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Commit 3d29005a authored by Shiraz Hashim's avatar Shiraz Hashim Committed by Russell King
Browse files

ARM: 6541/1: move sev definition to common system.h include file 



sev is used to send wakeup event to other cores in ARMv6K and above.
This has been moved from platform specific part to standard common
ARM header file (asm/system.h). Also introduced wfi() and wfe().

Signed-off-by: default avatarShiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 67cfa23a

arch/arm/include/asm/system.h

+7 −0
Original line number Diff line number Diff line
@@ -119,6 +119,13 @@ extern unsigned int user_debug; 
#define vectors_high()	(0)

#endif



#if __LINUX_ARM_ARCH__ >= 7 ||		\

	(__LINUX_ARM_ARCH__ == 6 && defined(CONFIG_CPU_32v6K))

#define sev()	__asm__ __volatile__ ("sev" : : : "memory")

#define wfe()	__asm__ __volatile__ ("wfe" : : : "memory")

#define wfi()	__asm__ __volatile__ ("wfi" : : : "memory")

#endif



#if __LINUX_ARM_ARCH__ >= 7

#define isb() __asm__ __volatile__ ("isb" : : : "memory")

#define dsb() __asm__ __volatile__ ("dsb" : : : "memory")