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Re: Porting DRM/GEM from OpenBSD
On Tue, Feb 08, 2011 at 03:36:31AM +0100, Grégoire Sutre wrote:
> I could make the Intel Xorg driver run on a Core i5 laptop, by
> porting OpenBSD's DRM/GEM driver to NetBSD. The integrated panel
> on this laptop is on an embedded display port (eDP), so I also
> backported the Intel (e)DP driver from Linux to Xorg. The sources,
> along with a README giving more details, are at:
> and some pre-built binaries are available at:
> I did not include display-port support by default in these
> pre-built archives, to limit the number of bugs I introduced. ;-)
> (Well, the amd64 archive has it, but it's hidden.)
> The port is currently limited to Intel chipsets. I tested it
> (a bit) on Ironlake (Core i5) and (a lot) on i915. If you give
> it a try, I'd be happy to hear about it.
> Warning: You may get gpu hangs that seem to be related to
> timings (see https://github.com/gsutre/netbsd-drmgem/issues).
> Returning to the console should still be possible, though.
> As a workaround, enabling DebugWait in xorg.conf makes these
> gpu hangs disappear for me.
> There is still a lot of room for improvement (volunteers?),
> but I hope that this is a step in the right direction to get
> DRM/GEM(/KMS) support in NetBSD.
Has OpenBSD done any work towards TTM support in radeondrm(4) yet?
Or do we get to write that if we're fast enough?
Oh and a side note, using git to make a patch seems to create a patch
that removes pmap.c.
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