1 files changed, 47 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
new file mode 100644
index 00000000000..149532e162c
--- /dev/null
+++ b/arch/alpha/include/asm/topology.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_ALPHA_TOPOLOGY_H
+#define _ASM_ALPHA_TOPOLOGY_H
+
+#include <linux/smp.h>
+#include <linux/threads.h>
+#include <asm/machvec.h>
+
+#ifdef CONFIG_NUMA
+static inline int cpu_to_node(int cpu)
+{
+	int node;
+	
+	if (!alpha_mv.cpuid_to_nid)
+		return 0;
+
+	node = alpha_mv.cpuid_to_nid(cpu);
+
+#ifdef DEBUG_NUMA
+	BUG_ON(node < 0);
+#endif
+
+	return node;
+}
+
+static inline cpumask_t node_to_cpumask(int node)
+{
+	cpumask_t node_cpu_mask = CPU_MASK_NONE;
+	int cpu;
+
+	for_each_online_cpu(cpu) {
+		if (cpu_to_node(cpu) == node)
+			cpu_set(cpu, node_cpu_mask);
+	}
+
+#ifdef DEBUG_NUMA
+	printk("node %d: cpu_mask: %016lx\n", node, node_cpu_mask);
+#endif
+
+	return node_cpu_mask;
+}
+
+#define pcibus_to_cpumask(bus)	(cpu_online_map)
+
+#endif /* !CONFIG_NUMA */
+# include <asm-generic/topology.h>
+
+#endif /* _ASM_ALPHA_TOPOLOGY_H */