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

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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>
This commit is contained in:
Catalin Marinas 2011-01-06 19:57:53 -08:00 committed by Tony Lindgren
parent 01539ba2a7
commit e118a1df32
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mm/Kconfig
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@ -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
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