diff options
Diffstat (limited to 'arch/x86/include/asm/topology.h')
| -rw-r--r-- | arch/x86/include/asm/topology.h | 47 |
1 files changed, 31 insertions, 16 deletions
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 90ac7718469a..4e2f2e0aab27 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -61,13 +61,19 @@ static inline int cpu_to_node(int cpu) * * Side note: this function creates the returned cpumask on the stack * so with a high NR_CPUS count, excessive stack space is used. The - * node_to_cpumask_ptr function should be used whenever possible. + * cpumask_of_node function should be used whenever possible. */ static inline cpumask_t node_to_cpumask(int node) { return node_to_cpumask_map[node]; } +/* Returns a bitmask of CPUs on Node 'node'. */ +static inline const struct cpumask *cpumask_of_node(int node) +{ + return &node_to_cpumask_map[node]; +} + #else /* CONFIG_X86_64 */ /* Mappings between node number and cpus on that node. */ @@ -82,7 +88,7 @@ DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); #ifdef CONFIG_DEBUG_PER_CPU_MAPS extern int cpu_to_node(int cpu); extern int early_cpu_to_node(int cpu); -extern const cpumask_t *_node_to_cpumask_ptr(int node); +extern const cpumask_t *cpumask_of_node(int node); extern cpumask_t node_to_cpumask(int node); #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ @@ -103,7 +109,7 @@ static inline int early_cpu_to_node(int cpu) } /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ -static inline const cpumask_t *_node_to_cpumask_ptr(int node) +static inline const cpumask_t *cpumask_of_node(int node) { return &node_to_cpumask_map[node]; } @@ -116,12 +122,15 @@ static inline cpumask_t node_to_cpumask(int node) #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ -/* Replace default node_to_cpumask_ptr with optimized version */ +/* + * Replace default node_to_cpumask_ptr with optimized version + * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" + */ #define node_to_cpumask_ptr(v, node) \ - const cpumask_t *v = _node_to_cpumask_ptr(node) + const cpumask_t *v = cpumask_of_node(node) #define node_to_cpumask_ptr_next(v, node) \ - v = _node_to_cpumask_ptr(node) + v = cpumask_of_node(node) #endif /* CONFIG_X86_64 */ @@ -154,7 +163,7 @@ extern unsigned long node_remap_size[]; #endif -/* sched_domains SD_NODE_INIT for NUMAQ machines */ +/* sched_domains SD_NODE_INIT for NUMA machines */ #define SD_NODE_INIT (struct sched_domain) { \ .min_interval = 8, \ .max_interval = 32, \ @@ -169,8 +178,9 @@ extern unsigned long node_remap_size[]; .flags = SD_LOAD_BALANCE \ | SD_BALANCE_EXEC \ | SD_BALANCE_FORK \ - | SD_SERIALIZE \ - | SD_WAKE_BALANCE, \ + | SD_WAKE_AFFINE \ + | SD_WAKE_BALANCE \ + | SD_SERIALIZE, \ .last_balance = jiffies, \ .balance_interval = 1, \ } @@ -186,7 +196,7 @@ extern int __node_distance(int, int); #define cpu_to_node(cpu) 0 #define early_cpu_to_node(cpu) 0 -static inline const cpumask_t *_node_to_cpumask_ptr(int node) +static inline const cpumask_t *cpumask_of_node(int node) { return &cpu_online_map; } @@ -199,12 +209,15 @@ static inline int node_to_first_cpu(int node) return first_cpu(cpu_online_map); } -/* Replace default node_to_cpumask_ptr with optimized version */ +/* + * Replace default node_to_cpumask_ptr with optimized version + * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" + */ #define node_to_cpumask_ptr(v, node) \ - const cpumask_t *v = _node_to_cpumask_ptr(node) + const cpumask_t *v = cpumask_of_node(node) #define node_to_cpumask_ptr_next(v, node) \ - v = _node_to_cpumask_ptr(node) + v = cpumask_of_node(node) #endif #include <asm-generic/topology.h> @@ -213,18 +226,20 @@ static inline int node_to_first_cpu(int node) /* Returns the number of the first CPU on Node 'node'. */ static inline int node_to_first_cpu(int node) { - node_to_cpumask_ptr(mask, node); - return first_cpu(*mask); + return cpumask_first(cpumask_of_node(node)); } #endif extern cpumask_t cpu_coregroup_map(int cpu); +extern const struct cpumask *cpu_coregroup_mask(int cpu); #ifdef ENABLE_TOPO_DEFINES #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) #define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu)) #define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) +#define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu)) +#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) /* indicates that pointers to the topology cpumask_t maps are valid */ #define arch_provides_topology_pointers yes @@ -238,7 +253,7 @@ struct pci_bus; void set_pci_bus_resources_arch_default(struct pci_bus *b); #ifdef CONFIG_SMP -#define mc_capable() (boot_cpu_data.x86_max_cores > 1) +#define mc_capable() (cpus_weight(per_cpu(cpu_core_map, 0)) != nr_cpu_ids) #define smt_capable() (smp_num_siblings > 1) #endif |