]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * acpi_osl.c - OS-dependent functions ($Revision: 83 $) | |
3 | * | |
4 | * Copyright (C) 2000 Andrew Henroid | |
5 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> | |
6 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
f1241c87 MW |
7 | * Copyright (c) 2008 Intel Corporation |
8 | * Author: Matthew Wilcox <willy@linux.intel.com> | |
1da177e4 LT |
9 | * |
10 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | * | |
26 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
27 | * | |
28 | */ | |
29 | ||
1da177e4 LT |
30 | #include <linux/module.h> |
31 | #include <linux/kernel.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/mm.h> | |
34 | #include <linux/pci.h> | |
1da177e4 LT |
35 | #include <linux/interrupt.h> |
36 | #include <linux/kmod.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/workqueue.h> | |
39 | #include <linux/nmi.h> | |
ad71860a | 40 | #include <linux/acpi.h> |
2d6d9fd3 | 41 | #include <linux/acpi_io.h> |
1da177e4 | 42 | #include <linux/efi.h> |
df92e695 TR |
43 | #include <linux/ioport.h> |
44 | #include <linux/list.h> | |
f1241c87 MW |
45 | #include <linux/jiffies.h> |
46 | #include <linux/semaphore.h> | |
47 | ||
48 | #include <asm/io.h> | |
49 | #include <asm/uaccess.h> | |
50 | ||
51 | #include <acpi/acpi.h> | |
52 | #include <acpi/acpi_bus.h> | |
53 | #include <acpi/processor.h> | |
1da177e4 | 54 | |
1da177e4 | 55 | #define _COMPONENT ACPI_OS_SERVICES |
f52fd66d | 56 | ACPI_MODULE_NAME("osl"); |
1da177e4 | 57 | #define PREFIX "ACPI: " |
4be44fcd LB |
58 | struct acpi_os_dpc { |
59 | acpi_osd_exec_callback function; | |
60 | void *context; | |
65f27f38 | 61 | struct work_struct work; |
9ac61856 | 62 | int wait; |
1da177e4 LT |
63 | }; |
64 | ||
65 | #ifdef CONFIG_ACPI_CUSTOM_DSDT | |
66 | #include CONFIG_ACPI_CUSTOM_DSDT_FILE | |
67 | #endif | |
68 | ||
69 | #ifdef ENABLE_DEBUGGER | |
70 | #include <linux/kdb.h> | |
71 | ||
72 | /* stuff for debugger support */ | |
73 | int acpi_in_debugger; | |
74 | EXPORT_SYMBOL(acpi_in_debugger); | |
75 | ||
76 | extern char line_buf[80]; | |
4be44fcd | 77 | #endif /*ENABLE_DEBUGGER */ |
1da177e4 LT |
78 | |
79 | static unsigned int acpi_irq_irq; | |
80 | static acpi_osd_handler acpi_irq_handler; | |
81 | static void *acpi_irq_context; | |
82 | static struct workqueue_struct *kacpid_wq; | |
88db5e14 | 83 | static struct workqueue_struct *kacpi_notify_wq; |
c02256be | 84 | static struct workqueue_struct *kacpi_hotplug_wq; |
1da177e4 | 85 | |
df92e695 TR |
86 | struct acpi_res_list { |
87 | resource_size_t start; | |
88 | resource_size_t end; | |
89 | acpi_adr_space_type resource_type; /* IO port, System memory, ...*/ | |
90 | char name[5]; /* only can have a length of 4 chars, make use of this | |
91 | one instead of res->name, no need to kalloc then */ | |
92 | struct list_head resource_list; | |
a5fe1a03 | 93 | int count; |
df92e695 TR |
94 | }; |
95 | ||
96 | static LIST_HEAD(resource_list_head); | |
97 | static DEFINE_SPINLOCK(acpi_res_lock); | |
98 | ||
620242ae MS |
99 | /* |
100 | * This list of permanent mappings is for memory that may be accessed from | |
101 | * interrupt context, where we can't do the ioremap(). | |
102 | */ | |
103 | struct acpi_ioremap { | |
104 | struct list_head list; | |
105 | void __iomem *virt; | |
106 | acpi_physical_address phys; | |
107 | acpi_size size; | |
4a3cba5e | 108 | struct kref ref; |
620242ae MS |
109 | }; |
110 | ||
111 | static LIST_HEAD(acpi_ioremaps); | |
7bbb8903 | 112 | static DEFINE_MUTEX(acpi_ioremap_lock); |
620242ae | 113 | |
b0ed7a91 | 114 | static void __init acpi_osi_setup_late(void); |
ae00d812 | 115 | |
d4b7dc49 | 116 | /* |
a6e0887f | 117 | * The story of _OSI(Linux) |
d4b7dc49 | 118 | * |
a6e0887f LB |
119 | * From pre-history through Linux-2.6.22, |
120 | * Linux responded TRUE upon a BIOS OSI(Linux) query. | |
d4b7dc49 | 121 | * |
a6e0887f LB |
122 | * Unfortunately, reference BIOS writers got wind of this |
123 | * and put OSI(Linux) in their example code, quickly exposing | |
124 | * this string as ill-conceived and opening the door to | |
125 | * an un-bounded number of BIOS incompatibilities. | |
d4b7dc49 | 126 | * |
a6e0887f LB |
127 | * For example, OSI(Linux) was used on resume to re-POST a |
128 | * video card on one system, because Linux at that time | |
129 | * could not do a speedy restore in its native driver. | |
130 | * But then upon gaining quick native restore capability, | |
131 | * Linux has no way to tell the BIOS to skip the time-consuming | |
132 | * POST -- putting Linux at a permanent performance disadvantage. | |
133 | * On another system, the BIOS writer used OSI(Linux) | |
134 | * to infer native OS support for IPMI! On other systems, | |
135 | * OSI(Linux) simply got in the way of Linux claiming to | |
136 | * be compatible with other operating systems, exposing | |
137 | * BIOS issues such as skipped device initialization. | |
d4b7dc49 | 138 | * |
a6e0887f LB |
139 | * So "Linux" turned out to be a really poor chose of |
140 | * OSI string, and from Linux-2.6.23 onward we respond FALSE. | |
d4b7dc49 LB |
141 | * |
142 | * BIOS writers should NOT query _OSI(Linux) on future systems. | |
a6e0887f LB |
143 | * Linux will complain on the console when it sees it, and return FALSE. |
144 | * To get Linux to return TRUE for your system will require | |
145 | * a kernel source update to add a DMI entry, | |
146 | * or boot with "acpi_osi=Linux" | |
d4b7dc49 | 147 | */ |
d4b7dc49 | 148 | |
1d15d84e | 149 | static struct osi_linux { |
d4b7dc49 LB |
150 | unsigned int enable:1; |
151 | unsigned int dmi:1; | |
152 | unsigned int cmdline:1; | |
d90aa92c | 153 | } osi_linux = {0, 0, 0}; |
f507654d | 154 | |
b0ed7a91 LM |
155 | static u32 acpi_osi_handler(acpi_string interface, u32 supported) |
156 | { | |
157 | if (!strcmp("Linux", interface)) { | |
158 | ||
3af283e1 | 159 | printk(KERN_NOTICE FW_BUG PREFIX |
b0ed7a91 LM |
160 | "BIOS _OSI(Linux) query %s%s\n", |
161 | osi_linux.enable ? "honored" : "ignored", | |
162 | osi_linux.cmdline ? " via cmdline" : | |
163 | osi_linux.dmi ? " via DMI" : ""); | |
164 | } | |
165 | ||
166 | return supported; | |
167 | } | |
168 | ||
9a47cdb1 BH |
169 | static void __init acpi_request_region (struct acpi_generic_address *addr, |
170 | unsigned int length, char *desc) | |
171 | { | |
9a47cdb1 BH |
172 | if (!addr->address || !length) |
173 | return; | |
174 | ||
cfa806f0 | 175 | /* Resources are never freed */ |
eee3c859 | 176 | if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_IO) |
cfa806f0 | 177 | request_region(addr->address, length, desc); |
eee3c859 | 178 | else if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) |
cfa806f0 | 179 | request_mem_region(addr->address, length, desc); |
9a47cdb1 BH |
180 | } |
181 | ||
182 | static int __init acpi_reserve_resources(void) | |
183 | { | |
eee3c859 | 184 | acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block, acpi_gbl_FADT.pm1_event_length, |
9a47cdb1 BH |
185 | "ACPI PM1a_EVT_BLK"); |
186 | ||
eee3c859 | 187 | acpi_request_region(&acpi_gbl_FADT.xpm1b_event_block, acpi_gbl_FADT.pm1_event_length, |
9a47cdb1 BH |
188 | "ACPI PM1b_EVT_BLK"); |
189 | ||
