1cd1aebf5SMark Rutland /* 2cd1aebf5SMark Rutland * Copyright (C) 2013 ARM Ltd. 3cd1aebf5SMark Rutland * 4cd1aebf5SMark Rutland * This program is free software; you can redistribute it and/or modify 5cd1aebf5SMark Rutland * it under the terms of the GNU General Public License version 2 as 6cd1aebf5SMark Rutland * published by the Free Software Foundation. 7cd1aebf5SMark Rutland * 8cd1aebf5SMark Rutland * This program is distributed in the hope that it will be useful, 9cd1aebf5SMark Rutland * but WITHOUT ANY WARRANTY; without even the implied warranty of 10cd1aebf5SMark Rutland * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11cd1aebf5SMark Rutland * GNU General Public License for more details. 12cd1aebf5SMark Rutland * 13cd1aebf5SMark Rutland * You should have received a copy of the GNU General Public License 14cd1aebf5SMark Rutland * along with this program. If not, see <http://www.gnu.org/licenses/>. 15cd1aebf5SMark Rutland */ 16cd1aebf5SMark Rutland #ifndef __ASM_CPU_OPS_H 17cd1aebf5SMark Rutland #define __ASM_CPU_OPS_H 18cd1aebf5SMark Rutland 19cd1aebf5SMark Rutland #include <linux/init.h> 20cd1aebf5SMark Rutland #include <linux/threads.h> 21cd1aebf5SMark Rutland 22cd1aebf5SMark Rutland struct device_node; 23cd1aebf5SMark Rutland 24652af899SMark Rutland /** 25652af899SMark Rutland * struct cpu_operations - Callback operations for hotplugging CPUs. 26652af899SMark Rutland * 27652af899SMark Rutland * @name: Name of the property as appears in a devicetree cpu node's 28652af899SMark Rutland * enable-method property. 29652af899SMark Rutland * @cpu_init: Reads any data necessary for a specific enable-method from the 30652af899SMark Rutland * devicetree, for a given cpu node and proposed logical id. 31652af899SMark Rutland * @cpu_prepare: Early one-time preparation step for a cpu. If there is a 32652af899SMark Rutland * mechanism for doing so, tests whether it is possible to boot 33652af899SMark Rutland * the given CPU. 34652af899SMark Rutland * @cpu_boot: Boots a cpu into the kernel. 35652af899SMark Rutland * @cpu_postboot: Optionally, perform any post-boot cleanup or necesary 36652af899SMark Rutland * synchronisation. Called from the cpu being booted. 37652af899SMark Rutland */ 38cd1aebf5SMark Rutland struct cpu_operations { 39cd1aebf5SMark Rutland const char *name; 40cd1aebf5SMark Rutland int (*cpu_init)(struct device_node *, unsigned int); 41cd1aebf5SMark Rutland int (*cpu_prepare)(unsigned int); 42652af899SMark Rutland int (*cpu_boot)(unsigned int); 43652af899SMark Rutland void (*cpu_postboot)(void); 44cd1aebf5SMark Rutland }; 45cd1aebf5SMark Rutland 46cd1aebf5SMark Rutland extern const struct cpu_operations *cpu_ops[NR_CPUS]; 47*e8765b26SMark Rutland extern int __init cpu_read_ops(struct device_node *dn, int cpu); 48*e8765b26SMark Rutland extern void __init cpu_read_bootcpu_ops(void); 49cd1aebf5SMark Rutland 50cd1aebf5SMark Rutland #endif /* ifndef __ASM_CPU_OPS_H */ 51