/*
* 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
#include <linux/config.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_BOOT
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;
u32 reserved;
} __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 */
struct acpi_table_mcfg {
struct acpi_table_header header;
u8 reserved[8];
u32 base_address;
u32 base_reserved;
} __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);
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 u32 pci_mmcfg_base_addr;
extern int sbf_port ;
#else /*!CONFIG_ACPI_BOOT*/
#define acpi_mp_config 0
static inline int acpi_boot_init(void)
{
return 0;
}
static inline int acpi_boot_table_init(void)
{
return 0;
}
#endif /*!CONFIG_ACPI_BOOT*/
unsigned int acpi_register_gsi (u32 gsi, int edge_level, int active_high_low);
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.
*/
#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
void acpi_unregister_gsi (u32 gsi);
#endif
#ifdef CONFIG_ACPI_PCI
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);
#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
void acpi_pci_irq_disable (struct pci_dev *dev);
#endif
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_PCI*/
#ifdef CONFIG_ACPI_EC
extern int ec_read(u8 addr, u8 *val);
extern int ec_write(u8 addr, u8 val);
#endif /*CONFIG_ACPI_EC*/
#ifdef CONFIG_ACPI_INTERPRETER
extern int acpi_blacklisted(void);
extern void acpi_bios_year(char *s);
#else /*!CONFIG_ACPI_INTERPRETER*/
static inline int acpi_blacklisted(void)
{
return 0;
}
#endif /*!CONFIG_ACPI_INTERPRETER*/
#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;
#endif /* CONFIG_ACPI */
#endif /*_LINUX_ACPI_H*/
