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(parent: 2c85717) | patch
drm/i915: Don't do MTRR setup if PAT is enabled
authorAdam Jackson <ajax@redhat.com>
Wed, 14 Mar 2012 15:22:11 +0000 (11:22 -0400)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Sun, 18 Mar 2012 17:48:10 +0000 (18:48 +0100)
commit3f91f18d2d166b89bac78df68e4863047966a85c
tree0c331dcac92c8f6bc21744b849ea83faf6bfd35dtree | snapshot
parent2c8571708ce01294b557f231223fd38551fbff45commit | diff
drm/i915: Don't do MTRR setup if PAT is enabled

Some newer BIOSes are shipping with all MTRRs already populated.  These
BIOSes are all on machines with sufficiently new CPUs that the
referenced errata doesn't apply anyway, so just don't try to claim the
MTRR.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41648
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_dma.c diff | blob | history
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