Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * acpi_bus.c - ACPI Bus Driver ($Revision: 80 $) |
| 3 | * |
| 4 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
| 5 | * |
| 6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or (at |
| 11 | * your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 21 | * |
| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 23 | */ |
| 24 | |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/ioport.h> |
Randy Dunlap | d568df8 | 2006-07-12 01:47:00 -0400 | [diff] [blame] | 28 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/list.h> |
| 30 | #include <linux/sched.h> |
| 31 | #include <linux/pm.h> |
| 32 | #include <linux/device.h> |
| 33 | #include <linux/proc_fs.h> |
Harvey Harrison | 6697c05 | 2008-02-09 23:24:08 +0100 | [diff] [blame] | 34 | #include <linux/acpi.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 35 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #ifdef CONFIG_X86 |
| 37 | #include <asm/mpspec.h> |
| 38 | #endif |
Robert Hancock | 7752d5c | 2008-02-15 01:27:20 -0800 | [diff] [blame] | 39 | #include <linux/pci.h> |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 40 | #include <acpi/apei.h> |
Len Brown | eb27cae | 2009-07-06 23:40:19 -0400 | [diff] [blame] | 41 | #include <linux/dmi.h> |
Rafael J. Wysocki | cd51e61c | 2011-02-11 00:04:52 +0100 | [diff] [blame] | 42 | #include <linux/suspend.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
Bjorn Helgaas | e60cc7a | 2009-03-13 12:08:26 -0600 | [diff] [blame] | 44 | #include "internal.h" |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #define _COMPONENT ACPI_BUS_COMPONENT |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 47 | ACPI_MODULE_NAME("bus"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 49 | struct acpi_device *acpi_root; |
| 50 | struct proc_dir_entry *acpi_root_dir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | EXPORT_SYMBOL(acpi_root_dir); |
| 52 | |
Lin Ming | cce4f63 | 2010-05-12 09:26:48 +0800 | [diff] [blame] | 53 | #ifdef CONFIG_X86 |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 54 | static int set_copy_dsdt(const struct dmi_system_id *id) |
| 55 | { |
| 56 | printk(KERN_NOTICE "%s detected - " |
| 57 | "force copy of DSDT to local memory\n", id->ident); |
| 58 | acpi_gbl_copy_dsdt_locally = 1; |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static struct dmi_system_id dsdt_dmi_table[] __initdata = { |
| 63 | /* |
Len Brown | 100cf87 | 2010-09-28 22:57:02 -0400 | [diff] [blame] | 64 | * Invoke DSDT corruption work-around on all Toshiba Satellite. |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 65 | * https://bugzilla.kernel.org/show_bug.cgi?id=14679 |
| 66 | */ |
| 67 | { |
| 68 | .callback = set_copy_dsdt, |
Len Brown | 100cf87 | 2010-09-28 22:57:02 -0400 | [diff] [blame] | 69 | .ident = "TOSHIBA Satellite", |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 70 | .matches = { |
| 71 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
Len Brown | 100cf87 | 2010-09-28 22:57:02 -0400 | [diff] [blame] | 72 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 73 | }, |
Lin Ming | cce4f63 | 2010-05-12 09:26:48 +0800 | [diff] [blame] | 74 | }, |
| 75 | {} |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 76 | }; |
Lin Ming | cce4f63 | 2010-05-12 09:26:48 +0800 | [diff] [blame] | 77 | #else |
| 78 | static struct dmi_system_id dsdt_dmi_table[] __initdata = { |
| 79 | {} |
| 80 | }; |
| 81 | #endif |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | /* -------------------------------------------------------------------------- |
| 84 | Device Management |
| 85 | -------------------------------------------------------------------------- */ |
| 86 | |
Bjorn Helgaas | 402ac53 | 2009-09-21 19:30:01 +0000 | [diff] [blame] | 87 | acpi_status acpi_bus_get_status_handle(acpi_handle handle, |
| 88 | unsigned long long *sta) |
| 89 | { |
| 90 | acpi_status status; |
| 91 | |
| 92 | status = acpi_evaluate_integer(handle, "_STA", NULL, sta); |
| 93 | if (ACPI_SUCCESS(status)) |
