vt(4) support on SPARC

[Nathan Whitehorn]

This is now in the tree, along with a driver for Creator 3D framebuffers 
(thanks to dumbbell@!), so it should work anywhere syscons works. 
Testing would be appreciated. If anyone has a system with framebuffers 
currently unsupported by FreeBSD (XVR-500, for example), please let me 
know -- getting them online should be pretty simple.
-Nathan

On 07/29/14 18:16, Nathan Whitehorn wrote:
> 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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