1 /* 2 * SPDX-FileCopyrightText: Copyright (c) 2016-2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved. 3 * SPDX-License-Identifier: MIT 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #include "core/core.h" 25 #include "gpu/gpu.h" 26 #include "os/os.h" 27 #include "gpu/mem_mgr/mem_scrub.h" 28 #include "gpu/mem_mgr/mem_mgr.h" 29 #include "gpu/mem_mgr/heap.h" 30 #include "gpu/mem_mgr/mem_desc.h" 31 #include "kernel/gpu/mig_mgr/kernel_mig_manager.h" 32 #include "kernel/gpu/fifo/kernel_fifo.h" 33 34 /*! 35 * Performs initialization that is dependant on work done in gpuStateLoad() such 36 * as channel initialization. 37 */ 38 NV_STATUS 39 memmgrScrubHandlePostSchedulingEnable_GP100 40 ( 41 OBJGPU *pGpu, 42 MemoryManager *pMemoryManager 43 ) 44 { 45 Heap *pHeap = GPU_GET_HEAP(pGpu); 46 NvBool bIsMIGEnabled = IS_MIG_ENABLED(pGpu); 47 KernelMIGManager *pKernelMIGManager = GPU_GET_KERNEL_MIG_MANAGER(pGpu); 48 NvBool bIsVgpuLegacyPolicy = (pKernelMIGManager != NULL) && kmigmgrUseLegacyVgpuPolicy(pGpu, pKernelMIGManager); 49 50 // 51 // Disabling scrub on free for SLI, waiting on the bug:1915380 52 // Bug: 2997744, skipping the top level scrubber since partitions are not created. 53 // 54 if (!IsSLIEnabled(pGpu) && 55 memmgrIsScrubOnFreeEnabled(pMemoryManager) && 56 memmgrIsPmaInitialized(pMemoryManager) && 57 !(bIsMIGEnabled && IS_VIRTUAL(pGpu) && !bIsVgpuLegacyPolicy)) 58 { 59 NV_ASSERT_OK_OR_RETURN(scrubberConstruct(pGpu, pHeap)); 60 } 61 62 return NV_OK; 63 } 64 65 /*! 66 * Performs cleanup on resources that need to be freed before StateUnload routes 67 * are called 68 */ 69 NV_STATUS 70 memmgrScrubHandlePreSchedulingDisable_GP100 71 ( 72 OBJGPU *pGpu, 73 MemoryManager *pMemoryManager 74 ) 75 { 76 Heap *pHeap = GPU_GET_HEAP(pGpu); 77 OBJMEMSCRUB *pMemscrub = NULL; 78 NvBool bIsMIGEnabled = IS_MIG_ENABLED(pGpu); 79 NvBool bIsMIGInUse = IS_MIG_IN_USE(pGpu); 80 KernelMIGManager *pKernelMIGManager = GPU_GET_KERNEL_MIG_MANAGER(pGpu); 81 NvBool bIsVgpuLegacyPolicy = (pKernelMIGManager != NULL) && kmigmgrUseLegacyVgpuPolicy(pGpu, pKernelMIGManager); 82 83 if (!pHeap) 84 return NV_ERR_GENERIC; 85 86 // 87 // Top level scrubber was allocated with MIG disabled, it must be destroyed 88 // with MIG disabled as well 89 // 90 if (bIsMIGInUse && !(IS_VIRTUAL(pGpu) && bIsVgpuLegacyPolicy)) 91 return NV_WARN_MORE_PROCESSING_REQUIRED; 92 93 pMemscrub = pHeap->pmaObject.pScrubObj; 94 95 // Bug: 2997744, skipping the top level scrubber since GPU instances are not created. 96 if (!IsSLIEnabled(pGpu) && 97 memmgrIsScrubOnFreeEnabled(pMemoryManager) && 98 memmgrIsPmaInitialized(pMemoryManager) && 99 !(bIsMIGEnabled && IS_VIRTUAL(pGpu) && !bIsVgpuLegacyPolicy)) 100 { 101 scrubberDestruct(pGpu, pHeap, pMemscrub); 102 pHeap->pmaObject.pScrubObj = NULL; 103 } 104 105 return NV_OK; 106 } 107