From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Date: Tue, 09 Apr 2013 17:12:23 +0000 Subject: Re: Status of exporting an fbdev framebuffer with dma_buf? Message-Id: <1446369.MK0i6vhK4t@avalon> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Tom Cooksey Cc: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-fbdev@vger.kernel.org Hi Tom, On Tuesday 09 April 2013 12:21:08 Tom Cooksey wrote: > Hi All, > > Last year Laurent posted an RFC patch[i] to add support for exporting an > fbdev framebuffer through dma_buf. Looking through the mailing list > archives, it doesn't appear to have progressed beyond an RFC? What would be > needed to get this merged? It would be useful for our Mali T6xx driver > (which supports importing dma_buf buffers) to allow the GPU to draw > directly into the framebuffer on platforms which lack a DRM/KMS driver. The patch was pretty simple, I don't think it would take lots of efforts to get it to mainline. On the other hand, fbdev is a dying API, so I'm not sure how much energy we want to spend on upgrading it. I suppose all that would be needed is a developer with enough interest in the topic to fix the patch according to the comments. > [i] Subject: "[RFC/PATCH] fb: Add dma-buf support", sent 20/06/2012. -- Regards, Laurent Pinchart