From: Steve Muckle <smuckle@xxxxxxxxxxxxxx>
The wait for event and send event instructions may be called from C code
such as boot or power management routines.
Signed-off-by: Steve Muckle <smuckle@xxxxxxxxxxxxxx>
Signed-off-by: Jeff Ohlstein <johlstei@xxxxxxxxxxxxxx>
---
arch/arm/include/asm/processor.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 7bed3da..4262664 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -97,6 +97,11 @@ unsigned long get_wchan(struct task_struct *p);
#define cpu_relax() barrier()
#endif
+#if defined(CONFIG_CPU_32v6K) || __LINUX_ARM_ARCH__ >= 7
+#define sev() __asm__("sev")
+#define wfe() __asm__("wfe")
+#endif
+
/*
* Create a new kernel thread
*/
--
1.7.1.1
--
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