linux/drivers/gpu
Chris Wilson 1af8452f16 drm/i915: Revert workaround for disabling L3 cache aging on IVB
In commit e4e0c058a1
Author: Eugeni Dodonov <eugeni.dodonov@intel.com>
Date:   Wed Feb 8 12:53:50 2012 -0800

    drm/i915: gen7: Implement an L3 caching workaround.

the L3 cache aging was disabled. This was part of a shotgun response
to a number of GPU hang bugs, but there appears to be no documentation
to suggest that disabling the L3 cache age was ever required (to prevent
the GPU hangs).

Restoring the L3 cache age is a minor performance win of around 2%
on IVB:GT2. (Note that this value seems to be consistent across a number
of tests and so appears to be above the usual noise.)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-05 21:30:02 +01:00
..
drm drm/i915: Revert workaround for disabling L3 cache aging on IVB 2014-03-05 21:30:02 +01:00
host1x gpu: host1x: Remove unnecessary include 2014-01-14 14:39:45 +01:00
vga vgaarb: Fix VGA decodes changes 2013-09-03 19:17:59 +02:00
Makefile gpu: host1x: Add host1x driver 2013-04-22 12:32:40 +02:00