max_low_pfn 763 arch/alpha/kernel/core_cia.c } else if (max_low_pfn > (0x100000000UL >> PAGE_SHIFT)) { max_low_pfn 204 arch/alpha/kernel/core_irongate.c unsigned long memtop = max_low_pfn << PAGE_SHIFT; max_low_pfn 52 arch/alpha/kernel/pci_iommu.c unsigned long mem = max_low_pfn << PAGE_SHIFT; max_low_pfn 833 arch/alpha/kernel/pci_iommu.c __direct_map_base + (max_low_pfn << PAGE_SHIFT) - 1 <= mask)) max_low_pfn 336 arch/alpha/kernel/setup.c if (end > max_low_pfn) max_low_pfn 337 arch/alpha/kernel/setup.c max_low_pfn = end; max_low_pfn 361 arch/alpha/kernel/setup.c if (mem_size_limit && max_low_pfn >= mem_size_limit) max_low_pfn 365 arch/alpha/kernel/setup.c max_low_pfn << (PAGE_SHIFT - 10)); max_low_pfn 366 arch/alpha/kernel/setup.c max_low_pfn = mem_size_limit; max_low_pfn 380 arch/alpha/kernel/setup.c if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) { max_low_pfn 381 arch/alpha/kernel/setup.c if (!move_initrd(PFN_PHYS(max_low_pfn))) max_low_pfn 385 arch/alpha/kernel/setup.c phys_to_virt(PFN_PHYS(max_low_pfn))); max_low_pfn 1256 arch/alpha/kernel/setup.c if (maxsize > (max_low_pfn + 1) << PAGE_SHIFT) max_low_pfn 1257 arch/alpha/kernel/setup.c maxsize = 1 << (ilog2(max_low_pfn + 1) + PAGE_SHIFT); max_low_pfn 213 arch/alpha/kernel/sys_nautilus.c unsigned long memtop = max_low_pfn << PAGE_SHIFT; max_low_pfn 246 arch/alpha/mm/init.c high_pfn = max_pfn = max_low_pfn; max_low_pfn 283 arch/alpha/mm/init.c set_max_mapnr(max_low_pfn); max_low_pfn 284 arch/alpha/mm/init.c high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); max_low_pfn 128 arch/alpha/mm/numa.c if (node_max_pfn > max_low_pfn) max_low_pfn 129 arch/alpha/mm/numa.c max_pfn = max_low_pfn = node_max_pfn; max_low_pfn 172 arch/alpha/mm/numa.c max_low_pfn = 0UL; max_low_pfn 188 arch/alpha/mm/numa.c if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) { max_low_pfn 189 arch/alpha/mm/numa.c if (!move_initrd(PFN_PHYS(max_low_pfn))) max_low_pfn 193 arch/alpha/mm/numa.c phys_to_virt(PFN_PHYS(max_low_pfn))); max_low_pfn 98 arch/arc/mm/init.c max_low_pfn = max_pfn = PFN_DOWN(low_mem_start + low_mem_sz); max_low_pfn 102 arch/arc/mm/init.c max_mapnr = max_low_pfn - min_low_pfn; max_low_pfn 139 arch/arc/mm/init.c zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn; max_low_pfn 977 arch/arm/kernel/setup.c total = max_low_pfn - min_low_pfn; max_low_pfn 291 arch/arm/mm/init.c find_limits(&min_low_pfn, &max_low_pfn, &max_pfn); max_low_pfn 294 arch/arm/mm/init.c (phys_addr_t)max_low_pfn << PAGE_SHIFT); max_low_pfn 312 arch/arm/mm/init.c zone_sizes_init(min_low_pfn, max_low_pfn, max_pfn); max_low_pfn 417 arch/arm/mm/init.c unsigned long max_low = max_low_pfn; max_low_pfn 445 arch/arm64/mm/init.c max_pfn = max_low_pfn = max; max_low_pfn 380 arch/c6x/kernel/setup.c max_low_pfn = PFN_DOWN(memory_end); max_low_pfn 