From: Rob Clark <robdcl...@chromium.org>
Signed-off-by: Rob Clark <robdcl...@chromium.org>
---
drivers/gpu/drm/msm/msm_gpu_devfreq.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/msm/msm_gpu_devfreq.c
b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
index e578d74d402f..1f31e72ca0cf 100644
--- a/drivers/gpu/drm/msm/msm_gpu_devfreq.c
+++ b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
@@ -145,6 +145,15 @@ void msm_devfreq_init(struct msm_gpu *gpu)
if (!gpu->funcs->gpu_busy)
return;
+ /*
+ * Setup default values for simple_ondemand governor tuning. We
+ * want to throttle up at 50% load for the double-buffer case,
+ * where due to stalling waiting for vblank we could get stuck
+ * at (for ex) 30fps at 50% utilization.
+ */
+ priv->gpu_devfreq_config.upthreshold = 50;
+ priv->gpu_devfreq_config.downdifferential = 10;
+
mutex_init(&df->lock);
dev_pm_qos_add_request(&gpu->pdev->dev, &df->boost_freq,
--
2.38.1
