1 files changed, 47 insertions, 0 deletions

diff --git a/arch/xtensa/include/asm/tlb.h b/arch/xtensa/include/asm/tlb.h
new file mode 100644
index 00000000000..31c220faca0
--- /dev/null
+++ b/arch/xtensa/include/asm/tlb.h
@@ -0,0 +1,47 @@
+/*
+ * include/asm-xtensa/tlb.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_TLB_H
+#define _XTENSA_TLB_H
+
+#include <asm/cache.h>
+#include <asm/page.h>
+
+#if (DCACHE_WAY_SIZE <= PAGE_SIZE)
+
+/* Note, read http://lkml.org/lkml/2004/1/15/6 */
+
+# define tlb_start_vma(tlb,vma)                 do { } while (0)
+# define tlb_end_vma(tlb,vma)                   do { } while (0)
+
+#else
+
+# define tlb_start_vma(tlb, vma)                                              \
+        do {                                                                  \
+                if (!tlb->fullmm)                                             \
+                        flush_cache_range(vma, vma->vm_start, vma->vm_end);   \
+        } while(0)
+
+# define tlb_end_vma(tlb, vma)                                                \
+        do {                                                                  \
+                if (!tlb->fullmm)                                             \
+                        flush_tlb_range(vma, vma->vm_start, vma->vm_end);     \
+        } while(0)
+
+#endif
+
+#define __tlb_remove_tlb_entry(tlb,pte,addr)    do { } while (0)
+#define tlb_flush(tlb)                          flush_tlb_mm((tlb)->mm)
+
+#include <asm-generic/tlb.h>
+
+#define __pte_free_tlb(tlb, pte)                pte_free((tlb)->mm, pte)
+
+#endif  /* _XTENSA_TLB_H */