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authorGuo Ren <guoren@linux.alibaba.com>2020-01-27 01:20:36 +0800
committerGuo Ren <guoren@linux.alibaba.com>2020-02-21 15:43:24 +0800
commitd936a7e708dcf22344c4420e8b0e36f5d5f8c073 (patch)
treeb9b305756f2fb2696bb14f649b9ec5ccebb2858c /Documentation
parenta1176734132c630b50908c36563e05fb3599682c (diff)
csky: Enable defer flush_dcache_page for abiv2 cpus (807/810/860)
Instead of flushing cache per update_mmu_cache() called, we use flush_dcache_page to reduce the frequency of flashing the cache. As abiv2 cpus are all PIPT for icache & dcache, we needn't handle dcache aliasing problem. But their icache can't snoop dcache, so we still need sync_icache_dcache in update_mmu_cache(). Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
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