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 31 #ifndef _ARM64_IOMMU_IOMMU_PMAP_H_ 32 #define _ARM64_IOMMU_IOMMU_PMAP_H_ 33 34 struct smmu_pmap { 35 struct mtx sp_mtx; 36 vm_paddr_t sp_l0_paddr; 37 pd_entry_t *sp_l0; 38 #ifdef INVARIANTS 39 long sp_resident_count; 40 #endif 41 }; 42 43 /* System MMU (SMMU). */ 44 int smmu_pmap_enter(struct smmu_pmap *pmap, vm_offset_t va, vm_paddr_t pa, 45 vm_prot_t prot, u_int flags); 46 int smmu_pmap_remove(struct smmu_pmap *pmap, vm_offset_t va); 47 48 /* Mali GPU */ 49 int pmap_gpu_enter(struct smmu_pmap *pmap, vm_offset_t va, vm_paddr_t pa, 50 vm_prot_t prot, u_int flags); 51 int pmap_gpu_remove(struct smmu_pmap *pmap, vm_offset_t va); 52 53 /* Common */ 54 void smmu_pmap_remove_pages(struct smmu_pmap *pmap); 55 void smmu_pmap_release(struct smmu_pmap *pmap); 56 int smmu_pmap_pinit(struct smmu_pmap *pmap); 57 58 #endif /* !_ARM64_IOMMU_IOMMU_PMAP_H_ */ 59