[PATCH v3 2/3] common: DMA-mapping: add DMA_ATTR_SEQUENTIAL attribute

2016-01-06 Thread Douglas Anderson
This patch adds the DMA_ATTR_SEQUENTIAL attribute to the DMA-mapping subsystem. This attribute can be used as a hint to the DMA-mapping subsystem that access to memory will be mostly sequential. With mostly sequential access TLB efficiency isn't as important, so the system may make tradeoffs

[PATCH v3 2/3] common: DMA-mapping: add DMA_ATTR_SEQUENTIAL attribute

2016-01-06 Thread Douglas Anderson
This patch adds the DMA_ATTR_SEQUENTIAL attribute to the DMA-mapping subsystem. This attribute can be used as a hint to the DMA-mapping subsystem that access to memory will be mostly sequential. With mostly sequential access TLB efficiency isn't as important, so the system may make tradeoffs