From 16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Thu, 24 May 2018 01:37:55 -0700 Subject: systemc: Import tests from the Accellera systemc distribution. Change-Id: Iad76b398949a55d768a34d027a2d8e3739953da6 Reviewed-on: https://gem5-review.googlesource.com/10845 Reviewed-by: Giacomo Travaglini Maintainer: Gabe Black --- .../multi_passthrough_sockets_bug.cpp | 196 +++++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 src/systemc/tests/tlm/bugs/multi_passthrough_sockets_bug/multi_passthrough_sockets_bug.cpp (limited to 'src/systemc/tests/tlm/bugs/multi_passthrough_sockets_bug/multi_passthrough_sockets_bug.cpp') diff --git a/src/systemc/tests/tlm/bugs/multi_passthrough_sockets_bug/multi_passthrough_sockets_bug.cpp b/src/systemc/tests/tlm/bugs/multi_passthrough_sockets_bug/multi_passthrough_sockets_bug.cpp new file mode 100644 index 000000000..209093aa7 --- /dev/null +++ b/src/systemc/tests/tlm/bugs/multi_passthrough_sockets_bug/multi_passthrough_sockets_bug.cpp @@ -0,0 +1,196 @@ +/***************************************************************************** + + Licensed to Accellera Systems Initiative Inc. (Accellera) under one or + more contributor license agreements. See the NOTICE file distributed + with this work for additional information regarding copyright ownership. + Accellera licenses this file to you under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with the + License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied. See the License for the specific language governing + permissions and limitations under the License. + + *****************************************************************************/ +#define SC_INCLUDE_DYNAMIC_PROCESSES +#include "systemc" +#include "tlm" +#include "tlm_utils/simple_initiator_socket.h" +#include "tlm_utils/multi_passthrough_target_socket.h" + +class introspection_extension; + +class initiator_module : public sc_core::sc_module +{ +public: + + tlm_utils::simple_initiator_socket initiator_socket; + SC_HAS_PROCESS(initiator_module); + explicit initiator_module(sc_core::sc_module_name module_name) + : sc_core::sc_module(module_name) + , initiator_socket("initiator_socket") + { + SC_THREAD(process); + } + + void process() + { + // To verify regular TLM-2 access from initiators are OK + tlm::tlm_generic_payload transaction; + + unsigned char byte = 0x42; + + transaction.set_command(tlm::TLM_WRITE_COMMAND); + transaction.set_address(sc_dt::uint64(0)); + transaction.set_data_length(1); + transaction.set_streaming_width(1); + transaction.set_data_ptr(&byte); + transaction.set_byte_enable_ptr(0); + transaction.set_byte_enable_length(0); + transaction.set_dmi_allowed(false); + transaction.set_response_status(tlm::TLM_INCOMPLETE_RESPONSE); + + sc_core::sc_time t = sc_core::SC_ZERO_TIME; + + initiator_socket->b_transport(transaction, t); + } + +}; + +class target_module : public sc_core::sc_module +{ +public: + + tlm_utils::multi_passthrough_target_socket target_socket; + tlm_utils::multi_passthrough_target_socket target_optional; + + explicit target_module(sc_core::sc_module_name module_name) + : sc_core::sc_module(module_name) + , target_socket("target_socket") + , target_optional("target_optional") + { + target_socket.register_b_transport(this, &target_module::transport); + target_socket.register_transport_dbg(this, &target_module::transport_dbg); + target_socket.register_get_direct_mem_ptr(this, &target_module::get_direct_mem_ptr); + + // bind callbacks to optional socket (unbound) + target_optional.register_b_transport(this, &target_module::transport); + target_optional.register_transport_dbg(this, &target_module::transport_dbg); + target_optional.register_get_direct_mem_ptr(this, &target_module::get_direct_mem_ptr); + } + + virtual void transport(int port, tlm::tlm_generic_payload & transaction, sc_core::sc_time & t) {} + + virtual unsigned int transport_dbg(int port, tlm::tlm_generic_payload & transaction) + { + if ((transaction.get_command() == tlm::TLM_IGNORE_COMMAND) && + transaction.get_extension()) + { + std::cout << "Received successfully introspection extension!" << std::endl; + } + + return 0; + } + + virtual bool get_direct_mem_ptr(int port, tlm::tlm_generic_payload & transaction, tlm::tlm_dmi & dmi_data) { return false; } + +}; + +// Simple empty extension to verify the target module is receiving it +class introspection_extension : public tlm::tlm_extension +{ +public: + + virtual tlm_extension_base * clone() const + { + return new introspection_extension; + } + + virtual void copy_from(tlm_extension_base const & ext) + { + } + +}; + +class introspector_module : public sc_core::sc_module +{ +public: + + SC_HAS_PROCESS(introspector_module); + introspector_module(sc_core::sc_module_name module_name) : + sc_core::sc_module(module_name) + { + SC_THREAD(process); + } + + void send_introspection_request(sc_core::sc_export > & target_socket) + { + tlm::tlm_generic_payload transaction; + + transaction.set_command(tlm::TLM_IGNORE_COMMAND); + transaction.set_address(sc_dt::uint64(0)); + transaction.set_data_length(0); + transaction.set_streaming_width(0); + transaction.set_data_ptr(0); + transaction.set_byte_enable_ptr(0); + transaction.set_byte_enable_length(0); + transaction.set_dmi_allowed(false); + transaction.set_response_status(tlm::TLM_INCOMPLETE_RESPONSE); + + introspection_extension *ext = new introspection_extension; + + transaction.set_extension(ext); + + target_socket->transport_dbg(transaction); + } + + void find_target_sockets(sc_core::sc_module *module) + { + std::vector children = module->get_child_objects(); + + for (std::vector::iterator i = children.begin(); i != children.end(); ++i) + { + if (dynamic_cast(*i)) + { + find_target_sockets(dynamic_cast(*i)); + } + else if (dynamic_cast > *>((*i))) + { + sc_core::sc_export > * target_socket = dynamic_cast > *>(*i); + + send_introspection_request(*target_socket); + } + } + } + + void process() + { + const std::vector & top_objs = sc_core::sc_get_top_level_objects(); + + for (std::vector::const_iterator i = top_objs.begin(); i != top_objs.end(); ++i) + { + if (dynamic_cast(*i)) + { + find_target_sockets(dynamic_cast(*i)); + } + } + } + +}; + +int sc_main(int argc, char* argv[]) +{ + initiator_module initiator("initiator"); + target_module target("target"); + introspector_module introspector("introspector"); + + initiator.initiator_socket(target.target_socket); + + sc_core::sc_start(); + + return 0; +} -- cgit v1.2.3