1 /* 2 * s390x smp 3 * 4 * Copyright (c) 2019 IBM Corp 5 * 6 * Authors: 7 * Janosch Frank <frankja@linux.ibm.com> 8 * 9 * This code is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License version 2. 11 */ 12 #ifndef SMP_H 13 #define SMP_H 14 15 #include <asm/arch_def.h> 16 17 struct cpu { 18 struct lowcore *lowcore; 19 uint64_t *stack; 20 uint16_t addr; 21 bool active; 22 }; 23 24 struct cpu_status { 25 uint64_t fprs[16]; /* 0x0000 */ 26 uint64_t grs[16]; /* 0x0080 */ 27 struct psw psw; /* 0x0100 */ 28 uint8_t pad_0x0110[0x0118 - 0x0110]; /* 0x0110 */ 29 uint32_t prefix; /* 0x0118 */ 30 uint32_t fpc; /* 0x011c */ 31 uint8_t pad_0x0120[0x0124 - 0x0120]; /* 0x0120 */ 32 uint32_t todpr; /* 0x0124 */ 33 uint64_t cputm; /* 0x0128 */ 34 uint64_t ckc; /* 0x0130 */ 35 uint8_t pad_0x0138[0x0140 - 0x0138]; /* 0x0138 */ 36 uint32_t ars[16]; /* 0x0140 */ 37 uint64_t crs[16]; /* 0x0384 */ 38 }; 39 40 int smp_query_num_cpus(void); 41 struct cpu *smp_cpu_from_addr(uint16_t addr); 42 bool smp_cpu_stopped(uint16_t addr); 43 bool smp_cpu_running(uint16_t addr); 44 int smp_cpu_restart(uint16_t addr); 45 int smp_cpu_start(uint16_t addr, struct psw psw); 46 int smp_cpu_stop(uint16_t addr); 47 int smp_cpu_stop_store_status(uint16_t addr); 48 int smp_cpu_destroy(uint16_t addr); 49 int smp_cpu_setup(uint16_t addr, struct psw psw); 50 void smp_teardown(void); 51 void smp_setup(void); 52 53 #endif 54