xref: /freebsd/sys/arm64/iommu/iommu.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
14cc87010SRuslan Bukin /*-
24cc87010SRuslan Bukin  * SPDX-License-Identifier: BSD-2-Clause
34cc87010SRuslan Bukin  *
44cc87010SRuslan Bukin  * Copyright (c) 2020 Ruslan Bukin <br@bsdpad.com>
54cc87010SRuslan Bukin  *
64cc87010SRuslan Bukin  * This software was developed by SRI International and the University of
74cc87010SRuslan Bukin  * Cambridge Computer Laboratory (Department of Computer Science and
84cc87010SRuslan Bukin  * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
94cc87010SRuslan Bukin  * DARPA SSITH research programme.
104cc87010SRuslan Bukin  *
114cc87010SRuslan Bukin  * Redistribution and use in source and binary forms, with or without
124cc87010SRuslan Bukin  * modification, are permitted provided that the following conditions
134cc87010SRuslan Bukin  * are met:
144cc87010SRuslan Bukin  * 1. Redistributions of source code must retain the above copyright
154cc87010SRuslan Bukin  *    notice, this list of conditions and the following disclaimer.
164cc87010SRuslan Bukin  * 2. Redistributions in binary form must reproduce the above copyright
174cc87010SRuslan Bukin  *    notice, this list of conditions and the following disclaimer in the
184cc87010SRuslan Bukin  *    documentation and/or other materials provided with the distribution.
194cc87010SRuslan Bukin  *
204cc87010SRuslan Bukin  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
214cc87010SRuslan Bukin  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
224cc87010SRuslan Bukin  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
234cc87010SRuslan Bukin  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
244cc87010SRuslan Bukin  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
254cc87010SRuslan Bukin  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
264cc87010SRuslan Bukin  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
274cc87010SRuslan Bukin  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
284cc87010SRuslan Bukin  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
294cc87010SRuslan Bukin  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
304cc87010SRuslan Bukin  * SUCH DAMAGE.
314cc87010SRuslan Bukin  */
324cc87010SRuslan Bukin 
334cc87010SRuslan Bukin #ifndef	_ARM64_IOMMU_IOMMU_H_
344cc87010SRuslan Bukin #define	_ARM64_IOMMU_IOMMU_H_
354cc87010SRuslan Bukin 
364cc87010SRuslan Bukin #define	IOMMU_PAGE_SIZE		4096
374cc87010SRuslan Bukin #define	IOMMU_PAGE_MASK		(IOMMU_PAGE_SIZE - 1)
384cc87010SRuslan Bukin 
394cc87010SRuslan Bukin int iommu_unregister(struct iommu_unit *unit);
404cc87010SRuslan Bukin int iommu_register(struct iommu_unit *unit);
41*41ce5498SRuslan Bukin struct iommu_ctx * iommu_get_ctx_ofw(device_t dev, int channel);
424cc87010SRuslan Bukin 
434cc87010SRuslan Bukin #endif /* _ARM64_IOMMU_IOMMU_H_ */
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