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 AP_ISC 6 /* adjunct processor (crypto) devices */ 25 26 /* Functions for registration of I/O interruption subclasses */ 27 void isc_register(unsigned int isc); 28 void isc_unregister(unsigned int isc); 29 30 #endif /* _ASM_S390_ISC_H */ 31