382 arch/c6x/kernel/setup.c max_pfn = max_low_pfn; max_low_pfn 383 arch/c6x/kernel/setup.c max_mapnr = max_low_pfn - min_low_pfn; max_low_pfn 45 arch/csky/kernel/setup.c max_low_pfn = max_pfn = PFN_DOWN(memblock_end_of_DRAM()); max_low_pfn 54 arch/csky/kernel/setup.c max_low_pfn = min_low_pfn + zone_size[ZONE_NORMAL]; max_low_pfn 58 arch/csky/kernel/setup.c max_low_pfn = min_low_pfn + zone_size[ZONE_NORMAL]; max_low_pfn 63 arch/csky/kernel/setup.c zone_size[ZONE_HIGHMEM] = max_pfn - max_low_pfn; max_low_pfn 65 arch/csky/kernel/setup.c highstart_pfn = max_low_pfn; max_low_pfn 68 arch/csky/kernel/setup.c memblock_set_current_limit(PFN_PHYS(max_low_pfn)); max_low_pfn 46 arch/csky/mm/init.c max_mapnr = max_low_pfn; max_low_pfn 48 arch/csky/mm/init.c high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); max_low_pfn 88 arch/h8300/kernel/setup.c max_low_pfn = PFN_DOWN(memblock_end_of_DRAM()); max_low_pfn 89 arch/h8300/kernel/setup.c max_pfn = max_low_pfn; max_low_pfn 37 arch/hexagon/kernel/dma.c (unsigned long)pfn_to_virt(max_low_pfn), max_low_pfn 104 arch/hexagon/mm/init.c zones_sizes[ZONE_NORMAL] = max_low_pfn; max_low_pfn 171 arch/hexagon/mm/init.c max_low_pfn = bootmem_lastpg - PFN_DOWN(DMA_RESERVED_BYTES); max_low_pfn 173 arch/hexagon/mm/init.c memblock_reserve(PFN_PHYS(max_low_pfn), DMA_RESERVED_BYTES); max_low_pfn 178 arch/hexagon/mm/init.c printk(KERN_INFO "max_low_pfn: 0x%08lx\n", max_low_pfn); max_low_pfn 121 arch/ia64/include/asm/page.h extern unsigned long max_low_pfn; max_low_pfn 122 arch/ia64/include/asm/page.h # define pfn_valid(pfn) (((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn) && ia64_pfn_valid(pfn)) max_low_pfn 11 arch/ia64/kernel/ia64_ksyms.c EXPORT_SYMBOL(max_low_pfn); /* defined by bootmem.c, but not exported by generic code */ max_low_pfn 156 arch/ia64/mm/contig.c max_low_pfn = 0; max_low_pfn 158 arch/ia64/mm/contig.c max_pfn = max_low_pfn; max_low_pfn 163 arch/ia64/mm/contig.c memblock_add_node(0, PFN_PHYS(max_low_pfn), 0); max_low_pfn 186 arch/ia64/mm/contig.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 197 arch/ia64/mm/contig.c map_size = PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) * max_low_pfn 500 arch/ia64/mm/discontig.c max_low_pfn = 0; max_low_pfn 515 arch/ia64/mm/discontig.c max_pfn = max_low_pfn; max_low_pfn 608 arch/ia64/mm/discontig.c VMALLOC_END -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) * max_low_pfn 602 arch/ia64/mm/init.c max_low_pfn = max(max_low_pfn, pfn_end); max_low_pfn 651 arch/ia64/mm/init.c set_max_mapnr(max_low_pfn); max_low_pfn 652 arch/ia64/mm/init.c high_memory = __va(max_low_pfn * PAGE_SIZE); max_low_pfn 158 arch/m68k/kernel/setup_no.c max_pfn = max_low_pfn = PFN_DOWN(memory_end); max_low_pfn 175 arch/m68k/mm/mcfmmu.c max_pfn = max_low_pfn = PFN_DOWN(_ramend); max_low_pfn 