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Diffstat (limited to 'arch/mn10300/mm/mmu-context.c')
-rw-r--r--arch/mn10300/mm/mmu-context.c62
1 files changed, 0 insertions, 62 deletions
diff --git a/arch/mn10300/mm/mmu-context.c b/arch/mn10300/mm/mmu-context.c
deleted file mode 100644
index a4f7d3dcc6e6..000000000000
--- a/arch/mn10300/mm/mmu-context.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* MN10300 MMU context allocation and management
- *
- * Copyright (C) 2007 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 Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
-
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
-/*
- * list of the MMU contexts last allocated on each CPU
- */
-unsigned long mmu_context_cache[NR_CPUS] = {
- [0 ... NR_CPUS - 1] =
- MMU_CONTEXT_FIRST_VERSION * 2 - (1 - MMU_CONTEXT_TLBPID_LOCK_NR),
-};
-#endif /* CONFIG_MN10300_TLB_USE_PIDR */
-
-/*
- * preemptively set a TLB entry
- */
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
-{
- unsigned long pteu, ptel, cnx, flags;
- pte_t pte = *ptep;
-
- addr &= PAGE_MASK;
- ptel = pte_val(pte) & ~(xPTEL_UNUSED1 | xPTEL_UNUSED2);
-
- /* make sure the context doesn't migrate and defend against
- * interference from vmalloc'd regions */
- local_irq_save(flags);
-
- cnx = ~MMU_NO_CONTEXT;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- cnx = mm_context(vma->vm_mm);
-#endif
-
- if (cnx != MMU_NO_CONTEXT) {
- pteu = addr;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- pteu |= cnx & MMU_CONTEXT_TLBPID_MASK;
-#endif
- if (!(pte_val(pte) & _PAGE_NX)) {
- IPTEU = pteu;
- if (IPTEL & xPTEL_V)
- IPTEL = ptel;
- }
- DPTEU = pteu;
- if (DPTEL & xPTEL_V)
- DPTEL = ptel;
- }
-
- local_irq_restore(flags);
-}