| // |
| // Copyright 2021 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // CLPlatform.cpp: Implements the cl::Platform class. |
| |
| #include "libANGLE/CLPlatform.h" |
| |
| #include <cstdint> |
| #include <cstring> |
| |
| namespace cl |
| { |
| |
| namespace |
| { |
| bool IsDeviceTypeMatch(cl_device_type select, cl_device_type type) |
| { |
| // The type 'cl_device_type' is a bitfield, so masking out the selected bits indicates |
| // if a given type is a match. A custom device is an exception, which only matches |
| // if it was explicitely selected, as defined here: |
| // https://www.khronos.org/registry/OpenCL/specs/3.0-unified/html/OpenCL_API.html#clGetDeviceIDs |
| return type == CL_DEVICE_TYPE_CUSTOM ? select == CL_DEVICE_TYPE_CUSTOM : (type & select) != 0u; |
| } |
| } // namespace |
| |
| Platform::~Platform() |
| { |
| removeRef(); |
| } |
| |
| cl_int Platform::getInfo(PlatformInfo name, size_t valueSize, void *value, size_t *sizeRet) |
| { |
| const void *copyValue = nullptr; |
| size_t copySize = 0u; |
| |
| switch (name) |
| { |
| case PlatformInfo::Profile: |
| copyValue = mInfo.mProfile.c_str(); |
| copySize = mInfo.mProfile.length() + 1u; |
| break; |
| case PlatformInfo::Version: |
| copyValue = mInfo.mVersionStr.c_str(); |
| copySize = mInfo.mVersionStr.length() + 1u; |
| break; |
| case PlatformInfo::NumericVersion: |
| copyValue = &mInfo.mVersion; |
| copySize = sizeof(mInfo.mVersion); |
| break; |
| case PlatformInfo::Name: |
| copyValue = mInfo.mName.c_str(); |
| copySize = mInfo.mName.length() + 1u; |
| break; |
| case PlatformInfo::Vendor: |
| copyValue = kVendor; |
| copySize = sizeof(kVendor); |
| break; |
| case PlatformInfo::Extensions: |
| copyValue = mInfo.mExtensions.c_str(); |
| copySize = mInfo.mExtensions.length() + 1u; |
| break; |
| case PlatformInfo::ExtensionsWithVersion: |
| if (mInfo.mExtensionsWithVersion.empty()) |
| { |
| return CL_INVALID_VALUE; |
| } |
| copyValue = mInfo.mExtensionsWithVersion.data(); |
| copySize = mInfo.mExtensionsWithVersion.size() * |
| sizeof(decltype(mInfo.mExtensionsWithVersion)::value_type); |
| break; |
| case PlatformInfo::HostTimerResolution: |
| copyValue = &mInfo.mHostTimerRes; |
| copySize = sizeof(mInfo.mHostTimerRes); |
| break; |
| case PlatformInfo::IcdSuffix: |
| copyValue = kIcdSuffix; |
| copySize = sizeof(kIcdSuffix); |
| break; |
| default: |
| return CL_INVALID_VALUE; |
| } |
| |
| if (value != nullptr) |
| { |
| if (valueSize < copySize) |
| { |
| return CL_INVALID_VALUE; |
| } |
| if (copyValue != nullptr) |
| { |
| std::memcpy(value, copyValue, copySize); |
| } |
| } |
| if (sizeRet != nullptr) |
| { |
| *sizeRet = copySize; |
| } |
| return CL_SUCCESS; |
| } |
| |
| cl_int Platform::getDeviceIDs(cl_device_type deviceType, |
| cl_uint numEntries, |
| Device **devices, |
| cl_uint *numDevices) const |
| { |
| cl_uint found = 0u; |
| for (const Device::Ptr &device : mDevices) |
| { |
| cl_device_type type = 0u; |
| if (device->getInfoULong(DeviceInfo::Type, &type) == CL_SUCCESS && |
| IsDeviceTypeMatch(deviceType, type)) |
| { |
| if (devices != nullptr && found < numEntries) |
| { |
| devices[found] = device.get(); |
| } |
| ++found; |
| } |
| } |
| if (numDevices != nullptr) |
| { |
| *numDevices = found; |
| } |
| return found == 0u ? CL_DEVICE_NOT_FOUND : CL_SUCCESS; |
| } |
| |
| void Platform::CreatePlatform(const cl_icd_dispatch &dispatch, |
| rx::CLPlatformImpl::InitData &initData) |
| { |
| rx::CLDeviceImpl::InitList deviceInitList = initData.first->getDevices(); |
| if (!deviceInitList.empty()) |
| { |
| GetList().emplace_back(new Platform(dispatch, initData, std::move(deviceInitList))); |
| } |
| } |
| |
| Platform::Platform(const cl_icd_dispatch &dispatch, |
| rx::CLPlatformImpl::InitData &initData, |
| rx::CLDeviceImpl::InitList &&deviceInitList) |
| : _cl_platform_id(dispatch), |
| mImpl(std::move(initData.first)), |
| mInfo(std::move(initData.second)), |
| mDevices(Device::CreateDevices(*this, std::move(deviceInitList))) |
| { |
| ASSERT(isCompatible(this)); |
| } |
| |
| constexpr char Platform::kVendor[]; |
| constexpr char Platform::kIcdSuffix[]; |
| |
| } // namespace cl |