copy_page.S (e5451c8f8330e03ad3cfa16048b4daf961af434f) copy_page.S (4dd1837d7589f468ed109556513f476e7a7f9121)
1/*
2 * linux/arch/arm/lib/copypage.S
3 *
4 * Copyright (C) 1995-1999 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * ASM optimised string functions
11 */
12#include <linux/linkage.h>
13#include <asm/assembler.h>
14#include <asm/asm-offsets.h>
15#include <asm/cache.h>
1/*
2 * linux/arch/arm/lib/copypage.S
3 *
4 * Copyright (C) 1995-1999 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * ASM optimised string functions
11 */
12#include <linux/linkage.h>
13#include <asm/assembler.h>
14#include <asm/asm-offsets.h>
15#include <asm/cache.h>
16#include <asm/export.h>
16
17#define COPY_COUNT (PAGE_SZ / (2 * L1_CACHE_BYTES) PLD( -1 ))
18
19 .text
20 .align 5
21/*
22 * StrongARM optimised copy_page routine
23 * now 1.78bytes/cycle, was 1.60 bytes/cycle (50MHz bus -> 89MB/s)

--- 16 unchanged lines hidden (view full) ---

40 subs r2, r2, #1 @ 1
41 stmia r0!, {r3, r4, ip, lr} @ 4
42 ldmgtia r1!, {r3, r4, ip, lr} @ 4
43 bgt 1b @ 1
44 PLD( ldmeqia r1!, {r3, r4, ip, lr} )
45 PLD( beq 2b )
46 ldmfd sp!, {r4, pc} @ 3
47ENDPROC(copy_page)
17
18#define COPY_COUNT (PAGE_SZ / (2 * L1_CACHE_BYTES) PLD( -1 ))
19
20 .text
21 .align 5
22/*
23 * StrongARM optimised copy_page routine
24 * now 1.78bytes/cycle, was 1.60 bytes/cycle (50MHz bus -> 89MB/s)

--- 16 unchanged lines hidden (view full) ---

41 subs r2, r2, #1 @ 1
42 stmia r0!, {r3, r4, ip, lr} @ 4
43 ldmgtia r1!, {r3, r4, ip, lr} @ 4
44 bgt 1b @ 1
45 PLD( ldmeqia r1!, {r3, r4, ip, lr} )
46 PLD( beq 2b )
47 ldmfd sp!, {r4, pc} @ 3
48ENDPROC(copy_page)
49EXPORT_SYMBOL(copy_page)