Commit 0c0790a2 authored Dec 16, 2014 by Shiju Mathew

msm: thermal: Add RT priority to kernel hotplug thread



Add RT priority to KTM hotplug mitigation thread. This
is required since we have seen cases where the thread
is not scheduled fast enough during high temperature rampup
that lead to thermal runaway. So this change would make sure
the thermal hotplug mitigation thread gets high priority
and mitigate core as soon as a temperature threshold is triggered.

Change-Id: I72ecf69ede0444fe74fd9c4eaf40a12e8734326c
Signed-off-by: Shiju Mathew <shijum@codeaurora.org>

parent 247909f4

drivers/thermal/msm_thermal.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2120,12 +2120,14 @@ static __ref int do_hotplug(void *data)
		{
		int ret = 0;
		uint32_t cpu = 0, mask = 0;
		struct sched_param param = {.sched_priority = MAX_RT_PRIO-2};

		if (!core_control_enabled) {
		pr_debug("Core control disabled\n");
		return -EINVAL;
		}

		sched_setscheduler(current, SCHED_FIFO, &param);
		while (!kthread_should_stop()) {
		while (wait_for_completion_interruptible(
		&hotplug_notify_complete) != 0)