| 94 | return AE_OK; |
| 95 | |
| 96 | if (status == AE_NOT_FOUND) { |
| 97 | *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | |
| 98 | ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; |
| 99 | return AE_OK; |
| 100 | } |
| 101 | return status; |
| 102 | } |
| 103 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 104 | int acpi_bus_get_status(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | { |
Bjorn Helgaas | 402ac53 | 2009-09-21 19:30:01 +0000 | [diff] [blame] | 106 | acpi_status status; |
| 107 | unsigned long long sta; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 108 | |
Bjorn Helgaas | 402ac53 | 2009-09-21 19:30:01 +0000 | [diff] [blame] | 109 | status = acpi_bus_get_status_handle(device->handle, &sta); |
| 110 | if (ACPI_FAILURE(status)) |
| 111 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | |
Rafael J. Wysocki | 25db115 | 2013-11-22 21:56:06 +0100 | [diff] [blame] | 113 | acpi_set_device_status(device, sta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
| 115 | if (device->status.functional && !device->status.present) { |
Zhao Yakui | 39a0ad8 | 2008-08-11 13:40:22 +0800 | [diff] [blame] | 116 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " |
| 117 | "functional but not present;\n", |
Rafael J. Wysocki | 25db115 | 2013-11-22 21:56:06 +0100 | [diff] [blame] | 118 | device->pnp.bus_id, (u32)sta)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 121 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n", |
Rafael J. Wysocki | 25db115 | 2013-11-22 21:56:06 +0100 | [diff] [blame] | 122 | device->pnp.bus_id, (u32)sta)); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 123 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 125 | EXPORT_SYMBOL(acpi_bus_get_status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Zhang Rui | 2073393 | 2008-01-17 15:51:21 +0800 | [diff] [blame] | 127 | void acpi_bus_private_data_handler(acpi_handle handle, |
Bob Moore | 8e4319c | 2009-06-29 13:43:27 +0800 | [diff] [blame] | 128 | void *context) |
Zhang Rui | 2073393 | 2008-01-17 15:51:21 +0800 | [diff] [blame] | 129 | { |
| 130 | return; |
| 131 | } |
| 132 | EXPORT_SYMBOL(acpi_bus_private_data_handler); |
| 133 | |
| 134 | int acpi_bus_get_private_data(acpi_handle handle, void **data) |
| 135 | { |
Bjorn Helgaas | 6a8c0af | 2013-06-03 18:20:24 +0000 | [diff] [blame] | 136 | acpi_status status; |
Zhang Rui | 2073393 | 2008-01-17 15:51:21 +0800 | [diff] [blame] | 137 | |
| 138 | if (!*data) |
| 139 | return -EINVAL; |
| 140 | |
| 141 | status = acpi_get_data(handle, acpi_bus_private_data_handler, data); |
| 142 | if (ACPI_FAILURE(status) || !*data) { |
| 143 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", |
| 144 | handle)); |
| 145 | return -ENODEV; |
| 146 | } |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | EXPORT_SYMBOL(acpi_bus_get_private_data); |
| 151 | |
Rafael J. Wysocki | f244d8b | 2013-12-31 13:39:42 +0100 | [diff] [blame] | 152 | void acpi_bus_no_hotplug(acpi_handle handle) |
| 153 | { |
| 154 | struct acpi_device *adev = NULL; |
| 155 | |
| 156 | acpi_bus_get_device(handle, &adev); |
| 157 | if (adev) |
| 158 | adev->flags.no_hotplug = true; |
| 159 | } |
| 160 | EXPORT_SYMBOL_GPL(acpi_bus_no_hotplug); |
| 161 | |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 162 | static void acpi_print_osc_error(acpi_handle handle, |
| 163 | struct acpi_osc_context *context, char *error) |
| 164 | { |
| 165 | struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER}; |
| 166 | int i; |
| 167 | |
| 168 | if (ACPI_FAILURE(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer))) |
| 169 | printk(KERN_DEBUG "%s\n", error); |
| 170 | else { |
| 171 | printk(KERN_DEBUG "%s:%s\n", (char *)buffer.pointer, error); |
| 172 | kfree(buffer.pointer); |
| 173 | } |
| 174 | printk(KERN_DEBUG"_OSC request data:"); |
| 175 | for (i = 0; i < context->cap.length; i += sizeof(u32)) |
| 176 | printk("%x ", *((u32 *)(context->cap.pointer + i))); |
| 177 | printk("\n"); |
| 178 | } |
| 179 | |
