545 lines
12 KiB
C
545 lines
12 KiB
C
/*
|
|
* acpi.h - ACPI Interface
|
|
*
|
|
* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
|
|
#ifndef _LINUX_ACPI_H
|
|
#define _LINUX_ACPI_H
|
|
|
|
|
|
#ifdef CONFIG_ACPI
|
|
|
|
#ifndef _LINUX
|
|
#define _LINUX
|
|
#endif
|
|
|
|
#include <linux/list.h>
|
|
|
|
#include <acpi/acpi.h>
|
|
#include <acpi/acpi_bus.h>
|
|
#include <acpi/acpi_drivers.h>
|
|
#include <asm/acpi.h>
|
|
|
|
|
|
#ifdef CONFIG_ACPI
|
|
|
|
enum acpi_irq_model_id {
|
|
ACPI_IRQ_MODEL_PIC = 0,
|
|
ACPI_IRQ_MODEL_IOAPIC,
|
|
ACPI_IRQ_MODEL_IOSAPIC,
|
|
ACPI_IRQ_MODEL_COUNT
|
|
};
|
|
|
|
extern enum acpi_irq_model_id acpi_irq_model;
|
|
|
|
|
|
/* Root System Description Pointer (RSDP) */
|
|
|
|
struct acpi_table_rsdp {
|
|
char signature[8];
|
|
u8 checksum;
|
|
char oem_id[6];
|
|
u8 revision;
|
|
u32 rsdt_address;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi20_table_rsdp {
|
|
char signature[8];
|
|
u8 checksum;
|
|
char oem_id[6];
|
|
u8 revision;
|
|
u32 rsdt_address;
|
|
u32 length;
|
|
u64 xsdt_address;
|
|
u8 ext_checksum;
|
|
u8 reserved[3];
|
|
} __attribute__ ((packed));
|
|
|
|
typedef struct {
|
|
u8 type;
|
|
u8 length;
|
|
} __attribute__ ((packed)) acpi_table_entry_header;
|
|
|
|
/* Root System Description Table (RSDT) */
|
|
|
|
struct acpi_table_rsdt {
|
|
struct acpi_table_header header;
|
|
u32 entry[8];
|
|
} __attribute__ ((packed));
|
|
|
|
/* Extended System Description Table (XSDT) */
|
|
|
|
struct acpi_table_xsdt {
|
|
struct acpi_table_header header;
|
|
u64 entry[1];
|
|
} __attribute__ ((packed));
|
|
|
|
/* Fixed ACPI Description Table (FADT) */
|
|
|
|
struct acpi_table_fadt {
|
|
struct acpi_table_header header;
|
|
u32 facs_addr;
|
|
u32 dsdt_addr;
|
|
/* ... */
|
|
} __attribute__ ((packed));
|
|
|
|
/* Multiple APIC Description Table (MADT) */
|
|
|
|
struct acpi_table_madt {
|
|
struct acpi_table_header header;
|
|
u32 lapic_address;
|
|
struct {
|
|
u32 pcat_compat:1;
|
|
u32 reserved:31;
|
|
} flags;
|
|
} __attribute__ ((packed));
|
|
|
|
enum acpi_madt_entry_id {
|
|
ACPI_MADT_LAPIC = 0,
|
|
ACPI_MADT_IOAPIC,
|
|
ACPI_MADT_INT_SRC_OVR,
|
|
ACPI_MADT_NMI_SRC,
|
|
ACPI_MADT_LAPIC_NMI,
|
|
ACPI_MADT_LAPIC_ADDR_OVR,
|
|
ACPI_MADT_IOSAPIC,
|
|
ACPI_MADT_LSAPIC,
|
|
ACPI_MADT_PLAT_INT_SRC,
|
|
ACPI_MADT_ENTRY_COUNT
|
|
};
|
|
|
|
typedef struct {
|
|
u16 polarity:2;
|
|
u16 trigger:2;
|
|
u16 reserved:12;
|
|
} __attribute__ ((packed)) acpi_interrupt_flags;
|
|
|
|
struct acpi_table_lapic {
|
|
acpi_table_entry_header header;
|
|
u8 acpi_id;
|
|
u8 id;
|
|
struct {
|
|
u32 enabled:1;
|
|
u32 reserved:31;
|
|
} flags;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_ioapic {
|
|
acpi_table_entry_header header;
|
|
u8 id;
|
|
u8 reserved;
|
|
u32 address;
|
|
u32 global_irq_base;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_int_src_ovr {
|
|
acpi_table_entry_header header;
|
|
u8 bus;
|
|
u8 bus_irq;
|
|
u32 global_irq;
|
|
acpi_interrupt_flags flags;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_nmi_src {
|
|
acpi_table_entry_header header;
|
|
acpi_interrupt_flags flags;
|
|
