/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _IO_IOMMU_H_
#define _IO_IOMMU_H_
typedef int (*iommu_init_func_t)(void);
typedef void (*iommu_cleanup_func_t)(void);
typedef void (*iommu_enable_func_t)(void);
typedef void (*iommu_disable_func_t)(void);
typedef void *(*iommu_create_domain_t)(vm_paddr_t maxaddr);
typedef void (*iommu_destroy_domain_t)(void *domain);
typedef uint64_t (*iommu_create_mapping_t)(void *domain, vm_paddr_t gpa,
vm_paddr_t hpa, uint64_t len);
typedef uint64_t (*iommu_remove_mapping_t)(void *domain, vm_paddr_t gpa,
uint64_t len);
typedef void (*iommu_add_device_t)(void *domain, uint16_t rid);
typedef void (*iommu_remove_device_t)(void *dom, uint16_t rid);
typedef void (*iommu_invalidate_tlb_t)(void *dom);
struct iommu_ops {
iommu_init_func_t init; /* module wide */
iommu_cleanup_func_t cleanup;
iommu_enable_func_t enable;
iommu_disable_func_t disable;
iommu_create_domain_t create_domain; /* domain-specific */
iommu_destroy_domain_t destroy_domain;
iommu_create_mapping_t create_mapping;
iommu_remove_mapping_t remove_mapping;
iommu_add_device_t add_device;
iommu_remove_device_t remove_device;
iommu_invalidate_tlb_t invalidate_tlb;
};
extern const struct iommu_ops iommu_ops_intel;
extern const struct iommu_ops iommu_ops_amd;
void iommu_cleanup(void);
void *iommu_host_domain(void);
void *iommu_create_domain(vm_paddr_t maxaddr);
void iommu_destroy_domain(void *dom);
void iommu_create_mapping(void *dom, vm_paddr_t gpa, vm_paddr_t hpa,
size_t len);
void iommu_remove_mapping(void *dom, vm_paddr_t gpa, size_t len);
void iommu_add_device(void *dom, uint16_t rid);
void iommu_remove_device(void *dom, uint16_t rid);
void iommu_invalidate_tlb(void *domain);
#endif
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