Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: utxface - External interfaces for "global" ACPI functions |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | b4e104e | 2011-01-17 11:05:40 +0800 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2011, Intel Corp. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Paul Gortmaker | 214f2c9 | 2011-10-26 16:22:14 -0400 | [diff] [blame] | 44 | #include <linux/export.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <acpi/acpi.h> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 46 | #include "accommon.h" |
| 47 | #include "acevents.h" |
| 48 | #include "acnamesp.h" |
| 49 | #include "acdebug.h" |
| 50 | #include "actables.h" |
Lin Ming | f654c0f | 2012-01-12 13:10:32 +0800 | [diff] [blame^] | 51 | #include "acinterp.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | #define _COMPONENT ACPI_UTILITIES |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 54 | ACPI_MODULE_NAME("utxface") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 56 | #ifndef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | /******************************************************************************* |
| 58 | * |
| 59 | * FUNCTION: acpi_initialize_subsystem |
| 60 | * |
| 61 | * PARAMETERS: None |
| 62 | * |
| 63 | * RETURN: Status |
| 64 | * |
| 65 | * DESCRIPTION: Initializes all global variables. This is the first function |
| 66 | * called, so any early initialization belongs here. |
| 67 | * |
| 68 | ******************************************************************************/ |
Len Brown | dd272b5 | 2007-05-30 00:26:11 -0400 | [diff] [blame] | 69 | acpi_status __init acpi_initialize_subsystem(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 71 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 73 | ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 74 | |
Bob Moore | cb219bb | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 75 | acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 76 | ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | /* Initialize the OS-Dependent layer */ |
| 79 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 80 | status = acpi_os_initialize(); |
| 81 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 82 | ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 83 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 86 | /* Initialize all globals used by the subsystem */ |
| 87 | |
Yi Yang | b417d40 | 2008-08-04 10:30:09 +0800 | [diff] [blame] | 88 | status = acpi_ut_init_globals(); |
| 89 | if (ACPI_FAILURE(status)) { |
| 90 | ACPI_EXCEPTION((AE_INFO, status, |
| 91 | "During initialization of globals")); |
| 92 | return_ACPI_STATUS(status); |
| 93 | } |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | /* Create the default mutex objects */ |
| 96 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 97 | status = acpi_ut_mutex_initialize(); |
| 98 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 99 | ACPI_EXCEPTION((AE_INFO, status, |
| 100 | "During Global Mutex creation")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 101 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | /* |
| 105 | * Initialize the namespace manager and |
| 106 | * the root of the namespace tree |
| 107 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 108 | status = acpi_ns_root_initialize(); |
| 109 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 110 | ACPI_EXCEPTION((AE_INFO, status, |
| 111 | "During Namespace initialization")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 112 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Lin Ming | b0ed7a9 | 2010-08-06 09:35:51 +0800 | [diff] [blame] | 115 | /* Initialize the global OSI interfaces list with the static names */ |
| 116 | |
| 117 | status = acpi_ut_initialize_interfaces(); |
| 118 | if (ACPI_FAILURE(status)) { |
| 119 | ACPI_EXCEPTION((AE_INFO, status, |
| 120 | "During OSI interfaces initialization")); |
| 121 | return_ACPI_STATUS(status); |
| 122 | } |
| 123 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | /* If configured, initialize the AML debugger */ |
| 125 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 126 | ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 127 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | /******************************************************************************* |
| 131 | * |
| 132 | * FUNCTION: acpi_enable_subsystem |
| 133 | * |
| 134 | * PARAMETERS: Flags - Init/enable Options |
| 135 | * |
| 136 | * RETURN: Status |
| 137 | * |
| 138 | * DESCRIPTION: Completes the subsystem initialization including hardware. |
