From 6dc5848899a7ddbf1d02f104a97dde7ba0200693 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 25 Jun 2013 21:38:10 +0300 Subject: [PATCH] drm/i915: Don't increase the GPU frequency from the delayed VLV rps timer MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit There's little point in increasing the GPU frequency from the delayed rps work on VLV. Now when the GPU is idle, the GPU frequency actually keeps dropping gradually until it hits the minimum, whereas previously it just ping-ponged constantly between RPe and RPe-1. Signed-off-by: Ville Syrjälä Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index ed929667c5ba..ccbdd83f5220 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3461,7 +3461,8 @@ static void vlv_rps_timer_work(struct work_struct *work) * min freq available. */ mutex_lock(&dev_priv->rps.hw_lock); - valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay); + if (dev_priv->rps.cur_delay > dev_priv->rps.rpe_delay) + valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay); mutex_unlock(&dev_priv->rps.hw_lock); } -- 2.34.1