eee3c859 | 190 | acpi_request_region(&acpi_gbl_FADT.xpm1a_control_block, acpi_gbl_FADT.pm1_control_length, |
9a47cdb1 BH |
191 | "ACPI PM1a_CNT_BLK"); |
192 | ||
eee3c859 | 193 | acpi_request_region(&acpi_gbl_FADT.xpm1b_control_block, acpi_gbl_FADT.pm1_control_length, |
9a47cdb1 BH |
194 | "ACPI PM1b_CNT_BLK"); |
195 | ||
eee3c859 LB |
196 | if (acpi_gbl_FADT.pm_timer_length == 4) |
197 | acpi_request_region(&acpi_gbl_FADT.xpm_timer_block, 4, "ACPI PM_TMR"); | |
9a47cdb1 | 198 | |
eee3c859 | 199 | acpi_request_region(&acpi_gbl_FADT.xpm2_control_block, acpi_gbl_FADT.pm2_control_length, |
9a47cdb1 BH |
200 | "ACPI PM2_CNT_BLK"); |
201 | ||
202 | /* Length of GPE blocks must be a non-negative multiple of 2 */ | |
203 | ||
eee3c859 LB |
204 | if (!(acpi_gbl_FADT.gpe0_block_length & 0x1)) |
205 | acpi_request_region(&acpi_gbl_FADT.xgpe0_block, | |
206 | acpi_gbl_FADT.gpe0_block_length, "ACPI GPE0_BLK"); | |
9a47cdb1 | 207 | |
eee3c859 LB |
208 | if (!(acpi_gbl_FADT.gpe1_block_length & 0x1)) |
209 | acpi_request_region(&acpi_gbl_FADT.xgpe1_block, | |
210 | acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK"); | |
9a47cdb1 BH |
211 | |
212 | return 0; | |
213 | } | |
214 | device_initcall(acpi_reserve_resources); | |
215 | ||
4be44fcd | 216 | void acpi_os_printf(const char *fmt, ...) |
1da177e4 LT |
217 | { |
218 | va_list args; | |
219 | va_start(args, fmt); | |
220 | acpi_os_vprintf(fmt, args); | |
221 | va_end(args); | |
222 | } | |
4be44fcd | 223 | |
4be44fcd | 224 | void acpi_os_vprintf(const char *fmt, va_list args) |
1da177e4 LT |
225 | { |
226 | static char buffer[512]; | |
4be44fcd | 227 | |
1da177e4 LT |
228 | vsprintf(buffer, fmt, args); |
229 | ||
230 | #ifdef ENABLE_DEBUGGER | |
231 | if (acpi_in_debugger) { | |
232 | kdb_printf("%s", buffer); | |
233 | } else { | |
4d939155 | 234 | printk(KERN_CONT "%s", buffer); |
1da177e4 LT |
235 | } |
236 | #else | |
4d939155 | 237 | printk(KERN_CONT "%s", buffer); |
1da177e4 LT |
238 | #endif |
239 | } | |
240 | ||
ad71860a | 241 | acpi_physical_address __init acpi_os_get_root_pointer(void) |
1da177e4 LT |
242 | { |
243 | if (efi_enabled) { | |
b2c99e3c | 244 | if (efi.acpi20 != EFI_INVALID_TABLE_ADDR) |
ad71860a | 245 | return efi.acpi20; |
b2c99e3c | 246 | else if (efi.acpi != EFI_INVALID_TABLE_ADDR) |
ad71860a | 247 | return efi.acpi; |
1da177e4 | 248 | else { |
4be44fcd LB |
249 | printk(KERN_ERR PREFIX |
250 | "System description tables not found\n"); | |
ad71860a | 251 | return 0; |
1da177e4 | 252 | } |
239665a3 LB |
253 | } else { |
254 | acpi_physical_address pa = 0; | |
255 | ||
256 | acpi_find_root_pointer(&pa); | |
257 | return pa; | |
258 | } | |
1da177e4 LT |
259 | } |
260 | ||
78cdb3ed | 261 | /* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ |
4a3cba5e MS |
262 | static struct acpi_ioremap * |
263 | acpi_map_lookup(acpi_physical_address phys, acpi_size size) | |
620242ae MS |
264 | { |
265 | struct acpi_ioremap *map; | |
266 | ||
78cdb3ed | 267 | list_for_each_entry_rcu(map, &acpi_ioremaps, list) |
620242ae MS |
268 | if (map->phys <= phys && |
269 | phys + size <= map->phys + map->size) | |
4a3cba5e MS |
270 | return map; |
271 | ||
272 | return NULL; | |
273 | } | |
274 | ||
275 | /* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ | |
276 | static void __iomem * | |
277 | acpi_map_vaddr_lookup(acpi_physical_address phys, unsigned int size) | |
278 | { | |
279 | struct acpi_ioremap *map; | |
280 | ||
281 | map = acpi_map_lookup(phys, size); | |
282 | if (map) | |
283 | return map->virt + (phys - map->phys); | |
620242ae MS |
284 | |
285 | return NULL; | |
286 | } | |
287 | ||
78cdb3ed | 288 | /* Must be called with 'acpi_ioremap_lock' or RCU read lock held. */ |
620242ae MS |
289 | static struct acpi_ioremap * |
290 | acpi_map_lookup_virt(void __iomem *virt, acpi_size size) | |
291 | { | |
292 | struct acpi_ioremap *map; | |
293 | ||
78cdb3ed | 294 | list_for_each_entry_rcu(map, &acpi_ioremaps, list) |
4a3cba5e MS |
295 | if (map->virt <= virt && |
296 | virt + size <= map->virt + map->size) | |
620242ae MS |
297 | return map; |
298 | ||
299 | return NULL; | |
300 | } | |
301 | ||
2fdf0741 JB |
302 | void __iomem *__init_refok |
303 | acpi_os_map_memory(acpi_physical_address phys, acpi_size size) | |
1da177e4 | 304 | { |
4a3cba5e | 305 | struct acpi_ioremap *map, *tmp_map; |
620242ae | 306 | void __iomem *virt; |
2d6d9fd3 RW |
307 | acpi_physical_address pg_off; |
308 | acpi_size pg_sz; | |
620242ae | 309 | |
9f4fd61f BH |
310 | if (phys > ULONG_MAX) { |
311 | printk(KERN_ERR PREFIX "Cannot map memory that high\n"); | |
70c0846e | 312 | return NULL; |
1da177e4 | 313 | } |
620242ae MS |
314 | |
315 | if (!acpi_gbl_permanent_mmap) | |
ad71860a | 316 | return __acpi_map_table((unsigned long)phys, size); |
620242ae MS |
317 | |
318 | map = kzalloc(sizeof(*map), GFP_KERNEL); | |
319 | if (!map) | |
320 | return NULL; | |
321 | ||
4a3cba5e MS |
322 | pg_off = round_down(phys, PAGE_SIZE); |
323 | pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off; | |
2d6d9fd3 | 324 | virt = acpi_os_ioremap(pg_off, pg_sz); |
620242ae MS |
325 | if (!virt) { |
326 | kfree(map); | |
327 | return NULL; | |
328 | } | |
329 | ||
330 | INIT_LIST_HEAD(&map->list); | |
331 | map->virt = virt; | |
4a3cba5e MS |
332 | map->phys = pg_off; |
333 | map->size = pg_sz; | |
334 | kref_init(&map->ref); | |
620242ae | 335 | |
7bbb8903 | 336 | mutex_lock(&acpi_ioremap_lock); |
4a3cba5e MS |
337 | /* Check if page has already been mapped. */ |
338 | tmp_map = acpi_map_lookup(phys, size); | |
339 | if (tmp_map) { | |
340 | kref_get(&tmp_map->ref); | |
7bbb8903 | 341 | mutex_unlock(&acpi_ioremap_lock); |
4a3cba5e MS |
342 | iounmap(map->virt); |
343 | kfree(map); | |
344 | return tmp_map->virt + (phys - tmp_map->phys); | |
345 | } | |
78cdb3ed | 346 | list_add_tail_rcu(&map->list, &acpi_ioremaps); |
7bbb8903 | 347 | mutex_unlock(&acpi_ioremap_lock); |
620242ae | 348 | |
4a3cba5e | 349 | return map->virt + (phys - map->phys); |
1da177e4 | 350 | } |
55a82ab3 | 351 | EXPORT_SYMBOL_GPL(acpi_os_map_memory); |
1da177e4 | 352 | |
4a3cba5e MS |
353 | static void acpi_kref_del_iomap(struct kref *ref) |
354 | { | |
355 | struct acpi_ioremap *map; | |
356 | ||
357 | map = container_of(ref, struct acpi_ioremap, ref); | |
358 | list_del_rcu(&map->list); | |
359 | } | |
360 | ||
7fe135dc RW |
361 | static void acpi_os_remove_map(struct acpi_ioremap *map) |
362 | { | |
363 | synchronize_rcu(); | |
364 | iounmap(map->virt); | |
365 | kfree(map); | |
366 | } | |
367 | ||
0d3a9cf5 | 368 | void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size) |
1da177e4 | 369 | { |
620242ae | 370 | struct acpi_ioremap *map; |
4a3cba5e | 371 | int del; |
620242ae MS |
372 | |
373 | if (!acpi_gbl_permanent_mmap) { | |
7d97277b | 374 | __acpi_unmap_table(virt, size); |
620242ae MS |
375 | return; |
376 | } | |
377 | ||
7bbb8903 | 378 | mutex_lock(&acpi_ioremap_lock); |
620242ae MS |
379 | map = acpi_map_lookup_virt(virt, size); |
380 | if (!map) { | |
7bbb8903 | 381 | mutex_unlock(&acpi_ioremap_lock); |
7fe135dc | 382 | WARN(true, PREFIX "%s: bad address %p\n", __func__, virt); |
620242ae MS |
383 | return; |
384 | } | |
4a3cba5e | 385 | del = kref_put(&map->ref, acpi_kref_del_iomap); |
7bbb8903 | 386 | mutex_unlock(&acpi_ioremap_lock); |
