x86, memblock: Replace e820_/_early string with memblock_

1.include linux/memblock.h directly. so later could reduce e820.h reference.
2 this patch is done by sed scripts mainly

-v2: use MEMBLOCK_ERROR instead of -1ULL or -1UL

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

20 files changed, 105 insertions, 92 deletions

diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 8406ed7f9926..8e4a16508d4e 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -90,7 +90,7 @@ extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
 #endif /* CONFIG_X86_32 */
 
 extern int add_efi_memmap;
-extern void efi_reserve_early(void);
+extern void efi_memblock_x86_reserve_range(void);
 extern void efi_call_phys_prelog(void);
 extern void efi_call_phys_epilog(void);
 
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index fcc3c61fdecc..d829e75f9687 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -7,6 +7,7 @@
 
 #include <linux/acpi.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dmi.h>
 #include <linux/cpumask.h>
 #include <asm/segment.h>
@@ -125,7 +126,7 @@ void acpi_restore_state_mem(void)
  */
 void __init acpi_reserve_wakeup_memory(void)
 {
-        unsigned long mem;
+        phys_addr_t mem;
 
         if ((&wakeup_code_end - &wakeup_code_start) > WAKEUP_SIZE) {
                 printk(KERN_ERR
@@ -133,15 +134,15 @@ void __init acpi_reserve_wakeup_memory(void)
                 return;
         }
 
-        mem = find_e820_area(0, 1<<20, WAKEUP_SIZE, PAGE_SIZE);
+        mem = memblock_find_in_range(0, 1<<20, WAKEUP_SIZE, PAGE_SIZE);
 
-        if (mem == -1L) {
+        if (mem == MEMBLOCK_ERROR) {
                 printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
                 return;
         }
         acpi_realmode = (unsigned long) phys_to_virt(mem);
         acpi_wakeup_address = mem;
-        reserve_early(mem, mem + WAKEUP_SIZE, "ACPI WAKEUP");
+        memblock_x86_reserve_range(mem, mem + WAKEUP_SIZE, "ACPI WAKEUP");
 }
 
 
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index 3e28401f161c..960f26ab5c9f 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -26,6 +26,7 @@
 #include <linux/nodemask.h>
 #include <linux/topology.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/kernel.h>
@@ -88,7 +89,7 @@ static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
         node_end_pfn[node] =
                  MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
 
-        e820_register_active_regions(node, node_start_pfn[node],
+        memblock_x86_register_active_regions(node, node_start_pfn[node],
                                                 node_end_pfn[node]);
 
         memory_present(node, node_start_pfn[node], node_end_pfn[node]);
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index c2fa9b8b497e..0fe27d7c6258 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -30,6 +30,7 @@
 #include <linux/init.h>
 #include <linux/efi.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
 #include <linux/time.h>
@@ -275,7 +276,7 @@ static void __init do_add_efi_memmap(void)
         sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 }
 
-void __init efi_reserve_early(void)
+void __init efi_memblock_x86_reserve_range(void)
 {
         unsigned long pmap;
 
@@ -290,7 +291,7 @@ void __init efi_reserve_early(void)
                 boot_params.efi_info.efi_memdesc_size;
         memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
         memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
-        reserve_early(pmap, pmap + memmap.nr_map * memmap.desc_size,
+        memblock_x86_reserve_range(pmap, pmap + memmap.nr_map * memmap.desc_size,
                       "EFI memmap");
 }
 
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index da60aa8a850f..74e4cf65043e 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -42,7 +42,7 @@ void __init i386_start_kernel(void)
         memblock_x86_reserve_range(PAGE_SIZE, PAGE_SIZE + PAGE_SIZE, "EX TRAMPOLINE");
 #endif
 
-        reserve_early(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
+        memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
 
 #ifdef CONFIG_BLK_DEV_INITRD
         /* Reserve INITRD */
@@ -51,7 +51,7 @@ void __init i386_start_kernel(void)
                 u64 ramdisk_image = boot_params.hdr.ramdisk_image;
                 u64 ramdisk_size  = boot_params.hdr.ramdisk_size;
                 u64 ramdisk_end   = PAGE_ALIGN(ramdisk_image + ramdisk_size);
-                reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
+                memblock_x86_reserve_range(ramdisk_image, ramdisk_end, "RAMDISK");
         }
 #endif
 
