Commit 7907f45b authored Feb 19, 2014 by Ben Widawsky Committed by Daniel Vetter Mar 05, 2014

Revert "drm/i915/bdw: Limit GTT to 2GB"



This reverts commit 3a2ffb65.

Now that the code is fixed to use smaller allocations, it should be safe
to let the full GGTT be used on BDW.

The testcase for this is anything which uses more than half of the GTT,
thus eclipsing the old limit.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 7ad47cf2

drivers/gpu/drm/i915/i915_gem_gtt.c

+0 −5

Original line number	Original line	Diff line number	Diff line
	@@ -1725,11 +1725,6 @@ static inline unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl)
	bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK;		bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK;
	if (bdw_gmch_ctl)		if (bdw_gmch_ctl)
	bdw_gmch_ctl = 1 << bdw_gmch_ctl;		bdw_gmch_ctl = 1 << bdw_gmch_ctl;
	if (bdw_gmch_ctl > 4) {
	WARN_ON(!i915.preliminary_hw_support);
	return 4<<20;
	}

	return bdw_gmch_ctl << 20;		return bdw_gmch_ctl << 20;
	}		}