s390/cio: introduce CIO debugfs directory

CFLAGS_vfio_ccw_trace.o := -I$(src)

obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o \

	fcx.o itcw.o crw.o ccwreq.o trace.o ioasm.o

	fcx.o itcw.o crw.o ccwreq.o trace.o ioasm.o cio_debugfs.o

ccw_device-objs += device.o device_fsm.o device_ops.o

ccw_device-objs += device_id.o device_pgid.o device_status.o

obj-y += ccw_device.o cmf.o

	debug_event(cio_debug_trace_id, level, data, length);

}

/* For the CIO debugfs related features */

extern struct dentry *cio_debugfs_dir;

#endif

// SPDX-License-Identifier: GPL-2.0

/*

 *   S/390 common I/O debugfs interface

 *

 *    Copyright IBM Corp. 2021

 *    Author(s): Vineeth Vijayan <vneethv@linux.ibm.com>

 */

#include <linux/debugfs.h>

#include "cio_debug.h"

struct dentry *cio_debugfs_dir;

/* Create the debugfs directory for CIO under the arch_debugfs_dir

 * i.e /sys/kernel/debug/s390/cio

 */

static int __init cio_debugfs_init(void)

{

	cio_debugfs_dir = debugfs_create_dir("cio", arch_debugfs_dir);

	return 0;

}

subsys_initcall(cio_debugfs_init);