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 8ee930fdeeb9..97adf9828b95 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -101,7 +101,7 @@ void __init x86_64_start_reservations(char *real_mode_data)
 
         memblock_init();
 
-        reserve_early(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
+        memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
 
 #ifdef CONFIG_BLK_DEV_INITRD
         /* Reserve INITRD */
@@ -110,7 +110,7 @@ void __init x86_64_start_reservations(char *real_mode_data)
                 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
                 unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
                 unsigned long ramdisk_end   = PAGE_ALIGN(ramdisk_image + ramdisk_size);
-                reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
+                memblock_x86_reserve_range(ramdisk_image, ramdisk_end, "RAMDISK");
         }
 #endif
 
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index bbe0aaf77494..a4f01733e879 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -302,7 +302,7 @@ static inline void init_gbpages(void)
 static void __init reserve_brk(void)
 {
         if (_brk_end > _brk_start)
-                reserve_early(__pa(_brk_start), __pa(_brk_end), "BRK");
+                memblock_x86_reserve_range(__pa(_brk_start), __pa(_brk_end), "BRK");
 
         /* Mark brk area as locked down and no longer taking any
            new allocations */
@@ -324,17 +324,16 @@ static void __init relocate_initrd(void)
         char *p, *q;
 
         /* We need to move the initrd down into lowmem */
-        ramdisk_here = find_e820_area(0, end_of_lowmem, area_size,
+        ramdisk_here = memblock_find_in_range(0, end_of_lowmem, area_size,
                                          PAGE_SIZE);
 
-        if (ramdisk_here == -1ULL)
+        if (ramdisk_here == MEMBLOCK_ERROR)
                 panic("Cannot find place for new RAMDISK of size %lld\n",
                          ramdisk_size);
 
         /* Note: this includes all the lowmem currently occupied by
            the initrd, we rely on that fact to keep the data intact. */
-        reserve_early(ramdisk_here, ramdisk_here + area_size,
-                         "NEW RAMDISK");
+        memblock_x86_reserve_range(ramdisk_here, ramdisk_here + area_size, "NEW RAMDISK");
         initrd_start = ramdisk_here + PAGE_OFFSET;
         initrd_end   = initrd_start + ramdisk_size;
         printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
@@ -390,7 +389,7 @@ static void __init reserve_initrd(void)
         initrd_start = 0;
 
         if (ramdisk_size >= (end_of_lowmem>>1)) {
-                free_early(ramdisk_image, ramdisk_end);
+                memblock_x86_free_range(ramdisk_image, ramdisk_end);
                 printk(KERN_ERR "initrd too large to handle, "
                        "disabling initrd\n");
                 return;
@@ -413,7 +412,7 @@ static void __init reserve_initrd(void)
 
         relocate_initrd();
 
-        free_early(ramdisk_image, ramdisk_end);
+        memblock_x86_free_range(ramdisk_image, ramdisk_end);
 }
 #else
 static void __init reserve_initrd(void)
@@ -469,7 +468,7 @@ static void __init e820_reserve_setup_data(void)
         e820_print_map("reserve setup_data");
 }
 
-static void __init reserve_early_setup_data(void)
+static void __init memblock_x86_reserve_range_setup_data(void)
 {
         struct setup_data *data;
         u64 pa_data;
@@ -481,7 +480,7 @@ static void __init reserve_early_setup_data(void)
         while (pa_data) {
                 data = early_memremap(pa_data, sizeof(*data));
                 sprintf(buf, "setup data %x", data->type);
-                reserve_early(pa_data, pa_data+sizeof(*data)+data->len, buf);
+                memblock_x86_reserve_range(pa_data, pa_data+sizeof(*data)+data->len, buf);
                 pa_data = data->next;
                 early_iounmap(data, sizeof(*data));
         }
@@ -519,23 +518,23 @@ static void __init reserve_crashkernel(void)
         if (crash_base <= 0) {
                 const unsigned long long alignment = 16<<20;    /* 16M */
 
