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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */2/* Copyright 2017 IBM Corp. */3#ifndef _UAPI_MISC_OCXL_H4#define _UAPI_MISC_OCXL_H5 6#include <linux/types.h>7#include <linux/ioctl.h>8 9enum ocxl_event_type {10 OCXL_AFU_EVENT_XSL_FAULT_ERROR = 0,11};12 13#define OCXL_KERNEL_EVENT_FLAG_LAST 0x0001 /* This is the last event pending */14 15struct ocxl_kernel_event_header {16 __u16 type;17 __u16 flags;18 __u32 reserved;19};20 21struct ocxl_kernel_event_xsl_fault_error {22 __u64 addr;23 __u64 dsisr;24 __u64 count;25 __u64 reserved;26};27 28struct ocxl_ioctl_attach {29 __u64 amr;30 __u64 reserved1;31 __u64 reserved2;32 __u64 reserved3;33};34 35struct ocxl_ioctl_metadata {36 __u16 version; /* struct version, always backwards compatible */37 38 /* Version 0 fields */39 __u8 afu_version_major;40 __u8 afu_version_minor;41 __u32 pasid; /* PASID assigned to the current context */42 43 __u64 pp_mmio_size; /* Per PASID MMIO size */44 __u64 global_mmio_size;45 46 /* End version 0 fields */47 48 __u64 reserved[13]; /* Total of 16*u64 */49};50 51struct ocxl_ioctl_p9_wait {52 __u16 thread_id; /* The thread ID required to wake this thread */53 __u16 reserved1;54 __u32 reserved2;55 __u64 reserved3[3];56};57 58#define OCXL_IOCTL_FEATURES_FLAGS0_P9_WAIT 0x0159struct ocxl_ioctl_features {60 __u64 flags[4];61};62 63struct ocxl_ioctl_irq_fd {64 __u64 irq_offset;65 __s32 eventfd;66 __u32 reserved;67};68 69/* ioctl numbers */70#define OCXL_MAGIC 0xCA71/* AFU devices */72#define OCXL_IOCTL_ATTACH _IOW(OCXL_MAGIC, 0x10, struct ocxl_ioctl_attach)73#define OCXL_IOCTL_IRQ_ALLOC _IOR(OCXL_MAGIC, 0x11, __u64)74#define OCXL_IOCTL_IRQ_FREE _IOW(OCXL_MAGIC, 0x12, __u64)75#define OCXL_IOCTL_IRQ_SET_FD _IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd)76#define OCXL_IOCTL_GET_METADATA _IOR(OCXL_MAGIC, 0x14, struct ocxl_ioctl_metadata)77#define OCXL_IOCTL_ENABLE_P9_WAIT _IOR(OCXL_MAGIC, 0x15, struct ocxl_ioctl_p9_wait)78#define OCXL_IOCTL_GET_FEATURES _IOR(OCXL_MAGIC, 0x16, struct ocxl_ioctl_features)79 80#endif /* _UAPI_MISC_OCXL_H */81