1 files changed, 15 insertions, 0 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0d14f51d0002..a84c24d894aa 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1403,6 +1403,21 @@ config LOONGSON3_ENHANCEMENT
           please say 'N' here. If you want a high-performance kernel to run on
           new Loongson 3 machines only, please say 'Y' here.
 
+config CPU_LOONGSON3_WORKAROUNDS
+        bool "Old Loongson 3 LLSC Workarounds"
+        default y if SMP
+        depends on CPU_LOONGSON3
+        help
+          Loongson 3 processors have the llsc issues which require workarounds.
+          Without workarounds the system may hang unexpectedly.
+
+          Newer Loongson 3 will fix these issues and no workarounds are needed.
+          The workarounds have no significant side effect on them but may
+          decrease the performance of the system so this option should be
+          disabled unless the kernel is intended to be run on old systems.
+
+          If unsure, please say Y.
+
 config CPU_LOONGSON2E
         bool "Loongson 2E"
         depends on SYS_HAS_CPU_LOONGSON2E