-                crash_base = find_e820_area(alignment, ULONG_MAX, crash_size,
+                crash_base = memblock_find_in_range(alignment, ULONG_MAX, crash_size,
                                  alignment);
-                if (crash_base == -1ULL) {
+                if (crash_base == MEMBLOCK_ERROR) {
                         pr_info("crashkernel reservation failed - No suitable area found.\n");
                         return;
                 }
         } else {
                 unsigned long long start;
 
-                start = find_e820_area(crash_base, ULONG_MAX, crash_size,
+                start = memblock_find_in_range(crash_base, ULONG_MAX, crash_size,
                                  1<<20);
                 if (start != crash_base) {
                         pr_info("crashkernel reservation failed - memory is in use.\n");
                         return;
                 }
         }
-        reserve_early(crash_base, crash_base + crash_size, "CRASH KERNEL");
+        memblock_x86_reserve_range(crash_base, crash_base + crash_size, "CRASH KERNEL");
 
         printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
                         "for crashkernel (System RAM: %ldMB)\n",
@@ -786,7 +785,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
          4)) {
                 efi_enabled = 1;
-                efi_reserve_early();
+                efi_memblock_x86_reserve_range();
         }
 #endif
 
@@ -846,7 +845,7 @@ void __init setup_arch(char **cmdline_p)
         vmi_activate();
 
         /* after early param, so could get panic from serial */
-        reserve_early_setup_data();
+        memblock_x86_reserve_range_setup_data();
 
         if (acpi_mps_check()) {
 #ifdef CONFIG_X86_LOCAL_APIC
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index c652ef62742d..7c2102c2aadf 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -1,7 +1,7 @@
 #include <linux/io.h>
+#include <linux/memblock.h>
 
 #include <asm/trampoline.h>
-#include <asm/e820.h>
 
 #if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP)
 #define __trampinit
@@ -16,15 +16,15 @@ unsigned char *__trampinitdata trampoline_base;
 
 void __init reserve_trampoline_memory(void)
 {
-        unsigned long mem;
+        phys_addr_t mem;
 
         /* Has to be in very low memory so we can execute real-mode AP code. */
-        mem = find_e820_area(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE);
-        if (mem == -1L)
+        mem = memblock_find_in_range(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE);
+        if (mem == MEMBLOCK_ERROR)
                 panic("Cannot allocate trampoline\n");
 
         trampoline_base = __va(mem);
-        reserve_early(mem, mem + TRAMPOLINE_SIZE, "TRAMPOLINE");
+        memblock_x86_reserve_range(mem, mem + TRAMPOLINE_SIZE, "TRAMPOLINE");
 }
 
 /*
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index b278535b14aa..c0e28a13de7d 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -2,6 +2,7 @@
 #include <linux/initrd.h>
 #include <linux/ioport.h>
 #include <linux/swap.h>
+#include <linux/memblock.h>
 
 #include <asm/cacheflush.h>
 #include <asm/e820.h>
@@ -33,6 +34,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
                                           int use_gbpages)
 {
         unsigned long puds, pmds, ptes, tables, start;
+        phys_addr_t base;
 
         puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
         tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
@@ -75,12 +77,12 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
 #else
         start = 0x8000;
 #endif
-        e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
+        base = memblock_find_in_range(start, max_pfn_mapped<<PAGE_SHIFT,
                                         tables, PAGE_SIZE);
-        if (e820_table_start == -1UL)
+        if (base == MEMBLOCK_ERROR)
                 panic("Cannot find space for the kernel page tables");
 
-        e820_table_start >>= PAGE_SHIFT;
+        e820_table_start = base >> PAGE_SHIFT;
         e820_table_end = e820_table_start;
         e820_table_top = e820_table_start + (tables >> PAGE_SHIFT);
 
