1 files changed, 0 insertions, 146 deletions
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c
deleted file mode 100644
index 2fe14da1f83..00000000000
--- a/arch/sh/mm/pg-sh4.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * arch/sh/mm/pg-sh4.c
- *
- * Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- * Copyright (C) 2002 - 2007  Paul Mundt
- *
- * Released under the terms of the GNU GPL v2.0.
- */
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/mutex.h>
-#include <linux/fs.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <asm/mmu_context.h>
-#include <asm/cacheflush.h>
-
-#define CACHE_ALIAS (current_cpu_data.dcache.alias_mask)
-
-#define kmap_get_fixmap_pte(vaddr)                                     \
-	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
-
-static pte_t *kmap_coherent_pte;
-
-void __init kmap_coherent_init(void)
-{
-	unsigned long vaddr;
-
-	/* cache the first coherent kmap pte */
-	vaddr = __fix_to_virt(FIX_CMAP_BEGIN);
-	kmap_coherent_pte = kmap_get_fixmap_pte(vaddr);
-}
-
-static inline void *kmap_coherent(struct page *page, unsigned long addr)
-{
-	enum fixed_addresses idx;
-	unsigned long vaddr, flags;
-	pte_t pte;
-
-	inc_preempt_count();
-
-	idx = (addr & current_cpu_data.dcache.alias_mask) >> PAGE_SHIFT;
-	vaddr = __fix_to_virt(FIX_CMAP_END - idx);
-	pte = mk_pte(page, PAGE_KERNEL);
-
-	local_irq_save(flags);
-	flush_tlb_one(get_asid(), vaddr);
-	local_irq_restore(flags);
-
-	update_mmu_cache(NULL, vaddr, pte);
-
-	set_pte(kmap_coherent_pte - (FIX_CMAP_END - idx), pte);
-
-	return (void *)vaddr;
-}
-
-static inline void kunmap_coherent(struct page *page)
-{
-	dec_preempt_count();
-	preempt_check_resched();
-}
-
-/*
- * clear_user_page
- * @to: P1 address
- * @address: U0 address to be mapped
- * @page: page (virt_to_page(to))
- */
-void clear_user_page(void *to, unsigned long address, struct page *page)
-{
-	__set_bit(PG_mapped, &page->flags);
-
-	clear_page(to);
-	if ((((address & PAGE_MASK) ^ (unsigned long)to) & CACHE_ALIAS))
-		__flush_wback_region(to, PAGE_SIZE);
-}
-
-void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
-		       unsigned long vaddr, void *dst, const void *src,
-		       unsigned long len)
-{
-	void *vto;
-
-	__set_bit(PG_mapped, &page->flags);
-
-	vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
-	memcpy(vto, src, len);
-	kunmap_coherent(vto);
-
-	if (vma->vm_flags & VM_EXEC)
-		flush_cache_page(vma, vaddr, page_to_pfn(page));
-}
-
-void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
-			 unsigned long vaddr, void *dst, const void *src,
-			 unsigned long len)
-{
-	void *vfrom;
-
-	__set_bit(PG_mapped, &page->flags);
-
-	vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
-	memcpy(dst, vfrom, len);
-	kunmap_coherent(vfrom);
-}
-
-void copy_user_highpage(struct page *to, struct page *from,
-			unsigned long vaddr, struct vm_area_struct *vma)
-{
-	void *vfrom, *vto;
-
-	__set_bit(PG_mapped, &to->flags);
-
-	vto = kmap_atomic(to, KM_USER1);
-	vfrom = kmap_coherent(from, vaddr);
-	copy_page(vto, vfrom);
-	kunmap_coherent(vfrom);
-
-	if (((vaddr ^ (unsigned long)vto) & CACHE_ALIAS))
-		__flush_wback_region(vto, PAGE_SIZE);
-
-	kunmap_atomic(vto, KM_USER1);
-	/* Make sure this page is cleared on other CPU's too before using it */
-	smp_wmb();
-}
-EXPORT_SYMBOL(copy_user_highpage);
-
-/*
- * For SH-4, we have our own implementation for ptep_get_and_clear
- */
-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;
-}