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-rw-r--r--arch/sh/mm/pg-sh7705.c138
1 files changed, 0 insertions, 138 deletions
diff --git a/arch/sh/mm/pg-sh7705.c b/arch/sh/mm/pg-sh7705.c
deleted file mode 100644
index eaf25147194c..000000000000
--- a/arch/sh/mm/pg-sh7705.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * arch/sh/mm/pg-sh7705.c
- *
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2004 Alex Song
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-
-#include <linux/init.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/threads.h>
-#include <linux/fs.h>
-#include <asm/addrspace.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cache.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-#include <asm/cacheflush.h>
-
-static inline void __flush_purge_virtual_region(void *p1, void *virt, int size)
-{
- unsigned long v;
- unsigned long begin, end;
- unsigned long p1_begin;
-
-
- begin = L1_CACHE_ALIGN((unsigned long)virt);
- end = L1_CACHE_ALIGN((unsigned long)virt + size);
-
- p1_begin = (unsigned long)p1 & ~(L1_CACHE_BYTES - 1);
-
- /* do this the slow way as we may not have TLB entries
- * for virt yet. */
- for (v = begin; v < end; v += L1_CACHE_BYTES) {
- unsigned long p;
- unsigned long ways, addr;
-
- p = __pa(p1_begin);
-
- ways = current_cpu_data.dcache.ways;
- addr = CACHE_OC_ADDRESS_ARRAY;
-
- do {
- unsigned long data;
-
- addr |= (v & current_cpu_data.dcache.entry_mask);
-
- data = ctrl_inl(addr);
- if ((data & CACHE_PHYSADDR_MASK) ==
- (p & CACHE_PHYSADDR_MASK)) {
- data &= ~(SH_CACHE_UPDATED|SH_CACHE_VALID);
- ctrl_outl(data, addr);
- }
-
- addr += current_cpu_data.dcache.way_incr;
- } while (--ways);
-
- p1_begin += L1_CACHE_BYTES;
- }
-}
-
-/*
- * clear_user_page
- * @to: P1 address
- * @address: U0 address to be mapped
- */
-void clear_user_page(void *to, unsigned long address, struct page *pg)
-{
- struct page *page = virt_to_page(to);
-
- __set_bit(PG_mapped, &page->flags);
- if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) {
- clear_page(to);
- __flush_wback_region(to, PAGE_SIZE);
- } else {
- __flush_purge_virtual_region(to,
- (void *)(address & 0xfffff000),
- PAGE_SIZE);
- clear_page(to);
- __flush_wback_region(to, PAGE_SIZE);
- }
-}
-
-/*
- * copy_user_page
- * @to: P1 address
- * @from: P1 address
- * @address: U0 address to be mapped
- */
-void copy_user_page(void *to, void *from, unsigned long address, struct page *pg)
-{
- struct page *page = virt_to_page(to);
-
-
- __set_bit(PG_mapped, &page->flags);
- if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) {
- copy_page(to, from);
- __flush_wback_region(to, PAGE_SIZE);
- } else {
- __flush_purge_virtual_region(to,
- (void *)(address & 0xfffff000),
- PAGE_SIZE);
- copy_page(to, from);
- __flush_wback_region(to, PAGE_SIZE);
- }
-}
-
-/*
- * For SH7705, we have our own implementation for ptep_get_and_clear
- * Copied from pg-sh4.c
- */
-pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
-{
- pte_t pte = *ptep;
-
- pte_clear(mm, addr, ptep);
- if (!pte_not_present(pte)) {
- unsigned long pfn = pte_pfn(pte);
- if (pfn_valid(pfn)) {
- struct page *page = pfn_to_page(pfn);
- struct address_space *mapping = page_mapping(page);
- if (!mapping || !mapping_writably_mapped(mapping))
- __clear_bit(PG_mapped, &page->flags);
- }
- }
-
- return pte;
-}
-