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gerrit-public.fairphone.software / kernel / msm-5.4 / 4f9b16a64753d0bb607454347036dc997fd03b82 / . / arch / powerpc / include / asm / topology.h
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jdl@freescale.comdd56fdf2005-09-07 15:59:48 -0500[diff] [blame]1#ifndef _ASM_POWERPC_TOPOLOGY_H
2#define _ASM_POWERPC_TOPOLOGY_H
Arnd Bergmann88ced032005-12-16 22:43:46 +0100[diff] [blame]3#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5
Kay Sievers8a25a2f2011-12-21 14:29:42 -0800[diff] [blame]6struct device;
Jeremy Kerr953039c2006-05-01 12:16:12 -0700[diff] [blame]7struct device_node;
8
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]9#ifdef CONFIG_NUMA
10
Anton Blanchard27f10902010-02-18 12:29:23 +0000[diff] [blame]11/*
Mel Gorman4f9b16a2014-06-04 16:07:14 -0700[diff] [blame^]12 * If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that
13 * all zones on all nodes will be eligible for zone_reclaim().
Anton Blanchard27f10902010-02-18 12:29:23 +0000[diff] [blame]14 */
15#define RECLAIM_DISTANCE 10
16
jdl@freescale.comdd56fdf2005-09-07 15:59:48 -0500[diff] [blame]17#include <asm/mmzone.h>
18
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]19static inline int cpu_to_node(int cpu)
20{
Srivatsa S. Bhatd4edc5b2013-12-30 17:05:34 +0530[diff] [blame]21 int nid;
22
23 nid = numa_cpu_lookup_table[cpu];
24
25 /*
26 * During early boot, the numa-cpu lookup table might not have been
27 * setup for all CPUs yet. In such cases, default to node 0.
28 */
29 return (nid < 0) ? 0 : nid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]30}
31
32#define parent_node(node) (node)
33
Anton Blanchardc81b8122010-01-05 18:55:10 +0000[diff] [blame]34#define cpumask_of_node(node) ((node) == -1 ? \
35 cpu_all_mask : \
Anton Blanchard25863de2010-04-26 15:32:43 +0000[diff] [blame]36 node_to_cpumask_map[node])
Rusty Russell86c6f2742008-12-26 22:23:39 +1030[diff] [blame]37
Anton Blanchard357518f2006-06-10 20:53:06 +1000[diff] [blame]38struct pci_bus;
Arnd Bergmann11faa652006-11-27 19:19:00 +0100[diff] [blame]39#ifdef CONFIG_PCI
Anton Blanchard357518f2006-06-10 20:53:06 +1000[diff] [blame]40extern int pcibus_to_node(struct pci_bus *bus);
Arnd Bergmann11faa652006-11-27 19:19:00 +0100[diff] [blame]41#else
42static inline int pcibus_to_node(struct pci_bus *bus)
43{
44 return -1;
45}
46#endif
Anton Blanchard357518f2006-06-10 20:53:06 +1000[diff] [blame]47
Rusty Russell86c6f2742008-12-26 22:23:39 +1030[diff] [blame]48#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
49 cpu_all_mask : \
50 cpumask_of_node(pcibus_to_node(bus)))
51
Anton Blanchard41eab6f2010-05-16 20:22:31 +0000[diff] [blame]52extern int __node_distance(int, int);
53#define node_distance(a, b) __node_distance(a, b)
54
Anton Blanchard4b703a22005-12-13 06:56:47 +1100[diff] [blame]55extern void __init dump_numa_cpu_topology(void);
56
Kay Sievers8a25a2f2011-12-21 14:29:42 -0800[diff] [blame]57extern int sysfs_add_device_to_node(struct device *dev, int nid);
58extern void sysfs_remove_device_from_node(struct device *dev, int nid);
Jeremy Kerr953039c2006-05-01 12:16:12 -0700[diff] [blame]59
Jesse Larrew39bf9902010-12-17 22:07:47 +0000[diff] [blame]60#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]61
Anton Blanchard4b703a22005-12-13 06:56:47 +1100[diff] [blame]62static inline void dump_numa_cpu_topology(void) {}
63
Kay Sievers8a25a2f2011-12-21 14:29:42 -0800[diff] [blame]64static inline int sysfs_add_device_to_node(struct device *dev, int nid)
Jeremy Kerr953039c2006-05-01 12:16:12 -0700[diff] [blame]65{
66 return 0;
67}
68
Kay Sievers8a25a2f2011-12-21 14:29:42 -0800[diff] [blame]69static inline void sysfs_remove_device_from_node(struct device *dev,
Jeremy Kerr953039c2006-05-01 12:16:12 -0700[diff] [blame]70 int nid)
71{
72}
Mike Travisaa6b5442008-03-31 08:41:55 -0700[diff] [blame]73#endif /* CONFIG_NUMA */
Jeremy Kerr953039c2006-05-01 12:16:12 -0700[diff] [blame]74
Benjamin Herrenschmidt5d7d8072011-01-12 10:56:29 +1100[diff] [blame]75#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
76extern int start_topology_update(void);
77extern int stop_topology_update(void);
Nathan Fontenote04fa612013-04-24 06:07:39 +0000[diff] [blame]78extern int prrn_is_enabled(void);
Benjamin Herrenschmidt5d7d8072011-01-12 10:56:29 +1100[diff] [blame]79#else
80static inline int start_topology_update(void)
81{
82 return 0;
83}
84static inline int stop_topology_update(void)
85{
86 return 0;
87}
Nathan Fontenote04fa612013-04-24 06:07:39 +0000[diff] [blame]88static inline int prrn_is_enabled(void)
89{
90 return 0;
91}
Benjamin Herrenschmidt5d7d8072011-01-12 10:56:29 +1100[diff] [blame]92#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
93
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]94#include <asm-generic/topology.h>
95
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700[diff] [blame]96#ifdef CONFIG_SMP
97#include <asm/cputable.h>
Stephen Rothwell056f4fa2006-11-13 14:51:46 +1100[diff] [blame]98
99#ifdef CONFIG_PPC64
100#include <asm/smp.h>
101
Vasant Hegde15863ff2013-08-12 17:35:57 +0530[diff] [blame]102#define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu))
Anton Blanchardcc1ba8e2010-04-26 15:32:41 +0000[diff] [blame]103#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
104#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
Nathan Lynche9efed32008-07-27 15:24:54 +1000[diff] [blame]105#define topology_core_id(cpu) (cpu_to_core_id(cpu))
Stephen Rothwell056f4fa2006-11-13 14:51:46 +1100[diff] [blame]106#endif
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700[diff] [blame]107#endif
108
Arnd Bergmann88ced032005-12-16 22:43:46 +0100[diff] [blame]109#endif /* __KERNEL__ */
jdl@freescale.comdd56fdf2005-09-07 15:59:48 -0500[diff] [blame]110#endif /* _ASM_POWERPC_TOPOLOGY_H */