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Commit e42aae95 authored by Olav Haugan's avatar Olav Haugan
Browse files

sched/core_ctl: Integrate core control with cpu isolation 



Replace hotplug functionality in core control with cpu isolation
and integrate into scheduler.

Change-Id: I4f1514ba5bac2e259a1105fcafb31d6a92ddd249
Signed-off-by: default avatarOlav Haugan <ohaugan@codeaurora.org>
parent e7c8de67

kernel/sched/core.c

+3 −0
Original line number Diff line number Diff line
@@ -85,6 +85,7 @@ 
#endif



#include "sched.h"

#include "core_ctl.h"

#include "../workqueue_internal.h"

#include "../smpboot.h"
@@ -3090,6 +3091,8 @@ void scheduler_tick(void) 


	if (curr->sched_class == &fair_sched_class)

		check_for_migration(rq, curr);



	core_ctl_check(wallclock);

}



#ifdef CONFIG_NO_HZ_FULL

kernel/sched/core_ctl.c

+248 −234

File changed.

Preview size limit exceeded, changes collapsed.

kernel/sched/core_ctl.h

0 → 100644
+24 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#ifndef __CORE_CTL_H

#define __CORE_CTL_H



#ifdef CONFIG_SCHED_CORE_CTL

void core_ctl_check(u64 wallclock);

void core_ctl_set_boost(bool boost);

#else

static inline void core_ctl_check(u64 wallclock) {}

static inline void core_ctl_set_boost(bool boost) {}

#endif

#endif

kernel/sched/hmp.c

+3 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <linux/syscore_ops.h>



#include "sched.h"

#include "core_ctl.h"



#include <trace/events/sched.h>
@@ -1090,6 +1091,8 @@ int sched_set_boost(int enable) 
	if (!old_refcount && boost_refcount)

		boost_kick_cpus();



	if (boost_refcount <= 1)

		core_ctl_set_boost(boost_refcount == 1);

	trace_sched_set_boost(boost_refcount);

	spin_unlock_irqrestore(&boost_lock, flags);