Commit | Line | Data |
---|---|---|
3367e56f TG |
1 | /* |
2 | * Written by: Matthew Dobson, IBM Corporation | |
3 | * | |
4 | * Copyright (C) 2002, IBM Corp. | |
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 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
16 | * NON INFRINGEMENT. See the GNU General Public License for more | |
17 | * details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | * Send feedback to <colpatch@us.ibm.com> | |
24 | */ | |
1965aae3 PA |
25 | #ifndef _ASM_X86_TOPOLOGY_H |
26 | #define _ASM_X86_TOPOLOGY_H | |
3367e56f | 27 | |
5c3a121d VS |
28 | #ifdef CONFIG_X86_32 |
29 | # ifdef CONFIG_X86_HT | |
30 | # define ENABLE_TOPO_DEFINES | |
31 | # endif | |
32 | #else | |
33 | # ifdef CONFIG_SMP | |
34 | # define ENABLE_TOPO_DEFINES | |
35 | # endif | |
36 | #endif | |
37 | ||
4e25b257 LS |
38 | /* |
39 | * to preserve the visibility of NUMA_NO_NODE definition, | |
40 | * moved to there from here. May be used independent of | |
41 | * CONFIG_NUMA. | |
42 | */ | |
43 | #include <linux/numa.h> | |
23ca4bba | 44 | |
3367e56f TG |
45 | #ifdef CONFIG_NUMA |
46 | #include <linux/cpumask.h> | |
4e25b257 | 47 | |
3367e56f TG |
48 | #include <asm/mpspec.h> |
49 | ||
23ca4bba MT |
50 | /* Mappings between logical cpu number and node number */ |
51 | DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); | |
52 | ||
23ca4bba | 53 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
e534c7c5 LS |
54 | /* |
55 | * override generic percpu implementation of cpu_to_node | |
56 | */ | |
57 | extern int __cpu_to_node(int cpu); | |
58 | #define cpu_to_node __cpu_to_node | |
59 | ||
23ca4bba | 60 | extern int early_cpu_to_node(int cpu); |
3367e56f | 61 | |
23ca4bba MT |
62 | #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
63 | ||
23ca4bba MT |
64 | /* Same function but used if called before per_cpu areas are setup */ |
65 | static inline int early_cpu_to_node(int cpu) | |
66 | { | |
f10fcd47 | 67 | return early_per_cpu(x86_cpu_to_node_map, cpu); |
23ca4bba | 68 | } |
834beda1 | 69 | |
71ee73e7 RR |
70 | #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
71 | ||
71ee73e7 | 72 | /* Mappings between node number and cpus on that node. */ |
c032ef60 | 73 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
71ee73e7 RR |
74 | |
75 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS | |
73e907de | 76 | extern const struct cpumask *cpumask_of_node(int node); |
71ee73e7 | 77 | #else |
23ca4bba | 78 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
c032ef60 | 79 | static inline const struct cpumask *cpumask_of_node(int node) |
3367e56f TG |
80 | { |
81 | return node_to_cpumask_map[node]; | |
82 | } | |
71ee73e7 | 83 | #endif |
23ca4bba | 84 | |
6470aff6 BG |
85 | extern void setup_node_to_cpumask_map(void); |
86 | ||
23ca4bba MT |
87 | /* |
88 | * Returns the number of the node containing Node 'node'. This | |
89 | * architecture is flat, so it is a pretty simple function! | |
90 | */ | |
91 | #define parent_node(node) (node) | |
92 | ||
3367e56f | 93 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
3367e56f | 94 | |
3367e56f TG |
95 | extern int __node_distance(int, int); |
96 | #define node_distance(a, b) __node_distance(a, b) | |
3367e56f | 97 | |
23ca4bba MT |
98 | #else /* !CONFIG_NUMA */ |
99 | ||
f2a08271 MT |
100 | static inline int numa_node_id(void) |
101 | { | |
102 | return 0; | |
103 | } | |
72812019 LS |
104 | /* |
105 | * indicate override: | |
106 | */ | |
107 | #define numa_node_id numa_node_id | |
f2a08271 | 108 | |
f2a08271 MT |
109 | static inline int early_cpu_to_node(int cpu) |
110 | { | |
111 | return 0; | |
112 | } | |
23ca4bba | 113 | |
6470aff6 BG |
114 | static inline void setup_node_to_cpumask_map(void) { } |
115 | ||
3367e56f TG |
116 | #endif |
117 | ||
aa6b5446 MT |
118 | #include <asm-generic/topology.h> |
119 | ||
030bb203 | 120 | extern const struct cpumask *cpu_coregroup_mask(int cpu); |
3367e56f TG |
121 | |
122 | #ifdef ENABLE_TOPO_DEFINES | |
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) | |
7ad728f9 RR |
125 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
126 | #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) | |
23ca4bba MT |
127 | |
128 | /* indicates that pointers to the topology cpumask_t maps are valid */ | |
129 | #define arch_provides_topology_pointers yes | |
3367e56f TG |
130 | #endif |
131 | ||
fe086a7b AC |
132 | static inline void arch_fix_phys_package_id(int num, u32 slot) |
133 | { | |
134 | } | |
135 | ||
30a18d6c | 136 | struct pci_bus; |
2cd6975a | 137 | void x86_pci_root_bus_resources(int bus, struct list_head *resources); |
30a18d6c | 138 | |
3367e56f | 139 | #ifdef CONFIG_SMP |
2ff799d3 VS |
140 | #define mc_capable() ((boot_cpu_data.x86_max_cores > 1) && \ |
141 | (cpumask_weight(cpu_core_mask(0)) != nr_cpu_ids)) | |
3367e56f TG |
142 | #define smt_capable() (smp_num_siblings > 1) |
143 | #endif | |
144 | ||
871d5f8d YL |
145 | #ifdef CONFIG_NUMA |
146 | extern int get_mp_bus_to_node(int busnum); | |
147 | extern void set_mp_bus_to_node(int busnum, int node); | |
148 | #else | |
149 | static inline int get_mp_bus_to_node(int busnum) | |
150 | { | |
151 | return 0; | |
152 | } | |
153 | static inline void set_mp_bus_to_node(int busnum, int node) | |
154 | { | |
155 | } | |
156 | #endif | |
157 | ||
1965aae3 | 158 | #endif /* _ASM_X86_TOPOLOGY_H */ |