projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 64d1c3a4 FK |
1 | /* |
| 2 | * Copyright 2018 Advanced Micro Devices, Inc. | |
| 3 | * | |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
| 5 | * copy of this software and associated documentation files (the "Software"), | |
| 6 | * to deal in the Software without restriction, including without limitation | |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the | |
| 9 | * Software is furnished to do so, subject to the following conditions: | |
| 10 | * | |
| 11 | * The above copyright notice and this permission notice shall be included in | |
| 12 | * all copies or substantial portions of the Software. | |
| 13 | * | |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef __KFD_IOMMU_H__ | |
| 24 | #define __KFD_IOMMU_H__ | |
| 25 | ||
| 26 | #if defined(CONFIG_AMD_IOMMU_V2_MODULE) || defined(CONFIG_AMD_IOMMU_V2) | |
| 27 | ||
| 28 | #define KFD_SUPPORT_IOMMU_V2 | |
| 29 | ||
| 30 | int kfd_iommu_check_device(struct kfd_dev *kfd); | |
| 31 | int kfd_iommu_device_init(struct kfd_dev *kfd); | |
| 32 | ||
| 33 | int kfd_iommu_bind_process_to_device(struct kfd_process_device *pdd); | |
| 34 | void kfd_iommu_unbind_process(struct kfd_process *p); | |
| 35 | ||
| 36 | void kfd_iommu_suspend(struct kfd_dev *kfd); | |
| 37 | int kfd_iommu_resume(struct kfd_dev *kfd); | |
| 38 | ||
| 39 | int kfd_iommu_add_perf_counters(struct kfd_topology_device *kdev); | |
| 40 | ||
| 41 | #else | |
| 42 | ||
| 43 | static inline int kfd_iommu_check_device(struct kfd_dev *kfd) | |
| 44 | { | |
| 45 | return -ENODEV; | |
| 46 | } | |
| 47 | static inline int kfd_iommu_device_init(struct kfd_dev *kfd) | |
| 48 | { | |
| 49 | return 0; | |
| 50 | } | |
| 51 | ||
| 52 | static inline int kfd_iommu_bind_process_to_device( | |
| 53 | struct kfd_process_device *pdd) | |
| 54 | { | |
| 55 | return 0; | |
| 56 | } | |
| 57 | static inline void kfd_iommu_unbind_process(struct kfd_process *p) | |
| 58 | { | |
| 59 | /* empty */ | |
| 60 | } | |
| 61 | ||
| 62 | static inline void kfd_iommu_suspend(struct kfd_dev *kfd) | |
| 63 | { | |
| 64 | /* empty */ | |
| 65 | } | |
| 66 | static inline int kfd_iommu_resume(struct kfd_dev *kfd) | |
| 67 | { | |
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static inline int kfd_iommu_add_perf_counters(struct kfd_topology_device *kdev) | |
| 72 | { | |
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 76 | #endif /* defined(CONFIG_AMD_IOMMU_V2) */ | |
| 77 | ||
| 78 | #endif /* __KFD_IOMMU_H__ */ |