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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3a368f742d
Enable core NUMA support for s390 and add one simple default mode "plain" that creates one single NUMA node. This patch contains several changes from Michael Holzheu. Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
#ifndef _ASM_S390_TOPOLOGY_H
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#define _ASM_S390_TOPOLOGY_H
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#include <linux/cpumask.h>
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#include <asm/numa.h>
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struct sysinfo_15_1_x;
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struct cpu;
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#ifdef CONFIG_SCHED_BOOK
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struct cpu_topology_s390 {
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unsigned short thread_id;
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unsigned short core_id;
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unsigned short socket_id;
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unsigned short book_id;
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unsigned short node_id;
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cpumask_t thread_mask;
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cpumask_t core_mask;
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cpumask_t book_mask;
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};
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DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
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#define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
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#define topology_thread_id(cpu) (per_cpu(cpu_topology, cpu).thread_id)
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#define topology_sibling_cpumask(cpu) \
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(&per_cpu(cpu_topology, cpu).thread_mask)
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#define topology_core_id(cpu) (per_cpu(cpu_topology, cpu).core_id)
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#define topology_core_cpumask(cpu) (&per_cpu(cpu_topology, cpu).core_mask)
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#define topology_book_id(cpu) (per_cpu(cpu_topology, cpu).book_id)
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#define topology_book_cpumask(cpu) (&per_cpu(cpu_topology, cpu).book_mask)
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#define mc_capable() 1
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int topology_cpu_init(struct cpu *);
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int topology_set_cpu_management(int fc);
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void topology_schedule_update(void);
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void store_topology(struct sysinfo_15_1_x *info);
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void topology_expect_change(void);
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const struct cpumask *cpu_coregroup_mask(int cpu);
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#else /* CONFIG_SCHED_BOOK */
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static inline void topology_schedule_update(void) { }
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static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
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static inline void topology_expect_change(void) { }
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#endif /* CONFIG_SCHED_BOOK */
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#define POLARIZATION_UNKNOWN (-1)
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#define POLARIZATION_HRZ (0)
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#define POLARIZATION_VL (1)
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#define POLARIZATION_VM (2)
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#define POLARIZATION_VH (3)
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#define SD_BOOK_INIT SD_CPU_INIT
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#ifdef CONFIG_NUMA
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#define cpu_to_node cpu_to_node
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static inline int cpu_to_node(int cpu)
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{
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return per_cpu(cpu_topology, cpu).node_id;
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}
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/* Returns a pointer to the cpumask of CPUs on node 'node'. */
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#define cpumask_of_node cpumask_of_node
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static inline const struct cpumask *cpumask_of_node(int node)
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{
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return node_to_cpumask_map[node];
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}
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/*
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* Returns the number of the node containing node 'node'. This
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* architecture is flat, so it is a pretty simple function!
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*/
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#define parent_node(node) (node)
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#define pcibus_to_node(bus) __pcibus_to_node(bus)
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#define node_distance(a, b) __node_distance(a, b)
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#else /* !CONFIG_NUMA */
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#define numa_node_id numa_node_id
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static inline int numa_node_id(void)
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{
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return 0;
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}
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#endif /* CONFIG_NUMA */
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#include <asm-generic/topology.h>
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#endif /* _ASM_S390_TOPOLOGY_H */
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