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2020-02-21csky: Add flush_icache_mm to defer flush icache allGuo Ren1-0/+1
Some CPUs don't support icache.va instruction to maintain the whole smp cores' icache. Using icache.all + IPI casue a lot on performace and using defer mechanism could reduce the number of calling icache _flush_all functions. Signed-off-by: Guo Ren <[email protected]>
2018-10-25csky: Cache and TLB routinesGuo Ren1-0/+9
This patch adds cache and tlb sync codes for abiv1 & abiv2. Signed-off-by: Guo Ren <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>