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1da177e4 LT |
1 | /* |
2 | * acpi.h - ACPI Interface | |
3 | * | |
4 | * Copyright (C) 2001 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 | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
23 | */ | |
24 | ||
25 | #ifndef _LINUX_ACPI_H | |
26 | #define _LINUX_ACPI_H | |
27 | ||
3f5948fa | 28 | |
25be5e6c LB |
29 | #ifdef CONFIG_ACPI |
30 | ||
1da177e4 LT |
31 | #ifndef _LINUX |
32 | #define _LINUX | |
33 | #endif | |
34 | ||
35 | #include <linux/list.h> | |
36 | ||
37 | #include <acpi/acpi.h> | |
38 | #include <acpi/acpi_bus.h> | |
39 | #include <acpi/acpi_drivers.h> | |
40 | #include <asm/acpi.h> | |
41 | ||
42 | ||
888ba6c6 | 43 | #ifdef CONFIG_ACPI |
1da177e4 LT |
44 | |
45 | enum acpi_irq_model_id { | |
46 | ACPI_IRQ_MODEL_PIC = 0, | |
47 | ACPI_IRQ_MODEL_IOAPIC, | |
48 | ACPI_IRQ_MODEL_IOSAPIC, | |
49 | ACPI_IRQ_MODEL_COUNT | |
50 | }; | |
51 | ||
52 | extern enum acpi_irq_model_id acpi_irq_model; | |
53 | ||
54 | ||
55 | /* Root System Description Pointer (RSDP) */ | |
56 | ||
57 | struct acpi_table_rsdp { | |
58 | char signature[8]; | |
59 | u8 checksum; | |
60 | char oem_id[6]; | |
61 | u8 revision; | |
62 | u32 rsdt_address; | |
63 | } __attribute__ ((packed)); | |
64 | ||
65 | struct acpi20_table_rsdp { | |
66 | char signature[8]; | |
67 | u8 checksum; | |
68 | char oem_id[6]; | |
69 | u8 revision; | |
70 | u32 rsdt_address; | |
71 | u32 length; | |
72 | u64 xsdt_address; | |
73 | u8 ext_checksum; | |
74 | u8 reserved[3]; | |
75 | } __attribute__ ((packed)); | |
76 | ||
77 | typedef struct { | |
78 | u8 type; | |
79 | u8 length; | |
80 | } __attribute__ ((packed)) acpi_table_entry_header; | |
81 | ||
82 | /* Root System Description Table (RSDT) */ | |
83 | ||
84 | struct acpi_table_rsdt { | |
85 | struct acpi_table_header header; | |
86 | u32 entry[8]; | |
87 | } __attribute__ ((packed)); | |
88 | ||
89 | /* Extended System Description Table (XSDT) */ | |
90 | ||
91 | struct acpi_table_xsdt { | |
92 | struct acpi_table_header header; | |
93 | u64 entry[1]; | |
94 | } __attribute__ ((packed)); | |
95 | ||
96 | /* Fixed ACPI Description Table (FADT) */ | |
97 | ||
98 | struct acpi_table_fadt { | |
99 | struct acpi_table_header header; | |
100 | u32 facs_addr; | |
101 | u32 dsdt_addr; | |
102 | /* ... */ | |
103 | } __attribute__ ((packed)); | |
104 | ||
105 | /* Multiple APIC Description Table (MADT) */ | |
106 | ||
107 | struct acpi_table_madt { | |
108 | struct acpi_table_header header; | |
109 | u32 lapic_address; | |
110 | struct { | |
111 | u32 pcat_compat:1; | |
112 | u32 reserved:31; | |
113 | } flags; | |
114 | } __attribute__ ((packed)); | |
115 | ||
116 | enum acpi_madt_entry_id { | |
117 | ACPI_MADT_LAPIC = 0, | |
118 | ACPI_MADT_IOAPIC, | |
119 | ACPI_MADT_INT_SRC_OVR, | |
120 | ACPI_MADT_NMI_SRC, | |
121 | ACPI_MADT_LAPIC_NMI, | |
122 | ACPI_MADT_LAPIC_ADDR_OVR, | |
123 | ACPI_MADT_IOSAPIC, | |
124 | ACPI_MADT_LSAPIC, | |
125 | ACPI_MADT_PLAT_INT_SRC, | |
126 | ACPI_MADT_ENTRY_COUNT | |
127 | }; | |
128 | ||
129 | typedef struct { | |
130 | u16 polarity:2; | |
131 | u16 trigger:2; | |
132 | u16 reserved:12; | |
133 | } __attribute__ ((packed)) acpi_interrupt_flags; | |
134 | ||
