Patches looks fine.
Reviewed-by: Deepak S <deepak.s@xxxxxxxx>
From: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Date: Fri, Nov 15, 2013 at 11:02 PM
Subject: [PATCH 1/2] drm/i915/vlv: use a lower RC6 timeout on VLV
To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
We use timeout mode, and we need to lower the timeout to get good RC6
residency when loads are running. This gets me from 0% residency during
glxgears to 77%, which is a pretty good improvement. This value also
matches the current BWG recommentations.
Tested-by: "Meng, Mengmeng" <mengmeng.meng@xxxxxxxxx>
Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 172efa0..5d3912a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4102,7 +4102,7 @@ static void valleyview_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_RC6_THRESHOLD, 0xc350);
+ I915_WRITE(GEN6_RC6_THRESHOLD, 0x557);
/* allows RC6 residency counter to work */
I915_WRITE(VLV_COUNTER_CONTROL,
--
1.8.4.2
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Deepak S
|
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
