diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.h | 90 |
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 00000000000..21cf351fd05 --- /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 */ |