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-rw-r--r--arch/x86/kernel/apic_32.c5
-rw-r--r--arch/x86/kernel/apic_64.c3
-rw-r--r--arch/x86/kernel/genapic_64.c2
-rw-r--r--arch/x86/kernel/mpparse.c5
-rw-r--r--arch/x86/kernel/setup.c1
-rw-r--r--arch/x86/kernel/setup_32.c11
-rw-r--r--arch/x86/mach-generic/bigsmp.c2
-rw-r--r--include/asm-x86/mpspec.h1
8 files changed, 21 insertions, 9 deletions
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index c304759f0834..954d67931a50 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1518,6 +1518,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
*/
cpu = 0;
+ if (apicid > max_physical_apicid)
+ max_physical_apicid = apicid;
+
/*
* Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
* but we need to work other dependencies like SMP_SUSPEND etc
@@ -1525,7 +1528,7 @@ void __cpuinit generic_processor_info(int apicid, int version)
* if (CPU_HOTPLUG_ENABLED || num_processors > 8)
* - Ashok Raj <ashok.raj@intel.com>
*/
- if (num_processors > 8) {
+ if (max_physical_apicid >= 8) {
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_INTEL:
if (!APIC_XAPIC(version)) {
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 54087f920f2f..1872555b98a3 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -1093,6 +1093,9 @@ void __cpuinit generic_processor_info(int apicid, int version)
*/
cpu = 0;
}
+ if (apicid > max_physical_apicid)
+ max_physical_apicid = apicid;
+
/* are we being called early in kernel startup? */
if (x86_cpu_to_apicid_early_ptr) {
u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr;
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index cbaaf69bedb2..1fa8be5bd217 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -51,7 +51,7 @@ void __init setup_apic_routing(void)
else
#endif
- if (num_possible_cpus() <= 8)
+ if (max_physical_apicid < 8)
genapic = &apic_flat;
else
genapic = &apic_physflat;
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index b4a950da2f97..7591325e616d 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -473,6 +473,11 @@ static int __init smp_read_mpc(struct mp_config_table *mpc, unsigned early)
++mpc_record;
#endif
}
+
+#ifdef CONFIG_X86_GENERICARCH
+ generic_bigsmp_probe();
+#endif
+
setup_apic_routing();
if (!num_processors)
printk(KERN_ERR "MPTABLE: no processors registered!\n");
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0a281f2c7157..45a5e247d450 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -17,6 +17,7 @@ unsigned int num_processors;
unsigned disabled_cpus __cpuinitdata;
/* Processor that is doing the boot up */
unsigned int boot_cpu_physical_apicid = -1U;
+unsigned int max_physical_apicid;
EXPORT_SYMBOL(boot_cpu_physical_apicid);
DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index ee1ccdbd7100..be1a99003677 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -838,18 +838,17 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_ACPI
acpi_boot_init();
-
+#endif
+#if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
+ if (smp_found_config)
+ get_smp_config();
+#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
-#if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
- if (smp_found_config)
- get_smp_config();
-#endif
e820_setup_gap();
e820_mark_nosave_regions(max_low_pfn);
diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
index 95fc463056d0..2a243019acae 100644
--- a/arch/x86/mach-generic/bigsmp.c
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -48,7 +48,7 @@ static const struct dmi_system_id bigsmp_dmi_table[] = {
static int probe_bigsmp(void)
{
if (def_to_bigsmp)
- dmi_bigsmp = 1;
+ dmi_bigsmp = 1;
else
dmi_check_system(bigsmp_dmi_table);
return dmi_bigsmp;
diff --git a/include/asm-x86/mpspec.h b/include/asm-x86/mpspec.h
index f38b68e8de5a..4451d720ee07 100644
--- a/include/asm-x86/mpspec.h
+++ b/include/asm-x86/mpspec.h
@@ -33,6 +33,7 @@ extern int mp_bus_id_to_type[MAX_MP_BUSSES];
extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
extern unsigned int boot_cpu_physical_apicid;
+extern unsigned int max_physical_apicid;
extern int smp_found_config;
extern int mpc_default_type;
extern unsigned long mp_lapic_addr;