[PATCH 3/3] arm: macros for wfe, sev instructions
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From: Jeff Ohlstein on 23 Jul 2010 15:00 From: Steve Muckle <smuckle(a)codeaurora.org> 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(a)codeaurora.org> Signed-off-by: Jeff Ohlstein <johlstei(a)codeaurora.org> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |