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138 lines
3.4 KiB
138 lines
3.4 KiB
/* |
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* Written by: Matthew Dobson, IBM Corporation |
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* |
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* Copyright (C) 2002, IBM Corp. |
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* |
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* All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
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* NON INFRINGEMENT. See the GNU General Public License for more |
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* details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* Send feedback to <colpatch@us.ibm.com> |
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*/ |
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#ifndef _ASM_X86_TOPOLOGY_H |
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#define _ASM_X86_TOPOLOGY_H |
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#ifdef CONFIG_X86_32 |
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# ifdef CONFIG_SMP |
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# define ENABLE_TOPO_DEFINES |
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# endif |
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#else |
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# ifdef CONFIG_SMP |
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# define ENABLE_TOPO_DEFINES |
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# endif |
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#endif |
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/* |
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* to preserve the visibility of NUMA_NO_NODE definition, |
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* moved to there from here. May be used independent of |
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* CONFIG_NUMA. |
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*/ |
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#include <linux/numa.h> |
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#ifdef CONFIG_NUMA |
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#include <linux/cpumask.h> |
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#include <asm/mpspec.h> |
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/* Mappings between logical cpu number and node number */ |
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DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); |
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#ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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/* |
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* override generic percpu implementation of cpu_to_node |
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*/ |
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extern int __cpu_to_node(int cpu); |
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#define cpu_to_node __cpu_to_node |
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extern int early_cpu_to_node(int cpu); |
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#else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
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/* Same function but used if called before per_cpu areas are setup */ |
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static inline int early_cpu_to_node(int cpu) |
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{ |
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return early_per_cpu(x86_cpu_to_node_map, cpu); |
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} |
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#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
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/* Mappings between node number and cpus on that node. */ |
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extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
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#ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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extern const struct cpumask *cpumask_of_node(int node); |
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#else |
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/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
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static inline const struct cpumask *cpumask_of_node(int node) |
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{ |
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return node_to_cpumask_map[node]; |
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} |
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#endif |
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extern void setup_node_to_cpumask_map(void); |
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/* |
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* Returns the number of the node containing Node 'node'. This |
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* architecture is flat, so it is a pretty simple function! |
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*/ |
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#define parent_node(node) (node) |
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#define pcibus_to_node(bus) __pcibus_to_node(bus) |
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extern int __node_distance(int, int); |
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#define node_distance(a, b) __node_distance(a, b) |
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#else /* !CONFIG_NUMA */ |
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static inline int numa_node_id(void) |
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{ |
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return 0; |
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} |
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/* |
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* indicate override: |
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*/ |
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#define numa_node_id numa_node_id |
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static inline int early_cpu_to_node(int cpu) |
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{ |
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return 0; |
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} |
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static inline void setup_node_to_cpumask_map(void) { } |
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#endif |
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#include <asm-generic/topology.h> |
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extern const struct cpumask *cpu_coregroup_mask(int cpu); |
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#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) |
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#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) |
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#ifdef ENABLE_TOPO_DEFINES |
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#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
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#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
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#endif |
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static inline void arch_fix_phys_package_id(int num, u32 slot) |
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{ |
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} |
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struct pci_bus; |
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int x86_pci_root_bus_node(int bus); |
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void x86_pci_root_bus_resources(int bus, struct list_head *resources); |
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#endif /* _ASM_X86_TOPOLOGY_H */
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