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| Rev | Author | Line No. | Line |
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| 6588 | serge | 1 | /* |
| 2 | * Written by: Matthew Dobson, IBM Corporation |
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| 3 | * |
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| 4 | * Copyright (C) 2002, IBM Corp. |
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| 5 | * |
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| 6 | * All rights reserved. |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or modify |
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| 9 | * it under the terms of the GNU General Public License as published by |
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| 10 | * the Free Software Foundation; either version 2 of the License, or |
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| 11 | * (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, but |
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
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| 16 | * NON INFRINGEMENT. See the GNU General Public License for more |
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| 17 | * details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this program; if not, write to the Free Software |
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| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * Send feedback to |
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| 24 | */ |
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| 25 | #ifndef _ASM_X86_TOPOLOGY_H |
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| 26 | #define _ASM_X86_TOPOLOGY_H |
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| 27 | |||
| 28 | #ifdef CONFIG_X86_32 |
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| 29 | # ifdef CONFIG_SMP |
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| 30 | # define ENABLE_TOPO_DEFINES |
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| 31 | # endif |
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| 32 | #else |
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| 33 | # ifdef CONFIG_SMP |
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| 34 | # define ENABLE_TOPO_DEFINES |
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| 35 | # endif |
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| 36 | #endif |
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| 37 | |||
| 38 | /* |
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| 39 | * to preserve the visibility of NUMA_NO_NODE definition, |
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| 40 | * moved to there from here. May be used independent of |
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| 41 | * CONFIG_NUMA. |
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| 42 | */ |
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| 43 | #include |
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| 44 | |||
| 45 | #ifdef CONFIG_NUMA |
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| 46 | #include |
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| 47 | |||
| 48 | #include |
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| 49 | |||
| 50 | /* Mappings between logical cpu number and node number */ |
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| 51 | DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); |
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| 52 | |||
| 53 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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| 54 | /* |
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| 55 | * override generic percpu implementation of cpu_to_node |
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| 56 | */ |
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| 57 | extern int __cpu_to_node(int cpu); |
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| 58 | #define cpu_to_node __cpu_to_node |
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| 59 | |||
| 60 | extern int early_cpu_to_node(int cpu); |
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| 61 | |||
| 62 | #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
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| 63 | |||
| 64 | /* Same function but used if called before per_cpu areas are setup */ |
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| 65 | static inline int early_cpu_to_node(int cpu) |
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| 66 | { |
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| 67 | return early_per_cpu(x86_cpu_to_node_map, cpu); |
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| 68 | } |
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| 69 | |||
| 70 | #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
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| 71 | |||
| 72 | /* Mappings between node number and cpus on that node. */ |
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| 73 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
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| 74 | |||
| 75 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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| 76 | extern const struct cpumask *cpumask_of_node(int node); |
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| 77 | #else |
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| 78 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
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| 79 | static inline const struct cpumask *cpumask_of_node(int node) |
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| 80 | { |
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| 81 | return node_to_cpumask_map[node]; |
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| 82 | } |
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| 83 | #endif |
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| 84 | |||
| 85 | extern void setup_node_to_cpumask_map(void); |
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| 86 | |||
| 87 | /* |
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| 88 | * Returns the number of the node containing Node 'node'. This |
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| 89 | * architecture is flat, so it is a pretty simple function! |
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| 90 | */ |
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| 91 | #define parent_node(node) (node) |
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| 92 | |||
| 93 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
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| 94 | |||
| 95 | extern int __node_distance(int, int); |
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| 96 | #define node_distance(a, b) __node_distance(a, b) |
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| 97 | |||
| 98 | #else /* !CONFIG_NUMA */ |
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| 99 | |||
| 100 | static inline int numa_node_id(void) |
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| 101 | { |
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| 102 | return 0; |
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| 103 | } |
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| 104 | /* |
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| 105 | * indicate override: |
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| 106 | */ |
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| 107 | #define numa_node_id numa_node_id |
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| 108 | |||
| 109 | static inline int early_cpu_to_node(int cpu) |
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| 110 | { |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |||
| 114 | static inline void setup_node_to_cpumask_map(void) { } |
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| 115 | |||
| 116 | #endif |
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| 117 | |||
| 118 | #include |
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| 119 | |||
| 120 | extern const struct cpumask *cpu_coregroup_mask(int cpu); |
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| 121 | |||
| 7143 | serge | 122 | #define topology_logical_package_id(cpu) (cpu_data(cpu).logical_proc_id) |
| 6588 | serge | 123 | #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) |
| 124 | #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) |
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| 125 | |||
| 126 | #ifdef ENABLE_TOPO_DEFINES |
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| 127 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
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| 128 | #define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
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| 7143 | serge | 129 | |
| 130 | extern unsigned int __max_logical_packages; |
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| 131 | #define topology_max_packages() (__max_logical_packages) |
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| 132 | int topology_update_package_map(unsigned int apicid, unsigned int cpu); |
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| 133 | extern int topology_phys_to_logical_pkg(unsigned int pkg); |
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| 134 | #else |
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| 135 | #define topology_max_packages() (1) |
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| 136 | static inline int |
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| 137 | topology_update_package_map(unsigned int apicid, unsigned int cpu) { return 0; } |
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| 138 | static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; } |
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| 6588 | serge | 139 | #endif |
| 140 | |||
| 141 | static inline void arch_fix_phys_package_id(int num, u32 slot) |
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| 142 | { |
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| 143 | } |
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| 144 | |||
| 145 | struct pci_bus; |
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| 146 | int x86_pci_root_bus_node(int bus); |
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| 147 | void x86_pci_root_bus_resources(int bus, struct list_head *resources); |
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| 148 | |||
| 149 | #endif /* _ASM_X86_TOPOLOGY_H */ |