@@ -299,7 +301,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
         __flush_tlb_all();
 
         if (!after_bootmem && e820_table_end > e820_table_start)
-                reserve_early(e820_table_start << PAGE_SHIFT,
+                memblock_x86_reserve_range(e820_table_start << PAGE_SHIFT,
                                  e820_table_end << PAGE_SHIFT, "PGTABLE");
 
         if (!after_bootmem)
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 90e054589aae..63b09bae2509 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -25,6 +25,7 @@
 #include <linux/pfn.h>
 #include <linux/poison.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/memory_hotplug.h>
 #include <linux/initrd.h>
@@ -712,14 +713,14 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
         highstart_pfn = highend_pfn = max_pfn;
         if (max_pfn > max_low_pfn)
                 highstart_pfn = max_low_pfn;
-        e820_register_active_regions(0, 0, highend_pfn);
+        memblock_x86_register_active_regions(0, 0, highend_pfn);
         sparse_memory_present_with_active_regions(0);
         printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
                 pages_to_mb(highend_pfn - highstart_pfn));
         num_physpages = highend_pfn;
         high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
 #else
-        e820_register_active_regions(0, 0, max_low_pfn);
+        memblock_x86_register_active_regions(0, 0, max_low_pfn);
         sparse_memory_present_with_active_regions(0);
         num_physpages = max_low_pfn;
         high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
@@ -776,16 +777,16 @@ void __init setup_bootmem_allocator(void)
 {
 #ifndef CONFIG_NO_BOOTMEM
         int nodeid;
-        unsigned long bootmap_size, bootmap;
+        phys_addr_t bootmap_size, bootmap;
         /*
          * Initialize the boot-time allocator (with low memory only):
          */
         bootmap_size = bootmem_bootmap_pages(max_low_pfn)<<PAGE_SHIFT;
-        bootmap = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, bootmap_size,
+        bootmap = memblock_find_in_range(0, max_pfn_mapped<<PAGE_SHIFT, bootmap_size,
                                  PAGE_SIZE);
-        if (bootmap == -1L)
+        if (bootmap == MEMBLOCK_ERROR)
                 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
-        reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
+        memblock_x86_reserve_range(bootmap, bootmap + bootmap_size, "BOOTMAP");
 #endif
 
         printk(KERN_INFO "  mapped low ram: 0 - %08lx\n",
@@ -1069,3 +1070,4 @@ void mark_rodata_ro(void)
 #endif
 }
 #endif
+
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 634fa0884a41..592b2368062d 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -21,6 +21,7 @@
 #include <linux/initrd.h>
 #include <linux/pagemap.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/pci.h>
 #include <linux/pfn.h>
@@ -577,18 +578,18 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
         unsigned long bootmap_size, bootmap;
 
         bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
-        bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
+        bootmap = memblock_find_in_range(0, end_pfn<<PAGE_SHIFT, bootmap_size,
                                  PAGE_SIZE);
-        if (bootmap == -1L)
+        if (bootmap == MEMBLOCK_ERROR)
                 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
-        reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
+        memblock_x86_reserve_range(bootmap, bootmap + bootmap_size, "BOOTMAP");
         /* don't touch min_low_pfn */
         bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
                                          0, end_pfn);
-        e820_register_active_regions(0, start_pfn, end_pfn);
+        memblock_x86_register_active_regions(0, start_pfn, end_pfn);
         free_bootmem_with_active_regions(0, end_pfn);
 #else
-        e820_register_active_regions(0, start_pfn, end_pfn);
+        memblock_x86_register_active_regions(0, start_pfn, end_pfn);
 #endif
 }
 #endif
diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 970ed579d4e4..966de9372e8c 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -11,6 +11,8 @@
 #include <linux/string.h>
 #include <linux/module.h>
 #include <linux/nodemask.h>
+#include <linux/memblock.h>
+
 #include <asm/io.h>
 #include <linux/pci_ids.h>
 #include <linux/acpi.h>
@@ -222,7 +224,7 @@ int __init k8_scan_nodes(void)
         for_each_node_mask(i, node_possible_map) {
                 int j;
 
-                e820_register_active_regions(i,
+                memblock_x86_register_active_regions(i,
                                 nodes[i].start >> PAGE_SHIFT,
                                 nodes[i].end >> PAGE_SHIFT);
                 for (j = apicid_base; j < cores + apicid_base; j++)
diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c
index 18d244f70205..92faf3a1c53e 100644
--- a/arch/x86/mm/memtest.c
+++ b/arch/x86/mm/memtest.c
@@ -6,8 +6,7 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/pfn.h>
-
-#include <asm/e820.h>
+#include <linux/memblock.h>
 
 static u64 patterns[] __initdata = {
         0,
@@ -35,7 +34,7 @@ static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad)
                (unsigned long long) pattern,
                (unsigned long long) start_bad,
                (unsigned long long) end_bad);
-        reserve_early(start_bad, end_bad, "BAD RAM");
+        memblock_x86_reserve_range(start_bad, end_bad, "BAD RAM");
 }
 
 static void __init memtest(u64 pattern, u64 start_phys, u64 size)
@@ -74,7 +73,7 @@ static void __init do_one_pass(u64 pattern, u64 start, u64 end)
         u64 size = 0;
 
         while (start < end) {
-                start = find_e820_area_size(start, &size, 1);
+                start = memblock_x86_find_in_range_size(start, &size, 1);
 
