After latest kernel update from drm-intel-next branch I am stucked at software rasterizer.

[Mateusz Kaduk]

After X startup I get in kern.log this

X:4808 map pfn expected mapping type write-back for e1800000-e1e40000, got
write-combining
X:4808 freeing invalid memtype e1800000-e1e40000
glxinfo:5249 map pfn expected mapping type write-back for e1800000-e1be8000,
got write-combining
glxinfo:5249 freeing invalid memtype e1800000-e1be8000

and after running glxgears with 100% CPU usage I chceked OpenGL
and its
OpenGL renderer string: Software Rasterizer
also following errors apear in kern.log

glxgears:5561 map pfn expected mapping type write-back for
e1800000-e1be8000, got write-combining
glxgears:5561 freeing invalid memtype e1800000-e1be8000
glxinfo:5562 map pfn expected mapping type write-back for e1800000-e1be8000,
got write-combining
glxinfo:5562 freeing invalid memtype e1800000-e1be8000

My configuration is EXA and master, libdrm, xf86-intel, xserver, mesa along
with latest drm-intel-next branch.
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