powerpc: merge tlb.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

include/asm-ppc/tlb.h → include/asm-powerpc/tlb.h

@@ -1,36 +1,61 @@
 /*
- *	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
  * 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 _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 */