Age | Commit message (Collapse) | Author | |
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2019-08-06 | csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range | Guo Ren | |
DMA_FROM_DEVICE only need to read dma data of memory into CPU cache, so there is no need to clear cache before. Also clear + inv for DMA_FROM_DEVICE won't cause problem, because the memory range for dma won't be touched by software during dma working. Changes for V2: - Remove clr cache and ignore the DMA_TO_DEVICE in _for_cpu. - Change inv to wbinv cache with DMA_FROM_DEVICE in _for_device. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de> | |||
2018-10-25 | csky: Cache and TLB routines | Guo Ren | |
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> |