Pablo Tello | b7c308a | 2019-01-22 12:59:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #include "arm_compute/runtime/CL/CLHelpers.h" |
| 26 | |
| 27 | #include "arm_compute/core/CL/CLHelpers.h" |
| 28 | #include "arm_compute/core/Error.h" |
| 29 | |
| 30 | namespace |
| 31 | { |
| 32 | #if defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| 33 | void printf_callback(const char *buffer, unsigned int len, size_t complete, void *user_data) |
| 34 | { |
| 35 | printf("%.*s", len, buffer); |
| 36 | } |
| 37 | #endif /* defined(ARM_COMPUTE_ASSERTS_ENABLED) */ |
| 38 | |
| 39 | /** This initialises the properties vector with the configuration to be used when creating the opencl context |
| 40 | * |
| 41 | * @param[in] platform The opencl platform used to create the context |
| 42 | * @param[in] device The opencl device to be used to create the context |
| 43 | * @param[in] prop An array of properties to be initialised |
| 44 | * |
| 45 | * @note In debug builds, this function will enable cl_arm_printf if it's supported. |
| 46 | * |
| 47 | * @return A pointer to the context properties which can be used to create an opencl context |
| 48 | */ |
| 49 | |
| 50 | void initialise_context_properties(const cl::Platform &platform, const cl::Device &device, cl_context_properties prop[7]) |
| 51 | { |
| 52 | ARM_COMPUTE_UNUSED(device); |
| 53 | #if defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| 54 | // Query devices in the context for cl_arm_printf support |
| 55 | if(arm_compute::device_supports_extension(device, "cl_arm_printf")) |
| 56 | { |
| 57 | // Create a cl_context with a printf_callback and user specified buffer size. |
| 58 | cl_context_properties properties_printf[] = |
| 59 | { |
| 60 | CL_CONTEXT_PLATFORM, reinterpret_cast<cl_context_properties>(platform()), |
| 61 | // Enable a printf callback function for this context. |
| 62 | CL_PRINTF_CALLBACK_ARM, reinterpret_cast<cl_context_properties>(printf_callback), |
| 63 | // Request a minimum printf buffer size of 4MB for devices in the |
| 64 | // context that support this extension. |
| 65 | CL_PRINTF_BUFFERSIZE_ARM, 0x1000, |
| 66 | 0 |
| 67 | }; |
John Kesapides | 453ef52 | 2019-02-15 16:33:48 +0000 | [diff] [blame] | 68 | std::copy_n(properties_printf, 7, prop); |
Pablo Tello | b7c308a | 2019-01-22 12:59:26 +0000 | [diff] [blame] | 69 | } |
| 70 | else |
| 71 | #endif // defined(ARM_COMPUTE_ASSERTS_ENABLED) |
| 72 | { |
| 73 | cl_context_properties properties[] = |
| 74 | { |
| 75 | CL_CONTEXT_PLATFORM, reinterpret_cast<cl_context_properties>(platform()), |
| 76 | 0 |
| 77 | }; |
John Kesapides | 453ef52 | 2019-02-15 16:33:48 +0000 | [diff] [blame] | 78 | std::copy_n(properties, 3, prop); |
Pablo Tello | b7c308a | 2019-01-22 12:59:26 +0000 | [diff] [blame] | 79 | }; |
| 80 | } |
| 81 | } //namespace |
| 82 | |
| 83 | namespace arm_compute |
| 84 | { |
| 85 | std::tuple<cl::Context, cl::Device, cl_int> |
| 86 | create_opencl_context_and_device() |
| 87 | { |
| 88 | ARM_COMPUTE_ERROR_ON(!opencl_is_available()); |
| 89 | std::vector<cl::Platform> platforms; |
| 90 | cl::Platform::get(&platforms); |
| 91 | ARM_COMPUTE_ERROR_ON_MSG(platforms.size() == 0, "Couldn't find any OpenCL platform"); |
| 92 | cl::Platform p = platforms[0]; |
| 93 | cl::Device device; |
| 94 | std::vector<cl::Device> platform_devices; |
| 95 | p.getDevices(CL_DEVICE_TYPE_DEFAULT, &platform_devices); |
| 96 | ARM_COMPUTE_ERROR_ON_MSG(platform_devices.size() == 0, "Couldn't find any OpenCL device"); |
| 97 | device = platform_devices[0]; |
| 98 | cl_int err = CL_SUCCESS; |
| 99 | cl_context_properties properties[7] = { 0, 0, 0, 0, 0, 0, 0 }; |
| 100 | initialise_context_properties(p, device, properties); |
| 101 | cl::Context cl_context = cl::Context(device, properties, nullptr, nullptr, &err); |
| 102 | ARM_COMPUTE_ERROR_ON_MSG(err != CL_SUCCESS, "Failed to create OpenCL context"); |
| 103 | return std::make_tuple(cl_context, device, err); |
| 104 | } |
| 105 | } // namespace arm_compute |