projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/include/asm-generic/topology.h | |
| 3 | * | |
| 4 | * Written by: Matthew Dobson, IBM Corporation | |
| 5 | * | |
| 6 | * Copyright (C) 2002, IBM Corp. | |
| 7 | * | |
| 8 | * All rights reserved. | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License as published by | |
| 12 | * the Free Software Foundation; either version 2 of the License, or | |
| 13 | * (at your option) any later version. | |
| 14 | * | |
| 15 | * This program is distributed in the hope that it will be useful, but | |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| 18 | * NON INFRINGEMENT. See the GNU General Public License for more | |
| 19 | * details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License | |
| 22 | * along with this program; if not, write to the Free Software | |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 24 | * | |
| 25 | * Send feedback to <colpatch@us.ibm.com> | |
| 26 | */ | |
| 27 | #ifndef _ASM_GENERIC_TOPOLOGY_H | |
| 28 | #define _ASM_GENERIC_TOPOLOGY_H | |
| 29 | ||
| aa6b5446 MT |
30 | #ifndef CONFIG_NUMA |
| 31 | ||
| 1da177e4 LT |
32 | /* Other architectures wishing to use this simple topology API should fill |
| 33 | in the below functions as appropriate in their own <asm/topology.h> file. */ | |
| 34 | #ifndef cpu_to_node | |
| 271cad6d | 35 | #define cpu_to_node(cpu) ((void)(cpu),0) |
| 1da177e4 LT |
36 | #endif |
| 37 | #ifndef parent_node | |
| 271cad6d | 38 | #define parent_node(node) ((void)(node),0) |
| 1da177e4 LT |
39 | #endif |
| 40 | #ifndef node_to_cpumask | |
| 271cad6d | 41 | #define node_to_cpumask(node) ((void)node, cpu_online_map) |
| 1da177e4 LT |
42 | #endif |
| 43 | #ifndef node_to_first_cpu | |
| 271cad6d | 44 | #define node_to_first_cpu(node) ((void)(node),0) |
| 1da177e4 | 45 | #endif |
| 8c5a0908 | 46 | #ifndef pcibus_to_node |
| 271cad6d | 47 | #define pcibus_to_node(bus) ((void)(bus), -1) |
| 8c5a0908 CL |
48 | #endif |
| 49 | ||
| 1da177e4 | 50 | #ifndef pcibus_to_cpumask |
| 8c5a0908 CL |
51 | #define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \ |
| 52 | CPU_MASK_ALL : \ | |
| 53 | node_to_cpumask(pcibus_to_node(bus)) \ | |
| 54 | ) | |
| 1da177e4 LT |
55 | #endif |
| 56 | ||
| aa6b5446 MT |
57 | #endif /* CONFIG_NUMA */ |
| 58 | ||
| 59 | /* returns pointer to cpumask for specified node */ | |
| 60 | #ifndef node_to_cpumask_ptr | |
| 61 | ||
| 62 | #define node_to_cpumask_ptr(v, node) \ | |
| 11369f35 MT |
63 | cpumask_t _##v = node_to_cpumask(node); \ |
| 64 | const cpumask_t *v = &_##v | |
| aa6b5446 MT |
65 | |
| 66 | #define node_to_cpumask_ptr_next(v, node) \ | |
| 67 | _##v = node_to_cpumask(node) | |
| 68 | #endif | |
| 69 | ||
| 1da177e4 | 70 | #endif /* _ASM_GENERIC_TOPOLOGY_H */ |