25 Mar
2021
25 Mar
'21
12:01 p.m.
On Thu, Mar 25, 2021 at 12:53:15PM +0100, Thomas Hellström (Intel) wrote:
Nope. The point here was that in this case, to make sure mmap uses the correct VA to give us a reasonable chance of alignement, the driver might need to be aware of and do trickery with the huge page-table-entry sizes anyway, although I think in most cases a standard helper for this can be supplied.
Of course the driver needs some way to influence the VA mmap uses, gernally it should align to the natural page size of the device
Jason