mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
269 lines
7.4 KiB
C
269 lines
7.4 KiB
C
/*-
|
|
* Copyright (c) 1993 The Regents of the University of California.
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
*
|
|
* Portions:
|
|
* Copyright (c) 1993 Charles Hannum.
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Charles Hannum.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
|
*
|
|
*
|
|
* $Id: cpufunc.h,v 1.26 1994/09/25 20:03:41 davidg Exp $
|
|
*/
|
|
|
|
|
|
/*
|
|
* Functions to provide access to special i386 instructions.
|
|
* XXX - bezillions more are defined in locore.s but are not declared anywhere.
|
|
*/
|
|
|
|
#ifndef _MACHINE_CPUFUNC_H_
|
|
#define _MACHINE_CPUFUNC_H_ 1
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <machine/spl.h>
|
|
|
|
#ifdef __GNUC__
|
|
|
|
static __inline void
|
|
insb(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;insb" :
|
|
: "d" (port), "D" (addr), "c" (cnt) : "%edi", "%ecx", "memory");
|
|
}
|
|
|
|
static __inline void
|
|
insw(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;insw" :
|
|
: "d" (port), "D" (addr), "c" (cnt) : "%edi", "%ecx", "memory");
|
|
}
|
|
|
|
static __inline void
|
|
insl(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;insl" :
|
|
: "d" (port), "D" (addr), "c" (cnt) : "%edi", "%ecx", "memory");
|
|
}
|
|
|
|
static __inline void
|
|
outsb(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;outsb" :
|
|
: "d" (port), "S" (addr), "c" (cnt) : "%esi", "%ecx");
|
|
}
|
|
|
|
static __inline void
|
|
outsw(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;outsw" :
|
|
: "d" (port), "S" (addr), "c" (cnt) : "%esi", "%ecx");
|
|
}
|
|
|
|
static __inline void
|
|
outsl(u_short port, void *addr, int cnt)
|
|
{
|
|
__asm __volatile("cld;repne;outsl" :
|
|
: "d" (port), "S" (addr), "c" (cnt) : "%esi", "%ecx");
|
|
}
|
|
|
|
static inline u_char
|
|
inb(u_short port)
|
|
{
|
|
u_char data;
|
|
|
|
__asm __volatile("inb %1,%0" : "=a" (data) : "d" (port));
|
|
return data;
|
|
}
|
|
|
|
static inline u_short
|
|
inw(u_short port)
|
|
{
|
|
u_short data;
|
|
|
|
__asm __volatile("inw %1,%0" : "=a" (data) : "d" (port));
|
|
return data;
|
|
}
|
|
|
|
static inline u_long
|
|
inl(u_short port)
|
|
{
|
|
u_long data;
|
|
|
|
__asm __volatile("inl %1,%0" : "=a" (data) : "d" (port));
|
|
return data;
|
|
}
|
|
|
|
static inline void
|
|
outb(u_short port, u_char val)
|
|
{
|
|
__asm __volatile("outb %0,%1" : :"a" (val), "d" (port));
|
|
}
|
|
|
|
static inline void
|
|
outw(u_short port, u_short val)
|
|
{
|
|
__asm __volatile("outw %0,%1" : :"a" (val), "d" (port));
|
|
}
|
|
|
|
static inline void
|
|
outl(u_short port, u_long val)
|
|
{
|
|
__asm __volatile("outl %0,%1" : :"a" (val), "d" (port));
|
|
}
|
|
|
|
static inline int bdb(void)
|
|
{
|
|
extern int bdb_exists;
|
|
|
|
if (!bdb_exists)
|
|
return (0);
|
|
__asm("int $3");
|
|
return (1);
|
|
}
|
|
|
|
static inline void
|
|
disable_intr(void)
|
|
{
|
|
__asm __volatile("cli");
|
|
}
|
|
|
|
static inline void
|
|
enable_intr(void)
|
|
{
|
|
__asm __volatile("sti");
|
|
}
|
|
|
|
static inline u_long
|
|
read_eflags()
|
|
{
|
|
u_long ef;
|
|
__asm __volatile("pushf; popl %0" : "=a" (ef));
|
|
return(ef);
|
|
}
|
|
|
|
static inline void
|
|
write_eflags(u_long ef)
|
|
{
|
|
__asm __volatile("pushl %0; popf" : : "a" ((u_long) ef));
|
|
}
|
|
|
|
static inline void
|
|
pmap_update()
|
|
{
|
|
__asm __volatile("movl %%cr3, %%eax; movl %%eax, %%cr3" : : : "ax");
|
|
}
|
|
|
|
static inline u_long
|
|
rcr2()
|
|
{
|
|
u_long data;
|
|
__asm __volatile("movl %%cr2,%%eax" : "=a" (data));
|
|
return data;
|
|
}
|
|
|
|
struct quehead {
|
|
struct quehead *qh_link;
|
|
struct quehead *qh_rlink;
|
|
};
|
|
|
|
static inline void
|
|
insque(void *a, void *b)
|
|
{
|
|
register struct quehead *element = a, *head = b;
|
|
element->qh_link = head->qh_link;
|
|
head->qh_link = (struct quehead *)element;
|
|
element->qh_rlink = (struct quehead *)head;
|
|
((struct quehead *)(element->qh_link))->qh_rlink
|
|
= (struct quehead *)element;
|
|
}
|
|
|
|
static inline void
|
|
remque(void *a)
|
|
{
|
|
register struct quehead *element = a;
|
|
((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
|
|
((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
|
|
element->qh_rlink = 0;
|
|
}
|
|
|
|
#else /* not __GNUC__ */
|
|
extern void insque __P((void *, void *));
|
|
extern void remque __P((void *));
|
|
|
|
int bdb __P((void));
|
|
void disable_intr __P((void));
|
|
void enable_intr __P((void));
|
|
u_char inb __P((u_int port));
|
|
void outb __P((u_int port, u_int data)); /* XXX - incompat */
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
void load_cr0 __P((u_int cr0));
|
|
u_int rcr0 __P((void));
|
|
void load_cr3(u_long);
|
|
u_long rcr3(void);
|
|
extern void DELAY(int);
|
|
|
|
void setidt __P((int, void (*)(), int, int));
|
|
extern u_long kvtop(void *);
|
|
extern void fillw(int /*u_short*/, void *, size_t);
|
|
extern void filli(int, void *, size_t);
|
|
|
|
#endif /* _MACHINE_CPUFUNC_H_ */
|