620242ae | 387 | |
7fe135dc RW |
388 | if (del) |
389 | acpi_os_remove_map(map); | |
1da177e4 | 390 | } |
55a82ab3 | 391 | EXPORT_SYMBOL_GPL(acpi_os_unmap_memory); |
1da177e4 | 392 | |
0d3a9cf5 | 393 | void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size) |
7d97277b YL |
394 | { |
395 | if (!acpi_gbl_permanent_mmap) | |
396 | __acpi_unmap_table(virt, size); | |
397 | } | |
398 | ||
073b4964 | 399 | static int acpi_os_map_generic_address(struct acpi_generic_address *addr) |
29718521 MS |
400 | { |
401 | void __iomem *virt; | |
402 | ||
403 | if (addr->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) | |
404 | return 0; | |
405 | ||
406 | if (!addr->address || !addr->bit_width) | |
407 | return -EINVAL; | |
408 | ||
409 | virt = acpi_os_map_memory(addr->address, addr->bit_width / 8); | |
410 | if (!virt) | |
411 | return -EIO; | |
412 | ||
413 | return 0; | |
414 | } | |
29718521 | 415 | |
073b4964 | 416 | static void acpi_os_unmap_generic_address(struct acpi_generic_address *addr) |
29718521 | 417 | { |
7fe135dc RW |
418 | struct acpi_ioremap *map; |
419 | int del; | |
29718521 MS |
420 | |
421 | if (addr->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) | |
422 | return; | |
423 | ||
424 | if (!addr->address || !addr->bit_width) | |
425 | return; | |
426 | ||
7bbb8903 | 427 | mutex_lock(&acpi_ioremap_lock); |
7fe135dc RW |
428 | map = acpi_map_lookup(addr->address, addr->bit_width / 8); |
429 | if (!map) { | |
430 | mutex_unlock(&acpi_ioremap_lock); | |
431 | return; | |
432 | } | |
433 | del = kref_put(&map->ref, acpi_kref_del_iomap); | |
7bbb8903 | 434 | mutex_unlock(&acpi_ioremap_lock); |
29718521 | 435 | |
7fe135dc RW |
436 | if (del) |
437 | acpi_os_remove_map(map); | |
29718521 | 438 | } |
29718521 | 439 | |
1da177e4 LT |
440 | #ifdef ACPI_FUTURE_USAGE |
441 | acpi_status | |
4be44fcd | 442 | acpi_os_get_physical_address(void *virt, acpi_physical_address * phys) |
1da177e4 | 443 | { |
4be44fcd | 444 | if (!phys || !virt) |
1da177e4 LT |
445 | return AE_BAD_PARAMETER; |
446 | ||
447 | *phys = virt_to_phys(virt); | |
448 | ||
449 | return AE_OK; | |
450 | } | |
451 | #endif | |
452 | ||
453 | #define ACPI_MAX_OVERRIDE_LEN 100 | |
454 | ||
455 | static char acpi_os_name[ACPI_MAX_OVERRIDE_LEN]; | |
456 | ||
457 | acpi_status | |
4be44fcd LB |
458 | acpi_os_predefined_override(const struct acpi_predefined_names *init_val, |
459 | acpi_string * new_val) | |
1da177e4 LT |
460 | { |
461 | if (!init_val || !new_val) | |
462 | return AE_BAD_PARAMETER; | |
463 | ||
464 | *new_val = NULL; | |
4be44fcd | 465 | if (!memcmp(init_val->name, "_OS_", 4) && strlen(acpi_os_name)) { |
1da177e4 | 466 | printk(KERN_INFO PREFIX "Overriding _OS definition to '%s'\n", |
4be44fcd | 467 | acpi_os_name); |
1da177e4 LT |
468 | *new_val = acpi_os_name; |
469 | } | |
470 | ||
471 | return AE_OK; | |
472 | } | |
473 | ||
474 | acpi_status | |
4be44fcd LB |
475 | acpi_os_table_override(struct acpi_table_header * existing_table, |
476 | struct acpi_table_header ** new_table) | |
1da177e4 LT |
477 | { |
478 | if (!existing_table || !new_table) | |
479 | return AE_BAD_PARAMETER; | |
480 | ||
71fc47a9 MG |
481 | *new_table = NULL; |
482 | ||
1da177e4 LT |
483 | #ifdef CONFIG_ACPI_CUSTOM_DSDT |
484 | if (strncmp(existing_table->signature, "DSDT", 4) == 0) | |
4be44fcd | 485 | *new_table = (struct acpi_table_header *)AmlCode; |
1da177e4 | 486 | #endif |
6ed31e92 ÉP |
487 | if (*new_table != NULL) { |
488 | printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], " | |
489 | "this is unsafe: tainting kernel\n", | |
490 | existing_table->signature, | |
491 | existing_table->oem_table_id); | |
492 | add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); | |
493 | } | |
1da177e4 LT |
494 | return AE_OK; |
495 | } | |
496 | ||
7d12e780 | 497 | static irqreturn_t acpi_irq(int irq, void *dev_id) |
1da177e4 | 498 | { |
5229e87d LB |
499 | u32 handled; |
500 | ||
501 | handled = (*acpi_irq_handler) (acpi_irq_context); | |
502 | ||
503 | if (handled) { | |
504 | acpi_irq_handled++; | |
505 | return IRQ_HANDLED; | |
88bea188 LB |
506 | } else { |
507 | acpi_irq_not_handled++; | |
5229e87d | 508 | return IRQ_NONE; |
88bea188 | 509 | } |
1da177e4 LT |
510 | } |
511 | ||
512 | acpi_status | |
4be44fcd LB |
513 | acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler, |
514 | void *context) | |
1da177e4 LT |
515 | { |
516 | unsigned int irq; | |
517 | ||
5229e87d LB |
518 | acpi_irq_stats_init(); |
519 | ||
1da177e4 LT |
520 | /* |
521 | * Ignore the GSI from the core, and use the value in our copy of the | |
522 | * FADT. It may not be the same if an interrupt source override exists | |
523 | * for the SCI. | |
524 | */ | |
cee324b1 | 525 | gsi = acpi_gbl_FADT.sci_interrupt; |
1da177e4 LT |
526 | if (acpi_gsi_to_irq(gsi, &irq) < 0) { |
527 | printk(KERN_ERR PREFIX "SCI (ACPI GSI %d) not registered\n", | |
528 | gsi); | |
529 | return AE_OK; | |
530 | } | |
531 | ||
532 | acpi_irq_handler = handler; | |
533 | acpi_irq_context = context; | |
dace1453 | 534 | if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) { |
1da177e4 LT |
535 | printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq); |
536 | return AE_NOT_ACQUIRED; | |
537 | } | |
538 | acpi_irq_irq = irq; | |
539 | ||
540 | return AE_OK; | |
541 | } | |
542 | ||
4be44fcd | 543 | acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler) |
1da177e4 LT |
544 | { |
545 | if (irq) { | |
546 | free_irq(irq, acpi_irq); | |
547 | acpi_irq_handler = NULL; | |
548 | acpi_irq_irq = 0; | |
549 | } | |
550 | ||
551 | return AE_OK; | |
552 | } | |
553 | ||
554 | /* | |
555 | * Running in interpreter thread context, safe to sleep | |
556 | */ | |
557 | ||
439913ff | 558 | void acpi_os_sleep(u64 ms) |
1da177e4 | 559 | { |
01a527ec | 560 | schedule_timeout_interruptible(msecs_to_jiffies(ms)); |
1da177e4 | 561 | } |
4be44fcd | 562 | |
4be44fcd | 563 | void acpi_os_stall(u32 us) |
1da177e4 LT |
564 | { |
565 | while (us) { | |
566 | u32 delay = 1000; | |
567 | ||
568 | if (delay > us) | |
569 | delay = us; | |
570 | udelay(delay); | |
571 | touch_nmi_watchdog(); | |
572 | us -= delay; | |
573 | } | |
574 | } | |
4be44fcd | 575 | |
1da177e4 LT |
576 | /* |
577 | * Support ACPI 3.0 AML Timer operand | |
578 | * Returns 64-bit free-running, monotonically increasing timer | |
579 | * with 100ns granularity | |
580 | */ | |
4be44fcd | 581 | u64 acpi_os_get_timer(void) |
1da177e4 LT |
582 | { |
583 | static u64 t; | |
584 | ||
585 | #ifdef CONFIG_HPET | |
586 | /* TBD: use HPET if available */ | |
587 | #endif | |
588 | ||
589 | #ifdef CONFIG_X86_PM_TIMER | |
590 | /* TBD: default to PM timer if HPET was not available */ | |
591 | #endif | |
592 | if (!t) | |
593 | printk(KERN_ERR PREFIX "acpi_os_get_timer() TBD\n"); | |
594 | ||
595 | return ++t; | |
596 | } | |
597 | ||
4be44fcd | 598 | acpi_status acpi_os_read_port(acpi_io_address port, u32 * value, u32 width) |
1da177e4 LT |
599 | { |
600 | u32 dummy; | |
601 | ||
602 | if (!value) | |
603 | value = &dummy; | |
604 | ||
49fbabf5 ZY |
605 | *value = 0; |
606 | if (width <= 8) { | |
4be44fcd | 607 | *(u8 *) value = inb(port); |
49fbabf5 | 608 | } else if (width <= 16) { |
4be44fcd | 609 | *(u16 *) value = inw(port); |
