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-rw-r--r--include/linux/topology.h54
1 files changed, 36 insertions, 18 deletions
diff --git a/include/linux/topology.h b/include/linux/topology.h
index eb2fe6edd73c..4564faafd0e1 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -48,6 +48,7 @@ int arch_update_cpu_topology(void);
/* Conform to ACPI 2.0 SLIT distance definitions */
#define LOCAL_DISTANCE 10
#define REMOTE_DISTANCE 20
+#define DISTANCE_BITS 8
#ifndef node_distance
#define node_distance(from,to) ((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
#endif
@@ -130,20 +131,11 @@ static inline int numa_node_id(void)
* Use the accessor functions set_numa_mem(), numa_mem_id() and cpu_to_mem().
*/
DECLARE_PER_CPU(int, _numa_mem_);
-extern int _node_numa_mem_[MAX_NUMNODES];
#ifndef set_numa_mem
static inline void set_numa_mem(int node)
{
this_cpu_write(_numa_mem_, node);
- _node_numa_mem_[numa_node_id()] = node;
-}
-#endif
-
-#ifndef node_to_mem_node
-static inline int node_to_mem_node(int node)
-{
- return _node_numa_mem_[node];
}
#endif
@@ -166,7 +158,6 @@ static inline int cpu_to_mem(int cpu)
static inline void set_cpu_numa_mem(int cpu, int node)
{
per_cpu(_numa_mem_, cpu) = node;
- _node_numa_mem_[cpu_to_node(cpu)] = node;
}
#endif
@@ -180,13 +171,6 @@ static inline int numa_mem_id(void)
}
#endif
-#ifndef node_to_mem_node
-static inline int node_to_mem_node(int node)
-{
- return node;
-}
-#endif
-
#ifndef cpu_to_mem
static inline int cpu_to_mem(int cpu)
{
@@ -196,26 +180,60 @@ static inline int cpu_to_mem(int cpu)
#endif /* [!]CONFIG_HAVE_MEMORYLESS_NODES */
+#if defined(topology_die_id) && defined(topology_die_cpumask)
+#define TOPOLOGY_DIE_SYSFS
+#endif
+#if defined(topology_cluster_id) && defined(topology_cluster_cpumask)
+#define TOPOLOGY_CLUSTER_SYSFS
+#endif
+#if defined(topology_book_id) && defined(topology_book_cpumask)
+#define TOPOLOGY_BOOK_SYSFS
+#endif
+#if defined(topology_drawer_id) && defined(topology_drawer_cpumask)
+#define TOPOLOGY_DRAWER_SYSFS
+#endif
+
#ifndef topology_physical_package_id
#define topology_physical_package_id(cpu) ((void)(cpu), -1)
#endif
#ifndef topology_die_id
#define topology_die_id(cpu) ((void)(cpu), -1)
#endif
+#ifndef topology_cluster_id
+#define topology_cluster_id(cpu) ((void)(cpu), -1)
+#endif
#ifndef topology_core_id
#define topology_core_id(cpu) ((void)(cpu), 0)
#endif
+#ifndef topology_book_id
+#define topology_book_id(cpu) ((void)(cpu), -1)
+#endif
+#ifndef topology_drawer_id
+#define topology_drawer_id(cpu) ((void)(cpu), -1)
+#endif
+#ifndef topology_ppin
+#define topology_ppin(cpu) ((void)(cpu), 0ull)
+#endif
#ifndef topology_sibling_cpumask
#define topology_sibling_cpumask(cpu) cpumask_of(cpu)
#endif
#ifndef topology_core_cpumask
#define topology_core_cpumask(cpu) cpumask_of(cpu)
#endif
+#ifndef topology_cluster_cpumask
+#define topology_cluster_cpumask(cpu) cpumask_of(cpu)
+#endif
#ifndef topology_die_cpumask
#define topology_die_cpumask(cpu) cpumask_of(cpu)
#endif
+#ifndef topology_book_cpumask
+#define topology_book_cpumask(cpu) cpumask_of(cpu)
+#endif
+#ifndef topology_drawer_cpumask
+#define topology_drawer_cpumask(cpu) cpumask_of(cpu)
+#endif
-#ifdef CONFIG_SCHED_SMT
+#if defined(CONFIG_SCHED_SMT) && !defined(cpu_smt_mask)
static inline const struct cpumask *cpu_smt_mask(int cpu)
{
return topology_sibling_cpumask(cpu);