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| 1 | +/* |
| 2 | + * Copyright (c) 2017-2019 The Khronos Group Inc. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + * |
| 16 | + * OpenCL is a trademark of Apple Inc. used under license by Khronos. |
| 17 | + */ |
| 18 | + |
| 19 | +#include "icd.h" |
| 20 | +#include "icd_windows_dxgk.h" |
| 21 | + |
| 22 | +#if defined(OPENCL_ICD_LOADER_REQUIRE_WDK) |
| 23 | +#include <windows.h> |
| 24 | + |
| 25 | +#ifndef NTSTATUS |
| 26 | +typedef LONG NTSTATUS; |
| 27 | +#define STATUS_SUCCESS ((NTSTATUS)0x00000000L) |
| 28 | +#define STATUS_BUFFER_TOO_SMALL ((NTSTATUS)0xC0000023) |
| 29 | +#define NT_SUCCESS(Status) (((NTSTATUS)(Status)) >= 0) |
| 30 | +#endif |
| 31 | + |
| 32 | +#include <d3dkmthk.h> |
| 33 | +#endif |
| 34 | + |
| 35 | +bool khrIcdOsVendorsEnumerateDXGK(void) |
| 36 | +{ |
| 37 | + bool ret = false; |
| 38 | +#if defined(OPENCL_ICD_LOADER_REQUIRE_WDK) |
| 39 | +#if defined(DXGKDDI_INTERFACE_VERSION_WDDM2_4) && (DXGKDDI_INTERFACE_VERSION >= DXGKDDI_INTERFACE_VERSION_WDDM2_4) |
| 40 | + { |
| 41 | + D3DKMT_ADAPTERINFO* pAdapterInfo = NULL; |
| 42 | + D3DKMT_ENUMADAPTERS2 EnumAdapters; |
| 43 | + NTSTATUS Status = STATUS_SUCCESS; |
| 44 | + |
| 45 | + // Get handle to GDI Runtime |
| 46 | + HMODULE h = LoadLibrary("gdi32.dll"); |
| 47 | + KHR_ICD_ASSERT(h != NULL); |
| 48 | + |
| 49 | + char cszLibraryName[MAX_PATH] = { 0 }; |
| 50 | + PFND3DKMT_ENUMADAPTERS2 pEnumAdapters2 = (PFND3DKMT_ENUMADAPTERS2)GetProcAddress((HMODULE)h, "D3DKMTEnumAdapters2"); |
| 51 | + if (!pEnumAdapters2) |
| 52 | + { |
| 53 | + KHR_ICD_TRACE("GetProcAddress failed for D3DKMT_ENUMADAPTERS2\n"); |
| 54 | + goto out; |
| 55 | + } |
| 56 | + while (1) |
| 57 | + { |
| 58 | + EnumAdapters.NumAdapters = 0; |
| 59 | + EnumAdapters.pAdapters = NULL; |
| 60 | + Status = pEnumAdapters2(&EnumAdapters); |
| 61 | + if (Status == STATUS_BUFFER_TOO_SMALL) |
| 62 | + { |
| 63 | + // Number of Adapters increased between calls, retry; |
| 64 | + continue; |
| 65 | + } |
| 66 | + else if (!NT_SUCCESS(Status)) |
| 67 | + { |
| 68 | + KHR_ICD_TRACE("D3DKMT_ENUMADAPTERS2 status != SUCCESS\n"); |
| 69 | + goto out; |
| 70 | + } |
| 71 | + break; |
| 72 | + } |
| 73 | + pAdapterInfo = (D3DKMT_ADAPTERINFO*)malloc(sizeof(D3DKMT_ADAPTERINFO)*(EnumAdapters.NumAdapters)); |
| 74 | + if (pAdapterInfo == NULL) |
| 75 | + { |
| 76 | + KHR_ICD_TRACE("Allocation failure for AdapterInfo buffer\n"); |
| 77 | + goto out; |
| 78 | + } |
| 79 | + EnumAdapters.pAdapters = pAdapterInfo; |
| 80 | + Status = pEnumAdapters2(&EnumAdapters); |
| 81 | + if (!NT_SUCCESS(Status)) |
| 82 | + { |
| 83 | + KHR_ICD_TRACE("D3DKMT_ENUMADAPTERS2 status != SUCCESS\n"); |
| 84 | + goto out; |
| 85 | + } |
| 86 | + for (UINT AdapterIndex = 0; AdapterIndex < EnumAdapters.NumAdapters; AdapterIndex++) |
| 87 | + { |
| 88 | + D3DDDI_QUERYREGISTRY_INFO QueryArgs = {0}; |
| 89 | + D3DDDI_QUERYREGISTRY_INFO* pQueryArgs = &QueryArgs; |
