Re: [PATCH 02/12] drm/etnaviv: add devicetree bindings

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On Fri, Dec 4, 2015 at 3:31 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
> Moreover, DRI3 is not yet available for Gallium, so if we're talking
> about Xorg, then functional DRI2 is a requirement, and that _needs_
> to have a single device for the rendering instances.  Xorg has no way
> to pass multiple render nodes to client over DRI2.

Just to correct... DRI3 has been available on gallium [at least in the
context of st/mesa] basically since DRI3 was introduced. Not sure what
issue you're fighting with, but it's definitely not a gallium
limitation... could be something related to platform devices.

It is also possible to use DRI_PRIME=<udev idpath> to select which
device to use. Not sure whether that has been available since the
beginning or not.

That said e.g. st/vdpau still doesn't deal with DRI3 which is a bit
annoying. And your other points all still stand (buffer sharing =
pain, tiling = not figured out, etc).

  -ilia
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