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/*-
* 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>
#include <machine/vmparam.h>
struct thread;
#ifdef __GNUC__
static __inline void
breakpoint(void)
{
__asm __volatile("break 0x80100"); /* XXX use linux value */
}
#define HAVE_INLINE_FFS
static __inline int
ffs(int mask)
{
return (__builtin_ffs(mask));
}
#endif
extern uint64_t ia64_port_base;
#define __MEMIO_ADDR(x) (__volatile void*)(IA64_PHYS_TO_RR6(x))
#define __PIO_ADDR(x) (__volatile void*)(ia64_port_base | \
(((x) & 0xFFFC) << 10) | ((x) & 0xFFF))
/*
* I/O port reads with ia32 semantics.
*/
static __inline uint8_t
inb(unsigned int port)
{
__volatile uint8_t *p;
uint8_t v;
p = __PIO_ADDR(port);
ia64_mf();
v = *p;
ia64_mf_a();
ia64_mf();
return (v);
}
static __inline uint16_t
inw(unsigned int port)
{
__volatile uint16_t *p;
uint16_t v;
p = __PIO_ADDR(port);
ia64_mf();
v = *p;
ia64_mf_a();
ia64_mf();
return (v);
}
static __inline uint32_t
inl(unsigned int port)
{
volatile uint32_t *p;
uint32_t v;
p = __PIO_ADDR(port);
ia64_mf();
v = *p;
ia64_mf_a();
ia64_mf();
return (v);
}
static __inline void
insb(unsigned int port, void *addr, size_t count)
{
uint8_t *buf = addr;
while (count--)
*buf++ = inb(port);
}
static __inline void
insw(unsigned int port, void *addr, size_t count)
{
uint16_t *buf = addr;
while (count--)
*buf++ = inw(port);
}
static __inline void
insl(unsigned int port, void *addr, size_t count)
{
uint32_t *buf = addr;
while (count--)
*buf++ = inl(port);
}
static __inline void
outb(unsigned int port, uint8_t data)
{
volatile uint8_t *p;
p = __PIO_ADDR(port);
ia64_mf();
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outw(unsigned int port, uint16_t data)
{
volatile uint16_t *p;
p = __PIO_ADDR(port);
ia64_mf();
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outl(unsigned int port, uint32_t data)
{
volatile uint32_t *p;
p = __PIO_ADDR(port);
ia64_mf();
*p = data;
ia64_mf_a();
ia64_mf();
}
static __inline void
outsb(unsigned int port, const void *addr, size_t count)
{
const uint8_t *buf = addr;
while (count--)
outb(port, *buf++);
}
static __inline void
outsw(unsigned int port, const void *addr, size_t count)
{
const uint16_t *buf = addr;
while (count--)
outw(port, *buf++);
}
static __inline void
outsl(unsigned int port, const void *addr, size_t count)
{
const uint32_t *buf = addr;
while (count--)
outl(port, *buf++);
}
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 register_t
intr_disable(void)
{
register_t psr;
__asm __volatile ("mov %0=psr;;" : "=r"(psr));
disable_intr();
return ((psr & IA64_PSR_I) ? 1 : 0);
}
static __inline void
intr_restore(register_t ie)
{
if (ie)
enable_intr();
}
#endif /* _KERNEL */
#endif /* !_MACHINE_CPUFUNC_H_ */
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