diff options
Diffstat (limited to 'arch/x86/kernel/smpboot_32.c')
| -rw-r--r-- | arch/x86/kernel/smpboot_32.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index b44a743d0ea..8144aa3a1ed 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -742,6 +742,15 @@ void *xquad_portio; EXPORT_SYMBOL(xquad_portio); #endif +static void __init disable_smp(void) +{ + smpboot_clear_io_apic_irqs(); + phys_cpu_present_map = physid_mask_of_physid(0); + map_cpu_to_logical_apicid(); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); + cpu_set(0, per_cpu(cpu_core_map, 0)); +} + static int __init smp_sanity_check(unsigned max_cpus) { /* @@ -750,14 +759,10 @@ static int __init smp_sanity_check(unsigned max_cpus) */ if (!smp_found_config && !acpi_lapic) { printk(KERN_NOTICE "SMP motherboard not detected.\n"); - smpboot_clear_io_apic_irqs(); - phys_cpu_present_map = physid_mask_of_physid(0); + disable_smp(); if (APIC_init_uniprocessor()) printk(KERN_NOTICE "Local APIC not detected." " Using dummy APIC emulation.\n"); - map_cpu_to_logical_apicid(); - cpu_set(0, per_cpu(cpu_sibling_map, 0)); - cpu_set(0, per_cpu(cpu_core_map, 0)); return -1; } @@ -779,11 +784,6 @@ static int __init smp_sanity_check(unsigned max_cpus) printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n", boot_cpu_physical_apicid); printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n"); - smpboot_clear_io_apic_irqs(); - phys_cpu_present_map = physid_mask_of_physid(0); - map_cpu_to_logical_apicid(); - cpu_set(0, per_cpu(cpu_sibling_map, 0)); - cpu_set(0, per_cpu(cpu_core_map, 0)); return -1; } @@ -801,11 +801,6 @@ static int __init smp_sanity_check(unsigned max_cpus) connect_bsp_APIC(); setup_local_APIC(); } - smpboot_clear_io_apic_irqs(); - phys_cpu_present_map = physid_mask_of_physid(0); - map_cpu_to_logical_apicid(); - cpu_set(0, per_cpu(cpu_sibling_map, 0)); - cpu_set(0, per_cpu(cpu_core_map, 0)); return -1; } return 0; @@ -835,7 +830,12 @@ static void __init smp_boot_cpus(unsigned int max_cpus) set_cpu_sibling_map(0); - smp_sanity_check(max_cpus); + if (smp_sanity_check(max_cpus) < 0) { + printk(KERN_INFO "SMP disabled\n"); + disable_smp(); + return; + } + connect_bsp_APIC(); setup_local_APIC(); map_cpu_to_logical_apicid(); |