1 files changed, 70 insertions, 0 deletions

diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h
new file mode 100644
index 000000000000..2512e3836bf4
--- /dev/null
+++ b/include/asm-powerpc/topology.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_POWERPC_TOPOLOGY_H
+#define _ASM_POWERPC_TOPOLOGY_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_NUMA
+
+#include <asm/mmzone.h>
+
+static inline int cpu_to_node(int cpu)
+{
+        int node;
+
+        node = numa_cpu_lookup_table[cpu];
+
+#ifdef DEBUG_NUMA
+        BUG_ON(node == -1);
+#endif
+
+        return node;
+}
+
+#define parent_node(node)       (node)
+
+static inline cpumask_t node_to_cpumask(int node)
+{
+        return numa_cpumask_lookup_table[node];
+}
+
+static inline int node_to_first_cpu(int node)
+{
+        cpumask_t tmp;
+        tmp = node_to_cpumask(node);
+        return first_cpu(tmp);
+}
+
+#define pcibus_to_node(node)    (-1)
+#define pcibus_to_cpumask(bus)  (cpu_online_map)
+
+#define nr_cpus_node(node)      (nr_cpus_in_node[node])
+
+/* sched_domains SD_NODE_INIT for PPC64 machines */
+#define SD_NODE_INIT (struct sched_domain) {            \
+        .span                   = CPU_MASK_NONE,        \
+        .parent                 = NULL,                 \
+        .groups                 = NULL,                 \
+        .min_interval           = 8,                    \
+        .max_interval           = 32,                   \
+        .busy_factor            = 32,                   \
+        .imbalance_pct          = 125,                  \
+        .cache_hot_time         = (10*1000000),         \
+        .cache_nice_tries       = 1,                    \
+        .per_cpu_gain           = 100,                  \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_EXEC       \
+                                | SD_BALANCE_NEWIDLE    \
+                                | SD_WAKE_IDLE          \
+                                | SD_WAKE_BALANCE,      \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+        .nr_balance_failed      = 0,                    \
+}
+
+#else
+
+#include <asm-generic/topology.h>
+
+#endif /* CONFIG_NUMA */
+
+#endif  /* _ASM_POWERPC_TOPOLOGY_H */