max_possible_pfn 44 arch/x86/kernel/pci-swiotlb.c if (!no_iommu && max_possible_pfn > MAX_DMA32_PFN) max_possible_pfn 1071 arch/x86/kernel/setup.c max_possible_pfn = max_pfn; max_possible_pfn 298 drivers/acpi/numa.c max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1)); max_possible_pfn 1329 drivers/xen/grant-table.c return !!(max_possible_pfn >> 32); max_possible_pfn 26 include/linux/memblock.h extern unsigned long long max_possible_pfn; max_possible_pfn 106 mm/memblock.c unsigned long long max_possible_pfn;