49fbabf5 | 610 | } else if (width <= 32) { |
4be44fcd | 611 | *(u32 *) value = inl(port); |
49fbabf5 | 612 | } else { |
1da177e4 LT |
613 | BUG(); |
614 | } | |
615 | ||
616 | return AE_OK; | |
617 | } | |
4be44fcd | 618 | |
1da177e4 LT |
619 | EXPORT_SYMBOL(acpi_os_read_port); |
620 | ||
4be44fcd | 621 | acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width) |
1da177e4 | 622 | { |
49fbabf5 | 623 | if (width <= 8) { |
1da177e4 | 624 | outb(value, port); |
49fbabf5 | 625 | } else if (width <= 16) { |
1da177e4 | 626 | outw(value, port); |
49fbabf5 | 627 | } else if (width <= 32) { |
1da177e4 | 628 | outl(value, port); |
49fbabf5 | 629 | } else { |
1da177e4 LT |
630 | BUG(); |
631 | } | |
632 | ||
633 | return AE_OK; | |
634 | } | |
4be44fcd | 635 | |
1da177e4 LT |
636 | EXPORT_SYMBOL(acpi_os_write_port); |
637 | ||
638 | acpi_status | |
4be44fcd | 639 | acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) |
1da177e4 | 640 | { |
4be44fcd | 641 | void __iomem *virt_addr; |
884b821f RW |
642 | unsigned int size = width / 8; |
643 | bool unmap = false; | |
644 | u32 dummy; | |
620242ae | 645 | |
78cdb3ed | 646 | rcu_read_lock(); |
620242ae | 647 | virt_addr = acpi_map_vaddr_lookup(phys_addr, size); |
620242ae | 648 | if (!virt_addr) { |
884b821f | 649 | rcu_read_unlock(); |
2d6d9fd3 | 650 | virt_addr = acpi_os_ioremap(phys_addr, size); |
884b821f RW |
651 | if (!virt_addr) |
652 | return AE_BAD_ADDRESS; | |
653 | unmap = true; | |
620242ae | 654 | } |
884b821f | 655 | |
1da177e4 LT |
656 | if (!value) |
657 | value = &dummy; | |
658 | ||
659 | switch (width) { | |
660 | case 8: | |
4be44fcd | 661 | *(u8 *) value = readb(virt_addr); |
1da177e4 LT |
662 | break; |
663 | case 16: | |
4be44fcd | 664 | *(u16 *) value = readw(virt_addr); |
1da177e4 LT |
665 | break; |
666 | case 32: | |
4be44fcd | 667 | *(u32 *) value = readl(virt_addr); |
1da177e4 LT |
668 | break; |
669 | default: | |
670 | BUG(); | |
671 | } | |
672 | ||
620242ae MS |
673 | if (unmap) |
674 | iounmap(virt_addr); | |
884b821f RW |
675 | else |
676 | rcu_read_unlock(); | |
1da177e4 LT |
677 | |
678 | return AE_OK; | |
679 | } | |
680 | ||
681 | acpi_status | |
4be44fcd | 682 | acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) |
1da177e4 | 683 | { |
4be44fcd | 684 | void __iomem *virt_addr; |
884b821f RW |
685 | unsigned int size = width / 8; |
686 | bool unmap = false; | |
620242ae | 687 | |
78cdb3ed | 688 | rcu_read_lock(); |
620242ae | 689 | virt_addr = acpi_map_vaddr_lookup(phys_addr, size); |
620242ae | 690 | if (!virt_addr) { |
884b821f | 691 | rcu_read_unlock(); |
2d6d9fd3 | 692 | virt_addr = acpi_os_ioremap(phys_addr, size); |
884b821f RW |
693 | if (!virt_addr) |
694 | return AE_BAD_ADDRESS; | |
695 | unmap = true; | |
620242ae | 696 | } |
1da177e4 LT |
697 | |
698 | switch (width) { | |
699 | case 8: | |
700 | writeb(value, virt_addr); | |
701 | break; | |
702 | case 16: | |
703 | writew(value, virt_addr); | |
704 | break; | |
705 | case 32: | |
706 | writel(value, virt_addr); | |
707 | break; | |
708 | default: | |
709 | BUG(); | |
710 | } | |
711 | ||
620242ae MS |
712 | if (unmap) |
713 | iounmap(virt_addr); | |
884b821f RW |
714 | else |
715 | rcu_read_unlock(); | |
1da177e4 LT |
716 | |
717 | return AE_OK; | |
718 | } | |
719 | ||
1da177e4 | 720 | acpi_status |
4be44fcd | 721 | acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, |
c5f0231e | 722 | u64 *value, u32 width) |
1da177e4 LT |
723 | { |
724 | int result, size; | |
c5f0231e | 725 | u32 value32; |
1da177e4 LT |
726 | |
727 | if (!value) | |
728 | return AE_BAD_PARAMETER; | |
729 | ||
730 | switch (width) { | |
731 | case 8: | |
732 | size = 1; | |
733 | break; | |
734 | case 16: | |
735 | size = 2; | |
736 | break; | |
737 | case 32: | |
738 | size = 4; | |
739 | break; | |
740 | default: | |
741 | return AE_ERROR; | |
742 | } | |
743 | ||
b6ce068a MW |
744 | result = raw_pci_read(pci_id->segment, pci_id->bus, |
745 | PCI_DEVFN(pci_id->device, pci_id->function), | |
c5f0231e BM |
746 | reg, size, &value32); |
747 | *value = value32; | |
1da177e4 LT |
748 | |
749 | return (result ? AE_ERROR : AE_OK); | |
750 | } | |
4be44fcd | 751 | |
1da177e4 | 752 | acpi_status |
4be44fcd | 753 | acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg, |
439913ff | 754 | u64 value, u32 width) |
1da177e4 LT |
755 | { |
756 | int result, size; | |
757 | ||
758 | switch (width) { | |
759 | case 8: | |
760 | size = 1; | |
761 | break; | |
762 | case 16: | |
763 | size = 2; | |
764 | break; | |
765 | case 32: | |
766 | size = 4; | |
767 | break; | |
768 | default: | |
769 | return AE_ERROR; | |
770 | } | |
771 | ||
b6ce068a MW |
772 | result = raw_pci_write(pci_id->segment, pci_id->bus, |
773 | PCI_DEVFN(pci_id->device, pci_id->function), | |
774 | reg, size, value); | |
1da177e4 LT |
775 | |
776 | return (result ? AE_ERROR : AE_OK); | |
777 | } | |
778 | ||
65f27f38 | 779 | static void acpi_os_execute_deferred(struct work_struct *work) |
88db5e14 AS |
780 | { |
781 | struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); | |
88db5e14 | 782 | |
9ac61856 BH |
783 | if (dpc->wait) |
784 | acpi_os_wait_events_complete(NULL); | |
19cd847a ZR |
785 | |
786 | dpc->function(dpc->context); | |
787 | kfree(dpc); | |
19cd847a ZR |
788 | } |
789 | ||
b8d35192 AS |
790 | /******************************************************************************* |
791 | * | |
792 | * FUNCTION: acpi_os_execute | |
793 | * | |
794 | * PARAMETERS: Type - Type of the callback | |
795 | * Function - Function to be executed | |
796 | * Context - Function parameters | |
797 | * | |
798 | * RETURN: Status | |
799 | * | |
800 | * DESCRIPTION: Depending on type, either queues function for deferred execution or | |
801 | * immediately executes function on a separate thread. | |
802 | * | |
803 | ******************************************************************************/ | |
804 | ||
19cd847a ZR |
805 | static acpi_status __acpi_os_execute(acpi_execute_type type, |
806 | acpi_osd_exec_callback function, void *context, int hp) | |
1da177e4 | 807 | { |
4be44fcd LB |
808 | acpi_status status = AE_OK; |
809 | struct acpi_os_dpc *dpc; | |
17bc54ee | 810 | struct workqueue_struct *queue; |
19cd847a | 811 | int ret; |
72945b2b LB |
812 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
813 | "Scheduling function [%p(%p)] for deferred execution.\n", | |
814 | function, context)); | |
1da177e4 | 815 | |
1da177e4 LT |
816 | /* |
817 | * Allocate/initialize DPC structure. Note that this memory will be | |
65f27f38 | 818 | * freed by the callee. The kernel handles the work_struct list in a |
1da177e4 LT |
819 | * way that allows us to also free its memory inside the callee. |
820 | * Because we may want to schedule several tasks with different | |
821 | * parameters we can't use the approach some kernel code uses of | |
65f27f38 | 822 | * having a static work_struct. |
1da177e4 | 823 | */ |
72945b2b | 824 | |
65f27f38 | 825 | dpc = kmalloc(sizeof(struct acpi_os_dpc), GFP_ATOMIC); |
1da177e4 | 826 | if (!dpc) |
889c78be | 827 | return AE_NO_MEMORY; |
b976fe19 | 828 | |
1da177e4 LT |
829 | dpc->function = function; |
830 | dpc->context = context; | |
b976fe19 | 831 | |
c02256be ZR |
