RTEMS  5.0.0
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cache.h
1 #ifndef _RTEMS_POWERPC_CACHE_H
2 #define _RTEMS_POWERPC_CACHE_H
3 
4 #include <rtems/powerpc/powerpc.h> /* for PPC_D_CACHE */
5 
6 #ifdef _OLD_EXCEPTIONS
7 
8 #if (PPC_D_CACHE != 0)
9 #define _CPU_Data_Cache_Block_Flush( _address ) \
10  do { register void *__address = (_address); \
11  register uint32_t _zero = 0; \
12  __asm__ volatile ( "dcbf %0,%1" : \
13  "=r" (_zero), "=r" (__address) : \
14  "0" (_zero), "1" (__address) \
15  ); \
16  } while (0)
17 #else
18 #define _CPU_Data_Cache_Block_Flush( _address ) /* nop */
19 #endif
20 
21 /*
22  * FIXME: This is not used anywhere.
23  */
24 #if (PPC_D_CACHE != 0)
25 #define _CPU_Data_Cache_Block_Invalidate( _address ) \
26  do { register void *__address = (_address); \
27  register uint32_t _zero = 0; \
28  __asm__ volatile ( "dcbi %0,%1" : \
29  "=r" (_zero), "=r" (__address) : \
30  "0" (_zero), "1" (__address) \
31  ); \
32  } while (0)
33 #else
34 #define _CPU_Data_Cache_Block_Invalidate( _address ) /* nop */
35 #endif
36 #endif
37 
38 #endif
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