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Commit d6bfa02f authored by Christophe Leroy's avatar Christophe Leroy Committed by Scott Wood
Browse files

powerpc: add inline functions for cache related instructions 



This patch adds inline functions to use dcbz, dcbi, dcbf, dcbst
from C functions

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarScott Wood <oss@buserror.net>
parent 766d45cb

arch/powerpc/include/asm/cache.h

+19 −0
Original line number Diff line number Diff line
@@ -69,6 +69,25 @@ extern void _set_L3CR(unsigned long); 
#define _set_L3CR(val)	do { } while(0)

#endif



static inline void dcbz(void *addr)

{

	__asm__ __volatile__ ("dcbz 0, %0" : : "r"(addr) : "memory");

}



static inline void dcbi(void *addr)

{

	__asm__ __volatile__ ("dcbi 0, %0" : : "r"(addr) : "memory");

}



static inline void dcbf(void *addr)

{

	__asm__ __volatile__ ("dcbf 0, %0" : : "r"(addr) : "memory");

}



static inline void dcbst(void *addr)

{

	__asm__ __volatile__ ("dcbst 0, %0" : : "r"(addr) : "memory");

}

#endif /* !__ASSEMBLY__ */

#endif /* __KERNEL__ */

#endif /* _ASM_POWERPC_CACHE_H */