include/uapi/misc/ocxl.h

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/* Copyright 2017 IBM Corp. */
#ifndef _UAPI_MISC_OCXL_H
#define _UAPI_MISC_OCXL_H

#include <linux/types.h>
#include <linux/ioctl.h>

enum ocxl_event_type {
	OCXL_AFU_EVENT_XSL_FAULT_ERROR = 0,
};

#define OCXL_KERNEL_EVENT_FLAG_LAST 0x0001  /* This is the last event pending */

struct ocxl_kernel_event_header {
	__u16 type;
	__u16 flags;
	__u32 reserved;
};

struct ocxl_kernel_event_xsl_fault_error {
	__u64 addr;
	__u64 dsisr;
	__u64 count;
	__u64 reserved;
};

struct ocxl_ioctl_attach {
	__u64 amr;
	__u64 reserved1;
	__u64 reserved2;
	__u64 reserved3;
};

struct ocxl_ioctl_irq_fd {
	__u64 irq_offset;
	__s32 eventfd;
	__u32 reserved;
};

/* ioctl numbers */
#define OCXL_MAGIC 0xCA
/* AFU devices */
#define OCXL_IOCTL_ATTACH	_IOW(OCXL_MAGIC, 0x10, struct ocxl_ioctl_attach)
#define OCXL_IOCTL_IRQ_ALLOC	_IOR(OCXL_MAGIC, 0x11, __u64)
#define OCXL_IOCTL_IRQ_FREE	_IOW(OCXL_MAGIC, 0x12, __u64)
#define OCXL_IOCTL_IRQ_SET_FD	_IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd)

#endif /* _UAPI_MISC_OCXL_H */