832 | /* |
833 | * We can't run hotplug code in keventd_wq/kacpid_wq/kacpid_notify_wq | |
834 | * because the hotplug code may call driver .remove() functions, | |
835 | * which invoke flush_scheduled_work/acpi_os_wait_events_complete | |
836 | * to flush these workqueues. | |
837 | */ | |
838 | queue = hp ? kacpi_hotplug_wq : | |
839 | (type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq); | |
9ac61856 | 840 | dpc->wait = hp ? 1 : 0; |
bc73675b ZR |
841 | |
842 | if (queue == kacpi_hotplug_wq) | |
843 | INIT_WORK(&dpc->work, acpi_os_execute_deferred); | |
844 | else if (queue == kacpi_notify_wq) | |
845 | INIT_WORK(&dpc->work, acpi_os_execute_deferred); | |
846 | else | |
847 | INIT_WORK(&dpc->work, acpi_os_execute_deferred); | |
848 | ||
8fec62b2 TH |
849 | /* |
850 | * On some machines, a software-initiated SMI causes corruption unless | |
851 | * the SMI runs on CPU 0. An SMI can be initiated by any AML, but | |
852 | * typically it's done in GPE-related methods that are run via | |
853 | * workqueues, so we can avoid the known corruption cases by always | |
854 | * queueing on CPU 0. | |
855 | */ | |
856 | ret = queue_work_on(0, queue, &dpc->work); | |
19cd847a ZR |
857 | |
858 | if (!ret) { | |
55ac9a01 LM |
859 | printk(KERN_ERR PREFIX |
860 | "Call to queue_work() failed.\n"); | |
17bc54ee AS |
861 | status = AE_ERROR; |
862 | kfree(dpc); | |
1da177e4 | 863 | } |
889c78be | 864 | return status; |
1da177e4 | 865 | } |
4be44fcd | 866 | |
19cd847a ZR |
867 | acpi_status acpi_os_execute(acpi_execute_type type, |
868 | acpi_osd_exec_callback function, void *context) | |
869 | { | |
870 | return __acpi_os_execute(type, function, context, 0); | |
871 | } | |
b8d35192 | 872 | EXPORT_SYMBOL(acpi_os_execute); |
1da177e4 | 873 | |
19cd847a ZR |
874 | acpi_status acpi_os_hotplug_execute(acpi_osd_exec_callback function, |
875 | void *context) | |
876 | { | |
877 | return __acpi_os_execute(0, function, context, 1); | |
878 | } | |
879 | ||
4be44fcd | 880 | void acpi_os_wait_events_complete(void *context) |
1da177e4 LT |
881 | { |
882 | flush_workqueue(kacpid_wq); | |
2f67a069 | 883 | flush_workqueue(kacpi_notify_wq); |
1da177e4 | 884 | } |
4be44fcd | 885 | |
1da177e4 LT |
886 | EXPORT_SYMBOL(acpi_os_wait_events_complete); |
887 | ||
1da177e4 LT |
888 | /* |
889 | * Deallocate the memory for a spinlock. | |
890 | */ | |
967440e3 | 891 | void acpi_os_delete_lock(acpi_spinlock handle) |
1da177e4 | 892 | { |
d550d98d | 893 | return; |
1da177e4 LT |
894 | } |
895 | ||
1da177e4 | 896 | acpi_status |
4be44fcd | 897 | acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) |
1da177e4 | 898 | { |
4be44fcd | 899 | struct semaphore *sem = NULL; |
1da177e4 | 900 | |
1da177e4 LT |
901 | sem = acpi_os_allocate(sizeof(struct semaphore)); |
902 | if (!sem) | |
d550d98d | 903 | return AE_NO_MEMORY; |
1da177e4 LT |
904 | memset(sem, 0, sizeof(struct semaphore)); |
905 | ||
906 | sema_init(sem, initial_units); | |
907 | ||
4be44fcd | 908 | *handle = (acpi_handle *) sem; |
1da177e4 | 909 | |
4be44fcd LB |
910 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Creating semaphore[%p|%d].\n", |
911 | *handle, initial_units)); | |
1da177e4 | 912 | |
d550d98d | 913 | return AE_OK; |
1da177e4 | 914 | } |
1da177e4 | 915 | |
1da177e4 LT |
916 | /* |
917 | * TODO: A better way to delete semaphores? Linux doesn't have a | |
918 | * 'delete_semaphore()' function -- may result in an invalid | |
919 | * pointer dereference for non-synchronized consumers. Should | |
920 | * we at least check for blocked threads and signal/cancel them? | |
921 | */ | |
922 | ||
4be44fcd | 923 | acpi_status acpi_os_delete_semaphore(acpi_handle handle) |
1da177e4 | 924 | { |
4be44fcd | 925 | struct semaphore *sem = (struct semaphore *)handle; |
1da177e4 | 926 | |
1da177e4 | 927 | if (!sem) |
d550d98d | 928 | return AE_BAD_PARAMETER; |
1da177e4 | 929 | |
4be44fcd | 930 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting semaphore[%p].\n", handle)); |
1da177e4 | 931 | |
f1241c87 | 932 | BUG_ON(!list_empty(&sem->wait_list)); |
02438d87 | 933 | kfree(sem); |
4be44fcd | 934 | sem = NULL; |
1da177e4 | 935 | |
d550d98d | 936 | return AE_OK; |
1da177e4 | 937 | } |
1da177e4 | 938 | |
1da177e4 | 939 | /* |
1da177e4 LT |
940 | * TODO: Support for units > 1? |
941 | */ | |
4be44fcd | 942 | acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) |
1da177e4 | 943 | { |
4be44fcd LB |
944 | acpi_status status = AE_OK; |
945 | struct semaphore *sem = (struct semaphore *)handle; | |
f1241c87 | 946 | long jiffies; |
4be44fcd | 947 | int ret = 0; |
1da177e4 | 948 | |
1da177e4 | 949 | if (!sem || (units < 1)) |
d550d98d | 950 | return AE_BAD_PARAMETER; |
1da177e4 LT |
951 | |
952 | if (units > 1) | |
d550d98d | 953 | return AE_SUPPORT; |
1da177e4 | 954 | |
4be44fcd LB |
955 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n", |
956 | handle, units, timeout)); | |
1da177e4 | 957 | |
f1241c87 MW |
958 | if (timeout == ACPI_WAIT_FOREVER) |
959 | jiffies = MAX_SCHEDULE_TIMEOUT; | |
960 | else | |
961 | jiffies = msecs_to_jiffies(timeout); | |
962 | ||
963 | ret = down_timeout(sem, jiffies); | |
964 | if (ret) | |
965 | status = AE_TIME; | |
1da177e4 LT |
966 | |
967 | if (ACPI_FAILURE(status)) { | |
9e7e2c04 | 968 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, |
a6fc6720 | 969 | "Failed to acquire semaphore[%p|%d|%d], %s", |
4be44fcd LB |
970 | handle, units, timeout, |
971 | acpi_format_exception(status))); | |
972 | } else { | |
973 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, | |
a6fc6720 | 974 | "Acquired semaphore[%p|%d|%d]", handle, |
4be44fcd | 975 | units, timeout)); |
1da177e4 LT |
976 | } |
977 | ||
d550d98d | 978 | return status; |
1da177e4 | 979 | } |
1da177e4 | 980 | |
1da177e4 LT |
981 | /* |
982 | * TODO: Support for units > 1? | |
983 | */ | |
4be44fcd | 984 | acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units) |
1da177e4 | 985 | { |
4be44fcd | 986 | struct semaphore *sem = (struct semaphore *)handle; |
1da177e4 | 987 | |
1da177e4 | 988 | if (!sem || (units < 1)) |
d550d98d | 989 | return AE_BAD_PARAMETER; |
1da177e4 LT |
990 | |
991 | if (units > 1) | |
d550d98d | 992 | return AE_SUPPORT; |
1da177e4 | 993 | |
4be44fcd LB |
994 | ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Signaling semaphore[%p|%d]\n", handle, |
995 | units)); | |
1da177e4 LT |
996 | |
997 | up(sem); | |
998 | ||
d550d98d | 999 | return AE_OK; |
1da177e4 | 1000 | } |
4be44fcd | 1001 | |
1da177e4 | 1002 | #ifdef ACPI_FUTURE_USAGE |
4be44fcd | 1003 | u32 acpi_os_get_line(char *buffer) |
1da177e4 LT |
1004 | { |
1005 | ||
1006 | #ifdef ENABLE_DEBUGGER | |
1007 | if (acpi_in_debugger) { | |
1008 | u32 chars; | |
1009 | ||
1010 | kdb_read(buffer, sizeof(line_buf)); | |
1011 | ||
1012 | /* remove the CR kdb includes */ | |
1013 | chars = strlen(buffer) - 1; | |
1014 | buffer[chars] = '\0'; | |
1015 | } | |
1016 | #endif | |
1017 | ||
1018 | return 0; | |
1019 | } | |
4be44fcd | 1020 | #endif /* ACPI_FUTURE_USAGE */ |
1da177e4 | 1021 | |
4be44fcd | 1022 | acpi_status acpi_os_signal(u32 function, void *info) |
1da177e4 | 1023 | { |
4be44fcd | 1024 | switch (function) { |
1da177e4 LT |
1025 | case ACPI_SIGNAL_FATAL: |