135 | struct acpi_table_lapic { | |
136 | acpi_table_entry_header header; | |
137 | u8 acpi_id; | |
138 | u8 id; | |
139 | struct { | |
140 | u32 enabled:1; | |
141 | u32 reserved:31; | |
142 | } flags; | |
143 | } __attribute__ ((packed)); | |
144 | ||
145 | struct acpi_table_ioapic { | |
146 | acpi_table_entry_header header; | |
147 | u8 id; | |
148 | u8 reserved; | |
149 | u32 address; | |
150 | u32 global_irq_base; | |
151 | } __attribute__ ((packed)); | |
152 | ||
153 | struct acpi_table_int_src_ovr { | |
154 | acpi_table_entry_header header; | |
155 | u8 bus; | |
156 | u8 bus_irq; | |
157 | u32 global_irq; | |
158 | acpi_interrupt_flags flags; | |
159 | } __attribute__ ((packed)); | |
160 | ||
161 | struct acpi_table_nmi_src { | |
162 | acpi_table_entry_header header; | |
163 | acpi_interrupt_flags flags; | |
164 | u32 global_irq; | |
165 | } __attribute__ ((packed)); | |
166 | ||
167 | struct acpi_table_lapic_nmi { | |
168 | acpi_table_entry_header header; | |
169 | u8 acpi_id; | |
170 | acpi_interrupt_flags flags; | |
171 | u8 lint; | |
172 | } __attribute__ ((packed)); | |
173 | ||
174 | struct acpi_table_lapic_addr_ovr { | |
175 | acpi_table_entry_header header; | |
176 | u8 reserved[2]; | |
177 | u64 address; | |
178 | } __attribute__ ((packed)); | |
179 | ||
180 | struct acpi_table_iosapic { | |
181 | acpi_table_entry_header header; | |
182 | u8 id; | |
183 | u8 reserved; | |
184 | u32 global_irq_base; | |
185 | u64 address; | |
186 | } __attribute__ ((packed)); | |
187 | ||
188 | struct acpi_table_lsapic { | |
189 | acpi_table_entry_header header; | |
190 | u8 acpi_id; | |
191 | u8 id; | |
192 | u8 eid; | |
193 | u8 reserved[3]; | |
194 | struct { | |
195 | u32 enabled:1; | |
196 | u32 reserved:31; | |
197 | } flags; | |
198 | } __attribute__ ((packed)); | |
199 | ||
200 | struct acpi_table_plat_int_src { | |
201 | acpi_table_entry_header header; | |
202 | acpi_interrupt_flags flags; | |
203 | u8 type; /* See acpi_interrupt_type */ | |
204 | u8 id; | |
205 | u8 eid; | |
206 | u8 iosapic_vector; | |
207 | u32 global_irq; | |
55e59c51 AR |
208 | struct { |
209 | u32 cpei_override_flag:1; | |
210 | u32 reserved:31; | |
211 | } plint_flags; | |
1da177e4 LT |
212 | } __attribute__ ((packed)); |
213 | ||
214 | enum acpi_interrupt_id { | |
215 | ACPI_INTERRUPT_PMI = 1, | |
216 | ACPI_INTERRUPT_INIT, | |
217 | ACPI_INTERRUPT_CPEI, | |
218 | ACPI_INTERRUPT_COUNT | |
219 | }; | |
220 | ||
221 | #define ACPI_SPACE_MEM 0 | |
222 | ||
223 | struct acpi_gen_regaddr { | |
224 | u8 space_id; | |
225 | u8 bit_width; | |
226 | u8 bit_offset; | |
227 | u8 resv; | |
228 | u32 addrl; | |
229 | u32 addrh; | |
230 | } __attribute__ ((packed)); | |
231 | ||
232 | struct acpi_table_hpet { | |
233 | struct acpi_table_header header; | |
234 | u32 id; | |
235 | struct acpi_gen_regaddr addr; | |
236 | u8 number; | |
237 | u16 min_tick; | |
238 | u8 page_protect; | |
239 | } __attribute__ ((packed)); | |
240 | ||
241 | /* | |
242 | * Simple Boot Flags | |
243 | * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx | |
244 | */ | |
245 | struct acpi_table_sbf | |
246 | { | |
247 | u8 sbf_signature[4]; | |
248 | u32 sbf_len; | |
249 | u8 sbf_revision; | |
250 | u8 sbf_csum; | |
251 | u8 sbf_oemid[6]; | |
