linux/arch/arm/include/asm/bL_switcher.h
Nicolas Pitre 71ce1deeff ARM: bL_switcher: move to dedicated threads rather than workqueues
The workqueues are problematic as they may be contended.
They can't be scheduled with top priority either.  Also the optimization
in bL_switch_request() to skip the workqueue entirely when the target CPU
and the calling CPU were the same didn't allow for bL_switch_request() to
be called from atomic context, as might be the case for some cpufreq
drivers.

Let's move to dedicated kthreads instead.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
2013-07-30 09:02:14 -04:00

18 lines
458 B
C

/*
* arch/arm/include/asm/bL_switcher.h
*
* Created by: Nicolas Pitre, April 2012
* Copyright: (C) 2012-2013 Linaro Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef ASM_BL_SWITCHER_H
#define ASM_BL_SWITCHER_H
int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
#endif