| 90 | + D3DDDI_QUERYREGISTRY_INFO* pQueryBuffer = NULL; |
| 91 | + QueryArgs.QueryType = D3DDDI_QUERYREGISTRY_ADAPTERKEY; |
| 92 | + QueryArgs.QueryFlags.TranslatePath = TRUE; |
| 93 | + QueryArgs.ValueType = REG_SZ; |
| 94 | +#ifdef _WIN64 |
| 95 | + wcscpy_s(QueryArgs.ValueName, ARRAYSIZE(L"OpenCLDriverName"), L"OpenCLDriverName"); |
| 96 | +#else |
| 97 | + // There is no WOW prefix for 32bit Windows hence make a specific check |
| 98 | + BOOL is_wow64; |
| 99 | + if (IsWow64Process(GetCurrentProcess(), &is_wow64) && is_wow64) |
| 100 | + { |
| 101 | + wcscpy_s(QueryArgs.ValueName, ARRAYSIZE(L"OpenCLDriverNameWow"), L"OpenCLDriverNameWow"); |
| 102 | + } |
| 103 | + else |
| 104 | + { |
| 105 | + wcscpy_s(QueryArgs.ValueName, ARRAYSIZE(L"OpenCLDriverName"), L"OpenCLDriverName"); |
| 106 | + } |
| 107 | +#endif |
| 108 | + D3DKMT_QUERYADAPTERINFO QueryAdapterInfo = {0}; |
| 109 | + QueryAdapterInfo.hAdapter = pAdapterInfo[AdapterIndex].hAdapter; |
| 110 | + QueryAdapterInfo.Type = KMTQAITYPE_QUERYREGISTRY; |
| 111 | + QueryAdapterInfo.pPrivateDriverData = &QueryArgs; |
| 112 | + QueryAdapterInfo.PrivateDriverDataSize = sizeof(QueryArgs); |
| 113 | + Status = D3DKMTQueryAdapterInfo(&QueryAdapterInfo); |
| 114 | + if (!NT_SUCCESS(Status)) |
| 115 | + { |
| 116 | + KHR_ICD_TRACE("D3DKMT_QUERYADAPTERINFO status != SUCCESS\n"); |
| 117 | + goto out; |
| 118 | + } |
| 119 | + if (NT_SUCCESS(Status) && pQueryArgs->Status == D3DDDI_QUERYREGISTRY_STATUS_BUFFER_OVERFLOW) |
| 120 | + { |
| 121 | + ULONG QueryBufferSize = sizeof(D3DDDI_QUERYREGISTRY_INFO) + QueryArgs.OutputValueSize; |
| 122 | + pQueryBuffer = (D3DDDI_QUERYREGISTRY_INFO*)malloc(QueryBufferSize); |
| 123 | + memcpy(pQueryBuffer, &QueryArgs, sizeof(D3DDDI_QUERYREGISTRY_INFO)); |
| 124 | + QueryAdapterInfo.pPrivateDriverData = pQueryBuffer; |
| 125 | + QueryAdapterInfo.PrivateDriverDataSize = QueryBufferSize; |
| 126 | + Status = D3DKMTQueryAdapterInfo(&QueryAdapterInfo); |
| 127 | + pQueryArgs = pQueryBuffer; |
| 128 | + } |
| 129 | + if (NT_SUCCESS(Status) && pQueryArgs->Status == D3DDDI_QUERYREGISTRY_STATUS_SUCCESS) |
| 130 | + { |
| 131 | + wchar_t* pWchar = pQueryArgs->OutputString; |
| 132 | + memset(cszLibraryName, 0, sizeof(cszLibraryName)); |
| 133 | + { |
| 134 | + size_t len = wcstombs(cszLibraryName, pWchar, sizeof(cszLibraryName)); |
| 135 | + KHR_ICD_ASSERT(len == (sizeof(cszLibraryName) - 1)); |
| 136 | + khrIcdVendorAdd(cszLibraryName); |
| 137 | + } |
| 138 | + } |
| 139 | + else if (Status == STATUS_INVALID_PARAMETER && pQueryArgs->Status == D3DDDI_QUERYREGISTRY_STATUS_FAIL) |
| 140 | + { |
| 141 | + free(pQueryBuffer); |
| 142 | + goto out; |
| 143 | + } |
| 144 | + free(pQueryBuffer); |
| 145 | + } |
| 146 | + ret = true; |
| 147 | +out: |
| 148 | + free(pAdapterInfo); |
| 149 | + FreeLibrary(h); |
| 150 | + } |
| 151 | +#endif |
| 152 | +#endif |
| 153 | + return ret; |
| 154 | +} |
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