2 * acpi.h - ACPI Interface
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
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
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
34 #include <linux/list.h>
36 #include <acpi/acpi.h>
37 #include <acpi/acpi_bus.h>
38 #include <acpi/acpi_drivers.h>
42 #ifdef CONFIG_ACPI_BOOT
44 enum acpi_irq_model_id {
45 ACPI_IRQ_MODEL_PIC = 0,
46 ACPI_IRQ_MODEL_IOAPIC,
47 ACPI_IRQ_MODEL_IOSAPIC,
51 extern enum acpi_irq_model_id acpi_irq_model;
54 /* Root System Description Pointer (RSDP) */
56 struct acpi_table_rsdp {
62 } __attribute__ ((packed));
64 struct acpi20_table_rsdp {
74 } __attribute__ ((packed));
79 } __attribute__ ((packed)) acpi_table_entry_header;
81 /* Root System Description Table (RSDT) */
83 struct acpi_table_rsdt {
84 struct acpi_table_header header;
86 } __attribute__ ((packed));
88 /* Extended System Description Table (XSDT) */
90 struct acpi_table_xsdt {
91 struct acpi_table_header header;
93 } __attribute__ ((packed));
95 /* Fixed ACPI Description Table (FADT) */
97 struct acpi_table_fadt {
98 struct acpi_table_header header;
102 } __attribute__ ((packed));
104 /* Multiple APIC Description Table (MADT) */
106 struct acpi_table_madt {
107 struct acpi_table_header header;
113 } __attribute__ ((packed));
115 enum acpi_madt_entry_id {
118 ACPI_MADT_INT_SRC_OVR,
121 ACPI_MADT_LAPIC_ADDR_OVR,
124 ACPI_MADT_PLAT_INT_SRC,
125 ACPI_MADT_ENTRY_COUNT
132 } __attribute__ ((packed)) acpi_interrupt_flags;
134 struct acpi_table_lapic {
135 acpi_table_entry_header header;
142 } __attribute__ ((packed));
144 struct acpi_table_ioapic {
145 acpi_table_entry_header header;
150 } __attribute__ ((packed));
152 struct acpi_table_int_src_ovr {
153 acpi_table_entry_header header;
157 acpi_interrupt_flags flags;
158 } __attribute__ ((packed));
160 struct acpi_table_nmi_src {
161 acpi_table_entry_header header;
162 acpi_interrupt_flags flags;
164 } __attribute__ ((packed));
166 struct acpi_table_lapic_nmi {
167 acpi_table_entry_header header;
169 acpi_interrupt_flags flags;
171 } __attribute__ ((packed));
173 struct acpi_table_lapic_addr_ovr {
174 acpi_table_entry_header header;
177 } __attribute__ ((packed));
179 struct acpi_table_iosapic {
180 acpi_table_entry_header header;
185 } __attribute__ ((packed));
187 struct acpi_table_lsapic {
188 acpi_table_entry_header header;
197 } __attribute__ ((packed));
199 struct acpi_table_plat_int_src {
200 acpi_table_entry_header header;
201 acpi_interrupt_flags flags;
202 u8 type; /* See acpi_interrupt_type */
208 } __attribute__ ((packed));
210 enum acpi_interrupt_id {
211 ACPI_INTERRUPT_PMI = 1,
217 #define ACPI_SPACE_MEM 0
219 struct acpi_gen_regaddr {
226 } __attribute__ ((packed));
228 struct acpi_table_hpet {
229 struct acpi_table_header header;
231 struct acpi_gen_regaddr addr;
235 } __attribute__ ((packed));
239 * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx
241 struct acpi_table_sbf
254 } __attribute__ ((packed));
257 * System Resource Affinity Table (SRAT)
258 * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx
261 struct acpi_table_srat {
262 struct acpi_table_header header;
265 } __attribute__ ((packed));
267 enum acpi_srat_entry_id {
268 ACPI_SRAT_PROCESSOR_AFFINITY = 0,
269 ACPI_SRAT_MEMORY_AFFINITY,
270 ACPI_SRAT_ENTRY_COUNT
273 struct acpi_table_processor_affinity {
274 acpi_table_entry_header header;
283 } __attribute__ ((packed));
285 struct acpi_table_memory_affinity {
286 acpi_table_entry_header header;
293 u32 memory_type; /* See acpi_address_range_id */
300 } __attribute__ ((packed));
302 enum acpi_address_range_id {
303 ACPI_ADDRESS_RANGE_MEMORY = 1,
304 ACPI_ADDRESS_RANGE_RESERVED = 2,
305 ACPI_ADDRESS_RANGE_ACPI = 3,
306 ACPI_ADDRESS_RANGE_NVS = 4,
307 ACPI_ADDRESS_RANGE_COUNT
311 * System Locality Information Table (SLIT)
312 * see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf
315 struct acpi_table_slit {
316 struct acpi_table_header header;
318 u8 entry[1]; /* real size = localities^2 */
319 } __attribute__ ((packed));
321 /* Smart Battery Description Table (SBST) */
323 struct acpi_table_sbst {
324 struct acpi_table_header header;
325 u32 warning; /* Warn user */
326 u32 low; /* Critical sleep */
327 u32 critical; /* Critical shutdown */
