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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-03-20 13:32:42 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-03-27 09:37:07 +0300 |
| commit | 233ba5461838a56c19600216f0919e7cd3aec40e (patch) | |
| tree | 9544c7f58b5c493d93a42eb053c2c0fc87e97532 | |
| parent | 968339fad422a58312f67718691b717dac45c399 (diff) | |
| download | linux-233ba5461838a56c19600216f0919e7cd3aec40e.tar.xz | |
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 <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200320103242.229223-1-aneesh.kumar@linux.ibm.com
| -rw-r--r-- | arch/powerpc/include/asm/cacheflush.h | 6 |
1 files changed, 1 insertions, 5 deletions
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(); } /* |