[Mesa-dev] [PATCH] [v3] i965/skl: skip fast clears for certain surface formats

[Ben Widawsky]

On Wed, Nov 18, 2015 at 12:15:40PM +0200, Pohjolainen, Topi wrote:
> On Tue, Nov 17, 2015 at 05:31:12PM -0800, Ben Widawsky wrote:
> > Some of the information originally in this commit message is now in the patch
> > before this.
> > 
> > SKL adds compressible render targets and as a result mutates some of the
> > programming for fast clears and resolves. There is a new internal surface type
> > called the CCS. The old AUX_MCS bit becomes AUX_CCS_D. "The Auxiliary surface is
> > a CCS (Color Control Surface) with compression disabled or an MCS with
> > compression enabled, depending on number of multisamples. MCS (Multisample
> 
> I find this wording (even though it looks to be directly from the spec
> somewhat misleading. I read it suggesting that AUX can be CCS only when
> compression is disabled. I like another wording in "Auxiliary Surfaces For
> Sampled Tiled Resource" better: "CCS is used to indicate that the color
> surface is losslessly compressed."
> 
> Anyway the patch itself:
> 
> Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
> 

Thanks Topi. I like this quote better as well.

[snip]

Ben Widawsky, Intel Open Source Technology Center