drm/i915: Fix gen3 self-refresh watermarks
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 20 Nov 2013 14:02:10 +0000 (15:02 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 20 Nov 2013 14:52:52 +0000 (15:52 +0100)
commitf727b490efd0941a8d720fd07012dcb7f0740f77
tree5347d265810b7e31377cfc5ceed1a5ad7513431f
parent1021442098ee9328fdd4d113d63a3a7f2f40c37b
drm/i915: Fix gen3 self-refresh watermarks

This regression has been introduced in

commit 4fe8590a921d0b2e36e542dbfa89a8c5993f5a3f
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Sep 4 18:25:22 2013 +0300

    drm/i915: Use adjusted_mode appropriately when computing watermarks

I guess we should renable the enabled local variable into something a
notch more descriptive, but that's something for -next.

The effect on my i945gme netbook is pretty severe amounts of underruns
- usually the very first pixel gets used for the entire screeen.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c