1026 | printk(KERN_ERR PREFIX "Fatal opcode executed\n"); | |
1027 | break; | |
1028 | case ACPI_SIGNAL_BREAKPOINT: | |
1029 | /* | |
1030 | * AML Breakpoint | |
1031 | * ACPI spec. says to treat it as a NOP unless | |
1032 | * you are debugging. So if/when we integrate | |
1033 | * AML debugger into the kernel debugger its | |
1034 | * hook will go here. But until then it is | |
1035 | * not useful to print anything on breakpoints. | |
1036 | */ | |
1037 | break; | |
1038 | default: | |
1039 | break; | |
1040 | } | |
1041 | ||
1042 | return AE_OK; | |
1043 | } | |
4be44fcd | 1044 | |
4be44fcd | 1045 | static int __init acpi_os_name_setup(char *str) |
1da177e4 LT |
1046 | { |
1047 | char *p = acpi_os_name; | |
4be44fcd | 1048 | int count = ACPI_MAX_OVERRIDE_LEN - 1; |
1da177e4 LT |
1049 | |
1050 | if (!str || !*str) | |
1051 | return 0; | |
1052 | ||
1053 | for (; count-- && str && *str; str++) { | |
1054 | if (isalnum(*str) || *str == ' ' || *str == ':') | |
1055 | *p++ = *str; | |
1056 | else if (*str == '\'' || *str == '"') | |
1057 | continue; | |
1058 | else | |
1059 | break; | |
1060 | } | |
1061 | *p = 0; | |
1062 | ||
1063 | return 1; | |
4be44fcd | 1064 | |
1da177e4 LT |
1065 | } |
1066 | ||
1067 | __setup("acpi_os_name=", acpi_os_name_setup); | |
1068 | ||
12d32064 LM |
1069 | #define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ |
1070 | #define OSI_STRING_ENTRIES_MAX 16 /* arbitrary */ | |
1071 | ||
1072 | struct osi_setup_entry { | |
1073 | char string[OSI_STRING_LENGTH_MAX]; | |
1074 | bool enable; | |
1075 | }; | |
1076 | ||
1077 | static struct osi_setup_entry __initdata osi_setup_entries[OSI_STRING_ENTRIES_MAX]; | |
1078 | ||
d90aa92c LM |
1079 | void __init acpi_osi_setup(char *str) |
1080 | { | |
12d32064 LM |
1081 | struct osi_setup_entry *osi; |
1082 | bool enable = true; | |
1083 | int i; | |
1084 | ||
d90aa92c LM |
1085 | if (!acpi_gbl_create_osi_method) |
1086 | return; | |
1087 | ||
1088 | if (str == NULL || *str == '\0') { | |
1089 | printk(KERN_INFO PREFIX "_OSI method disabled\n"); | |
1090 | acpi_gbl_create_osi_method = FALSE; | |
12d32064 LM |
1091 | return; |
1092 | } | |
1093 | ||
1094 | if (*str == '!') { | |
1095 | str++; | |
1096 | enable = false; | |
1097 | } | |
1098 | ||
1099 | for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { | |
1100 | osi = &osi_setup_entries[i]; | |
1101 | if (!strcmp(osi->string, str)) { | |
1102 | osi->enable = enable; | |
1103 | break; | |
1104 | } else if (osi->string[0] == '\0') { | |
1105 | osi->enable = enable; | |
1106 | strncpy(osi->string, str, OSI_STRING_LENGTH_MAX); | |
1107 | break; | |
1108 | } | |
1109 | } | |
d90aa92c LM |
1110 | } |
1111 | ||
d4b7dc49 LB |
1112 | static void __init set_osi_linux(unsigned int enable) |
1113 | { | |
d90aa92c | 1114 | if (osi_linux.enable != enable) |
d4b7dc49 | 1115 | osi_linux.enable = enable; |
b0ed7a91 LM |
1116 | |
1117 | if (osi_linux.enable) | |
1118 | acpi_osi_setup("Linux"); | |
1119 | else | |
1120 | acpi_osi_setup("!Linux"); | |
1121 | ||
d4b7dc49 LB |
1122 | return; |
1123 | } | |
1124 | ||
1125 | static void __init acpi_cmdline_osi_linux(unsigned int enable) | |
1126 | { | |
d90aa92c LM |
1127 | osi_linux.cmdline = 1; /* cmdline set the default and override DMI */ |
1128 | osi_linux.dmi = 0; | |
d4b7dc49 LB |
1129 | set_osi_linux(enable); |
1130 | ||
1131 | return; | |
1132 | } | |
1133 | ||
1134 | void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) | |
1135 | { | |
d4b7dc49 LB |
1136 | printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); |
1137 | ||
1138 | if (enable == -1) | |
1139 | return; | |
1140 | ||
d90aa92c | 1141 | osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */ |
d4b7dc49 | 1142 | set_osi_linux(enable); |
f507654d | 1143 | |
f507654d LB |
1144 | return; |
1145 | } | |
1146 | ||
1da177e4 | 1147 | /* |
ae00d812 LB |
1148 | * Modify the list of "OS Interfaces" reported to BIOS via _OSI |
1149 | * | |
1da177e4 | 1150 | * empty string disables _OSI |
ae00d812 LB |
1151 | * string starting with '!' disables that string |
1152 | * otherwise string is added to list, augmenting built-in strings | |
1da177e4 | 1153 | */ |
b0ed7a91 | 1154 | static void __init acpi_osi_setup_late(void) |
1da177e4 | 1155 | { |
12d32064 LM |
1156 | struct osi_setup_entry *osi; |
1157 | char *str; | |
1158 | int i; | |
d90aa92c | 1159 | acpi_status status; |
b0ed7a91 | 1160 | |
12d32064 LM |
1161 | for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { |
1162 | osi = &osi_setup_entries[i]; | |
1163 | str = osi->string; | |
b0ed7a91 | 1164 | |
12d32064 LM |
1165 | if (*str == '\0') |
1166 | break; | |
1167 | if (osi->enable) { | |
1168 | status = acpi_install_interface(str); | |
d90aa92c | 1169 | |
12d32064 LM |
1170 | if (ACPI_SUCCESS(status)) |
1171 | printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); | |
1172 | } else { | |
1173 | status = acpi_remove_interface(str); | |
d90aa92c | 1174 | |
12d32064 LM |
1175 | if (ACPI_SUCCESS(status)) |
1176 | printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); | |
1177 | } | |
b0ed7a91 LM |
1178 | } |
1179 | } | |
1180 | ||
d90aa92c | 1181 | static int __init osi_setup(char *str) |
b0ed7a91 | 1182 | { |
d90aa92c LM |
1183 | if (str && !strcmp("Linux", str)) |
1184 | acpi_cmdline_osi_linux(1); | |
1185 | else if (str && !strcmp("!Linux", str)) | |
1186 | acpi_cmdline_osi_linux(0); | |
1187 | else | |
1188 | acpi_osi_setup(str); | |
1da177e4 LT |
1189 | |
1190 | return 1; | |
1191 | } | |
1192 | ||
d90aa92c | 1193 | __setup("acpi_osi=", osi_setup); |
1da177e4 LT |
1194 | |
1195 | /* enable serialization to combat AE_ALREADY_EXISTS errors */ | |
4be44fcd | 1196 | static int __init acpi_serialize_setup(char *str) |
1da177e4 LT |
1197 | { |
1198 | printk(KERN_INFO PREFIX "serialize enabled\n"); | |
1199 | ||
1200 | acpi_gbl_all_methods_serialized = TRUE; | |
1201 | ||
1202 | return 1; | |
1203 | } | |
1204 | ||
1205 | __setup("acpi_serialize", acpi_serialize_setup); | |
1206 | ||
df92e695 TR |
1207 | /* Check of resource interference between native drivers and ACPI |
1208 | * OperationRegions (SystemIO and System Memory only). | |
1209 | * IO ports and memory declared in ACPI might be used by the ACPI subsystem | |
1210 | * in arbitrary AML code and can interfere with legacy drivers. | |
1211 | * acpi_enforce_resources= can be set to: | |
1212 | * | |
7e90560c | 1213 | * - strict (default) (2) |
df92e695 | 1214 | * -> further driver trying to access the resources will not load |
7e90560c | 1215 | * - lax (1) |
df92e695 TR |
1216 | * -> further driver trying to access the resources will load, but you |
1217 | * get a system message that something might go wrong... | |
1218 | * | |
1219 | * - no (0) | |
1220 | * -> ACPI Operation Region resources will not be registered | |
1221 | * | |
1222 | */ | |
1223 | #define ENFORCE_RESOURCES_STRICT 2 | |
1224 | #define ENFORCE_RESOURCES_LAX 1 | |
1225 | #define ENFORCE_RESOURCES_NO 0 | |
1226 | ||
7e90560c | 1227 | static unsigned int acpi_enforce_resources = ENFORCE_RESOURCES_STRICT; |
df92e695 TR |
1228 | |
1229 | static int __init acpi_enforce_resources_setup(char *str) | |
1230 | { | |
1231 | if (str == NULL || *str == '\0') | |
1232 | return 0; | |
1233 | ||
1234 | if (!strcmp("strict", str)) | |
