On Fri, Mar 15, 2013 at 12:08:10PM -0700, Ben Widawsky wrote: > On Fri, Mar 15, 2013 at 12:04:11PM -0700, Ben Widawsky wrote: > > On Thu, Mar 07, 2013 at 11:38:24AM +0200, Ville Syrj?l? wrote: > > > On Wed, Mar 06, 2013 at 08:03:13PM -0300, Paulo Zanoni wrote: > > > > From: Paulo Zanoni <paulo.r.zanoni at intel.com> > > > > > > > > So don't read it when capturing the error state. This solves some > > > > "unclaimed register" messages on Haswell when we hang the GPU. > > > > > > You're sure about gen4? I haven't really checked but my impression is > > > that gen4 is more like gen3, and gen4.5 more like gen5 as far as the > > > display is concerned (eg. gen4 would have the old video overlay, and > > > 4.5 would have video sprites). Can anyone confirm? > > > > This register isn't anywhere in modern docs, what's up? > > Ooops, inverted the logic in my head. If you make the check for gen <=6 > which I can lazily check with modern docs: > Reviewed-by: Ben Widawsky <ben at bwidawsk.net> I've also checked vanilla gen4 docs and that offset is already marked as reserved, so we're good here. Queued for -next, thanks for the patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch