Commit e118a1df authored Jan 06, 2011 by Catalin Marinas Committed by Tony Lindgren Jan 06, 2011

ARM: Do not enable SWP emulation if CPU_V6 && CPU_V7



This option uses LDREXB/STREXB to emulate SWPB but these instructions
are not supported on all the ARMv6 processors.

Reported-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Leif Lindholm <Leif.Lindholm@arm.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent 01539ba2

arch/arm/mm/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -644,7 +644,7 @@ config ARM_THUMBEE

		config SWP_EMULATE
		bool "Emulate SWP/SWPB instructions"
		depends on CPU_V7
		depends on CPU_V7 && !CPU_V6
		select HAVE_PROC_CPU if PROC_FS
		default y if SMP
		help