1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2013 Huawei Ltd.
4 * Author: Jiang Liu <liuj97@gmail.com>
5 *
6 * Based on arch/arm/kernel/jump_label.c
7 */
8#include <linux/kernel.h>
9#include <linux/jump_label.h>
10#include <asm/insn.h>
11#include <asm/patching.h>
12
13void arch_jump_label_transform(struct jump_entry *entry,
14			       enum jump_label_type type)
15{
16	void *addr = (void *)jump_entry_code(entry);
17	u32 insn;
18
19	if (type == JUMP_LABEL_JMP) {
20		insn = aarch64_insn_gen_branch_imm(jump_entry_code(entry),
21						   jump_entry_target(entry),
22						   AARCH64_INSN_BRANCH_NOLINK);
23	} else {
24		insn = aarch64_insn_gen_nop();
25	}
26
27	aarch64_insn_patch_text_nosync(addr, insn);
28}
29