On Wed, Nov 25, 2015 at 06:36:34PM +0100, Neil Roberts wrote:
[snip]
>
> Sadly there is a second obstacle stopping window system buffers from
> using fast clears which as that they are always x-tiled and supposedly
> SKL doesn't support that. This is explicitly disabled in
> intel_tiling_support
Currently fast clears are disabled on SKL with SRGB buffers because
they are not marked as losslessly compressible in the formats table.
This is less than ideal because by default the window system buffers
are created as SRGB so in practice it means an application is unlikely
to end up using fast c
