Edit File: bios.h
#ifndef _ASM_X86_UV_BIOS_H #define _ASM_X86_UV_BIOS_H /* * UV BIOS layer definitions. * * 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 * * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved. * Copyright (c) Russ Anderson <rja@sgi.com> */ #include <linux/rtc.h> /* * Values for the BIOS calls. It is passed as the first * argument in the * BIOS call. Passing any other value in the first argument will result * in a BIOS_STATUS_UNIMPLEMENTED return status. */ enum uv_bios_cmd { UV_BIOS_COMMON, UV_BIOS_GET_SN_INFO, UV_BIOS_FREQ_BASE, UV_BIOS_WATCHLIST_ALLOC, UV_BIOS_WATCHLIST_FREE, UV_BIOS_MEMPROTECT, UV_BIOS_GET_PARTITION_ADDR, UV_BIOS_SET_LEGACY_VGA_TARGET }; /* * Status values returned from a BIOS call. */ enum { BIOS_STATUS_MORE_PASSES = 1, BIOS_STATUS_SUCCESS = 0, BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, BIOS_STATUS_EINVAL = -EINVAL, BIOS_STATUS_UNAVAIL = -EBUSY, BIOS_STATUS_ABORT = -EINTR, }; /* Address map parameters */ struct uv_gam_parameters { u64 mmr_base; u64 gru_base; u8 mmr_shift; /* Convert PNode to MMR space offset */ u8 gru_shift; /* Convert PNode to GRU space offset */ u8 gpa_shift; /* Size of offset field in GRU phys addr */ u8 unused1; }; /* UV_TABLE_GAM_RANGE_ENTRY values */ #define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ #define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ #define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ #define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ #define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ #define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ #define UV_GAM_RANGE_TYPE_MAX 6 /* The structure stores PA bits 56:26, for 64MB granularity */ #define UV_GAM_RANGE_SHFT 26 /* 64MB */ struct uv_gam_range_entry { char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ char unused1; u16 nasid; /* HNasid */ u16 sockid; /* Socket ID, high bits of APIC ID */ u16 pnode; /* Index to MMR and GRU spaces */ u32 unused2; u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ }; #define UV_SYSTAB_SIG "UVST" #define UV_SYSTAB_VERSION_1 1 /* UV1/2/3 BIOS version */ #define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ #define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ #define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ #define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */ #define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3 #define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ #define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ #define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ #define UV_SYSTAB_TYPE_MAX 3 /* * The UV system table describes specific firmware * capabilities available to the Linux kernel at runtime. */ struct uv_systab { char signature[4]; /* must be UV_SYSTAB_SIG */ u32 revision; /* distinguish different firmware revs */ u64 function; /* BIOS runtime callback function ptr */ u32 size; /* systab size (starting with _VERSION_UV4) */ struct { u32 type:8; /* type of entry */ u32 offset:24; /* byte offset from struct start to entry */ } entry[1]; /* additional entries follow */ }; extern struct uv_systab *uv_systab; /* (... end of definitions from UV BIOS ...) */ enum { BIOS_FREQ_BASE_PLATFORM = 0, BIOS_FREQ_BASE_INTERVAL_TIMER = 1, BIOS_FREQ_BASE_REALTIME_CLOCK = 2 }; union partition_info_u { u64 val; struct { u64 hub_version : 8, partition_id : 16, coherence_id : 16, region_size : 24; }; }; enum uv_memprotect { UV_MEMPROT_RESTRICT_ACCESS, UV_MEMPROT_ALLOW_AMO, UV_MEMPROT_ALLOW_RW }; /* * bios calls have 6 parameters */ extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *); extern s64 uv_bios_freq_base(u64, u64 *); extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int, unsigned long *); extern int uv_bios_mq_watchlist_free(int, int); extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); extern int uv_bios_init(void); extern unsigned long sn_rtc_cycles_per_second; extern int uv_type; extern long sn_partition_id; extern long sn_coherency_id; extern long sn_region_size; extern long system_serial_number; #define uv_partition_coherence_id() (sn_coherency_id) extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ /* * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details */ extern struct semaphore __efi_uv_runtime_lock; #endif /* _ASM_X86_UV_BIOS_H */