[Mesa-dev] [PATCH 00/13] implement EGL_EXT_image_dma_buf_import_modifiers

[Emil Velikov]

[Pardon for dropping in uninvited]

On 15 November 2016 at 18:04, Marek Olšák <maraeo at gmail.com> wrote:

> Immutable metadata (modifiers) stored in the kernel is the only
> scalable (and thus usable) solution here. There was an argument
> against _mutable_ metadata attached to BOs and the synchronization
> hell it can cause, but I've not seen any argument against _immutable_
> metadata. Trying to push the metadata (modifiers) through window
> system protocols seems like a horrible idea to me, not just because of
> that fact that window system protocols shouldn't care about
> driver-specific stuff, but also because of the immense burden once you
> realize that you have to fix all window system protocols and KMS apps
> because 64 bits of metadata is not enough to support your hardware.
> It's clearly not economically sustainable.
>
Wasn't this one of the things that were [supposed to be] discussed at
XDC as part of the gbm2/liballoc ?
Not too sure on the topic, so a simple yes/no would be appreciated.

-Emil