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.
