From: Erik Wolsheimer <ewol@google.com>
Date: Wed, 28 Mar 2018 23:27:54 +0000 (-0700)
Subject: Make hwc_vsync thread realtime
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=748becfcb0cd284085f4cbedcdff30fe8332a5b3;p=GitHub%2FLineageOS%2Fandroid_hardware_samsung_slsi_exynos.git

Make hwc_vsync thread realtime

Bug: 68395248
Change-Id: I4ac93464aa2ccf416577b4067ed658b525089983
---

diff --git a/libhwc/ExynosHWC.cpp b/libhwc/ExynosHWC.cpp
index c6f1e50..02913a4 100644
--- a/libhwc/ExynosHWC.cpp
+++ b/libhwc/ExynosHWC.cpp
@@ -626,7 +626,11 @@ void *hwc_vsync_thread(void *data)
     char uevent_desc[4096];
     memset(uevent_desc, 0, sizeof(uevent_desc));
 
-    setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
+    struct sched_param sched_param = {0};
+    sched_param.sched_priority = 5;
+    if (sched_setscheduler(gettid(), SCHED_FIFO, &sched_param) != 0) {
+        ALOGE("Couldn't set SCHED_FIFO for hwc_vsync");
+    }
 
     uevent_init();