[Freedreno] Whether A200 driver is supported by Linux Mainline Kernel

[abhijit naik]

Hi Ilia,

Thank you very much for your reply.

I am able to create msm_dri.so file with options you provided

Even after that, soft pipe is being used for rendering.

I am suspecting that glxinfo will use driver depending on _drv.so being 
detected by xinit

Now I have freedreno_drv.so too. But still soft pipe is being used. I am 
trying to solve this puzzle.

  Warm Regards,
         Abhijit

> On 10-Jul-2017, at 8:25 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
>
>> On Mon, Jul 10, 2017 at 10:53 AM, abhijit <abhijitnaik27 at gmail.com> wrote:
>> Hi Rob,
>>
>> Thank you very much for your reply.
>>
>> I ensured that --enable-freedreno-kgsl is enabled in libdrm build and the
>> same is copied to target
>>
>> The issue seems to be in mesa build
>>
>> I observed that there are two mechanism in which application can interact
>> with underlaying DRM,
>>    1. With DRI ($MESA_INSTALL_PATH/src/mesa/drivers/dri)
>>    2. With Gallium driver ($MESA_INSTALL_PATH/src/gallium/drivers)
>>
>> Freedreno driver is present only in Case 2. For that reason I disabled dri
>> in Mesa build and enabled gallium-xlib intreface, which will enable case 2
>
> You absolutely need --enable-dri. Gallium drivers are also DRI
> drivers. The "src/mesa/drivers/dri" drivers are "classic" drivers,
> while the others are "gallium" drivers. However they're all DRI
> drivers.
>
> You can build mesa --with-dri-drivers=""
> --with-gallium-drivers="freedreno", but you have to leave DRI(3)
> enabled.
>
>  -ilia