/* SPDX-License-Identifier: GPL-2.0 *//* NG4patch.S: Patch Ultra-I routines with Niagara-4 variant. * * Copyright (C) 2012 David S. Miller <davem@davemloft.net> */ #include <linux/linkage.h> #define BRANCH_ALWAYS	0x10680000#define NOP		0x01000000#define NG_DO_PATCH(OLD, NEW)	\	sethi	%hi(NEW), %g1; \	or	%g1, %lo(NEW), %g1; \	sethi	%hi(OLD), %g2; \	or	%g2, %lo(OLD), %g2; \	sub	%g1, %g2, %g1; \	sethi	%hi(BRANCH_ALWAYS), %g3; \	sll	%g1, 11, %g1; \	srl	%g1, 11 + 2, %g1; \	or	%g3, %lo(BRANCH_ALWAYS), %g3; \	or	%g3, %g1, %g3; \	stw	%g3, [%g2]; \	sethi	%hi(NOP), %g3; \	or	%g3, %lo(NOP), %g3; \	stw	%g3, [%g2 + 0x4]; \	flush	%g2; 	.globl	niagara4_patch_copyops	.type	niagara4_patch_copyops,#functionniagara4_patch_copyops:	NG_DO_PATCH(memcpy, NG4memcpy)	NG_DO_PATCH(raw_copy_from_user, NG4copy_from_user)	NG_DO_PATCH(raw_copy_to_user, NG4copy_to_user)	retl	 nop	.size	niagara4_patch_copyops,.-niagara4_patch_copyops 	.globl	niagara4_patch_bzero	.type	niagara4_patch_bzero,#functionniagara4_patch_bzero:	NG_DO_PATCH(memset, NG4memset)	NG_DO_PATCH(__bzero, NG4bzero)	NG_DO_PATCH(__clear_user, NGclear_user)	NG_DO_PATCH(tsb_init, NGtsb_init)	retl	 nop	.size	niagara4_patch_bzero,.-niagara4_patch_bzero 	.globl	niagara4_patch_pageops	.type	niagara4_patch_pageops,#functionniagara4_patch_pageops:	NG_DO_PATCH(copy_user_page, NG4copy_user_page)	NG_DO_PATCH(_clear_page, NG4clear_page)	NG_DO_PATCH(clear_user_page, NG4clear_user_page)	retl	 nop	.size	niagara4_patch_pageops,.-niagara4_patch_pageops ENTRY(niagara4_patch_fls)	NG_DO_PATCH(fls, NG4fls)	NG_DO_PATCH(__fls, __NG4fls)	retl	 nopENDPROC(niagara4_patch_fls)