mirror of https://gitee.com/openkylin/linux.git
108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
#ifndef _ASM_POWERPC_TOPOLOGY_H
|
|
#define _ASM_POWERPC_TOPOLOGY_H
|
|
#ifdef __KERNEL__
|
|
|
|
|
|
struct device;
|
|
struct device_node;
|
|
|
|
#ifdef CONFIG_NUMA
|
|
|
|
/*
|
|
* Before going off node we want the VM to try and reclaim from the local
|
|
* node. It does this if the remote distance is larger than RECLAIM_DISTANCE.
|
|
* With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of
|
|
* 20, we never reclaim and go off node straight away.
|
|
*
|
|
* To fix this we choose a smaller value of RECLAIM_DISTANCE.
|
|
*/
|
|
#define RECLAIM_DISTANCE 10
|
|
|
|
#include <asm/mmzone.h>
|
|
|
|
static inline int cpu_to_node(int cpu)
|
|
{
|
|
return numa_cpu_lookup_table[cpu];
|
|
}
|
|
|
|
#define parent_node(node) (node)
|
|
|
|
#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 __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);
|
|
|
|
#else
|
|
|
|
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)
|
|
{
|
|
}
|
|
#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);
|
|
#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;
|
|
}
|
|
#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
|
|
|
|
#include <asm-generic/topology.h>
|
|
|
|
#ifdef CONFIG_SMP
|
|
#include <asm/cputable.h>
|
|
#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
|
|
|
|
#ifdef CONFIG_PPC64
|
|
#include <asm/smp.h>
|
|
|
|
#define topology_physical_package_id(cpu) (cpu_to_chip_id(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_core_id(cpu) (cpu_to_core_id(cpu))
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_TOPOLOGY_H */
|