On Thu, Nov 22, 2018 at 03:59:50PM +0200, Joonas Lahtinen wrote:
> Hi Jerome,
>
> Bit late reply, but here goes :)
>
> We're working quite hard to avoid pinning any pages unless they're in
> the GPU page tables. And when they are in the GPU page tables, they must
> be pinned for whole of that dur
Hi Jerome,
Bit late reply, but here goes :)
We're working quite hard to avoid pinning any pages unless they're in
the GPU page tables. And when they are in the GPU page tables, they must
be pinned for whole of that duration, for the reason that our GPUs can
not take a fault. And to avoid thrashin
From: Jérôme Glisse
This replace existing code that rely on get_user_page() aka GUP with
code that now use HMM mirror to mirror a range of virtual address as
a buffer object accessible by the GPU. There is no functional changes
from userspace point of view.
From kernel point of view we no longer
