Re: [RESEND PATCH] drm/rockchip: import dma_buf to gem

[Mark yao]

On 2015å11æ17æ 00:25, Daniel Vetter wrote:
> On Tue, Nov 10, 2015 at 05:11:57PM +0800, Mark Yao wrote:
> > >We want to display a buffer allocated by other driver, need import
> > >the buffer to gem.
> Does this work with some open-source driver/userspace or is this for the
> proprietary stack only? A bit a grey area I guess, but if it's only for
> the proprietary stack I think it shouldn't land in upstream - making sure
> it works with open-source (e.g. Xorg prime) first would be good.
> -Daniel
Hi Daniel
    It works on open-source with following stack:
        ion -> dma_fd  -> prime fd to handle -> drm -> vop

    ion is the android ION memory allocator, its driver at 
upstream-kernel/drivers/staging/android/ion.

    We have some application use ion on android, and want to port to 
Xorg side.

Thanks

--
ïark Yao


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