From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/sysrq.h | 75 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 kernel/include/linux/sysrq.h (limited to 'kernel/include/linux/sysrq.h') diff --git a/kernel/include/linux/sysrq.h b/kernel/include/linux/sysrq.h new file mode 100644 index 000000000..387fa7d05 --- /dev/null +++ b/kernel/include/linux/sysrq.h @@ -0,0 +1,75 @@ +/* -*- linux-c -*- + * + * $Id: sysrq.h,v 1.3 1997/07/17 11:54:33 mj Exp $ + * + * Linux Magic System Request Key Hacks + * + * (c) 1997 Martin Mares + * + * (c) 2000 Crutcher Dunnavant + * overhauled to use key registration + * based upon discusions in irc://irc.openprojects.net/#kernelnewbies + */ + +#ifndef _LINUX_SYSRQ_H +#define _LINUX_SYSRQ_H + +#include +#include + +/* Possible values of bitmask for enabling sysrq functions */ +/* 0x0001 is reserved for enable everything */ +#define SYSRQ_ENABLE_LOG 0x0002 +#define SYSRQ_ENABLE_KEYBOARD 0x0004 +#define SYSRQ_ENABLE_DUMP 0x0008 +#define SYSRQ_ENABLE_SYNC 0x0010 +#define SYSRQ_ENABLE_REMOUNT 0x0020 +#define SYSRQ_ENABLE_SIGNAL 0x0040 +#define SYSRQ_ENABLE_BOOT 0x0080 +#define SYSRQ_ENABLE_RTNICE 0x0100 + +struct sysrq_key_op { + void (*handler)(int); + char *help_msg; + char *action_msg; + int enable_mask; +}; + +#ifdef CONFIG_MAGIC_SYSRQ + +/* Generic SysRq interface -- you may call it from any device driver, supplying + * ASCII code of the key, pointer to registers and kbd/tty structs (if they + * are available -- else NULL's). + */ + +void handle_sysrq(int key); +void __handle_sysrq(int key, bool check_mask); +int register_sysrq_key(int key, struct sysrq_key_op *op); +int unregister_sysrq_key(int key, struct sysrq_key_op *op); +struct sysrq_key_op *__sysrq_get_key_op(int key); + +int sysrq_toggle_support(int enable_mask); + +#else + +static inline void handle_sysrq(int key) +{ +} + +static inline void __handle_sysrq(int key, bool check_mask) +{ +} + +static inline int register_sysrq_key(int key, struct sysrq_key_op *op) +{ + return -EINVAL; +} + +static inline int unregister_sysrq_key(int key, struct sysrq_key_op *op) +{ + return -EINVAL; +} + +#endif + +#endif /* _LINUX_SYSRQ_H */ -- cgit 1.2.3-korg