| 139 | * Puts system into ACPI mode if it isn't already. |
| 140 | * |
| 141 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 142 | acpi_status acpi_enable_subsystem(u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 144 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 146 | ACPI_FUNCTION_TRACE(acpi_enable_subsystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | /* Enable ACPI mode */ |
| 149 | |
| 150 | if (!(flags & ACPI_NO_ACPI_ENABLE)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 151 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 152 | "[Init] Going into ACPI mode\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | acpi_gbl_original_mode = acpi_hw_get_mode(); |
| 155 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 156 | status = acpi_enable(); |
| 157 | if (ACPI_FAILURE(status)) { |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 158 | ACPI_WARNING((AE_INFO, "AcpiEnable failed")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 159 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | } |
| 161 | } |
| 162 | |
| 163 | /* |
Bob Moore | 009c4cbe | 2008-11-12 15:34:52 +0800 | [diff] [blame] | 164 | * Obtain a permanent mapping for the FACS. This is required for the |
| 165 | * Global Lock and the Firmware Waking Vector |
| 166 | */ |
| 167 | status = acpi_tb_initialize_facs(); |
| 168 | if (ACPI_FAILURE(status)) { |
| 169 | ACPI_WARNING((AE_INFO, "Could not map the FACS table")); |
| 170 | return_ACPI_STATUS(status); |
| 171 | } |
| 172 | |
| 173 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | * Install the default op_region handlers. These are installed unless |
| 175 | * other handlers have already been installed via the |
| 176 | * install_address_space_handler interface. |
| 177 | */ |
| 178 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 179 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 180 | "[Init] Installing default address space handlers\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 182 | status = acpi_ev_install_region_handlers(); |
| 183 | if (ACPI_FAILURE(status)) { |
| 184 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | } |
| 186 | } |
| 187 | |
| 188 | /* |
| 189 | * Initialize ACPI Event handling (Fixed and General Purpose) |
| 190 | * |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 191 | * Note1: We must have the hardware and events initialized before we can |
| 192 | * execute any control methods safely. Any control method can require |
| 193 | * ACPI hardware support, so the hardware must be fully initialized before |
| 194 | * any method execution! |
| 195 | * |
| 196 | * Note2: Fixed events are initialized and enabled here. GPEs are |
| 197 | * initialized, but cannot be enabled until after the hardware is |
| 198 | * completely initialized (SCI and global_lock activated) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | */ |
| 200 | if (!(flags & ACPI_NO_EVENT_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 201 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 202 | "[Init] Initializing ACPI events\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 204 | status = acpi_ev_initialize_events(); |
| 205 | if (ACPI_FAILURE(status)) { |
| 206 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | } |
| 208 | } |
| 209 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 210 | /* |
| 211 | * Install the SCI handler and Global Lock handler. This completes the |
| 212 | * hardware initialization. |
| 213 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | if (!(flags & ACPI_NO_HANDLER_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 215 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 216 | "[Init] Installing SCI/GL handlers\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 218 | status = acpi_ev_install_xrupt_handlers(); |
| 219 | if (ACPI_FAILURE(status)) { |
| 220 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | } |
| 222 | } |
| 223 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 224 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | } |
| 226 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 227 | ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) |
| 228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | /******************************************************************************* |
| 230 | * |
| 231 | * FUNCTION: acpi_initialize_objects |
| 232 | * |
| 233 | * PARAMETERS: Flags - Init/enable Options |
| 234 | * |
| 235 | * RETURN: Status |
| 236 | * |
| 237 | * DESCRIPTION: Completes namespace initialization by initializing device |
| 238 | * objects and executing AML code for Regions, buffers, etc. |
