1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ASM_S390_TOPOLOGY_H 3*4882a593Smuzhiyun #define _ASM_S390_TOPOLOGY_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/cpumask.h> 6*4882a593Smuzhiyun #include <asm/numa.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun struct sysinfo_15_1_x; 9*4882a593Smuzhiyun struct cpu; 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #ifdef CONFIG_SCHED_TOPOLOGY 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun struct cpu_topology_s390 { 14*4882a593Smuzhiyun unsigned short thread_id; 15*4882a593Smuzhiyun unsigned short core_id; 16*4882a593Smuzhiyun unsigned short socket_id; 17*4882a593Smuzhiyun unsigned short book_id; 18*4882a593Smuzhiyun unsigned short drawer_id; 19*4882a593Smuzhiyun unsigned short dedicated : 1; 20*4882a593Smuzhiyun int booted_cores; 21*4882a593Smuzhiyun cpumask_t thread_mask; 22*4882a593Smuzhiyun cpumask_t core_mask; 23*4882a593Smuzhiyun cpumask_t book_mask; 24*4882a593Smuzhiyun cpumask_t drawer_mask; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) 30*4882a593Smuzhiyun #define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) 31*4882a593Smuzhiyun #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) 32*4882a593Smuzhiyun #define topology_core_id(cpu) (cpu_topology[cpu].core_id) 33*4882a593Smuzhiyun #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) 34*4882a593Smuzhiyun #define topology_book_id(cpu) (cpu_topology[cpu].book_id) 35*4882a593Smuzhiyun #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) 36*4882a593Smuzhiyun #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) 37*4882a593Smuzhiyun #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) 38*4882a593Smuzhiyun #define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) 39*4882a593Smuzhiyun #define topology_booted_cores(cpu) (cpu_topology[cpu].booted_cores) 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define mc_capable() 1 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun void topology_init_early(void); 44*4882a593Smuzhiyun int topology_cpu_init(struct cpu *); 45*4882a593Smuzhiyun int topology_set_cpu_management(int fc); 46*4882a593Smuzhiyun void topology_schedule_update(void); 47*4882a593Smuzhiyun void store_topology(struct sysinfo_15_1_x *info); 48*4882a593Smuzhiyun void update_cpu_masks(void); 49*4882a593Smuzhiyun void topology_expect_change(void); 50*4882a593Smuzhiyun const struct cpumask *cpu_coregroup_mask(int cpu); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #else /* CONFIG_SCHED_TOPOLOGY */ 53*4882a593Smuzhiyun topology_init_early(void)54*4882a593Smuzhiyunstatic inline void topology_init_early(void) { } topology_schedule_update(void)55*4882a593Smuzhiyunstatic inline void topology_schedule_update(void) { } topology_cpu_init(struct cpu * cpu)56*4882a593Smuzhiyunstatic inline int topology_cpu_init(struct cpu *cpu) { return 0; } topology_cpu_dedicated(int cpu_nr)57*4882a593Smuzhiyunstatic inline int topology_cpu_dedicated(int cpu_nr) { return 0; } topology_booted_cores(int cpu_nr)58*4882a593Smuzhiyunstatic inline int topology_booted_cores(int cpu_nr) { return 1; } update_cpu_masks(void)59*4882a593Smuzhiyunstatic inline void update_cpu_masks(void) { } topology_expect_change(void)60*4882a593Smuzhiyunstatic inline void topology_expect_change(void) { } 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #endif /* CONFIG_SCHED_TOPOLOGY */ 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #define POLARIZATION_UNKNOWN (-1) 65*4882a593Smuzhiyun #define POLARIZATION_HRZ (0) 66*4882a593Smuzhiyun #define POLARIZATION_VL (1) 67*4882a593Smuzhiyun #define POLARIZATION_VM (2) 68*4882a593Smuzhiyun #define POLARIZATION_VH (3) 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun #define SD_BOOK_INIT SD_CPU_INIT 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #ifdef CONFIG_NUMA 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #define cpu_to_node cpu_to_node cpu_to_node(int cpu)75*4882a593Smuzhiyunstatic inline int cpu_to_node(int cpu) 76*4882a593Smuzhiyun { 77*4882a593Smuzhiyun return 0; 78*4882a593Smuzhiyun } 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun /* Returns a pointer to the cpumask of CPUs on node 'node'. */ 81*4882a593Smuzhiyun #define cpumask_of_node cpumask_of_node cpumask_of_node(int node)82*4882a593Smuzhiyunstatic inline const struct cpumask *cpumask_of_node(int node) 83*4882a593Smuzhiyun { 84*4882a593Smuzhiyun return cpu_possible_mask; 85*4882a593Smuzhiyun } 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun #define pcibus_to_node(bus) __pcibus_to_node(bus) 88*4882a593Smuzhiyun 89*4882a593Smuzhiyun #else /* !CONFIG_NUMA */ 90*4882a593Smuzhiyun 91*4882a593Smuzhiyun #define numa_node_id numa_node_id numa_node_id(void)92*4882a593Smuzhiyunstatic inline int numa_node_id(void) 93*4882a593Smuzhiyun { 94*4882a593Smuzhiyun return 0; 95*4882a593Smuzhiyun } 96*4882a593Smuzhiyun 97*4882a593Smuzhiyun #endif /* CONFIG_NUMA */ 98*4882a593Smuzhiyun 99*4882a593Smuzhiyun #include <asm-generic/topology.h> 100*4882a593Smuzhiyun 101*4882a593Smuzhiyun #endif /* _ASM_S390_TOPOLOGY_H */ 102