summaryrefslogtreecommitdiff
path: root/include/asm-ia64/topology.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/topology.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-ia64/topology.h')
-rw-r--r--include/asm-ia64/topology.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/include/asm-ia64/topology.h b/include/asm-ia64/topology.h
new file mode 100644
index 000000000000..21cf351fd05c
--- /dev/null
+++ b/include/asm-ia64/topology.h
@@ -0,0 +1,90 @@
+/*
+ * linux/include/asm-ia64/topology.h
+ *
+ * Copyright (C) 2002, Erich Focht, NEC
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _ASM_IA64_TOPOLOGY_H
+#define _ASM_IA64_TOPOLOGY_H
+
+#include <asm/acpi.h>
+#include <asm/numa.h>
+#include <asm/smp.h>
+
+#ifdef CONFIG_NUMA
+/*
+ * Returns the number of the node containing CPU 'cpu'
+ */
+#define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
+
+/*
+ * Returns a bitmask of CPUs on Node 'node'.
+ */
+#define node_to_cpumask(node) (node_to_cpu_mask[node])
+
+/*
+ * Returns the number of the node containing Node 'nid'.
+ * Not implemented here. Multi-level hierarchies detected with
+ * the help of node_distance().
+ */
+#define parent_node(nid) (nid)
+
+/*
+ * Returns the number of the first CPU on Node 'node'.
+ */
+#define node_to_first_cpu(node) (__ffs(node_to_cpumask(node)))
+
+void build_cpu_to_node_map(void);
+
+/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
+#define SD_NODE_INIT (struct sched_domain) { \
+ .span = CPU_MASK_NONE, \
+ .parent = NULL, \
+ .groups = NULL, \
+ .min_interval = 80, \
+ .max_interval = 320, \
+ .busy_factor = 320, \
+ .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, \
+}
+
+/* sched_domains SD_ALLNODES_INIT for IA64 NUMA machines */
+#define SD_ALLNODES_INIT (struct sched_domain) { \
+ .span = CPU_MASK_NONE, \
+ .parent = NULL, \
+ .groups = NULL, \
+ .min_interval = 80, \
+ .max_interval = 320, \
+ .busy_factor = 320, \
+ .imbalance_pct = 125, \
+ .cache_hot_time = (10*1000000), \
+ .cache_nice_tries = 1, \
+ .per_cpu_gain = 100, \
+ .flags = SD_LOAD_BALANCE \
+ | SD_BALANCE_EXEC, \
+ .last_balance = jiffies, \
+ .balance_interval = 100*(63+num_online_cpus())/64, \
+ .nr_balance_failed = 0, \
+}
+
+#endif /* CONFIG_NUMA */
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_IA64_TOPOLOGY_H */