1*6c9f99dfSJanosch 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 */ 10f77c0515SJanosch Frank #ifndef SMP_H 11f77c0515SJanosch Frank #define SMP_H 12f77c0515SJanosch Frank 13f77c0515SJanosch Frank #include <asm/arch_def.h> 14f77c0515SJanosch Frank 15f77c0515SJanosch Frank struct cpu { 16f77c0515SJanosch Frank struct lowcore *lowcore; 17f77c0515SJanosch Frank uint64_t *stack; 18f77c0515SJanosch Frank uint16_t addr; 19f77c0515SJanosch Frank bool active; 20f77c0515SJanosch Frank }; 21f77c0515SJanosch Frank 22f77c0515SJanosch Frank struct cpu_status { 23f77c0515SJanosch Frank uint64_t fprs[16]; /* 0x0000 */ 24f77c0515SJanosch Frank uint64_t grs[16]; /* 0x0080 */ 25f77c0515SJanosch Frank struct psw psw; /* 0x0100 */ 26f77c0515SJanosch Frank uint8_t pad_0x0110[0x0118 - 0x0110]; /* 0x0110 */ 27f77c0515SJanosch Frank uint32_t prefix; /* 0x0118 */ 28f77c0515SJanosch Frank uint32_t fpc; /* 0x011c */ 29f77c0515SJanosch Frank uint8_t pad_0x0120[0x0124 - 0x0120]; /* 0x0120 */ 30f77c0515SJanosch Frank uint32_t todpr; /* 0x0124 */ 31f77c0515SJanosch Frank uint64_t cputm; /* 0x0128 */ 32f77c0515SJanosch Frank uint64_t ckc; /* 0x0130 */ 33f77c0515SJanosch Frank uint8_t pad_0x0138[0x0140 - 0x0138]; /* 0x0138 */ 34f77c0515SJanosch Frank uint32_t ars[16]; /* 0x0140 */ 35f77c0515SJanosch Frank uint64_t crs[16]; /* 0x0384 */ 36f77c0515SJanosch Frank }; 37f77c0515SJanosch Frank 38f77c0515SJanosch Frank int smp_query_num_cpus(void); 39f77c0515SJanosch Frank struct cpu *smp_cpu_from_addr(uint16_t addr); 40f77c0515SJanosch Frank bool smp_cpu_stopped(uint16_t addr); 419753bf43SChristian Borntraeger bool smp_sense_running_status(uint16_t addr); 42f77c0515SJanosch Frank int smp_cpu_restart(uint16_t addr); 43f77c0515SJanosch Frank int smp_cpu_start(uint16_t addr, struct psw psw); 44f77c0515SJanosch Frank int smp_cpu_stop(uint16_t addr); 45f77c0515SJanosch Frank int smp_cpu_stop_store_status(uint16_t addr); 46f77c0515SJanosch Frank int smp_cpu_destroy(uint16_t addr); 47f77c0515SJanosch Frank int smp_cpu_setup(uint16_t addr, struct psw psw); 48f77c0515SJanosch Frank void smp_teardown(void); 49f77c0515SJanosch Frank void smp_setup(void); 50f77c0515SJanosch Frank 51f77c0515SJanosch Frank #endif 52