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Diffstat (limited to 'arch/ia64/include/asm/topology.h')
-rw-r--r-- | arch/ia64/include/asm/topology.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h new file mode 100644 index 0000000000..43567240b0 --- /dev/null +++ b/arch/ia64/include/asm/topology.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2002, Erich Focht, NEC + * + * All rights reserved. + */ +#ifndef _ASM_IA64_TOPOLOGY_H +#define _ASM_IA64_TOPOLOGY_H + +#include <asm/acpi.h> +#include <asm/numa.h> +#include <asm/smp.h> + +#ifdef CONFIG_NUMA + +/* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */ +#define PENALTY_FOR_NODE_WITH_CPUS 255 + +/* + * Nodes within this distance are eligible for reclaim by zone_reclaim() when + * zone_reclaim_mode is enabled. + */ +#define RECLAIM_DISTANCE 15 + +/* + * Returns a bitmask of CPUs on Node 'node'. + */ +#define cpumask_of_node(node) ((node) == -1 ? \ + cpu_all_mask : \ + &node_to_cpu_mask[node]) + +/* + * Determines the node for a given pci bus + */ +#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node + +void build_cpu_to_node_map(void); + +#endif /* CONFIG_NUMA */ + +#ifdef CONFIG_SMP +#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) +#define topology_core_id(cpu) (cpu_data(cpu)->core_id) +#define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) +#define topology_sibling_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) +#endif + +extern void arch_fix_phys_package_id(int num, u32 slot); + +#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ + cpu_all_mask : \ + cpumask_of_node(pcibus_to_node(bus))) + +#include <asm-generic/topology.h> + +#endif /* _ASM_IA64_TOPOLOGY_H */ |