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/* $OpenBSD: atomic.h,v 1.4 2011/03/23 16:54:36 pirofti Exp $ */
/* Public Domain */
#ifndef _SH_ATOMIC_H_
#define _SH_ATOMIC_H_
#if defined(_KERNEL)
#include <sh/psl.h>
static __inline void
atomic_setbits_int(__volatile unsigned int *uip, unsigned int v)
{
unsigned int sr;
__asm__ __volatile__ ("stc sr, %0" : "=r"(sr));
__asm__ __volatile__ ("ldc %0, sr" : : "r"(sr | PSL_IMASK));
*uip |= v;
__asm__ __volatile__ ("ldc %0, sr" : : "r"(sr));
}
static __inline void
atomic_clearbits_int(__volatile unsigned int *uip, unsigned int v)
{
unsigned int sr;
__asm__ __volatile__ ("stc sr, %0" : "=r"(sr));
__asm__ __volatile__ ("ldc %0, sr" : : "r"(sr | PSL_IMASK));
*uip &= ~v;
__asm__ __volatile__ ("ldc %0, sr" : : "r"(sr));
}
#endif /* defined(_KERNEL) */
#endif /* _SH_ATOMIC_H_ */
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