/* * 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 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*/