diff options
Diffstat (limited to 'sys/arch/hppa/include/atomic.h')
| -rw-r--r-- | sys/arch/hppa/include/atomic.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/sys/arch/hppa/include/atomic.h b/sys/arch/hppa/include/atomic.h index ee7b4a4ab27..16514db9153 100644 --- a/sys/arch/hppa/include/atomic.h +++ b/sys/arch/hppa/include/atomic.h @@ -1,4 +1,4 @@ -/* $OpenBSD: atomic.h,v 1.2 2007/02/19 17:18:42 deraadt Exp $ */ +/* $OpenBSD: atomic.h,v 1.3 2007/04/26 20:52:48 miod Exp $ */ /* Public Domain */ @@ -10,13 +10,45 @@ 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) */ |