/* SPDX-License-Identifier: GPL-2.0-or-later *//* * livepatch.h - powerpc-specific Kernel Live Patching Core * * Copyright (C) 2015-2016, SUSE, IBM Corp. */#ifndef _ASM_POWERPC_LIVEPATCH_H#define _ASM_POWERPC_LIVEPATCH_H #include <linux/module.h>#include <linux/ftrace.h>#include <linux/sched/task_stack.h> #ifdef CONFIG_LIVEPATCHstatic inline void klp_arch_set_pc(struct ftrace_regs *fregs, unsigned long ip){	struct pt_regs *regs = ftrace_get_regs(fregs); 	regs->nip = ip;} #define klp_get_ftrace_location klp_get_ftrace_locationstatic inline unsigned long klp_get_ftrace_location(unsigned long faddr){	/*	 * Live patch works only with -mprofile-kernel on PPC. In this case,	 * the ftrace location is always within the first 16 bytes.	 */	return ftrace_location_range(faddr, faddr + 16);} static inline void klp_init_thread_info(struct task_struct *p){	/* + 1 to account for STACK_END_MAGIC */	task_thread_info(p)->livepatch_sp = end_of_stack(p) + 1;}#elsestatic inline void klp_init_thread_info(struct task_struct *p) { }#endif /* CONFIG_LIVEPATCH */ #endif /* _ASM_POWERPC_LIVEPATCH_H */