                 /* done ? */
                 if (start >= end)
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 809baaaf48b1..ddf9730b2061 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -24,6 +24,7 @@
 
 #include <linux/mm.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/highmem.h>
 #include <linux/initrd.h>
@@ -120,7 +121,7 @@ int __init get_memcfg_numa_flat(void)
 
         node_start_pfn[0] = 0;
         node_end_pfn[0] = max_pfn;
-        e820_register_active_regions(0, 0, max_pfn);
+        memblock_x86_register_active_regions(0, 0, max_pfn);
         memory_present(0, 0, max_pfn);
         node_remap_size[0] = node_memmap_size_bytes(0, 0, max_pfn);
 
@@ -161,14 +162,14 @@ static void __init allocate_pgdat(int nid)
                 NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
         else {
                 unsigned long pgdat_phys;
-                pgdat_phys = find_e820_area(min_low_pfn<<PAGE_SHIFT,
+                pgdat_phys = memblock_find_in_range(min_low_pfn<<PAGE_SHIFT,
                                  max_pfn_mapped<<PAGE_SHIFT,
                                  sizeof(pg_data_t),
                                  PAGE_SIZE);
                 NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(pgdat_phys>>PAGE_SHIFT));
                 memset(buf, 0, sizeof(buf));
                 sprintf(buf, "NODE_DATA %d",  nid);
-                reserve_early(pgdat_phys, pgdat_phys + sizeof(pg_data_t), buf);
+                memblock_x86_reserve_range(pgdat_phys, pgdat_phys + sizeof(pg_data_t), buf);
         }
         printk(KERN_DEBUG "allocate_pgdat: node %d NODE_DATA %08lx\n",
                 nid, (unsigned long)NODE_DATA(nid));
@@ -291,15 +292,15 @@ static __init unsigned long calculate_numa_remap_pages(void)
                                                  PTRS_PER_PTE);
                 node_kva_target <<= PAGE_SHIFT;
                 do {
-                        node_kva_final = find_e820_area(node_kva_target,
+                        node_kva_final = memblock_find_in_range(node_kva_target,
                                         ((u64)node_end_pfn[nid])<<PAGE_SHIFT,
                                                 ((u64)size)<<PAGE_SHIFT,
                                                 LARGE_PAGE_BYTES);
                         node_kva_target -= LARGE_PAGE_BYTES;
-                } while (node_kva_final == -1ULL &&
+                } while (node_kva_final == MEMBLOCK_ERROR &&
                          (node_kva_target>>PAGE_SHIFT) > (node_start_pfn[nid]));
 
-                if (node_kva_final == -1ULL)
+                if (node_kva_final == MEMBLOCK_ERROR)
                         panic("Can not get kva ram\n");
 
                 node_remap_size[nid] = size;
@@ -318,9 +319,9 @@ static __init unsigned long calculate_numa_remap_pages(void)
                  *  but we could have some hole in high memory, and it will only
                  *  check page_is_ram(pfn) && !page_is_reserved_early(pfn) to decide
                  *  to use it as free.
-                 *  So reserve_early here, hope we don't run out of that array
+                 *  So memblock_x86_reserve_range here, hope we don't run out of that array
                  */
-                reserve_early(node_kva_final,
+                memblock_x86_reserve_range(node_kva_final,
                               node_kva_final+(((u64)size)<<PAGE_SHIFT),
                               "KVA RAM");
 
