freebsd-dev/sys/ia64/include/cpufunc.h
Marcel Moolenaar 18819cbb5c o Change ia64_memory_address to explicitly take a u_int64_t
o  Add memcpy_fromio, memcpy_io, memcpy_toio, memset_io,
   memsetw and memsetw_io. I'm not sure this is the right
   place for it, though.
2001-10-06 09:31:43 +00:00

304 lines
5.9 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>
#include <machine/ia64_cpu.h>
#ifdef __GNUC__
static __inline void
breakpoint(void)
{
__asm __volatile("break 0x80100"); /* XXX use linux value */
}
#endif
extern u_int64_t ia64_port_base;
static __inline volatile void *
ia64_port_address(u_int port)
{
return (volatile void *)(ia64_port_base
| ((port >> 2) << 12)
| (port & ((1 << 12) - 1)));
}
static __inline volatile void *
ia64_memory_address(u_int64_t addr)
{
return (volatile void *) IA64_PHYS_TO_RR6(addr);
}
static __inline u_int8_t
inb(u_int port)
{
volatile u_int8_t *p = ia64_port_address(port);
u_int8_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int16_t
inw(u_int port)
{
volatile u_int16_t *p = ia64_port_address(port);
u_int16_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int32_t
inl(u_int port)
{
volatile u_int32_t *p = ia64_port_address(port);
u_int32_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
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)
{
volatile u_int8_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outw(u_int port, u_int16_t data)
{
volatile u_int16_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outl(u_int port, u_int32_t data)
{
volatile u_int32_t *p = ia64_port_address(port);
*p = data;
ia64_mf_a();
ia64_mf();
}
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)
{
volatile u_int8_t *p = ia64_memory_address(addr);
u_int8_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int16_t
readw(u_int addr)
{
volatile u_int16_t *p = ia64_memory_address(addr);
u_int16_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline u_int32_t
readl(u_int addr)
{
volatile u_int32_t *p = ia64_memory_address(addr);
u_int32_t v = *p;
ia64_mf_a();
ia64_mf();
return v;
}
static __inline void
writeb(u_int addr, u_int8_t data)
{
volatile u_int8_t *p = ia64_memory_address(addr);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
writew(u_int addr, u_int16_t data)
{
volatile u_int16_t *p = ia64_memory_address(addr);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
writel(u_int addr, u_int32_t data)
{
volatile u_int32_t *p = ia64_memory_address(addr);
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
memcpy_fromio(u_int8_t *addr, size_t ofs, size_t count)
{
volatile u_int8_t *p = ia64_memory_address(ofs);
while (count--)
*addr++ = *p++;
}
static __inline void
memcpy_io(size_t dst, size_t src, size_t count)
{
volatile u_int8_t *dp = ia64_memory_address(dst);
volatile u_int8_t *sp = ia64_memory_address(src);
while (count--)
*dp++ = *sp++;
}
static __inline void
memcpy_toio(size_t ofs, u_int8_t *addr, size_t count)
{
volatile u_int8_t *p = ia64_memory_address(ofs);
while (count--)
*p++ = *addr++;
}
static __inline void
memset_io(size_t ofs, u_int8_t value, size_t count)
{
volatile u_int8_t *p = ia64_memory_address(ofs);
while (count--)
*p++ = value;
}
static __inline void
memsetw(u_int16_t *addr, int val, size_t size)
{
while (size--)
*addr++ = val;
}
static __inline void
memsetw_io(size_t ofs, u_int16_t value, size_t count)
{
volatile u_int16_t *p = ia64_memory_address(ofs);
while (count--)
*p++ = value;
}
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_ */