| /* |
| * Written by: Matthew Dobson, IBM Corporation |
| * |
| * Copyright (C) 2002, IBM Corp. |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * Send feedback to <colpatch@us.ibm.com> |
| */ |
| #ifndef _ASM_X86_TOPOLOGY_H |
| #define _ASM_X86_TOPOLOGY_H |
| |
| #ifdef CONFIG_X86_32 |
| # ifdef CONFIG_X86_HT |
| # define ENABLE_TOPO_DEFINES |
| # endif |
| #else |
| # ifdef CONFIG_SMP |
| # define ENABLE_TOPO_DEFINES |
| # endif |
| #endif |
| |
| /* |
| * to preserve the visibility of NUMA_NO_NODE definition, |
| * moved to there from here. May be used independent of |
| * CONFIG_NUMA. |
| */ |
| #include <linux/numa.h> |
| |
| #ifdef CONFIG_NUMA |
| #include <linux/cpumask.h> |
| |
| #include <asm/mpspec.h> |
| |
| /* Mappings between logical cpu number and node number */ |
| DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map); |
| |
| #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
| /* |
| * override generic percpu implementation of cpu_to_node |
| */ |
| extern int __cpu_to_node(int cpu); |
| #define cpu_to_node __cpu_to_node |
| |
| extern int early_cpu_to_node(int cpu); |
| |
| #else /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
| |
| /* Same function but used if called before per_cpu areas are setup */ |
| static inline int early_cpu_to_node(int cpu) |
| { |
| return early_per_cpu(x86_cpu_to_node_map, cpu); |
| } |
| |
| #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ |
| |
| /* Mappings between node number and cpus on that node. */ |
| extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
| |
| #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
| extern const struct cpumask *cpumask_of_node(int node); |
| #else |
| /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
| static inline const struct cpumask *cpumask_of_node(int node) |
| { |
| return node_to_cpumask_map[node]; |
| } |
| #endif |
| |
| extern void setup_node_to_cpumask_map(void); |
| |
| /* |
| * 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) |
| |
| #define pcibus_to_node(bus) __pcibus_to_node(bus) |
| |
| extern int __node_distance(int, int); |
| #define node_distance(a, b) __node_distance(a, b) |
| |
| #else /* !CONFIG_NUMA */ |
| |
| static inline int numa_node_id(void) |
| { |
| return 0; |
| } |
| /* |
| * indicate override: |
| */ |
| #define numa_node_id numa_node_id |
| |
| static inline int early_cpu_to_node(int cpu) |
| { |
| return 0; |
| } |
| |
| static inline void setup_node_to_cpumask_map(void) { } |
| |
| #endif |
| |
| #include <asm-generic/topology.h> |
| |
| extern const struct cpumask *cpu_coregroup_mask(int cpu); |
| |
| #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id) |
| #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) |
| |
| #ifdef ENABLE_TOPO_DEFINES |
| #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
| #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
| #endif |
| |
| static inline void arch_fix_phys_package_id(int num, u32 slot) |
| { |
| } |
| |
| struct pci_bus; |
| void x86_pci_root_bus_resources(int bus, struct list_head *resources); |
| |
| #ifdef CONFIG_NUMA |
| extern int get_mp_bus_to_node(int busnum); |
| extern void set_mp_bus_to_node(int busnum, int node); |
| #else |
| static inline int get_mp_bus_to_node(int busnum) |
| { |
| return 0; |
| } |
| static inline void set_mp_bus_to_node(int busnum, int node) |
| { |
| } |
| #endif |
| |
| #endif /* _ASM_X86_TOPOLOGY_H */ |