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-rw-r--r--include/asm-ppc64/topology.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/include/asm-ppc64/topology.h b/include/asm-ppc64/topology.h
new file mode 100644
index 000000000000..d58d9dd79998
--- /dev/null
+++ b/include/asm-ppc64/topology.h
@@ -0,0 +1,68 @@
+#ifndef _ASM_PPC64_TOPOLOGY_H
+#define _ASM_PPC64_TOPOLOGY_H
+
+#include <linux/config.h>
+#include <asm/mmzone.h>
+
+#ifdef CONFIG_NUMA
+
+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_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 /* !CONFIG_NUMA */
+
+#include <asm-generic/topology.h>
+
+#endif /* CONFIG_NUMA */
+
+#endif /* _ASM_PPC64_TOPOLOGY_H */