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/* $OpenBSD: atomic.h,v 1.3 2007/04/26 20:52:48 miod Exp $ */
/* Public Domain */
#ifndef __HPPA_ATOMIC_H__
#define __HPPA_ATOMIC_H__
#if defined(_KERNEL)
static __inline void
atomic_setbits_int(__volatile unsigned int *uip, unsigned int v)
{
register_t eiem;
__asm __volatile("mfctl %%cr15, %0": "=r" (eiem));
__asm __volatile("mtctl %r0, %cr15");
*uip |= v;
__asm __volatile("mtctl %0, %%cr15":: "r" (eiem));
}
static __inline void
atomic_clearbits_int(__volatile unsigned int *uip, unsigned int v)
{
register_t eiem;
__asm __volatile("mfctl %%cr15, %0": "=r" (eiem));
__asm __volatile("mtctl %r0, %cr15");
*uip &= ~v;
__asm __volatile("mtctl %0, %%cr15":: "r" (eiem));
}
static __inline void
atomic_setbits_long(__volatile unsigned long *uip, unsigned long v)
{
register_t eiem;
__asm __volatile("mfctl %%cr15, %0": "=r" (eiem));
__asm __volatile("mtctl %r0, %cr15");
*uip |= v;
__asm __volatile("mtctl %0, %%cr15":: "r" (eiem));
}
static __inline void
atomic_clearbits_long(__volatile unsigned long *uip, unsigned long v)
{
register_t eiem;
__asm __volatile("mfctl %%cr15, %0": "=r" (eiem));
__asm __volatile("mtctl %r0, %cr15");
*uip &= ~v;
__asm __volatile("mtctl %0, %%cr15":: "r" (eiem));
}
#endif /* defined(_KERNEL) */
#endif /* __HPPA_ATOMIC_H__ */
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