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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2013-11-15 09:32:11 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-28 11:01:30 +0100 |
| commit | 2f0aa30425414f3105bc29dd39bfdb40cb684393 (patch) | |
| tree | 43e45dfcff655383849ca0554742d3e9ae83291d /drivers/gpu | |
| parent | 84fcb46977e57bafba40bde32067bacc1e510f9c (diff) | |
| download | op-kernel-dev-2f0aa30425414f3105bc29dd39bfdb40cb684393.zip op-kernel-dev-2f0aa30425414f3105bc29dd39bfdb40cb684393.tar.gz | |
drm/i915/vlv: use a lower RC6 timeout on VLV
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@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Deepak S <deepak.s@inel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 1659265..2d74ae8 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4110,7 +4110,7 @@ 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, |
