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132 lines
3.2 KiB
132 lines
3.2 KiB
#ifndef _ASM_POWERPC_TOPOLOGY_H |
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#define _ASM_POWERPC_TOPOLOGY_H |
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#ifdef __KERNEL__ |
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struct sys_device; |
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struct device_node; |
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#ifdef CONFIG_NUMA |
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/* |
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* Before going off node we want the VM to try and reclaim from the local |
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* node. It does this if the remote distance is larger than RECLAIM_DISTANCE. |
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* With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of |
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* 20, we never reclaim and go off node straight away. |
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* |
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* To fix this we choose a smaller value of RECLAIM_DISTANCE. |
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*/ |
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#define RECLAIM_DISTANCE 10 |
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/* |
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* Before going off node we want the VM to try and reclaim from the local |
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* node. It does this if the remote distance is larger than RECLAIM_DISTANCE. |
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* With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of |
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* 20, we never reclaim and go off node straight away. |
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* |
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* To fix this we choose a smaller value of RECLAIM_DISTANCE. |
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*/ |
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#define RECLAIM_DISTANCE 10 |
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#include <asm/mmzone.h> |
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static inline int cpu_to_node(int cpu) |
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{ |
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return numa_cpu_lookup_table[cpu]; |
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} |
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#define parent_node(node) (node) |
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#define cpumask_of_node(node) ((node) == -1 ? \ |
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cpu_all_mask : \ |
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node_to_cpumask_map[node]) |
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int of_node_to_nid(struct device_node *device); |
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struct pci_bus; |
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#ifdef CONFIG_PCI |
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extern int pcibus_to_node(struct pci_bus *bus); |
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#else |
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static inline int pcibus_to_node(struct pci_bus *bus) |
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{ |
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return -1; |
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} |
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#endif |
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#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
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cpu_all_mask : \ |
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cpumask_of_node(pcibus_to_node(bus))) |
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/* sched_domains SD_NODE_INIT for PPC64 machines */ |
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#define SD_NODE_INIT (struct sched_domain) { \ |
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.min_interval = 8, \ |
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.max_interval = 32, \ |
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.busy_factor = 32, \ |
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.imbalance_pct = 125, \ |
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.cache_nice_tries = 1, \ |
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.busy_idx = 3, \ |
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.idle_idx = 1, \ |
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.newidle_idx = 0, \ |
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.wake_idx = 0, \ |
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.forkexec_idx = 0, \ |
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\ |
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.flags = 1*SD_LOAD_BALANCE \ |
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| 1*SD_BALANCE_NEWIDLE \ |
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| 1*SD_BALANCE_EXEC \ |
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| 1*SD_BALANCE_FORK \ |
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| 0*SD_BALANCE_WAKE \ |
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| 0*SD_WAKE_AFFINE \ |
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| 0*SD_PREFER_LOCAL \ |
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| 0*SD_SHARE_CPUPOWER \ |
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| 0*SD_POWERSAVINGS_BALANCE \ |
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| 0*SD_SHARE_PKG_RESOURCES \ |
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| 1*SD_SERIALIZE \ |
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| 0*SD_PREFER_SIBLING \ |
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, \ |
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.last_balance = jiffies, \ |
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.balance_interval = 1, \ |
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} |
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extern void __init dump_numa_cpu_topology(void); |
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extern int sysfs_add_device_to_node(struct sys_device *dev, int nid); |
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extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid); |
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#else |
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static inline int of_node_to_nid(struct device_node *device) |
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{ |
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return 0; |
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} |
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static inline void dump_numa_cpu_topology(void) {} |
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static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid) |
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{ |
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return 0; |
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} |
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static inline void sysfs_remove_device_from_node(struct sys_device *dev, |
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int nid) |
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{ |
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} |
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#endif /* CONFIG_NUMA */ |
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#include <asm-generic/topology.h> |
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#ifdef CONFIG_SMP |
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#include <asm/cputable.h> |
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#define smt_capable() (cpu_has_feature(CPU_FTR_SMT)) |
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#ifdef CONFIG_PPC64 |
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#include <asm/smp.h> |
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#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
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#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
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#define topology_core_id(cpu) (cpu_to_core_id(cpu)) |
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#endif |
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#endif |
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#endif /* __KERNEL__ */ |
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#endif /* _ASM_POWERPC_TOPOLOGY_H */
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