1 /* 2 * Copyright (C) 2002, Erich Focht, NEC 3 * 4 * All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 #ifndef _ASM_IA64_TOPOLOGY_H 12 #define _ASM_IA64_TOPOLOGY_H 13 14 #include <asm/acpi.h> 15 #include <asm/numa.h> 16 #include <asm/smp.h> 17 18 #ifdef CONFIG_NUMA 19 20 /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */ 21 #define PENALTY_FOR_NODE_WITH_CPUS 255 22 23 /* 24 * Distance above which we begin to use zone reclaim 25 */ 26 #define RECLAIM_DISTANCE 15 27 28 /* 29 * Returns a bitmask of CPUs on Node 'node'. 30 */ 31 #define cpumask_of_node(node) ((node) == -1 ? \ 32 cpu_all_mask : \ 33 &node_to_cpu_mask[node]) 34 35 /* 36 * Returns the number of the node containing Node 'nid'. 37 * Not implemented here. Multi-level hierarchies detected with 38 * the help of node_distance(). 39 */ 40 #define parent_node(nid) (nid) 41 42 /* 43 * Determines the node for a given pci bus 44 */ 45 #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node 46 47 void build_cpu_to_node_map(void); 48 49 #define SD_CPU_INIT (struct sched_domain) { \ 50 .parent = NULL, \ 51 .child = NULL, \ 52 .groups = NULL, \ 53 .min_interval = 1, \ 54 .max_interval = 4, \ 55 .busy_factor = 64, \ 56 .imbalance_pct = 125, \ 57 .cache_nice_tries = 2, \ 58 .busy_idx = 2, \ 59 .idle_idx = 1, \ 60 .newidle_idx = 0, \ 61 .wake_idx = 0, \ 62 .forkexec_idx = 0, \ 63 .flags = SD_LOAD_BALANCE \ 64 | SD_BALANCE_NEWIDLE \ 65 | SD_BALANCE_EXEC \ 66 | SD_BALANCE_FORK \ 67 | SD_WAKE_AFFINE, \ 68 .last_balance = jiffies, \ 69 .balance_interval = 1, \ 70 .nr_balance_failed = 0, \ 71 } 72 73 #endif /* CONFIG_NUMA */ 74 75 #ifdef CONFIG_SMP 76 #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) 77 #define topology_core_id(cpu) (cpu_data(cpu)->core_id) 78 #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) 79 #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) 80 #define smt_capable() (smp_num_siblings > 1) 81 #endif 82 83 extern void arch_fix_phys_package_id(int num, u32 slot); 84 85 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ 86 cpu_all_mask : \ 87 cpumask_of_node(pcibus_to_node(bus))) 88 89 #include <asm-generic/topology.h> 90 91 #endif /* _ASM_IA64_TOPOLOGY_H */ 92