mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
|
/*
|
||
|
|
* 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 */
|