AMD Sea Islands

[Forrest Gump]

I was wondering if you can please add a note to
https://wiki.freebsd.org/Graphics#Tested_hardware_matrix regarding AMD
Sea Islands (and probably AMD Volcanic Islands). Based on
http://article.gmane.org/gmane.os.freebsd.devel.x11/14159, I assume
that AMD Sea Islands depends on "Kernel: DRM kernel code: update to
Linux 3.8" (done) and on "Kernel: i915 kernel driver: update to Linux
3.8" (work in progress). The wiki doesn't reflect this.

I'm unable to startx because I assume my video card is not yet
supported in FreeBSD (the wiki linked above says Not Supported, and
"man radeon" doesn't list my HD card:
https://www.freebsd.org/cgi/man.cgi?query=radeon&apropos=0&sektion=4&manpath=X11R7.4&arch=default&format=html).

I'm using AMD Oland (Sea Islands) Radeon HD 8570 / R7 240 OEM on
FreeBSD 10.1-RC2.

If you need someone to help test the card, I can try, but I'll likely
need guidance.

Thanks!