| /* |
| * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation, version 2. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| * NON INFRINGEMENT. See the GNU General Public License for |
| * more details. |
| */ |
| |
| #ifndef _ASM_TILE_TOPOLOGY_H |
| #define _ASM_TILE_TOPOLOGY_H |
| |
| #ifdef CONFIG_NUMA |
| |
| #include <linux/cpumask.h> |
| |
| /* Mappings between logical cpu number and node number. */ |
| extern struct cpumask node_2_cpu_mask[]; |
| extern char cpu_2_node[]; |
| |
| /* Returns the number of the node containing CPU 'cpu'. */ |
| static inline int cpu_to_node(int cpu) |
| { |
| return cpu_2_node[cpu]; |
| } |
| |
| /* |
| * Returns the number of the node containing Node 'node'. |
| * This architecture is flat, so it is a pretty simple function! |
| */ |
| #define parent_node(node) (node) |
| |
| /* Returns a bitmask of CPUs on Node 'node'. */ |
| static inline const struct cpumask *cpumask_of_node(int node) |
| { |
| return &node_2_cpu_mask[node]; |
| } |
| |
| /* For now, use numa node -1 for global allocation. */ |
| #define pcibus_to_node(bus) ((void)(bus), -1) |
| |
| /* By definition, we create nodes based on online memory. */ |
| #define node_has_online_mem(nid) 1 |
| |
| #endif /* CONFIG_NUMA */ |
| |
| #include <asm-generic/topology.h> |
| |
| #ifdef CONFIG_SMP |
| #define topology_physical_package_id(cpu) ((void)(cpu), 0) |
| #define topology_core_id(cpu) (cpu) |
| #define topology_core_cpumask(cpu) ((void)(cpu), cpu_online_mask) |
| #define topology_sibling_cpumask(cpu) cpumask_of(cpu) |
| #endif |
| |
| #endif /* _ASM_TILE_TOPOLOGY_H */ |
