diff options
Diffstat (limited to 'arch/x86/include/asm/topology.h')
| -rw-r--r-- | arch/x86/include/asm/topology.h | 108 |
1 files changed, 35 insertions, 73 deletions
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 4e2f2e0aab27..e3f4198371a9 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h | |||
| @@ -44,9 +44,6 @@ | |||
| 44 | 44 | ||
| 45 | #ifdef CONFIG_X86_32 | 45 | #ifdef CONFIG_X86_32 |
| 46 | 46 | ||
| 47 | /* Mappings between node number and cpus on that node. */ | ||
| 48 | extern cpumask_t node_to_cpumask_map[]; | ||
| 49 | |||
| 50 | /* Mappings between logical cpu number and node number */ | 47 | /* Mappings between logical cpu number and node number */ |
| 51 | extern int cpu_to_node_map[]; | 48 | extern int cpu_to_node_map[]; |
| 52 | 49 | ||
| @@ -57,39 +54,18 @@ static inline int cpu_to_node(int cpu) | |||
| 57 | } | 54 | } |
| 58 | #define early_cpu_to_node(cpu) cpu_to_node(cpu) | 55 | #define early_cpu_to_node(cpu) cpu_to_node(cpu) |
| 59 | 56 | ||
| 60 | /* Returns a bitmask of CPUs on Node 'node'. | ||
| 61 | * | ||
| 62 | * Side note: this function creates the returned cpumask on the stack | ||
| 63 | * so with a high NR_CPUS count, excessive stack space is used. The | ||
| 64 | * cpumask_of_node function should be used whenever possible. | ||
| 65 | */ | ||
| 66 | static inline cpumask_t node_to_cpumask(int node) | ||
| 67 | { | ||
| 68 | return node_to_cpumask_map[node]; | ||
| 69 | } | ||
| 70 | |||
| 71 | /* Returns a bitmask of CPUs on Node 'node'. */ | ||
| 72 | static inline const struct cpumask *cpumask_of_node(int node) | ||
| 73 | { | ||
| 74 | return &node_to_cpumask_map[node]; | ||
| 75 | } | ||
| 76 | |||
| 77 | #else /* CONFIG_X86_64 */ | 57 | #else /* CONFIG_X86_64 */ |
| 78 | 58 | ||
| 79 | /* Mappings between node number and cpus on that node. */ | ||
| 80 | extern cpumask_t *node_to_cpumask_map; | ||
| 81 | |||
| 82 | /* Mappings between logical cpu number and node number */ | 59 | /* Mappings between logical cpu number and node number */ |
| 83 | DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); | 60 | DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); |
| 84 | 61 | ||
| 85 | /* Returns the number of the current Node. */ | 62 | /* Returns the number of the current Node. */ |
| 86 | #define numa_node_id() read_pda(nodenumber) | 63 | DECLARE_PER_CPU(int, node_number); |
| 64 | #define numa_node_id() percpu_read(node_number) | ||
| 87 | 65 | ||
| 88 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS | 66 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
| 89 | extern int cpu_to_node(int cpu); | 67 | extern int cpu_to_node(int cpu); |
| 90 | extern int early_cpu_to_node(int cpu); | 68 | extern int early_cpu_to_node(int cpu); |
| 91 | extern const cpumask_t *cpumask_of_node(int node); | ||
| 92 | extern cpumask_t node_to_cpumask(int node); | ||
| 93 | 69 | ||
| 94 | #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ | 70 | #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
| 95 | 71 | ||
| @@ -102,37 +78,27 @@ static inline int cpu_to_node(int cpu) | |||
| 102 | /* Same function but used if called before per_cpu areas are setup */ | 78 | /* Same function but used if called before per_cpu areas are setup */ |
| 103 | static inline int early_cpu_to_node(int cpu) | 79 | static inline int early_cpu_to_node(int cpu) |
| 104 | { | 80 | { |
| 105 | if (early_per_cpu_ptr(x86_cpu_to_node_map)) | 81 | return early_per_cpu(x86_cpu_to_node_map, cpu); |
| 106 | return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu]; | ||
| 107 | |||
| 108 | return per_cpu(x86_cpu_to_node_map, cpu); | ||
| 109 | } | 82 | } |
| 110 | 83 | ||
| 111 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ | 84 | #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
| 112 | static inline const cpumask_t *cpumask_of_node(int node) | 85 | |
| 113 | { | 86 | #endif /* CONFIG_X86_64 */ |
| 114 | return &node_to_cpumask_map[node]; | ||
| 115 | } | ||
| 116 | 87 | ||
| 117 | /* Returns a bitmask of CPUs on Node 'node'. */ | 88 | /* Mappings between node number and cpus on that node. */ |
| 118 | static inline cpumask_t node_to_cpumask(int node) | 89 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
| 90 | |||
| 91 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS | ||
| 92 | extern const struct cpumask *cpumask_of_node(int node); | ||
| 93 | #else | ||
| 94 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ | ||
| 95 | static inline const struct cpumask *cpumask_of_node(int node) | ||
| 119 | { | 96 | { |
| 120 | return node_to_cpumask_map[node]; | 97 | return node_to_cpumask_map[node]; |
| 121 | } | 98 | } |
| 99 | #endif | ||
| 122 | 100 | ||
| 123 | #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ | 101 | extern void setup_node_to_cpumask_map(void); |
| 124 | |||
| 125 | /* | ||
| 126 | * Replace default node_to_cpumask_ptr with optimized version | ||
