x86: fix 2.6.27rc1 cannot boot more than 8CPUs

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / setup.c

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 36c540d4ac4b6164dbd02d6b23951ea1315f134f..68b48e3fbcbd92b7115ac90cb59cd9c1d3bc4054 100644 (file)
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -57,12 +57,8 @@
 #include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/delay.h>
-#include <linux/highmem.h>
 
 #include <linux/kallsyms.h>
-#include <linux/edd.h>
-#include <linux/iscsi_ibft.h>
-#include <linux/kexec.h>
 #include <linux/cpufreq.h>
 #include <linux/dma-mapping.h>
 #include <linux/ctype.h>
@@ -96,7 +92,7 @@
 #include <asm/smp.h>
 #include <asm/desc.h>
 #include <asm/dma.h>
-#include <asm/gart.h>
+#include <asm/iommu.h>
 #include <asm/mmu_context.h>
 #include <asm/proto.h>
 
@@ -104,7 +100,6 @@
 #include <asm/paravirt.h>
 
 #include <asm/percpu.h>
-#include <asm/sections.h>
 #include <asm/topology.h>
 #include <asm/apicdef.h>
 #ifdef CONFIG_X86_64
@@ -579,6 +574,10 @@ static int __init setup_elfcorehdr(char *arg)
 early_param("elfcorehdr", setup_elfcorehdr);
 #endif
 
+static struct x86_quirks default_x86_quirks __initdata;
+
+struct x86_quirks *x86_quirks __initdata = &default_x86_quirks;
+
 /*
  * Determine if we were loaded by an EFI loader.  If so, then we have also been
  * passed the efi memmap, systab, etc., so we should use these data structures
@@ -598,13 +597,21 @@ void __init setup_arch(char **cmdline_p)
        memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
        visws_early_detect();
        pre_setup_arch_hook();
-       early_cpu_init();
 #else
        printk(KERN_INFO "Command line: %s\n", boot_command_line);
 #endif
 
+       early_cpu_init();
        early_ioremap_init();
 
+#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
+       /*
+        * Must be before kernel pagetables are setup
+        * or fixmap area is touched.
+        */
+       vmi_init();
+#endif
+
        ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
        screen_info = boot_params.screen_info;
        edid_info = boot_params.edid_info;
@@ -666,9 +673,6 @@ void __init setup_arch(char **cmdline_p)
        bss_resource.start = virt_to_phys(&__bss_start);
        bss_resource.end = virt_to_phys(&__bss_stop)-1;
 
-#ifdef CONFIG_X86_64
-       early_cpu_init();
-#endif
        strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
        *cmdline_p = command_line;
 
@@ -681,9 +685,14 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_X86_LOCAL_APIC
                disable_apic = 1;
 #endif
-               clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
+               setup_clear_cpu_cap(X86_FEATURE_APIC);
        }
 
+#ifdef CONFIG_PCI
+       if (pci_early_dump_regs)
+               early_dump_pci_devices();
+#endif
+
        finish_e820_parsing();
 
 #ifdef CONFIG_X86_32
@@ -787,10 +796,6 @@ void __init setup_arch(char **cmdline_p)
 
        initmem_init(0, max_pfn);
 
-#ifdef CONFIG_X86_64
-       dma32_reserve_bootmem();
-#endif
-
 #ifdef CONFIG_ACPI_SLEEP
        /*
         * Reserve low memory region for sleep support.
@@ -805,21 +810,25 @@ void __init setup_arch(char **cmdline_p)
 #endif
        reserve_crashkernel();
 
+#ifdef CONFIG_X86_64
+       /*
+        * dma32_reserve_bootmem() allocates bootmem which may conflict
+        * with the crashkernel command line, so do that after
+        * reserve_crashkernel()
+        */
+       dma32_reserve_bootmem();
+#endif
+
        reserve_ibft_region();
 
 #ifdef CONFIG_KVM_CLOCK
        kvmclock_init();
 #endif
 
-#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
-       /*
-        * Must be after max_low_pfn is determined, and before kernel
-        * pagetables are setup.
-        */
-       vmi_init();
-#endif
-
+       paravirt_pagetable_setup_start(swapper_pg_dir);
        paging_init();
+       paravirt_pagetable_setup_done(swapper_pg_dir);
+       paravirt_post_allocator_init();
 
 #ifdef CONFIG_X86_64
        map_vsyscall();
@@ -849,23 +858,9 @@ void __init setup_arch(char **cmdline_p)
        init_cpu_to_node();
 #endif
 
-#ifdef CONFIG_X86_NUMAQ
-       /*
-        * need to check online nodes num, call it
-        * here before time_init/tsc_init
-        */
-       numaq_tsc_disable();
-#endif
-
        init_apic_mappings();
        ioapic_init_mappings();
 
-#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
-       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
        kvm_guest_init();
 
        e820_reserve_resources();