[PATCH 7/8] drm/i915: move sandybridge RC6 enable in resume after ring initialization

Zhenyu Wang
2011-03-21T09:27:25Z

Move RC6 enable after we reset rings for all regines, as RC6 on
Sandybridge would setup ring idle state, so I assume we should have
setup rings already.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 4 ++++
drivers/gpu/drm/i915/i915_suspend.c | 3 ---
2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a55b71d..b40f3ee 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -384,6 +384,10 @@ static int i915_drm_thaw(struct drm_device *dev)

if (IS_IRONLAKE_M(dev))
ironlake_enable_rc6(dev);
+
+ if (IS_GEN6(dev))
+ gen6_enable_rps(dev_priv);
+
}

intel_opregion_init(dev);
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 26387c3..8e6aa8c 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -862,9 +862,6 @@ int i915_restore_state(struct drm_device *dev)
intel_init_emon(dev);
}

- if (IS_GEN6(dev))
- gen6_enable_rps(dev_priv);
-
/* Memory arbitration state */
if (IS_GEN3(dev))
I915_WRITE (MI_ARB_STATE, dev_priv->saveMI_ARB_STATE | 0xffff0000);
--
1.7.4.1