xref: /freebsd/sys/arm64/iommu/iommu_pmap.h (revision 16038816)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2021 Ruslan Bukin <br@bsdpad.com>
5  *
6  * This work was supported by Innovate UK project 105694, "Digital Security
7  * by Design (DSbD) Technology Platform Prototype".
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef	_ARM64_IOMMU_IOMMU_PMAP_H_
34 #define	_ARM64_IOMMU_IOMMU_PMAP_H_
35 
36 /* System MMU (SMMU). */
37 int pmap_smmu_enter(pmap_t pmap, vm_offset_t va, vm_paddr_t pa, vm_prot_t prot,
38     u_int flags);
39 int pmap_smmu_remove(pmap_t pmap, vm_offset_t va);
40 
41 /* Mali GPU */
42 int pmap_gpu_enter(pmap_t pmap, vm_offset_t va, vm_paddr_t pa,
43     vm_prot_t prot, u_int flags);
44 int pmap_gpu_remove(pmap_t pmap, vm_offset_t va);
45 
46 /* Common */
47 void iommu_pmap_remove_pages(pmap_t pmap);
48 void iommu_pmap_release(pmap_t pmap);
49 int iommu_pmap_pinit(pmap_t);
50 
51 #endif /* !_ARM64_IOMMU_IOMMU_PMAP_H_ */
52