1 /*
2 * SPDX-FileCopyrightText: Copyright (c) 1993-2023 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 KERNEL_CE_PRIVATE_H
25 #define KERNEL_CE_PRIVATE_H
26
27 #include "gpu/gpu.h"
28 #include "gpu_mgr/gpu_mgr.h"
29 #include "kernel/gpu/mig_mgr/kernel_mig_manager.h"
30
31 #define CE_GET_LOWEST_AVAILABLE_IDX(x) \
32 (x == 0 || x == 0xFFFFFFFF) ? 0xFFFFFFFF : portUtilCountTrailingZeros32(x)
33
34 /*!
35 * @brief Obtain relative CE index.
36 *
37 * @param rmEngineType RM_ENGINE_TYPE_ for this CE, or partition-local engine type.
38 * @param ceIdx CE index in 0..GPU_MAX_CES-1
39 *
40 * @return NV_OK if the conversion is successful.
41 */
42 static NV_INLINE
ceIndexFromType(OBJGPU * pGpu,Device * pDevice,RM_ENGINE_TYPE rmEngineType,NvU32 * ceIdx)43 NV_STATUS ceIndexFromType(OBJGPU *pGpu, Device *pDevice, RM_ENGINE_TYPE rmEngineType, NvU32 *ceIdx)
44 {
45 NV_STATUS status = NV_OK;
46 RM_ENGINE_TYPE localRmEngType = rmEngineType;
47
48 *ceIdx = GPU_MAX_CES;
49
50 //
51 // If MIG is enabled, client passes a logical engineId w.r.t its own partition
52 // we need to convert this logical Id to a physical engine Id as we use it
53 // to set runlistId
54 //
55 if (IS_MIG_IN_USE(pGpu))
56 {
57 KernelMIGManager *pKernelMIGManager = GPU_GET_KERNEL_MIG_MANAGER(pGpu);
58 MIG_INSTANCE_REF ref;
59 NvBool bEnginePresent;
60
61 status = kmigmgrGetInstanceRefFromDevice(pGpu, pKernelMIGManager, pDevice, &ref);
62 if (status != NV_OK)
63 return status;
64
65 bEnginePresent = kmigmgrIsLocalEngineInInstance(pGpu, pKernelMIGManager, rmEngineType, ref);
66 if (!bEnginePresent)
67 return NV_ERR_INVALID_ARGUMENT;
68
69 status = kmigmgrGetLocalToGlobalEngineType(pGpu, pKernelMIGManager, ref, rmEngineType, &localRmEngType);
70 if (status != NV_OK)
71 return status;
72 }
73
74 if (!RM_ENGINE_TYPE_IS_COPY(localRmEngType))
75 {
76 return NV_ERR_INVALID_ARGUMENT;
77 }
78
79 *ceIdx = RM_ENGINE_TYPE_COPY_IDX(localRmEngType);
80 return status;
81 }
82
83 #endif // KERNEL_CE_PRIVATE_H
84