1235 | acpi_enforce_resources = ENFORCE_RESOURCES_STRICT; | |
1236 | else if (!strcmp("lax", str)) | |
1237 | acpi_enforce_resources = ENFORCE_RESOURCES_LAX; | |
1238 | else if (!strcmp("no", str)) | |
1239 | acpi_enforce_resources = ENFORCE_RESOURCES_NO; | |
1240 | ||
1241 | return 1; | |
1242 | } | |
1243 | ||
1244 | __setup("acpi_enforce_resources=", acpi_enforce_resources_setup); | |
1245 | ||
1246 | /* Check for resource conflicts between ACPI OperationRegions and native | |
1247 | * drivers */ | |
876fba43 | 1248 | int acpi_check_resource_conflict(const struct resource *res) |
df92e695 TR |
1249 | { |
1250 | struct acpi_res_list *res_list_elem; | |
106d1a0a | 1251 | int ioport = 0, clash = 0; |
df92e695 TR |
1252 | |
1253 | if (acpi_enforce_resources == ENFORCE_RESOURCES_NO) | |
1254 | return 0; | |
1255 | if (!(res->flags & IORESOURCE_IO) && !(res->flags & IORESOURCE_MEM)) | |
1256 | return 0; | |
1257 | ||
1258 | ioport = res->flags & IORESOURCE_IO; | |
1259 | ||
1260 | spin_lock(&acpi_res_lock); | |
1261 | list_for_each_entry(res_list_elem, &resource_list_head, | |
1262 | resource_list) { | |
1263 | if (ioport && (res_list_elem->resource_type | |
1264 | != ACPI_ADR_SPACE_SYSTEM_IO)) | |
1265 | continue; | |
1266 | if (!ioport && (res_list_elem->resource_type | |
1267 | != ACPI_ADR_SPACE_SYSTEM_MEMORY)) | |
1268 | continue; | |
1269 | ||
1270 | if (res->end < res_list_elem->start | |
1271 | || res_list_elem->end < res->start) | |
1272 | continue; | |
1273 | clash = 1; | |
1274 | break; | |
1275 | } | |
1276 | spin_unlock(&acpi_res_lock); | |
1277 | ||
1278 | if (clash) { | |
1279 | if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) { | |
1638bca8 | 1280 | printk(KERN_WARNING "ACPI: resource %s %pR" |
106d1a0a TR |
1281 | " conflicts with ACPI region %s " |
1282 | "[%s 0x%zx-0x%zx]\n", | |
1638bca8 | 1283 | res->name, res, res_list_elem->name, |
106d1a0a TR |
1284 | (res_list_elem->resource_type == |
1285 | ACPI_ADR_SPACE_SYSTEM_IO) ? "io" : "mem", | |
1286 | (size_t) res_list_elem->start, | |
1287 | (size_t) res_list_elem->end); | |
14f03343 JD |
1288 | if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX) |
1289 | printk(KERN_NOTICE "ACPI: This conflict may" | |
1290 | " cause random problems and system" | |
1291 | " instability\n"); | |
1292 | printk(KERN_INFO "ACPI: If an ACPI driver is available" | |
1293 | " for this device, you should use it instead of" | |
1294 | " the native driver\n"); | |
df92e695 TR |
1295 | } |
1296 | if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT) | |
1297 | return -EBUSY; | |
1298 | } | |
1299 | return 0; | |
1300 | } | |
443dea72 | 1301 | EXPORT_SYMBOL(acpi_check_resource_conflict); |
df92e695 TR |
1302 | |
1303 | int acpi_check_region(resource_size_t start, resource_size_t n, | |
1304 | const char *name) | |
1305 | { | |
1306 | struct resource res = { | |
1307 | .start = start, | |
1308 | .end = start + n - 1, | |
1309 | .name = name, | |
1310 | .flags = IORESOURCE_IO, | |
1311 | }; | |
1312 | ||
1313 | return acpi_check_resource_conflict(&res); | |
1314 | } | |
1315 | EXPORT_SYMBOL(acpi_check_region); | |
1316 | ||
70dd6bea JD |
1317 | /* |
1318 | * Let drivers know whether the resource checks are effective | |
1319 | */ | |
1320 | int acpi_resources_are_enforced(void) | |
1321 | { | |
1322 | return acpi_enforce_resources == ENFORCE_RESOURCES_STRICT; | |
1323 | } | |
1324 | EXPORT_SYMBOL(acpi_resources_are_enforced); | |
1325 | ||
73459f73 RM |
1326 | /* |
1327 | * Acquire a spinlock. | |
1328 | * | |
1329 | * handle is a pointer to the spinlock_t. | |
73459f73 RM |
1330 | */ |
1331 | ||
967440e3 | 1332 | acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp) |
73459f73 | 1333 | { |
b8e4d893 | 1334 | acpi_cpu_flags flags; |
967440e3 | 1335 | spin_lock_irqsave(lockp, flags); |
73459f73 RM |
1336 | return flags; |
1337 | } | |
1338 | ||
1339 | /* | |
1340 | * Release a spinlock. See above. | |
1341 | */ | |
1342 | ||
967440e3 | 1343 | void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags flags) |
73459f73 | 1344 | { |
967440e3 | 1345 | spin_unlock_irqrestore(lockp, flags); |
73459f73 RM |
1346 | } |
1347 | ||
73459f73 RM |
1348 | #ifndef ACPI_USE_LOCAL_CACHE |
1349 | ||
1350 | /******************************************************************************* | |
1351 | * | |
1352 | * FUNCTION: acpi_os_create_cache | |
1353 | * | |
b229cf92 BM |
1354 | * PARAMETERS: name - Ascii name for the cache |
1355 | * size - Size of each cached object | |
1356 | * depth - Maximum depth of the cache (in objects) <ignored> | |
1357 | * cache - Where the new cache object is returned | |
73459f73 | 1358 | * |
b229cf92 | 1359 | * RETURN: status |
73459f73 RM |
1360 | * |
1361 | * DESCRIPTION: Create a cache object | |
1362 | * | |
1363 | ******************************************************************************/ | |
1364 | ||
1365 | acpi_status | |
4be44fcd | 1366 | acpi_os_create_cache(char *name, u16 size, u16 depth, acpi_cache_t ** cache) |
73459f73 | 1367 | { |
20c2df83 | 1368 | *cache = kmem_cache_create(name, size, 0, 0, NULL); |
a6fdbf90 | 1369 | if (*cache == NULL) |
b229cf92 BM |
1370 | return AE_ERROR; |
1371 | else | |
1372 | return AE_OK; | |
73459f73 RM |
1373 | } |
1374 | ||
1375 | /******************************************************************************* | |
1376 | * | |
1377 | * FUNCTION: acpi_os_purge_cache | |
1378 | * | |
1379 | * PARAMETERS: Cache - Handle to cache object | |
1380 | * | |
1381 | * RETURN: Status | |
1382 | * | |
1383 | * DESCRIPTION: Free all objects within the requested cache. | |
1384 | * | |
1385 | ******************************************************************************/ | |
1386 | ||
4be44fcd | 1387 | acpi_status acpi_os_purge_cache(acpi_cache_t * cache) |
73459f73 | 1388 | { |
50dd0969 | 1389 | kmem_cache_shrink(cache); |
4be44fcd | 1390 | return (AE_OK); |
73459f73 RM |
1391 | } |
1392 | ||
1393 | /******************************************************************************* | |
1394 | * | |
1395 | * FUNCTION: acpi_os_delete_cache | |
1396 | * | |
1397 | * PARAMETERS: Cache - Handle to cache object | |
1398 | * | |
1399 | * RETURN: Status | |
1400 | * | |
1401 | * DESCRIPTION: Free all objects within the requested cache and delete the | |
1402 | * cache object. | |
1403 | * | |
1404 | ******************************************************************************/ | |
1405 | ||
4be44fcd | 1406 | acpi_status acpi_os_delete_cache(acpi_cache_t * cache) |
73459f73 | 1407 | { |
1a1d92c1 | 1408 | kmem_cache_destroy(cache); |
4be44fcd | 1409 | return (AE_OK); |
73459f73 RM |
1410 | } |
1411 | ||
1412 | /******************************************************************************* | |
1413 | * | |
1414 | * FUNCTION: acpi_os_release_object | |
1415 | * | |
1416 | * PARAMETERS: Cache - Handle to cache object | |
1417 | * Object - The object to be released | |
1418 | * | |
1419 | * RETURN: None | |
1420 | * | |
1421 | * DESCRIPTION: Release an object to the specified cache. If cache is full, | |
1422 | * the object is deleted. | |
1423 | * | |
1424 | ******************************************************************************/ | |
1425 | ||
4be44fcd | 1426 | acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) |
