/*-
 * Copyright (c) 1995 Bruce D. Evans.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the author nor the names of contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/i386/include/md_var.h,v 1.35.2.4 2003/01/22 20:14:53 jhb Exp $
 * $DragonFly: src/sys/i386/include/Attic/md_var.h,v 1.18 2006/05/20 02:42:06 dillon Exp $
 */

#ifndef _MACHINE_MD_VAR_H_
#define	_MACHINE_MD_VAR_H_

#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif

/*
 * Miscellaneous machine-dependent declarations.
 */

extern	vm_paddr_t	Maxmem;
extern	u_int	atdevbase;	/* offset in virtual memory of ISA io mem */
extern	void	**bcopy_vector;
extern	void	**memcpy_vector;
extern	int	busdma_swi_pending;
extern	int	(*copyin_vector) (const void *udaddr, void *kaddr,
				      size_t len);
extern	int	(*copyout_vector) (const void *kaddr, void *udaddr,
				       size_t len);
extern	void	(*cpu_idle_hook)(void);
extern	u_int	cpu_exthigh;
extern	u_int	cpu_feature;
extern	u_int	cpu_fxsr;
extern	u_int	cpu_high;
extern	u_int	cpu_id;
extern	u_int	cpu_procinfo;
extern	char	cpu_vendor[];
extern	u_int	cyrix_did;
extern	char	kstack[];
extern	int	nfs_diskless_valid;
extern void	**ovbcopy_vector;
extern	char	sigcode[];
extern	int	szsigcode;

typedef void alias_for_inthand_t (u_int cs, u_int ef, u_int esp, u_int ss);
struct	lwp;
struct	reg;
struct	fpreg;
struct  dbreg;
struct  mdglobaldata;
struct  thread;

void	bcopyb (const void *from, void *to, size_t len);
void	bcopyi (const void *from, void *to, size_t len);
void	busdma_swi (void);
void	cpu_gdinit (struct mdglobaldata *gd, int cpu);
void	cpu_halt (void);
void	cpu_idle (void);
void	cpu_reset (void);
void	cpu_setregs (void);
void	cpu_switch_load_gs (void) __asm(__STRING(cpu_switch_load_gs));
void	cpu_heavy_restore (void);	/* cannot be called from C */
void	cpu_lwkt_restore (void);	/* cannot be called from C */
void	cpu_idle_restore (void);	/* cannot be called from C */
void	cpu_kthread_restore (void);/* cannot be called from C */
void	cpu_exit_idleptd (void); 	/* disassociate proc MMU */
void	cpu_exit_switch (struct thread *next);
void	doreti_iret (void) __asm(__STRING(doreti_iret));
void	doreti_iret_fault (void) __asm(__STRING(doreti_iret_fault));
void	doreti_popl_ds (void) __asm(__STRING(doreti_popl_ds));
void	doreti_popl_ds_fault (void) __asm(__STRING(doreti_popl_ds_fault));
void	doreti_popl_es (void) __asm(__STRING(doreti_popl_es));
void	doreti_popl_es_fault (void) __asm(__STRING(doreti_popl_es_fault));
void	doreti_popl_fs (void) __asm(__STRING(doreti_popl_fs));
void	doreti_popl_fs_fault (void) __asm(__STRING(doreti_popl_fs_fault));
void	enable_sse (void);
int	fill_fpregs (struct lwp *, struct fpreg *);
int	fill_regs (struct lwp *lp, struct reg *regs);
int	fill_dbregs (struct lwp *lp, struct dbreg *dbregs);
void	fillw (int /*u_short*/ pat, void *base, size_t cnt);
#if 0
void	i486_bzero (volatile void *buf, size_t len);
void	i586_bzero (volatile void *buf, size_t len);
void	i586_bcopy (const void *from, void *to, size_t len);
int	i586_copyin (const void *udaddr, void *kaddr, size_t len);
int	i586_copyout (const void *kaddr, void *udaddr, size_t len);
#endif
void	asm_generic_memcpy(void);
void	asm_mmx_memcpy(void);
void	asm_xmm_memcpy(void);
void	asm_generic_bcopy(void);
void	asm_mmx_bcopy(void);
void	asm_xmm_bcopy(void);
void	i686_pagezero (void *addr);
void	init_AMD_Elan_sc520(void);
int	is_physical_memory (vm_offset_t addr);
vm_paddr_t kvtop (void *addr);
void	setidt (int idx, alias_for_inthand_t *func, int typ, int dpl,
		    int selec);
void	userconfig (void);
int     user_dbreg_trap (void);
int	vm_page_zero_idle (void);

#endif /* !_MACHINE_MD_VAR_H_ */