Re: [PATCH 2/2] MIPS: remove support for DMA_ATTR_WRITE_COMBINE

2019-09-18 Thread Maciej W. Rozycki
On Wed, 7 Aug 2019, Christoph Hellwig wrote: > Mips uses the KSEG1 kernel memory segment to map dma coherent > allocations for non-coherent devices as uncacheable, and does not have > any kind of special support for DMA_ATTR_WRITE_COMBINE in the allocation > path. Thus supporting DMA_ATTR_WRITE_C

Re: [PATCH 2/2] MIPS: remove support for DMA_ATTR_WRITE_COMBINE

2019-08-05 Thread Sergei Shtylyov
Hello! On 05.08.2019 11:01, Christoph Hellwig wrote: Mips uses the KSEG1 kernel memory segment do map dma coherent MIPS. s/do/to/? allocations for n on-coherent devices as uncachable, and does not have Uncacheable? any kind of special support for DMA_ATTR_WRITE_COMBINE in the al