This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-frv / mmu_context.h

diff --git a/include/asm-frv/mmu_context.h b/include/asm-frv/mmu_context.h
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+++ b/include/asm-frv/mmu_context.h
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+/* mmu_context.h: MMU context management routines
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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_MMU_CONTEXT_H
+#define _ASM_MMU_CONTEXT_H
+
+#include <linux/config.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+
+static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+}
+
+#ifdef CONFIG_MMU
+extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+extern void change_mm_context(mm_context_t *old, mm_context_t *ctx, pgd_t *_pgd);
+extern void destroy_context(struct mm_struct *mm);
+
+#else
+#define init_new_context(tsk, mm)              ({ 0; })
+#define change_mm_context(old, ctx, _pml4)     do {} while(0)
+#define destroy_context(mm)                    do {} while(0)
+#endif
+
+#define switch_mm(prev, next, tsk)                                             \
+do {                                                                           \
+       if (prev != next)                                                       \
+               change_mm_context(&prev->context, &next->context, next->pgd);   \
+} while(0)
+
+#define activate_mm(prev, next)                                                \
+do {                                                                   \
+       change_mm_context(&prev->context, &next->context, next->pgd);   \
+} while(0)
+
+#define deactivate_mm(tsk, mm)                 \
+do {                                           \
+} while(0)
+
+#endif