rocm-systems/runtime/hsa-amd-aqlprofile/test/ctrl/test_pmgr.cpp

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#include <atomic>
#include "test_assert.h"

#include "test_pmgr.h"

bool TestPMgr::addPacketGfx9(const packet_t* packet) {
  packet_t aql_packet = *packet;

  // Compute the write index of queue and copy Aql packet into it
  uint64_t que_idx = hsa_queue_load_write_index_relaxed(getQueue());
  const uint32_t mask = getQueue()->size - 1;

  // Disable packet so that submission to HW is complete
  const auto header = HSA_PACKET_TYPE_VENDOR_SPECIFIC << HSA_PACKET_HEADER_TYPE;
  aql_packet.header &= (~((1 << HSA_PACKET_HEADER_WIDTH_TYPE) - 1)) << HSA_PACKET_HEADER_TYPE;
  aql_packet.header |= HSA_PACKET_TYPE_INVALID << HSA_PACKET_HEADER_TYPE;

  // Copy Aql packet into queue buffer
  ((packet_t*)(getQueue()->base_address))[que_idx & mask] = aql_packet;

  // After AQL packet is fully copied into queue buffer
  // update packet header from invalid state to valid state
  std::atomic_thread_fence(std::memory_order_release);
  ((packet_t*)(getQueue()->base_address))[que_idx & mask].header = header;

  // Increment the write index and ring the doorbell to dispatch the kernel.
  hsa_queue_store_write_index_relaxed(getQueue(), (que_idx + 1));
  hsa_signal_store_relaxed(getQueue()->doorbell_signal, que_idx);

  return true;
}

bool TestPMgr::addPacketGfx8(const packet_t* packet) {
  // Create legacy devices PM4 data
  const hsa_ext_amd_aql_pm4_packet_t* aql_packet = (const hsa_ext_amd_aql_pm4_packet_t*)packet;
  slot_pm4_s data;
  api.hsa_ven_amd_aqlprofile_legacy_get_pm4(aql_packet, reinterpret_cast<void*>(data.words));

  // Compute the write index of queue and copy Aql packet into it
  uint64_t que_idx = hsa_queue_load_write_index_relaxed(getQueue());
  const uint32_t mask = getQueue()->size - 1;

  // Copy Aql packet into queue buffer
  packet_t* ptr = ((packet_t*)(getQueue()->base_address)) + (que_idx & mask);
  slot_pm4_t* slot_pm4 = (slot_pm4_t*)ptr;
  slot_pm4->store(data, std::memory_order_relaxed);

  // Increment the write index and ring the doorbell to dispatch the kernel.
  hsa_queue_store_write_index_relaxed(getQueue(), (que_idx + SLOT_PM4_SIZE_AQLP));
  hsa_signal_store_relaxed(getQueue()->doorbell_signal, que_idx + SLOT_PM4_SIZE_AQLP - 1);

  return true;
}

bool TestPMgr::addPacket(const packet_t* packet) {
  const char* agent_name = getAgentInfo()->name;
  return (strncmp(agent_name, "gfx8", 4) == 0) ? addPacketGfx8(packet) : addPacketGfx9(packet);
}

bool TestPMgr::run() {
  // Build Aql Pkts
  const bool active = buildPackets();
  if (active) {
    // Submit Pre-Dispatch Aql packet
    addPacket(&prePacket);
  }

  testAql()->run();

  if (active) {
    // Set post packet completion signal
    postPacket.completion_signal = postSignal;

    // Submit Post-Dispatch Aql packet
    addPacket(&postPacket);

    // Wait for Post-Dispatch packet to complete
    hsa_signal_wait_acquire(postSignal, HSA_SIGNAL_CONDITION_LT, 1, (uint64_t)-1,
                            HSA_WAIT_STATE_BLOCKED);

    // Dumping profiling data
    dumpData();
  }

  return true;
}

bool TestPMgr::initialize(int argc, char** argv) {
  TestAql::initialize(argc, argv);
  hsa_status_t status = hsa_signal_create(1, 0, NULL, &postSignal);
  test_assert(status == HSA_STATUS_SUCCESS);
  return (status == HSA_STATUS_SUCCESS);
}

TestPMgr::TestPMgr(TestAql* t) : TestAql(t) {
  dummySignal.handle = 0;
  postSignal = dummySignal;

  hsa_status_t status = hsa_init();
  test_assert(status == HSA_STATUS_SUCCESS);
  status = hsa_system_get_extension_table(HSA_EXTENSION_AMD_AQLPROFILE, 1, 0, &api);
  test_assert(status == HSA_STATUS_SUCCESS);
}