arch/s390/include/asm/isc.h

   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 */