From 801a67005d33cffbf7344f148b86756e5e10cdb0 Mon Sep 17 00:00:00 2001
From: Wei Wang <wvw@google.com>
Date: Mon, 8 Aug 2022 21:20:29 -0700
Subject: [PATCH] Tune GPU dvfs period during app launch

Instead of using hard-coded GPU freq, tune
DVFS period instead.

Test: Boot
Bug: 239887528
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I53415fb5c5390adace99b593495c6388b3232cd0
---
 powerhint-cheetah.json | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/powerhint-cheetah.json b/powerhint-cheetah.json
index 5a84ba8..646c108 100644
--- a/powerhint-cheetah.json
+++ b/powerhint-cheetah.json
@@ -123,6 +123,15 @@
       ],
       "ResetOnInit": true
     },
+    {
+      "Name": "GPUDvfsPeriod",
+      "Path": "/sys/devices/platform/28000000.mali/dvfs_period",
+      "Values": [
+        "10",
+        "20"
+      ],
+      "ResetOnInit": true
+    },
     {
       "Name": "UClampThreshold",
       "Path": "/proc/vendor_sched/uclamp_threshold",
@@ -549,9 +558,9 @@
     },
     {
       "PowerHint": "LAUNCH_GPU",
-      "Node": "GPUMinFreq",
+      "Node": "GPUDvfsPeriod",
       "Duration": 1000,
-      "Value": "848000"
+      "Value": "10"
     },
     {
       "PowerHint": "LAUNCH_120FPS",