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a24f2fb70c
Commit 8748270821 ("mm: introduce numa_memblks") has moved
numa_memblks from x86 to the generic code, but LoongArch was left out
of this conversion.
This patch introduces the generic numa_memblks for LoongArch.
In detail:
1. Enable NUMA_MEMBLKS (but disable NUMA_EMU) in Kconfig;
2. Use generic definition for numa_memblk and numa_meminfo;
3. Use generic implementation for numa_add_memblk() and its friends;
4. Use generic implementation for numa_set_distance() and its friends;
5. Use generic implementation for memory_add_physaddr_to_nid() and its
friends.
Note: Disable NUMA_EMU because it needs more efforts and no obvious
demand now.
Tested-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Yuquan Wang <wangyuquan1236@phytium.com.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef __ASM_TOPOLOGY_H
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#define __ASM_TOPOLOGY_H
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#include <linux/smp.h>
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#ifdef CONFIG_NUMA
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#include <asm/numa.h>
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extern cpumask_t cpus_on_node[];
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#define cpumask_of_node(node) (&cpus_on_node[node])
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struct pci_bus;
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extern int pcibus_to_node(struct pci_bus *);
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#define cpumask_of_pcibus(bus) (cpu_online_mask)
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int __node_distance(int from, int to);
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#define node_distance(from, to) __node_distance(from, to)
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#else
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#define pcibus_to_node(bus) 0
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#endif
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#ifdef CONFIG_SMP
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/*
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* Return cpus that shares the last level cache.
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*/
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static inline const struct cpumask *cpu_coregroup_mask(int cpu)
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{
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return &cpu_llc_shared_map[cpu];
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}
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#define topology_physical_package_id(cpu) (cpu_data[cpu].package)
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#define topology_core_id(cpu) (cpu_data[cpu].core)
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#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
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#define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu])
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#endif
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#include <asm-generic/topology.h>
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static inline void arch_fix_phys_package_id(int num, u32 slot) { }
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#endif /* __ASM_TOPOLOGY_H */
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