Chen, Gong | 4b3db70 | 2013-10-21 14:29:25 -0700 | [diff] [blame] | 180 | acpi_status acpi_str_to_uuid(char *str, u8 *uuid) |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 181 | { |
| 182 | int i; |
| 183 | static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21, |
| 184 | 24, 26, 28, 30, 32, 34}; |
| 185 | |
| 186 | if (strlen(str) != 36) |
| 187 | return AE_BAD_PARAMETER; |
| 188 | for (i = 0; i < 36; i++) { |
| 189 | if (i == 8 || i == 13 || i == 18 || i == 23) { |
| 190 | if (str[i] != '-') |
| 191 | return AE_BAD_PARAMETER; |
| 192 | } else if (!isxdigit(str[i])) |
| 193 | return AE_BAD_PARAMETER; |
| 194 | } |
| 195 | for (i = 0; i < 16; i++) { |
Andy Shevchenko | 965fd9e | 2010-05-24 14:33:28 -0700 | [diff] [blame] | 196 | uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4; |
| 197 | uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]); |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 198 | } |
| 199 | return AE_OK; |
| 200 | } |
Chen, Gong | 4b3db70 | 2013-10-21 14:29:25 -0700 | [diff] [blame] | 201 | EXPORT_SYMBOL_GPL(acpi_str_to_uuid); |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 202 | |
| 203 | acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) |
| 204 | { |
| 205 | acpi_status status; |
| 206 | struct acpi_object_list input; |
| 207 | union acpi_object in_params[4]; |
| 208 | union acpi_object *out_obj; |
| 209 | u8 uuid[16]; |
| 210 | u32 errors; |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 211 | struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 212 | |
| 213 | if (!context) |
| 214 | return AE_ERROR; |
| 215 | if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid))) |
| 216 | return AE_ERROR; |
| 217 | context->ret.length = ACPI_ALLOCATE_BUFFER; |
| 218 | context->ret.pointer = NULL; |
| 219 | |
| 220 | /* Setting up input parameters */ |
| 221 | input.count = 4; |
| 222 | input.pointer = in_params; |
| 223 | in_params[0].type = ACPI_TYPE_BUFFER; |
| 224 | in_params[0].buffer.length = 16; |
| 225 | in_params[0].buffer.pointer = uuid; |
| 226 | in_params[1].type = ACPI_TYPE_INTEGER; |
| 227 | in_params[1].integer.value = context->rev; |
| 228 | in_params[2].type = ACPI_TYPE_INTEGER; |
| 229 | in_params[2].integer.value = context->cap.length/sizeof(u32); |
| 230 | in_params[3].type = ACPI_TYPE_BUFFER; |
| 231 | in_params[3].buffer.length = context->cap.length; |
| 232 | in_params[3].buffer.pointer = context->cap.pointer; |
| 233 | |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 234 | status = acpi_evaluate_object(handle, "_OSC", &input, &output); |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 235 | if (ACPI_FAILURE(status)) |
| 236 | return status; |
| 237 | |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 238 | if (!output.length) |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 239 | return AE_NULL_OBJECT; |
| 240 | |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 241 | out_obj = output.pointer; |
| 242 | if (out_obj->type != ACPI_TYPE_BUFFER |
| 243 | || out_obj->buffer.length != context->cap.length) { |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 244 | acpi_print_osc_error(handle, context, |
| 245 | "_OSC evaluation returned wrong type"); |
| 246 | status = AE_TYPE; |
| 247 | goto out_kfree; |
| 248 | } |
| 249 | /* Need to ignore the bit0 in result code */ |
| 250 | errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0); |
| 251 | if (errors) { |
| 252 | if (errors & OSC_REQUEST_ERROR) |
| 253 | acpi_print_osc_error(handle, context, |
| 254 | "_OSC request failed"); |
| 255 | if (errors & OSC_INVALID_UUID_ERROR) |
| 256 | acpi_print_osc_error(handle, context, |
| 257 | "_OSC invalid UUID"); |
| 258 | if (errors & OSC_INVALID_REVISION_ERROR) |
| 259 | acpi_print_osc_error(handle, context, |
| 260 | "_OSC invalid revision"); |
| 261 | if (errors & OSC_CAPABILITIES_MASK_ERROR) { |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 262 | if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD] |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 263 | & OSC_QUERY_ENABLE) |