328 } __attribute__ ((packed));
330 /* Embedded Controller Boot Resources Table (ECDT) */
332 struct acpi_table_ecdt {
333 struct acpi_table_header header;
334 struct acpi_generic_address ec_control;
335 struct acpi_generic_address ec_data;
339 } __attribute__ ((packed));
343 struct acpi_table_mcfg {
344 struct acpi_table_header header;
348 } __attribute__ ((packed));
353 ACPI_TABLE_UNKNOWN = 0,
375 typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size);
377 extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT];
379 typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end);
381 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
382 unsigned long acpi_find_rsdp (void);
383 int acpi_boot_init (void);
384 int acpi_boot_table_init (void);
385 int acpi_numa_init (void);
387 int acpi_table_init (void);
388 int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler);
389 int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
390 int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
391 int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
392 void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr);
393 void acpi_table_print_madt_entry (acpi_table_entry_header *madt);
394 void acpi_table_print_srat_entry (acpi_table_entry_header *srat);
396 /* the following four functions are architecture-dependent */
397 void acpi_numa_slit_init (struct acpi_table_slit *slit);
398 void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa);
399 void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma);
400 void acpi_numa_arch_fixup(void);
402 #ifdef CONFIG_ACPI_HOTPLUG_CPU
403 /* Arch dependent functions for cpu hotplug support */
404 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
405 int acpi_unmap_lsapic(int cpu);
406 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
408 extern int acpi_mp_config;
410 extern u32 pci_mmcfg_base_addr;
412 extern int sbf_port ;
414 #else /*!CONFIG_ACPI_BOOT*/
416 #define acpi_mp_config 0
418 static inline int acpi_boot_init(void)
423 static inline int acpi_boot_table_init(void)
428 #endif /*!CONFIG_ACPI_BOOT*/
430 unsigned int acpi_register_gsi (u32 gsi, int edge_level, int active_high_low);
431 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
434 * This function undoes the effect of one call to acpi_register_gsi().
435 * If this matches the last registration, any IRQ resources for gsi
438 #ifdef CONFIG_ACPI_DEALLOCATE_IRQ
439 void acpi_unregister_gsi (u32 gsi);
442 #ifdef CONFIG_ACPI_PCI
444 struct acpi_prt_entry {
445 struct list_head node;
446 struct acpi_pci_id id;
455 struct acpi_prt_list {
457 struct list_head entries;
462 int acpi_pci_irq_enable (struct pci_dev *dev);
463 void acpi_penalize_isa_irq(int irq);
465 #ifdef CONFIG_ACPI_DEALLOCATE_IRQ
466 void acpi_pci_irq_disable (struct pci_dev *dev);
469 struct acpi_pci_driver {
470 struct acpi_pci_driver *next;
471 int (*add)(acpi_handle handle);
472 void (*remove)(acpi_handle handle);
475 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
476 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
478 #endif /*CONFIG_ACPI_PCI*/
480 #ifdef CONFIG_ACPI_EC
482 extern int ec_read(u8 addr, u8 *val);
483 extern int ec_write(u8 addr, u8 val);
485 #endif /*CONFIG_ACPI_EC*/
487 #ifdef CONFIG_ACPI_INTERPRETER
489 extern int acpi_blacklisted(void);
490 extern void acpi_bios_year(char *s);
492 #else /*!CONFIG_ACPI_INTERPRETER*/
494 static inline int acpi_blacklisted(void)
499 #endif /*!CONFIG_ACPI_INTERPRETER*/
501 #define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */
505 * Set highest legal C-state
506 * 0: C0 okay, but not C1
507 * 1: C1 okay, but not C2
508 * 2: C2 okay, but not C3 etc.
511 extern unsigned int max_cstate;
513 static inline unsigned int acpi_get_cstate_limit(void)
517 static inline void acpi_set_cstate_limit(unsigned int new_limit)
519 max_cstate = new_limit;
523 static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
524 static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
527 #ifdef CONFIG_ACPI_NUMA
528 int acpi_get_pxm(acpi_handle handle);
530 static inline int acpi_get_pxm(acpi_handle handle)
536 extern int pnpacpi_disabled;
538 #endif /* CONFIG_ACPI */
539 #endif /*_LINUX_ACPI_H*/