[linux-block.git] / include / linux / iova_bitmap.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2022, Oracle and/or its affiliates.
 * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved
 */
#ifndef _IOVA_BITMAP_H_
#define _IOVA_BITMAP_H_

#include <linux/types.h>

struct iova_bitmap;

typedef int (*iova_bitmap_fn_t)(struct iova_bitmap *bitmap,
				unsigned long iova, size_t length,
				void *opaque);

struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length,
				      unsigned long page_size,
				      u64 __user *data);
void iova_bitmap_free(struct iova_bitmap *bitmap);
int iova_bitmap_for_each(struct iova_bitmap *bitmap, void *opaque,
			 iova_bitmap_fn_t fn);
void iova_bitmap_set(struct iova_bitmap *bitmap,
		     unsigned long iova, size_t length);

#endif
Commit	Line	Data
58ccf019 JM	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	/*
	3	* Copyright (c) 2022, Oracle and/or its affiliates.
	4	* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved
	5	*/
	6	#ifndef _IOVA_BITMAP_H_
	7	#define _IOVA_BITMAP_H_
	8
	9	#include <linux/types.h>
	10
	11	struct iova_bitmap;
	12
	13	typedef int (iova_bitmap_fn_t)(struct iova_bitmap bitmap,
	14	unsigned long iova, size_t length,
	15	void *opaque);
	16
	17	struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length,
	18	unsigned long page_size,
	19	u64 __user *data);
	20	void iova_bitmap_free(struct iova_bitmap *bitmap);
	21	int iova_bitmap_for_each(struct iova_bitmap bitmap, void opaque,
	22	iova_bitmap_fn_t fn);
	23	void iova_bitmap_set(struct iova_bitmap *bitmap,
	24	unsigned long iova, size_t length);
	25
	26	#endif