| 264 | goto out_success; |
| 265 | status = AE_SUPPORT; |
| 266 | goto out_kfree; |
| 267 | } |
| 268 | status = AE_ERROR; |
| 269 | goto out_kfree; |
| 270 | } |
| 271 | out_success: |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 272 | context->ret.length = out_obj->buffer.length; |
Andrei Epure | e2cb5f0 | 2013-03-11 08:20:16 +0000 | [diff] [blame] | 273 | context->ret.pointer = kmemdup(out_obj->buffer.pointer, |
| 274 | context->ret.length, GFP_KERNEL); |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 275 | if (!context->ret.pointer) { |
| 276 | status = AE_NO_MEMORY; |
| 277 | goto out_kfree; |
| 278 | } |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 279 | status = AE_OK; |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 280 | |
| 281 | out_kfree: |
Shaohua Li | 9dc130f | 2009-12-23 17:04:11 +0800 | [diff] [blame] | 282 | kfree(output.pointer); |
| 283 | if (status != AE_OK) |
| 284 | context->ret.pointer = NULL; |
Shaohua Li | 70023de | 2009-10-29 11:04:28 +0800 | [diff] [blame] | 285 | return status; |
| 286 | } |
| 287 | EXPORT_SYMBOL(acpi_run_osc); |
| 288 | |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 289 | bool osc_sb_apei_support_acked; |
Shaohua Li | 3563ff9 | 2009-10-29 11:05:05 +0800 | [diff] [blame] | 290 | static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48"; |
| 291 | static void acpi_bus_osc_support(void) |
| 292 | { |
| 293 | u32 capbuf[2]; |
| 294 | struct acpi_osc_context context = { |
| 295 | .uuid_str = sb_uuid_str, |
| 296 | .rev = 1, |
| 297 | .cap.length = 8, |
| 298 | .cap.pointer = capbuf, |
| 299 | }; |
| 300 | acpi_handle handle; |
| 301 | |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 302 | capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; |
| 303 | capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ |
Zhao Yakui | 6a4e2b7 | 2010-01-08 21:29:58 +0800 | [diff] [blame] | 304 | #if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\ |
| 305 | defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 306 | capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT; |
Shaohua Li | 3563ff9 | 2009-10-29 11:05:05 +0800 | [diff] [blame] | 307 | #endif |
Zhao Yakui | 6a4e2b7 | 2010-01-08 21:29:58 +0800 | [diff] [blame] | 308 | |
| 309 | #if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE) |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 310 | capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; |
Zhao Yakui | 6a4e2b7 | 2010-01-08 21:29:58 +0800 | [diff] [blame] | 311 | #endif |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 312 | |
Toshi Kani | c2f4191 | 2012-05-23 20:25:24 -0600 | [diff] [blame] | 313 | #ifdef ACPI_HOTPLUG_OST |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 314 | capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; |
Toshi Kani | c2f4191 | 2012-05-23 20:25:24 -0600 | [diff] [blame] | 315 | #endif |
| 316 | |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 317 | if (!ghes_disable) |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 318 | capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; |
Shaohua Li | 3563ff9 | 2009-10-29 11:05:05 +0800 | [diff] [blame] | 319 | if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) |
| 320 | return; |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 321 | if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) { |
| 322 | u32 *capbuf_ret = context.ret.pointer; |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 323 | if (context.ret.length > OSC_SUPPORT_DWORD) |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 324 | osc_sb_apei_support_acked = |
Bjorn Helgaas | b938a22 | 2013-09-05 15:05:54 -0600 | [diff] [blame] | 325 | capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; |
Shaohua Li | 3563ff9 | 2009-10-29 11:05:05 +0800 | [diff] [blame] | 326 | kfree(context.ret.pointer); |
Huang Ying | eccddd3 | 2011-07-13 13:14:20 +0800 | [diff] [blame] | 327 | } |
| 328 | /* do we need to check other returned cap? Sounds no */ |