252 | u8 sbf_oemtable[8]; | |
253 | u8 sbf_revdata[4]; | |
254 | u8 sbf_creator[4]; | |
255 | u8 sbf_crearev[4]; | |
256 | u8 sbf_cmos; | |
257 | u8 sbf_spare[3]; | |
258 | } __attribute__ ((packed)); | |
259 | ||
260 | /* | |
261 | * System Resource Affinity Table (SRAT) | |
262 | * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx | |
263 | */ | |
264 | ||
265 | struct acpi_table_srat { | |
266 | struct acpi_table_header header; | |
267 | u32 table_revision; | |
268 | u64 reserved; | |
269 | } __attribute__ ((packed)); | |
270 | ||
271 | enum acpi_srat_entry_id { | |
272 | ACPI_SRAT_PROCESSOR_AFFINITY = 0, | |
273 | ACPI_SRAT_MEMORY_AFFINITY, | |
274 | ACPI_SRAT_ENTRY_COUNT | |
275 | }; | |
276 | ||
277 | struct acpi_table_processor_affinity { | |
278 | acpi_table_entry_header header; | |
279 | u8 proximity_domain; | |
280 | u8 apic_id; | |
281 | struct { | |
282 | u32 enabled:1; | |
283 | u32 reserved:31; | |
284 | } flags; | |
285 | u8 lsapic_eid; | |
286 | u8 reserved[7]; | |
287 | } __attribute__ ((packed)); | |
288 | ||
289 | struct acpi_table_memory_affinity { | |
290 | acpi_table_entry_header header; | |
291 | u8 proximity_domain; | |
292 | u8 reserved1[5]; | |
293 | u32 base_addr_lo; | |
294 | u32 base_addr_hi; | |
295 | u32 length_lo; | |
296 | u32 length_hi; | |
297 | u32 memory_type; /* See acpi_address_range_id */ | |
298 | struct { | |
299 | u32 enabled:1; | |
300 | u32 hot_pluggable:1; | |
301 | u32 reserved:30; | |
302 | } flags; | |
303 | u64 reserved2; | |
304 | } __attribute__ ((packed)); | |
305 | ||
306 | enum acpi_address_range_id { | |
307 | ACPI_ADDRESS_RANGE_MEMORY = 1, | |
308 | ACPI_ADDRESS_RANGE_RESERVED = 2, | |
309 | ACPI_ADDRESS_RANGE_ACPI = 3, | |
310 | ACPI_ADDRESS_RANGE_NVS = 4, | |
311 | ACPI_ADDRESS_RANGE_COUNT | |
312 | }; | |
313 | ||
314 | /* | |
315 | * System Locality Information Table (SLIT) | |
316 | * see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf | |
317 | */ | |
318 | ||
319 | struct acpi_table_slit { | |
320 | struct acpi_table_header header; | |
321 | u64 localities; | |
322 | u8 entry[1]; /* real size = localities^2 */ | |
323 | } __attribute__ ((packed)); | |
324 | ||
325 | /* Smart Battery Description Table (SBST) */ | |
326 | ||
327 | struct acpi_table_sbst { | |
328 | struct acpi_table_header header; | |
329 | u32 warning; /* Warn user */ | |
330 | u32 low; /* Critical sleep */ | |
331 | u32 critical; /* Critical shutdown */ | |
332 | } __attribute__ ((packed)); | |
333 | ||
334 | /* Embedded Controller Boot Resources Table (ECDT) */ | |
335 | ||
336 | struct acpi_table_ecdt { | |
337 | struct acpi_table_header header; | |
338 | struct acpi_generic_address ec_control; | |
339 | struct acpi_generic_address ec_data; | |
340 | u32 uid; | |
341 | u8 gpe_bit; | |
342 | char ec_id[0]; | |
343 | } __attribute__ ((packed)); | |
344 | ||
345 | /* PCI MMCONFIG */ | |
346 | ||
54549391 GKH |
347 | /* Defined in PCI Firmware Specification 3.0 */ |
348 | struct acpi_table_mcfg_config { | |
349 | u32 base_address; | |
350 | u32 base_reserved; | |
351 | u16 pci_segment_group_number; | |
352 | u8 start_bus_number; | |
353 | u8 end_bus_number; | |
354 | u8 reserved[4]; | |
355 | } __attribute__ ((packed)); | |
1da177e4 LT |
