diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/rtems/powerpc/cache.h')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/rtems/powerpc/cache.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/rtems/powerpc/cache.h b/c/src/lib/libcpu/powerpc/rtems/powerpc/cache.h new file mode 100644 index 0000000000..a728bfd0e5 --- /dev/null +++ b/c/src/lib/libcpu/powerpc/rtems/powerpc/cache.h @@ -0,0 +1,42 @@ +/* + * $Id$ + */ + +#ifndef _rtems_powerpc_cache_h +#define _rtems_powerpc_cache_h + +#include <rtems/score/ppc.h> + +#ifdef _OLD_EXCEPTIONS + +#if (PPC_D_CACHE != 0) +#define _CPU_Data_Cache_Block_Flush( _address ) \ + do { register void *__address = (_address); \ + register unsigned32 _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 unsigned32 _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 |