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-rw-r--r--arch/x86/mm/amdtopology.c34
1 files changed, 12 insertions, 22 deletions
diff --git a/arch/x86/mm/amdtopology.c b/arch/x86/mm/amdtopology.c
index b3ca7d23e4..9332b36a10 100644
--- a/arch/x86/mm/amdtopology.c
+++ b/arch/x86/mm/amdtopology.c
@@ -54,13 +54,11 @@ static __init int find_northbridge(void)
int __init amd_numa_init(void)
{
- u64 start = PFN_PHYS(0);
+ unsigned int numnodes, cores, apicid;
+ u64 prevbase, start = PFN_PHYS(0);
u64 end = PFN_PHYS(max_pfn);
- unsigned numnodes;
- u64 prevbase;
- int i, j, nb;
u32 nodeid, reg;
- unsigned int bits, cores, apicid_base;
+ int i, j, nb;
if (!early_pci_allowed())
return -EINVAL;
@@ -158,26 +156,18 @@ int __init amd_numa_init(void)
return -ENOENT;
/*
- * We seem to have valid NUMA configuration. Map apicids to nodes
- * using the coreid bits from early_identify_cpu.
+ * We seem to have valid NUMA configuration. Map apicids to nodes
+ * using the size of the core domain in the APIC space.
*/
- bits = boot_cpu_data.x86_coreid_bits;
- cores = 1 << bits;
- apicid_base = 0;
+ cores = topology_get_domain_size(TOPO_CORE_DOMAIN);
- /*
- * get boot-time SMP configuration:
- */
- early_get_smp_config();
+ apicid = boot_cpu_physical_apicid;
+ if (apicid > 0)
+ pr_info("BSP APIC ID: %02x\n", apicid);
- if (boot_cpu_physical_apicid > 0) {
- pr_info("BSP APIC ID: %02x\n", boot_cpu_physical_apicid);
- apicid_base = boot_cpu_physical_apicid;
+ for_each_node_mask(i, numa_nodes_parsed) {
+ for (j = 0; j < cores; j++, apicid++)
+ set_apicid_to_node(apicid, i);
}
-
- for_each_node_mask(i, numa_nodes_parsed)
- for (j = apicid_base; j < cores + apicid_base; j++)
- set_apicid_to_node((i << bits) + j, i);
-
return 0;
}