148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef _ASM_POWERPC_TOPOLOGY_H
|
||
|
|
#define _ASM_POWERPC_TOPOLOGY_H
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
|
||
|
|
|
||
|
|
struct device;
|
||
|
|
struct device_node;
|
||
|
|
|
||
|
|
#ifdef CONFIG_NUMA
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that
|
||
|
|
* all zones on all nodes will be eligible for zone_reclaim().
|
||
|
|
*/
|
||
|
|
#define RECLAIM_DISTANCE 10
|
||
|
|
|
||
|
|
#include <asm/mmzone.h>
|
||
|
|
|
||
|
|
#define cpumask_of_node(node) ((node) == -1 ? \
|
||
|
|
cpu_all_mask : \
|
||
|
|
node_to_cpumask_map[node])
|
||
|
|
|
||
|
|
struct pci_bus;
|
||
|
|
#ifdef CONFIG_PCI
|
||
|
|
extern int pcibus_to_node(struct pci_bus *bus);
|
||
|
|
#else
|
||
|
|
static inline int pcibus_to_node(struct pci_bus *bus)
|
||
|
|
{
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
|
||
|
|
cpu_all_mask : \
|
||
|
|
cpumask_of_node(pcibus_to_node(bus)))
|
||
|
|
|
||
|
|
extern int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc);
|
||
|
|
extern int __node_distance(int, int);
|
||
|
|
#define node_distance(a, b) __node_distance(a, b)
|
||
|
|
|
||
|
|
extern void __init dump_numa_cpu_topology(void);
|
||
|
|
|
||
|
|
extern int sysfs_add_device_to_node(struct device *dev, int nid);
|
||
|
|
extern void sysfs_remove_device_from_node(struct device *dev, int nid);
|
||
|
|
extern int numa_update_cpu_topology(bool cpus_locked);
|
||
|
|
|
||
|
|
static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node)
|
||
|
|
{
|
||
|
|
numa_cpu_lookup_table[cpu] = node;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int early_cpu_to_node(int cpu)
|
||
|
|
{
|
||
|
|
int nid;
|
||
|
|
|
||
|
|
nid = numa_cpu_lookup_table[cpu];
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Fall back to node 0 if nid is unset (it should be, except bugs).
|
||
|
|
* This allows callers to safely do NODE_DATA(early_cpu_to_node(cpu)).
|
||
|
|
*/
|
||
|
|
return (nid < 0) ? 0 : nid;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
|
||
|
|
static inline int early_cpu_to_node(int cpu) { return 0; }
|
||
|
|
|
||
|
|
static inline void dump_numa_cpu_topology(void) {}
|
||
|
|
|
||
|
|
static inline int sysfs_add_device_to_node(struct device *dev, int nid)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void sysfs_remove_device_from_node(struct device *dev,
|
||
|
|
int nid)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int numa_update_cpu_topology(bool cpus_locked)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) {}
|
||
|
|
|
||
|
|
static inline int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* CONFIG_NUMA */
|
||
|
|
|
||
|
|
#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
|
||
|
|
extern int start_topology_update(void);
|
||
|
|
extern int stop_topology_update(void);
|
||
|
|
extern int prrn_is_enabled(void);
|
||
|
|
extern int find_and_online_cpu_nid(int cpu);
|
||
|
|
extern int timed_topology_update(int nsecs);
|
||
|
|
extern void __init shared_proc_topology_init(void);
|
||
|
|
#else
|
||
|
|
static inline int start_topology_update(void)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline int stop_topology_update(void)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline int prrn_is_enabled(void)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline int find_and_online_cpu_nid(int cpu)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static inline int timed_topology_update(int nsecs)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_SMP
|
||
|
|
static inline void shared_proc_topology_init(void) {}
|
||
|
|
#endif
|
||
|
|
#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
|
||
|
|
|
||
|
|
#include <asm-generic/topology.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_SMP
|
||
|
|
#include <asm/cputable.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_PPC64
|
||
|
|
#include <asm/smp.h>
|
||
|
|
|
||
|
|
#define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu))
|
||
|
|
#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
|
||
|
|
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
|
||
|
|
#define topology_core_id(cpu) (cpu_to_core_id(cpu))
|
||
|
|
|
||
|
|
int dlpar_cpu_readd(int cpu);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __KERNEL__ */
|
||
|
|
#endif /* _ASM_POWERPC_TOPOLOGY_H */
|