184 static void subsection_mask_set(unsigned long *map, unsigned long pfn,  in subsection_mask_set()  argument
187 	int idx = subsection_map_index(pfn);  in subsection_mask_set()
188 	int end = subsection_map_index(pfn + nr_pages - 1);  in subsection_mask_set()
193 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)  in subsection_map_init()  argument
195 	int end_sec_nr = pfn_to_section_nr(pfn + nr_pages - 1);  in subsection_map_init()
196 	unsigned long nr, start_sec_nr = pfn_to_section_nr(pfn);  in subsection_map_init()
203 				- (pfn & ~PAGE_SECTION_MASK));  in subsection_map_init()
205 		subsection_mask_set(ms->usage->subsection_map, pfn, pfns);  in subsection_map_init()
208 				pfns, subsection_map_index(pfn),  in subsection_map_init()
209 				subsection_map_index(pfn + pfns - 1));  in subsection_map_init()
211 		pfn += pfns;  in subsection_map_init()
216 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)  in subsection_map_init()  argument
224 	unsigned long pfn;  in memory_present()  local
228 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {  in memory_present()
229 		unsigned long section_nr = pfn_to_section_nr(pfn);  in memory_present()
425 struct page __init *__populate_section_memmap(unsigned long pfn,  in __populate_section_memmap()  argument
521 		unsigned long pfn = section_nr_to_pfn(pnum);  in sparse_init_nid()  local
526 		map = __populate_section_memmap(pfn, PAGES_PER_SECTION,  in sparse_init_nid()
596 	unsigned long pfn;  in online_mem_sections()  local
598 	for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {  in online_mem_sections()
599 		unsigned long section_nr = pfn_to_section_nr(pfn);  in online_mem_sections()
614 	unsigned long pfn;  in offline_mem_sections()  local
616 	for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {  in offline_mem_sections()
617 		unsigned long section_nr = pfn_to_section_nr(pfn);  in offline_mem_sections()
633 static struct page * __meminit populate_section_memmap(unsigned long pfn,  in populate_section_memmap()  argument
637 	return __populate_section_memmap(pfn, nr_pages, nid, altmap, pgmap);  in populate_section_memmap()
640 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages,  in depopulate_section_memmap()  argument
643 	unsigned long start = (unsigned long) pfn_to_page(pfn);  in depopulate_section_memmap()
657 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages)  in clear_subsection_map()  argument
661 	struct mem_section *ms = __pfn_to_section(pfn);  in clear_subsection_map()
665 	subsection_mask_set(map, pfn, nr_pages);  in clear_subsection_map()
671 				pfn, nr_pages))  in clear_subsection_map()
684 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages)  in fill_subsection_map()  argument
686 	struct mem_section *ms = __pfn_to_section(pfn);  in fill_subsection_map()
691 	subsection_mask_set(map, pfn, nr_pages);  in fill_subsection_map()
706 static struct page * __meminit populate_section_memmap(unsigned long pfn,  in populate_section_memmap()  argument
714 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages,  in depopulate_section_memmap()  argument
717 	kvfree(pfn_to_page(pfn));  in depopulate_section_memmap()
750 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages)  in clear_subsection_map()  argument
760 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages)  in fill_subsection_map()  argument
782 static void section_deactivate(unsigned long pfn, unsigned long nr_pages,  in section_deactivate()  argument
785 	struct mem_section *ms = __pfn_to_section(pfn);  in section_deactivate()
790 	if (clear_subsection_map(pfn, nr_pages))  in section_deactivate()
795 		unsigned long section_nr = pfn_to_section_nr(pfn);  in section_deactivate()
823 		depopulate_section_memmap(pfn, nr_pages, altmap);  in section_deactivate()
831 static struct page * __meminit section_activate(int nid, unsigned long pfn,  in section_activate()  argument
835 	struct mem_section *ms = __pfn_to_section(pfn);  in section_activate()
847 	rc = fill_subsection_map(pfn, nr_pages);  in section_activate()
863 		return pfn_to_page(pfn);  in section_activate()
865 	memmap = populate_section_memmap(pfn, nr_pages, nid, altmap, pgmap);  in section_activate()
867 		section_deactivate(pfn, nr_pages, altmap);  in section_activate()
929 void sparse_remove_section(unsigned long pfn, unsigned long nr_pages,  in sparse_remove_section()  argument
932 	struct mem_section *ms = __pfn_to_section(pfn);  in sparse_remove_section()
937 	section_deactivate(pfn, nr_pages, altmap);  in sparse_remove_section()