| 1 | //===---------- GPU implementation of the external RPC call function ------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "src/gpu/rpc_host_call.h" |
| 10 | |
| 11 | #include "src/__support/GPU/utils.h" |
| 12 | #include "src/__support/RPC/rpc_client.h" |
| 13 | #include "src/__support/common.h" |
| 14 | |
| 15 | namespace LIBC_NAMESPACE { |
| 16 | |
| 17 | // This calls the associated function pointer on the RPC server with the given |
| 18 | // arguments. We expect that the pointer here is a valid pointer on the server. |
| 19 | LLVM_LIBC_FUNCTION(void, rpc_host_call, (void *fn, void *data, size_t size)) { |
| 20 | rpc::Client::Port port = rpc::client.open<RPC_HOST_CALL>(); |
| 21 | port.send_n(src: data, size); |
| 22 | port.send(fill: [=](rpc::Buffer *buffer) { |
| 23 | buffer->data[0] = reinterpret_cast<uintptr_t>(fn); |
| 24 | }); |
| 25 | port.recv(use: [](rpc::Buffer *) {}); |
| 26 | port.close(); |
| 27 | } |
| 28 | |
| 29 | } // namespace LIBC_NAMESPACE |
| 30 |