lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86: early check if a system is numaq

Browse Source 
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>
This commit is contained in:
Yinghai Lu
2008-06-03 10:25:54 -07:00
committed by Ingo Molnar
parent f19dc2f22a
commit ab530e1f78
4 changed files with 33 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
arch/x86/kernel/mpparse.c
View File

@@ -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);