Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Written by: Matthew Dobson, IBM Corporation |
| 3 | * |
| 4 | * Copyright (C) 2002, IBM Corp. |
| 5 | * |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 16 | * NON INFRINGEMENT. See the GNU General Public License for more |
| 17 | * details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | * |
| 23 | * Send feedback to <colpatch@us.ibm.com> |
| 24 | */ |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 25 | #ifndef _ASM_X86_TOPOLOGY_H |
| 26 | #define _ASM_X86_TOPOLOGY_H |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 27 | |
Vaidyanathan Srinivasan | 5c3a121 | 2008-05-05 19:22:15 +0530 | [diff] [blame] | 28 | #ifdef CONFIG_X86_32 |
Borislav Petkov | c8e56d2 | 2015-06-04 18:55:25 +0200 | [diff] [blame] | 29 | # ifdef CONFIG_SMP |
Vaidyanathan Srinivasan | 5c3a121 | 2008-05-05 19:22:15 +0530 | [diff] [blame] | 30 | # define ENABLE_TOPO_DEFINES |
| 31 | # endif |
| 32 | #else |
| 33 | # ifdef CONFIG_SMP |
| 34 | # define ENABLE_TOPO_DEFINES |
| 35 | # endif |
| 36 | #endif |
| 37 | |
Lee Schermerhorn | 4e25b25 | 2009-12-14 17:58:23 -0800 | [diff] [blame] | 38 | /* |
| 39 | * to preserve the visibility of NUMA_NO_NODE definition, |
| 40 | * moved to there from here. May be used independent of |
| 41 | * CONFIG_NUMA. |
| 42 | */ |
| 43 | #include <linux/numa.h> |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 44 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 45 | #ifdef CONFIG_NUMA |
| 46 | #include <linux/cpumask.h> |
Lee Schermerhorn | 4e25b25 | 2009-12-14 17:58:23 -0800 | [diff] [blame] | 47 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 48 | #include <asm/mpspec.h> |
| 49 | |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 50 | /* Mappings between logical cpu number and node number */ |
| 51 | DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 52 | |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 53 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
Lee Schermerhorn | e534c7c | 2010-05-26 14:44:58 -0700 | [diff] [blame] | 54 | /* |
| 55 | * override generic percpu implementation of cpu_to_node |
| 56 | */ |
| 57 | extern int __cpu_to_node(int cpu); |
| 58 | #define cpu_to_node __cpu_to_node |
| 59 | |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 60 | extern int early_cpu_to_node(int cpu); |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 61 | |
| 62 | #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
| 63 | |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 64 | /* Same function but used if called before per_cpu areas are setup */ |
| 65 | static inline int early_cpu_to_node(int cpu) |
| 66 | { |
Tejun Heo | f10fcd4 | 2009-01-13 20:41:34 +0900 | [diff] [blame] | 67 | return early_per_cpu(x86_cpu_to_node_map, cpu); |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 68 | } |
Mike Travis | aa6b544 | 2008-03-31 08:41:55 -0700 | [diff] [blame] | 69 | |
Rusty Russell | 71ee73e | 2009-03-13 14:49:52 +1030 | [diff] [blame] | 70 | #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 71 | |
Rusty Russell | 71ee73e | 2009-03-13 14:49:52 +1030 | [diff] [blame] | 72 | /* Mappings between node number and cpus on that node. */ |
Rusty Russell | c032ef60 | 2009-03-13 14:49:53 +1030 | [diff] [blame] | 73 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
Rusty Russell | 71ee73e | 2009-03-13 14:49:52 +1030 | [diff] [blame] | 74 | |
| 75 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
Rusty Russell | 73e907d | 2009-03-13 14:49:57 +1030 | [diff] [blame] | 76 | extern const struct cpumask *cpumask_of_node(int node); |
Rusty Russell | 71ee73e | 2009-03-13 14:49:52 +1030 | [diff] [blame] | 77 | #else |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 78 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
