diff options
Diffstat (limited to 'bsps/powerpc/include/rtems/powerpc/cache.h')
| -rw-r--r-- | bsps/powerpc/include/rtems/powerpc/cache.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/bsps/powerpc/include/rtems/powerpc/cache.h b/bsps/powerpc/include/rtems/powerpc/cache.h new file mode 100644 index 0000000000..1fdc75ae8b --- /dev/null +++ b/bsps/powerpc/include/rtems/powerpc/cache.h @@ -0,0 +1,38 @@ +#ifndef _RTEMS_POWERPC_CACHE_H +#define _RTEMS_POWERPC_CACHE_H + +#include <rtems/powerpc/powerpc.h> /* for PPC_D_CACHE */ + +#ifdef _OLD_EXCEPTIONS + +#if (PPC_D_CACHE != 0) +#define _CPU_Data_Cache_Block_Flush( _address ) \ + do { register void *__address = (_address); \ + register uint32_t _zero = 0; \ + __asm__ volatile ( "dcbf %0,%1" : \ + "=r" (_zero), "=r" (__address) : \ + "0" (_zero), "1" (__address) \ + ); \ + } while (0) +#else +#define _CPU_Data_Cache_Block_Flush( _address ) /* nop */ +#endif + +/* + * FIXME: This is not used anywhere. + */ +#if (PPC_D_CACHE != 0) +#define _CPU_Data_Cache_Block_Invalidate( _address ) \ + do { register void *__address = (_address); \ + register uint32_t _zero = 0; \ + __asm__ volatile ( "dcbi %0,%1" : \ + "=r" (_zero), "=r" (__address) : \ + "0" (_zero), "1" (__address) \ + ); \ + } while (0) +#else +#define _CPU_Data_Cache_Block_Invalidate( _address ) /* nop */ +#endif +#endif + +#endif |