Shaohua Li | 3563ff9 | 2009-10-29 11:05:05 +0800 | [diff] [blame] | 329 | } |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | /* -------------------------------------------------------------------------- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | Notification Handling |
| 333 | -------------------------------------------------------------------------- */ |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | /** |
| 336 | * acpi_bus_notify |
| 337 | * --------------- |
| 338 | * Callback for all 'system-level' device notifications (values 0x00-0x7F). |
| 339 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 340 | static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 342 | struct acpi_device *device = NULL; |
Bjorn Helgaas | 6d27813 | 2009-04-30 09:35:37 -0600 | [diff] [blame] | 343 | struct acpi_driver *driver; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
Bjorn Helgaas | 02c37bd | 2009-05-22 11:43:41 -0600 | [diff] [blame] | 345 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n", |
| 346 | type, handle)); |
| 347 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | switch (type) { |
| 349 | |
| 350 | case ACPI_NOTIFY_BUS_CHECK: |
Rafael J. Wysocki | f4b734c | 2013-11-22 21:55:55 +0100 | [diff] [blame] | 351 | /* TBD */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | break; |
| 353 | |
| 354 | case ACPI_NOTIFY_DEVICE_CHECK: |
Rafael J. Wysocki | f4b734c | 2013-11-22 21:55:55 +0100 | [diff] [blame] | 355 | /* TBD */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | break; |
| 357 | |
| 358 | case ACPI_NOTIFY_DEVICE_WAKE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | /* TBD */ |
| 360 | break; |
| 361 | |
| 362 | case ACPI_NOTIFY_EJECT_REQUEST: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | /* TBD */ |
| 364 | break; |
| 365 | |
| 366 | case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | /* TBD: Exactly what does 'light' mean? */ |
| 368 | break; |
| 369 | |
| 370 | case ACPI_NOTIFY_FREQUENCY_MISMATCH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | /* TBD */ |
| 372 | break; |
| 373 | |
| 374 | case ACPI_NOTIFY_BUS_MODE_MISMATCH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | /* TBD */ |
| 376 | break; |
| 377 | |
| 378 | case ACPI_NOTIFY_POWER_FAULT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | /* TBD */ |
| 380 | break; |
| 381 | |
| 382 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 383 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 384 | "Received unknown/unsupported notification [%08x]\n", |
| 385 | type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | break; |
| 387 | } |
| 388 | |
Bjorn Helgaas | ff754e2 | 2009-05-22 11:43:56 -0600 | [diff] [blame] | 389 | acpi_bus_get_device(handle, &device); |
| 390 | if (device) { |
| 391 | driver = device->driver; |
| 392 | if (driver && driver->ops.notify && |
| 393 | (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) |
| 394 | driver->ops.notify(device, type); |
| 395 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | /* -------------------------------------------------------------------------- |
| 399 | Initialization/Cleanup |
| 400 | -------------------------------------------------------------------------- */ |
| 401 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 402 | static int __init acpi_bus_init_irq(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | { |
Bjorn Helgaas | 6a8c0af | 2013-06-03 18:20:24 +0000 | [diff] [blame] | 404 | acpi_status status; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 405 | char *message = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
Alexey Starikovskiy | aafbcd1 | 2007-02-10 01:32:16 -0500 | [diff] [blame] | 408 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | * Let the system know what interrupt model we are using by |
| 410 | * evaluating the \_PIC object, if exists. |
| 411 | */ |
| 412 | |
| 413 | switch (acpi_irq_model) { |
| 414 | case ACPI_IRQ_MODEL_PIC: |
| 415 | message = "PIC"; |
| 416 | break; |
| 417 | case ACPI_IRQ_MODEL_IOAPIC: |
| 418 | message = "IOAPIC"; |