@@ -367,14 +368,14 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
 
         kva_target_pfn = round_down(max_low_pfn - kva_pages, PTRS_PER_PTE);
         do {
-                kva_start_pfn = find_e820_area(kva_target_pfn<<PAGE_SHIFT,
+                kva_start_pfn = memblock_find_in_range(kva_target_pfn<<PAGE_SHIFT,
                                         max_low_pfn<<PAGE_SHIFT,
                                         kva_pages<<PAGE_SHIFT,
                                         PTRS_PER_PTE<<PAGE_SHIFT) >> PAGE_SHIFT;
                 kva_target_pfn -= PTRS_PER_PTE;
-        } while (kva_start_pfn == -1UL && kva_target_pfn > min_low_pfn);
+        } while (kva_start_pfn == MEMBLOCK_ERROR && kva_target_pfn > min_low_pfn);
 
-        if (kva_start_pfn == -1UL)
+        if (kva_start_pfn == MEMBLOCK_ERROR)
                 panic("Can not get kva space\n");
 
         printk(KERN_INFO "kva_start_pfn ~ %lx max_low_pfn ~ %lx\n",
@@ -382,7 +383,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
         printk(KERN_INFO "max_pfn = %lx\n", max_pfn);
 
         /* avoid clash with initrd */
-        reserve_early(kva_start_pfn<<PAGE_SHIFT,
+        memblock_x86_reserve_range(kva_start_pfn<<PAGE_SHIFT,
                       (kva_start_pfn + kva_pages)<<PAGE_SHIFT,
                      "KVA PG");
 #ifdef CONFIG_HIGHMEM
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 3d54f9f95d46..984b1ff7db44 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -87,16 +87,16 @@ static int __init allocate_cachealigned_memnodemap(void)
 
         addr = 0x8000;
         nodemap_size = roundup(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
-        nodemap_addr = find_e820_area(addr, max_pfn<<PAGE_SHIFT,
+        nodemap_addr = memblock_find_in_range(addr, max_pfn<<PAGE_SHIFT,
                                       nodemap_size, L1_CACHE_BYTES);
-        if (nodemap_addr == -1UL) {
+        if (nodemap_addr == MEMBLOCK_ERROR) {
                 printk(KERN_ERR
                        "NUMA: Unable to allocate Memory to Node hash map\n");
                 nodemap_addr = nodemap_size = 0;
                 return -1;
         }
         memnodemap = phys_to_virt(nodemap_addr);
-        reserve_early(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP");
+        memblock_x86_reserve_range(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP");
 
         printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n",
                nodemap_addr, nodemap_addr + nodemap_size);
@@ -227,7 +227,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
         if (node_data[nodeid] == NULL)
                 return;
         nodedata_phys = __pa(node_data[nodeid]);
-        reserve_early(nodedata_phys, nodedata_phys + pgdat_size, "NODE_DATA");
+        memblock_x86_reserve_range(nodedata_phys, nodedata_phys + pgdat_size, "NODE_DATA");
         printk(KERN_INFO "  NODE_DATA [%016lx - %016lx]\n", nodedata_phys,
                 nodedata_phys + pgdat_size - 1);
         nid = phys_to_nid(nodedata_phys);
@@ -246,7 +246,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
          * Find a place for the bootmem map
          * nodedata_phys could be on other nodes by alloc_bootmem,
          * so need to sure bootmap_start not to be small, otherwise
-         * early_node_mem will get that with find_e820_area instead
+         * early_node_mem will get that with memblock_find_in_range instead
          * of alloc_bootmem, that could clash with reserved range
          */
         bootmap_pages = bootmem_bootmap_pages(last_pfn - start_pfn);
@@ -258,12 +258,12 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
         bootmap = early_node_mem(nodeid, bootmap_start, end,
                                  bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
         if (bootmap == NULL)  {
-                free_early(nodedata_phys, nodedata_phys + pgdat_size);
+                memblock_x86_free_range(nodedata_phys, nodedata_phys + pgdat_size);
                 node_data[nodeid] = NULL;
                 return;
         }
         bootmap_start = __pa(bootmap);
-        reserve_early(bootmap_start, bootmap_start+(bootmap_pages<<PAGE_SHIFT),
+        memblock_x86_reserve_range(bootmap_start, bootmap_start+(bootmap_pages<<PAGE_SHIFT),
                         "BOOTMAP");
 
         bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
@@ -417,7 +417,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
                 nr_nodes = MAX_NUMNODES;
         }
 
