1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_S390_ISC_H 3#define _ASM_S390_ISC_H 4 5#include <linux/types.h> 6 7/* 8 * I/O interruption subclasses used by drivers. 9 * Please add all used iscs here so that it is possible to distribute 10 * isc usage between drivers. 11 * Reminder: 0 is highest priority, 7 lowest. 12 */ 13#define MAX_ISC 7 14 15/* Regular I/O interrupts. */ 16#define IO_SCH_ISC 3 /* regular I/O subchannels */ 17#define CONSOLE_ISC 1 /* console I/O subchannel */ 18#define EADM_SCH_ISC 4 /* EADM subchannels */ 19#define CHSC_SCH_ISC 7 /* CHSC subchannels */ 20#define VFIO_CCW_ISC IO_SCH_ISC /* VFIO-CCW I/O subchannels */ 21/* Adapter interrupts. */ 22#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */ 23#define PCI_ISC 2 /* PCI I/O subchannels */ 24#define GAL_ISC 5 /* GIB alert */ 25#define AP_ISC 6 /* adjunct processor (crypto) devices */ 26 27/* Functions for registration of I/O interruption subclasses */ 28void isc_register(unsigned int isc); 29void isc_unregister(unsigned int isc); 30 31#endif /* _ASM_S390_ISC_H */ 32