[PATCH v6 18/23] powerpc: add inline functions for cache related instructions
flat view
STALE3918d
SUPERSEDED
From: Christophe Leroy <hidden>
Date: 2016-02-04 10:33:51
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Status: Superseded by v8 (posted 2016-02-09). [go to v8]
Revision v6 (6 revisions archived).
Revisions (6)
This patch adds inline functions to use dcbz, dcbi, dcbf, dcbst from C functions Signed-off-by: Christophe Leroy <redacted> --- v2: new v3: no change v4: no change v5: no change v6: no change arch/powerpc/include/asm/cache.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 5f8229e..ffbafbf 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h@@ -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 */
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2.1.0