Messages in this thread | | | Subject | Re: [Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1 | From | Benjamin Herrenschmidt <> | Date | Fri, 29 Apr 2011 10:29:22 +1000 |
| |
On Thu, 2011-04-28 at 15:37 -0400, Jerome Glisse wrote: > Jesse also pointed out space exhaustion inside the iommu and i believe > this should also be considered. This is why i believe the dma_* api is > not well suited. In DRM/TTM we use pci_dma_mapping* and we also play > with with page set_page*_uc|wc|wb.
Which are yet another set of completely x86-centric APIs that have not been thought in the context of other architectures and are probably mostly unimplementables on half of them :-)
Cheers, Ben.
| |