*
* 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];
+}
+
+static inline void setup_node_to_cpumask_map(void) { }
+
#else /* CONFIG_X86_64 */
/* Mappings between node number and cpus on that node. */
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 *_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 */
/* 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 *_node_to_cpumask_ptr(int node)
+static inline const cpumask_t *cpumask_of_node(int node)
{
return &node_to_cpumask_map[node];
}
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
-/* Replace default node_to_cpumask_ptr with optimized version */
+extern void setup_node_to_cpumask_map(void);
+
+/*
+ * 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 */
#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[];
#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 const cpumask_t *_node_to_cpumask_ptr(int node)
+static inline int cpu_to_node(int cpu)
+{
+ return 0;
+}
+
+static inline int early_cpu_to_node(int cpu)
+{
+ return 0;
+}
+
+static inline const cpumask_t *cpumask_of_node(int node)
{
return &cpu_online_map;
}
return first_cpu(cpu_online_map);
}
-/* Replace default node_to_cpumask_ptr with optimized version */
+static inline void setup_node_to_cpumask_map(void) { }
+
+/*
+ * 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>
/* 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))