1 /*
2  * SPDX-FileCopyrightText: Copyright (c) 2022-2023 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 #ifndef GPU_SHARED_DATA_MAP_H
25 #define GPU_SHARED_DATA_MAP_H
26 
27 #include "core/core.h"
28 #include "gpu/mem_mgr/mem_desc.h"
29 #include "class/cl00de.h"
30 
31 #include "tmr.h"
32 
33 // ****************************************************************************
34 //                          Type definitions
35 // ****************************************************************************
36 typedef struct RusdQueryCache RUSD_QUERY_CACHE;
37 
38 typedef struct GpuSharedDataMap {
39     MEMORY_DESCRIPTOR *pMemDesc;
40     NvP64 pMapBuffer;
41     NvP64 pMapBufferPriv;
42     NvU64 lastPolledDataMask;
43     NvU32 processId;
44 
45     TMR_EVENT *pRusdRefreshTmrEvent;
46 
47     NV00DE_SHARED_DATA data;
48 
49     // Private data to assist metrics query
50     RUSD_QUERY_CACHE *pRusdQueryCache;
51     NvU8 curGroup;
52     NvBool bWorkItemPending;
53 } GpuSharedDataMap;
54 
55 /**
56  * Start data write, returns data struct to write into
57  *
58  * After updating data in the returned NV00DE_SHARED_DATA struct,
59  * call gpushareddataWriteFinish to push the new data into the user mapping
60  */
61 NV00DE_SHARED_DATA * gpushareddataWriteStart(OBJGPU *pGpu);
62 
63 // Finish data write, pushes data cached by above into mapped data
64 void gpushareddataWriteFinish(OBJGPU *pGpu);
65 
66 // Unmap and free memory in GpuSharedDataMap
67 void gpushareddataDestroy(OBJGPU *pGpu);
68 
69 #endif /* GPU_SHARED_DATA_MAP_H */
70 
71