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3 commits

Author SHA1 Message Date
Guo Ren
6607aa6f6b csky: Fixup compile error 
: error: C++ style comments are not allowed in ISO C90
 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
 ^
error: (this will be reported only once per input file)

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
 2021-02-27 22:04:14 +08:00
Guo Ren
997153b9a7 csky: Add flush_icache_mm to defer flush icache all 
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 <guoren@linux.alibaba.com>
 2020-02-21 15:43:24 +08:00
Guo Ren
00a9730e10 csky: Cache and TLB routines 
This patch adds cache and tlb sync codes for abiv1 & abiv2.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
 2018-10-25 23:36:19 +08:00