1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright 2023 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 */ 24 25 #ifndef AMDGPU_EV_FENCE_H_ 26 #define AMDGPU_EV_FENCE_H_ 27 28 struct amdgpu_eviction_fence { 29 struct dma_fence base; 30 spinlock_t lock; 31 char timeline_name[TASK_COMM_LEN]; 32 struct amdgpu_eviction_fence_mgr *evf_mgr; 33 }; 34 35 struct amdgpu_eviction_fence_mgr { 36 u64 ev_fence_ctx; 37 atomic_t ev_fence_seq; 38 spinlock_t ev_fence_lock; 39 struct amdgpu_eviction_fence *ev_fence; 40 struct delayed_work suspend_work; 41 uint8_t fd_closing; 42 }; 43 44 /* Eviction fence helper functions */ 45 struct amdgpu_eviction_fence * 46 amdgpu_eviction_fence_create(struct amdgpu_eviction_fence_mgr *evf_mgr); 47 48 void 49 amdgpu_eviction_fence_destroy(struct amdgpu_eviction_fence_mgr *evf_mgr); 50 51 int 52 amdgpu_eviction_fence_attach(struct amdgpu_eviction_fence_mgr *evf_mgr, 53 struct amdgpu_bo *bo); 54 55 void 56 amdgpu_eviction_fence_detach(struct amdgpu_eviction_fence_mgr *evf_mgr, 57 struct amdgpu_bo *bo); 58 59 int 60 amdgpu_eviction_fence_init(struct amdgpu_eviction_fence_mgr *evf_mgr); 61 62 void 63 amdgpu_eviction_fence_signal(struct amdgpu_eviction_fence_mgr *evf_mgr, 64 struct amdgpu_eviction_fence *ev_fence); 65 66 int 67 amdgpu_eviction_fence_replace_fence(struct amdgpu_eviction_fence_mgr *evf_mgr, 68 struct drm_exec *exec); 69 #endif 70