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

[Tomasz Figa]

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.

Best regards,
Tomasz