Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

On Fri, Mar 11, 2016 at 5:46 AM, Robin Murphy wrote: > Hi Dan, > > > On 11/03/16 06:47, Dan Williams wrote: >> >> On Thu, Mar 10, 2016 at 8:05 AM, Niklas S??derlund >> wrote: >>> >>> Hi Christoph, >>> >>> On 2016-03-07 23:38:47 -0800,

Re: [PATCH 1/2] iommu/io-pgtable: Add MTK 4GB mode in Short-descriptor

On 02/03/16 12:31, Robin Murphy wrote: Hi Yong, On 23/02/16 23:02, Yong Wu wrote: Mediatek extend bit9 in the lvl1 and lvl2 pgtable descriptor of the Short-descriptor as the 4GB mode in which the dram size will be over 4GB. We add a special quirk for this MTK-4GB mode, And in the standard

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

Hi Dan, On 11/03/16 06:47, Dan Williams wrote: On Thu, Mar 10, 2016 at 8:05 AM, Niklas S??derlund wrote: Hi Christoph, On 2016-03-07 23:38:47 -0800, Christoph Hellwig wrote: Please add some documentation on where/how this should be used. It's not a very

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

Hi all, Thanks for your comments. On 2016-03-11 03:15:22 -0800, Christoph Hellwig wrote: > On Thu, Mar 10, 2016 at 10:47:10PM -0800, Dan Williams wrote: > > I think it is confusing to use the dma_ prefix for this peer-to-peer > > mmio functionality. dma_addr_t is a device's view of host memory.

Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

On Thu, Mar 10, 2016 at 10:47:10PM -0800, Dan Williams wrote: > I think it is confusing to use the dma_ prefix for this peer-to-peer > mmio functionality. dma_addr_t is a device's view of host memory. > Something like bus_addr_t bus_map_resource(). Doesn't this routine > also need the source