Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[sfrench/cifs-2.6.git] / arch / i386 / kernel / setup.c

diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index af4de58cab543362bb19d8e31c85006cd7c17e9d..dc39ca6a7eca82f546c649cb6b2e1b3c6a20b4a2 100644 (file)
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -82,19 +82,19 @@ EXPORT_SYMBOL(efi_enabled);
 /* cpu data as detected by the assembly code in head.S */
 struct cpuinfo_x86 new_cpu_data __initdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
 /* common cpu data for all cpus */
-struct cpuinfo_x86 boot_cpu_data = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
+struct cpuinfo_x86 boot_cpu_data __read_mostly = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
 EXPORT_SYMBOL(boot_cpu_data);
 
 unsigned long mmu_cr4_features;
 
-#ifdef CONFIG_ACPI_INTERPRETER
+#ifdef CONFIG_ACPI
        int acpi_disabled = 0;
 #else
        int acpi_disabled = 1;
 #endif
 EXPORT_SYMBOL(acpi_disabled);
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 int __initdata acpi_force = 0;
 extern acpi_interrupt_flags    acpi_sci_flags;
 #endif
@@ -139,6 +139,7 @@ struct sys_desc_table_struct {
        unsigned char table[0];
 };
 struct edid_info edid_info;
+EXPORT_SYMBOL_GPL(edid_info);
 struct ist_info ist_info;
 #if defined(CONFIG_X86_SPEEDSTEP_SMI) || \
        defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
@@ -370,12 +371,16 @@ static void __init limit_regions(unsigned long long size)
        int i;
 
        if (efi_enabled) {
-               for (i = 0; i < memmap.nr_map; i++) {
-                       current_addr = memmap.map[i].phys_addr +
-                                      (memmap.map[i].num_pages << 12);
-                       if (memmap.map[i].type == EFI_CONVENTIONAL_MEMORY) {
+               efi_memory_desc_t *md;
+               void *p;
+
+               for (p = memmap.map, i = 0; p < memmap.map_end;
+                       p += memmap.desc_size, i++) {
+                       md = p;
+                       current_addr = md->phys_addr + (md->num_pages << 12);
+                       if (md->type == EFI_CONVENTIONAL_MEMORY) {
                                if (current_addr >= size) {
-                                       memmap.map[i].num_pages -=
+                                       md->num_pages -=
                                                (((current_addr-size) + PAGE_SIZE-1) >> PAGE_SHIFT);
                                        memmap.nr_map = i + 1;
                                        return;
@@ -794,7 +799,7 @@ static void __init parse_cmdline_early (char ** cmdline_p)
                }
 #endif
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
                /* "acpi=off" disables both ACPI table parsing and interpreter */
                else if (!memcmp(from, "acpi=off", 8)) {
                        disable_acpi();
@@ -846,11 +851,16 @@ static void __init parse_cmdline_early (char ** cmdline_p)
 #endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
+               if (!memcmp(from, "disable_timer_pin_1", 19))
+                       disable_timer_pin_1 = 1;
+               if (!memcmp(from, "enable_timer_pin_1", 18))
+                       disable_timer_pin_1 = -1;
+
                /* disable IO-APIC */
                else if (!memcmp(from, "noapic", 6))
                        disable_ioapic_setup();
 #endif /* CONFIG_X86_LOCAL_APIC */
-#endif /* CONFIG_ACPI_BOOT */
+#endif /* CONFIG_ACPI */
 
 #ifdef CONFIG_X86_LOCAL_APIC
                /* enable local APIC */
@@ -1295,7 +1305,7 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
  */
 static void __init register_memory(void)
 {
-       unsigned long gapstart, gapsize;
+       unsigned long gapstart, gapsize, round;
        unsigned long long last;
        int           i;
 
@@ -1340,14 +1350,14 @@ static void __init register_memory(void)
        }
 
        /*
-        * Start allocating dynamic PCI memory a bit into the gap,
-        * aligned up to the nearest megabyte.
-        *
-        * Question: should we try to pad it up a bit (do something
-        * like " + (gapsize >> 3)" in there too?). We now have the
-        * technology.
+        * See how much we want to round up: start off with
+        * rounding to the next 1MB area.
         */
-       pci_mem_start = (gapstart + 0xfffff) & ~0xfffff;
+       round = 0x100000;
+       while ((gapsize >> 4) > round)
+               round += round;
+       /* Fun with two's complement */
+       pci_mem_start = (gapstart + round) & -round;
 
        printk("Allocating PCI resources starting at %08lx (gap: %08lx:%08lx)\n",
                pci_mem_start, gapstart, gapsize);
@@ -1575,14 +1585,20 @@ void __init setup_arch(char **cmdline_p)
        if (efi_enabled)
                efi_map_memmap();
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
        /*
         * Parse the ACPI tables for possible boot-time SMP configuration.
         */
        acpi_boot_table_init();
        acpi_boot_init();
-#endif
 
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC)
+       if (def_to_bigsmp)
+               printk(KERN_WARNING "More than 8 CPUs detected and "
+                       "CONFIG_X86_PC cannot handle it.\nUse "
+                       "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
+#endif
+#endif
 #ifdef CONFIG_X86_LOCAL_APIC
        if (smp_found_config)
                get_smp_config();