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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2021 Sifive.
*/
#ifndef __ASM_ALTERNATIVE_H
#define __ASM_ALTERNATIVE_H
#define ERRATA_STRING_LENGTH_MAX 32
#include <asm/alternative-macros.h>
#ifndef __ASSEMBLY__
#include <linux/init.h>
#include <linux/types.h>
#include <linux/stddef.h>
#include <asm/hwcap.h>
void __init apply_boot_alternatives(void);
struct alt_entry {
void *old_ptr; /* address of original instruciton or data */
void *alt_ptr; /* address of replacement instruction or data */
unsigned long vendor_id; /* cpu vendor id */
unsigned long alt_len; /* The replacement size */
unsigned int errata_id; /* The errata id */
} __packed;
struct errata_checkfunc_id {
unsigned long vendor_id;
bool (*func)(struct alt_entry *alt);
};
void sifive_errata_patch_func(struct alt_entry *begin, struct alt_entry *end,
unsigned long archid, unsigned long impid);
#endif
#endif