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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2013 Huawei Ltd.
* Author: Jiang Liu <liuj97@gmail.com>
*
* Based on arch/arm/kernel/jump_label.c
*/
#include <linux/kernel.h>
#include <linux/jump_label.h>
#include <linux/smp.h>
#include <asm/insn.h>
#include <asm/text-patching.h>
bool arch_jump_label_transform_queue(struct jump_entry *entry,
enum jump_label_type type)
{
void *addr = (void *)jump_entry_code(entry);
u32 insn;
if (type == JUMP_LABEL_JMP) {
insn = aarch64_insn_gen_branch_imm(jump_entry_code(entry),
jump_entry_target(entry),
AARCH64_INSN_BRANCH_NOLINK);
} else {
insn = aarch64_insn_gen_nop();
}
aarch64_insn_patch_text_nosync(addr, insn);
return true;
}
void arch_jump_label_transform_apply(void)
{
kick_all_cpus_sync();
}
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