linux/drivers/xen/gntdev-common.h

/* SPDX-License-Identifier: GPL-2.0 */

/*
 * Common functionality of grant device.
 *
 * Copyright (c) 2006-2007, D G Murray.
 *           (c) 2009 Gerd Hoffmann <[email protected]>
 *           (c) 2018 Oleksandr Andrushchenko, EPAM Systems Inc.
 */

#ifndef _GNTDEV_COMMON_H
#define _GNTDEV_COMMON_H

#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/mmu_notifier.h>
#include <linux/types.h>
#include <xen/interface/event_channel.h>
#include <xen/grant_table.h>

struct gntdev_dmabuf_priv;

struct gntdev_priv { … };

struct gntdev_unmap_notify { … };

struct gntdev_grant_map { … };

struct gntdev_grant_map *gntdev_alloc_map(struct gntdev_priv *priv, int count,
					  int dma_flags);

void gntdev_add_map(struct gntdev_priv *priv, struct gntdev_grant_map *add);

void gntdev_put_map(struct gntdev_priv *priv, struct gntdev_grant_map *map);

bool gntdev_test_page_count(unsigned int count);

int gntdev_map_grant_pages(struct gntdev_grant_map *map);

#endif