/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_ISC_H
#define _ASM_S390_ISC_H

#include <linux/types.h>

/*
 * I/O interruption subclasses used by drivers.
 * Please add all used iscs here so that it is possible to distribute
 * isc usage between drivers.
 * Reminder: 0 is highest priority, 7 lowest.
 */
#define MAX_ISC 7

/* Regular I/O interrupts. */
#define IO_SCH_ISC 3                    /* regular I/O subchannels */
#define CONSOLE_ISC 1                   /* console I/O subchannel */
#define EADM_SCH_ISC 4                  /* EADM subchannels */
#define CHSC_SCH_ISC 7                  /* CHSC subchannels */
#define VFIO_CCW_ISC IO_SCH_ISC         /* VFIO-CCW I/O subchannels */
/* Adapter interrupts. */
#define QDIO_AIRQ_ISC IO_SCH_ISC        /* I/O subchannel in qdio mode */
#define PCI_ISC 2                       /* PCI I/O subchannels */
#define GAL_ISC 5                       /* GIB alert */
#define AP_ISC 6                        /* adjunct processor (crypto) devices */

/* Functions for registration of I/O interruption subclasses */
void isc_register(unsigned int isc);
void isc_unregister(unsigned int isc);

#endif /* _ASM_S390_ISC_H */