vt(4) support on SPARC

[Nathan Whitehorn]

I haven't heard back from anyone. Since the changes to ofwfb are now in 
and the changes to the sparc64 kernel configuration don't affect default 
behavior, I will commit this at the end of the week so it can be tested 
more casually unless someone objects.
-Nathan

On 07/20/14 12:46, Nathan Whitehorn wrote:
> I'm hoping to collect test results for the patch at 
> http://people.freebsd.org/~nwhitehorn/vt-sparc64.diff
>
> It does the following things:
> 1. Adds vt to SPARC64 GENERIC as a run-time selectable feature. 
> syscons is still the default, but you can try vt by setting 
> kern.vty=vt at the boot loader.
> 2. Fix some bitrot in the sparc64 support in ofwfb, so that it 
> compiles again on SPARC.
> 3. Removes some of the PCI-focused aspects of ofwfb and adds some 
> other improvements to it (not all of them SPARC-related).
>
> This should work at least on all systems currently using machfb(4) and 
> provides a working graphics console on my Ultra 5. It likely doesn't 
> work on systems using creatorfb(4) -- I believe that will require a 
> different driver -- though I would very much appreciate test results 
> on such systems. It may also work on some systems that currently have 
> no working graphics console at all.
>
> So, if you have a SPARC system with video hardware, I would really 
> appreciate it if you could give this a try. If you don't set kern.vty 
> at the loader prompt, it should not change anything.
>
> If you try it on a non-Mach64 system and it provides a working 
> console, please let me know. If you try it and it does not work (no 
> matter what kind of graphics hardware), please also let me know and 
> tell me what kind of graphics card you have and send the output of 
> "ofwdump -p screen". Any other comments or test results would also be 
> appreciated.
> -Nathan
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