Re: [PATCH 1/3] drm/i915/skl: Allow universal planes to position

[sonika <sonika.jindal@intel.com>]

On Monday 09 March 2015 02:16 PM, Daniel Vetter wrote:
> On Mon, Mar 09, 2015 at 08:33:27AM +0530, sonika wrote:
>> On Thursday 05 March 2015 06:24 PM, Daniel Vetter wrote:
>>> On Thu, Mar 05, 2015 at 02:51:26PM +0530, Sonika Jindal wrote:
>>>> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
>>> Imo this needs a little more commit message, and more important it needs
>>> igt test coverage. Best approach there is probably to take the plane test
>>> we have already and extend it to the primary plane.
>>> -Daniel
>> This is just to take care of the case when the size of the fb is smaller
>> than the crtc.
>> I have extended the rotation test (yet to be posted), to create a smaller
>> primary plane fb to be used for 90/270 rotation.
>>
>> Since we still set position to 0 for primary plane, I did not add any test
>> case for positioning of primary plane.
>> That can be added as a separate activity when positioning support is added.
>> Right now this is just to allow smaller fb for primary plane which is
>> possible with universal planes gen >=9.
> Through universal planes it's already possible to position any plane
> anywhere, and this code is all that makes sure this doesn't happen for the
> primary plane. Since you've just changed that I think this needs a
> testcase in igt.
>
> Or maybe I missed something and it's indeed not yet possible to do this?
> -Daniel
Yes, it isn't possible yet. We set the position to 0 in 
skylake_update_primary_plane.
-Sonika

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