linux/include/linux/vfio_pci_core.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2012 Red Hat, Inc.  All rights reserved.
 *     Author: Alex Williamson <[email protected]>
 *
 * Derived from original vfio:
 * Copyright 2010 Cisco Systems, Inc.  All rights reserved.
 * Author: Tom Lyon, [email protected]
 */

#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/vfio.h>
#include <linux/irqbypass.h>
#include <linux/types.h>
#include <linux/uuid.h>
#include <linux/notifier.h>

#ifndef VFIO_PCI_CORE_H
#define VFIO_PCI_CORE_H

#define VFIO_PCI_OFFSET_SHIFT …
#define VFIO_PCI_OFFSET_TO_INDEX(off) …
#define VFIO_PCI_INDEX_TO_OFFSET(index) …
#define VFIO_PCI_OFFSET_MASK …

struct vfio_pci_core_device;
struct vfio_pci_region;

struct vfio_pci_regops { … };

struct vfio_pci_region { … };

struct vfio_pci_core_device { … };

/* Will be exported for vfio pci drivers usage */
int vfio_pci_core_register_dev_region(struct vfio_pci_core_device *vdev,
				      unsigned int type, unsigned int subtype,
				      const struct vfio_pci_regops *ops,
				      size_t size, u32 flags, void *data);
void vfio_pci_core_set_params(bool nointxmask, bool is_disable_vga,
			      bool is_disable_idle_d3);
void vfio_pci_core_close_device(struct vfio_device *core_vdev);
int vfio_pci_core_init_dev(struct vfio_device *core_vdev);
void vfio_pci_core_release_dev(struct vfio_device *core_vdev);
int vfio_pci_core_register_device(struct vfio_pci_core_device *vdev);
void vfio_pci_core_unregister_device(struct vfio_pci_core_device *vdev);
extern const struct pci_error_handlers vfio_pci_core_err_handlers;
int vfio_pci_core_sriov_configure(struct vfio_pci_core_device *vdev,
				  int nr_virtfn);
long vfio_pci_core_ioctl(struct vfio_device *core_vdev, unsigned int cmd,
		unsigned long arg);
int vfio_pci_core_ioctl_feature(struct vfio_device *device, u32 flags,
				void __user *arg, size_t argsz);
ssize_t vfio_pci_core_read(struct vfio_device *core_vdev, char __user *buf,
		size_t count, loff_t *ppos);
ssize_t vfio_pci_core_write(struct vfio_device *core_vdev, const char __user *buf,
		size_t count, loff_t *ppos);
int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma);
void vfio_pci_core_request(struct vfio_device *core_vdev, unsigned int count);
int vfio_pci_core_match(struct vfio_device *core_vdev, char *buf);
int vfio_pci_core_enable(struct vfio_pci_core_device *vdev);
void vfio_pci_core_disable(struct vfio_pci_core_device *vdev);
void vfio_pci_core_finish_enable(struct vfio_pci_core_device *vdev);
int vfio_pci_core_setup_barmap(struct vfio_pci_core_device *vdev, int bar);
pci_ers_result_t vfio_pci_core_aer_err_detected(struct pci_dev *pdev,
						pci_channel_state_t state);
ssize_t vfio_pci_core_do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem,
			       void __iomem *io, char __user *buf,
			       loff_t off, size_t count, size_t x_start,
			       size_t x_end, bool iswrite);
bool vfio_pci_core_range_intersect_range(loff_t buf_start, size_t buf_cnt,
					 loff_t reg_start, size_t reg_cnt,
					 loff_t *buf_offset,
					 size_t *intersect_count,
					 size_t *register_offset);
#define VFIO_IOWRITE_DECLARATION(size) …

VFIO_IOWRITE_DECLARATION(8)
VFIO_IOWRITE_DECLARATION(16)
VFIO_IOWRITE_DECLARATION(32)
#ifdef iowrite64
VFIO_IOWRITE_DECLARATION(64)
#endif

#define VFIO_IOREAD_DECLARATION(size) …

VFIO_IOREAD_DECLARATION(8)
VFIO_IOREAD_DECLARATION(16)
VFIO_IOREAD_DECLARATION(32)
#ifdef ioread64
VFIO_IOREAD_DECLARATION(64)
#endif

#endif /* VFIO_PCI_CORE_H */