From mboxrd@z Thu Jan 1 00:00:00 1970 From: johlstei@codeaurora.org (Jeff Ohlstein) Date: Fri, 23 Jul 2010 11:58:03 -0700 Subject: [PATCH 3/3] arm: macros for wfe, sev instructions In-Reply-To: <1279911483-7039-1-git-send-email-johlstei@codeaurora.org> References: <1279911483-7039-1-git-send-email-johlstei@codeaurora.org> Message-ID: <1279911483-7039-4-git-send-email-johlstei@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Steve Muckle 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 Signed-off-by: Jeff Ohlstein --- 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