| 419 | break; |
| 420 | case ACPI_IRQ_MODEL_IOSAPIC: |
| 421 | message = "IOSAPIC"; |
| 422 | break; |
John Keller | 3948ec9 | 2006-12-22 11:50:04 -0600 | [diff] [blame] | 423 | case ACPI_IRQ_MODEL_PLATFORM: |
| 424 | message = "platform specific model"; |
| 425 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | default: |
| 427 | printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n"); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 428 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message); |
| 432 | |
Jiang Liu | 0db9820 | 2013-06-29 00:24:39 +0800 | [diff] [blame] | 433 | status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { |
Thomas Renninger | a6fc672 | 2006-06-26 23:58:43 -0400 | [diff] [blame] | 435 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC")); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 436 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | } |
| 438 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 439 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 442 | u8 acpi_gbl_permanent_mmap; |
Alexey Starikovskiy | ad71860a | 2007-02-02 19:48:19 +0300 | [diff] [blame] | 443 | |
| 444 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 445 | void __init acpi_early_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | { |
Bjorn Helgaas | 6a8c0af | 2013-06-03 18:20:24 +0000 | [diff] [blame] | 447 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | |
| 449 | if (acpi_disabled) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 450 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 452 | printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); |
| 453 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | /* enable workarounds, unless strict ACPI spec. compliance */ |
| 455 | if (!acpi_strict) |
| 456 | acpi_gbl_enable_interpreter_slack = TRUE; |
| 457 | |
Alexey Starikovskiy | ad71860a | 2007-02-02 19:48:19 +0300 | [diff] [blame] | 458 | acpi_gbl_permanent_mmap = 1; |
| 459 | |
Lin Ming | aa2110c | 2010-04-08 14:34:27 +0800 | [diff] [blame] | 460 | /* |
| 461 | * If the machine falls into the DMI check table, |
| 462 | * DSDT will be copied to memory |
| 463 | */ |
| 464 | dmi_check_system(dsdt_dmi_table); |
| 465 | |
Alexey Starikovskiy | ad71860a | 2007-02-02 19:48:19 +0300 | [diff] [blame] | 466 | status = acpi_reallocate_root_table(); |
| 467 | if (ACPI_FAILURE(status)) { |
| 468 | printk(KERN_ERR PREFIX |
| 469 | "Unable to reallocate ACPI tables\n"); |
| 470 | goto error0; |
| 471 | } |
| 472 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | status = acpi_initialize_subsystem(); |
| 474 | if (ACPI_FAILURE(status)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 475 | printk(KERN_ERR PREFIX |
| 476 | "Unable to initialize the ACPI Interpreter\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | goto error0; |
| 478 | } |
| 479 | |
| 480 | status = acpi_load_tables(); |
| 481 | if (ACPI_FAILURE(status)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 482 | printk(KERN_ERR PREFIX |
| 483 | "Unable to load the System Description Tables\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | goto error0; |
| 485 | } |
| 486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | #ifdef CONFIG_X86 |
| 488 | if (!acpi_ioapic) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | /* compatible (0) means level (3) */ |
Alexey Starikovskiy | 5f3b1a8 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 490 | if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) { |
| 491 | acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK; |
| 492 | acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL; |
| 493 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | /* Set PIC-mode SCI trigger type */ |
Alexey Starikovskiy | cee324b | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 495 | acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt, |
Alexey Starikovskiy | 5f3b1a8 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 496 | (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | /* |
