Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

1 files changed, 50 insertions, 0 deletions

diff --git a/arch/frv/include/asm/mmu_context.h b/arch/frv/include/asm/mmu_context.h
new file mode 100644
index 00000000000..c7daa395156
--- /dev/null
+++ b/arch/frv/include/asm/mmu_context.h
@@ -0,0 +1,50 @@
+/* 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 <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm-generic/mm_hooks.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