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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>
#ifndef _SYS_CDEFS_H_
#error this file needs sys/cdefs.h as a prerequisite
#endif
struct thread;
#define IA64_FIXED_BREAK 0x84B5D
#ifdef __GNUCLIKE_ASM
static __inline void
breakpoint(void)
{
__asm __volatile("break.m %0" :: "i"(IA64_FIXED_BREAK));
}
#define HAVE_INLINE_FFS
#define ffs(x) __builtin_ffs(x)
static __inline void
ia64_disable_intr(void)
{
__asm __volatile ("rsm psr.i");
}
static __inline void
ia64_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));
ia64_disable_intr();
return ((psr & IA64_PSR_I) ? 1 : 0);
}
static __inline void
intr_restore(register_t ie)
{
if (ie)
ia64_enable_intr();
}
#endif /* __GNUCLIKE_ASM */
#endif /* _KERNEL */
#endif /* !_MACHINE_CPUFUNC_H_ */
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