/* * 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 [31mCONFIG_NUMA[0m #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) #endif /* CONFIG_NUMA */ #include <asm-generic/topology.h> #ifdef [31mCONFIG_SMP[0m #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 */ |