[Mesa-dev] [PATCH 0/4] RadeonSI: Enable DCC for X mipmaps and other shared textures

[Marek Olšák]

On Mon, Jun 6, 2016 at 4:14 PM, Nicolai Hähnle <nhaehnle at gmail.com> wrote:
> On 03.06.2016 12:52, Marek Olšák wrote:
>>
>> We can save some bandwidth and power with this. It also enables fast clear
>> for some windowed apps on Stoney.
>>
>> If you update radeonsi_dri.so but not restart X while using DRI3, X won't
>> be able to display drawables correctly. (e.g. firefox will display garbage)
>
>
> I'm not happy about this kind of compatibility breakage. Being able to use
> different UMDs together is convenient, and what's with potential interop
> with amdgpu-pro, for example?

This is not an issue anymore since patch 4 was rejected. All users
(Glamor, DDX, Mesa DRI3 support) always set the scanout flag,
disabling DCC.

Marek