diff options
Diffstat (limited to 'arch/s390/include/asm/isc.h')
| -rw-r--r-- | arch/s390/include/asm/isc.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h new file mode 100644 index 00000000000..34bb8916db4 --- /dev/null +++ b/arch/s390/include/asm/isc.h @@ -0,0 +1,25 @@ +#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 CHSC_SCH_ISC 7 /* CHSC subchannels */ +/* Adapter interrupts. */ +#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */ + +/* 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 */ |