[linux-2.6-block.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) 2008-2009 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 */
Commit	Line	Data
05e4d316 PA	1	#ifndef _ASM_X86_UV_BIOS_H
05e4d316 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	20	*
b76365a1 RA	21	* Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
b76365a1 RA	22	* Copyright (c) Russ Anderson <rja@sgi.com>
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,
64ccf2f9 RA	35	UV_BIOS_FREQ_BASE,
64ccf2f9 RA	36	UV_BIOS_WATCHLIST_ALLOC,
e8929c8a	37	UV_BIOS_WATCHLIST_FREE,
23c35700	38	UV_BIOS_MEMPROTECT,
841582ea MT	39	UV_BIOS_GET_PARTITION_ADDR,
841582ea MT	40	UV_BIOS_SET_LEGACY_VGA_TARGET
7f594232	41	};
7019cc2d	42
7f594232 RA	43	/*
	44	* Status values returned from a BIOS call.
	45	*/
7019cc2d	46	enum {
23c35700	47	BIOS_STATUS_MORE_PASSES = 1,
7f594232 RA	48	BIOS_STATUS_SUCCESS = 0,
	49	BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
	50	BIOS_STATUS_EINVAL = -EINVAL,
	51	BIOS_STATUS_UNAVAIL = -EBUSY
7019cc2d RA	52	};
7019cc2d RA	53
7f594232 RA	54	/*
	55	* The UV system table describes specific firmware
	56	* capabilities available to the Linux kernel at runtime.
	57	*/
	58	struct uv_systab {
	59	char signature[4]; /* must be "UVST" */
	60	u32 revision; /* distinguish different firmware revs */
	61	u64 function; /* BIOS runtime callback function ptr */
	62	};
7019cc2d RA	63
7019cc2d RA	64	enum {
7f594232 RA	65	BIOS_FREQ_BASE_PLATFORM = 0,
	66	BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
	67	BIOS_FREQ_BASE_REALTIME_CLOCK = 2
7019cc2d RA	68	};
7019cc2d RA	69
922402f1 RA	70	union partition_info_u {
	71	u64 val;
	72	struct {
	73	u64 hub_version : 8,
	74	partition_id : 16,
	75	coherence_id : 16,
	76	region_size : 24;
	77	};
	78	};
	79
e8929c8a RA	80	enum uv_memprotect {
	81	UV_MEMPROT_RESTRICT_ACCESS,
	82	UV_MEMPROT_ALLOW_AMO,
	83	UV_MEMPROT_ALLOW_RW
	84	};
	85
7f594232 RA	86	/*
	87	* bios calls have 6 parameters
	88	*/
	89	extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	90	extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	91	extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
	92
b76365a1	93	extern s64 uv_bios_get_sn_info(int, int , long , long , long , long *);
922402f1	94	extern s64 uv_bios_freq_base(u64, u64 *);
c2c9f115	95	extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int,
64ccf2f9 RA	96	unsigned long *);
64ccf2f9 RA	97	extern int uv_bios_mq_watchlist_free(int, int);
e8929c8a	98	extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
23c35700	99	extern s64 uv_bios_reserved_page_pa(u64, u64 , u64 , u64 *);
841582ea	100	extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus);
922402f1	101
7f594232	102	extern void uv_bios_init(void);
7019cc2d	103
64ccf2f9	104	extern unsigned long sn_rtc_cycles_per_second;
922402f1 RA	105	extern int uv_type;
922402f1 RA	106	extern long sn_partition_id;
b0f20989 RA	107	extern long sn_coherency_id;
b0f20989 RA	108	extern long sn_region_size;
b76365a1	109	extern long system_serial_number;
b0f20989	110	#define partition_coherence_id() (sn_coherency_id)
922402f1	111
fc8c2d76	112	extern struct kobject sgi_uv_kobj; / /sys/firmware/sgi_uv */
7019cc2d	113
05e4d316	114	#endif /* _ASM_X86_UV_BIOS_H */