21  * allocate the first pmd adjacent to the pgd.  This means that we can
22  * subtract a constant offset to get to it.  The pmd and pgd sizes are
23  * arranged so that a single pmd covers 4GB (giving a full 64-bit
37 		/* Populate first pmd with allocated memory.  We mark it  in pgd_alloc()
39 		 * pmd entry may not be cleared. */  in pgd_alloc()
44 		/* The first pmd entry also is marked with PxD_FLAG_ATTACHED as  in pgd_alloc()
45 		 * a signal that this pmd may not be freed */  in pgd_alloc()
63 /* Three Level Page Table Support for pmd's */
65 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)  in pud_populate()  argument
68 			(__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT)));  in pud_populate()
76 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)  in pmd_free()  argument
78 	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {  in pmd_free()
80 		 * This is the permanent pmd attached to the pgd;  in pmd_free()
88 	free_pages((unsigned long)pmd, PMD_ORDER);  in pmd_free()
94 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)  in pmd_populate_kernel()  argument
98 	 * the permanent pmd */  in pmd_populate_kernel()
99 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)  in pmd_populate_kernel()
100 		set_pmd(pmd, __pmd((PxD_FLAG_PRESENT |  in pmd_populate_kernel()
106 		set_pmd(pmd, __pmd((PxD_FLAG_PRESENT | PxD_FLAG_VALID)  in pmd_populate_kernel()
110 #define pmd_populate(mm, pmd, pte_page) \  argument
111 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
112 #define pmd_pgtable(pmd) pmd_page(pmd)  argument