1 files changed, 77 insertions, 0 deletions

diff --git a/include/asm-frv/tlbflush.h b/include/asm-frv/tlbflush.h
new file mode 100644
index 000000000000..bc3462625084
--- /dev/null
+++ b/include/asm-frv/tlbflush.h
@@ -0,0 +1,77 @@
+/* tlbflush.h: TLB flushing functions
+ *
+ * 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_TLBFLUSH_H
+#define _ASM_TLBFLUSH_H
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <asm/processor.h>
+
+#ifdef CONFIG_MMU
+
+#ifndef __ASSEMBLY__
+extern void asmlinkage __flush_tlb_all(void);
+extern void asmlinkage __flush_tlb_mm(unsigned long contextid);
+extern void asmlinkage __flush_tlb_page(unsigned long contextid, unsigned long start);
+extern void asmlinkage __flush_tlb_range(unsigned long contextid,
+                                         unsigned long start, unsigned long end);
+#endif /* !__ASSEMBLY__ */
+
+#define flush_tlb_all()                         \
+do {                                            \
+        preempt_disable();                      \
+        __flush_tlb_all();                      \
+        preempt_enable();                       \
+} while(0)
+
+#define flush_tlb_mm(mm)                        \
+do {                                            \
+        preempt_disable();                      \
+        __flush_tlb_mm((mm)->context.id);       \
+        preempt_enable();                       \
+} while(0)
+
+#define flush_tlb_range(vma,start,end)                                  \
+do {                                                                    \
+        preempt_disable();                                              \
+        __flush_tlb_range((vma)->vm_mm->context.id, start, end);        \
+        preempt_enable();                                               \
+} while(0)
+
+#define flush_tlb_page(vma,addr)                                \
+do {                                                            \
+        preempt_disable();                                      \
+        __flush_tlb_page((vma)->vm_mm->context.id, addr);       \
+        preempt_enable();                                       \
+} while(0)
+
+
+#define __flush_tlb_global()                    flush_tlb_all()
+#define flush_tlb()                             flush_tlb_all()
+#define flush_tlb_kernel_range(start, end)      flush_tlb_all()
+#define flush_tlb_pgtables(mm,start,end) \
+        asm volatile("movgs %0,scr0 ! movgs %0,scr1" :: "r"(ULONG_MAX) : "memory");
+
+#else
+
+#define flush_tlb()                             BUG()
+#define flush_tlb_all()                         BUG()
+#define flush_tlb_mm(mm)                        BUG()
+#define flush_tlb_page(vma,addr)                BUG()
+#define flush_tlb_range(mm,start,end)           BUG()
+#define flush_tlb_pgtables(mm,start,end)        BUG()
+#define flush_tlb_kernel_range(start, end)      BUG()
+
+#endif
+
+
+#endif /* _ASM_TLBFLUSH_H */