Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0+ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * ARCv2 memcpy implementation optimized for unaligned memory access using.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2019 Synopsys
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifdef CONFIG_ARC_HAS_LL64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) # define LOADX(DST,RX)		ldd.ab	DST, [RX, 8]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) # define STOREX(SRC,RX)		std.ab	SRC, [RX, 8]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) # define ZOLSHFT		5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) # define ZOLAND			0x1F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) # define LOADX(DST,RX)		ld.ab	DST, [RX, 4]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) # define STOREX(SRC,RX)		st.ab	SRC, [RX, 4]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) # define ZOLSHFT		4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) # define ZOLAND			0xF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ENTRY_CFI(memcpy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	mov	r3, r0		; don;t clobber ret val
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	lsr.f	lp_count, r2, ZOLSHFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	lpnz	@.Lcopy32_64bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	;; LOOP START
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	LOADX	(r6, r1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	LOADX	(r8, r1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	LOADX	(r10, r1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	LOADX	(r4, r1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	STOREX	(r6, r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	STOREX	(r8, r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	STOREX	(r10, r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	STOREX	(r4, r3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .Lcopy32_64bytes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	and.f	lp_count, r2, ZOLAND ;Last remaining 31 bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	lpnz	@.Lcopyremainingbytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	;; LOOP START
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	ldb.ab	r5, [r1, 1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	stb.ab	r5, [r3, 1]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .Lcopyremainingbytes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	j	[blink]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) END_CFI(memcpy)