On Wed, Nov 23, 2016 at 10:40:47AM -0800, Dan Williams wrote: > I don't think that was designed for the case where the backing memory > is a special/static physical address range rather than anonymous > "System RAM", right?
The hardware doesn't care where the memory is. ODP is just a generic mechanism to provide demand-fault behavior for a mirrored page table. ODP has the same issue as everything else, it needs to translate a page table entry into a DMA address, and we have no API to do that when the page table points to peer-peer memory. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
