1366f6083SPeter Grehan /*- 24d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 3c49761ddSPedro F. Giffuni * 4366f6083SPeter Grehan * Copyright (c) 2011 NetApp, Inc. 5366f6083SPeter Grehan * All rights reserved. 6366f6083SPeter Grehan * 7366f6083SPeter Grehan * Redistribution and use in source and binary forms, with or without 8366f6083SPeter Grehan * modification, are permitted provided that the following conditions 9366f6083SPeter Grehan * are met: 10366f6083SPeter Grehan * 1. Redistributions of source code must retain the above copyright 11366f6083SPeter Grehan * notice, this list of conditions and the following disclaimer. 12366f6083SPeter Grehan * 2. Redistributions in binary form must reproduce the above copyright 13366f6083SPeter Grehan * notice, this list of conditions and the following disclaimer in the 14366f6083SPeter Grehan * documentation and/or other materials provided with the distribution. 15366f6083SPeter Grehan * 16366f6083SPeter Grehan * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17366f6083SPeter Grehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18366f6083SPeter Grehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19366f6083SPeter Grehan * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20366f6083SPeter Grehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21366f6083SPeter Grehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22366f6083SPeter Grehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23366f6083SPeter Grehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24366f6083SPeter Grehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25366f6083SPeter Grehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26366f6083SPeter Grehan * SUCH DAMAGE. 27366f6083SPeter Grehan */ 28366f6083SPeter Grehan 29366f6083SPeter Grehan #ifndef _IO_IOMMU_H_ 30366f6083SPeter Grehan #define _IO_IOMMU_H_ 31366f6083SPeter Grehan 32366f6083SPeter Grehan typedef int (*iommu_init_func_t)(void); 33366f6083SPeter Grehan typedef void (*iommu_cleanup_func_t)(void); 34366f6083SPeter Grehan typedef void (*iommu_enable_func_t)(void); 35366f6083SPeter Grehan typedef void (*iommu_disable_func_t)(void); 36366f6083SPeter Grehan typedef void *(*iommu_create_domain_t)(vm_paddr_t maxaddr); 37366f6083SPeter Grehan typedef void (*iommu_destroy_domain_t)(void *domain); 38*2eeb95ccSKonstantin Belousov typedef int (*iommu_create_mapping_t)(void *domain, vm_paddr_t gpa, 39*2eeb95ccSKonstantin Belousov vm_paddr_t hpa, uint64_t len, uint64_t *res_len); 40*2eeb95ccSKonstantin Belousov typedef int (*iommu_remove_mapping_t)(void *domain, vm_paddr_t gpa, 41*2eeb95ccSKonstantin Belousov uint64_t len, uint64_t *res_len); 42*2eeb95ccSKonstantin Belousov typedef int (*iommu_add_device_t)(void *domain, device_t dev, uint16_t rid); 43*2eeb95ccSKonstantin Belousov typedef int (*iommu_remove_device_t)(void *dom, device_t dev, uint16_t rid); 44*2eeb95ccSKonstantin Belousov typedef int (*iommu_invalidate_tlb_t)(void *dom); 45366f6083SPeter Grehan 46366f6083SPeter Grehan struct iommu_ops { 47366f6083SPeter Grehan iommu_init_func_t init; /* module wide */ 48366f6083SPeter Grehan iommu_cleanup_func_t cleanup; 49366f6083SPeter Grehan iommu_enable_func_t enable; 50366f6083SPeter Grehan iommu_disable_func_t disable; 51366f6083SPeter Grehan 52366f6083SPeter Grehan iommu_create_domain_t create_domain; /* domain-specific */ 53366f6083SPeter Grehan iommu_destroy_domain_t destroy_domain; 54366f6083SPeter Grehan iommu_create_mapping_t create_mapping; 557ce04d0aSNeel Natu iommu_remove_mapping_t remove_mapping; 56366f6083SPeter Grehan iommu_add_device_t add_device; 57366f6083SPeter Grehan iommu_remove_device_t remove_device; 587ce04d0aSNeel Natu iommu_invalidate_tlb_t invalidate_tlb; 59366f6083SPeter Grehan }; 60366f6083SPeter Grehan 6141335c6bSMark Johnston extern const struct iommu_ops iommu_ops_intel; 6241335c6bSMark Johnston extern const struct iommu_ops iommu_ops_amd; 63366f6083SPeter Grehan 64366f6083SPeter Grehan void iommu_cleanup(void); 657ce04d0aSNeel Natu void *iommu_host_domain(void); 66366f6083SPeter Grehan void *iommu_create_domain(vm_paddr_t maxaddr); 67366f6083SPeter Grehan void iommu_destroy_domain(void *dom); 68*2eeb95ccSKonstantin Belousov int iommu_create_mapping(void *dom, vm_paddr_t gpa, vm_paddr_t hpa, 69366f6083SPeter Grehan size_t len); 70*2eeb95ccSKonstantin Belousov int iommu_remove_mapping(void *dom, vm_paddr_t gpa, size_t len); 71*2eeb95ccSKonstantin Belousov int iommu_add_device(void *dom, device_t dev, uint16_t rid); 72*2eeb95ccSKonstantin Belousov int iommu_remove_device(void *dom, device_t dev, uint16_t rid); 73*2eeb95ccSKonstantin Belousov int iommu_invalidate_tlb(void *domain); 74366f6083SPeter Grehan #endif 75