u32 global_irq;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_lapic_nmi {
|
|
acpi_table_entry_header header;
|
|
u8 acpi_id;
|
|
acpi_interrupt_flags flags;
|
|
u8 lint;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_lapic_addr_ovr {
|
|
acpi_table_entry_header header;
|
|
u8 reserved[2];
|
|
u64 address;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_iosapic {
|
|
acpi_table_entry_header header;
|
|
u8 id;
|
|
u8 reserved;
|
|
u32 global_irq_base;
|
|
u64 address;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_lsapic {
|
|
acpi_table_entry_header header;
|
|
u8 acpi_id;
|
|
u8 id;
|
|
u8 eid;
|
|
u8 reserved[3];
|
|
struct {
|
|
u32 enabled:1;
|
|
u32 reserved:31;
|
|
} flags;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_plat_int_src {
|
|
acpi_table_entry_header header;
|
|
acpi_interrupt_flags flags;
|
|
u8 type; /* See acpi_interrupt_type */
|
|
u8 id;
|
|
u8 eid;
|
|
u8 iosapic_vector;
|
|
u32 global_irq;
|
|
struct {
|
|
u32 cpei_override_flag:1;
|
|
u32 reserved:31;
|
|
} plint_flags;
|
|
} __attribute__ ((packed));
|
|
|
|
enum acpi_interrupt_id {
|
|
ACPI_INTERRUPT_PMI = 1,
|
|
ACPI_INTERRUPT_INIT,
|
|
ACPI_INTERRUPT_CPEI,
|
|
ACPI_INTERRUPT_COUNT
|
|
};
|
|
|
|
#define ACPI_SPACE_MEM 0
|
|
|
|
struct acpi_gen_regaddr {
|
|
u8 space_id;
|
|
u8 bit_width;
|
|
u8 bit_offset;
|
|
u8 resv;
|
|
u32 addrl;
|
|
u32 addrh;
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_hpet {
|
|
struct acpi_table_header header;
|
|
u32 id;
|
|
struct acpi_gen_regaddr addr;
|
|
u8 number;
|
|
u16 min_tick;
|
|
u8 page_protect;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* Simple Boot Flags
|
|
* http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx
|
|
*/
|
|
struct acpi_table_sbf
|
|
{
|
|
u8 sbf_signature[4];
|
|
u32 sbf_len;
|
|
u8 sbf_revision;
|
|
u8 sbf_csum;
|
|
u8 sbf_oemid[6];
|
|
u8 sbf_oemtable[8];
|
|
u8 sbf_revdata[4];
|
|
u8 sbf_creator[4];
|
|
u8 sbf_crearev[4];
|
|
u8 sbf_cmos;
|
|
u8 sbf_spare[3];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* System Resource Affinity Table (SRAT)
|
|
* http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx
|
|
*/
|
|
|
|
struct acpi_table_srat {
|
|
struct acpi_table_header header;
|
|
u32 table_revision;
|
|
u64 reserved;
|
|
} __attribute__ ((packed));
|
|
|
|
enum acpi_srat_entry_id {
|
|
ACPI_SRAT_PROCESSOR_AFFINITY = 0,
|
|
ACPI_SRAT_MEMORY_AFFINITY,
|
|
ACPI_SRAT_ENTRY_COUNT
|
|
};
|
|
|
|
struct acpi_table_processor_affinity {
|
|
acpi_table_entry_header header;
|
|
u8 proximity_domain;
|
|
u8 apic_id;
|
|
struct {
|
|
u32 enabled:1;
|
|
u32 reserved:31;
|
|
} flags;
|
|
u8 lsapic_eid;
|
|
u8 reserved[7];
|
|
} __attribute__ ((packed));
|
|
|
|
struct acpi_table_memory_affinity {
|
|
acpi_table_entry_header header;
|
|
u8 proximity_domain;
|
|
u8 reserved1[5];
|
|
u32 base_addr_lo;
|
|
u32 base_addr_hi;
|
|
u32 length_lo;
|
|
u32 length_hi;
|
|
u32 memory_type; /* See acpi_address_range_id */
|
|
struct {
|
|
u32 enabled:1;
|
|
u32 hot_pluggable:1;
|
|
u32 reserved:30;
|
|
} flags;
|
|
u64 reserved2;
|
|
} __attribute__ ((packed));
|
|
|
|
enum acpi_address_range_id {
|
|
