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61 lines
1.8 KiB
61 lines
1.8 KiB
/* |
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* Copyright 2010 Tilera Corporation. All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation, version 2. |
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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 |
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* more details. |
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*/ |
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#ifndef _ASM_TILE_TOPOLOGY_H |
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#define _ASM_TILE_TOPOLOGY_H |
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#ifdef CONFIG_NUMA |
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#include <linux/cpumask.h> |
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/* Mappings between logical cpu number and node number. */ |
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extern struct cpumask node_2_cpu_mask[]; |
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extern char cpu_2_node[]; |
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/* Returns the number of the node containing CPU 'cpu'. */ |
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static inline int cpu_to_node(int cpu) |
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{ |
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return cpu_2_node[cpu]; |
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} |
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/* |
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* Returns the number of the node containing Node 'node'. |
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* This 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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/* Returns a bitmask 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_2_cpu_mask[node]; |
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} |
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/* For now, use numa node -1 for global allocation. */ |
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#define pcibus_to_node(bus) ((void)(bus), -1) |
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/* By definition, we create nodes based on online memory. */ |
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#define node_has_online_mem(nid) 1 |
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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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#define topology_physical_package_id(cpu) ((void)(cpu), 0) |
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#define topology_core_id(cpu) (cpu) |
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#define topology_core_cpumask(cpu) ((void)(cpu), cpu_online_mask) |
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#define topology_sibling_cpumask(cpu) cpumask_of(cpu) |
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#endif |
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#endif /* _ASM_TILE_TOPOLOGY_H */
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