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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 e80f291472a..3987e4408f7 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;
/*
* The highest APIC ID seen during enumeration.
- *
- * This determines the messaging protocol we can use: if all APIC IDs
- * are in the 0 ... 7 range, then we can use logical addressing which
- * has some performance advantages (better broadcasting).
- *
- * If there's an APIC ID above 8, we use physical addressing.
*/
unsigned int max_physical_apicid;
@@ -1898,14 +1892,7 @@ void __cpuinit generic_processor_info(int apicid, int version)
max_physical_apicid = apicid;
#ifdef CONFIG_X86_32
- /*
- * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
- * but we need to work other dependencies like SMP_SUSPEND etc
- * before this can be done without some confusion.
- * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
- * - Ashok Raj <ashok.raj@intel.com>
- */
- if (max_physical_apicid >= 8) {
+ if (num_processors > 8) {
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_INTEL:
if (!APIC_XAPIC(version)) {
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 65edc180fc8..450fe2064a1 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)
apic = &apic_x2apic_phys;
else
apic = &apic_x2apic_cluster;
- printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
}
#endif
- if (apic == &apic_flat) {
- if (max_physical_apicid >= 8)
+ if (apic == &apic_flat && num_processors > 8)
apic = &apic_physflat;
- printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
- }
+
+ printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
if (is_vsmp_box()) {
/* need to update phys_pkg_id */