| /* |
| * Copyright (c) 2019-2020 Arm Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include "arm_compute/runtime/CL/CLHelpers.h" |
| |
| #include "arm_compute/core/CL/CLHelpers.h" |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Validate.h" |
| #include "arm_compute/runtime/CL/CLRuntimeContext.h" |
| |
| namespace |
| { |
| #if defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| void printf_callback(const char *buffer, unsigned int len, size_t complete, void *user_data) |
| { |
| ARM_COMPUTE_UNUSED(complete, user_data); |
| printf("%.*s", len, buffer); |
| } |
| #endif /* defined(ARM_COMPUTE_ASSERTS_ENABLED) */ |
| |
| /** This initialises the properties vector with the configuration to be used when creating the opencl context |
| * |
| * @param[in] platform The opencl platform used to create the context |
| * @param[in] device The opencl device to be used to create the context |
| * @param[in] prop An array of properties to be initialised |
| * |
| * @note In debug builds, this function will enable cl_arm_printf if it's supported. |
| * |
| * @return A pointer to the context properties which can be used to create an opencl context |
| */ |
| |
| void initialise_context_properties(const cl::Platform &platform, const cl::Device &device, std::array<cl_context_properties, 7> &prop) |
| { |
| ARM_COMPUTE_UNUSED(device); |
| #if defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| // Query devices in the context for cl_arm_printf support |
| if(arm_compute::device_supports_extension(device, "cl_arm_printf")) |
| { |
| // Create a cl_context with a printf_callback and user specified buffer size. |
| std::array<cl_context_properties, 7> properties_printf = |
| { |
| CL_CONTEXT_PLATFORM, reinterpret_cast<cl_context_properties>(platform()), |
| // Enable a printf callback function for this context. |
| CL_PRINTF_CALLBACK_ARM, reinterpret_cast<cl_context_properties>(printf_callback), |
| // Request a minimum printf buffer size of 4MB for devices in the |
| // context that support this extension. |
| CL_PRINTF_BUFFERSIZE_ARM, 0x1000, |
| 0 |
| }; |
| prop = properties_printf; |
| } |
| else |
| #endif // defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| { |
| std::array<cl_context_properties, 3> properties = |
| { |
| CL_CONTEXT_PLATFORM, reinterpret_cast<cl_context_properties>(platform()), |
| 0 |
| }; |
| std::copy(properties.begin(), properties.end(), prop.begin()); |
| }; |
| } |
| } //namespace |
| |
| namespace arm_compute |
| { |
| std::tuple<cl::Context, cl::Device, cl_int> |
| create_opencl_context_and_device() |
| { |
| ARM_COMPUTE_ERROR_ON(!opencl_is_available()); |
| std::vector<cl::Platform> platforms; |
| cl::Platform::get(&platforms); |
| ARM_COMPUTE_ERROR_ON_MSG(platforms.size() == 0, "Couldn't find any OpenCL platform"); |
| cl::Platform p = platforms[0]; |
| cl::Device device; |
| std::vector<cl::Device> platform_devices; |
| p.getDevices(CL_DEVICE_TYPE_DEFAULT, &platform_devices); |
| ARM_COMPUTE_ERROR_ON_MSG(platform_devices.size() == 0, "Couldn't find any OpenCL device"); |
| device = platform_devices[0]; |
| cl_int err = CL_SUCCESS; |
| std::array<cl_context_properties, 7> properties = { 0, 0, 0, 0, 0, 0, 0 }; |
| initialise_context_properties(p, device, properties); |
| cl::Context cl_context = cl::Context(device, properties.data(), nullptr, nullptr, &err); |
| ARM_COMPUTE_ERROR_ON_MSG(err != CL_SUCCESS, "Failed to create OpenCL context"); |
| return std::make_tuple(cl_context, device, err); |
| } |
| |
| void schedule_kernel_on_ctx(CLRuntimeContext *ctx, ICLKernel *kernel, bool flush) |
| { |
| ARM_COMPUTE_ERROR_ON_NULLPTR(kernel); |
| if(ctx) |
| { |
| ARM_COMPUTE_ERROR_ON(ctx->gpu_scheduler() == nullptr); |
| ctx->gpu_scheduler()->enqueue(*kernel, flush); |
| } |
| else |
| { |
| CLScheduler::get().enqueue(*kernel, flush); |
| } |
| } |
| |
| } // namespace arm_compute |