| 1 | //===-- GPU memory allocator implementation ---------------------*- C++ -*-===// |
|---|---|
| 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 "allocator.h" |
| 10 | |
| 11 | #include "src/__support/GPU/utils.h" |
| 12 | #include "src/__support/RPC/rpc_client.h" |
| 13 | |
| 14 | namespace LIBC_NAMESPACE { |
| 15 | namespace { |
| 16 | |
| 17 | void *rpc_allocate(uint64_t size) { |
| 18 | void *ptr = nullptr; |
| 19 | rpc::Client::Port port = rpc::client.open<RPC_MALLOC>(); |
| 20 | port.send_and_recv(fill: [=](rpc::Buffer *buffer) { buffer->data[0] = size; }, |
| 21 | use: [&](rpc::Buffer *buffer) { |
| 22 | ptr = reinterpret_cast<void *>(buffer->data[0]); |
| 23 | }); |
| 24 | port.close(); |
| 25 | return ptr; |
| 26 | } |
| 27 | |
| 28 | void rpc_free(void *ptr) { |
| 29 | rpc::Client::Port port = rpc::client.open<RPC_FREE>(); |
| 30 | port.send(fill: [=](rpc::Buffer *buffer) { |
| 31 | buffer->data[0] = reinterpret_cast<uintptr_t>(ptr); |
| 32 | }); |
| 33 | port.close(); |
| 34 | } |
| 35 | |
| 36 | } // namespace |
| 37 | |
| 38 | namespace gpu { |
| 39 | |
| 40 | void *allocate(uint64_t size) { return rpc_allocate(size); } |
| 41 | |
| 42 | void deallocate(void *ptr) { rpc_free(ptr); } |
| 43 | |
| 44 | } // namespace gpu |
| 45 | } // namespace LIBC_NAMESPACE |
| 46 |