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| Rev | Author | Line No. | Line |
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| 422 | giacomo | 1 | /* |
| 2 | * include/linux/topology.h |
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| 3 | * |
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| 4 | * Written by: Matthew Dobson, IBM Corporation |
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| 5 | * |
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| 6 | * Copyright (C) 2002, IBM Corp. |
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| 7 | * |
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| 8 | * All rights reserved. |
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| 9 | * |
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| 10 | * This program is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; either version 2 of the License, or |
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| 13 | * (at your option) any later version. |
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| 14 | * |
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| 15 | * This program is distributed in the hope that it will be useful, but |
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| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
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| 18 | * NON INFRINGEMENT. See the GNU General Public License for more |
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| 19 | * details. |
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| 20 | * |
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| 21 | * You should have received a copy of the GNU General Public License |
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| 22 | * along with this program; if not, write to the Free Software |
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| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 24 | * |
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| 25 | * Send feedback to <colpatch@us.ibm.com> |
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| 26 | */ |
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| 27 | #ifndef _LINUX_TOPOLOGY_H |
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| 28 | #define _LINUX_TOPOLOGY_H |
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| 29 | |||
| 30 | #include <linux/cpumask.h> |
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| 31 | #include <linux/bitops.h> |
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| 32 | #include <linux/mmzone.h> |
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| 33 | #include <linux/smp.h> |
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| 34 | |||
| 35 | #include <asm/topology.h> |
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| 36 | |||
| 37 | #ifndef nr_cpus_node |
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| 38 | #define nr_cpus_node(node) \ |
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| 39 | ({ \ |
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| 40 | cpumask_t __tmp__; \ |
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| 41 | __tmp__ = node_to_cpumask(node); \ |
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| 42 | cpus_weight(__tmp__); \ |
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| 43 | }) |
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| 44 | #endif |
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| 45 | |||
| 46 | static inline int __next_node_with_cpus(int node) |
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| 47 | { |
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| 48 | do |
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| 49 | ++node; |
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| 50 | while (node < numnodes && !nr_cpus_node(node)); |
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| 51 | return node; |
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| 52 | } |
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| 53 | |||
| 54 | #define for_each_node_with_cpus(node) \ |
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| 55 | for (node = 0; node < numnodes; node = __next_node_with_cpus(node)) |
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| 56 | |||
| 57 | #endif /* _LINUX_TOPOLOGY_H */ |