On Tue, Feb 10, 2015 at 10:37:16PM +0000, Emil Velikov wrote: > On 02/02/15 00:14, Emil Velikov wrote: > > Hi all, > > > > As mentioned a couple of days ago at #dri-devel some(most) users of > > render nodes tend to rely on strict mapping between the primary and > > render node. I.e. something along the lines of > > > > fstat(render_fd, &sbuf); > > sprintf(primary_node, "/dev/dri/card%d", > > ((sbuf.st_rdev & 0x3f) | 0x80)); > > > > Currently the following are (ab)using the above code: > > - xf86-video-nouveau > > - xf86-video-intel > > - libva (vaapi) > > > > As reminded by David Herrman, this is not the correct solution - thus > > I've added a couple of helpers which walk through sysfs of the > > respecitive device and return the correct device name. > > > > I'm not 100% happy with the function names, so suggestions are greatly > > appreciated. Any other comments are also welcome :) > > > > Note: BSD guys - you'll likely need your own version of these functions. > > > David, Daniel > > Can you please take a look at these two patches. Would be great if we > can minimize the above assumptions before they get too wide spread. > > *BSD guys, > > Please take a look and/or forward this to the relevant people. I fear > that my *BSD knowledge is virtually none :\ > > Cheers, > Emil I can't speak for other projects but OpenBSD drm is currently based on Linux 3.8 with no render nodes or prime. There is no sysfs/udev etc so when/if render nodes work it will likely involve either a fixed mapping or ioctls. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
