/* $NetBSD: kfd_iommu.h,v 1.2 2021/12/18 23:44:59 riastradh Exp $ */ /* * Copyright 2018 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __KFD_IOMMU_H__ #define __KFD_IOMMU_H__ #if defined(CONFIG_AMD_IOMMU_V2_MODULE) || defined(CONFIG_AMD_IOMMU_V2) #define KFD_SUPPORT_IOMMU_V2 int kfd_iommu_check_device(struct kfd_dev *kfd); int kfd_iommu_device_init(struct kfd_dev *kfd); int kfd_iommu_bind_process_to_device(struct kfd_process_device *pdd); void kfd_iommu_unbind_process(struct kfd_process *p); void kfd_iommu_suspend(struct kfd_dev *kfd); int kfd_iommu_resume(struct kfd_dev *kfd); int kfd_iommu_add_perf_counters(struct kfd_topology_device *kdev); #else static inline int kfd_iommu_check_device(struct kfd_dev *kfd) { return -ENODEV; } static inline int kfd_iommu_device_init(struct kfd_dev *kfd) { return 0; } static inline int kfd_iommu_bind_process_to_device( struct kfd_process_device *pdd) { return 0; } static inline void kfd_iommu_unbind_process(struct kfd_process *p) { /* empty */ } static inline void kfd_iommu_suspend(struct kfd_dev *kfd) { /* empty */ } static inline int kfd_iommu_resume(struct kfd_dev *kfd) { return 0; } static inline int kfd_iommu_add_perf_counters(struct kfd_topology_device *kdev) { return 0; } #endif /* defined(CONFIG_AMD_IOMMU_V2) */ #endif /* __KFD_IOMMU_H__ */ |