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-rw-r--r--arch/x86/include/asm/topology.h108
1 files changed, 35 insertions, 73 deletions
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 4e2f2e0aab2..e3f4198371a 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -44,9 +44,6 @@
#ifdef CONFIG_X86_32
-/* Mappings between node number and cpus on that node. */
-extern cpumask_t node_to_cpumask_map[];
-
/* Mappings between logical cpu number and node number */
extern int cpu_to_node_map[];
@@ -57,39 +54,18 @@ static inline int cpu_to_node(int cpu)
}
#define early_cpu_to_node(cpu) cpu_to_node(cpu)
-/* Returns a bitmask of CPUs on Node 'node'.
- *
- * Side note: this function creates the returned cpumask on the stack
- * so with a high NR_CPUS count, excessive stack space is used. The
- * 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. */
-extern cpumask_t *node_to_cpumask_map;
-
/* Mappings between logical cpu number and node number */
DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
/* Returns the number of the current Node. */
-#define numa_node_id() read_pda(nodenumber)
+DECLARE_PER_CPU(int, node_number);
+#define numa_node_id() percpu_read(node_number)
#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 *cpumask_of_node(int node);
-extern cpumask_t node_to_cpumask(int node);
#else /* !CONFIG_DEBUG_PER_CPU_MAPS */
@@ -102,37 +78,27 @@ static inline int cpu_to_node(int cpu)
/* Same function but used if called before per_cpu areas are setup */
static inline int early_cpu_to_node(int cpu)
{
- if (early_per_cpu_ptr(x86_cpu_to_node_map))
- return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
-
- return per_cpu(x86_cpu_to_node_map, cpu);
+ return early_per_cpu(x86_cpu_to_node_map, cpu);
}
-/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
-static inline const cpumask_t *cpumask_of_node(int node)
-{
- return &node_to_cpumask_map[node];
-}
+#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
+
+#endif /* CONFIG_X86_64 */
-/* Returns a bitmask of CPUs on Node 'node'. */
-static inline cpumask_t node_to_cpumask(int node)
+/* Mappings between node number and cpus on that node. */
+extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
+
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+extern const struct cpumask *cpumask_of_node(int node);
+#else
+/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
+static inline const struct cpumask *cpumask_of_node(int node)
{
return node_to_cpumask_map[node];
}
+#endif
-#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
-
-/*
- * 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 = cpumask_of_node(node)
-
-#define node_to_cpumask_ptr_next(v, node) \
- v = cpumask_of_node(node)
-
-#endif /* CONFIG_X86_64 */
+extern void setup_node_to_cpumask_map(void);
/*
* Returns the number of the node containing Node 'node'. This
@@ -141,7 +107,6 @@ static inline cpumask_t node_to_cpumask(int node)
#define parent_node(node) (node)
#define pcibus_to_node(bus) __pcibus_to_node(bus)
-#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus)
#ifdef CONFIG_X86_32
extern unsigned long node_start_pfn[];
@@ -192,32 +157,32 @@ extern int __node_distance(int, int);
#else /* !CONFIG_NUMA */
-#define numa_node_id() 0
-#define cpu_to_node(cpu) 0
-#define early_cpu_to_node(cpu) 0
+static inline int numa_node_id(void)
+{
+ return 0;
+}
+
+static inline int cpu_to_node(int cpu)
+{
+ return 0;
+}
-static inline const cpumask_t *cpumask_of_node(int node)
+static inline int early_cpu_to_node(int cpu)
{
- return &cpu_online_map;
+ return 0;
}
-static inline cpumask_t node_to_cpumask(int node)
+
+static inline const struct cpumask *cpumask_of_node(int node)
{
- return cpu_online_map;
+ return cpu_online_mask;
}
static inline int node_to_first_cpu(int node)
{
- return first_cpu(cpu_online_map);
+ return cpumask_first(cpu_online_mask);
}
-/*
- * 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 = cpumask_of_node(node)
+static inline void setup_node_to_cpumask_map(void) { }
-#define node_to_cpumask_ptr_next(v, node) \
- v = cpumask_of_node(node)
#endif
#include <asm-generic/topology.h>
@@ -230,16 +195,13 @@ static inline int node_to_first_cpu(int 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))
+#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
@@ -253,7 +215,7 @@ struct pci_bus;
void set_pci_bus_resources_arch_default(struct pci_bus *b);
#ifdef CONFIG_SMP
-#define mc_capable() (cpus_weight(per_cpu(cpu_core_map, 0)) != nr_cpu_ids)
+#define mc_capable() (cpumask_weight(cpu_core_mask(0)) != nr_cpu_ids)
#define smt_capable() (smp_num_siblings > 1)
#endif