Alexey Starikovskiy | cee324b | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 499 | * now that acpi_gbl_FADT is initialized, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | * update it with result from INT_SRC_OVR parsing |
| 501 | */ |
Alexey Starikovskiy | cee324b | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 502 | acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | } |
| 504 | #endif |
| 505 | |
Rafael J. Wysocki | 4505a20 | 2011-11-06 14:20:42 +0100 | [diff] [blame] | 506 | status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | if (ACPI_FAILURE(status)) { |
| 508 | printk(KERN_ERR PREFIX "Unable to enable ACPI\n"); |
| 509 | goto error0; |
| 510 | } |
| 511 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 512 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 514 | error0: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | disable_acpi(); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 516 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | } |
| 518 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 519 | static int __init acpi_bus_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | { |
Bjorn Helgaas | 6a8c0af | 2013-06-03 18:20:24 +0000 | [diff] [blame] | 521 | int result; |
| 522 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | |
Jiri Slaby | 176f9c1 | 2009-03-04 11:55:27 -0800 | [diff] [blame] | 524 | acpi_os_initialize1(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
Rafael J. Wysocki | 4505a20 | 2011-11-06 14:20:42 +0100 | [diff] [blame] | 526 | status = acpi_enable_subsystem(ACPI_NO_ACPI_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | if (ACPI_FAILURE(status)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 528 | printk(KERN_ERR PREFIX |
| 529 | "Unable to start the ACPI Interpreter\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | goto error1; |
| 531 | } |
| 532 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | /* |
| 534 | * ACPI 2.0 requires the EC driver to be loaded and work before |
| 535 | * the EC device is found in the namespace (i.e. before acpi_initialize_objects() |
| 536 | * is called). |
| 537 | * |
Alexey Starikovskiy | aafbcd1 | 2007-02-10 01:32:16 -0500 | [diff] [blame] | 538 | * This is accomplished by looking for the ECDT table, and getting |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | * the EC parameters out of that. |
| 540 | */ |
| 541 | status = acpi_ec_ecdt_probe(); |
| 542 | /* Ignore result. Not having an ECDT is not fatal. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
| 544 | status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION); |
| 545 | if (ACPI_FAILURE(status)) { |
| 546 | printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n"); |
| 547 | goto error1; |
| 548 | } |
| 549 | |
Zhang Rui | b1d248d | 2010-10-26 10:06:54 +0800 | [diff] [blame] | 550 | /* |
Lin Ming | fc54ab7 | 2012-07-16 16:30:21 +0800 | [diff] [blame] | 551 | * _OSC method may exist in module level code, |
| 552 | * so it must be run after ACPI_FULL_INITIALIZATION |
| 553 | */ |
| 554 | acpi_bus_osc_support(); |
| 555 | |
| 556 | /* |
Zhang Rui | b1d248d | 2010-10-26 10:06:54 +0800 | [diff] [blame] | 557 | * _PDC control method may load dynamic SSDT tables, |
| 558 | * and we need to install the table handler before that. |
| 559 | */ |
| 560 | acpi_sysfs_init(); |
| 561 | |
Alex Chiang | 78f1699 | 2009-12-20 12:19:09 -0700 | [diff] [blame] | 562 | acpi_early_processor_set_pdc(); |
| 563 | |
Zhao Yakui | 455c879 | 2008-10-06 10:31:36 +0800 | [diff] [blame] | 564 | /* |
| 565 | * Maybe EC region is required at bus_scan/acpi_get_devices. So it |
| 566 | * is necessary to enable it as early as possible. |
| 567 | */ |
| 568 | acpi_boot_ec_enable(); |
| 569 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | printk(KERN_INFO PREFIX "Interpreter enabled\n"); |
| 571 | |
Alexey Starikovskiy | aafbcd1 | 2007-02-10 01:32:16 -0500 | [diff] [blame] | 572 | /* Initialize sleep structures */ |
| 573 | acpi_sleep_init(); |
