projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1da177e4 LT |
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 | |
| 8d08aed8 JS |
19 | |
| 20 | /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */ | |
| 21 | #define PENALTY_FOR_NODE_WITH_CPUS 255 | |
| 22 | ||
| e5ecc192 CL |
23 | /* |
| 24 | * Distance above which we begin to use zone reclaim | |
| 25 | */ | |
| 26 | #define RECLAIM_DISTANCE 15 | |
| 27 | ||
| 1da177e4 LT |
28 | /* |
| 29 | * Returns a bitmask of CPUs on Node 'node'. | |
| 30 | */ | |
| 1d1e9f04 AB |
31 | #define cpumask_of_node(node) ((node) == -1 ? \ |
| 32 | cpu_all_mask : \ | |
| 33 | &node_to_cpu_mask[node]) | |
| 1da177e4 LT |
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 | ||
| 514604c6 CL |
42 | /* |
| 43 | * Determines the node for a given pci bus | |
| 44 | */ | |
| 45 | #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node | |
| 46 | ||
| 1da177e4 LT |
47 | void build_cpu_to_node_map(void); |
| 48 | ||
| 687f1661 | 49 | #define SD_CPU_INIT (struct sched_domain) { \ |
| 687f1661 | 50 | .parent = NULL, \ |
| 1a848870 | 51 | .child = NULL, \ |
| 687f1661 NP |
52 | .groups = NULL, \ |
| 53 | .min_interval = 1, \ | |
| 54 | .max_interval = 4, \ | |
| 55 | .busy_factor = 64, \ | |
| 56 | .imbalance_pct = 125, \ | |
| 687f1661 NP |
57 | .cache_nice_tries = 2, \ |
| 58 | .busy_idx = 2, \ | |
| 59 | .idle_idx = 1, \ | |
| 0ec9fab3 | 60 | .newidle_idx = 0, \ |
| 78e7ed53 | 61 | .wake_idx = 0, \ |
| b8a543ea | 62 | .forkexec_idx = 0, \ |
| 687f1661 NP |
63 | .flags = SD_LOAD_BALANCE \ |
| 64 | | SD_BALANCE_NEWIDLE \ | |
| 65 | | SD_BALANCE_EXEC \ | |
| 78e7ed53 | 66 | | SD_BALANCE_FORK \ |
| 687f1661 NP |
67 | | SD_WAKE_AFFINE, \ |
| 68 | .last_balance = jiffies, \ | |
| 69 | .balance_interval = 1, \ | |
| 70 | .nr_balance_failed = 0, \ | |
| 71 | } | |
| 72 | ||
| 1da177e4 LT |
73 | /* sched_domains SD_NODE_INIT for IA64 NUMA machines */ |
| 74 | #define SD_NODE_INIT (struct sched_domain) { \ | |
| 1da177e4 | 75 | .parent = NULL, \ |
| 1a848870 | 76 | .child = NULL, \ |
| 1da177e4 | 77 | .groups = NULL, \ |
| 687f1661 | 78 | .min_interval = 8, \ |
| c99dbbe9 | 79 | .max_interval = 8*(min(num_online_cpus(), 32U)), \ |
| 687f1661 | 80 | .busy_factor = 64, \ |
| 1da177e4 | 81 | .imbalance_pct = 125, \ |
| 687f1661 NP |
82 | .cache_nice_tries = 2, \ |
| 83 | .busy_idx = 3, \ | |
| 84 | .idle_idx = 2, \ | |
| 0ec9fab3 | 85 | .newidle_idx = 0, \ |
| 78e7ed53 | 86 | .wake_idx = 0, \ |
| b8a543ea | 87 | .forkexec_idx = 0, \ |
| 1da177e4 | 88 | .flags = SD_LOAD_BALANCE \ |
| 0ec9fab3 | 89 | | SD_BALANCE_NEWIDLE \ |
| 1da177e4 | 90 | | SD_BALANCE_EXEC \ |
| 687f1661 | 91 | | SD_BALANCE_FORK \ |
| c88d5910 | 92 | | SD_SERIALIZE, \ |
| 1da177e4 | 93 | .last_balance = jiffies, \ |
| 687f1661 | 94 | .balance_interval = 64, \ |
| 1da177e4 LT |
95 | .nr_balance_failed = 0, \ |
| 96 | } | |
| 97 | ||
| 1da177e4 LT |
98 | #endif /* CONFIG_NUMA */ |
| 99 | ||
| 69dcc991 ZY |
100 | #ifdef CONFIG_SMP |
| 101 | #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) | |
| 102 | #define topology_core_id(cpu) (cpu_data(cpu)->core_id) | |
| 333af153 RR |
103 | #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) |
| 104 | #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) | |
| 5c45bf27 | 105 | #define smt_capable() (smp_num_siblings > 1) |
| 69dcc991 ZY |
106 | #endif |
| 107 | ||
| fe086a7b AC |
108 | extern void arch_fix_phys_package_id(int num, u32 slot); |
| 109 | ||
| fbb776c3 RR |
110 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
| 111 | cpu_all_mask : \ | |
| 36c401a4 | 112 | cpumask_of_node(pcibus_to_node(bus))) |
| fbb776c3 | 113 | |
| 1da177e4 LT |
114 | #include <asm-generic/topology.h> |
| 115 | ||
| 116 | #endif /* _ASM_IA64_TOPOLOGY_H */ |