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authorCatalin Marinas <catalin.marinas@arm.com>2011-01-06 19:57:53 -0800
committerTony Lindgren <tony@atomide.com>2011-01-06 19:57:53 -0800
commite118a1df32c41186f717bbe6b42142741530e8b9 (patch)
tree0fab9974fe5102ed872a1b40016e7394e47a490a /arch
parent01539ba2a706ab7d35fc0667dff919ade7f87d63 (diff)
downloadtalos-op-linux-e118a1df32c41186f717bbe6b42142741530e8b9.tar.gz
talos-op-linux-e118a1df32c41186f717bbe6b42142741530e8b9.zip
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mm/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 49db8b3e4a49..0fe2389febf3 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -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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