)
146 {
147 acpi_status status;
148 struct acpi_interface_info *next_interface;
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150 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
151 if (ACPI_FAILURE(status)) {
152 return (status);
153 }
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155 next_interface = acpi_gbl_supported_interfaces;
156 while (next_interface) {
157 acpi_gbl_supported_interfaces = next_interface->next;
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159 if (next_interface->flags & ACPI_OSI_DYNAMIC) {
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163 ACPI_FREE(next_interface->name);
164 ACPI_FREE(next_interface);
165 } else {
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168 if (next_interface->flags & ACPI_OSI_DEFAULT_INVALID) {
169 next_interface->flags |= ACPI_OSI_INVALID;
170 } else {
171 next_interface->flags &= ~ACPI_OSI_INVALID;
172 }
173 }
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175 next_interface = acpi_gbl_supported_interfaces;
176 }
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178 acpi_os_release_mutex(acpi_gbl_osi_mutex);
179 return (AE_OK);
180 }
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195 acpi_status acpi_ut_install_interface(acpi_string interface_name)
196 {
197 struct acpi_interface_info *interface_info;
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201 interface_info =
202 ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_interface_info));
203 if (!interface_info) {
204 return (AE_NO_MEMORY);
205 }
206
207 interface_info->name = ACPI_ALLOCATE_ZEROED(strlen(interface_name) + 1);
208 if (!interface_info->name) {
209 ACPI_FREE(interface_info);
210 return (AE_NO_MEMORY);
211 }
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214
215 strcpy(interface_info->name, interface_name);
216 interface_info->flags = ACPI_OSI_DYNAMIC;
217 interface_info->next = acpi_gbl_supported_interfaces;
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219 acpi_gbl_supported_interfaces = interface_info;
220 return (AE_OK);
221 }
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236 acpi_status acpi_ut_remove_interface(acpi_string interface_name)
237 {
238 struct acpi_interface_info *previous_interface;
239 struct acpi_interface_info *next_interface;
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241 previous_interface = next_interface = acpi_gbl_supported_interfaces;
242 while (next_interface) {
243 if (!strcmp(interface_name, next_interface->name)) {
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248 if (next_interface->flags & ACPI_OSI_DYNAMIC) {
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252 if (previous_interface == next_interface) {
253 acpi_gbl_supported_interfaces =
254 next_interface->next;
255 } else {
256 previous_interface->next =
257 next_interface->next;
258 }
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260 ACPI_FREE(next_interface->name);
261 ACPI_FREE(next_interface);
262 } else {
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267 if (next_interface->flags & ACPI_OSI_INVALID) {
268 return (AE_NOT_EXIST);
269 }
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271 next_interface->flags |= ACPI_OSI_INVALID;
272 }
273
274 return (AE_OK);
275 }
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277 previous_interface = next_interface;
278 next_interface = next_interface->next;
279 }
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283 return (AE_NOT_EXIST);
284 }
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301 acpi_status acpi_ut_update_interfaces(u8 action)
302 {
303 struct acpi_interface_info *next_interface;
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305 next_interface = acpi_gbl_supported_interfaces;
306 while (next_interface) {
307 if (((next_interface->flags & ACPI_OSI_FEATURE) &&
308 (action & ACPI_FEATURE_STRINGS)) ||
309 (!(next_interface->flags & ACPI_OSI_FEATURE) &&
310 (action & ACPI_VENDOR_STRINGS))) {
311 if (action & ACPI_DISABLE_INTERFACES) {
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315 next_interface->flags |= ACPI_OSI_INVALID;
316 } else {
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319 next_interface->flags &= ~ACPI_OSI_INVALID;
320 }
321 }
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323 next_interface = next_interface->next;
324 }
325
326 return (AE_OK);
327 }
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342 struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name)
343 {
344 struct acpi_interface_info *next_interface;
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346 next_interface = acpi_gbl_supported_interfaces;
347 while (next_interface) {
348 if (!strcmp(interface_name, next_interface->name)) {
349 return (next_interface);
350 }
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352 next_interface = next_interface->next;
353 }
354
355 return (NULL);
356 }
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383 acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
384 {
385 union acpi_operand_object *string_desc;
386 union acpi_operand_object *return_desc;
387 struct acpi_interface_info *interface_info;
388 acpi_interface_handler interface_handler;
389 acpi_status status;
390 u64 return_value;
391
392 ACPI_FUNCTION_TRACE(ut_osi_implementation);
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396 string_desc = walk_state->arguments[0].object;
397 if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
398 return_ACPI_STATUS(AE_TYPE);
399 }
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403 return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
404 if (!return_desc) {
405 return_ACPI_STATUS(AE_NO_MEMORY);
406 }
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410 return_value = 0;
411 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
412 if (ACPI_FAILURE(status)) {
413 acpi_ut_remove_reference(return_desc);
414 return_ACPI_STATUS(status);
415 }
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419 interface_info = acpi_ut_get_interface(string_desc->string.pointer);
420 if (interface_info && !(interface_info->flags & ACPI_OSI_INVALID)) {
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426 if (interface_info->value > acpi_gbl_osi_data) {
427 acpi_gbl_osi_data = interface_info->value;
428 }
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430 return_value = ACPI_UINT64_MAX;
431 }
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433 acpi_os_release_mutex(acpi_gbl_osi_mutex);
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440 interface_handler = acpi_gbl_interface_handler;
441 if (interface_handler) {
442 if (interface_handler
443 (string_desc->string.pointer, (u32)return_value)) {
444 return_value = ACPI_UINT64_MAX;
445 }
446 }
447
448 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO,
449 "ACPI: BIOS _OSI(\"%s\") is %ssupported\n",
450 string_desc->string.pointer,
451 return_value == 0 ? "not " : ""));
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455 return_desc->integer.value = return_value;
456 walk_state->return_desc = return_desc;
457 return_ACPI_STATUS(AE_OK);
458 }