129 lines
3.2 KiB
C
129 lines
3.2 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
|
|
|
|
/* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
|
|
#define PENALTY_FOR_NODE_WITH_CPUS 255
|
|
|
|
/*
|
|
* Distance above which we begin to use zone reclaim
|
|
*/
|
|
#define RECLAIM_DISTANCE 15
|
|
|
|
/*
|
|
* 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) (first_cpu(node_to_cpumask(node)))
|
|
|
|
/*
|
|
* Determines the node for a given pci bus
|
|
*/
|
|
#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
|
|
|
|
void build_cpu_to_node_map(void);
|
|
|
|
#define SD_CPU_INIT (struct sched_domain) { \
|
|
.span = CPU_MASK_NONE, \
|
|
.parent = NULL, \
|
|
.child = NULL, \
|
|
.groups = NULL, \
|
|
.min_interval = 1, \
|
|
.max_interval = 4, \
|
|
.busy_factor = 64, \
|
|
.imbalance_pct = 125, \
|
|
.cache_nice_tries = 2, \
|
|
.busy_idx = 2, \
|
|
.idle_idx = 1, \
|
|
.newidle_idx = 2, \
|
|
.wake_idx = 1, \
|
|
.forkexec_idx = 1, \
|
|
.flags = SD_LOAD_BALANCE \
|
|
| SD_BALANCE_NEWIDLE \
|
|
| SD_BALANCE_EXEC \
|
|
| SD_WAKE_AFFINE, \
|
|
.last_balance = jiffies, \
|
|
.balance_interval = 1, \
|
|
.nr_balance_failed = 0, \
|
|
}
|
|
|
|
/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
|
|
#define SD_NODE_INIT (struct sched_domain) { \
|
|
.span = CPU_MASK_NONE, \
|
|
.parent = NULL, \
|
|
.child = NULL, \
|
|
.groups = NULL, \
|
|
.min_interval = 8, \
|
|
.max_interval = 8*(min(num_online_cpus(), 32)), \
|
|
.busy_factor = 64, \
|
|
.imbalance_pct = 125, \
|
|
.cache_nice_tries = 2, \
|
|
.busy_idx = 3, \
|
|
.idle_idx = 2, \
|
|
.newidle_idx = 2, \
|
|
.wake_idx = 1, \
|
|
.forkexec_idx = 1, \
|
|
.flags = SD_LOAD_BALANCE \
|
|
| SD_BALANCE_EXEC \
|
|
| SD_BALANCE_FORK \
|
|
| SD_SERIALIZE \
|
|
| SD_WAKE_BALANCE, \
|
|
.last_balance = jiffies, \
|
|
.balance_interval = 64, \
|
|
.nr_balance_failed = 0, \
|
|
}
|
|
|
|
#endif /* CONFIG_NUMA */
|
|
|
|
#ifdef CONFIG_SMP
|
|
#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
|
|
#define topology_core_id(cpu) (cpu_data(cpu)->core_id)
|
|
#define topology_core_siblings(cpu) (cpu_core_map[cpu])
|
|
#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
|
|
#define smt_capable() (smp_num_siblings > 1)
|
|
#endif
|
|
|
|
extern void arch_fix_phys_package_id(int num, u32 slot);
|
|
|
|
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
|
|
CPU_MASK_ALL : \
|
|
node_to_cpumask(pcibus_to_node(bus)) \
|
|
)
|
|
|
|
#include <asm-generic/topology.h>
|
|
|
|
#endif /* _ASM_IA64_TOPOLOGY_H */
|