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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
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