Re: [PATCH 4/4] staging: android: ion: Support for mapping with dma mapping attributes

On Mon, 21 Jan 2019, Brian Starkey wrote: > Hi Liam, > > On Fri, Jan 18, 2019 at 10:37:47AM -0800, Liam Mark wrote: > > Add support for configuring dma mapping attributes when mapping > > and unmapping memory through dma_buf_map_attachment and > > dma_buf_unmap_attachment. > > > > For example th

Re: [PATCH 4/4] staging: android: ion: Support for mapping with dma mapping attributes

Hi Liam, On Fri, Jan 18, 2019 at 10:37:47AM -0800, Liam Mark wrote: > Add support for configuring dma mapping attributes when mapping > and unmapping memory through dma_buf_map_attachment and > dma_buf_unmap_attachment. > > For example this will allow ION clients to skip cache maintenance, by > u

[PATCH 4/4] staging: android: ion: Support for mapping with dma mapping attributes

Add support for configuring dma mapping attributes when mapping and unmapping memory through dma_buf_map_attachment and dma_buf_unmap_attachment. For example this will allow ION clients to skip cache maintenance, by using DMA_ATTR_SKIP_CPU_SYNC, for buffers which are clean and haven't been accesse