diff options
| author | David Howells <dhowells@redhat.com> | 2012-03-28 19:30:01 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2012-03-28 19:30:01 +0200 |
| commit | 9f97da78bf018206fb623cd351d454af2f105fe0 (patch) | |
| tree | 509971bf0d93f56d7ad182bdad3c89886f7ce675 /arch/arm/include/asm/switch_to.h | |
| parent | ARM: move CP15 definitions to separate header file (diff) | |
| download | linux-9f97da78bf018206fb623cd351d454af2f105fe0.tar.xz linux-9f97da78bf018206fb623cd351d454af2f105fe0.zip | |
Disintegrate asm/system.h for ARM
Disintegrate asm/system.h for ARM.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Russell King <linux@arm.linux.org.uk>
cc: linux-arm-kernel@lists.infradead.org
Diffstat (limited to 'arch/arm/include/asm/switch_to.h')
| -rw-r--r-- | arch/arm/include/asm/switch_to.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/include/asm/switch_to.h b/arch/arm/include/asm/switch_to.h new file mode 100644 index 000000000000..fa09e6b49bf1 --- /dev/null +++ b/arch/arm/include/asm/switch_to.h @@ -0,0 +1,18 @@ +#ifndef __ASM_ARM_SWITCH_TO_H +#define __ASM_ARM_SWITCH_TO_H + +#include <linux/thread_info.h> + +/* + * 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 *); + +#define switch_to(prev,next,last) \ +do { \ + last = __switch_to(prev,task_thread_info(prev), task_thread_info(next)); \ +} while (0) + +#endif /* __ASM_ARM_SWITCH_TO_H */ |