[Linaro-mm-sig] Re: Safety of opening up /dev/dma_heap/* to physically present users (udev uaccess tag) ?

On Tuesday, May 14th, 2024 at 22:42, Laurent Pinchart laurent.pinchart@ideasonboard.com wrote:

My experience on Arm platforms is that the KMS drivers offer allocation for scanout buffers, not render buffers, and mostly using the dumb allocator API. If the KMS device can scan out YUV natively, YUV buffer allocation should be supported. Am I missing something here ?

Note that dumb buffers are only intended for simple software-rendering use-cases. Anything more complicated (e.g. involving GPU rendering) should use another mechanism.