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kernel add
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#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 */
/* Adapter interrupts. */
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */
#define PCI_ISC 2 /* PCI I/O subchannels */
#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 */
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