-        size = (max_addr - addr - e820_hole_size(addr, max_addr)) / nr_nodes;
+        size = (max_addr - addr - memblock_x86_hole_size(addr, max_addr)) / nr_nodes;
         /*
          * Calculate the number of big nodes that can be allocated as a result
          * of consolidating the remainder.
@@ -453,7 +453,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
                          * non-reserved memory is less than the per-node size.
                          */
                         while (end - physnodes[i].start -
-                                e820_hole_size(physnodes[i].start, end) < size) {
+                                memblock_x86_hole_size(physnodes[i].start, end) < size) {
                                 end += FAKE_NODE_MIN_SIZE;
                                 if (end > physnodes[i].end) {
                                         end = physnodes[i].end;
@@ -467,7 +467,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
                          * this one must extend to the boundary.
                          */
                         if (end < dma32_end && dma32_end - end -
-                            e820_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+                            memblock_x86_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
                                 end = dma32_end;
 
                         /*
@@ -476,7 +476,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
                          * physical node.
                          */
                         if (physnodes[i].end - end -
-                            e820_hole_size(end, physnodes[i].end) < size)
+                            memblock_x86_hole_size(end, physnodes[i].end) < size)
                                 end = physnodes[i].end;
 
                         /*
@@ -504,7 +504,7 @@ static u64 __init find_end_of_node(u64 start, u64 max_addr, u64 size)
 {
         u64 end = start + size;
 
-        while (end - start - e820_hole_size(start, end) < size) {
+        while (end - start - memblock_x86_hole_size(start, end) < size) {
                 end += FAKE_NODE_MIN_SIZE;
                 if (end > max_addr) {
                         end = max_addr;
@@ -533,7 +533,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
          * creates a uniform distribution of node sizes across the entire
          * machine (but not necessarily over physical nodes).
          */
-        min_size = (max_addr - addr - e820_hole_size(addr, max_addr)) /
+        min_size = (max_addr - addr - memblock_x86_hole_size(addr, max_addr)) /
                                                 MAX_NUMNODES;
         min_size = max(min_size, FAKE_NODE_MIN_SIZE);
         if ((min_size & FAKE_NODE_MIN_HASH_MASK) < min_size)
@@ -566,7 +566,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
                          * this one must extend to the boundary.
                          */
                         if (end < dma32_end && dma32_end - end -
-                            e820_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
+                            memblock_x86_hole_size(end, dma32_end) < FAKE_NODE_MIN_SIZE)
                                 end = dma32_end;
 
                         /*
@@ -575,7 +575,7 @@ static int __init split_nodes_size_interleave(u64 addr, u64 max_addr, u64 size)
                          * physical node.
                          */
                         if (physnodes[i].end - end -
-                            e820_hole_size(end, physnodes[i].end) < size)
+                            memblock_x86_hole_size(end, physnodes[i].end) < size)
                                 end = physnodes[i].end;
 
                         /*
@@ -639,7 +639,7 @@ static int __init numa_emulation(unsigned long start_pfn,
          */
         remove_all_active_ranges();
         for_each_node_mask(i, node_possible_map) {
-                e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+                memblock_x86_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
                                                 nodes[i].end >> PAGE_SHIFT);
                 setup_node_bootmem(i, nodes[i].start, nodes[i].end);
         }
@@ -692,7 +692,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
         node_set(0, node_possible_map);
         for (i = 0; i < nr_cpu_ids; i++)
                 numa_set_node(i, 0);
-        e820_register_active_regions(0, start_pfn, last_pfn);
+        memblock_x86_register_active_regions(0, start_pfn, last_pfn);
         setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT);
 }
 
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 9324f13492d5..a17dffd136c1 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -25,6 +25,7 @@
  */
 #include <linux/mm.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/acpi.h>
 #include <linux/nodemask.h>
@@ -264,7 +265,7 @@ int __init get_memcfg_from_srat(void)
                 if (node_read_chunk(chunk->nid, chunk))
                         continue;
 
