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-rw-r--r--include/linux/acpi.h536
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diff --git a/include/linux/acpi.h b/include/linux/acpi.h
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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
28#ifndef _LINUX
29#define _LINUX
30#endif
31
32#include <linux/list.h>
33
34#include <acpi/acpi.h>
35#include <acpi/acpi_bus.h>
36#include <acpi/acpi_drivers.h>
37#include <asm/acpi.h>
38
39
40#ifdef CONFIG_ACPI_BOOT
41
42enum acpi_irq_model_id {
43 ACPI_IRQ_MODEL_PIC = 0,
44 ACPI_IRQ_MODEL_IOAPIC,
45 ACPI_IRQ_MODEL_IOSAPIC,
46 ACPI_IRQ_MODEL_COUNT
47};
48
49extern enum acpi_irq_model_id acpi_irq_model;
50
51
52/* Root System Description Pointer (RSDP) */
53
54struct acpi_table_rsdp {
55 char signature[8];
56 u8 checksum;
57 char oem_id[6];
58 u8 revision;
59 u32 rsdt_address;
60} __attribute__ ((packed));
61
62struct acpi20_table_rsdp {
63 char signature[8];
64 u8 checksum;
65 char oem_id[6];
66 u8 revision;
67 u32 rsdt_address;
68 u32 length;
69 u64 xsdt_address;
70 u8 ext_checksum;
71 u8 reserved[3];
72} __attribute__ ((packed));
73
74typedef struct {
75 u8 type;
76 u8 length;
77} __attribute__ ((packed)) acpi_table_entry_header;
78
79/* Root System Description Table (RSDT) */
80
81struct acpi_table_rsdt {
82 struct acpi_table_header header;
83 u32 entry[8];
84} __attribute__ ((packed));
85
86/* Extended System Description Table (XSDT) */
87
88struct acpi_table_xsdt {
89 struct acpi_table_header header;
90 u64 entry[1];
91} __attribute__ ((packed));
92
93/* Fixed ACPI Description Table (FADT) */
94
95struct acpi_table_fadt {
96 struct acpi_table_header header;
97 u32 facs_addr;
98 u32 dsdt_addr;
99 /* ... */
100} __attribute__ ((packed));
101
102/* Multiple APIC Description Table (MADT) */
103
104struct acpi_table_madt {
105 struct acpi_table_header header;
106 u32 lapic_address;
107 struct {
108 u32 pcat_compat:1;
109 u32 reserved:31;
110 } flags;
111} __attribute__ ((packed));
112
113enum acpi_madt_entry_id {
114 ACPI_MADT_LAPIC = 0,
115 ACPI_MADT_IOAPIC,
116 ACPI_MADT_INT_SRC_OVR,
117 ACPI_MADT_NMI_SRC,
118 ACPI_MADT_LAPIC_NMI,
119 ACPI_MADT_LAPIC_ADDR_OVR,
120 ACPI_MADT_IOSAPIC,
121 ACPI_MADT_LSAPIC,
122 ACPI_MADT_PLAT_INT_SRC,
123 ACPI_MADT_ENTRY_COUNT
124};
125
126typedef struct {
127 u16 polarity:2;
128 u16 trigger:2;
129 u16 reserved:12;
130} __attribute__ ((packed)) acpi_interrupt_flags;
131
132struct acpi_table_lapic {
133 acpi_table_entry_header header;
134 u8 acpi_id;
135 u8 id;
136 struct {
137 u32 enabled:1;
138 u32 reserved:31;
139 } flags;
140} __attribute__ ((packed));
141
142struct acpi_table_ioapic {
143 acpi_table_entry_header header;
144 u8 id;
145 u8 reserved;
146 u32 address;
147 u32 global_irq_base;
148} __attribute__ ((packed));
149
150struct acpi_table_int_src_ovr {
151 acpi_table_entry_header header;
152 u8 bus;
153 u8 bus_irq;
154 u32 global_irq;
155 acpi_interrupt_flags flags;
156} __attribute__ ((packed));
157
158struct acpi_table_nmi_src {
159 acpi_table_entry_header header;
160 acpi_interrupt_flags flags;
161 u32 global_irq;
162} __attribute__ ((packed));
163
164struct acpi_table_lapic_nmi {
165 acpi_table_entry_header header;
166 u8 acpi_id;
167 acpi_interrupt_flags flags;
168 u8 lint;
169} __attribute__ ((packed));
170
171struct acpi_table_lapic_addr_ovr {
172 acpi_table_entry_header header;
173 u8 reserved[2];
174 u64 address;
175} __attribute__ ((packed));
176
177struct acpi_table_iosapic {
178 acpi_table_entry_header header;
179 u8 id;
180 u8 reserved;
181 u32 global_irq_base;
182 u64 address;
183} __attribute__ ((packed));
184
185struct acpi_table_lsapic {
186 acpi_table_entry_header header;
187 u8 acpi_id;
188 u8 id;
189 u8 eid;
190 u8 reserved[3];
191 struct {
192 u32 enabled:1;
193 u32 reserved:31;
194 } flags;
195} __attribute__ ((packed));
196
197struct acpi_table_plat_int_src {
198 acpi_table_entry_header header;
199 acpi_interrupt_flags flags;
200 u8 type; /* See acpi_interrupt_type */
201 u8 id;
202 u8 eid;
