copy_page.S (e5451c8f8330e03ad3cfa16048b4daf961af434f) | copy_page.S (4dd1837d7589f468ed109556513f476e7a7f9121) |
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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> |
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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) |
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