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-rw-r--r--arch/arc/include/asm/tlb.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/arc/include/asm/tlb.h b/arch/arc/include/asm/tlb.h
index 3eb2ce0..fe91719 100644
--- a/arch/arc/include/asm/tlb.h
+++ b/arch/arc/include/asm/tlb.h
@@ -21,20 +21,28 @@
#ifndef __ASSEMBLY__
-#define tlb_flush(tlb) local_flush_tlb_mm((tlb)->mm)
+#define tlb_flush(tlb) \
+do { \
+ if (tlb->fullmm) \
+ flush_tlb_mm((tlb)->mm); \
+} while (0)
/*
* This pair is called at time of munmap/exit to flush cache and TLB entries
* for mappings being torn down.
* 1) cache-flush part -implemented via tlb_start_vma( ) can be NOP (for now)
* as we don't support aliasing configs in our VIPT D$.
- * 2) tlb-flush part - implemted via tlb_end_vma( ) can be NOP as well-
- * albiet for difft reasons - its better handled by moving to new ASID
+ * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range
*
* Note, read http://lkml.org/lkml/2004/1/15/6
*/
#define tlb_start_vma(tlb, vma)
-#define tlb_end_vma(tlb, vma)
+
+#define tlb_end_vma(tlb, vma) \
+do { \
+ if (!tlb->fullmm) \
+ flush_tlb_range(vma, vma->vm_start, vma->vm_end); \
+} while (0)
#define __tlb_remove_tlb_entry(tlb, ptep, address)