x86: early check if a system is numaq

so we could fall back to one node numa.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 11 insertions, 3 deletions

diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 8898aa49079d..b4a950da2f97 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -70,7 +70,10 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
                 return;
         }
 #ifdef CONFIG_X86_NUMAQ
-        apicid = mpc_apic_id(m, translation_table[mpc_record]);
+        if (found_numaq)
+                apicid = mpc_apic_id(m, translation_table[mpc_record]);
+        else
+                apicid = m->mpc_apicid;
 #else
         apicid = m->mpc_apicid;
 #endif
@@ -91,7 +94,8 @@ static void __init MP_bus_info(struct mpc_config_bus *m)
         str[6] = 0;
 
 #ifdef CONFIG_X86_NUMAQ
-        mpc_oem_bus_info(m, str, translation_table[mpc_record]);
+        if (found_numaq)
+                mpc_oem_bus_info(m, str, translation_table[mpc_record]);
 #else
         printk(KERN_INFO "Bus #%d is %s\n", m->mpc_busid, str);
 #endif
@@ -112,7 +116,8 @@ static void __init MP_bus_info(struct mpc_config_bus *m)
 #endif
         } else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI) - 1) == 0) {
 #ifdef CONFIG_X86_NUMAQ
-                mpc_oem_pci_bus(m, translation_table[mpc_record]);
+                if (found_numaq)
+                        mpc_oem_pci_bus(m, translation_table[mpc_record]);
 #endif
                 clear_bit(m->mpc_busid, mp_bus_not_pci);
 #if defined(CONFIG_EISA) || defined (CONFIG_MCA)
@@ -321,6 +326,9 @@ static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
 {
         if (strncmp(oem, "IBM NUMA", 8))
                 printk("Warning!  May not be a NUMA-Q system!\n");
+        else
+                found_numaq = 1;
+
         if (mpc->mpc_oemptr)
                 smp_read_mpc_oem((struct mp_config_oemtable *)mpc->mpc_oemptr,
                                  mpc->mpc_oemsize);