73459f73 | 1427 | { |
4be44fcd LB |
1428 | kmem_cache_free(cache, object); |
1429 | return (AE_OK); | |
73459f73 RM |
1430 | } |
1431 | ||
a5fe1a03 LM |
1432 | static inline int acpi_res_list_add(struct acpi_res_list *res) |
1433 | { | |
1434 | struct acpi_res_list *res_list_elem; | |
1435 | ||
1436 | list_for_each_entry(res_list_elem, &resource_list_head, | |
1437 | resource_list) { | |
1438 | ||
1439 | if (res->resource_type == res_list_elem->resource_type && | |
1440 | res->start == res_list_elem->start && | |
1441 | res->end == res_list_elem->end) { | |
1442 | ||
1443 | /* | |
1444 | * The Region(addr,len) already exist in the list, | |
1445 | * just increase the count | |
1446 | */ | |
1447 | ||
1448 | res_list_elem->count++; | |
1449 | return 0; | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | res->count = 1; | |
1454 | list_add(&res->resource_list, &resource_list_head); | |
1455 | return 1; | |
1456 | } | |
1457 | ||
1458 | static inline void acpi_res_list_del(struct acpi_res_list *res) | |
1459 | { | |
1460 | struct acpi_res_list *res_list_elem; | |
1461 | ||
1462 | list_for_each_entry(res_list_elem, &resource_list_head, | |
1463 | resource_list) { | |
1464 | ||
1465 | if (res->resource_type == res_list_elem->resource_type && | |
1466 | res->start == res_list_elem->start && | |
1467 | res->end == res_list_elem->end) { | |
1468 | ||
1469 | /* | |
1470 | * If the res count is decreased to 0, | |
1471 | * remove and free it | |
1472 | */ | |
1473 | ||
1474 | if (--res_list_elem->count == 0) { | |
1475 | list_del(&res_list_elem->resource_list); | |
1476 | kfree(res_list_elem); | |
1477 | } | |
1478 | return; | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | acpi_status | |
1484 | acpi_os_invalidate_address( | |
1485 | u8 space_id, | |
1486 | acpi_physical_address address, | |
1487 | acpi_size length) | |
1488 | { | |
1489 | struct acpi_res_list res; | |
1490 | ||
1491 | switch (space_id) { | |
1492 | case ACPI_ADR_SPACE_SYSTEM_IO: | |
1493 | case ACPI_ADR_SPACE_SYSTEM_MEMORY: | |
88393161 | 1494 | /* Only interference checks against SystemIO and SystemMemory |
a5fe1a03 LM |
1495 | are needed */ |
1496 | res.start = address; | |
1497 | res.end = address + length - 1; | |
1498 | res.resource_type = space_id; | |
1499 | spin_lock(&acpi_res_lock); | |
1500 | acpi_res_list_del(&res); | |
1501 | spin_unlock(&acpi_res_lock); | |
1502 | break; | |
1503 | case ACPI_ADR_SPACE_PCI_CONFIG: | |
1504 | case ACPI_ADR_SPACE_EC: | |
1505 | case ACPI_ADR_SPACE_SMBUS: | |
1506 | case ACPI_ADR_SPACE_CMOS: | |
1507 | case ACPI_ADR_SPACE_PCI_BAR_TARGET: | |
1508 | case ACPI_ADR_SPACE_DATA_TABLE: | |
1509 | case ACPI_ADR_SPACE_FIXED_HARDWARE: | |
1510 | break; | |
1511 | } | |
1512 | return AE_OK; | |
1513 | } | |
1514 | ||
b229cf92 BM |
1515 | /****************************************************************************** |
1516 | * | |
1517 | * FUNCTION: acpi_os_validate_address | |
1518 | * | |
1519 | * PARAMETERS: space_id - ACPI space ID | |
1520 | * address - Physical address | |
1521 | * length - Address length | |
1522 | * | |
1523 | * RETURN: AE_OK if address/length is valid for the space_id. Otherwise, | |
1524 | * should return AE_AML_ILLEGAL_ADDRESS. | |
1525 | * | |
1526 | * DESCRIPTION: Validate a system address via the host OS. Used to validate | |
1527 | * the addresses accessed by AML operation regions. | |
1528 | * | |
1529 | *****************************************************************************/ | |
1530 | ||
1531 | acpi_status | |
1532 | acpi_os_validate_address ( | |
1533 | u8 space_id, | |
1534 | acpi_physical_address address, | |
df92e695 TR |
1535 | acpi_size length, |
1536 | char *name) | |
b229cf92 | 1537 | { |
df92e695 | 1538 | struct acpi_res_list *res; |
a5fe1a03 | 1539 | int added; |
df92e695 TR |
1540 | if (acpi_enforce_resources == ENFORCE_RESOURCES_NO) |
1541 | return AE_OK; | |
b229cf92 | 1542 | |
df92e695 TR |
1543 | switch (space_id) { |
1544 | case ACPI_ADR_SPACE_SYSTEM_IO: | |
1545 | case ACPI_ADR_SPACE_SYSTEM_MEMORY: | |
88393161 | 1546 | /* Only interference checks against SystemIO and SystemMemory |
df92e695 TR |
1547 | are needed */ |
1548 | res = kzalloc(sizeof(struct acpi_res_list), GFP_KERNEL); | |
1549 | if (!res) | |
1550 | return AE_OK; | |
1551 | /* ACPI names are fixed to 4 bytes, still better use strlcpy */ | |
1552 | strlcpy(res->name, name, 5); | |
1553 | res->start = address; | |
1554 | res->end = address + length - 1; | |
1555 | res->resource_type = space_id; | |
1556 | spin_lock(&acpi_res_lock); | |
a5fe1a03 | 1557 | added = acpi_res_list_add(res); |
df92e695 | 1558 | spin_unlock(&acpi_res_lock); |
a5fe1a03 LM |
1559 | pr_debug("%s %s resource: start: 0x%llx, end: 0x%llx, " |
1560 | "name: %s\n", added ? "Added" : "Already exist", | |
1561 | (space_id == ACPI_ADR_SPACE_SYSTEM_IO) | |
df92e695 TR |
1562 | ? "SystemIO" : "System Memory", |
1563 | (unsigned long long)res->start, | |
1564 | (unsigned long long)res->end, | |
1565 | res->name); | |
a5fe1a03 LM |
1566 | if (!added) |
1567 | kfree(res); | |
df92e695 TR |
1568 | break; |
1569 | case ACPI_ADR_SPACE_PCI_CONFIG: | |
1570 | case ACPI_ADR_SPACE_EC: | |
1571 | case ACPI_ADR_SPACE_SMBUS: | |
1572 | case ACPI_ADR_SPACE_CMOS: | |
1573 | case ACPI_ADR_SPACE_PCI_BAR_TARGET: | |
1574 | case ACPI_ADR_SPACE_DATA_TABLE: | |
1575 | case ACPI_ADR_SPACE_FIXED_HARDWARE: | |
1576 | break; | |
1577 | } | |
1578 | return AE_OK; | |
b229cf92 | 1579 | } |
73459f73 | 1580 | #endif |
d362edaf MS |
1581 | |
1582 | acpi_status __init acpi_os_initialize(void) | |
1583 | { | |
1584 | acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1a_event_block); | |
1585 | acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1b_event_block); | |
1586 | acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe0_block); | |
1587 | acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe1_block); | |
1588 | ||
1589 | return AE_OK; | |
1590 | } | |
1591 | ||
32d47eef | 1592 | acpi_status __init acpi_os_initialize1(void) |
d362edaf MS |
1593 | { |
1594 | kacpid_wq = create_workqueue("kacpid"); | |
1595 | kacpi_notify_wq = create_workqueue("kacpi_notify"); | |
1596 | kacpi_hotplug_wq = create_workqueue("kacpi_hotplug"); | |
1597 | BUG_ON(!kacpid_wq); | |
1598 | BUG_ON(!kacpi_notify_wq); | |
1599 | BUG_ON(!kacpi_hotplug_wq); | |
1bd64d42 LB |
1600 | acpi_install_interface_handler(acpi_osi_handler); |
1601 | acpi_osi_setup_late(); | |
d362edaf MS |
1602 | return AE_OK; |
1603 | } | |
1604 | ||
1605 | acpi_status acpi_os_terminate(void) | |
1606 | { | |
1607 | if (acpi_irq_handler) { | |
1608 | acpi_os_remove_interrupt_handler(acpi_irq_irq, | |
1609 | acpi_irq_handler); | |
1610 | } | |
1611 | ||
1612 | acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe1_block); | |
1613 | acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe0_block); | |
1614 | acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1b_event_block); | |
1615 | acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1a_event_block); | |
1616 | ||
1617 | destroy_workqueue(kacpid_wq); | |
1618 | destroy_workqueue(kacpi_notify_wq); | |
1619 | destroy_workqueue(kacpi_hotplug_wq); | |
1620 | ||
1621 | return AE_OK; | |
1622 | } |