include/linux/acpi.h - kernel/msm-5.4 - Gitiles

 /*
  * 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 <acpi/acpi_numa.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_PLATFORM,
 	ACPI_IRQ_MODEL_COUNT
 };

 extern enum acpi_irq_model_id	acpi_irq_model;

 typedef struct {
 	u8			type;
 	u8			length;
 } __attribute__ ((packed)) acpi_table_entry_header;

 /* 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) (struct acpi_table_header *header);

 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 (char *id, acpi_table_handler handler);
 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 (struct acpi_table_header *header);
 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 */
 #ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
 #define NR_NODE_MEMBLKS MAX_NUMNODES
 #define acpi_numa_slit_init(slit) do {} while (0)
 #define acpi_numa_processor_affinity_init(pa) do {} while (0)
 #define acpi_numa_memory_affinity_init(ma) do {} while (0)
 #define acpi_numa_arch_fixup() do {} while (0)
 #else
 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);
 #endif

 #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);
 extern int ec_transaction(u8 command,
                           const u8 *wdata, unsigned wdata_len,
                           u8 *rdata, unsigned rdata_len);

 #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);
 int acpi_get_node(acpi_handle *handle);
 #else
 static inline int acpi_get_pxm(acpi_handle handle)
 {
 	return 0;
 }
 static inline int acpi_get_node(acpi_handle *handle)
 {
 	return 0;
 }
 #endif
 extern int acpi_paddr_to_node(u64 start_addr, u64 size);

 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*/
	/*
	* 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 <acpi/acpi_numa.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_PLATFORM,
	ACPI_IRQ_MODEL_COUNT
	};

	extern enum acpi_irq_model_id acpi_irq_model;

	typedef struct {
	u8 type;
	u8 length;
	} __attribute__ ((packed)) acpi_table_entry_header;

	/* 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) (struct acpi_table_header header);

	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 (char *id, acpi_table_handler handler);
	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 (struct acpi_table_header *header);
	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 */
	#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
	#define NR_NODE_MEMBLKS MAX_NUMNODES
	#define acpi_numa_slit_init(slit) do {} while (0)
	#define acpi_numa_processor_affinity_init(pa) do {} while (0)
	#define acpi_numa_memory_affinity_init(ma) do {} while (0)
	#define acpi_numa_arch_fixup() do {} while (0)
	#else
	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);
	#endif

	#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);
	extern int ec_transaction(u8 command,
	const u8 *wdata, unsigned wdata_len,
	u8 *rdata, unsigned rdata_len);

	#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);
	int acpi_get_node(acpi_handle *handle);
	#else
	static inline int acpi_get_pxm(acpi_handle handle)
	{
	return 0;
	}
	static inline int acpi_get_node(acpi_handle *handle)
	{
	return 0;
	}
	#endif
	extern int acpi_paddr_to_node(u64 start_addr, u64 size);

	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/