| 574 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | /* |
| 576 | * Get the system interrupt model and evaluate \_PIC. |
| 577 | */ |
| 578 | result = acpi_bus_init_irq(); |
| 579 | if (result) |
| 580 | goto error1; |
| 581 | |
| 582 | /* |
| 583 | * Register the for all standard device notifications. |
| 584 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 585 | status = |
| 586 | acpi_install_notify_handler(ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY, |
| 587 | &acpi_bus_notify, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | if (ACPI_FAILURE(status)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 589 | printk(KERN_ERR PREFIX |
| 590 | "Unable to register for device notifications\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | goto error1; |
| 592 | } |
| 593 | |
| 594 | /* |
| 595 | * Create the top ACPI proc directory |
| 596 | */ |
| 597 | acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL); |
| 598 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 599 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
| 601 | /* Mimic structured exception handling */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 602 | error1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | acpi_terminate(); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 604 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | } |
| 606 | |
Greg Kroah-Hartman | 99e0d2f | 2007-11-02 16:19:59 -0700 | [diff] [blame] | 607 | struct kobject *acpi_kobj; |
Matthew Garrett | f2d4753 | 2012-01-31 13:19:19 -0500 | [diff] [blame] | 608 | EXPORT_SYMBOL_GPL(acpi_kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 610 | static int __init acpi_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | { |
Rafael J. Wysocki | 6831c6e | 2011-02-15 21:22:24 +0100 | [diff] [blame] | 612 | int result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | if (acpi_disabled) { |
| 615 | printk(KERN_INFO PREFIX "Interpreter disabled.\n"); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 616 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | } |
| 618 | |
Greg Kroah-Hartman | f62ed9e | 2007-11-05 13:16:15 -0800 | [diff] [blame] | 619 | acpi_kobj = kobject_create_and_add("acpi", firmware_kobj); |
Greg Kroah-Hartman | 99e0d2f | 2007-11-02 16:19:59 -0700 | [diff] [blame] | 620 | if (!acpi_kobj) { |
Harvey Harrison | 96b2dd1 | 2008-03-05 18:24:51 -0800 | [diff] [blame] | 621 | printk(KERN_WARNING "%s: kset create error\n", __func__); |
Greg Kroah-Hartman | 99e0d2f | 2007-11-02 16:19:59 -0700 | [diff] [blame] | 622 | acpi_kobj = NULL; |
| 623 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
Bjorn Helgaas | 0e46517 | 2009-03-24 16:50:09 -0600 | [diff] [blame] | 625 | init_acpi_device_notify(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | result = acpi_bus_init(); |
Rafael J. Wysocki | 6831c6e | 2011-02-15 21:22:24 +0100 | [diff] [blame] | 627 | if (result) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | disable_acpi(); |
Bjorn Helgaas | 81d0273 | 2009-03-24 16:49:38 -0600 | [diff] [blame] | 629 | return result; |
Rafael J. Wysocki | 6831c6e | 2011-02-15 21:22:24 +0100 | [diff] [blame] | 630 | } |
Bjorn Helgaas | 81d0273 | 2009-03-24 16:49:38 -0600 | [diff] [blame] | 631 | |
Rafael J. Wysocki | 6831c6e | 2011-02-15 21:22:24 +0100 | [diff] [blame] | 632 | pci_mmcfg_late_init(); |
Bjorn Helgaas | e747f27 | 2009-03-24 16:49:43 -0600 | [diff] [blame] | 633 | acpi_scan_init(); |
Bjorn Helgaas | a5f820f | 2009-03-24 16:49:48 -0600 | [diff] [blame] | 634 | acpi_ec_init(); |
Zhang Rui | a25ee92 | 2010-07-15 10:46:15 +0800 | [diff] [blame] | 635 | acpi_debugfs_init(); |
Bjorn Helgaas | 9cee43e | 2009-03-24 16:50:14 -0600 | [diff] [blame] | 636 | acpi_sleep_proc_init(); |
Bjorn Helgaas | 201b8c6 | 2009-03-24 16:50:19 -0600 | [diff] [blame] | 637 | acpi_wakeup_device_init(); |
Rafael J. Wysocki | 6831c6e | 2011-02-15 21:22:24 +0100 | [diff] [blame] | 638 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | } |
| 640 | |
| 641 | subsys_initcall(acpi_init); |