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/* $OpenBSD: atomic.h,v 1.5 2007/12/05 22:09:13 miod Exp $ */
/* Public Domain */
#ifndef __M88K_ATOMIC_H__
#define __M88K_ATOMIC_H__
#if defined(_KERNEL)
#include <machine/asm_macro.h>
#include <machine/lock.h>
#include <machine/psl.h>
#ifdef MULTIPROCESSOR
extern __cpu_simple_lock_t __atomic_lock;
#endif
static __inline void
atomic_setbits_int(__volatile unsigned int *uip, unsigned int v)
{
u_int psr;
psr = get_psr();
set_psr(psr | PSR_IND);
#ifdef MULTIPROCESSOR
__cpu_simple_lock(&__atomic_lock);
#endif
*uip |= v;
#ifdef MULTIPROCESSOR
__cpu_simple_unlock(&__atomic_lock);
#endif
set_psr(psr);
}
static __inline void
atomic_clearbits_int(__volatile unsigned int *uip, unsigned int v)
{
u_int psr;
psr = get_psr();
set_psr(psr | PSR_IND);
#ifdef MULTIPROCESSOR
__cpu_simple_lock(&__atomic_lock);
#endif
*uip &= ~v;
#ifdef MULTIPROCESSOR
__cpu_simple_unlock(&__atomic_lock);
#endif
set_psr(psr);
}
#endif /* defined(_KERNEL) */
#endif /* __M88K_ATOMIC_H__ */
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