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#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 */