From 233ba5461838a56c19600216f0919e7cd3aec40e Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 20 Mar 2020 16:02:42 +0530 Subject: powerpc/64: Avoid isync in flush_dcache_range() As per ISA an isync is only needed on instruction cache block invalidate. Remove the same from dcache invalidate. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200320103242.229223-1-aneesh.kumar@linux.ibm.com --- arch/powerpc/include/asm/cacheflush.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h index 4a1c9f0200e1..e92191b390f3 100644 --- a/arch/powerpc/include/asm/cacheflush.h +++ b/arch/powerpc/include/asm/cacheflush.h @@ -65,17 +65,13 @@ static inline void flush_dcache_range(unsigned long start, unsigned long stop) unsigned long size = stop - (unsigned long)addr + (bytes - 1); unsigned long i; - if (IS_ENABLED(CONFIG_PPC64)) { + if (IS_ENABLED(CONFIG_PPC64)) mb(); /* sync */ - isync(); - } for (i = 0; i < size >> shift; i++, addr += bytes) dcbf(addr); mb(); /* sync */ - if (IS_ENABLED(CONFIG_PPC64)) - isync(); } /* -- cgit