| Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 2 | /* |
| Russell King | 4baa992 | 2008-08-02 10:55:55 +0100 | [diff] [blame] | 3 | * arch/arm/include/asm/thread_notify.h |
| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 4 | * |
| 5 | * Copyright (C) 2006 Russell King. |
| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 6 | */ |
| 7 | #ifndef ASMARM_THREAD_NOTIFY_H |
| 8 | #define ASMARM_THREAD_NOTIFY_H |
| 9 | |
| 10 | #ifdef __KERNEL__ |
| 11 | |
| 12 | #ifndef __ASSEMBLY__ |
| 13 | |
| 14 | #include <linux/notifier.h> |
| 15 | #include <asm/thread_info.h> |
| 16 | |
| 17 | static inline int thread_register_notifier(struct notifier_block *n) |
| 18 | { |
| 19 | extern struct atomic_notifier_head thread_notify_head; |
| 20 | return atomic_notifier_chain_register(&thread_notify_head, n); |
| 21 | } |
| 22 | |
| 23 | static inline void thread_unregister_notifier(struct notifier_block *n) |
| 24 | { |
| 25 | extern struct atomic_notifier_head thread_notify_head; |
| 26 | atomic_notifier_chain_unregister(&thread_notify_head, n); |
| 27 | } |
| 28 | |
| 29 | static inline void thread_notify(unsigned long rc, struct thread_info *thread) |
| 30 | { |
| 31 | extern struct atomic_notifier_head thread_notify_head; |
| 32 | atomic_notifier_call_chain(&thread_notify_head, rc, thread); |
| 33 | } |
| 34 | |
| 35 | #endif |
| 36 | |
| 37 | /* |
| 38 | * These are the reason codes for the thread notifier. |
| 39 | */ |
| 40 | #define THREAD_NOTIFY_FLUSH 0 |
| Russell King | 797245f | 2009-12-18 14:34:43 +0000 | [diff] [blame] | 41 | #define THREAD_NOTIFY_EXIT 1 |
| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 42 | #define THREAD_NOTIFY_SWITCH 2 |
| Catalin Marinas | 2e82669a | 2011-04-06 16:16:29 +0100 | [diff] [blame] | 43 | #define THREAD_NOTIFY_COPY 3 |
| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 44 | |
| 45 | #endif |
| 46 | #endif |