jdl@freescale.com | dd56fdf | 2005-09-07 15:59:48 -0500 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_TOPOLOGY_H |
| 2 | #define _ASM_POWERPC_TOPOLOGY_H |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 3 | #ifdef __KERNEL__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | |
Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 6 | struct device; |
Jeremy Kerr | 953039c | 2006-05-01 12:16:12 -0700 | [diff] [blame] | 7 | struct device_node; |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #ifdef CONFIG_NUMA |
| 10 | |
Anton Blanchard | 27f1090 | 2010-02-18 12:29:23 +0000 | [diff] [blame] | 11 | /* |
Mel Gorman | 4f9b16a | 2014-06-04 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 Blanchard | 27f1090 | 2010-02-18 12:29:23 +0000 | [diff] [blame] | 14 | */ |
| 15 | #define RECLAIM_DISTANCE 10 |
| 16 | |
jdl@freescale.com | dd56fdf | 2005-09-07 15:59:48 -0500 | [diff] [blame] | 17 | #include <asm/mmzone.h> |
| 18 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #define parent_node(node) (node) |
| 20 | |
Anton Blanchard | c81b812 | 2010-01-05 18:55:10 +0000 | [diff] [blame] | 21 | #define cpumask_of_node(node) ((node) == -1 ? \ |
| 22 | cpu_all_mask : \ |
Anton Blanchard | 25863de | 2010-04-26 15:32:43 +0000 | [diff] [blame] | 23 | node_to_cpumask_map[node]) |
Rusty Russell | 86c6f27 | 2008-12-26 22:23:39 +1030 | [diff] [blame] | 24 | |
Anton Blanchard | 357518f | 2006-06-10 20:53:06 +1000 | [diff] [blame] | 25 | struct pci_bus; |
Arnd Bergmann | 11faa65 | 2006-11-27 19:19:00 +0100 | [diff] [blame] | 26 | #ifdef CONFIG_PCI |
Anton Blanchard | 357518f | 2006-06-10 20:53:06 +1000 | [diff] [blame] | 27 | extern int pcibus_to_node(struct pci_bus *bus); |
Arnd Bergmann | 11faa65 | 2006-11-27 19:19:00 +0100 | [diff] [blame] | 28 | #else |
| 29 | static inline int pcibus_to_node(struct pci_bus *bus) |
| 30 | { |
| 31 | return -1; |
| 32 | } |
| 33 | #endif |
Anton Blanchard | 357518f | 2006-06-10 20:53:06 +1000 | [diff] [blame] | 34 | |
Rusty Russell | 86c6f27 | 2008-12-26 22:23:39 +1030 | [diff] [blame] | 35 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
| 36 | cpu_all_mask : \ |
| 37 | cpumask_of_node(pcibus_to_node(bus))) |
| 38 | |
Anton Blanchard | 41eab6f | 2010-05-16 20:22:31 +0000 | [diff] [blame] | 39 | extern int __node_distance(int, int); |
| 40 | #define node_distance(a, b) __node_distance(a, b) |
| 41 | |
Anton Blanchard | 4b703a2 | 2005-12-13 06:56:47 +1100 | [diff] [blame] | 42 | extern void __init dump_numa_cpu_topology(void); |
| 43 | |
Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 44 | extern int sysfs_add_device_to_node(struct device *dev, int nid); |
| 45 | extern void sysfs_remove_device_from_node(struct device *dev, int nid); |
Jeremy Kerr | 953039c | 2006-05-01 12:16:12 -0700 | [diff] [blame] | 46 | |
Michael Ellerman | b4624ff | 2017-06-06 20:23:57 +1000 | [diff] [blame] | 47 | static inline int early_cpu_to_node(int cpu) |
| 48 | { |
| 49 | int nid; |
| 50 | |
| 51 | nid = numa_cpu_lookup_table[cpu]; |
| 52 | |
| 53 | /* |
| 54 | * Fall back to node 0 if nid is unset (it should be, except bugs). |
| 55 | * This allows callers to safely do NODE_DATA(early_cpu_to_node(cpu)). |
| 56 | */ |
| 57 | return (nid < 0) ? 0 : nid; |
| 58 | } |
