mirror-llvm-project/libsycl/include/sycl/__impl/backend.hpp
Kseniya Tikhomirova 4f7c733293
[SYCL] Add platform enumeration and info query using liboffload (#166927)
This is part of the SYCL support upstreaming effort. The relevant RFCs
can be found here:


https://discourse.llvm.org/t/rfc-add-full-support-for-the-sycl-programming-model/74080
https://discourse.llvm.org/t/rfc-sycl-runtime-upstreaming/74479

The SYCL runtime is device-agnostic and uses liboffload for offloading
to GPU. This commit adds a dependency on liboffload, implementation of
platform::get_platforms, platform::get_backend and platform::get_info
methods, initial implementation of sycl-ls tool for manual testing of
added functionality.

Plan for next PR:

device/context impl, rest of platform
test infrastructure (depends on L0 liboffload plugin CI, our effort is
joined) ABI tests

---------

Signed-off-by: Tikhomirova, Kseniya <kseniya.tikhomirova@intel.com>
2026-01-20 07:41:51 -08:00

50 lines
1.5 KiB
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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file contains the declaration of the SYCL enum class backend that is
/// implementation-defined and is populated with a unique identifier for each
/// SYCL backend that the SYCL implementation can support.
///
//===----------------------------------------------------------------------===//
#ifndef _LIBSYCL___IMPL_BACKEND_HPP
#define _LIBSYCL___IMPL_BACKEND_HPP
#include <sycl/__impl/detail/config.hpp>
#include <string_view>
#include <type_traits>
_LIBSYCL_BEGIN_NAMESPACE_SYCL
// SYCL 2020 4.1. Backends.
enum class backend : unsigned char {
opencl = 0,
level_zero,
cuda,
hip,
};
namespace detail {
template <typename T> struct is_backend_info_desc : std::false_type {};
} // namespace detail
// SYCL 2020 4.5.1.1. Type traits backend_traits.
template <backend Backend> class backend_traits;
template <backend Backend, typename SyclType>
using backend_input_t =
typename backend_traits<Backend>::template input_type<SyclType>;
template <backend Backend, typename SyclType>
using backend_return_t =
typename backend_traits<Backend>::template return_type<SyclType>;
_LIBSYCL_END_NAMESPACE_SYCL
#endif // _LIBSYCL___IMPL_BACKEND_HPP