mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
034dc442ad
sections. - Add implementations of the critical_enter() and critical_exit() functions and remove restore_intr() and save_intr(). - Remove the somewhat bogus disable_intr() and enable_intr() functions on the alpha as the alpha actually uses a priority level and not simple bit flag on the CPU.
197 lines
3.9 KiB
C
197 lines
3.9 KiB
C
/*-
|
|
* Copyright (c) 1998 Doug Rabson
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_CPUFUNC_H_
|
|
#define _MACHINE_CPUFUNC_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifdef __GNUC__
|
|
|
|
static __inline void
|
|
breakpoint(void)
|
|
{
|
|
__asm __volatile("break 0x80100"); /* XXX use linux value */
|
|
}
|
|
|
|
#endif
|
|
|
|
static __inline u_int8_t
|
|
inb(u_int port)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline u_int16_t
|
|
inw(u_int port)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline u_int32_t
|
|
inl(u_int port)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
insb(u_int port, void *addr, size_t count)
|
|
{
|
|
u_int8_t *p = addr;
|
|
while (count--)
|
|
*p++ = inb(port);
|
|
}
|
|
|
|
static __inline void
|
|
insw(u_int port, void *addr, size_t count)
|
|
{
|
|
u_int16_t *p = addr;
|
|
while (count--)
|
|
*p++ = inw(port);
|
|
}
|
|
|
|
static __inline void
|
|
insl(u_int port, void *addr, size_t count)
|
|
{
|
|
u_int32_t *p = addr;
|
|
while (count--)
|
|
*p++ = inl(port);
|
|
}
|
|
|
|
static __inline void
|
|
outb(u_int port, u_int8_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
outw(u_int port, u_int16_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
outl(u_int port, u_int32_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
outsb(u_int port, const void *addr, size_t count)
|
|
{
|
|
const u_int8_t *p = addr;
|
|
while (count--)
|
|
outb(port, *p++);
|
|
}
|
|
|
|
static __inline void
|
|
outsw(u_int port, const void *addr, size_t count)
|
|
{
|
|
const u_int16_t *p = addr;
|
|
while (count--)
|
|
outw(port, *p++);
|
|
}
|
|
|
|
static __inline void
|
|
outsl(u_int port, const void *addr, size_t count)
|
|
{
|
|
const u_int32_t *p = addr;
|
|
while (count--)
|
|
outl(port, *p++);
|
|
}
|
|
|
|
static __inline u_int8_t
|
|
readb(u_int addr)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline u_int16_t
|
|
readw(u_int addr)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline u_int32_t
|
|
readl(u_int addr)
|
|
{
|
|
return 0; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
writeb(u_int addr, u_int8_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
writew(u_int addr, u_int16_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
writel(u_int addr, u_int32_t data)
|
|
{
|
|
return; /* TODO: implement this */
|
|
}
|
|
|
|
static __inline void
|
|
disable_intr(void)
|
|
{
|
|
__asm __volatile ("rsm psr.i;;");
|
|
}
|
|
|
|
static __inline void
|
|
enable_intr(void)
|
|
{
|
|
__asm __volatile (";; ssm psr.i;; srlz.d");
|
|
}
|
|
|
|
static __inline critical_t
|
|
critical_enter(void)
|
|
{
|
|
critical_t psr;
|
|
|
|
__asm __volatile ("mov %0=psr;;" : "=r" (psr));
|
|
disable_intr();
|
|
return (psr);
|
|
}
|
|
|
|
static __inline void
|
|
critical_exit(critical_t psr)
|
|
{
|
|
__asm __volatile ("mov psr.l=%0;; srlz.d" :: "r" (psr));
|
|
}
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_CPUFUNC_H_ */
|