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-rw-r--r--arch/arm/mm/copypage-v3.S67
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diff --git a/arch/arm/mm/copypage-v3.S b/arch/arm/mm/copypage-v3.S
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+++ b/arch/arm/mm/copypage-v3.S
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+/*
+ * linux/arch/arm/lib/copypage.S
+ *
+ * Copyright (C) 1995-1999 Russell King
+ *
+ * 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.
+ *
+ * ASM optimised string functions
+ */
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+#include <asm/constants.h>
+
+ .text
+ .align 5
+/*
+ * ARMv3 optimised copy_user_page
+ *
+ * FIXME: do we need to handle cache stuff...
+ */
+ENTRY(v3_copy_user_page)
+ stmfd sp!, {r4, lr} @ 2
+ mov r2, #PAGE_SZ/64 @ 1
+ ldmia r1!, {r3, r4, ip, lr} @ 4+1
+1: stmia r0!, {r3, r4, ip, lr} @ 4
+ ldmia r1!, {r3, r4, ip, lr} @ 4+1
+ stmia r0!, {r3, r4, ip, lr} @ 4
+ ldmia r1!, {r3, r4, ip, lr} @ 4+1
+ stmia r0!, {r3, r4, ip, lr} @ 4
+ ldmia r1!, {r3, r4, ip, lr} @ 4
+ subs r2, r2, #1 @ 1
+ stmia r0!, {r3, r4, ip, lr} @ 4
+ ldmneia r1!, {r3, r4, ip, lr} @ 4
+ bne 1b @ 1
+ LOADREGS(fd, sp!, {r4, pc}) @ 3
+
+ .align 5
+/*
+ * ARMv3 optimised clear_user_page
+ *
+ * FIXME: do we need to handle cache stuff...
+ */
+ENTRY(v3_clear_user_page)
+ str lr, [sp, #-4]!
+ mov r1, #PAGE_SZ/64 @ 1
+ mov r2, #0 @ 1
+ mov r3, #0 @ 1
+ mov ip, #0 @ 1
+ mov lr, #0 @ 1
+1: stmia r0!, {r2, r3, ip, lr} @ 4
+ stmia r0!, {r2, r3, ip, lr} @ 4
+ stmia r0!, {r2, r3, ip, lr} @ 4
+ stmia r0!, {r2, r3, ip, lr} @ 4
+ subs r1, r1, #1 @ 1
+ bne 1b @ 1
+ ldr pc, [sp], #4
+
+ __INITDATA
+
+ .type v3_user_fns, #object
+ENTRY(v3_user_fns)
+ .long v3_clear_user_page
+ .long v3_copy_user_page
+ .size v3_user_fns, . - v3_user_fns