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) /* NG4patch.S: Patch Ultra-I routines with Niagara-4 variant.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^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) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #define BRANCH_ALWAYS	0x10680000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define NOP		0x01000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define NG_DO_PATCH(OLD, NEW)	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	sethi	%hi(NEW), %g1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	or	%g1, %lo(NEW), %g1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	sethi	%hi(OLD), %g2; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	or	%g2, %lo(OLD), %g2; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	sub	%g1, %g2, %g1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	sethi	%hi(BRANCH_ALWAYS), %g3; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	sll	%g1, 11, %g1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	srl	%g1, 11 + 2, %g1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	or	%g3, %lo(BRANCH_ALWAYS), %g3; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	or	%g3, %g1, %g3; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	stw	%g3, [%g2]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	sethi	%hi(NOP), %g3; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	or	%g3, %lo(NOP), %g3; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	stw	%g3, [%g2 + 0x4]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	flush	%g2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	.globl	niagara4_patch_copyops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	.type	niagara4_patch_copyops,#function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) niagara4_patch_copyops:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	NG_DO_PATCH(memcpy, NG4memcpy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	NG_DO_PATCH(raw_copy_from_user, NG4copy_from_user)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	NG_DO_PATCH(raw_copy_to_user, NG4copy_to_user)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	retl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	 nop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	.size	niagara4_patch_copyops,.-niagara4_patch_copyops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	.globl	niagara4_patch_bzero
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	.type	niagara4_patch_bzero,#function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) niagara4_patch_bzero:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	NG_DO_PATCH(memset, NG4memset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	NG_DO_PATCH(__bzero, NG4bzero)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	NG_DO_PATCH(__clear_user, NGclear_user)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	NG_DO_PATCH(tsb_init, NGtsb_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	retl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	 nop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	.size	niagara4_patch_bzero,.-niagara4_patch_bzero
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	.globl	niagara4_patch_pageops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	.type	niagara4_patch_pageops,#function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) niagara4_patch_pageops:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	NG_DO_PATCH(copy_user_page, NG4copy_user_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	NG_DO_PATCH(_clear_page, NG4clear_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	NG_DO_PATCH(clear_user_page, NG4clear_user_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	retl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	 nop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	.size	niagara4_patch_pageops,.-niagara4_patch_pageops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) ENTRY(niagara4_patch_fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	NG_DO_PATCH(fls, NG4fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	NG_DO_PATCH(__fls, __NG4fls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	retl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	 nop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) ENDPROC(niagara4_patch_fls)