1 /*- 2 * Copyright (c) 2011 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _IO_IOMMU_H_ 30 #define _IO_IOMMU_H_ 31 32 typedef int (*iommu_init_func_t)(void); 33 typedef void (*iommu_cleanup_func_t)(void); 34 typedef void (*iommu_enable_func_t)(void); 35 typedef void (*iommu_disable_func_t)(void); 36 typedef void *(*iommu_create_domain_t)(vm_paddr_t maxaddr); 37 typedef void (*iommu_destroy_domain_t)(void *domain); 38 typedef uint64_t (*iommu_create_mapping_t)(void *domain, vm_paddr_t gpa, 39 vm_paddr_t hpa, uint64_t len); 40 typedef uint64_t (*iommu_remove_mapping_t)(void *domain, vm_paddr_t gpa, 41 uint64_t len); 42 typedef void (*iommu_add_device_t)(void *domain, uint16_t rid); 43 typedef void (*iommu_remove_device_t)(void *dom, uint16_t rid); 44 typedef void (*iommu_invalidate_tlb_t)(void *dom); 45 46 struct iommu_ops { 47 iommu_init_func_t init; /* module wide */ 48 iommu_cleanup_func_t cleanup; 49 iommu_enable_func_t enable; 50 iommu_disable_func_t disable; 51 52 iommu_create_domain_t create_domain; /* domain-specific */ 53 iommu_destroy_domain_t destroy_domain; 54 iommu_create_mapping_t create_mapping; 55 iommu_remove_mapping_t remove_mapping; 56 iommu_add_device_t add_device; 57 iommu_remove_device_t remove_device; 58 iommu_invalidate_tlb_t invalidate_tlb; 59 }; 60 61 extern struct iommu_ops iommu_ops_intel; 62 extern struct iommu_ops iommu_ops_amd; 63 64 void iommu_cleanup(void); 65 void *iommu_host_domain(void); 66 void *iommu_create_domain(vm_paddr_t maxaddr); 67 void iommu_destroy_domain(void *dom); 68 void iommu_create_mapping(void *dom, vm_paddr_t gpa, vm_paddr_t hpa, 69 size_t len); 70 void iommu_remove_mapping(void *dom, vm_paddr_t gpa, size_t len); 71 void iommu_add_device(void *dom, uint16_t rid); 72 void iommu_remove_device(void *dom, uint16_t rid); 73 void iommu_invalidate_tlb(void *domain); 74 #endif 75