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 #include "src/__support/macros/config.h" 15 16 namespace LIBC_NAMESPACE_DECL { 17 18 // This calls the associated function pointer on the RPC server with the given 19 // arguments. We expect that the pointer here is a valid pointer on the server. 20 LLVM_LIBC_FUNCTION(unsigned long long, rpc_host_call, 21 (void *fn, void *data, size_t size)) { 22 rpc::Client::Port port = rpc::client.open<RPC_HOST_CALL>(); 23 port.send_n(data, size); __anon8a305a380102(rpc::Buffer *buffer, uint32_t) 24 port.send([=](rpc::Buffer *buffer, uint32_t) { 25 buffer->data[0] = reinterpret_cast<uintptr_t>(fn); 26 }); 27 unsigned long long ret; __anon8a305a380202(rpc::Buffer *buffer, uint32_t) 28 port.recv([&](rpc::Buffer *buffer, uint32_t) { 29 ret = static_cast<unsigned long long>(buffer->data[0]); 30 }); 31 port.close(); 32 return ret; 33 } 34 35 } // namespace LIBC_NAMESPACE_DECL 36