diff options
Diffstat (limited to 'kernel/arch/avr32/mm/copy_page.S')
| -rw-r--r-- | kernel/arch/avr32/mm/copy_page.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/arch/avr32/mm/copy_page.S b/kernel/arch/avr32/mm/copy_page.S new file mode 100644 index 000000000..c2b375294 --- /dev/null +++ b/kernel/arch/avr32/mm/copy_page.S @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * 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/linkage.h> +#include <asm/page.h> + +/* + * copy_page + * + * r12 to (P1 address) + * r11 from (P1 address) + * r8-r10 scratch + */ + .text + .global copy_page +copy_page: + sub r10, r11, -(1 << PAGE_SHIFT) + /* pref r11[0] */ +1: /* pref r11[8] */ + ld.d r8, r11++ + st.d r12++, r8 + cp r11, r10 + brlo 1b + mov pc, lr |