On 05/18/2018 06:45 AM, Christoph Hellwig wrote: > Hi all, > > this series continues consolidating the dma-mapping code, with a focus > on architectures that do not (always) provide cache coherence for DMA. > Three architectures (arm, mips and powerpc) are still left to be > converted later due to complexity of their dma ops selection. > > The dma-noncoherent ops calls the dma-direct ops for the actual > translation of streaming mappins and allow the architecture to provide > any cache flushing required for cpu to device and/or device to cpu > ownership transfers. The dma coherent allocator is for now still left > entirely to architecture supplied implementations due the amount of > variations. Hopefully we can do some consolidation for them later on > as well. > > Because this series sits on top of two previously submitted series > a git tree might be useful to actually test it. It is provided here: > > git://git.infradead.org/users/hch/misc.git arc-dma > > Gitweb: > > https://urldefense.proofpoint.com/v2/url?u=http-3A__git.infradead.org_users_hch_misc.git_shortlog_refs_heads_arc-2Ddma&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=7FgpX6o3vAhwMrMhLh-4ZJey5kjdNUwOL2CWsFwR4T8&m=9mEjcnTLzOrHy9MqruvxfxgCZQ1c0Bs4EQ8F7G-F4M8&s=TV7HWlNcSsk79JReNvLa5u1vsIkJxrk_s6RsL5CMNW4&e= > > Changes since previous bigger series: > - take the offset into account in noncoherent_dma_map_page (Alexey Brodkin) > - fix dma directions in arc (Alexey Brodkin) > - split arc changes into smaller patches > LGTM ! Acked-by: Vineet Gupta <vgupta at synopsys.com> Thx, -Vineet
