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