1 files changed, 0 insertions, 140 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/copypage-v6.c b/ANDROID_3.4.5/arch/arm/mm/copypage-v6.c
deleted file mode 100644
index b9bcc9d7..00000000
--- a/ANDROID_3.4.5/arch/arm/mm/copypage-v6.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- *  linux/arch/arm/mm/copypage-v6.c
- *
- *  Copyright (C) 2002 Deep Blue Solutions Ltd, All Rights Reserved.
- *
- * 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.
- */
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-
-#include <asm/pgtable.h>
-#include <asm/shmparam.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-#include <asm/cachetype.h>
-
-#include "mm.h"
-
-#if SHMLBA > 16384
-#error FIX ME
-#endif
-
-static DEFINE_RAW_SPINLOCK(v6_lock);
-
-/*
- * Copy the user page.  No aliasing to deal with so we can just
- * attack the kernel's existing mapping of these pages.
- */
-static void v6_copy_user_highpage_nonaliasing(struct page *to,
-	struct page *from, unsigned long vaddr, struct vm_area_struct *vma)
-{
-	void *kto, *kfrom;
-
-	kfrom = kmap_atomic(from);
-	kto = kmap_atomic(to);
-	copy_page(kto, kfrom);
-	kunmap_atomic(kto);
-	kunmap_atomic(kfrom);
-}
-
-/*
- * Clear the user page.  No aliasing to deal with so we can just
- * attack the kernel's existing mapping of this page.
- */
-static void v6_clear_user_highpage_nonaliasing(struct page *page, unsigned long vaddr)
-{
-	void *kaddr = kmap_atomic(page);
-	clear_page(kaddr);
-	kunmap_atomic(kaddr);
-}
-
-/*
- * Discard data in the kernel mapping for the new page.
- * FIXME: needs this MCRR to be supported.
- */
-static void discard_old_kernel_data(void *kto)
-{
-	__asm__("mcrr	p15, 0, %1, %0, c6	@ 0xec401f06"
-	   :
-	   : "r" (kto),
-	     "r" ((unsigned long)kto + PAGE_SIZE - L1_CACHE_BYTES)
-	   : "cc");
-}
-
-/*
- * Copy the page, taking account of the cache colour.
- */
-static void v6_copy_user_highpage_aliasing(struct page *to,
-	struct page *from, unsigned long vaddr, struct vm_area_struct *vma)
-{
-	unsigned int offset = CACHE_COLOUR(vaddr);
-	unsigned long kfrom, kto;
-
-	if (!test_and_set_bit(PG_dcache_clean, &from->flags))
-		__flush_dcache_page(page_mapping(from), from);
-
-	/* FIXME: not highmem safe */
-	discard_old_kernel_data(page_address(to));
-
-	/*
-	 * Now copy the page using the same cache colour as the
-	 * pages ultimate destination.
-	 */
-	raw_spin_lock(&v6_lock);
-
-	kfrom = COPYPAGE_V6_FROM + (offset << PAGE_SHIFT);
-	kto   = COPYPAGE_V6_TO + (offset << PAGE_SHIFT);
-
-	set_top_pte(kfrom, mk_pte(from, PAGE_KERNEL));
-	set_top_pte(kto, mk_pte(to, PAGE_KERNEL));
-
-	copy_page((void *)kto, (void *)kfrom);
-
-	raw_spin_unlock(&v6_lock);
-}
-
-/*
- * Clear the user page.  We need to deal with the aliasing issues,
- * so remap the kernel page into the same cache colour as the user
- * page.
- */
-static void v6_clear_user_highpage_aliasing(struct page *page, unsigned long vaddr)
-{
-	unsigned long to = COPYPAGE_V6_TO + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
-
-	/* FIXME: not highmem safe */
-	discard_old_kernel_data(page_address(page));
-
-	/*
-	 * Now clear the page using the same cache colour as
-	 * the pages ultimate destination.
-	 */
-	raw_spin_lock(&v6_lock);
-
-	set_top_pte(to, mk_pte(page, PAGE_KERNEL));
-	clear_page((void *)to);
-
-	raw_spin_unlock(&v6_lock);
-}
-
-struct cpu_user_fns v6_user_fns __initdata = {
-	.cpu_clear_user_highpage = v6_clear_user_highpage_nonaliasing,
-	.cpu_copy_user_highpage	= v6_copy_user_highpage_nonaliasing,
-};
-
-static int __init v6_userpage_init(void)
-{
-	if (cache_is_vipt_aliasing()) {
-		cpu_user.cpu_clear_user_highpage = v6_clear_user_highpage_aliasing;
-		cpu_user.cpu_copy_user_highpage = v6_copy_user_highpage_aliasing;
-	}
-
-	return 0;
-}
-
-core_initcall(v6_userpage_init);