1 files changed, 16 insertions, 0 deletions

diff --git a/arch/sh/mm/tlbflush_32.c b/arch/sh/mm/tlbflush_32.c
index 3fbe03ce8fe..a6a20d6de4c 100644
--- a/arch/sh/mm/tlbflush_32.c
+++ b/arch/sh/mm/tlbflush_32.c
@@ -119,3 +119,19 @@ void local_flush_tlb_mm(struct mm_struct *mm)
                 local_irq_restore(flags);
         }
 }
+
+void __flush_tlb_global(void)
+{
+        unsigned long flags;
+
+        local_irq_save(flags);
+
+        /*
+         * This is the most destructive of the TLB flushing options,
+         * and will tear down all of the UTLB/ITLB mappings, including
+         * wired entries.
+         */
+        __raw_writel(__raw_readl(MMUCR) | MMUCR_TI, MMUCR);
+
+        local_irq_restore(flags);
+}