-                e820_register_active_regions(chunk->nid, chunk->start_pfn,
+                memblock_x86_register_active_regions(chunk->nid, chunk->start_pfn,
                                              min(chunk->end_pfn, max_pfn));
         }
         /* for out of order entries in SRAT */
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index f9897f7a9ef1..7f44eb62a5e9 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/topology.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <asm/proto.h>
 #include <asm/numa.h>
@@ -98,15 +99,15 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
         unsigned long phys;
 
         length = slit->header.length;
-        phys = find_e820_area(0, max_pfn_mapped<<PAGE_SHIFT, length,
+        phys = memblock_find_in_range(0, max_pfn_mapped<<PAGE_SHIFT, length,
                  PAGE_SIZE);
 
-        if (phys == -1L)
+        if (phys == MEMBLOCK_ERROR)
                 panic(" Can not save slit!\n");
 
         acpi_slit = __va(phys);
         memcpy(acpi_slit, slit, length);
-        reserve_early(phys, phys + length, "ACPI SLIT");
+        memblock_x86_reserve_range(phys, phys + length, "ACPI SLIT");
 }
 
 /* Callback for Proximity Domain -> x2APIC mapping */
@@ -324,7 +325,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
                         pxmram = 0;
         }
 
-        e820ram = max_pfn - (e820_hole_size(0, max_pfn<<PAGE_SHIFT)>>PAGE_SHIFT);
+        e820ram = max_pfn - (memblock_x86_hole_size(0, max_pfn<<PAGE_SHIFT)>>PAGE_SHIFT);
         /* We seem to lose 3 pages somewhere. Allow 1M of slack. */
         if ((long)(e820ram - pxmram) >= (1<<(20 - PAGE_SHIFT))) {
                 printk(KERN_ERR
@@ -421,7 +422,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
         }
 
         for_each_node_mask(i, nodes_parsed)
-                e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+                memblock_x86_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
                                                 nodes[i].end >> PAGE_SHIFT);
         /* for out of order entries in SRAT */
         sort_node_map();
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 914f04695ce5..b511f1986911 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -44,6 +44,7 @@
 #include <linux/bug.h>
 #include <linux/module.h>
 #include <linux/gfp.h>
+#include <linux/memblock.h>
 
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
@@ -1735,7 +1736,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
         __xen_write_cr3(true, __pa(pgd));
         xen_mc_issue(PARAVIRT_LAZY_CPU);
 
-        reserve_early(__pa(xen_start_info->pt_base),
+        memblock_x86_reserve_range(__pa(xen_start_info->pt_base),
                       __pa(xen_start_info->pt_base +
                            xen_start_info->nr_pt_frames * PAGE_SIZE),
                       "XEN PAGETABLES");
@@ -1773,7 +1774,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
 
         pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(swapper_pg_dir)));
 
-        reserve_early(__pa(xen_start_info->pt_base),
+        memblock_x86_reserve_range(__pa(xen_start_info->pt_base),
                       __pa(xen_start_info->pt_base +
                            xen_start_info->nr_pt_frames * PAGE_SIZE),
                       "XEN PAGETABLES");
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index ad0047f47cd4..2ac8f29f89cb 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -8,6 +8,7 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/pm.h>
+#include <linux/memblock.h>
 
 #include <asm/elf.h>
 #include <asm/vdso.h>
@@ -61,7 +62,7 @@ char * __init xen_memory_setup(void)
          *  - xen_start_info
          * See comment above "struct start_info" in <xen/interface/xen.h>
          */
-        reserve_early(__pa(xen_start_info->mfn_list),
+        memblock_x86_reserve_range(__pa(xen_start_info->mfn_list),
                       __pa(xen_start_info->pt_base),
                         "XEN START INFO");
 
diff --git a/mm/bootmem.c b/mm/bootmem.c
index fda01a2c31af..13b0caa9793c 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -436,7 +436,7 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
 {
 #ifdef CONFIG_NO_BOOTMEM
         kmemleak_free_part(__va(physaddr), size);
-        free_early(physaddr, physaddr + size);
+        memblock_x86_free_range(physaddr, physaddr + size);
 #else
         unsigned long start, end;
 
@@ -462,7 +462,7 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
 {
 #ifdef CONFIG_NO_BOOTMEM
         kmemleak_free_part(__va(addr), size);
-        free_early(addr, addr + size);
+        memblock_x86_free_range(addr, addr + size);
 #else
         unsigned long start, end;