From: Rob Clark <robdclark@xxxxxxxxxxxx> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> --- 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
