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-rw-r--r--arch/loongarch/include/asm/topology.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/topology.h b/arch/loongarch/include/asm/topology.h
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+++ b/arch/loongarch/include/asm/topology.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
+ */
+#ifndef __ASM_TOPOLOGY_H
+#define __ASM_TOPOLOGY_H
+
+#include <linux/smp.h>
+
+#ifdef CONFIG_NUMA
+
+extern cpumask_t cpus_on_node[];
+
+#define cpumask_of_node(node) (&cpus_on_node[node])
+
+struct pci_bus;
+extern int pcibus_to_node(struct pci_bus *);
+
+#define cpumask_of_pcibus(bus) (cpu_online_mask)
+
+extern unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES];
+
+void numa_set_distance(int from, int to, int distance);
+
+#define node_distance(from, to) (node_distances[(from)][(to)])
+
+#else
+#define pcibus_to_node(bus) 0
+#endif
+
+#ifdef CONFIG_SMP
+#define topology_physical_package_id(cpu) (cpu_data[cpu].package)
+#define topology_core_id(cpu) (cpu_data[cpu].core)
+#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu])
+#endif
+
+#include <asm-generic/topology.h>
+
+static inline void arch_fix_phys_package_id(int num, u32 slot) { }
+#endif /* __ASM_TOPOLOGY_H */