Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86

* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: avoid section mismatch involving arch_register_cpu
  x86: fixes for lookup_address args
  x86: fix sparse warnings in cpu/common.c
  x86: make early_console static in early_printk.c
  x86: remove unneeded round_up
  x86: fix section mismatch warning in kernel/pci-calgary
  x86: fix section mismatch warning in acpi/boot.c
  x86: fix section mismatch warnings when referencing notifiers
  x86: silence section mismatch warning in smpboot_64.c
  x86: fix comments in vmlinux_64.lds
  x86_64: make bootmap_start page align v6
  x86_64: add debug name for early_res

19 files changed, 75 insertions, 62 deletions

diff --git a/arch/x86/boot/compressed/vmlinux_64.lds b/arch/x86/boot/compressed/vmlinux_64.lds
index f6e5b445f457..7e5c7209f6cc 100644
--- a/arch/x86/boot/compressed/vmlinux_64.lds
+++ b/arch/x86/boot/compressed/vmlinux_64.lds
@@ -3,7 +3,7 @@ OUTPUT_ARCH(i386:x86-64)
 ENTRY(startup_64)
 SECTIONS
 {
-        /* Be careful parts of head_64.S assume startup_64 is at
+        /* Be careful parts of head_64.S assume startup_32 is at
          * address 0.
          */
         . = 0;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 0ca27c7b0e8d..d2a58431a074 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -496,7 +496,8 @@ EXPORT_SYMBOL(acpi_register_gsi);
  *  ACPI based hotplug support for CPU
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
-int acpi_map_lsapic(acpi_handle handle, int *pcpu)
+
+static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
 {
         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
         union acpi_object *obj;
@@ -551,6 +552,11 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
         return 0;
 }
 
+/* wrapper to silence section mismatch warning */
+int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
+{
+        return _acpi_map_lsapic(handle, pcpu);
+}
 EXPORT_SYMBOL(acpi_map_lsapic);
 
 int acpi_unmap_lsapic(int cpu)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index d608c9ebbfe2..b7b2142b58e7 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -258,10 +258,10 @@ static int __cpuinit have_cpuid_p(void)
 void __init cpu_detect(struct cpuinfo_x86 *c)
 {
         /* Get vendor name */
-        cpuid(0x00000000, &c->cpuid_level,
-              (int *)&c->x86_vendor_id[0],
-              (int *)&c->x86_vendor_id[8],
-              (int *)&c->x86_vendor_id[4]);
+        cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
+              (unsigned int *)&c->x86_vendor_id[0],
+              (unsigned int *)&c->x86_vendor_id[8],
+              (unsigned int *)&c->x86_vendor_id[4]);
 
         c->x86 = 4;
         if (c->cpuid_level >= 0x00000001) {
@@ -283,7 +283,7 @@ void __init cpu_detect(struct cpuinfo_x86 *c)
 static void __cpuinit early_get_cap(struct cpuinfo_x86 *c)
 {
         u32 tfms, xlvl;
-        int ebx;
+        unsigned int ebx;
 
         memset(&c->x86_capability, 0, sizeof c->x86_capability);
         if (have_cpuid_p()) {
@@ -343,14 +343,14 @@ static void __init early_cpu_detect(void)
 static void __cpuinit generic_identify(struct cpuinfo_x86 * c)
 {
         u32 tfms, xlvl;
-        int ebx;
+        unsigned int ebx;
 
         if (have_cpuid_p()) {
                 /* Get vendor name */
-                cpuid(0x00000000, &c->cpuid_level,
-                      (int *)&c->x86_vendor_id[0],
-                      (int *)&c->x86_vendor_id[8],
-                      (int *)&c->x86_vendor_id[4]);
+                cpuid(0x00000000, (unsigned int *)&c->cpuid_level,
+                      (unsigned int *)&c->x86_vendor_id[0],
+                      (unsigned int *)&c->x86_vendor_id[8],
+                      (unsigned int *)&c->x86_vendor_id[4]);
                 