263 arch/m68k/mm/motorola.c max_pfn = max_low_pfn = max_addr >> PAGE_SHIFT; max_low_pfn 133 arch/microblaze/include/asm/page.h extern unsigned long max_low_pfn; max_low_pfn 74 arch/microblaze/mm/init.c for (pfn = max_low_pfn; pfn < max_pfn; ++pfn) { max_low_pfn 104 arch/microblaze/mm/init.c zones_size[ZONE_DMA] = max_low_pfn; max_low_pfn 164 arch/microblaze/mm/init.c max_low_pfn = ((u64)memory_start + (u64)lowmem_size) >> PAGE_SHIFT; max_low_pfn 169 arch/microblaze/mm/init.c pr_info("%s: max_low_pfn: %#lx\n", __func__, max_low_pfn); max_low_pfn 223 arch/microblaze/mm/init.c return pfn < max_low_pfn; max_low_pfn 254 arch/mips/kernel/setup.c if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) { max_low_pfn 354 arch/mips/kernel/setup.c if (end > max_low_pfn) max_low_pfn 355 arch/mips/kernel/setup.c max_low_pfn = end; max_low_pfn 358 arch/mips/kernel/setup.c if (min_low_pfn >= max_low_pfn) max_low_pfn 366 arch/mips/kernel/setup.c max_low_pfn = PFN_DOWN(HIGHMEM_START); max_low_pfn 367 arch/mips/kernel/setup.c max_pfn = max_low_pfn; max_low_pfn 639 arch/mips/kernel/setup.c memblock_set_current_limit(PFN_PHYS(max_low_pfn)); max_low_pfn 659 arch/mips/kernel/setup.c dma_contiguous_reserve(PFN_PHYS(max_low_pfn)); max_low_pfn 669 arch/mips/kernel/setup.c early_memtest(PFN_PHYS(ARCH_PFN_OFFSET), PFN_PHYS(max_low_pfn)); max_low_pfn 151 arch/mips/kernel/vpe.c addr = pfn_to_kaddr(max_low_pfn); max_low_pfn 193 arch/mips/loongson64/loongson-3/numa.c max_low_pfn = end_pfn; max_low_pfn 221 arch/mips/loongson64/loongson-3/numa.c max_low_pfn = PHYS_PFN(memblock_end_of_DRAM()); max_low_pfn 246 arch/mips/loongson64/loongson-3/numa.c zones_size[ZONE_NORMAL] = max_low_pfn; max_low_pfn 409 arch/mips/mm/init.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 413 arch/mips/mm/init.c if (cpu_has_dc_aliases && max_low_pfn != highend_pfn) { max_low_pfn 416 arch/mips/mm/init.c (highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10)); max_low_pfn 417 arch/mips/mm/init.c max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn; max_low_pfn 459 arch/mips/mm/init.c max_mapnr = highend_pfn ? highend_pfn : max_low_pfn; max_low_pfn 461 arch/mips/mm/init.c max_mapnr = max_low_pfn; max_low_pfn 463 arch/mips/mm/init.c high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); max_low_pfn 434 arch/mips/sgi-ip27/ip27-memory.c max_low_pfn = PHYS_PFN(memblock_end_of_DRAM()); max_low_pfn 457 arch/mips/sgi-ip27/ip27-memory.c zones_size[ZONE_NORMAL] = max_low_pfn; max_low_pfn 269 arch/nds32/kernel/setup.c max_low_pfn = max_pfn; max_low_pfn 271 arch/nds32/kernel/setup.c max_low_pfn = MAXMEM_PFN + ram_start_pfn; max_low_pfn 276 arch/nds32/kernel/setup.c high_memory = (void *)__va(max_low_pfn * PAGE_SIZE); max_low_pfn 39 arch/nds32/mm/init.c zones_size[ZONE_NORMAL] = max_low_pfn; max_low_pfn 