16c9f99dfSJanosch Frank /* SPDX-License-Identifier: GPL-2.0-only */ 2f77c0515SJanosch Frank /* 3f77c0515SJanosch Frank * s390x smp 4f77c0515SJanosch Frank * 5f77c0515SJanosch Frank * Copyright (c) 2019 IBM Corp 6f77c0515SJanosch Frank * 7f77c0515SJanosch Frank * Authors: 8f77c0515SJanosch Frank * Janosch Frank <frankja@linux.ibm.com> 9f77c0515SJanosch Frank */ 10eb5a1bbaSCornelia Huck #ifndef _S390X_SMP_H_ 11eb5a1bbaSCornelia Huck #define _S390X_SMP_H_ 12f77c0515SJanosch Frank 13f77c0515SJanosch Frank #include <asm/arch_def.h> 14f77c0515SJanosch Frank 15f77c0515SJanosch Frank struct cpu_status { 16f77c0515SJanosch Frank uint64_t fprs[16]; /* 0x0000 */ 17f77c0515SJanosch Frank uint64_t grs[16]; /* 0x0080 */ 18f77c0515SJanosch Frank struct psw psw; /* 0x0100 */ 19f77c0515SJanosch Frank uint8_t pad_0x0110[0x0118 - 0x0110]; /* 0x0110 */ 20f77c0515SJanosch Frank uint32_t prefix; /* 0x0118 */ 21f77c0515SJanosch Frank uint32_t fpc; /* 0x011c */ 22f77c0515SJanosch Frank uint8_t pad_0x0120[0x0124 - 0x0120]; /* 0x0120 */ 23f77c0515SJanosch Frank uint32_t todpr; /* 0x0124 */ 24f77c0515SJanosch Frank uint64_t cputm; /* 0x0128 */ 25f77c0515SJanosch Frank uint64_t ckc; /* 0x0130 */ 26f77c0515SJanosch Frank uint8_t pad_0x0138[0x0140 - 0x0138]; /* 0x0138 */ 27f77c0515SJanosch Frank uint32_t ars[16]; /* 0x0140 */ 28f77c0515SJanosch Frank uint64_t crs[16]; /* 0x0384 */ 29f77c0515SJanosch Frank }; 30f77c0515SJanosch Frank 31f77c0515SJanosch Frank int smp_query_num_cpus(void); 32f77c0515SJanosch Frank struct cpu *smp_cpu_from_addr(uint16_t addr); 339e1e188cSClaudio Imbrenda struct cpu *smp_cpu_from_idx(uint16_t idx); 349e1e188cSClaudio Imbrenda uint16_t smp_cpu_addr(uint16_t idx); 359e1e188cSClaudio Imbrenda bool smp_cpu_stopped(uint16_t idx); 369e1e188cSClaudio Imbrenda bool smp_sense_running_status(uint16_t idx); 379e1e188cSClaudio Imbrenda int smp_cpu_restart(uint16_t idx); 38f1cdb032SEric Farman int smp_cpu_restart_nowait(uint16_t idx); 399e1e188cSClaudio Imbrenda int smp_cpu_start(uint16_t idx, struct psw psw); 409e1e188cSClaudio Imbrenda int smp_cpu_stop(uint16_t idx); 411dac4f3cSEric Farman int smp_cpu_stop_nowait(uint16_t idx); 429e1e188cSClaudio Imbrenda int smp_cpu_stop_store_status(uint16_t idx); 439e1e188cSClaudio Imbrenda int smp_cpu_destroy(uint16_t idx); 449e1e188cSClaudio Imbrenda int smp_cpu_setup(uint16_t idx, struct psw psw); 45f77c0515SJanosch Frank void smp_teardown(void); 46f77c0515SJanosch Frank void smp_setup(void); 479e1e188cSClaudio Imbrenda int smp_sigp(uint16_t idx, uint8_t order, unsigned long parm, uint32_t *status); 48*4e5dd758SClaudio Imbrenda struct lowcore *smp_get_lowcore(uint16_t idx); 49f77c0515SJanosch Frank 50f77c0515SJanosch Frank #endif 51