                 get_cpu_vendor(c, 0);
                 /* Initialize the standard set of capabilities */
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index dec66e452810..a63432d800f9 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -170,7 +170,7 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
         return err ? NOTIFY_BAD : NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier =
+static struct notifier_block __refdata cpuid_class_cpu_notifier =
 {
         .notifier_call = cpuid_class_cpu_callback,
 };
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index c617174e8963..9f65b4cc323c 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -54,30 +54,33 @@ static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
 
 struct early_res {
         unsigned long start, end;
+        char name[16];
 };
 static struct early_res early_res[MAX_EARLY_RES] __initdata = {
-        { 0, PAGE_SIZE },                       /* BIOS data page */
+        { 0, PAGE_SIZE, "BIOS data page" },                     /* BIOS data page */
 #ifdef CONFIG_SMP
-        { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE },
+        { SMP_TRAMPOLINE_BASE, SMP_TRAMPOLINE_BASE + 2*PAGE_SIZE, "SMP_TRAMPOLINE" },
 #endif
         {}
 };
 
-void __init reserve_early(unsigned long start, unsigned long end)
+void __init reserve_early(unsigned long start, unsigned long end, char *name)
 {
         int i;
         struct early_res *r;
         for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
                 r = &early_res[i];
                 if (end > r->start && start < r->end)
-                        panic("Overlapping early reservations %lx-%lx to %lx-%lx\n",
-                              start, end, r->start, r->end);
+                        panic("Overlapping early reservations %lx-%lx %s to %lx-%lx %s\n",
+                              start, end - 1, name?name:"", r->start, r->end - 1, r->name);
         }
         if (i >= MAX_EARLY_RES)
                 panic("Too many early reservations");
         r = &early_res[i];
         r->start = start;
         r->end = end;
+        if (name)
+                strncpy(r->name, name, sizeof(r->name) - 1);
 }
 
 void __init early_res_to_bootmem(void)
@@ -85,6 +88,8 @@ void __init early_res_to_bootmem(void)
         int i;
         for (i = 0; i < MAX_EARLY_RES && early_res[i].end; i++) {
                 struct early_res *r = &early_res[i];
+                printk(KERN_INFO "early res: %d [%lx-%lx] %s\n", i,
+                        r->start, r->end - 1, r->name);
                 reserve_bootmem_generic(r->start, r->end - r->start);
         }
 }
@@ -166,12 +171,13 @@ int __init e820_all_mapped(unsigned long start, unsigned long end,
 }
 
 /*
- * Find a free area in a specific range.
+ * Find a free area with specified alignment in a specific range.
  */
 unsigned long __init find_e820_area(unsigned long start, unsigned long end,
-                                    unsigned size)
+                                    unsigned size, unsigned long align)
 {
         int i;
+        unsigned long mask = ~(align - 1);
 
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
@@ -185,7 +191,8 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end,
                         continue;
                 while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
                         ;
-                last = PAGE_ALIGN(addr) + size;
+                addr = (addr + align - 1) & mask;
+                last = addr + size;
                 if (last > ei->addr + ei->size)
                         continue;
                 if (last > end)
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index b7d6c23f2871..cff84cd9987f 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -193,7 +193,7 @@ static struct console simnow_console = {
 };
 
 /* Direct interface for emergencies */
-struct console *early_console = &early_vga_console;
+static struct console *early_console = &early_vga_console;
 static int early_console_initialized = 0;
 
 void early_printk(const char *fmt, ...)
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 4b73992c1e11..674f2379480f 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -44,7 +44,7 @@ static void __init early_mapping_set_exec(unsigned long start,
                                           int executable)
 {
         pte_t *kpte;
-        int level;
+        unsigned int level;
 
         while (start < end) {
                 kpte = lookup_address((unsigned long)__va(start), &level);
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index a317336cdeaa..24dbf56928d7 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -75,7 +75,7 @@ static __init void reserve_ebda(void)
         if (ebda_size > 64*1024)
                 ebda_size = 64*1024;
 
-        reserve_early(ebda_addr, ebda_addr + ebda_size);
+        reserve_early(ebda_addr, ebda_addr + ebda_size, "EBDA");
 }
 
 void __init x86_64_start_kernel(char * real_mode_data)
@@ -105,14 +105,14 @@ void __init x86_64_start_kernel(char * real_mode_data)
         pda_init(0);
         copy_bootdata(__va(real_mode_data));
 
