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-rw-r--r--arch/sparc/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index bd992c0048f0..fbcc00c6c06e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -178,6 +178,13 @@ config ARCH_HAS_ILOG2_U64
178 bool 178 bool
179 default n 179 default n
180 180
181config EMULATED_CMPXCHG
182 bool
183 default y
184 help
185 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
186 is emulated, and therefore it is not completely atomic.
187
181config SUN_PM 188config SUN_PM
182 bool 189 bool
183 default y 190 default y