| 239 | * |
| 240 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 241 | acpi_status acpi_initialize_objects(u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 243 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 245 | ACPI_FUNCTION_TRACE(acpi_initialize_objects); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
| 247 | /* |
| 248 | * Run all _REG methods |
| 249 | * |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 250 | * Note: Any objects accessed by the _REG methods will be automatically |
| 251 | * initialized, even if they contain executable AML (see the call to |
| 252 | * acpi_ns_initialize_objects below). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | */ |
| 254 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 255 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 256 | "[Init] Executing _REG OpRegion methods\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 258 | status = acpi_ev_initialize_op_regions(); |
| 259 | if (ACPI_FAILURE(status)) { |
| 260 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | } |
| 262 | } |
| 263 | |
| 264 | /* |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 265 | * Execute any module-level code that was detected during the table load |
| 266 | * phase. Although illegal since ACPI 2.0, there are many machines that |
| 267 | * contain this type of code. Each block of detected executable AML code |
| 268 | * outside of any control method is wrapped with a temporary control |
| 269 | * method object and placed on a global list. The methods on this list |
| 270 | * are executed below. |
| 271 | */ |
| 272 | acpi_ns_exec_module_code_list(); |
| 273 | |
| 274 | /* |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 275 | * Initialize the objects that remain uninitialized. This runs the |
| 276 | * executable AML that may be part of the declaration of these objects: |
| 277 | * operation_regions, buffer_fields, Buffers, and Packages. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | */ |
| 279 | if (!(flags & ACPI_NO_OBJECT_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 280 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 281 | "[Init] Completing Initialization of ACPI Objects\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 283 | status = acpi_ns_initialize_objects(); |
| 284 | if (ACPI_FAILURE(status)) { |
| 285 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | } |
| 287 | } |
| 288 | |
| 289 | /* |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 290 | * Initialize all device objects in the namespace. This runs the device |
| 291 | * _STA and _INI methods. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | */ |
| 293 | if (!(flags & ACPI_NO_DEVICE_INIT)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 294 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 295 | "[Init] Initializing ACPI Devices\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 297 | status = acpi_ns_initialize_devices(); |
| 298 | if (ACPI_FAILURE(status)) { |
| 299 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | } |
| 301 | } |
| 302 | |
| 303 | /* |
| 304 | * Empty the caches (delete the cached objects) on the assumption that |
| 305 | * the table load filled them up more than they will be at runtime -- |
| 306 | * thus wasting non-paged memory. |
| 307 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 308 | status = acpi_purge_cached_objects(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
| 310 | acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 311 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | } |
| 313 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 314 | ACPI_EXPORT_SYMBOL(acpi_initialize_objects) |
| 315 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 316 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | /******************************************************************************* |
| 318 | * |
| 319 | * FUNCTION: acpi_terminate |
| 320 | * |
| 321 | * PARAMETERS: None |
| 322 | * |
| 323 | * RETURN: Status |
| 324 | * |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 325 | * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | * |
| 327 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 328 | acpi_status acpi_terminate(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 330 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 332 | ACPI_FUNCTION_TRACE(acpi_terminate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 334 | /* Just exit if subsystem is already shutdown */ |
| 335 | |
| 336 | if (acpi_gbl_shutdown) { |
| 337 | ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); |
| 338 | return_ACPI_STATUS(AE_OK); |