356 | struct acpi_table_mcfg { |
357 | struct acpi_table_header header; | |
358 | u8 reserved[8]; | |
54549391 | 359 | struct acpi_table_mcfg_config config[0]; |
1da177e4 LT |
360 | } __attribute__ ((packed)); |
361 | ||
362 | /* Table Handlers */ | |
363 | ||
364 | enum acpi_table_id { | |
365 | ACPI_TABLE_UNKNOWN = 0, | |
366 | ACPI_APIC, | |
367 | ACPI_BOOT, | |
368 | ACPI_DBGP, | |
369 | ACPI_DSDT, | |
370 | ACPI_ECDT, | |
371 | ACPI_ETDT, | |
372 | ACPI_FADT, | |
373 | ACPI_FACS, | |
374 | ACPI_OEMX, | |
375 | ACPI_PSDT, | |
376 | ACPI_SBST, | |
377 | ACPI_SLIT, | |
378 | ACPI_SPCR, | |
379 | ACPI_SRAT, | |
380 | ACPI_SSDT, | |
381 | ACPI_SPMI, | |
382 | ACPI_HPET, | |
383 | ACPI_MCFG, | |
384 | ACPI_TABLE_COUNT | |
385 | }; | |
386 | ||
387 | typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size); | |
388 | ||
389 | extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT]; | |
390 | ||
391 | typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end); | |
392 | ||
393 | char * __acpi_map_table (unsigned long phys_addr, unsigned long size); | |
394 | unsigned long acpi_find_rsdp (void); | |
395 | int acpi_boot_init (void); | |
396 | int acpi_boot_table_init (void); | |
397 | int acpi_numa_init (void); | |
398 | ||
399 | int acpi_table_init (void); | |
400 | int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler); | |
401 | int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header); | |
402 | int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); | |
403 | int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); | |
54549391 | 404 | int acpi_parse_mcfg (unsigned long phys_addr, unsigned long size); |
1da177e4 LT |
405 | void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr); |
406 | void acpi_table_print_madt_entry (acpi_table_entry_header *madt); | |
407 | void acpi_table_print_srat_entry (acpi_table_entry_header *srat); | |
408 | ||
409 | /* the following four functions are architecture-dependent */ | |
410 | void acpi_numa_slit_init (struct acpi_table_slit *slit); | |
411 | void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa); | |
412 | void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma); | |
413 | void acpi_numa_arch_fixup(void); | |
414 | ||
415 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
416 | /* Arch dependent functions for cpu hotplug support */ | |
417 | int acpi_map_lsapic(acpi_handle handle, int *pcpu); | |
418 | int acpi_unmap_lsapic(int cpu); | |
419 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ | |
420 | ||
b1bb248a KK |
421 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); |
422 | int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); | |
423 | ||
1da177e4 LT |
424 | extern int acpi_mp_config; |
425 | ||
54549391 GKH |
426 | extern struct acpi_table_mcfg_config *pci_mmcfg_config; |
427 | extern int pci_mmcfg_config_num; | |
1da177e4 | 428 | |
c255d844 PM |
429 | extern int sbf_port; |
430 | extern unsigned long acpi_video_flags; | |
1da177e4 | 431 | |
888ba6c6 | 432 | #else /* !CONFIG_ACPI */ |
1da177e4 LT |
433 | |
434 | #define acpi_mp_config 0 | |
435 | ||
888ba6c6 | 436 | #endif /* !CONFIG_ACPI */ |
1da177e4 | 437 | |
50eca3eb | 438 | int acpi_register_gsi (u32 gsi, int triggering, int polarity); |
