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