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Is it possible to benefit from DMA in r6p0 using DRM + GPU?

Markus Pfau

Hi,

I own an odroid XU3 wich runs currently with the newest mali driver (r6p0) on ubuntu 15.01 without X.

I spend the last days in trying to pass the drm buffer using gbm into the mali gpu, until now with no success.

Problem is, that I'm not able to set up a renderable surface, I tried several extensions (MESA_GBM for example) but they all fail.

Can you pls. provide me with the information if its possible or not?

If it should be possible - are there any resources / samples where to look or the key?

Thanks!

Markus

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  • 0 in reply to Markus Pfau

    Hi peak3d,

    After discussing with the driver team, this extension is currently not available for non-X11 windowing systems. It has only been tested and available if you are using X11.

    So in theory if you switch over to using X instead of fbdev, your code may work. I cannot say for certain at this point however so please let us know the results.

    Kind Regards,

    Michael McGeagh

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  • 0 in reply to Markus Pfau

    Hi peak3d,

    After discussing with the driver team, this extension is currently not available for non-X11 windowing systems. It has only been tested and available if you are using X11.

    So in theory if you switch over to using X instead of fbdev, your code may work. I cannot say for certain at this point however so please let us know the results.

    Kind Regards,

    Michael McGeagh

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