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-writesb.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) 		.macro	outword, rd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef __ARMEB__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		strb	\rd, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		mov	\rd, \rd, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		strb	\rd, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		mov	\rd, \rd, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		strb	\rd, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		mov	\rd, \rd, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		strb	\rd, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		mov	lr, \rd, lsr #24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		strb	lr, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		mov	lr, \rd, lsr #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		strb	lr, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		mov	lr, \rd, lsr #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		strb	lr, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		strb	\rd, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		.endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .Loutsb_align:	rsb	ip, ip, #4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		cmp	ip, r2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		movgt	ip, r2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		cmp	ip, #2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		ldrb	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		strb	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		ldrbge	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		strbge	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		ldrbgt	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		strbgt	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		subs	r2, r2, ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		bne	.Loutsb_aligned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ENTRY(__raw_writesb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		teq	r2, #0		@ do we have to check for the zero len?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		reteq	lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		ands	ip, r1, #3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		bne	.Loutsb_align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .Loutsb_aligned:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		stmfd	sp!, {r4, r5, lr}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		subs	r2, r2, #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		bmi	.Loutsb_no_16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) .Loutsb_16_lp:	ldmia	r1!, {r3, r4, r5, ip}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		outword	r3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		outword	r4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		outword	r5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		outword	ip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		subs	r2, r2, #16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 		bpl	.Loutsb_16_lp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		tst	r2, #15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 		ldmfdeq	sp!, {r4, r5, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .Loutsb_no_16:	tst	r2, #8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		beq	.Loutsb_no_8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 		ldmia	r1!, {r3, r4}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 		outword	r3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		outword	r4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .Loutsb_no_8:	tst	r2, #4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 		beq	.Loutsb_no_4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 		ldr	r3, [r1], #4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 		outword	r3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .Loutsb_no_4:	ands	r2, r2, #3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 		ldmfdeq	sp!, {r4, r5, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 		cmp	r2, #2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 		ldrb	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 		strb	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 		ldrbge	r3, [r1], #1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 		strbge	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 		ldrbgt	r3, [r1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 		strbgt	r3, [r0]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 		ldmfd	sp!, {r4, r5, pc}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) ENDPROC(__raw_writesb)