mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 23:15:26 +07:00
9f30f62163
The patch implements a handler for GIB alert interruptions
on the host. Its task is to alert guests that interrupts are
pending for them.
A GIB alert interrupt statistic counter is added as well:
$ cat /proc/interrupts
CPU0 CPU1
...
GAL: 23 37 [I/O] GIB Alert
...
Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20190131085247.13826-14-mimu@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#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 */
|
|
#define VFIO_CCW_ISC IO_SCH_ISC /* VFIO-CCW I/O 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 GAL_ISC 5 /* GIB alert */
|
|
#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 */
|