Rusty Russell | c032ef60 | 2009-03-13 14:49:53 +1030 | [diff] [blame] | 79 | static inline const struct cpumask *cpumask_of_node(int node) |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 80 | { |
| 81 | return node_to_cpumask_map[node]; |
| 82 | } |
Rusty Russell | 71ee73e | 2009-03-13 14:49:52 +1030 | [diff] [blame] | 83 | #endif |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 84 | |
Brian Gerst | 6470aff | 2009-01-27 12:56:47 +0900 | [diff] [blame] | 85 | extern void setup_node_to_cpumask_map(void); |
| 86 | |
Rusty Russell | 393d68f | 2008-12-26 22:23:38 +1030 | [diff] [blame] | 87 | /* |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 88 | * Returns the number of the node containing Node 'node'. This |
| 89 | * architecture is flat, so it is a pretty simple function! |
| 90 | */ |
| 91 | #define parent_node(node) (node) |
| 92 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 93 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 94 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 95 | extern int __node_distance(int, int); |
| 96 | #define node_distance(a, b) __node_distance(a, b) |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 97 | |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 98 | #else /* !CONFIG_NUMA */ |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 99 | |
Mike Travis | f2a0827 | 2009-01-15 09:19:32 -0800 | [diff] [blame] | 100 | static inline int numa_node_id(void) |
| 101 | { |
| 102 | return 0; |
| 103 | } |
Lee Schermerhorn | 7281201 | 2010-05-26 14:44:56 -0700 | [diff] [blame] | 104 | /* |
| 105 | * indicate override: |
| 106 | */ |
| 107 | #define numa_node_id numa_node_id |
Mike Travis | f2a0827 | 2009-01-15 09:19:32 -0800 | [diff] [blame] | 108 | |
Mike Travis | f2a0827 | 2009-01-15 09:19:32 -0800 | [diff] [blame] | 109 | static inline int early_cpu_to_node(int cpu) |
| 110 | { |
| 111 | return 0; |
| 112 | } |
Mike Travis | 23ca4bb | 2008-05-12 21:21:12 +0200 | [diff] [blame] | 113 | |
Brian Gerst | 6470aff | 2009-01-27 12:56:47 +0900 | [diff] [blame] | 114 | static inline void setup_node_to_cpumask_map(void) { } |
| 115 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 116 | #endif |
| 117 | |
Mike Travis | aa6b544 | 2008-03-31 08:41:55 -0700 | [diff] [blame] | 118 | #include <asm-generic/topology.h> |
| 119 | |
Rusty Russell | 030bb20 | 2008-12-26 22:23:41 +1030 | [diff] [blame] | 120 | extern const struct cpumask *cpu_coregroup_mask(int cpu); |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 121 | |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 122 | #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) |
| 123 | #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) |
Artem Fetishev | 825600c | 2014-03-28 13:33:39 -0700 | [diff] [blame] | 124 | |
| 125 | #ifdef ENABLE_TOPO_DEFINES |
Rusty Russell | 7ad728f | 2009-03-13 14:49:50 +1030 | [diff] [blame] | 126 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
Bartosz Golaszewski | 06931e6 | 2015-05-26 15:11:28 +0200 | [diff] [blame] | 127 | #define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
Thomas Gleixner | 3367e56 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 128 | #endif |
| 129 | |
Alex Chiang | fe086a7 | 2008-04-29 15:05:29 -0700 | [diff] [blame] | 130 | static inline void arch_fix_phys_package_id(int num, u32 slot) |
| 131 | { |
| 132 | } |
| 133 | |
Yinghai Lu | 30a18d6 | 2008-02-19 03:21:20 -0800 | [diff] [blame] | 134 | struct pci_bus; |
Bjorn Helgaas | afcf21c2 | 2014-01-24 11:54:36 -0700 | [diff] [blame] | 135 | int x86_pci_root_bus_node(int bus); |
Bjorn Helgaas | 2cd6975 | 2011-10-28 16:28:14 -0600 | [diff] [blame] | 136 | void x86_pci_root_bus_resources(int bus, struct list_head *resources); |
Yinghai Lu | 30a18d6 | 2008-02-19 03:21:20 -0800 | [diff] [blame] | 137 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 138 | #endif /* _ASM_X86_TOPOLOGY_H */ |