Patches and questions regarding this software should be directed at the amd-gfx mailing list:
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Driver/Radeon
The master development code repository can be found at:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati
For patch submission instructions, see:
https://www.x.org/wiki/Development/Documentation/SubmittingPatches