| 339 | } |
| 340 | |
| 341 | /* Subsystem appears active, go ahead and shut it down */ |
| 342 | |
| 343 | acpi_gbl_shutdown = TRUE; |
| 344 | acpi_gbl_startup_flags = 0; |
| 345 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
| 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /* Terminate the AML Debugger if present */ |
| 348 | |
| 349 | ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); |
| 350 | |
| 351 | /* Shutdown and free all resources */ |
| 352 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 353 | acpi_ut_subsystem_shutdown(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | |
| 355 | /* Free the mutex objects */ |
| 356 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 357 | acpi_ut_mutex_terminate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
| 359 | #ifdef ACPI_DEBUGGER |
| 360 | |
| 361 | /* Shut down the debugger */ |
| 362 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 363 | acpi_db_terminate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | #endif |
| 365 | |
| 366 | /* Now we can shutdown the OS-dependent layer */ |
| 367 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 368 | status = acpi_os_terminate(); |
| 369 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 372 | ACPI_EXPORT_SYMBOL(acpi_terminate) |
Bob Moore | 2f977b3 | 2009-07-24 11:25:16 +0800 | [diff] [blame] | 373 | |
Bob Moore | e20a679 | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 374 | #ifndef ACPI_ASL_COMPILER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | #ifdef ACPI_FUTURE_USAGE |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 376 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | * |
| 378 | * FUNCTION: acpi_subsystem_status |
| 379 | * |
| 380 | * PARAMETERS: None |
| 381 | * |
| 382 | * RETURN: Status of the ACPI subsystem |
| 383 | * |
| 384 | * DESCRIPTION: Other drivers that use the ACPI subsystem should call this |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 385 | * before making any other calls, to ensure the subsystem |
| 386 | * initialized successfully. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 388 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 389 | acpi_status acpi_subsystem_status(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 391 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) { |
| 393 | return (AE_OK); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 394 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | return (AE_ERROR); |
| 396 | } |
| 397 | } |
| 398 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 399 | ACPI_EXPORT_SYMBOL(acpi_subsystem_status) |
| 400 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 401 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | * |
| 403 | * FUNCTION: acpi_get_system_info |
| 404 | * |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 405 | * PARAMETERS: out_buffer - A buffer to receive the resources for the |
| 406 | * device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | * |
| 408 | * RETURN: Status - the status of the call |
| 409 | * |
| 410 | * DESCRIPTION: This function is called to get information about the current |
| 411 | * state of the ACPI subsystem. It will return system information |
| 412 | * in the out_buffer. |
| 413 | * |
| 414 | * If the function fails an appropriate status will be returned |
| 415 | * and the value of out_buffer is undefined. |
| 416 | * |
| 417 | ******************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 418 | acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 420 | struct acpi_system_info *info_ptr; |
| 421 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 423 | ACPI_FUNCTION_TRACE(acpi_get_system_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
| 425 | /* Parameter validation */ |
| 426 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 427 | status = acpi_ut_validate_buffer(out_buffer); |
| 428 | if (ACPI_FAILURE(status)) { |
| 429 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | /* Validate/Allocate/Clear caller buffer */ |
| 433 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 434 | status = |
| 435 | acpi_ut_initialize_buffer(out_buffer, |
| 436 | sizeof(struct acpi_system_info)); |
| 437 | if (ACPI_FAILURE(status)) { |
| 438 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | /* |
| 442 | * Populate the return buffer |
| 443 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 444 | info_ptr = (struct acpi_system_info *)out_buffer->pointer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 446 | info_ptr->acpi_ca_version = ACPI_CA_VERSION; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
