Merge branch 'fix/misc' into for-linus

[pandora-kernel.git] / arch / sh / mm / tlb-sh4.c

diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c
index ccac77f..cfdf793 100644 (file)
--- a/arch/sh/mm/tlb-sh4.c
+++ b/arch/sh/mm/tlb-sh4.c
@@ -80,3 +80,31 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page)
        __raw_writel(data, addr);
        back_to_cached();
 }
+
+void local_flush_tlb_all(void)
+{
+       unsigned long flags, status;
+       int i;
+
+       /*
+        * Flush all the TLB.
+        */
+       local_irq_save(flags);
+       jump_to_uncached();
+
+       status = __raw_readl(MMUCR);
+       status = ((status & MMUCR_URB) >> MMUCR_URB_SHIFT);
+
+       if (status == 0)
+               status = MMUCR_URB_NENTRIES;
+
+       for (i = 0; i < status; i++)
+               __raw_writel(0x0, MMU_UTLB_ADDRESS_ARRAY | (i << 8));
+
+       for (i = 0; i < 4; i++)
+               __raw_writel(0x0, MMU_ITLB_ADDRESS_ARRAY | (i << 8));
+
+       back_to_cached();
+       ctrl_barrier();
+       local_irq_restore(flags);
+}