On 23 February 2016 at 23:56, Rob Clark <robdclark@xxxxxxxxx> wrote: > On Tue, Feb 23, 2016 at 6:29 PM, Emil Velikov <emil.l.velikov@xxxxxxxxx> wrote: >> Hi Zach, >> >> On 2 February 2016 at 23:37, Zach Reizner <zachr@xxxxxxxxxx> wrote: >>> The prime fd to handle ioctl was not used with rockchip before. Support >>> was added in order to support potential uses (e.g. zero-copy video >>> decode, camera). >>> >> Similar patch came around a few months ago and got this reply [1]. If >> the situation has changed (there is an open-source driver/user for >> this) it should be clearly mentioned in the commit message, as opposed >> to "in order to support potential uses". > > hmm, well it is not driver specific uabi, and we have let several > other mali/img users do prime.. > I'm suspecting that's because we missed the patches fly by, as opposed to people being particularly happy with the idea. If the "don't break userspace" kernel rule did not exist and a few more people to kept an eye open for these misuses [I believe is the correct word], things could easily be fixed/reverted ;-) If the majority feels like we can/should allow these - so be it. I'm just pointing/reminding what was said previously. > I'm not sure, maybe those platforms can do a basic v4l <-> display > thing w/ prime. Although upstream tends to hurt a bit for camera > support.. > It a bit unfortunate indeed. I wonder if companies cannot put more pressure on vendors to get things open/upstream - hint, hint ;-) Wanted: Dead or alive - [upstream] open-source users :-P Regards Emil _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