| 448 | /* System flags (ACPI capabilities) */ |
| 449 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 450 | info_ptr->flags = ACPI_SYS_MODE_ACPI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
| 452 | /* Timer resolution - 24 or 32 bits */ |
| 453 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 454 | if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | info_ptr->timer_resolution = 24; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 456 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | info_ptr->timer_resolution = 32; |
| 458 | } |
| 459 | |
| 460 | /* Clear the reserved fields */ |
| 461 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 462 | info_ptr->reserved1 = 0; |
| 463 | info_ptr->reserved2 = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
| 465 | /* Current debug levels */ |
| 466 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 467 | info_ptr->debug_layer = acpi_dbg_layer; |
| 468 | info_ptr->debug_level = acpi_dbg_level; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 470 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 473 | ACPI_EXPORT_SYMBOL(acpi_get_system_info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
| 475 | /***************************************************************************** |
| 476 | * |
| 477 | * FUNCTION: acpi_install_initialization_handler |
| 478 | * |
| 479 | * PARAMETERS: Handler - Callback procedure |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 480 | * Function - Not (currently) used, see below |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | * |
| 482 | * RETURN: Status |
| 483 | * |
| 484 | * DESCRIPTION: Install an initialization handler |
| 485 | * |
| 486 | * TBD: When a second function is added, must save the Function also. |
| 487 | * |
| 488 | ****************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 490 | acpi_install_initialization_handler(acpi_init_handler handler, u32 function) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | { |
| 492 | |
| 493 | if (!handler) { |
| 494 | return (AE_BAD_PARAMETER); |
| 495 | } |
| 496 | |
| 497 | if (acpi_gbl_init_handler) { |
| 498 | return (AE_ALREADY_EXISTS); |
| 499 | } |
| 500 | |
| 501 | acpi_gbl_init_handler = handler; |
| 502 | return AE_OK; |
| 503 | } |
| 504 | |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 505 | ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 506 | #endif /* ACPI_FUTURE_USAGE */ |
Lin Ming | b0ed7a9 | 2010-08-06 09:35:51 +0800 | [diff] [blame] | 507 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | /***************************************************************************** |
| 509 | * |
| 510 | * FUNCTION: acpi_purge_cached_objects |
| 511 | * |
| 512 | * PARAMETERS: None |
| 513 | * |
| 514 | * RETURN: Status |
| 515 | * |
| 516 | * DESCRIPTION: Empty all caches (delete the cached objects) |
| 517 | * |
| 518 | ****************************************************************************/ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 519 | acpi_status acpi_purge_cached_objects(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | { |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 521 | ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 523 | (void)acpi_os_purge_cache(acpi_gbl_state_cache); |
| 524 | (void)acpi_os_purge_cache(acpi_gbl_operand_cache); |
| 525 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache); |
| 526 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); |
| 527 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | } |
Bob Moore | 8313524 | 2006-10-03 00:00:00 -0400 | [diff] [blame] | 529 | |
| 530 | ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) |
Lin Ming | b0ed7a9 | 2010-08-06 09:35:51 +0800 | [diff] [blame] | 531 | |
| 532 | /***************************************************************************** |
| 533 | * |
| 534 | * FUNCTION: acpi_install_interface |
| 535 | * |
| 536 | * PARAMETERS: interface_name - The interface to install |
| 537 | * |
| 538 | * RETURN: Status |
| 539 | * |
| 540 | * DESCRIPTION: Install an _OSI interface to the global list |
| 541 | * |
| 542 | ****************************************************************************/ |
| 543 | acpi_status acpi_install_interface(acpi_string interface_name) |
| 544 | { |
| 545 | acpi_status status; |
| 546 | struct acpi_interface_info *interface_info; |
| 547 | |
| 548 | /* Parameter validation */ |
| 549 | |
| 550 | if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) { |
| 551 | return (AE_BAD_PARAMETER); |
| 552 | } |
| 553 | |
| 554 | (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); |
| 555 | |
