1 /* the upper-most page table pointer */ 2 3 #ifdef CONFIG_MMU 4 5 extern pmd_t *top_pmd; 6 7 #define TOP_PTE(x) pte_offset_kernel(top_pmd, x) 8 9 static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt) 10 { 11 return pmd_offset(pgd, virt); 12 } 13 14 static inline pmd_t *pmd_off_k(unsigned long virt) 15 { 16 return pmd_off(pgd_offset_k(virt), virt); 17 } 18 19 struct mem_type { 20 unsigned int prot_pte; 21 unsigned int prot_l1; 22 unsigned int prot_sect; 23 unsigned int domain; 24 }; 25 26 const struct mem_type *get_mem_type(unsigned int type); 27 28 #endif 29 30 struct map_desc; 31 struct meminfo; 32 struct pglist_data; 33 34 void __init create_mapping(struct map_desc *md); 35 void __init bootmem_init(struct meminfo *mi); 36 void reserve_node_zero(struct pglist_data *pgdat); 37 38 extern void _text, _stext, _etext, __data_start, _end, __init_begin, __init_end; 39