1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_INIT_H 3 #define _ASM_X86_INIT_H 4 5 #define __head __section(".head.text") 6 7 struct x86_mapping_info { 8 void *(*alloc_pgt_page)(void *); /* allocate buf for page table */ 9 void *context; /* context for alloc_pgt_page */ 10 unsigned long page_flag; /* page flag for PMD or PUD entry */ 11 unsigned long offset; /* ident mapping offset */ 12 bool direct_gbpages; /* PUD level 1GB page support */ 13 unsigned long kernpg_flag; /* kernel pagetable flag override */ 14 }; 15 16 int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page, 17 unsigned long pstart, unsigned long pend); 18 19 #endif /* _ASM_X86_INIT_H */ 20