165 arch/nios2/kernel/setup.c max_low_pfn = PFN_DOWN(memory_end); max_low_pfn 166 arch/nios2/kernel/setup.c max_mapnr = max_low_pfn; max_low_pfn 73 arch/openrisc/kernel/setup.c max_low_pfn = ram_end_pfn; max_low_pfn 56 arch/openrisc/mm/init.c zones_size[ZONE_NORMAL] = max_low_pfn; max_low_pfn 149 arch/openrisc/mm/init.c end = (unsigned long)__va(max_low_pfn * PAGE_SIZE); max_low_pfn 206 arch/openrisc/mm/init.c max_mapnr = max_low_pfn; max_low_pfn 207 arch/openrisc/mm/init.c high_memory = (void *)__va(max_low_pfn * PAGE_SIZE); max_low_pfn 286 arch/parisc/mm/init.c max_low_pfn = max_pfn; max_low_pfn 591 arch/parisc/mm/init.c set_max_mapnr(max_low_pfn); max_low_pfn 930 arch/powerpc/kernel/setup-common.c early_memtest(min_low_pfn << PAGE_SHIFT, max_low_pfn << PAGE_SHIFT); max_low_pfn 179 arch/powerpc/mm/mem.c max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; max_low_pfn 182 arch/powerpc/mm/mem.c max_low_pfn = lowmem_end_addr >> PAGE_SHIFT; max_low_pfn 263 arch/powerpc/mm/mem.c max_zone_pfns[ZONE_DMA] = min(max_low_pfn, max_low_pfn 266 arch/powerpc/mm/mem.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 296 arch/powerpc/mm/mem.c high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); max_low_pfn 885 arch/powerpc/mm/numa.c max_low_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; max_low_pfn 886 arch/powerpc/mm/numa.c max_pfn = max_low_pfn; max_low_pfn 94 arch/riscv/include/asm/page.h extern unsigned long max_low_pfn; max_low_pfn 36 arch/riscv/mm/init.c (unsigned long) PFN_PHYS(max_low_pfn))); max_low_pfn 38 arch/riscv/mm/init.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 54 arch/riscv/mm/init.c high_memory = (void *)(__va(PFN_PHYS(max_low_pfn))); max_low_pfn 69 arch/riscv/mm/init.c if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) { max_low_pfn 120 arch/riscv/mm/init.c max_low_pfn = max_pfn; max_low_pfn 599 arch/s390/kernel/setup.c max_pfn = max_low_pfn = PFN_DOWN(memory_end); max_low_pfn 123 arch/s390/mm/init.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 181 arch/s390/mm/init.c set_max_mapnr(max_low_pfn); max_low_pfn 182 arch/s390/mm/init.c high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); max_low_pfn 52 arch/sh/include/asm/page.h extern unsigned long max_low_pfn, min_low_pfn; max_low_pfn 181 arch/sh/include/asm/page.h #define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) max_low_pfn 27 arch/sh/kernel/sh_ksyms_32.c EXPORT_SYMBOL(max_low_pfn); max_low_pfn 302 arch/sh/mm/init.c max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; max_low_pfn 336 arch/sh/mm/init.