| 1 | //===-- Loader test to check the RPC interface with the loader ------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "include/llvm-libc-types/test_rpc_opcodes_t.h" |
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| 10 | #include "src/__support/GPU/utils.h" |
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| 11 | #include "src/__support/RPC/rpc_client.h" |
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| 12 | #include "test/IntegrationTest/test.h" |
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| 13 | |
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| 14 | using namespace LIBC_NAMESPACE; |
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| 15 | |
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| 16 | static void test_add_simple() { |
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| 17 | uint64_t num_additions = |
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| 18 | 10 + 10 * gpu::get_thread_id() + 10 * gpu::get_block_id(); |
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| 19 | uint64_t cnt = 0; |
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| 20 | for (uint32_t i = 0; i < num_additions; ++i) { |
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| 21 | LIBC_NAMESPACE::rpc::Client::Port port = |
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| 22 | LIBC_NAMESPACE::rpc::client.open<RPC_TEST_INCREMENT>(); |
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| 23 | port.send_and_recv( |
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| 24 | [=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
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| 25 | reinterpret_cast<uint64_t *>(buffer->data)[0] = cnt; |
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| 26 | }, |
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| 27 | [&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
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| 28 | cnt = reinterpret_cast<uint64_t *>(buffer->data)[0]; |
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| 29 | }); |
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| 30 | port.close(); |
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| 31 | } |
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| 32 | ASSERT_TRUE(cnt == num_additions && "Incorrect sum" ); |
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| 33 | } |
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| 34 | |
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| 35 | // Test to ensure that the RPC mechanism doesn't hang on divergence. |
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| 36 | static void test_noop(uint8_t data) { |
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| 37 | LIBC_NAMESPACE::rpc::Client::Port port = |
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| 38 | LIBC_NAMESPACE::rpc::client.open<LIBC_NOOP>(); |
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| 39 | port.send([=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
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| 40 | buffer->data[0] = data; |
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| 41 | }); |
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| 42 | port.close(); |
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| 43 | } |
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| 44 | |
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| 45 | TEST_MAIN(int argc, char **argv, char **envp) { |
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| 46 | test_add_simple(); |
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| 47 | |
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| 48 | if (gpu::get_thread_id() % 2) |
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| 49 | test_noop(data: 1); |
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| 50 | else |
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| 51 | test_noop(data: 2); |
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| 52 | |
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| 53 | return 0; |
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| 54 | } |
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| 55 | |
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