On 19/11/16 05:18, Jérôme Glisse wrote: > It does not need much, just skip populating kernel linear mapping > for range of un-addressable device memory (it is pick so that there > is no physical memory resource overlapping it). All the logic is in > share mm code. > > Only support x86-64 as this feature doesn't make much sense with > constrained virtual address space of 32bits architecture. > Is there a reason this would not work on powerpc64 for example? Could you document the limitations -- testing/APIs/missing features? Balbir Singh. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>