Re: [PATCH 08/12] drm/i915: Add CCS capability for sprites

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Hi,

On 11 December 2017 at 12:08, Mika Kahola <mika.kahola@xxxxxxxxx> wrote:
> On Mon, 2017-12-11 at 12:00 +0000, Daniel Stone wrote:
>> Did you manage to test this? When I tried, the DDB/watermark
>> allocation was too conservative for sprites, and never allowed enough
>> blocks to be able to use anything but linear or X-tiled on sprite
>> planes. The allocation was almost entirely taken up by the primary
>> plane, even if that itself was later set to linear or X-tiled.
>
> I tried to test this but unfortunately this didn't apply on top of drm-
> tip. The whole series dates back to August so a lot have changed since
> then.
>
> I would need this patch for my CNL work so I would like to see this
> merged.

I would like to see this merged, but I would also like to see it ever
working first. :) When I tried it at the time, even a 256x256 plane
could not use Y-tiling or CCS, due to DDB exhaustion.

Cheers,
Daniel
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