Hi Rob, On 4 December 2015 at 17:49, Rob Herring <robh@xxxxxxxxxx> wrote: > I'm working on getting Android working with DRM drivers. ATM, I'm > using virtio-gpu as the driver and trying to get just KMS side working > without rendering. I have it working with stock AOSP and the emulated > fb with a few additions to the virtio-gpu driver[1]. Now I'm trying to > get things working with native KMS using drm_gralloc and > drm_hwcomposer (now in AOSP). I've hit one problem though which I'm > not sure how to solve without hacking around it. > > Is prime allowed on dumb BOs? AIUI, dumb buffer allocation is not > allowed on render nodes and drmPrimeHandleToFD is not allowed on > card0, so I'm stuck. I could open both nodes, but then I want the case > of no render node to work. After some searching, I thought it was a > matter of needing to do drmAuthMagic, but then found that is > considered obsolete[2]. drmPrimeHandleToFD definitely is allowed on card0; does the driver set the DRIVER_PRIME cap, and have a prime_handle_to_fd hook? Cheers, Daniel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
