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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_INIT_H
#define _ASM_X86_INIT_H
#if defined(CONFIG_CC_IS_CLANG) && CONFIG_CLANG_VERSION < 170000
#define __head __section(".head.text") __no_sanitize_undefined __no_stack_protector
#else
#define __head __section(".head.text") __no_sanitize_undefined
#endif
struct x86_mapping_info {
void *(*alloc_pgt_page)(void *); /* allocate buf for page table */
void (*free_pgt_page)(void *, void *); /* free buf for page table */
void *context; /* context for alloc_pgt_page */
unsigned long page_flag; /* page flag for PMD or PUD entry */
unsigned long offset; /* ident mapping offset */
bool direct_gbpages; /* PUD level 1GB page support */
unsigned long kernpg_flag; /* kernel pagetable flag override */
};
int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
unsigned long pstart, unsigned long pend);
void kernel_ident_mapping_free(struct x86_mapping_info *info, pgd_t *pgd);
#endif /* _ASM_X86_INIT_H */
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