d184e84f7e
Changed u_int_inb to just inb and deleted define. The code generated is identical to that generated with the cast so the problem was obviously fixed at some point after gcc 1.4 Reviewed by: Submitted by:
162 lines
4.5 KiB
C
162 lines
4.5 KiB
C
/*-
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* Copyright (c) 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: cpufunc.h,v 1.18 1994/08/23 11:57:19 paul Exp $
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*/
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/*
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* Functions to provide access to special i386 instructions.
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* XXX - bezillions more are defined in locore.s but are not declared anywhere.
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*/
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#ifndef _MACHINE_CPUFUNC_H_
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#define _MACHINE_CPUFUNC_H_ 1
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <machine/spl.h>
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#ifdef __GNUC__
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static inline int bdb(void)
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{
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extern int bdb_exists;
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if (!bdb_exists)
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return (0);
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__asm("int $3");
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return (1);
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}
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static inline void
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disable_intr(void)
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{
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__asm __volatile("cli");
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}
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static inline void
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enable_intr(void)
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{
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__asm __volatile("sti");
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}
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static inline u_char
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inb(u_int port)
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{
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u_char data;
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/*
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* We use %%dx and not %1 here because i/o is done at %dx and not at
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* %edx, while gcc-2.2.2 generates inferior code (movw instead of movl)
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* if we tell it to load (u_short) port.
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*/
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__asm __volatile("inb %%dx,%0" : "=a" (data) : "d" (port));
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return data;
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}
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static inline void
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outb(u_int port, u_char data)
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{
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u_char al;
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al = data; /* help gcc-1.40's register allocator */
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__asm __volatile("outb %0,%%dx" : : "a" (al), "d" (port));
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}
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static inline void
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tlbflush()
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{
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__asm __volatile("movl %%cr3, %%eax; movl %%eax, %%cr3" : : : "ax");
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}
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static inline u_long
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rcr2()
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{
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u_long data;
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__asm __volatile("movl %%cr2,%%eax" : "=a" (data));
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return data;
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}
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struct quehead {
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struct quehead *qh_link;
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struct quehead *qh_rlink;
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};
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static inline void
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insque(void *a, void *b)
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{
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register struct quehead *element = a, *head = b;
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element->qh_link = head->qh_link;
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head->qh_link = (struct quehead *)element;
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element->qh_rlink = (struct quehead *)head;
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((struct quehead *)(element->qh_link))->qh_rlink
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= (struct quehead *)element;
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}
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static inline void
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remque(void *a)
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{
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register struct quehead *element = a;
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((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
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((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
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element->qh_rlink = 0;
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}
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#else /* not __GNUC__ */
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extern void insque __P((void *, void *));
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extern void remque __P((void *));
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int bdb __P((void));
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void disable_intr __P((void));
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void enable_intr __P((void));
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u_char inb __P((u_int port));
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void outb __P((u_int port, u_int data)); /* XXX - incompat */
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#endif /* __GNUC__ */
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void load_cr0 __P((u_int cr0));
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u_int rcr0 __P((void));
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void load_cr3(u_long);
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u_long rcr3(void);
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extern void DELAY(int);
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void setidt __P((int, void (*)(), int, int));
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extern u_long kvtop(void *);
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extern void outw(int /*u_short*/, int /*u_short*/); /* XXX inline!*/
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extern void outsb(int /*u_short*/, void *, size_t);
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extern void outsw(int /*u_short*/, void *, size_t);
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extern void insw(int /*u_short*/, void *, size_t);
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extern void fillw(int /*u_short*/, void *, size_t);
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extern void filli(int, void *, size_t);
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#endif /* _MACHINE_CPUFUNC_H_ */
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