ACPI_ADDRESS_RANGE_MEMORY = 1,
|
|
ACPI_ADDRESS_RANGE_RESERVED = 2,
|
|
ACPI_ADDRESS_RANGE_ACPI = 3,
|
|
ACPI_ADDRESS_RANGE_NVS = 4,
|
|
ACPI_ADDRESS_RANGE_COUNT
|
|
};
|
|
|
|
/*
|
|
* System Locality Information Table (SLIT)
|
|
* see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf
|
|
*/
|
|
|
|
struct acpi_table_slit {
|
|
struct acpi_table_header header;
|
|
u64 localities;
|
|
u8 entry[1]; /* real size = localities^2 */
|
|
} __attribute__ ((packed));
|
|
|
|
/* Smart Battery Description Table (SBST) */
|
|
|
|
struct acpi_table_sbst {
|
|
struct acpi_table_header header;
|
|
u32 warning; /* Warn user */
|
|
u32 low; /* Critical sleep */
|
|
u32 critical; /* Critical shutdown */
|
|
} __attribute__ ((packed));
|
|
|
|
/* Embedded Controller Boot Resources Table (ECDT) */
|
|
|
|
struct acpi_table_ecdt {
|
|
struct acpi_table_header header;
|
|
struct acpi_generic_address ec_control;
|
|
struct acpi_generic_address ec_data;
|
|
u32 uid;
|
|
u8 gpe_bit;
|
|
char ec_id[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/* PCI MMCONFIG */
|
|
|
|
/* Defined in PCI Firmware Specification 3.0 */
|
|
struct acpi_table_mcfg_config {
|
|
u32 base_address;
|
|
u32 base_reserved;
|
|
u16 pci_segment_group_number;
|
|
u8 start_bus_number;
|
|
u8 end_bus_number;
|
|
u8 reserved[4];
|
|
} __attribute__ ((packed));
|
|
struct acpi_table_mcfg {
|
|
struct acpi_table_header header;
|
|
u8 reserved[8];
|
|
struct acpi_table_mcfg_config config[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/* Table Handlers */
|
|
|
|
enum acpi_table_id {
|
|
ACPI_TABLE_UNKNOWN = 0,
|
|
ACPI_APIC,
|
|
ACPI_BOOT,
|
|
ACPI_DBGP,
|
|
ACPI_DSDT,
|
|
ACPI_ECDT,
|
|
ACPI_ETDT,
|
|
ACPI_FADT,
|
|
ACPI_FACS,
|
|
ACPI_OEMX,
|
|
ACPI_PSDT,
|
|
ACPI_SBST,
|
|
ACPI_SLIT,
|
|
ACPI_SPCR,
|
|
ACPI_SRAT,
|
|
ACPI_SSDT,
|
|
ACPI_SPMI,
|
|
ACPI_HPET,
|
|
ACPI_MCFG,
|
|
ACPI_TABLE_COUNT
|
|
};
|
|
|
|
typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size);
|
|
|
|
extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT];
|
|
|
|
typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end);
|
|
|
|
char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
|
|
unsigned long acpi_find_rsdp (void);
|
|
int acpi_boot_init (void);
|
|
int acpi_boot_table_init (void);
|
|
int acpi_numa_init (void);
|
|
|
|
int acpi_table_init (void);
|
|
int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler);
|
|
int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
|
|
int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
|
|
int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
|
|
int acpi_parse_mcfg (unsigned long phys_addr, unsigned long size);
|
|
void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr);
|
|
void acpi_table_print_madt_entry (acpi_table_entry_header *madt);
|
|
void acpi_table_print_srat_entry (acpi_table_entry_header *srat);
|
|
|
|
/* the following four functions are architecture-dependent */
|
|
void acpi_numa_slit_init (struct acpi_table_slit *slit);
|
|
void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa);
|
|
void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma);
|
|
