From 9a0f78f63bc05d195aab781486ed57d1418d5f59 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 4 Nov 2005 10:20:27 +1100
Subject: [PATCH] powerpc: merge tlb.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 include/{asm-ppc => asm-powerpc}/tlb.h | 59 ++++++++++++++++----------
 include/asm-ppc64/tlb.h                | 39 -----------------
 2 files changed, 36 insertions(+), 62 deletions(-)
 rename include/{asm-ppc => asm-powerpc}/tlb.h (68%)
 delete mode 100644 include/asm-ppc64/tlb.h

diff --git a/include/asm-ppc/tlb.h b/include/asm-powerpc/tlb.h
similarity index 68%
rename from include/asm-ppc/tlb.h
rename to include/asm-powerpc/tlb.h
index 2c142c5d85..56659f1217 100644
--- a/include/asm-ppc/tlb.h
+++ b/include/asm-powerpc/tlb.h
@@ -1,6 +1,7 @@
 /*
- *	TLB shootdown specifics for PPC
+ *	TLB shootdown specifics for powerpc
  *
+ * Copyright (C) 2002 Anton Blanchard, IBM Corp.
  * Copyright (C) 2002 Paul Mackerras, IBM Corp.
  *
  * This program is free software; you can redistribute it and/or
@@ -8,29 +9,53 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
-#ifndef _PPC_TLB_H
-#define _PPC_TLB_H
+#ifndef _ASM_POWERPC_TLB_H
+#define _ASM_POWERPC_TLB_H
 
 #include <linux/config.h>
+#ifndef __powerpc64__
 #include <asm/pgtable.h>
+#endif
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
+#ifndef __powerpc64__
 #include <asm/page.h>
 #include <asm/mmu.h>
-
-#ifdef CONFIG_PPC_STD_MMU
-/* Classic PPC with hash-table based MMU... */
+#endif
 
 struct mmu_gather;
+
+#define tlb_start_vma(tlb, vma)	do { } while (0)
+#define tlb_end_vma(tlb, vma)	do { } while (0)
+
+#if !defined(CONFIG_PPC_STD_MMU)
+
+#define tlb_flush(tlb)			flush_tlb_mm((tlb)->mm)
+
+#elif defined(__powerpc64__)
+
+extern void pte_free_finish(void);
+
+static inline void tlb_flush(struct mmu_gather *tlb)
+{
+	flush_tlb_pending();
+	pte_free_finish();
+}
+
+#else
+
 extern void tlb_flush(struct mmu_gather *tlb);
 
+#endif
+
 /* Get the generic bits... */
 #include <asm-generic/tlb.h>
 
-/* Nothing needed here in fact... */
-#define tlb_start_vma(tlb, vma)	do { } while (0)
-#define tlb_end_vma(tlb, vma)	do { } while (0)
+#if !defined(CONFIG_PPC_STD_MMU) || defined(__powerpc64__)
+
+#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
 
+#else
 extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
 			     unsigned long address);
 
@@ -41,17 +66,5 @@ static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
 		flush_hash_entry(tlb->mm, ptep, address);
 }
 
-#else
-/* Embedded PPC with software-loaded TLB, very simple... */
-
-#define tlb_start_vma(tlb, vma)		do { } while (0)
-#define tlb_end_vma(tlb, vma)		do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
-#define tlb_flush(tlb)			flush_tlb_mm((tlb)->mm)
-
-/* Get the generic bits... */
-#include <asm-generic/tlb.h>
-
-#endif /* CONFIG_PPC_STD_MMU */
-
-#endif /* __PPC_TLB_H */
+#endif
+#endif /* __ASM_POWERPC_TLB_H */
diff --git a/include/asm-ppc64/tlb.h b/include/asm-ppc64/tlb.h
deleted file mode 100644
index 97cb696ce6..0000000000
--- a/include/asm-ppc64/tlb.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- *	TLB shootdown specifics for PPC64
- *
- * Copyright (C) 2002 Anton Blanchard, IBM Corp.
- * Copyright (C) 2002 Paul Mackerras, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _PPC64_TLB_H
-#define _PPC64_TLB_H
-
-#include <asm/tlbflush.h>
-
-struct mmu_gather;
-
-extern void pte_free_finish(void);
-
-static inline void tlb_flush(struct mmu_gather *tlb)
-{
-	flush_tlb_pending();
-	pte_free_finish();
-}
-
-/* Avoid pulling in another include just for this */
-#define check_pgt_cache()	do { } while (0)
-
-/* Get the generic bits... */
-#include <asm-generic/tlb.h>
-
-/* Nothing needed here in fact... */
-#define tlb_start_vma(tlb, vma)	do { } while (0)
-#define tlb_end_vma(tlb, vma)	do { } while (0)
-
-#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
-
-#endif /* _PPC64_TLB_H */
-- 
2.39.5