---

yaml
---
r: 277431
b: refs/heads/master
c: 64be4c1
h: refs/heads/master
i:
  277429: 8e7d04a
  277427: 0534c3b
  277423: 3d45964
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9a0ebfbe3f1007008d198ccc6b86783cdb312fec
+refs/heads/master: 64be4c1c2428e148de6081af235e2418e6a66dda

trunk/arch/x86/include/asm/x86_init.h

@@ -7,6 +7,7 @@
 struct mpc_bus;
 struct mpc_cpu;
 struct mpc_table;
+struct cpuinfo_x86;
 
 /**
  * struct x86_init_mpparse - platform specific mpparse ops
@@ -147,6 +148,7 @@ struct x86_init_ops {
  */
 struct x86_cpuinit_ops {
 	void (*setup_percpu_clockev)(void);
+	void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
 };
 
 /**
@@ -186,5 +188,6 @@ extern struct x86_msi_ops x86_msi;
 
 extern void x86_init_noop(void);
 extern void x86_init_uint_noop(unsigned int unused);
+extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node);
 
 #endif

trunk/arch/x86/kernel/cpu/amd.c

@@ -353,6 +353,13 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
 	if (node == NUMA_NO_NODE)
 		node = per_cpu(cpu_llc_id, cpu);
 
+	/*
+	 * If core numbers are inconsistent, it's likely a multi-fabric platform,
+	 * so invoke platform-specific handler
+	 */
+	if (c->phys_proc_id != node)
+		x86_cpuinit.fixup_cpu_id(c, node);
+
 	if (!node_online(node)) {
 		/*
 		 * Two possibilities here:

trunk/arch/x86/kernel/cpu/common.c

@@ -1140,6 +1140,15 @@ static void dbg_restore_debug_regs(void)
 #define dbg_restore_debug_regs()
 #endif /* ! CONFIG_KGDB */
 
+/*
+ * Prints an error where the NUMA and configured core-number mismatch and the
+ * platform didn't override this to fix it up
+ */
+void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node)
+{
+	pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id);
+}
+
 /*
  * cpu_init() initializes state that is per-CPU. Some data is already
  * initialized (naturally) in the bootstrap process, such as the GDT

trunk/arch/x86/kernel/x86_init.c

@@ -92,6 +92,7 @@ struct x86_init_ops x86_init __initdata = {
 
 struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
 	.setup_percpu_clockev		= setup_secondary_APIC_clock,
+	.fixup_cpu_id			= x86_default_fixup_cpu_id,
 };
 
 static void default_nmi_init(void) { };