From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/s390/include/asm/topology.h | 101 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 arch/s390/include/asm/topology.h (limited to 'arch/s390/include/asm/topology.h') diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h new file mode 100644 index 0000000000..3a0ac0c7a9 --- /dev/null +++ b/arch/s390/include/asm/topology.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_TOPOLOGY_H +#define _ASM_S390_TOPOLOGY_H + +#include +#include + +struct sysinfo_15_1_x; +struct cpu; + +#ifdef CONFIG_SCHED_TOPOLOGY + +struct cpu_topology_s390 { + unsigned short thread_id; + unsigned short core_id; + unsigned short socket_id; + unsigned short book_id; + unsigned short drawer_id; + unsigned short dedicated : 1; + int booted_cores; + cpumask_t thread_mask; + cpumask_t core_mask; + cpumask_t book_mask; + cpumask_t drawer_mask; +}; + +extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; + +#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) +#define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) +#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) +#define topology_core_id(cpu) (cpu_topology[cpu].core_id) +#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) +#define topology_book_id(cpu) (cpu_topology[cpu].book_id) +#define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) +#define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) +#define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) +#define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) +#define topology_booted_cores(cpu) (cpu_topology[cpu].booted_cores) + +#define mc_capable() 1 + +void topology_init_early(void); +int topology_cpu_init(struct cpu *); +int topology_set_cpu_management(int fc); +void topology_schedule_update(void); +void store_topology(struct sysinfo_15_1_x *info); +void update_cpu_masks(void); +void topology_expect_change(void); +const struct cpumask *cpu_coregroup_mask(int cpu); + +#else /* CONFIG_SCHED_TOPOLOGY */ + +static inline void topology_init_early(void) { } +static inline void topology_schedule_update(void) { } +static inline int topology_cpu_init(struct cpu *cpu) { return 0; } +static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } +static inline int topology_booted_cores(int cpu_nr) { return 1; } +static inline void update_cpu_masks(void) { } +static inline void topology_expect_change(void) { } + +#endif /* CONFIG_SCHED_TOPOLOGY */ + +#define POLARIZATION_UNKNOWN (-1) +#define POLARIZATION_HRZ (0) +#define POLARIZATION_VL (1) +#define POLARIZATION_VM (2) +#define POLARIZATION_VH (3) + +#define SD_BOOK_INIT SD_CPU_INIT + +#ifdef CONFIG_NUMA + +#define cpu_to_node cpu_to_node +static inline int cpu_to_node(int cpu) +{ + return 0; +} + +/* Returns a pointer to the cpumask of CPUs on node 'node'. */ +#define cpumask_of_node cpumask_of_node +static inline const struct cpumask *cpumask_of_node(int node) +{ + return cpu_possible_mask; +} + +#define pcibus_to_node(bus) __pcibus_to_node(bus) + +#else /* !CONFIG_NUMA */ + +#define numa_node_id numa_node_id +static inline int numa_node_id(void) +{ + return 0; +} + +#endif /* CONFIG_NUMA */ + +#include + +#endif /* _ASM_S390_TOPOLOGY_H */ -- cgit v1.2.3