11ccea77eSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 2f63e6d89SMichael Ellerman /* 3f63e6d89SMichael Ellerman * livepatch.h - powerpc-specific Kernel Live Patching Core 4f63e6d89SMichael Ellerman * 5f63e6d89SMichael Ellerman * Copyright (C) 2015-2016, SUSE, IBM Corp. 6f63e6d89SMichael Ellerman */ 7f63e6d89SMichael Ellerman #ifndef _ASM_POWERPC_LIVEPATCH_H 8f63e6d89SMichael Ellerman #define _ASM_POWERPC_LIVEPATCH_H 9f63e6d89SMichael Ellerman 10*5d7c8545SChristophe Leroy #include <linux/sched.h> 11ed1cd6deSChristophe Leroy #include <linux/sched/task_stack.h> 12f63e6d89SMichael Ellerman 13a4520b25SChristophe Leroy #ifdef CONFIG_LIVEPATCH_64 klp_init_thread_info(struct task_struct * p)14ed1cd6deSChristophe Leroystatic inline void klp_init_thread_info(struct task_struct *p) 155d31a96eSMichael Ellerman { 165d31a96eSMichael Ellerman /* + 1 to account for STACK_END_MAGIC */ 17ed1cd6deSChristophe Leroy task_thread_info(p)->livepatch_sp = end_of_stack(p) + 1; 185d31a96eSMichael Ellerman } 195d31a96eSMichael Ellerman #else klp_init_thread_info(struct task_struct * p)20ed1cd6deSChristophe Leroystatic inline void klp_init_thread_info(struct task_struct *p) { } 21a4520b25SChristophe Leroy #endif 22f63e6d89SMichael Ellerman 23f63e6d89SMichael Ellerman #endif /* _ASM_POWERPC_LIVEPATCH_H */ 24