-        reserve_early(__pa_symbol(&_text), __pa_symbol(&_end));
+        reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
 
         /* Reserve INITRD */
         if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
                 unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
                 unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
                 unsigned long ramdisk_end   = ramdisk_image + ramdisk_size;
-                reserve_early(ramdisk_image, ramdisk_end);
+                reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
         }
 
         reserve_ebda();
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 6ff447f9fda7..f2702d01b8a8 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -797,7 +797,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
         return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata mc_cpu_notifier = {
+static struct notifier_block __refdata mc_cpu_notifier = {
         .notifier_call = mc_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 21f6e3c0be18..bd82850e6519 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -168,7 +168,7 @@ static int __cpuinit msr_class_cpu_callback(struct notifier_block *nfb,
         return err ? NOTIFY_BAD : NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata msr_class_cpu_notifier = {
+static struct notifier_block __refdata msr_class_cpu_notifier = {
         .notifier_call = msr_class_cpu_callback,
 };
 
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 21f34db2c03c..1fe7f043ebde 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1006,7 +1006,7 @@ static void __init calgary_set_split_completion_timeout(void __iomem *bbar,
         readq(target); /* flush */
 }
 
-static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
 {
         unsigned char busnum = dev->bus->number;
         void __iomem *bbar = tbl->bbar;
@@ -1022,7 +1022,7 @@ static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
         writel(cpu_to_be32(val), target);
 }
 
-static void calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
 {
         unsigned char busnum = dev->bus->number;
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 77fb87bf6e5a..18df70c534b9 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -182,7 +182,8 @@ contig_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 = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
+                                 PAGE_SIZE);
         if (bootmap == -1L)
                 panic("Cannot find bootmem map of size %ld\n", bootmap_size);
         bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index cc64b8085c2a..d53bd6fcb428 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -1019,7 +1019,7 @@ static void remove_siblinginfo(int cpu)
         cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
-void remove_cpu_from_maps(void)
+static void __ref remove_cpu_from_maps(void)
 {
         int cpu = smp_processor_id();
 
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 78cbb655aa79..e6757aaa202b 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -57,11 +57,10 @@ void arch_unregister_cpu(int num)
 }
 EXPORT_SYMBOL(arch_unregister_cpu);
 #else
-int arch_register_cpu(int num)
+static int __init arch_register_cpu(int num)
 {
         return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
 }
-EXPORT_SYMBOL(arch_register_cpu);
 #endif /*CONFIG_HOTPLUG_CPU*/
 
 static int __init topology_init(void)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index e28cc5277b16..e4440d0abf81 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -382,7 +382,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 
 #ifdef CONFIG_X86_PAE
         if (error_code & PF_INSTR) {
-                int level;
+                unsigned int level;
                 pte_t *pte = lookup_address(address, &level);
 
                 if (pte && pte_present(*pte) && !pte_exec(*pte))
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index cc50a13ce8d9..eabcaed76c28 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -354,17 +354,10 @@ static void __init find_early_table_space(unsigned long end)
          * need roughly 0.5KB per GB.
          */
         start = 0x8000;
-        table_start = find_e820_area(start, end, tables);
+        table_start = find_e820_area(start, end, tables, PAGE_SIZE);
         if (table_start == -1UL)
                 panic("Cannot find space for the kernel page tables");
 
-        /*
-         * When you have a lot of RAM like 256GB, early_table will not fit
-         * into 0x8000 range, find_e820_area() will find area after kernel
-         * bss but the table_start is not page aligned, so need to round it
-         * up to avoid overlap with bss:
-         */
-        table_start = round_up(table_start, PAGE_SIZE);
         table_start >>= PAGE_SHIFT;
         table_end = table_start;
 
@@ -420,7 +413,9 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
                 mmu_cr4_features = read_cr4();
         __flush_tlb_all();
 
-        reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT);
+        if (!after_bootmem)
+                reserve_early(table_start << PAGE_SHIFT,
+                                 table_end << PAGE_SHIFT, "PGTABLE");
 }
 
