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-rw-r--r--arch/x86/kernel/apic/apic.c15
-rw-r--r--arch/x86/kernel/apic/probe_64.c8
2 files changed, 4 insertions, 19 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index e80f291472a4..3987e4408f75 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -61,12 +61,6 @@ unsigned int boot_cpu_physical_apicid = -1U;
61 61
62/* 62/*
63 * The highest APIC ID seen during enumeration. 63 * The highest APIC ID seen during enumeration.
64 *
65 * This determines the messaging protocol we can use: if all APIC IDs
66 * are in the 0 ... 7 range, then we can use logical addressing which
67 * has some performance advantages (better broadcasting).
68 *
69 * If there's an APIC ID above 8, we use physical addressing.
70 */ 64 */
71unsigned int max_physical_apicid; 65unsigned int max_physical_apicid;
72 66
@@ -1898,14 +1892,7 @@ void __cpuinit generic_processor_info(int apicid, int version)
1898 max_physical_apicid = apicid; 1892 max_physical_apicid = apicid;
1899 1893
1900#ifdef CONFIG_X86_32 1894#ifdef CONFIG_X86_32
1901 /* 1895 if (num_processors > 8) {
1902 * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
1903 * but we need to work other dependencies like SMP_SUSPEND etc
1904 * before this can be done without some confusion.
1905 * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
1906 * - Ashok Raj <ashok.raj@intel.com>
1907 */
1908 if (max_physical_apicid >= 8) {
1909 switch (boot_cpu_data.x86_vendor) { 1896 switch (boot_cpu_data.x86_vendor) {
1910 case X86_VENDOR_INTEL: 1897 case X86_VENDOR_INTEL:
1911 if (!APIC_XAPIC(version)) { 1898 if (!APIC_XAPIC(version)) {
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 65edc180fc82..450fe2064a14 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -64,15 +64,13 @@ void __init default_setup_apic_routing(void)
64 apic = &apic_x2apic_phys; 64 apic = &apic_x2apic_phys;
65 else 65 else
66 apic = &apic_x2apic_cluster; 66 apic = &apic_x2apic_cluster;
67 printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
68 } 67 }
69#endif 68#endif
70 69
71 if (apic == &apic_flat) { 70 if (apic == &apic_flat && num_processors > 8)
72 if (max_physical_apicid >= 8)
73 apic = &apic_physflat; 71 apic = &apic_physflat;
74 printk(KERN_INFO "Setting APIC routing to %s\n", apic->name); 72
75 } 73 printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
76 74
77 if (is_vsmp_box()) { 75 if (is_vsmp_box()) {
78 /* need to update phys_pkg_id */ 76 /* need to update phys_pkg_id */