70 void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)  in ___pmd_free_tlb()  argument
72 	struct page *page = virt_to_page(pmd);  in ___pmd_free_tlb()
73 	paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);  in ___pmd_free_tlb()
135 	   ptes in non-PAE, or shared PMD in PAE), then just copy the  in pgd_ctor()
165  * kernel pmd is shared. If PAE were not to share the pmd a similar
181  * Also, if we're in a paravirt environment where the kernel pmd is
197 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)  in pud_populate()  argument
199 	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);  in pud_populate()
202 	   reserved at the pmd (PDPT) level. */  in pud_populate()
203 	set_pud(pudp, __pud(__pa(pmd) | _PAGE_PRESENT));  in pud_populate()
244 		pmd_t *pmd = (pmd_t *)__get_free_page(gfp);  in preallocate_pmds()  local
245 		if (!pmd)  in preallocate_pmds()
247 		if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {  in preallocate_pmds()
248 			free_page((unsigned long)pmd);  in preallocate_pmds()
249 			pmd = NULL;  in preallocate_pmds()
252 		if (pmd)  in preallocate_pmds()
254 		pmds[i] = pmd;  in preallocate_pmds()
266  * Mop up any pmd pages which may still be attached to the pgd.
267  * Normally they will be freed by munmap/exit_mmap, but any pmd we
276 		pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);  in mop_up_one_pmd()  local
281 		pmd_free(mm, pmd);  in mop_up_one_pmd()
318 		pmd_t *pmd = pmds[i];  in pgd_prepopulate_pmd()  local
321 			memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),  in pgd_prepopulate_pmd()
324 		pud_populate(mm, pud, pmd);  in pgd_prepopulate_pmd()
345 		pmd_t *pmd = pmds[i];  in pgd_prepopulate_user_pmd()  local
347 		memcpy(pmd, (pmd_t *)pgd_page_vaddr(*s_pgd),  in pgd_prepopulate_user_pmd()
350 		pud_populate(mm, u_pud, pmd);  in pgd_prepopulate_user_pmd()
380 	 * shared kernel pmd. And this requires a whole page for pgd.  in pgd_cache_init()
387 	 * shared kernel pmd. Shared kernel pmd does not require a whole  in pgd_cache_init()
520 		 * We had a write-protection fault here and changed the pmd  in pmdp_set_access_flags()
736  * pmd_set_huge - setup kernel PMD mapping
742 int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)  in pmd_set_huge()  argument
755 	if (pmd_present(*pmd) && !pmd_huge(*pmd))  in pmd_set_huge()
760 	set_pte((pte_t *)pmd, pfn_pte(  in pmd_set_huge()
783  * pmd_clear_huge - clear kernel PMD mapping when it is set
785  * Returns 1 on success and 0 on failure (no PMD map is found).
787 int pmd_clear_huge(pmd_t *pmd)  in pmd_clear_huge()  argument
789 	if (pmd_large(*pmd)) {  in pmd_clear_huge()
790 		pmd_clear(pmd);  in pmd_clear_huge()
799  * pud_free_pmd_page - Clear pud entry and free pmd page.
810 	pmd_t *pmd, *pmd_sv;  in pud_free_pmd_page()  local
817 	pmd = (pmd_t *)pud_page_vaddr(*pud);  in pud_free_pmd_page()
823 		pmd_sv[i] = pmd[i];  in pud_free_pmd_page()
824 		if (!pmd_none(pmd[i]))  in pud_free_pmd_page()
825 			pmd_clear(&pmd[i]);  in pud_free_pmd_page()
841 	free_page((unsigned long)pmd);  in pud_free_pmd_page()
847  * pmd_free_pte_page - Clear pmd entry and free pte page.
848  * @pmd: Pointer to a PMD.
849  * @addr: Virtual address associated with pmd.
851  * Context: The pmd range has been unmapped and TLB purged.
854 int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)  in pmd_free_pte_page()  argument
858 	if (pmd_none(*pmd))  in pmd_free_pte_page()
861 	pte = (pte_t *)pmd_page_vaddr(*pmd);  in pmd_free_pte_page()
862 	pmd_clear(pmd);  in pmd_free_pte_page()
881  * does not update sync'd pmd entries. See vmalloc_sync_one().
883 int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)  in pmd_free_pte_page()  argument
885 	return pmd_none(*pmd);  in pmd_free_pte_page()