| 556 | /* Check if the interface name is already in the global list */ |
| 557 | |
| 558 | interface_info = acpi_ut_get_interface(interface_name); |
| 559 | if (interface_info) { |
| 560 | /* |
| 561 | * The interface already exists in the list. This is OK if the |
| 562 | * interface has been marked invalid -- just clear the bit. |
| 563 | */ |
| 564 | if (interface_info->flags & ACPI_OSI_INVALID) { |
| 565 | interface_info->flags &= ~ACPI_OSI_INVALID; |
| 566 | status = AE_OK; |
| 567 | } else { |
| 568 | status = AE_ALREADY_EXISTS; |
| 569 | } |
| 570 | } else { |
| 571 | /* New interface name, install into the global list */ |
| 572 | |
| 573 | status = acpi_ut_install_interface(interface_name); |
| 574 | } |
| 575 | |
| 576 | acpi_os_release_mutex(acpi_gbl_osi_mutex); |
| 577 | return (status); |
| 578 | } |
| 579 | |
| 580 | ACPI_EXPORT_SYMBOL(acpi_install_interface) |
| 581 | |
| 582 | /***************************************************************************** |
| 583 | * |
| 584 | * FUNCTION: acpi_remove_interface |
| 585 | * |
| 586 | * PARAMETERS: interface_name - The interface to remove |
| 587 | * |
| 588 | * RETURN: Status |
| 589 | * |
| 590 | * DESCRIPTION: Remove an _OSI interface from the global list |
| 591 | * |
| 592 | ****************************************************************************/ |
| 593 | acpi_status acpi_remove_interface(acpi_string interface_name) |
| 594 | { |
| 595 | acpi_status status; |
| 596 | |
| 597 | /* Parameter validation */ |
| 598 | |
| 599 | if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) { |
| 600 | return (AE_BAD_PARAMETER); |
| 601 | } |
| 602 | |
| 603 | (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); |
| 604 | |
| 605 | status = acpi_ut_remove_interface(interface_name); |
| 606 | |
| 607 | acpi_os_release_mutex(acpi_gbl_osi_mutex); |
| 608 | return (status); |
| 609 | } |
| 610 | |
| 611 | ACPI_EXPORT_SYMBOL(acpi_remove_interface) |
| 612 | |
| 613 | /***************************************************************************** |
| 614 | * |
| 615 | * FUNCTION: acpi_install_interface_handler |
| 616 | * |
| 617 | * PARAMETERS: Handler - The _OSI interface handler to install |
| 618 | * NULL means "remove existing handler" |
| 619 | * |
| 620 | * RETURN: Status |
| 621 | * |
| 622 | * DESCRIPTION: Install a handler for the predefined _OSI ACPI method. |
| 623 | * invoked during execution of the internal implementation of |
| 624 | * _OSI. A NULL handler simply removes any existing handler. |
| 625 | * |
| 626 | ****************************************************************************/ |
| 627 | acpi_status acpi_install_interface_handler(acpi_interface_handler handler) |
| 628 | { |
| 629 | acpi_status status = AE_OK; |
| 630 | |
| 631 | (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); |
| 632 | |
| 633 | if (handler && acpi_gbl_interface_handler) { |
| 634 | status = AE_ALREADY_EXISTS; |
| 635 | } else { |
| 636 | acpi_gbl_interface_handler = handler; |
| 637 | } |
| 638 | |
| 639 | acpi_os_release_mutex(acpi_gbl_osi_mutex); |
| 640 | return (status); |
| 641 | } |
| 642 | |
| 643 | ACPI_EXPORT_SYMBOL(acpi_install_interface_handler) |
Lin Ming | f654c0f | 2012-01-12 13:10:32 +0800 | [diff] [blame^] | 644 | |
| 645 | /***************************************************************************** |
| 646 | * |
| 647 | * FUNCTION: acpi_check_address_range |
| 648 | * |
| 649 | * PARAMETERS: space_id - Address space ID |
| 650 | * Address - Start address |
| 651 | * Length - Length |
| 652 | * Warn - TRUE if warning on overlap desired |
| 653 | * |
| 654 | * RETURN: Count of the number of conflicts detected. |
| 655 | * |
| 656 | * DESCRIPTION: Check if the input address range overlaps any of the |
| 657 | * ASL operation region address ranges. |
| 658 | * |
| 659 | ****************************************************************************/ |
| 660 | u32 |
| 661 | acpi_check_address_range(acpi_adr_space_type space_id, |
| 662 | acpi_physical_address address, |
| 663 | acpi_size length, u8 warn) |
| 664 | { |
| 665 | u32 overlaps; |
| 666 | acpi_status status; |
| 667 | |
| 668 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 669 | if (ACPI_FAILURE(status)) { |
| 670 | return (0); |
| 671 | } |
| 672 | |
| 673 | overlaps = acpi_ut_check_address_range(space_id, address, |
| 674 | (u32)length, warn); |
| 675 | |
| 676 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 677 | return (overlaps); |
| 678 | } |
| 679 | |
| 680 | ACPI_EXPORT_SYMBOL(acpi_check_address_range) |
Lin Ming | b0ed7a9 | 2010-08-06 09:35:51 +0800 | [diff] [blame] | 681 | #endif /* !ACPI_ASL_COMPILER */ |