[Mesa-dev] [PATCH v1 0/7] Implement commont gralloc_handle_t in libdrm

[Emil Velikov]

Hi guys,

On 22 March 2018 at 08:23, Tomasz Figa <tfiga at chromium.org> wrote:
> Hi Chih-Wei,
>
> On Thu, Feb 22, 2018 at 2:53 PM, Chih-Wei Huang <cwhuang at linux.org.tw> wrote:
>> 2018-02-21 3:03 GMT+08:00 Rob Herring <robh at kernel.org>:
>>>
>>> Perhaps worth revisiting. Given we've failed to progress at all since
>>> then may change opinions some. We already have to handle multiple
>>> opens share the same pipe_screen, so I don't think reusing the fd buys
>>> us anything.
>>>
>>> Maybe we're close to the point of removing the flink name support too.
>>> The android-x86 folks have been working to get dma-bufs working.
>>> Chih-Wei, any comments on this?
>>
>> Ah! Sorry. I didn't catch or understand the details.
>> Did you mean the attempts to use drm_hwcomposer
>> in android-x86?
>> My understanding so far is most x86 GPUs won't work
>> except some very limited models.
>> It's due to kernel driver issues which may never be solved.
>> So we can't drop the flink name support.
>> Please correct me if I am wrong.
>
> Could you elaborate a bit more on those GPUs that won't work and
> corresponding driver issues? We're running cros_gralloc on Intel and
> AMD GPUs, with DMA-buf and render-node only setup and we haven't seen
> any problems.
>
May I suggest an alternative to, diving into details of the issues
observed by the Android-x86 team.

Namely: Tomasz, please send a patch ripping all the flink stuff, thus
Chih-Wei and others can test it.

Ideally it'll be a quick and easy "works for me" ;-)

HTH
Emil