[PATCH] nouveau: add coherent BO attribute

Alexandre Courbot gnurou at gmail.com
Tue May 19 22:11:33 PDT 2015


On Fri, May 15, 2015 at 8:39 PM, Maarten Lankhorst
<maarten at mblankhorst.nl> wrote:
> Op 15-05-15 om 09:11 schreef Alexandre Courbot:
>> Re-pinging Marteen on an email address that still exists :P
>>
>> On Wed, Apr 22, 2015 at 6:08 PM, Alexandre Courbot <gnurou at gmail.com> wrote:
>>> On Sun, Mar 15, 2015 at 5:41 PM, Alexandre Courbot <acourbot at nvidia.com> wrote:
>>>> On 03/14/2015 04:33 AM, Maarten Lankhorst wrote:
>>>>> 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.
>>>>> ;-)
>>>>
>>>> Sounds good. I will ping you again once the kernel change reaches -next.
>>> Hi Marteen,
>>>
>>> The kernel change required for this patch is now in -next. Do you
>>> think we can merge it now?
> I think it would be ok to merge now.

Great - who could do this? :P


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