2 Commits

Author	SHA1	Message	Date
Guo Ren	81b23ba645	csky: Fixup mb() synchronization problem ... The mb() is the superset of dma and smp. Using bar.xxx to implement mb() will cause problem when sync data with dma device, becasue bar.xxx couldn't guarantee bus transactions finished at outside bus level. We must use sync.s instead of bar.xxx for dma data synchronization and it will guarantee retirement after getting the bus bresponse. Changes for V2: - Use sync.s for all mb, rmb, wmb, dma_wmb, dma_rmb. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de>	2019-07-31 11:04:29 +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