On Thu, 2018-05-31 at 10:19 +0100, Chris Wilson wrote:
> From: Jon Bloomfield <[email protected]>
> 
> We can set a bit inside the ppGTT PTE to indicate a page is read-only;
> writes from the GPU will be discarded. We can use this to protect pages
> and in particular support read-only userptr mappings (necessary for
> importing PROT_READ vma).
> 
> Signed-off-by: Jon Bloomfield <[email protected]>
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Cc: Matthew Auld <[email protected]>

Reviewed-by: Joonas Lahtinen <[email protected]>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Graphics Center
Intel Corporation
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