drm/i915: Increase the RC6p threshold.
authorStéphane Marchesin <marcheu@chromium.org>
Wed, 30 Jan 2013 03:41:59 +0000 (19:41 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 5 Mar 2013 09:02:00 +0000 (10:02 +0100)
This increases GEN6_RC6p_THRESHOLD from 100000 to 150000. For some
reason this avoids the gen6_gt_check_fifodbg.isra warnings and
associated GPU lockups, which makes my ivy bridge machine stable.

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c

index 61fee7f..a1794c6 100644 (file)
@@ -2574,7 +2574,7 @@ static void gen6_enable_rps(struct drm_device *dev)
        I915_WRITE(GEN6_RC_SLEEP, 0);
        I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
        I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
-       I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
+       I915_WRITE(GEN6_RC6p_THRESHOLD, 150000);
        I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
 
        /* Check if we are enabling RC6 */