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authorStephen Rothwell <sfr@canb.auug.org.au>2005-11-04 10:20:27 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2005-11-04 10:20:27 +1100
commit9a0f78f63bc05d195aab781486ed57d1418d5f59 (patch)
tree3d1c3bbd9ec43290ed0b458d4e3bf07833caf93c /include/asm-powerpc
parentd3ab57ebdc6457543b346255fa47b0ecd7671136 (diff)
powerpc: merge tlb.h
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/tlb.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/include/asm-powerpc/tlb.h b/include/asm-powerpc/tlb.h
new file mode 100644
index 00000000000..56659f12177
--- /dev/null
+++ b/include/asm-powerpc/tlb.h
@@ -0,0 +1,70 @@
+/*
+ * 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 _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>
+#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>
+
+#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);
+
+static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
+ unsigned long address)
+{
+ if (pte_val(*ptep) & _PAGE_HASHPTE)
+ flush_hash_entry(tlb->mm, ptep, address);
+}
+
+#endif
+#endif /* __ASM_POWERPC_TLB_H */