 #ifndef CONFIG_NUMA
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index a177d76e1c53..c004d94608fd 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -75,7 +75,8 @@ static int ioremap_change_attr(unsigned long paddr, unsigned long size,
 {
         unsigned long vaddr = (unsigned long)__va(paddr);
         unsigned long nrpages = size >> PAGE_SHIFT;
-        int err, level;
+        unsigned int level;
+        int err;
 
         /* No change for pages after the last mapping */
         if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT))
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dc3b1f7e1451..a920d09b9194 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -84,26 +84,24 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
 
 static int __init allocate_cachealigned_memnodemap(void)
 {
-        unsigned long pad, pad_addr;
+        unsigned long addr;
 
         memnodemap = memnode.embedded_map;
         if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map))
                 return 0;
 
-        pad = L1_CACHE_BYTES - 1;
-        pad_addr = 0x8000;
-        nodemap_size = pad + sizeof(s16) * memnodemapsize;
-        nodemap_addr = find_e820_area(pad_addr, end_pfn<<PAGE_SHIFT,
-                                      nodemap_size);
+        addr = 0x8000;
+        nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
+        nodemap_addr = find_e820_area(addr, end_pfn<<PAGE_SHIFT,
+                                      nodemap_size, L1_CACHE_BYTES);
         if (nodemap_addr == -1UL) {
                 printk(KERN_ERR
                        "NUMA: Unable to allocate Memory to Node hash map\n");
                 nodemap_addr = nodemap_size = 0;
                 return -1;
         }
-        pad_addr = (nodemap_addr + pad) & ~pad;
-        memnodemap = phys_to_virt(pad_addr);
-        reserve_early(nodemap_addr, nodemap_addr + nodemap_size);
+        memnodemap = phys_to_virt(nodemap_addr);
+        reserve_early(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP");
 
         printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n",
                nodemap_addr, nodemap_addr + nodemap_size);
@@ -164,15 +162,16 @@ int early_pfn_to_nid(unsigned long pfn)
 }
 
 static void * __init early_node_mem(int nodeid, unsigned long start,
-                                    unsigned long end, unsigned long size)
+                                    unsigned long end, unsigned long size,
+                                    unsigned long align)
 {
-        unsigned long mem = find_e820_area(start, end, size);
+        unsigned long mem = find_e820_area(start, end, size, align);
         void *ptr;
 
         if (mem != -1L)
                 return __va(mem);
-        ptr = __alloc_bootmem_nopanic(size,
-                                SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
+
+        ptr = __alloc_bootmem_nopanic(size, align, __pa(MAX_DMA_ADDRESS));
         if (ptr == NULL) {
                 printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
                        size, nodeid);
@@ -198,7 +197,8 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
         start_pfn = start >> PAGE_SHIFT;
         end_pfn = end >> PAGE_SHIFT;
 
-        node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size);
+        node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size,
+                                           SMP_CACHE_BYTES);
         if (node_data[nodeid] == NULL)
                 return;
         nodedata_phys = __pa(node_data[nodeid]);
@@ -211,8 +211,12 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
         /* Find a place for the bootmem map */
         bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
         bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
+        /*
+         * SMP_CAHCE_BYTES could be enough, but init_bootmem_node like
+         * to use that to align to PAGE_SIZE
+         */
         bootmap = early_node_mem(nodeid, bootmap_start, end,
-                                        bootmap_pages<<PAGE_SHIFT);
+                                 bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
         if (bootmap == NULL)  {
                 if (nodedata_phys < start || nodedata_phys >= end)
                         free_bootmem((unsigned long)node_data[nodeid],
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 06353d43f72e..7573e786d2f2 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -42,7 +42,7 @@ static __init int print_split(struct split_state *s)
         s->max_exec = 0;
         for (i = 0; i < max_pfn_mapped; ) {
                 unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
-                int level;
+                unsigned int level;
                 pte_t *pte;
 
                 pte = lookup_address(addr, &level);
@@ -106,7 +106,7 @@ static __init int exercise_pageattr(void)
         unsigned long *bm;
         pte_t *pte, pte0;
         int failed = 0;
-        int level;
+        unsigned int level;
         int i, k;
         int err;