Lines Matching refs:pfn
185 static void subsection_mask_set(unsigned long *map, unsigned long pfn, in subsection_mask_set() argument
188 int idx = subsection_map_index(pfn); in subsection_mask_set()
189 int end = subsection_map_index(pfn + nr_pages - 1); in subsection_mask_set()
194 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages) in subsection_map_init() argument
196 int end_sec = pfn_to_section_nr(pfn + nr_pages - 1); in subsection_map_init()
197 unsigned long nr, start_sec = pfn_to_section_nr(pfn); in subsection_map_init()
207 - (pfn & ~PAGE_SECTION_MASK)); in subsection_map_init()
209 subsection_mask_set(ms->usage->subsection_map, pfn, pfns); in subsection_map_init()
212 pfns, subsection_map_index(pfn), in subsection_map_init()
213 subsection_map_index(pfn + pfns - 1)); in subsection_map_init()
215 pfn += pfns; in subsection_map_init()
220 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages) in subsection_map_init() argument
228 unsigned long pfn; in memory_present() local
245 for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) { in memory_present()
246 unsigned long section = pfn_to_section_nr(pfn); in memory_present()
429 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()
594 unsigned long pfn; in online_mem_sections() local
596 for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) { in online_mem_sections()
597 unsigned long section_nr = pfn_to_section_nr(pfn); in online_mem_sections()
612 unsigned long pfn; in offline_mem_sections() local
614 for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) { in offline_mem_sections()
615 unsigned long section_nr = pfn_to_section_nr(pfn); in offline_mem_sections()
631 static struct page * __meminit populate_section_memmap(unsigned long pfn, in populate_section_memmap() argument
634 return __populate_section_memmap(pfn, nr_pages, nid, altmap); in populate_section_memmap()
637 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages, in depopulate_section_memmap() argument
640 unsigned long start = (unsigned long) pfn_to_page(pfn); in depopulate_section_memmap()
653 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages) in clear_subsection_map() argument
657 struct mem_section *ms = __pfn_to_section(pfn); in clear_subsection_map()
661 subsection_mask_set(map, pfn, nr_pages); in clear_subsection_map()
667 pfn, nr_pages)) in clear_subsection_map()
680 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages) in fill_subsection_map() argument
682 struct mem_section *ms = __pfn_to_section(pfn); in fill_subsection_map()
687 subsection_mask_set(map, pfn, nr_pages); in fill_subsection_map()
702 struct page * __meminit populate_section_memmap(unsigned long pfn, in populate_section_memmap() argument
709 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages, in depopulate_section_memmap() argument
712 kvfree(pfn_to_page(pfn)); in depopulate_section_memmap()
745 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages) in clear_subsection_map() argument
755 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages) in fill_subsection_map() argument
777 static void section_deactivate(unsigned long pfn, unsigned long nr_pages, in section_deactivate() argument
780 struct mem_section *ms = __pfn_to_section(pfn); in section_deactivate()
785 if (clear_subsection_map(pfn, nr_pages)) in section_deactivate()
790 unsigned long section_nr = pfn_to_section_nr(pfn); in section_deactivate()
817 depopulate_section_memmap(pfn, nr_pages, altmap); in section_deactivate()
825 static struct page * __meminit section_activate(int nid, unsigned long pfn, in section_activate() argument
828 struct mem_section *ms = __pfn_to_section(pfn); in section_activate()
840 rc = fill_subsection_map(pfn, nr_pages); in section_activate()
856 return pfn_to_page(pfn); in section_activate()
858 memmap = populate_section_memmap(pfn, nr_pages, nid, altmap); in section_activate()
860 section_deactivate(pfn, nr_pages, altmap); in section_activate()
946 void sparse_remove_section(struct mem_section *ms, unsigned long pfn, in sparse_remove_section() argument
950 clear_hwpoisoned_pages(pfn_to_page(pfn) + map_offset, in sparse_remove_section()
952 section_deactivate(pfn, nr_pages, altmap); in sparse_remove_section()