From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/arm/include/asm/switch_to.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 arch/arm/include/asm/switch_to.h (limited to 'arch/arm/include/asm/switch_to.h') diff --git a/arch/arm/include/asm/switch_to.h b/arch/arm/include/asm/switch_to.h new file mode 100644 index 00000000..63ca408d --- /dev/null +++ b/arch/arm/include/asm/switch_to.h @@ -0,0 +1,25 @@ +#ifndef __ASM_ARM_SWITCH_TO_H +#define __ASM_ARM_SWITCH_TO_H + +#include + +/* + * switch_to(prev, next) should switch from task `prev' to `next' + * `prev' will never be the same as `next'. schedule() itself + * contains the memory barrier to tell GCC not to cache `current'. + */ +extern struct task_struct *__switch_to(struct task_struct *, struct thread_info *, struct thread_info *); +#if defined(CONFIG_SPRD_DEBUG_CPU_RATE) && defined(CONFIG_SPRD_DEBUG) +extern void update_cpu_usage(struct task_struct *prev, struct task_struct *next); +#define sprd_update_cpu_usage(prev, next) update_cpu_usage(prev, next) +#else +#define sprd_update_cpu_usage(prev, next) +#endif + +#define switch_to(prev,next,last) \ +do { \ + sprd_update_cpu_usage(prev, next); \ + last = __switch_to(prev,task_thread_info(prev), task_thread_info(next)); \ +} while (0) + +#endif /* __ASM_ARM_SWITCH_TO_H */ -- cgit v1.3.1