| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 |
| 21 | /* |
| 22 | * Returns the number of the node containing CPU 'cpu' |
| 23 | */ |
| 24 | #define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu]) |
| 25 | |
| 26 | /* |
| 27 | * Returns a bitmask of CPUs on Node 'node'. |
| 28 | */ |
| 29 | #define node_to_cpumask(node) (node_to_cpu_mask[node]) |
| 30 | |
| 31 | /* |
| 32 | * Returns the number of the node containing Node 'nid'. |
| 33 | * Not implemented here. Multi-level hierarchies detected with |
| 34 | * the help of node_distance(). |
| 35 | */ |
| 36 | #define parent_node(nid) (nid) |
| 37 | |
| 38 | /* |
| 39 | * Returns the number of the first CPU on Node 'node'. |
| 40 | */ |
| 41 | #define node_to_first_cpu(node) (__ffs(node_to_cpumask(node))) |
| 42 | |
| 43 | void build_cpu_to_node_map(void); |
| 44 | |
| 45 | /* sched_domains SD_NODE_INIT for IA64 NUMA machines */ |
| 46 | #define SD_NODE_INIT (struct sched_domain) { \ |
| 47 | .span = CPU_MASK_NONE, \ |
| 48 | .parent = NULL, \ |
| 49 | .groups = NULL, \ |
| 50 | .min_interval = 80, \ |
| 51 | .max_interval = 320, \ |
| 52 | .busy_factor = 320, \ |
| 53 | .imbalance_pct = 125, \ |
| 54 | .cache_hot_time = (10*1000000), \ |
| 55 | .cache_nice_tries = 1, \ |
| 56 | .per_cpu_gain = 100, \ |
| 57 | .flags = SD_LOAD_BALANCE \ |
| 58 | | SD_BALANCE_EXEC \ |
| 59 | | SD_BALANCE_NEWIDLE \ |
| 60 | | SD_WAKE_IDLE \ |
| 61 | | SD_WAKE_BALANCE, \ |
| 62 | .last_balance = jiffies, \ |
| 63 | .balance_interval = 1, \ |
| 64 | .nr_balance_failed = 0, \ |
| 65 | } |
| 66 | |
| 67 | /* sched_domains SD_ALLNODES_INIT for IA64 NUMA machines */ |
| 68 | #define SD_ALLNODES_INIT (struct sched_domain) { \ |
| 69 | .span = CPU_MASK_NONE, \ |
| 70 | .parent = NULL, \ |
| 71 | .groups = NULL, \ |
| 72 | .min_interval = 80, \ |
| 73 | .max_interval = 320, \ |
| 74 | .busy_factor = 320, \ |
| 75 | .imbalance_pct = 125, \ |
| 76 | .cache_hot_time = (10*1000000), \ |
| 77 | .cache_nice_tries = 1, \ |
| 78 | .per_cpu_gain = 100, \ |
| 79 | .flags = SD_LOAD_BALANCE \ |
| 80 | | SD_BALANCE_EXEC, \ |
| 81 | .last_balance = jiffies, \ |
| 82 | .balance_interval = 100*(63+num_online_cpus())/64, \ |
| 83 | .nr_balance_failed = 0, \ |
| 84 | } |
| 85 | |
| 86 | #endif /* CONFIG_NUMA */ |
| 87 | |
| 88 | #include <asm-generic/topology.h> |
| 89 | |
| 90 | #endif /* _ASM_IA64_TOPOLOGY_H */ |