203 u8 iosapic_vector;
204 u32 global_irq;
205 u32 reserved;
206} __attribute__ ((packed));
207
208enum acpi_interrupt_id {
209 ACPI_INTERRUPT_PMI = 1,
210 ACPI_INTERRUPT_INIT,
211 ACPI_INTERRUPT_CPEI,
212 ACPI_INTERRUPT_COUNT
213};
214
215#define ACPI_SPACE_MEM 0
216
217struct acpi_gen_regaddr {
218 u8 space_id;
219 u8 bit_width;
220 u8 bit_offset;
221 u8 resv;
222 u32 addrl;
223 u32 addrh;
224} __attribute__ ((packed));
225
226struct acpi_table_hpet {
227 struct acpi_table_header header;
228 u32 id;
229 struct acpi_gen_regaddr addr;
230 u8 number;
231 u16 min_tick;
232 u8 page_protect;
233} __attribute__ ((packed));
234
235/*
236 * Simple Boot Flags
237 * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx
238 */
239struct acpi_table_sbf
240{
241 u8 sbf_signature[4];
242 u32 sbf_len;
243 u8 sbf_revision;
244 u8 sbf_csum;
245 u8 sbf_oemid[6];
246 u8 sbf_oemtable[8];
247 u8 sbf_revdata[4];
248 u8 sbf_creator[4];
249 u8 sbf_crearev[4];
250 u8 sbf_cmos;
251 u8 sbf_spare[3];
252} __attribute__ ((packed));
253
254/*
255 * System Resource Affinity Table (SRAT)
256 * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx
257 */
258
259struct acpi_table_srat {
260 struct acpi_table_header header;
261 u32 table_revision;
262 u64 reserved;
263} __attribute__ ((packed));
264
265enum acpi_srat_entry_id {
266 ACPI_SRAT_PROCESSOR_AFFINITY = 0,
267 ACPI_SRAT_MEMORY_AFFINITY,
268 ACPI_SRAT_ENTRY_COUNT
269};
270
271struct acpi_table_processor_affinity {
272 acpi_table_entry_header header;
273 u8 proximity_domain;
274 u8 apic_id;
275 struct {
276 u32 enabled:1;
277 u32 reserved:31;
278 } flags;
279 u8 lsapic_eid;
280 u8 reserved[7];
281} __attribute__ ((packed));
282
283struct acpi_table_memory_affinity {
284 acpi_table_entry_header header;
285 u8 proximity_domain;
286 u8 reserved1[5];
287 u32 base_addr_lo;
288 u32 base_addr_hi;
289 u32 length_lo;
290 u32 length_hi;
291 u32 memory_type; /* See acpi_address_range_id */
292 struct {
293 u32 enabled:1;
294 u32 hot_pluggable:1;
295 u32 reserved:30;
296 } flags;
297 u64 reserved2;
298} __attribute__ ((packed));
299
300enum acpi_address_range_id {
301 ACPI_ADDRESS_RANGE_MEMORY = 1,
302 ACPI_ADDRESS_RANGE_RESERVED = 2,
303 ACPI_ADDRESS_RANGE_ACPI = 3,
304 ACPI_ADDRESS_RANGE_NVS = 4,
305 ACPI_ADDRESS_RANGE_COUNT
306};
307
308/*
309 * System Locality Information Table (SLIT)
310 * see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf
311 */
312
313struct acpi_table_slit {
314 struct acpi_table_header header;
315 u64 localities;
316 u8 entry[1]; /* real size = localities^2 */
317} __attribute__ ((packed));
318
319/* Smart Battery Description Table (SBST) */
320
321struct acpi_table_sbst {
322 struct acpi_table_header header;
323 u32 warning; /* Warn user */
324 u32 low; /* Critical sleep */
325 u32 critical; /* Critical shutdown */
326} __attribute__ ((packed));
327
328/* Embedded Controller Boot Resources Table (ECDT) */
329
330struct acpi_table_ecdt {
331 struct acpi_table_header header;
332 struct acpi_generic_address ec_control;
333 struct acpi_generic_address ec_data;
334 u32 uid;
335 u8 gpe_bit;
336 char ec_id[0];
337} __attribute__ ((packed));
338
339/* PCI MMCONFIG */
340
341struct acpi_table_mcfg {
342 struct acpi_table_header header;
343 u8 reserved[8];
344 u32 base_address;
345 u32 base_reserved;
346} __attribute__ ((packed));
347
348/* Table Handlers */
349
350enum acpi_table_id {
351 ACPI_TABLE_UNKNOWN = 0,
352 ACPI_APIC,
353 ACPI_BOOT,
354 ACPI_DBGP,
355 ACPI_DSDT,
356 ACPI_ECDT,
357 ACPI_ETDT,
358 ACPI_FADT,
359 ACPI_FACS,
360 ACPI_OEMX,
361 ACPI_PSDT,
362 ACPI_SBST,
363 ACPI_SLIT,
364 ACPI_SPCR,
365 ACPI_SRAT,
366 ACPI_SSDT,
367 ACPI_SPMI,
368 ACPI_HPET,
369 ACPI_MCFG,
370 ACPI_TABLE_COUNT
371};
372
373typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size);
374
375extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT];
376
377typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end);
378
379char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
380unsigned long acpi_find_rsdp (void);
381int acpi_boot_init (void);
