#ifndef _ASM_IA64_EFI_H #define _ASM_IA64_EFI_H /* * Extensible Firmware Interface * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999 * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond * Copyright (C) 1999 Hewlett-Packard Co. * Copyright (C) 1999 David Mosberger-Tang * Copyright (C) 1999 Stephane Eranian */ #include #include #include #include #include #include #include #define EFI_SUCCESS 0 #define EFI_LOAD_ERROR (1L | (1L << 63)) #define EFI_INVALID_PARAMETER (2L | (1L << 63)) #define EFI_UNSUPPORTED (3L | (1L << 63)) #define EFI_BAD_BUFFER_SIZE (4L | (1L << 63)) #define EFI_BUFFER_TOO_SMALL (5L | (1L << 63)) #define EFI_NOT_FOUND (14L | (1L << 63)) typedef unsigned long efi_status_t; typedef u8 efi_bool_t; typedef u16 efi_char16_t; /* UNICODE character */ typedef struct { u32 data1; u16 data2; u16 data3; u8 data4[8]; } efi_guid_t; /* * Generic EFI table header */ typedef struct { u64 signature; u32 revision; u32 headersize; u32 crc32; u32 reserved; } efi_table_hdr_t; /* * Memory map descriptor: */ /* Memory types: */ #define EFI_RESERVED_TYPE 0 #define EFI_LOADER_CODE 1 #define EFI_LOADER_DATA 2 #define EFI_BOOT_SERVICES_CODE 3 #define EFI_BOOT_SERVICES_DATA 4 #define EFI_RUNTIME_SERVICES_CODE 5 #define EFI_RUNTIME_SERVICES_DATA 6 #define EFI_CONVENTIONAL_MEMORY 7 #define EFI_UNUSABLE_MEMORY 8 #define EFI_ACPI_RECLAIM_MEMORY 9 #define EFI_ACPI_MEMORY_NVS 10 #define EFI_MEMORY_MAPPED_IO 11 #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 #define EFI_PAL_CODE 13 #define EFI_MAX_MEMORY_TYPE 14 /* Attribute values: */ #define EFI_MEMORY_UC 0x0000000000000001 /* uncached */ #define EFI_MEMORY_WC 0x0000000000000002 /* write-coalescing */ #define EFI_MEMORY_WT 0x0000000000000004 /* write-through */ #define EFI_MEMORY_WB 0x0000000000000008 /* write-back */ #define EFI_MEMORY_WP 0x0000000000001000 /* write-protect */ #define EFI_MEMORY_RP 0x0000000000002000 /* read-protect */ #define EFI_MEMORY_XP 0x0000000000004000 /* execute-protect */ #define EFI_MEMORY_RUNTIME 0x8000000000000000 /* range requires runtime mapping */ #define EFI_MEMORY_DESCRIPTOR_VERSION 1 typedef struct { u32 type; u32 pad; u64 phys_addr; u64 virt_addr; u64 num_pages; u64 attribute; } efi_memory_desc_t; typedef int efi_freemem_callback_t (u64 start, u64 end, void *arg); /* * Types and defines for Time Services */ #define EFI_TIME_ADJUST_DAYLIGHT 0x1 #define EFI_TIME_IN_DAYLIGHT 0x2 #define EFI_UNSPECIFIED_TIMEZONE 0x07ff typedef struct { u16 year; u8 month; u8 day; u8 hour; u8 minute; u8 second; u8 pad1; u32 nanosecond; s16 timezone; u8 daylight; u8 pad2; } efi_time_t; typedef struct { u32 resolution; u32 accuracy; u8 sets_to_zero; } efi_time_cap_t; /* * Types and defines for EFI ResetSystem */ #define EFI_RESET_COLD 0 #define EFI_RESET_WARM 1 /* * EFI Runtime Services table */ #define EFI_RUNTIME_SERVICES_SIGNATURE 0x5652453544e5552 #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 typedef struct { efi_table_hdr_t hdr; u64 get_time; u64 set_time; u64 get_wakeup_time; u64 set_wakeup_time; u64 set_virtual_address_map; u64 convert_pointer; u64 get_variable; u64 get_next_variable; u64 set_variable; u64 get_next_high_mono_count; u64 reset_system; } efi_runtime_services_t; typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); typedef efi_status_t efi_set_time_t (efi_time_t *tm); typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm); typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, unsigned long *data_size, void *data); typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor); typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 attr, unsigned long data_size, void *data); typedef efi_status_t efi_get_next_high_mono_count_t (u64 *count); typedef void efi_reset_system_t (int reset_type, efi_status_t status, unsigned long data_size, efi_char16_t *data); /* * EFI Configuration Table and GUID definitions */ #define MPS_TABLE_GUID \ ((efi_guid_t) { 0xeb9d2d2f, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d }}) #define ACPI_TABLE_GUID \ ((efi_guid_t) { 0xeb9d2d30, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d }}) #define ACPI_20_TABLE_GUID \ ((efi_guid_t) { 0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 }}) #define SMBIOS_TABLE_GUID \ ((efi_guid_t) { 0xeb9d2d31, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d }}) #define SAL_SYSTEM_TABLE_GUID \ ((efi_guid_t) { 0xeb9d2d32, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d }}) typedef struct { efi_guid_t guid; u64 table; } efi_config_table_t; #define EFI_SYSTEM_TABLE_SIGNATURE 0x5453595320494249 #define EFI_SYSTEM_TABLE_REVISION ((1 << 16) | 00) typedef struct { efi_table_hdr_t hdr; u64 fw_vendor; /* physical addr of CHAR16 vendor string */ u32 fw_revision; u64 con_in_handle; u64 con_in; u64 con_out_handle; u64 con_out; u64 stderr_handle; u64 stderr; u64 runtime; u64 boottime; u64 nr_tables; u64 tables; } efi_system_table_t; /* * All runtime access to EFI goes through this structure: */ extern struct efi { efi_system_table_t *systab; /* EFI system table */ void *mps; /* MPS table */ void *acpi; /* ACPI table (IA64 ext 0.71) */ void *acpi20; /* ACPI table (ACPI 2.0) */ void *smbios; /* SM BIOS table */ void *sal_systab; /* SAL system table */ void *boot_info; /* boot info table */ efi_get_time_t *get_time; efi_set_time_t *set_time; efi_get_wakeup_time_t *get_wakeup_time; efi_set_wakeup_time_t *set_wakeup_time; efi_get_variable_t *get_variable; efi_get_next_variable_t *get_next_variable; efi_set_variable_t *set_variable; efi_get_next_high_mono_count_t *get_next_high_mono_count; efi_reset_system_t *reset_system; } efi; static inline int efi_guidcmp (efi_guid_t left, efi_guid_t right) { return memcmp(&left, &right, sizeof (efi_guid_t)); } extern void efi_init (void); extern void efi_map_pal_code (void); extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg); extern void efi_gettimeofday (struct timeval *tv); extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */ extern u64 efi_get_iobase (void); /* * Variable Attributes */ #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 /* * efi_dir is allocated in arch/ia64/kernel/efi.c. */ #ifdef CONFIG_PROC_FS extern struct proc_dir_entry *efi_dir; #endif #endif /* _ASM_IA64_EFI_H */