[PATCH] nouveau: add coherent BO attribute

Maarten Lankhorst maarten.lankhorst at canonical.com
Fri Mar 13 12:33:45 PDT 2015


Hey,

Op 13-03-15 om 07:27 schreef Alexandre Courbot:
> Add a flag allowing Nouveau to specify that an object should be coherent
> at allocation time. This is required for some class of objects like
> fences which are randomly-accessed by both the CPU and GPU. This flag
> instructs the kernel driver to make sure the object remains coherent
> even on architectures for which coherency is not guaranteed by the bus.
> 
> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com>
I don't see a problem with this patch, but similar patches to intel to libdrm have been shot down when the changes weren't in an official kernel yet, so I think this should wait until the change is at least in drm-next. ;-)


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