382int acpi_boot_table_init (void);
383int acpi_numa_init (void);
384
385int acpi_table_init (void);
386int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler);
387int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
388int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
389int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
390void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr);
391void acpi_table_print_madt_entry (acpi_table_entry_header *madt);
392void acpi_table_print_srat_entry (acpi_table_entry_header *srat);
393
394/* the following four functions are architecture-dependent */
395void acpi_numa_slit_init (struct acpi_table_slit *slit);
396void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa);
397void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma);
398void acpi_numa_arch_fixup(void);
399
400#ifdef CONFIG_ACPI_HOTPLUG_CPU
401/* Arch dependent functions for cpu hotplug support */
402int acpi_map_lsapic(acpi_handle handle, int *pcpu);
403int acpi_unmap_lsapic(int cpu);
404#endif /* CONFIG_ACPI_HOTPLUG_CPU */
405
406extern int acpi_mp_config;
407
408extern u32 pci_mmcfg_base_addr;
409
410extern int sbf_port ;
411
412#else /*!CONFIG_ACPI_BOOT*/
413
414#define acpi_mp_config 0
415
416static inline int acpi_boot_init(void)
417{
418 return 0;
419}
420
421static inline int acpi_boot_table_init(void)
422{
423 return 0;
424}
425
426#endif /*!CONFIG_ACPI_BOOT*/
427
428unsigned int acpi_register_gsi (u32 gsi, int edge_level, int active_high_low);
429int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
430
431/*
432 * This function undoes the effect of one call to acpi_register_gsi().
433 * If this matches the last registration, any IRQ resources for gsi
434 * are freed.
435 */
436#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
437void acpi_unregister_gsi (u32 gsi);
438#endif
439
440#ifdef CONFIG_ACPI_PCI
441
442struct acpi_prt_entry {
443 struct list_head node;
444 struct acpi_pci_id id;
445 u8 pin;
446 struct {
447 acpi_handle handle;
448 u32 index;
449 } link;
450 u32 irq;
451};
452
453struct acpi_prt_list {
454 int count;
455 struct list_head entries;
456};
457
458struct pci_dev;
459
460int acpi_pci_irq_enable (struct pci_dev *dev);
461void acpi_penalize_isa_irq(int irq);
462
463#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
464void acpi_pci_irq_disable (struct pci_dev *dev);
465#endif
466
467struct acpi_pci_driver {
468 struct acpi_pci_driver *next;
469 int (*add)(acpi_handle handle);
470 void (*remove)(acpi_handle handle);
471};
472
473int acpi_pci_register_driver(struct acpi_pci_driver *driver);
474void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
475
476#endif /*CONFIG_ACPI_PCI*/
477
478#ifdef CONFIG_ACPI_EC
479
480extern int ec_read(u8 addr, u8 *val);
481extern int ec_write(u8 addr, u8 val);
482
483#endif /*CONFIG_ACPI_EC*/
484
485#ifdef CONFIG_ACPI_INTERPRETER
486
487extern int acpi_blacklisted(void);
488extern void acpi_bios_year(char *s);
489
490#else /*!CONFIG_ACPI_INTERPRETER*/
491
492static inline int acpi_blacklisted(void)
493{
494 return 0;
495}
496
497#endif /*!CONFIG_ACPI_INTERPRETER*/
498
499#define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */
500#ifdef CONFIG_ACPI
501
502/*
503 * Set highest legal C-state
504 * 0: C0 okay, but not C1
505 * 1: C1 okay, but not C2
506 * 2: C2 okay, but not C3 etc.
507 */
508
509extern unsigned int max_cstate;
510
511static inline unsigned int acpi_get_cstate_limit(void)
512{
513 return max_cstate;
514}
515static inline void acpi_set_cstate_limit(unsigned int new_limit)
516{
517 max_cstate = new_limit;
518 return;
519}
520#else
521static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
522static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
523#endif
524
525#ifdef CONFIG_ACPI_NUMA
526int acpi_get_pxm(acpi_handle handle);
527#else
528static inline int acpi_get_pxm(acpi_handle handle)
529{
530 return 0;
531}
532#endif
533
534extern int pnpacpi_disabled;
535
536#endif /*_LINUX_ACPI_H*/
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