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 69 arch/sparc/mm/init_32.c if (end_pfn <= max_low_pfn) max_low_pfn 72 arch/sparc/mm/init_32.c if (start_pfn < max_low_pfn) max_low_pfn 73 arch/sparc/mm/init_32.c start_pfn = max_low_pfn; max_low_pfn 180 arch/sparc/mm/init_32.c max_low_pfn = max_pfn; max_low_pfn 183 arch/sparc/mm/init_32.c if (max_low_pfn > pfn_base + (SRMMU_MAXMEM >> PAGE_SHIFT)) { max_low_pfn 185 arch/sparc/mm/init_32.c max_low_pfn = calc_max_low_pfn(); max_low_pfn 277 arch/sparc/mm/init_32.c high_memory = __va(max_low_pfn << PAGE_SHIFT); max_low_pfn 1631 arch/sparc/mm/init_64.c max_pfn = max_low_pfn = end_pfn; max_low_pfn 990 arch/sparc/mm/srmmu.c npages = max_low_pfn - pfn_base; max_low_pfn 995 arch/sparc/mm/srmmu.c npages = highend_pfn - max_low_pfn; max_low_pfn 55 arch/um/kernel/mem.c max_low_pfn = totalram_pages(); max_low_pfn 56 arch/um/kernel/mem.c max_pfn = max_low_pfn; max_low_pfn 115 arch/um/kernel/physmem.c max_low_pfn = min_low_pfn + (map_size >> PAGE_SHIFT); max_low_pfn 87 arch/unicore32/kernel/hibernate.c if (pfn >= max_low_pfn) max_low_pfn 93 arch/unicore32/kernel/hibernate.c if (pfn >= max_low_pfn) max_low_pfn 105 arch/unicore32/kernel/hibernate.c if (pfn >= max_low_pfn) max_low_pfn 195 arch/unicore32/mm/init.c max_low_pfn = max_low - PHYS_PFN_OFFSET; max_low_pfn 1095 arch/x86/kernel/setup.c max_low_pfn = e820__end_of_low_ram_pfn(); max_low_pfn 1097 arch/x86/kernel/setup.c max_low_pfn = max_pfn; max_low_pfn 288 arch/x86/mm/fault.c return pfn < max_low_pfn; max_low_pfn 293 arch/x86/mm/init.c if ((end >> PAGE_SHIFT) > max_low_pfn) max_low_pfn 660 arch/x86/mm/init.c end = max_low_pfn << PAGE_SHIFT; max_low_pfn 690 arch/x86/mm/init.c if (max_pfn > max_low_pfn) { max_low_pfn 692 arch/x86/mm/init.c max_low_pfn = max_pfn; max_low_pfn 941 arch/x86/mm/init.c max_zone_pfns[ZONE_DMA] = min(MAX_DMA_PFN, max_low_pfn); max_low_pfn 944 arch/x86/mm/init.c max_zone_pfns[ZONE_DMA32] = min(MAX_DMA32_PFN, max_low_pfn); max_low_pfn 946 arch/x86/mm/init.c max_zone_pfns[ZONE_NORMAL] = max_low_pfn; max_low_pfn 489 arch/x86/mm/init_32.c for (pfn = max_low_pfn; pfn < 1<<(32-PAGE_SHIFT); pfn++) { max_low_pfn 601 arch/x86/mm/init_32.c max_low_pfn = max_pfn; max_low_pfn 612 arch/x86/mm/init_32.c if (max_low_pfn - highmem_pages < 64*1024*1024/PAGE_SIZE) { max_low_pfn 617 arch/x86/mm/init_32.c max_low_pfn -= highmem_pages; max_low_pfn 636 arch/x86/mm/init_32.c max_low_pfn = MAXMEM_PFN; max_low_pfn 686 arch/x86/mm/init_32.c if (max_pfn > max_low_pfn) max_low_pfn 687 arch/x86/mm/init_32.c highstart_pfn = max_low_pfn; max_low_pfn 692 arch/x86/mm/init_32.c high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; max_low_pfn 699 arch/x86/mm/init_32.c max_mapnr = IS_ENABLED(CONFIG_HIGHMEM) ? highend_pfn : max_low_pfn; max_low_pfn 704 arch/x86/mm/init_32.c pages_to_mb(max_low_pfn)); max_low_pfn 714 arch/x86/mm/init_32.c printk(KERN_INFO " low ram: 0 - %08lx\n", max_low_pfn<<PAGE_SHIFT); max_low_pfn 841 arch/x86/mm/init_64.c max_low_pfn = end_pfn; max_low_pfn 72 arch/x86/mm/numa_32.c