139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
/*
|
|
* 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;
|
|
int x86_pci_root_bus_node(int bus);
|
|
void x86_pci_root_bus_resources(int bus, struct list_head *resources);
|
|
|
|
#endif /* _ASM_X86_TOPOLOGY_H */
|