| 127 | * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" | ||
| 128 | */ | ||
| 129 | #define node_to_cpumask_ptr(v, node) \ | ||
| 130 | const cpumask_t *v = cpumask_of_node(node) | ||
| 131 | |||
| 132 | #define node_to_cpumask_ptr_next(v, node) \ | ||
| 133 | v = cpumask_of_node(node) | ||
| 134 | |||
| 135 | #endif /* CONFIG_X86_64 */ | ||
| 136 | 102 | ||
| 137 | /* | 103 | /* |
| 138 | * Returns the number of the node containing Node 'node'. This | 104 | * Returns the number of the node containing Node 'node'. This |
| @@ -141,7 +107,6 @@ static inline cpumask_t node_to_cpumask(int node) | |||
| 141 | #define parent_node(node) (node) | 107 | #define parent_node(node) (node) |
| 142 | 108 | ||
| 143 | #define pcibus_to_node(bus) __pcibus_to_node(bus) | 109 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
| 144 | #define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus) | ||
| 145 | 110 | ||
| 146 | #ifdef CONFIG_X86_32 | 111 | #ifdef CONFIG_X86_32 |
| 147 | extern unsigned long node_start_pfn[]; | 112 | extern unsigned long node_start_pfn[]; |
| @@ -192,32 +157,32 @@ extern int __node_distance(int, int); | |||
| 192 | 157 | ||
| 193 | #else /* !CONFIG_NUMA */ | 158 | #else /* !CONFIG_NUMA */ |
| 194 | 159 | ||
| 195 | #define numa_node_id() 0 | 160 | static inline int numa_node_id(void) |
| 196 | #define cpu_to_node(cpu) 0 | 161 | { |
| 197 | #define early_cpu_to_node(cpu) 0 | 162 | return 0; |
| 163 | } | ||
| 164 | |||
| 165 | static inline int cpu_to_node(int cpu) | ||
| 166 | { | ||
| 167 | return 0; | ||
| 168 | } | ||
| 198 | 169 | ||
| 199 | static inline const cpumask_t *cpumask_of_node(int node) | 170 | static inline int early_cpu_to_node(int cpu) |
| 200 | { | 171 | { |
| 201 | return &cpu_online_map; | 172 | return 0; |
| 202 | } | 173 | } |
| 203 | static inline cpumask_t node_to_cpumask(int node) | 174 | |
| 175 | static inline const struct cpumask *cpumask_of_node(int node) | ||
| 204 | { | 176 | { |
| 205 | return cpu_online_map; | 177 | return cpu_online_mask; |
| 206 | } | 178 | } |
| 207 | static inline int node_to_first_cpu(int node) | 179 | static inline int node_to_first_cpu(int node) |
| 208 | { | 180 | { |
| 209 | return first_cpu(cpu_online_map); | 181 | return cpumask_first(cpu_online_mask); |
| 210 | } | 182 | } |
| 211 | 183 | ||
| 212 | /* | 184 | static inline void setup_node_to_cpumask_map(void) { } |
| 213 | * Replace default node_to_cpumask_ptr with optimized version | ||
| 214 | * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" | ||
| 215 | */ | ||
| 216 | #define node_to_cpumask_ptr(v, node) \ | ||
| 217 | const cpumask_t *v = cpumask_of_node(node) | ||
| 218 | 185 | ||
| 219 | #define node_to_cpumask_ptr_next(v, node) \ | ||
| 220 | v = cpumask_of_node(node) | ||
| 221 | #endif | 186 | #endif |
| 222 | 187 | ||
| 223 | #include <asm-generic/topology.h> | 188 | #include <asm-generic/topology.h> |
| @@ -230,16 +195,13 @@ static inline int node_to_first_cpu(int node) | |||
| 230 | } | 195 | } |
| 231 | #endif | 196 | #endif |
| 232 | 197 | ||
| 233 | extern cpumask_t cpu_coregroup_map(int cpu); | ||
| 234 | extern const struct cpumask *cpu_coregroup_mask(int cpu); | 198 | extern const struct cpumask *cpu_coregroup_mask(int cpu); |
| 235 | 199 | ||
| 236 | #ifdef ENABLE_TOPO_DEFINES | 200 | #ifdef ENABLE_TOPO_DEFINES |
| 237 | #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) | 201 | #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) |
| 238 | #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) | 202 | #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) |
| 239 | #define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu)) | 203 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
| 240 | #define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) | 204 | #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
| 241 | #define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu)) | ||
| 242 | #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) | ||
| 243 | 205 | ||
| 244 | /* indicates that pointers to the topology cpumask_t maps are valid */ | 206 | /* indicates that pointers to the topology cpumask_t maps are valid */ |
| 245 | #define arch_provides_topology_pointers yes | 207 | #define arch_provides_topology_pointers yes |
| @@ -253,7 +215,7 @@ struct pci_bus; | |||
| 253 | void set_pci_bus_resources_arch_default(struct pci_bus *b); | 215 | void set_pci_bus_resources_arch_default(struct pci_bus *b); |
| 254 | 216 | ||
| 255 | #ifdef CONFIG_SMP | 217 | #ifdef CONFIG_SMP |
| 256 | #define mc_capable() (cpus_weight(per_cpu(cpu_core_map, 0)) != nr_cpu_ids) | 218 | #define mc_capable() (cpumask_weight(cpu_core_mask(0)) != nr_cpu_ids) |
| 257 | #define smt_capable() (smp_num_siblings > 1) | 219 | #define smt_capable() (smp_num_siblings > 1) |
| 258 | #endif | 220 | #endif |
| 259 | 221 | ||
