[Bug 62507] [snb] rc6 hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62507

--- Comment #8 from Jesse Barnes <jbarnes at virtuousgeek.org> ---
Two patches to try (reboot in between):

--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2570,7 +2570,7 @@ static void gen6_enable_rps(struct drm_device *dev)
        I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16 | 30);
        I915_WRITE(GEN6_RC6pp_WAKE_RATE_LIMIT, 30);
        I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000);
-       I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25);
+       I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 250);

        for_each_ring(ring, dev_priv, i)
                I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);


and

--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2575,7 +2575,6 @@ static void gen6_enable_rps(struct drm_device *dev)
        for_each_ring(ring, dev_priv, i)
                I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);

-       I915_WRITE(GEN6_RC_SLEEP, 0);
        I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
        I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
        I915_WRITE(GEN6_RC6p_THRESHOLD, 150000);

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130328/f78ae95f/attachment.html>