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

From	Mark yao <mark.yao@rock-chips.com>
Newsgroups	linux.kernel
Subject	Re: [RESEND PATCH] drm/rockchip: import dma_buf to gem
Date	2015-11-17 09:10 +0100
Message-ID	<qvJuV-2p9-3@gated-at.bofh.it> (permalink)
References	<qtdfQ-39x-25@gated-at.bofh.it> <qvuPg-1bQ-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2015年11月17日 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

-- 
Ｍark Yao


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Re: [RESEND PATCH] drm/rockchip: import dma_buf to gem Daniel Vetter <daniel@ffwll.ch> - 2015-11-16 17:30 +0100
  Re: [RESEND PATCH] drm/rockchip: import dma_buf to gem Mark yao <mark.yao@rock-chips.com> - 2015-11-17 09:10 +0100

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