1 files changed, 48 insertions, 0 deletions

diff --git a/include/asm-alpha/topology.h b/include/asm-alpha/topology.h
new file mode 100644
index 000000000000..eb740e280d9c
--- /dev/null
+++ b/include/asm-alpha/topology.h
@@ -0,0 +1,48 @@
+#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(cpu = 0; cpu < NR_CPUS; cpu++) {
+                if (cpu_online(cpu) && (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)
+
+#else /* CONFIG_NUMA */
+# include <asm-generic/topology.h>
+#endif /* !CONFIG_NUMA */
+
+#endif /* _ASM_ALPHA_TOPOLOGY_H */