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[Hexagon] Pass stack size to simulator #11046

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Merged
merged 2 commits into from
Apr 19, 2022
Merged

[Hexagon] Pass stack size to simulator #11046

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cd095d1
[Hexagon] Pass stack size to simulator
Apr 18, 2022
6cbfc62
Merge branch 'main' into simulator-stack-size
Apr 19, 2022
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2 changes: 1 addition & 1 deletion python/tvm/contrib/hexagon/session.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ def __init__(
launcher: "HexagonLauncherRPC",
remote_kw: dict,
session_name: str = "hexagon-rpc",
remote_stack_size_bytes: int = 128 * 1024,
remote_stack_size_bytes: int = 256 * 1024, # Min size for main thread in QuRT/sim
rpc_receive_buffer_size_bytes: int = 2 * 1024 * 1024,
):
self._launcher = launcher
Expand Down
12 changes: 7 additions & 5 deletions src/runtime/hexagon/rpc/simulator/session.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,7 @@ MaybeRange<T> to_range(const MaybeString& str) {

class SimulatorRPCChannel final : public RPCChannel {
public:
SimulatorRPCChannel(std::string args);
SimulatorRPCChannel(int stack_size, std::string args);
~SimulatorRPCChannel() final;
size_t Send(const void* data, size_t size) final;
size_t Recv(void* data, size_t size) final;
Expand Down Expand Up @@ -520,7 +520,7 @@ detail::Optional<HEXAPI_Cpu> SimulatorRPCChannel::GetCPU(const detail::MaybeStri
.Default(none);
}

SimulatorRPCChannel::SimulatorRPCChannel(std::string args) {
SimulatorRPCChannel::SimulatorRPCChannel(int stack_size, std::string args) {
const auto* api_v2 = tvm::runtime::Registry::Get("device_api.hexagon.v2");
ICHECK(api_v2 != nullptr);
tvm::runtime::Registry::Register("device_api.hexagon", true).set_body(*api_v2);
Expand Down Expand Up @@ -573,7 +573,9 @@ SimulatorRPCChannel::SimulatorRPCChannel(std::string args) {
CHECKED_CALL(ConfigureCosim, cosim_file_);
CHECKED_CALL(ConfigureExecutableBinary, sdk.runelf.c_str());

std::string cmdline = sdk.runelf + " " + sdk.runmain + " -- libhexagon_rpc_sim.so";
std::string stack_arg =
stack_size > 0 ? std::string(" -stack_size=") + std::to_string(stack_size) : "";
std::string cmdline = sdk.runelf + " " + sdk.runmain + stack_arg + " -- libhexagon_rpc_sim.so";
char* parg = &cmdline[0];
CHECKED_CALL(ConfigureAppCommandLine, 1, &parg);

Expand Down Expand Up @@ -1314,9 +1316,9 @@ TVM_REGISTER_GLOBAL("tvm.contrib.hexagon.create_hexagon_session")
ICHECK(args.size() >= 4) << args.size() << " is less than 4";

std::string session_name = args[0];
// For target, the second parameter is remote_stack_size_bytes, ignore it.
int stack_size = args[1];
std::string sim_args = args[2];
auto channel = std::make_unique<SimulatorRPCChannel>(sim_args);
auto channel = std::make_unique<SimulatorRPCChannel>(stack_size, sim_args);
std::shared_ptr<RPCEndpoint> endpoint =
RPCEndpoint::Create(std::move(channel), session_name, "", nullptr);
std::shared_ptr<RPCSession> session = CreateClientSession(endpoint);
Expand Down