void acpi_numa_arch_fixup(void);
|
|
|
|
#ifdef CONFIG_ACPI_HOTPLUG_CPU
|
|
/* Arch dependent functions for cpu hotplug support */
|
|
int acpi_map_lsapic(acpi_handle handle, int *pcpu);
|
|
int acpi_unmap_lsapic(int cpu);
|
|
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
|
|
|
|
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
|
|
int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
|
|
|
|
extern int acpi_mp_config;
|
|
|
|
extern struct acpi_table_mcfg_config *pci_mmcfg_config;
|
|
extern int pci_mmcfg_config_num;
|
|
|
|
extern int sbf_port;
|
|
extern unsigned long acpi_video_flags;
|
|
|
|
#else /* !CONFIG_ACPI */
|
|
|
|
#define acpi_mp_config 0
|
|
|
|
#endif /* !CONFIG_ACPI */
|
|
|
|
int acpi_register_gsi (u32 gsi, int triggering, int polarity);
|
|
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
|
|
|
|
/*
|
|
* This function undoes the effect of one call to acpi_register_gsi().
|
|
* If this matches the last registration, any IRQ resources for gsi
|
|
* are freed.
|
|
*/
|
|
void acpi_unregister_gsi (u32 gsi);
|
|
|
|
#ifdef CONFIG_ACPI
|
|
|
|
struct acpi_prt_entry {
|
|
struct list_head node;
|
|
struct acpi_pci_id id;
|
|
u8 pin;
|
|
struct {
|
|
acpi_handle handle;
|
|
u32 index;
|
|
} link;
|
|
u32 irq;
|
|
};
|
|
|
|
struct acpi_prt_list {
|
|
int count;
|
|
struct list_head entries;
|
|
};
|
|
|
|
struct pci_dev;
|
|
|
|
int acpi_pci_irq_enable (struct pci_dev *dev);
|
|
void acpi_penalize_isa_irq(int irq, int active);
|
|
|
|
void acpi_pci_irq_disable (struct pci_dev *dev);
|
|
|
|
struct acpi_pci_driver {
|
|
struct acpi_pci_driver *next;
|
|
int (*add)(acpi_handle handle);
|
|
void (*remove)(acpi_handle handle);
|
|
};
|
|
|
|
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
|
|
void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
|
|
|
|
#endif /* CONFIG_ACPI */
|
|
|
|
#ifdef CONFIG_ACPI_EC
|
|
|
|
extern int ec_read(u8 addr, u8 *val);
|
|
extern int ec_write(u8 addr, u8 val);
|
|
|
|
#endif /*CONFIG_ACPI_EC*/
|
|
|
|
extern int acpi_blacklisted(void);
|
|
extern void acpi_bios_year(char *s);
|
|
|
|
#define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */
|
|
#ifdef CONFIG_ACPI
|
|
|
|
/*
|
|
* Set highest legal C-state
|
|
* 0: C0 okay, but not C1
|
|
* 1: C1 okay, but not C2
|
|
* 2: C2 okay, but not C3 etc.
|
|
*/
|
|
|
|
extern unsigned int max_cstate;
|
|
|
|
static inline unsigned int acpi_get_cstate_limit(void)
|
|
{
|
|
return max_cstate;
|
|
}
|
|
static inline void acpi_set_cstate_limit(unsigned int new_limit)
|
|
{
|
|
max_cstate = new_limit;
|
|
return;
|
|
}
|
|
#else
|
|
static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
|
|
static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_NUMA
|
|
int acpi_get_pxm(acpi_handle handle);
|
|
#else
|
|
static inline int acpi_get_pxm(acpi_handle handle)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
extern int pnpacpi_disabled;
|
|
|
|
#else /* CONFIG_ACPI */
|
|
|
|
static inline int acpi_boot_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int acpi_boot_table_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_ACPI */
|
|
#endif /*_LINUX_ACPI_H*/
|