linux-master/mm/highmem.c

173 			idx = arch_kmap_local_map_idx(i, pte_pfn(pteval));
177 				return pte_page(kctrl->pteval[i]);
484 # define arch_kmap_local_post_map(vaddr, pteval)	do { } while (0)
540 	pte_t pteval, *kmap_pte;
554 	pteval = pfn_pte(pfn, prot);
555 	arch_kmap_local_set_pte(&init_mm, vaddr, kmap_pte, pteval);
556 	arch_kmap_local_post_map(vaddr, pteval);
557 	current->kmap_ctrl.pteval[kmap_local_idx()] = pteval;
617 	current->kmap_ctrl.pteval[kmap_local_idx()] = __pte(0);
642 		pte_t pteval = tsk->kmap_ctrl.pteval[i];
648 			WARN_ON_ONCE(pte_val(pteval) != 0);
651 		if (WARN_ON_ONCE(pte_none(pteval)))
656 		 * coloured PTE index. Uses the PFN encoded into the pteval
661 		idx = arch_kmap_local_map_idx(i, pte_pfn(pteval));
679 		pte_t pteval = tsk->kmap_ctrl.pteval[i];
685 			WARN_ON_ONCE(pte_val(pteval) != 0);
688 		if (WARN_ON_ONCE(pte_none(pteval)))
692 		idx = arch_kmap_local_map_idx(i, pte_pfn(pteval));
695 		set_pte_at(&init_mm, addr, kmap_pte, pteval);
696 		arch_kmap_local_post_map(addr, pteval);