From: Michel Thierry <michel.thierry@intel.com>
Date: Wed, 8 Apr 2015 11:13:33 +0000 (+0100)
Subject: drm/i915/gen8: begin bitmap tracking
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~17^2~58^2~108
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33c8819f1b057b555c73886f69f9baabe72527e0;p=pandora-kernel.git

drm/i915/gen8: begin bitmap tracking

Like with gen6/7, we can enable bitmap tracking with all the
preallocations to make sure things actually don't blow up.

v2: Rebased to match changes from previous patches.
v3: Without teardown logic, rely on used_pdpes and used_pdes when
freeing page tables.
v4: Rebased after s/page_tables/page_table/.
v5: Rebased after page table generalizations.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v2+)
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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