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(parent: e6feb4f) | 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)
commit031164e8c20966fdbf583fba6fb6763fae9f5e6f
tree0c331dcac92c8f6bc21744b849ea83faf6bfd35dtree | snapshot
parente6feb4f8ce85580bcc2bf4d2bd20fc0f3e48b66ccommit | 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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