From: Christophe Leroy <christophe.leroy@c-s.fr>
Date: Tue, 9 Feb 2016 16:08:23 +0000 (+0100)
Subject: powerpc: add inline functions for cache related instructions
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d6bfa02fccf58b957f457c1bd0bb71f6ab169a0b;p=linux-beck.git

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: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
---

diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 5f8229e24fe6..ffbafbf76b19 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 */