root/arch/um/include/shared/irq_user.h

INCLUDED FROM

   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