if (max_pfn > max_low_pfn) max_low_pfn 73 arch/x86/mm/numa_32.c highstart_pfn = max_low_pfn; max_low_pfn 78 arch/x86/mm/numa_32.c high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; max_low_pfn 81 arch/x86/mm/numa_32.c pages_to_mb(max_low_pfn)); max_low_pfn 83 arch/x86/mm/numa_32.c max_low_pfn, highstart_pfn); max_low_pfn 86 arch/x86/mm/numa_32.c (ulong) pfn_to_kaddr(max_low_pfn)); max_low_pfn 78 arch/x86/mm/physaddr.c if (max_low_pfn) { max_low_pfn 79 arch/x86/mm/physaddr.c VIRTUAL_BUG_ON((phys_addr >> PAGE_SHIFT) > max_low_pfn); max_low_pfn 98 arch/x86/power/hibernate_32.c if (pfn >= max_low_pfn) max_low_pfn 102 arch/x86/power/hibernate_32.c if (pfn >= max_low_pfn) max_low_pfn 121 arch/x86/power/hibernate_32.c if (pfn >= max_low_pfn) max_low_pfn 58 arch/xtensa/mm/init.c max_low_pfn = min(max_pfn, MAX_LOW_PFN); max_low_pfn 61 arch/xtensa/mm/init.c (phys_addr_t)max_low_pfn << PAGE_SHIFT); max_low_pfn 63 arch/xtensa/mm/init.c memblock_set_current_limit(PFN_PHYS(max_low_pfn)); max_low_pfn 64 arch/xtensa/mm/init.c dma_contiguous_reserve(PFN_PHYS(max_low_pfn)); max_low_pfn 74 arch/xtensa/mm/init.c [ZONE_NORMAL] = max_low_pfn - ARCH_PFN_OFFSET, max_low_pfn 76 arch/xtensa/mm/init.c [ZONE_HIGHMEM] = max_pfn - max_low_pfn, max_low_pfn 91 arch/xtensa/mm/init.c unsigned long max_low = max_low_pfn; max_low_pfn 153 arch/xtensa/mm/init.c high_memory = (void *)__va(max_low_pfn << PAGE_SHIFT); max_low_pfn 189 arch/xtensa/mm/init.c (max_low_pfn - min_low_pfn) * PAGE_SIZE, max_low_pfn 191 arch/xtensa/mm/init.c min_low_pfn * PAGE_SIZE, max_low_pfn * PAGE_SIZE, max_low_pfn 193 arch/xtensa/mm/init.c ((max_low_pfn - min_low_pfn) * PAGE_SIZE) >> 20, max_low_pfn 150 block/blk-settings.c q->limits.bounce_pfn = max(max_low_pfn, b_pfn); max_low_pfn 879 block/blk-settings.c blk_max_low_pfn = max_low_pfn - 1; max_low_pfn 57 block/bounce.c if (max_pfn <= max_low_pfn) max_low_pfn 134 fs/proc/kcore.c ent->size = max_low_pfn << PAGE_SHIFT; max_low_pfn 16 include/linux/memblock.h extern unsigned long max_low_pfn; max_low_pfn 2183 include/linux/mm.h unsigned long max_low_pfn); max_low_pfn 1121 mm/kmemleak.c if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn) max_low_pfn 1135 mm/kmemleak.c if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn) max_low_pfn 1147 mm/kmemleak.c if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn) max_low_pfn 1159 mm/kmemleak.c if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn) max_low_pfn 103 mm/memblock.c unsigned long max_low_pfn; max_low_pfn 1913 mm/memblock.c PFN_DOWN(end), max_low_pfn); max_low_pfn 6264 mm/page_alloc.c void __init free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn) max_low_pfn 6270 mm/page_alloc.c start_pfn = min(start_pfn, max_low_pfn); max_low_pfn 6271 mm/page_alloc.c end_pfn = min(end_pfn, max_low_pfn);