drm/msm: Increase gpu boost interval

Currently, we boost gpu freq after 25ms of inactivity. This regresses
some of the 30 fps usecases where the workload on gpu (at 33ms internval)
is very small which it can finish at the lowest OPP before the deadline.
Lets increase this inactivity threshold to 50ms (same as the current
devfreq interval) to fix this.

Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/20211118154903.1.I2ed37cd8ad45a5a94d9de53330f973a62bd1fb29@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/msm_gpu_devfreq.c b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
index 384e90c4b2a7999bb1310e91d0253afd3f8558be..d232f74d234654ebca2b05e430b78e1e5ba7f9be 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gpu_devfreq.c
+++ b/drivers/gpu/drm/msm/msm_gpu_devfreq.c
@@ -183,7 +183,7 @@ void msm_devfreq_active(struct msm_gpu *gpu)
         * interval, then we won't meet the threshold of busyness for
         * the governor to ramp up the freq.. so give some boost
         */
-       if (idle_time > msm_devfreq_profile.polling_ms/2) {
+       if (idle_time > msm_devfreq_profile.polling_ms) {
                target_freq *= 2;
        }