mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-27 22:24:11 +08:00
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
124 lines
2.0 KiB
ArmAsm
124 lines
2.0 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* linux/arch/arm/lib/io-writesw-armv3.S
|
|
*
|
|
* Copyright (C) 1995-2000 Russell King
|
|
*/
|
|
#include <linux/linkage.h>
|
|
#include <asm/assembler.h>
|
|
|
|
.Loutsw_bad_alignment:
|
|
adr r0, .Loutsw_bad_align_msg
|
|
mov r2, lr
|
|
b panic
|
|
.Loutsw_bad_align_msg:
|
|
.asciz "outsw: bad buffer alignment (0x%p, lr=0x%08lX)\n"
|
|
.align
|
|
|
|
.Loutsw_align: tst r1, #1
|
|
bne .Loutsw_bad_alignment
|
|
|
|
add r1, r1, #2
|
|
|
|
ldr r3, [r1, #-4]
|
|
mov r3, r3, lsr #16
|
|
orr r3, r3, r3, lsl #16
|
|
str r3, [r0]
|
|
subs r2, r2, #1
|
|
reteq lr
|
|
|
|
ENTRY(__raw_writesw)
|
|
teq r2, #0 @ do we have to check for the zero len?
|
|
reteq lr
|
|
tst r1, #3
|
|
bne .Loutsw_align
|
|
|
|
stmfd sp!, {r4, r5, r6, lr}
|
|
|
|
subs r2, r2, #8
|
|
bmi .Lno_outsw_8
|
|
|
|
.Loutsw_8_lp: ldmia r1!, {r3, r4, r5, r6}
|
|
|
|
mov ip, r3, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r3, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r4, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r4, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r5, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r5, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r6, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r6, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
subs r2, r2, #8
|
|
bpl .Loutsw_8_lp
|
|
|
|
tst r2, #7
|
|
ldmfdeq sp!, {r4, r5, r6, pc}
|
|
|
|
.Lno_outsw_8: tst r2, #4
|
|
beq .Lno_outsw_4
|
|
|
|
ldmia r1!, {r3, r4}
|
|
|
|
mov ip, r3, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r3, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r4, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r4, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
.Lno_outsw_4: tst r2, #2
|
|
beq .Lno_outsw_2
|
|
|
|
ldr r3, [r1], #4
|
|
|
|
mov ip, r3, lsl #16
|
|
orr ip, ip, ip, lsr #16
|
|
str ip, [r0]
|
|
|
|
mov ip, r3, lsr #16
|
|
orr ip, ip, ip, lsl #16
|
|
str ip, [r0]
|
|
|
|
.Lno_outsw_2: tst r2, #1
|
|
|
|
ldrne r3, [r1]
|
|
|
|
movne ip, r3, lsl #16
|
|
orrne ip, ip, ip, lsr #16
|
|
strne ip, [r0]
|
|
|
|
ldmfd sp!, {r4, r5, r6, pc}
|