riscv: move flush_icache_{all,mm} to cacheflush.c

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Currently, flush_icache_all is macro-expanded into a SBI call, yet no
asm/sbi.h is included in asm/cacheflush.h. This could be moved to
mm/cacheflush.c instead (SBI call will dominate performance-wise and
there is no worry to not have it inlined.

Currently, flush_icache_mm stays in kernel/smp.c, which looks like a
hack to prevent it from being compiled when CONFIG_SMP=n. It should
also be in mm/cacheflush.c.

Signed-off-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

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Gary Guo 2019-03-27 00:41:25 +00:00 • committed by Palmer Dabbelt

parent f91253a3d0

commit 58de77545e

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3 changed files with 62 additions and 50 deletions

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2

arch/riscv/include/asm/cacheflush.h

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49

arch/riscv/kernel/smp.c

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61

arch/riscv/mm/cacheflush.c

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