The last patch contains the bulk of the work where we change how we
convert between device private pages to device private offsets and then
use a new interface for allocating device private pages without the need
for reserving physical address space.
By removing the device private pages from the physical address space,
this series also opens up the possibility to moving away from tracking
device private memory using struct pages in the future. This is
desirable as on systems with large amounts of memory these device
private struct pages use a signifiant amount of memory and take a
significant amount of time to initialize.
I plan to take a look at some things in here soon; still catching up on
my overflowing inbox.
--
Cheers,
David
