[deliverable/linux.git] / include / asm-ia64 / topology.h

/*
 * 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,			\
	.groups			= NULL,			\
	.min_interval		= 1,			\
	.max_interval		= 4,			\
	.busy_factor		= 64,			\
	.imbalance_pct		= 125,			\
	.per_cpu_gain		= 100,			\
	.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,			\
	.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		= 0, /* unused */	\
	.wake_idx		= 1,			\
	.forkexec_idx		= 1,			\
	.per_cpu_gain		= 100,			\
	.flags			= SD_LOAD_BALANCE	\
				| SD_BALANCE_EXEC	\
				| SD_BALANCE_FORK	\
				| 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)		(cpu_sibling_map[cpu])
#define smt_capable() 				(smp_num_siblings > 1)
#endif

#include <asm-generic/topology.h>

#endif /* _ASM_IA64_TOPOLOGY_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/asm-ia64/topology.h
	3	*
	4	* Copyright (C) 2002, Erich Focht, NEC
	5	*
	6	* All rights reserved.
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*/
	13	#ifndef _ASM_IA64_TOPOLOGY_H
	14	#define _ASM_IA64_TOPOLOGY_H
	15
	16	#include <asm/acpi.h>
	17	#include <asm/numa.h>
	18	#include <asm/smp.h>
	19
	20	#ifdef CONFIG_NUMA
8d08aed8 JS	21
	22	/* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
	23	#define PENALTY_FOR_NODE_WITH_CPUS 255
	24
e5ecc192 CL	25	/*
	26	* Distance above which we begin to use zone reclaim
	27	*/
	28	#define RECLAIM_DISTANCE 15
	29
1da177e4 LT	30	/*
	31	* Returns the number of the node containing CPU 'cpu'
	32	*/
	33	#define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
	34
	35	/*
	36	* Returns a bitmask of CPUs on Node 'node'.
	37	*/
	38	#define node_to_cpumask(node) (node_to_cpu_mask[node])
	39
	40	/*
	41	* Returns the number of the node containing Node 'nid'.
	42	* Not implemented here. Multi-level hierarchies detected with
	43	* the help of node_distance().
	44	*/
	45	#define parent_node(nid) (nid)
	46
	47	/*
	48	* Returns the number of the first CPU on Node 'node'.
	49	*/
c660439b	50	#define node_to_first_cpu(node) (first_cpu(node_to_cpumask(node)))
1da177e4	51
514604c6 CL	52	/*
	53	* Determines the node for a given pci bus
	54	*/
	55	#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
	56
1da177e4 LT	57	void build_cpu_to_node_map(void);
1da177e4 LT	58
687f1661 NP	59	#define SD_CPU_INIT (struct sched_domain) { \
	60	.span = CPU_MASK_NONE, \
	61	.parent = NULL, \
	62	.groups = NULL, \
	63	.min_interval = 1, \
	64	.max_interval = 4, \
	65	.busy_factor = 64, \
	66	.imbalance_pct = 125, \
687f1661 NP	67	.per_cpu_gain = 100, \
	68	.cache_nice_tries = 2, \
	69	.busy_idx = 2, \
	70	.idle_idx = 1, \
	71	.newidle_idx = 2, \
	72	.wake_idx = 1, \
	73	.forkexec_idx = 1, \
	74	.flags = SD_LOAD_BALANCE \
	75	\| SD_BALANCE_NEWIDLE \
	76	\| SD_BALANCE_EXEC \
	77	\| SD_WAKE_AFFINE, \
	78	.last_balance = jiffies, \
	79	.balance_interval = 1, \
	80	.nr_balance_failed = 0, \
	81	}
	82
1da177e4 LT	83	/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
	84	#define SD_NODE_INIT (struct sched_domain) { \
	85	.span = CPU_MASK_NONE, \
	86	.parent = NULL, \
	87	.groups = NULL, \
687f1661 NP	88	.min_interval = 8, \
	89	.max_interval = 8*(min(num_online_cpus(), 32)), \
	90	.busy_factor = 64, \
1da177e4	91	.imbalance_pct = 125, \
687f1661 NP	92	.cache_nice_tries = 2, \
	93	.busy_idx = 3, \
	94	.idle_idx = 2, \
	95	.newidle_idx = 0, /* unused */ \
	96	.wake_idx = 1, \
	97	.forkexec_idx = 1, \
1da177e4 LT	98	.per_cpu_gain = 100, \
	99	.flags = SD_LOAD_BALANCE \
	100	\| SD_BALANCE_EXEC \
687f1661	101	\| SD_BALANCE_FORK \
1da177e4 LT	102	\| SD_WAKE_BALANCE, \
1da177e4 LT	103	.last_balance = jiffies, \
687f1661	104	.balance_interval = 64, \
1da177e4 LT	105	.nr_balance_failed = 0, \
	106	}
	107
1da177e4 LT	108	#endif /* CONFIG_NUMA */
1da177e4 LT	109
69dcc991 ZY	110	#ifdef CONFIG_SMP
	111	#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
	112	#define topology_core_id(cpu) (cpu_data(cpu)->core_id)
	113	#define topology_core_siblings(cpu) (cpu_core_map[cpu])
	114	#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
5c45bf27	115	#define smt_capable() (smp_num_siblings > 1)
69dcc991 ZY	116	#endif
69dcc991 ZY	117
1da177e4 LT	118	#include <asm-generic/topology.h>
	119
	120	#endif /* _ASM_IA64_TOPOLOGY_H */