From: johlstei@codeaurora.org (Jeff Ohlstein)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] arm: macros for wfe, sev instructions
Date: Fri, 23 Jul 2010 11:58:03 -0700 [thread overview]
Message-ID: <1279911483-7039-4-git-send-email-johlstei@codeaurora.org> (raw)
In-Reply-To: <1279911483-7039-1-git-send-email-johlstei@codeaurora.org>
From: Steve Muckle <smuckle@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@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@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
prev parent reply other threads:[~2010-07-23 18:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-23 18:58 [PATCH 0/3] ARM changes for ScorpionMP support Jeff Ohlstein
2010-07-23 18:58 ` [PATCH 1/3] arm: Kconfig option for ARCH_MSM_SCORPIONMP Jeff Ohlstein
2010-07-23 18:58 ` [PATCH 2/3] arm: mm: do not set missing flags on ScorpionMP Jeff Ohlstein
2010-07-24 8:23 ` Russell King - ARM Linux
2010-07-28 21:58 ` Daniel Walker
2010-07-28 22:36 ` Russell King - ARM Linux
2010-07-28 22:51 ` Daniel Walker
2010-07-29 7:18 ` Russell King - ARM Linux
2010-07-29 22:42 ` Daniel Walker
2010-07-30 7:19 ` Russell King - ARM Linux
2010-07-30 17:09 ` Daniel Walker
2010-07-30 20:20 ` Russell King - ARM Linux
2010-07-30 20:46 ` Daniel Walker
2010-07-23 18:58 ` Jeff Ohlstein [this message]
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