800d949bb3
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.
35 lines
1.4 KiB
TableGen
35 lines
1.4 KiB
TableGen
//===-- Program.td - Program definitions for Offload -------*- tablegen -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains Offload API definitions related to the program handle
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//
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//===----------------------------------------------------------------------===//
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def : Function {
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let name = "olCreateProgram";
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let desc = "Create a program for the device from the binary image pointed to by `ProgData`.";
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let details = [];
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let params = [
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Param<"ol_device_handle_t", "Device", "handle of the device", PARAM_IN>,
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Param<"const void*", "ProgData", "pointer to the program binary data", PARAM_IN>,
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Param<"size_t", "ProgDataSize", "size of the program binary in bytes", PARAM_IN>,
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Param<"ol_program_handle_t*", "Program", "output pointer for the created program", PARAM_OUT>
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];
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let returns = [];
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}
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def : Function {
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let name = "olDestroyProgram";
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let desc = "Destroy the program and free all underlying resources.";
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let details = [];
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let params = [
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Param<"ol_program_handle_t", "Program", "handle of the program", PARAM_IN>
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];
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let returns = [];
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}
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