1da177e4 LT |
439 | int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); |
440 | ||
441 | /* | |
442 | * This function undoes the effect of one call to acpi_register_gsi(). | |
443 | * If this matches the last registration, any IRQ resources for gsi | |
444 | * are freed. | |
445 | */ | |
1da177e4 | 446 | void acpi_unregister_gsi (u32 gsi); |
1da177e4 | 447 | |
6153df7b | 448 | #ifdef CONFIG_ACPI |
1da177e4 LT |
449 | |
450 | struct acpi_prt_entry { | |
451 | struct list_head node; | |
452 | struct acpi_pci_id id; | |
453 | u8 pin; | |
454 | struct { | |
455 | acpi_handle handle; | |
456 | u32 index; | |
457 | } link; | |
458 | u32 irq; | |
459 | }; | |
460 | ||
461 | struct acpi_prt_list { | |
462 | int count; | |
463 | struct list_head entries; | |
464 | }; | |
465 | ||
466 | struct pci_dev; | |
467 | ||
468 | int acpi_pci_irq_enable (struct pci_dev *dev); | |
c9c3e457 | 469 | void acpi_penalize_isa_irq(int irq, int active); |
1da177e4 | 470 | |
1da177e4 | 471 | void acpi_pci_irq_disable (struct pci_dev *dev); |
1da177e4 LT |
472 | |
473 | struct acpi_pci_driver { | |
474 | struct acpi_pci_driver *next; | |
475 | int (*add)(acpi_handle handle); | |
476 | void (*remove)(acpi_handle handle); | |
477 | }; | |
478 | ||
479 | int acpi_pci_register_driver(struct acpi_pci_driver *driver); | |
480 | void acpi_pci_unregister_driver(struct acpi_pci_driver *driver); | |
481 | ||
6153df7b | 482 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
483 | |
484 | #ifdef CONFIG_ACPI_EC | |
485 | ||
486 | extern int ec_read(u8 addr, u8 *val); | |
487 | extern int ec_write(u8 addr, u8 val); | |
488 | ||
489 | #endif /*CONFIG_ACPI_EC*/ | |
490 | ||
1da177e4 LT |
491 | extern int acpi_blacklisted(void); |
492 | extern void acpi_bios_year(char *s); | |
493 | ||
1da177e4 LT |
494 | #define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */ |
495 | #ifdef CONFIG_ACPI | |
496 | ||
497 | /* | |
498 | * Set highest legal C-state | |
499 | * 0: C0 okay, but not C1 | |
500 | * 1: C1 okay, but not C2 | |
501 | * 2: C2 okay, but not C3 etc. | |
502 | */ | |
503 | ||
504 | extern unsigned int max_cstate; | |
505 | ||
506 | static inline unsigned int acpi_get_cstate_limit(void) | |
507 | { | |
508 | return max_cstate; | |
509 | } | |
510 | static inline void acpi_set_cstate_limit(unsigned int new_limit) | |
511 | { | |
512 | max_cstate = new_limit; | |
513 | return; | |
514 | } | |
515 | #else | |
516 | static inline unsigned int acpi_get_cstate_limit(void) { return 0; } | |
517 | static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; } | |
518 | #endif | |
519 | ||
520 | #ifdef CONFIG_ACPI_NUMA | |
521 | int acpi_get_pxm(acpi_handle handle); | |
522 | #else | |
523 | static inline int acpi_get_pxm(acpi_handle handle) | |
524 | { | |
525 | return 0; | |
526 | } | |
527 | #endif | |
528 | ||
529 | extern int pnpacpi_disabled; | |
530 | ||
53de49f5 AM |
531 | #else /* CONFIG_ACPI */ |
532 | ||
533 | static inline int acpi_boot_init(void) | |
534 | { | |
535 | return 0; | |
536 | } | |
537 | ||
538 | static inline int acpi_boot_table_init(void) | |
539 | { | |
540 | return 0; | |
541 | } | |
542 | ||
25be5e6c LB |
543 | #endif /* CONFIG_ACPI */ |
544 | #endif /*_LINUX_ACPI_H*/ |