Request for review/testing: G5 support [COMMITTED]

[Nathan Whitehorn]

Nathan Whitehorn wrote:
> I'd like to merge the G5 support currently in Perforce soon, to ensure 
> some testing with it before the 8.0 code freeze. There are a few 
> remaining bugs/issues listed below, but I think fixing them will be 
> faster and easier once this is in the tree, and they are not serious 
> issues in general. A diff against -CURRENT can be found at 
> http://people.freebsd.org/~nwhitehorn/ppcg5.diff. If there is 
> sufficient interest, I can make a CD image with the patch applied.
>
> Notes:
> - For SMU-based systems (later model Powermac G5s, and all G5 iMacs), 
> there is currently no support for controlling the fans. Your machine 
> will be loud.
> - Adjusting the volume of the built-in audio on my G5 iMac does not 
> work -- it is stuck at maximum
> - PCI Express systems likely do not work.
> - SMP is currently tested only on an emulator, where it works fine -- 
> I'd appreciate any test reports
> - Serial consoles seem to be broken at the moment
> - If you set CPUTYPE=970 in make.conf, be *absolutely sure* to add 
> -mno-powerpc64 to CFLAGS, or you will get strange runtime errors.
>
> Everything else (built-in devices, X, etc.) should work. Please let me 
> know how it goes if you try the patch!

This was committed on April 3rd as revision 190681, and so is now 
available in 8.0-CURRENT and will be in the upcoming 8.0 release. For 
the in-tree G5 support, the note about using CPUTYPE no longer applies. 
Enjoy!
-Nathan