Current File : //proc/self/root/usr/src/linux-headers-5.15.0-125/include/asm-generic/topology.h
/*
* linux/include/asm-generic/topology.h
*
* 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_GENERIC_TOPOLOGY_H
#define _ASM_GENERIC_TOPOLOGY_H
#ifndef CONFIG_NUMA
/* Other architectures wishing to use this simple topology API should fill
in the below functions as appropriate in their own <asm/topology.h> file. */
#ifndef cpu_to_node
#define cpu_to_node(cpu) ((void)(cpu),0)
#endif
#ifndef set_numa_node
#define set_numa_node(node)
#endif
#ifndef set_cpu_numa_node
#define set_cpu_numa_node(cpu, node)
#endif
#ifndef cpu_to_mem
#define cpu_to_mem(cpu) ((void)(cpu),0)
#endif
#ifndef cpumask_of_node
#ifdef CONFIG_NUMA
#define cpumask_of_node(node) ((node) == 0 ? cpu_online_mask : cpu_none_mask)
#else
#define cpumask_of_node(node) ((void)(node), cpu_online_mask)
#endif
#endif
#ifndef pcibus_to_node
#define pcibus_to_node(bus) ((void)(bus), -1)
#endif
#ifndef cpumask_of_pcibus
#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
cpu_all_mask : \
cpumask_of_node(pcibus_to_node(bus)))
#endif
#endif /* CONFIG_NUMA */
#if !defined(CONFIG_NUMA) || !defined(CONFIG_HAVE_MEMORYLESS_NODES)
#ifndef set_numa_mem
#define set_numa_mem(node)
#endif
#ifndef set_cpu_numa_mem
#define set_cpu_numa_mem(cpu, node)
#endif
#endif /* !CONFIG_NUMA || !CONFIG_HAVE_MEMORYLESS_NODES */
#endif /* _ASM_GENERIC_TOPOLOGY_H */
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