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.