From 800d949bb315349a116a980e99d0f36645ffefd3 Mon Sep 17 00:00:00 2001 From: Callum Fare Date: Tue, 22 Apr 2025 19:27:50 +0100 Subject: [Offload] Implement the remaining initial Offload API (#122106) Implement the complete initial version of the Offload API, to the extent that is usable for simple offloading programs. Tested with a basic SYCL program. As far as possible, these are simple wrappers over existing functionality in the plugins. * Allocating and freeing memory (host, device, shared). * Creating a program * Creating a queue (wrapper over asynchronous stream resource) * Enqueuing memcpy operations * Enqueuing kernel executions * Waiting on (optional) output events from the enqueue operations * Waiting on a queue to finish Objects created with the API have reference counting semantics to handle their lifetime. They are created with an initial reference count of 1, which can be incremented and decremented with retain and release functions. They are freed when their reference count reaches 0. Platform and device objects are not reference counted, as they are expected to persist as long as the library is in use, and it's not meaningful for users to create or destroy them. Tests have been added to `offload.unittests`, including device code for testing program and kernel related functionality. The API should still be considered unstable and it's very likely we will need to change the existing entry points. --- .../OffloadAPI/program/olCreateProgram.cpp | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 offload/unittests/OffloadAPI/program/olCreateProgram.cpp (limited to 'offload/unittests/OffloadAPI/program/olCreateProgram.cpp') diff --git a/offload/unittests/OffloadAPI/program/olCreateProgram.cpp b/offload/unittests/OffloadAPI/program/olCreateProgram.cpp new file mode 100644 index 000000000000..c586c0459620 --- /dev/null +++ b/offload/unittests/OffloadAPI/program/olCreateProgram.cpp @@ -0,0 +1,27 @@ +//===------- Offload API tests - olCreateProgram --------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "../common/Fixtures.hpp" +#include +#include + +using olCreateProgramTest = OffloadDeviceTest; + +TEST_F(olCreateProgramTest, Success) { + + std::unique_ptr DeviceBin; + ASSERT_TRUE(TestEnvironment::loadDeviceBinary("foo", Device, DeviceBin)); + ASSERT_GE(DeviceBin->getBufferSize(), 0lu); + + ol_program_handle_t Program; + ASSERT_SUCCESS(olCreateProgram(Device, DeviceBin->getBufferStart(), + DeviceBin->getBufferSize(), &Program)); + ASSERT_NE(Program, nullptr); + + ASSERT_SUCCESS(olDestroyProgram(Program)); +} -- cgit v1.2.3