MIPS R2 instruction hazard handling.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/include/asm-mips/hazards.h b/include/asm-mips/hazards.h
index 181f08de889c..f63d824e6e48 100644
--- a/include/asm-mips/hazards.h
+++ b/include/asm-mips/hazards.h
@@ -228,6 +228,22 @@ __asm__(
 
 #endif
 
+#if defined(CONFIG_CPU_MIPS32_R2) || defined (CONFIG_CPU_MIPS64_R2)
+#define instruction_hazard()                                            \
+do {                                                                    \
+__label__ __next;                                                       \
+        __asm__ __volatile__(                                           \
+        "       jr.hb   %0                                      \n"     \
+        :                                                               \
+        : "r" (&&__next));                                              \
+__next:                                                                 \
+        ;                                                               \
+} while (0)
+
+#else
+#define instruction_hazard() do { } while (0)
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_HAZARDS_H */