Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  linux/arch/arm/lib/io-readsw-armv3.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  Copyright (C) 1995-2000 Russell King
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <asm/assembler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) .Linsw_bad_alignment:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 		adr	r0, .Linsw_bad_align_msg
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 		mov	r2, lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 		b	panic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) .Linsw_bad_align_msg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 		.asciz	"insw: bad buffer alignment (0x%p, lr=0x%08lX)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 		.align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) .Linsw_align:	tst	r1, #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 		bne	.Linsw_bad_alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 		ldr	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 		strb	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 		mov	r3, r3, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 		strb	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 		subs	r2, r2, #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		reteq	lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) ENTRY(__raw_readsw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 		teq	r2, #0		@ do we have to check for the zero len?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		reteq	lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		tst	r1, #3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		bne	.Linsw_align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) .Linsw_aligned:	mov	ip, #0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		orr	ip, ip, ip, lsl #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		stmfd	sp!, {r4, r5, r6, lr}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		subs	r2, r2, #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		bmi	.Lno_insw_8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) .Linsw_8_lp:	ldr	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		and	r3, r3, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		ldr	r4, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		orr	r3, r3, r4, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		ldr	r4, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		and	r4, r4, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		ldr	r5, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		orr	r4, r4, r5, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		ldr	r5, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		and	r5, r5, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		ldr	r6, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		orr	r5, r5, r6, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		ldr	r6, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		and	r6, r6, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		ldr	lr, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		orr	r6, r6, lr, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		stmia	r1!, {r3 - r6}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		subs	r2, r2, #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		bpl	.Linsw_8_lp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		tst	r2, #7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		ldmfdeq	sp!, {r4, r5, r6, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) .Lno_insw_8:	tst	r2, #4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		beq	.Lno_insw_4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		ldr	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		and	r3, r3, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		ldr	r4, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		orr	r3, r3, r4, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		ldr	r4, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		and	r4, r4, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		ldr	r5, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		orr	r4, r4, r5, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		stmia	r1!, {r3, r4}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) .Lno_insw_4:	tst	r2, #2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		beq	.Lno_insw_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		ldr	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		and	r3, r3, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		ldr	r4, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		orr	r3, r3, r4, lsl #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		str	r3, [r1], #4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) .Lno_insw_2:	tst	r2, #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		ldrne	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		strbne	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		movne	r3, r3, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		strbne	r3, [r1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		ldmfd	sp!, {r4, r5, r6, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)