Re: Xorg on Blade 150

[Michael <macallan%netbsd.org@localhost>]

Hello,

On Tue, 23 Aug 2016 09:21:23 +0200
Martin Husemann <martin%duskware.de@localhost> wrote:

> On Tue, Aug 23, 2016 at 02:00:37PM +1000, matthew green wrote:
> > it kind of sucks that we have to turn INSECURE on just for X,
> > maybe we can have a GENERIC_GRAPHICS that does?  i won't object
> > whatever you choose.
> 
> I'd prefer anything that gets it working w/o INSECURE again - but then I don't
> know how far we will get with that if we move forward with DRM/KMS.

We'd need better control on what can/can't be mapped through /dev/pci*.
We could also go back to going through /dev/tty[E|F|G|H|...] now that
they are actually being created. That would require a driver attaching
to each graphics device though. Problem with that - on most graphics
chips I've seen the DMA stuff we'd want to restrict isn't sufficiently
separated from, say, the drawing engine registers ( as in, on a
different page ).

On SBus that's easier - we already go through /dev/fb*, we've got
kernel drivers for nearly everything, and most supported cards don't
really do DMA.

have fun
Michael