libc/test/integration/startup/gpu/rpc_stream_test.cpp

   1 //===-- Loader test to check the RPC streaming interface with the loader --===//
   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 "include/llvm-libc-types/test_rpc_opcodes_t.h"
  10 #include "src/__support/GPU/utils.h"
  11 #include "src/__support/RPC/rpc_client.h"
  12 #include "src/__support/integer_to_string.h"
  13 #include "src/string/memory_utils/inline_memcmp.h"
  14 #include "src/string/memory_utils/inline_memcpy.h"
  15 #include "src/string/string_utils.h"
  16 #include "test/IntegrationTest/test.h"
  17
  18 extern "C" void *malloc(uint64_t);
  19 extern "C" void free(void *);
  20
  21 using namespace LIBC_NAMESPACE;
  22
  23 static void test_stream() {
  24   static const char str[] =
  25       "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy"
  26       "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy"
  27       "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy"
  28       "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy"
  29       "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy";
  30   uint64_t send_size = sizeof(str);
  31   void *send_ptr = malloc(send_size);
  32   void *recv_ptr;
  33   uint64_t recv_size;
  34
  35   inline_memcpy(send_ptr, str, send_size);
  36   ASSERT_TRUE(inline_memcmp(send_ptr, str, send_size) == 0 && "Data mismatch");
  37   rpc::Client::Port port = rpc::client.open<RPC_TEST_STREAM>();
  38   port.send_n(send_ptr, send_size);
  39   port.recv_n(&recv_ptr, &recv_size,
  40               [](uint64_t size) { return malloc(size); });
  41   port.close();
  42   ASSERT_TRUE(inline_memcmp(recv_ptr, str, recv_size) == 0 && "Data mismatch");
  43   ASSERT_TRUE(recv_size == send_size && "Data size mismatch");
  44
  45   free(send_ptr);
  46   free(recv_ptr);
  47 }
  48
  49 static void test_divergent() {
  50   static const uint8_t data[] = {
  51       0,   1,   2,   3,   4,   5,   6,   7,   8,   9,   10,  11,  12,  13,  14,
  52       15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
  53       30,  31,  32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,
  54       45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,
  55       60,  61,  62,  63,  64,  65,  66,  67,  68,  69,  70,  71,  72,  73,  74,
  56       75,  76,  77,  78,  79,  80,  81,  82,  83,  84,  85,  86,  87,  88,  89,
  57       90,  91,  92,  93,  94,  95,  96,  97,  98,  99,  100, 101, 102, 103, 104,
  58       105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
  59       120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
  60       135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
  61       150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
  62       165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
  63       180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194,
  64       195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
  65       210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224,
  66       225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
  67       240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254,
  68       255,
  69   };
  70
  71   uint8_t buffer[128] = {0};
  72   uint64_t offset =
  73       (gpu::get_thread_id() + gpu::get_num_threads() * gpu::get_block_id()) %
  74       128;
  75   void *recv_ptr;
  76   uint64_t recv_size;
  77   inline_memcpy(buffer, &data[offset], offset);
  78   ASSERT_TRUE(inline_memcmp(buffer, &data[offset], offset) == 0 &&
  79               "Data mismatch");
  80   rpc::Client::Port port = rpc::client.open<RPC_TEST_STREAM>();
  81   port.send_n(buffer, offset);
  82   inline_memset(buffer, offset, 0);
  83   port.recv_n(&recv_ptr, &recv_size, [&](uint64_t) { return buffer; });
  84   port.close();
  85
  86   ASSERT_TRUE(inline_memcmp(recv_ptr, &data[offset], recv_size) == 0 &&
  87               "Data mismatch");
  88   ASSERT_TRUE(recv_size == offset && "Data size mismatch");
  89 }
  90
  91 TEST_MAIN(int argc, char **argv, char **envp) {
  92   test_stream();
  93   test_divergent();
  94
  95   return 0;
  96 }