[deliverable/linux.git] / arch / x86 / include / asm / uv / 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 Silicon Graphics, Inc.  All Rights Reserved.
 *  Copyright (c) Russ Anderson
 */

#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
};

/*
 * Status values returned from a BIOS call.
 */
enum {
	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;
	};
};

/*
 * 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 *);
extern s64 uv_bios_freq_base(u64, u64 *);

extern void uv_bios_init(void);

extern int uv_type;
extern long sn_partition_id;
extern long uv_coherency_id;
extern long uv_region_size;
#define partition_coherence_id()	(uv_coherency_id)

extern struct kobject *sgi_uv_kobj;	/* /sys/firmware/sgi_uv */

#endif /* _ASM_X86_UV__BIOS_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_UV__BIOS_H
1965aae3 PA	2	#define _ASM_X86_UV__BIOS_H
7019cc2d RA	3
7019cc2d RA	4	/*
7f594232	5	* UV BIOS layer definitions.
7019cc2d RA	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
7f594232 RA	20	*
	21	* Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
	22	* Copyright (c) Russ Anderson
7019cc2d RA	23	*/
	24
	25	#include <linux/rtc.h>
	26
7f594232 RA	27	/*
	28	* Values for the BIOS calls. It is passed as the first * argument in the
	29	* BIOS call. Passing any other value in the first argument will result
	30	* in a BIOS_STATUS_UNIMPLEMENTED return status.
	31	*/
	32	enum uv_bios_cmd {
	33	UV_BIOS_COMMON,
	34	UV_BIOS_GET_SN_INFO,
	35	UV_BIOS_FREQ_BASE
	36	};
7019cc2d	37
7f594232 RA	38	/*
	39	* Status values returned from a BIOS call.
	40	*/
7019cc2d	41	enum {
7f594232 RA	42	BIOS_STATUS_SUCCESS = 0,
	43	BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
	44	BIOS_STATUS_EINVAL = -EINVAL,
	45	BIOS_STATUS_UNAVAIL = -EBUSY
7019cc2d RA	46	};
7019cc2d RA	47
7f594232 RA	48	/*
	49	* The UV system table describes specific firmware
	50	* capabilities available to the Linux kernel at runtime.
	51	*/
	52	struct uv_systab {
	53	char signature[4]; /* must be "UVST" */
	54	u32 revision; /* distinguish different firmware revs */
	55	u64 function; /* BIOS runtime callback function ptr */
	56	};
7019cc2d RA	57
7019cc2d RA	58	enum {
7f594232 RA	59	BIOS_FREQ_BASE_PLATFORM = 0,
	60	BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
	61	BIOS_FREQ_BASE_REALTIME_CLOCK = 2
7019cc2d RA	62	};
7019cc2d RA	63
922402f1 RA	64	union partition_info_u {
	65	u64 val;
	66	struct {
	67	u64 hub_version : 8,
	68	partition_id : 16,
	69	coherence_id : 16,
	70	region_size : 24;
	71	};
	72	};
	73
7f594232 RA	74	/*
	75	* bios calls have 6 parameters
	76	*/
	77	extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	78	extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	79	extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	80
922402f1 RA	81	extern s64 uv_bios_get_sn_info(int, int , long , long , long );
	82	extern s64 uv_bios_freq_base(u64, u64 *);
	83
7f594232	84	extern void uv_bios_init(void);
7019cc2d	85
922402f1 RA	86	extern int uv_type;
	87	extern long sn_partition_id;
	88	extern long uv_coherency_id;
	89	extern long uv_region_size;
	90	#define partition_coherence_id() (uv_coherency_id)
	91
fc8c2d76	92	extern struct kobject sgi_uv_kobj; / /sys/firmware/sgi_uv */
7019cc2d	93
1965aae3	94	#endif /* _ASM_X86_UV__BIOS_H */