115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
#ifndef _ASM_X86_UV_BIOS_H
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#define _ASM_X86_UV_BIOS_H
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/*
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* UV BIOS layer definitions.
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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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* Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
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* Copyright (c) Russ Anderson <rja@sgi.com>
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*/
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#include <linux/rtc.h>
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/*
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* Values for the BIOS calls. It is passed as the first * argument in the
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* BIOS call. Passing any other value in the first argument will result
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* in a BIOS_STATUS_UNIMPLEMENTED return status.
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*/
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enum uv_bios_cmd {
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UV_BIOS_COMMON,
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UV_BIOS_GET_SN_INFO,
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UV_BIOS_FREQ_BASE,
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UV_BIOS_WATCHLIST_ALLOC,
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UV_BIOS_WATCHLIST_FREE,
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UV_BIOS_MEMPROTECT,
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UV_BIOS_GET_PARTITION_ADDR,
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UV_BIOS_SET_LEGACY_VGA_TARGET
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};
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/*
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* Status values returned from a BIOS call.
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*/
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enum {
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BIOS_STATUS_MORE_PASSES = 1,
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BIOS_STATUS_SUCCESS = 0,
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BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
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BIOS_STATUS_EINVAL = -EINVAL,
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BIOS_STATUS_UNAVAIL = -EBUSY
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};
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/*
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* The UV system table describes specific firmware
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* capabilities available to the Linux kernel at runtime.
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*/
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struct uv_systab {
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char signature[4]; /* must be "UVST" */
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u32 revision; /* distinguish different firmware revs */
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u64 function; /* BIOS runtime callback function ptr */
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};
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enum {
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BIOS_FREQ_BASE_PLATFORM = 0,
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BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
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BIOS_FREQ_BASE_REALTIME_CLOCK = 2
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};
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union partition_info_u {
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u64 val;
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struct {
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u64 hub_version : 8,
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partition_id : 16,
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coherence_id : 16,
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region_size : 24;
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};
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};
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enum uv_memprotect {
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UV_MEMPROT_RESTRICT_ACCESS,
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UV_MEMPROT_ALLOW_AMO,
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UV_MEMPROT_ALLOW_RW
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};
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/*
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* bios calls have 6 parameters
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*/
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extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
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extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
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extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
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extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *);
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extern s64 uv_bios_freq_base(u64, u64 *);
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extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int,
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unsigned long *);
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extern int uv_bios_mq_watchlist_free(int, int);
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extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
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extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
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extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus);
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extern void uv_bios_init(void);
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extern unsigned long sn_rtc_cycles_per_second;
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extern int uv_type;
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extern long sn_partition_id;
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extern long sn_coherency_id;
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extern long sn_region_size;
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extern long system_serial_number;
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#define partition_coherence_id() (sn_coherency_id)
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extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
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#endif /* _ASM_X86_UV_BIOS_H */
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