1 files changed, 0 insertions, 148 deletions
diff --git a/include/asm-avr32/mmu_context.h b/include/asm-avr32/mmu_context.h
deleted file mode 100644
index 27ff234..0000000
--- a/include/asm-avr32/mmu_context.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * ASID handling taken from SH implementation.
- *   Copyright (C) 1999 Niibe Yutaka
- *   Copyright (C) 2003 Paul Mundt
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_AVR32_MMU_CONTEXT_H
-#define __ASM_AVR32_MMU_CONTEXT_H
-
-#include <asm/tlbflush.h>
-#include <asm/sysreg.h>
-#include <asm-generic/mm_hooks.h>
-
-/*
- * The MMU "context" consists of two things:
- *    (a) TLB cache version
- *    (b) ASID (Address Space IDentifier)
- */
-#define MMU_CONTEXT_ASID_MASK		0x000000ff
-#define MMU_CONTEXT_VERSION_MASK	0xffffff00
-#define MMU_CONTEXT_FIRST_VERSION       0x00000100
-#define NO_CONTEXT			0
-
-#define MMU_NO_ASID			0x100
-
-/* Virtual Page Number mask */
-#define MMU_VPN_MASK	0xfffff000
-
-/* Cache of MMU context last used */
-extern unsigned long mmu_context_cache;
-
-/*
- * Get MMU context if needed
- */
-static inline void
-get_mmu_context(struct mm_struct *mm)
-{
-	unsigned long mc = mmu_context_cache;
-
-	if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0)
-		/* It's up to date, do nothing */
-		return;
-
-	/* It's old, we need to get new context with new version */
-	mc = ++mmu_context_cache;
-	if (!(mc & MMU_CONTEXT_ASID_MASK)) {
-		/*
-		 * We have exhausted all ASIDs of this version.
-		 * Flush the TLB and start new cycle.
-		 */
-		flush_tlb_all();
-		/*
-		 * Fix version. Note that we avoid version #0
-		 * to distinguish NO_CONTEXT.
-		 */
-		if (!mc)
-			mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
-	}
-	mm->context = mc;
-}
-
-/*
- * Initialize the context related info for a new mm_struct
- * instance.
- */
-static inline int init_new_context(struct task_struct *tsk,
-				       struct mm_struct *mm)
-{
-	mm->context = NO_CONTEXT;
-	return 0;
-}
-
-/*
- * Destroy context related info for an mm_struct that is about
- * to be put to rest.
- */
-static inline void destroy_context(struct mm_struct *mm)
-{
-	/* Do nothing */
-}
-
-static inline void set_asid(unsigned long asid)
-{
-	/* XXX: We're destroying TLBEHI[8:31] */
-	sysreg_write(TLBEHI, asid & MMU_CONTEXT_ASID_MASK);
-	cpu_sync_pipeline();
-}
-
-static inline unsigned long get_asid(void)
-{
-	unsigned long asid;
-
-	asid = sysreg_read(TLBEHI);
-	return asid & MMU_CONTEXT_ASID_MASK;
-}
-
-static inline void activate_context(struct mm_struct *mm)
-{
-	get_mmu_context(mm);
-	set_asid(mm->context & MMU_CONTEXT_ASID_MASK);
-}
-
-static inline void switch_mm(struct mm_struct *prev,
-				 struct mm_struct *next,
-				 struct task_struct *tsk)
-{
-	if (likely(prev != next)) {
-		unsigned long __pgdir = (unsigned long)next->pgd;
-
-		sysreg_write(PTBR, __pgdir);
-		activate_context(next);
-	}
-}
-
-#define deactivate_mm(tsk,mm) do { } while(0)
-
-#define activate_mm(prev, next) switch_mm((prev), (next), NULL)
-
-static inline void
-enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
-
-
-static inline void enable_mmu(void)
-{
-	sysreg_write(MMUCR, (SYSREG_BIT(MMUCR_S)
-			     | SYSREG_BIT(E)
-			     | SYSREG_BIT(MMUCR_I)));
-	nop(); nop(); nop(); nop(); nop(); nop(); nop(); nop();
-
-	if (mmu_context_cache == NO_CONTEXT)
-		mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
-
-	set_asid(mmu_context_cache & MMU_CONTEXT_ASID_MASK);
-}
-
-static inline void disable_mmu(void)
-{
-	sysreg_write(MMUCR, SYSREG_BIT(MMUCR_S));
-}
-
-#endif /* __ASM_AVR32_MMU_CONTEXT_H */