1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
4  */
5 
6 #ifndef __IRQ_USER_H__
7 #define __IRQ_USER_H__
8 
9 #include <sysdep/ptrace.h>
10 #include <stdbool.h>
11 
12 struct irq_fd {
13 	struct irq_fd *next;
14 	void *id;
15 	int fd;
16 	int type;
17 	int irq;
18 	int events;
19 	bool active;
20 	bool pending;
21 	bool purge;
22 };
23 
24 #define IRQ_READ  0
25 #define IRQ_WRITE 1
26 #define IRQ_NONE 2
27 #define MAX_IRQ_TYPE (IRQ_NONE + 1)
28 
29 
30 
31 struct siginfo;
32 extern void sigio_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
33 extern void free_irq_by_fd(int fd);
34 extern void deactivate_fd(int fd, int irqnum);
35 extern int deactivate_all_fds(void);
36 extern int activate_ipi(int fd, int pid);
37 
38 #endif
39