#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 }; /* * The UV system table describes specific firmware * capabilities available to the Linux kernel at runtime. */ struct uv_systab { char signature[4]; /* must be "UVST" */ u32 revision; /* distinguish different firmware revs */ u64 function; /* BIOS runtime callback function ptr */ }; 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_call_reentrant(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 void 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 partition_coherence_id() (sn_coherency_id) extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ #endif /* _ASM_X86_UV_BIOS_H */