Jesse Larrew | 39bf990 | 2010-12-17 22:07:47 +0000 | [diff] [blame] | 59 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Michael Ellerman | b4624ff | 2017-06-06 20:23:57 +1000 | [diff] [blame] | 61 | static inline int early_cpu_to_node(int cpu) { return 0; } |
| 62 | |
Anton Blanchard | 4b703a2 | 2005-12-13 06:56:47 +1100 | [diff] [blame] | 63 | static inline void dump_numa_cpu_topology(void) {} |
| 64 | |
Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 65 | static inline int sysfs_add_device_to_node(struct device *dev, int nid) |
Jeremy Kerr | 953039c | 2006-05-01 12:16:12 -0700 | [diff] [blame] | 66 | { |
| 67 | return 0; |
| 68 | } |
| 69 | |
Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 70 | static inline void sysfs_remove_device_from_node(struct device *dev, |
Jeremy Kerr | 953039c | 2006-05-01 12:16:12 -0700 | [diff] [blame] | 71 | int nid) |
| 72 | { |
| 73 | } |
Mike Travis | aa6b544 | 2008-03-31 08:41:55 -0700 | [diff] [blame] | 74 | #endif /* CONFIG_NUMA */ |
Jeremy Kerr | 953039c | 2006-05-01 12:16:12 -0700 | [diff] [blame] | 75 | |
Benjamin Herrenschmidt | 5d7d807 | 2011-01-12 10:56:29 +1100 | [diff] [blame] | 76 | #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) |
| 77 | extern int start_topology_update(void); |
| 78 | extern int stop_topology_update(void); |
Nathan Fontenot | e04fa61 | 2013-04-24 06:07:39 +0000 | [diff] [blame] | 79 | extern int prrn_is_enabled(void); |
Benjamin Herrenschmidt | 5d7d807 | 2011-01-12 10:56:29 +1100 | [diff] [blame] | 80 | #else |
| 81 | static inline int start_topology_update(void) |
| 82 | { |
| 83 | return 0; |
| 84 | } |
| 85 | static inline int stop_topology_update(void) |
| 86 | { |
| 87 | return 0; |
| 88 | } |
Nathan Fontenot | e04fa61 | 2013-04-24 06:07:39 +0000 | [diff] [blame] | 89 | static inline int prrn_is_enabled(void) |
| 90 | { |
| 91 | return 0; |
| 92 | } |
Benjamin Herrenschmidt | 5d7d807 | 2011-01-12 10:56:29 +1100 | [diff] [blame] | 93 | #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */ |
| 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | #include <asm-generic/topology.h> |
| 96 | |
Siddha, Suresh B | 5c45bf2 | 2006-06-27 02:54:42 -0700 | [diff] [blame] | 97 | #ifdef CONFIG_SMP |
| 98 | #include <asm/cputable.h> |
Stephen Rothwell | 056f4fa | 2006-11-13 14:51:46 +1100 | [diff] [blame] | 99 | |
| 100 | #ifdef CONFIG_PPC64 |
| 101 | #include <asm/smp.h> |
| 102 | |
Vasant Hegde | 15863ff | 2013-08-12 17:35:57 +0530 | [diff] [blame] | 103 | #define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu)) |
Bartosz Golaszewski | 06931e6 | 2015-05-26 15:11:28 +0200 | [diff] [blame] | 104 | #define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
Anton Blanchard | cc1ba8e | 2010-04-26 15:32:41 +0000 | [diff] [blame] | 105 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
Nathan Lynch | e9efed3 | 2008-07-27 15:24:54 +1000 | [diff] [blame] | 106 | #define topology_core_id(cpu) (cpu_to_core_id(cpu)) |
Stephen Rothwell | 056f4fa | 2006-11-13 14:51:46 +1100 | [diff] [blame] | 107 | #endif |
Siddha, Suresh B | 5c45bf2 | 2006-06-27 02:54:42 -0700 | [diff] [blame] | 108 | #endif |
| 109 | |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 110 | #endif /* __KERNEL__ */ |
jdl@freescale.com | dd56fdf | 2005-09-07 15:59:48 -0500 | [diff] [blame] | 111 | #endif /* _ASM_POWERPC_TOPOLOGY_H */ |