Patches looks fine. Reviewed-by: Deepak S <[email protected]<mailto:[email protected]>>
From: Jesse Barnes <[email protected]<mailto:[email protected]>> Date: Fri, Nov 15, 2013 at 11:02 PM Subject: [Intel-gfx] [PATCH 1/2] drm/i915/vlv: use a lower RC6 timeout on VLV To: [email protected]<mailto:[email protected]> 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" <[email protected]<mailto:[email protected]>> Signed-off-by: Jesse Barnes <[email protected]<mailto:[email protected]>> --- 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 [email protected]<mailto:[email protected]> http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Deepak S
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