From 552b93168a129306055afb94094fac4c979fc415 Mon Sep 17 00:00:00 2001 From: Yu-hsin Wang Date: Mon, 2 Aug 2021 12:06:56 +0800 Subject: [PATCH] fastmodel: add helper class for exporting amba_pv signal To bridge amba_pv::signal_master_port with IntPins, we made a helper class for the purpose. The SignalSender class can be exported as a gem5 Port, receive the signal, and transfer to fastmodel. Here's an example showing how it works *.lisa ``` component { slave port reset; } ``` evs.hh ``` class { SignalSender reset; } ``` evs.cc ``` constructor(Params &p) : reset(p.name + ".reset", 0) { reset.signal_out.bind(Base::reset); } getPort { return reset; } ``` Change-Id: I0936f9ebb2cd60e975661ae78e590285da697771 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48943 Reviewed-by: Gabe Black Maintainer: Gabe Black Tested-by: kokoro --- .../arm/fastmodel/common/signal_sender.hh | 58 +++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/arch/arm/fastmodel/common/signal_sender.hh diff --git a/src/arch/arm/fastmodel/common/signal_sender.hh b/src/arch/arm/fastmodel/common/signal_sender.hh new file mode 100644 index 0000000000..dbd4526b4e --- /dev/null +++ b/src/arch/arm/fastmodel/common/signal_sender.hh @@ -0,0 +1,58 @@ +/* + * Copyright 2021 Google, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_SENDER_HH__ +#define __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_SENDER_HH__ + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Woverloaded-virtual" +#include +#pragma GCC diagnostic pop + +#include "dev/intpin.hh" + +namespace FastModel +{ + +class SignalSender : public IntSinkPinBase +{ + public: + amba_pv::signal_master_port signal_out; + + SignalSender(const std::string &_name, PortID _id) : + IntSinkPinBase(_name, _id, 0), + signal_out((_name + ".sig").c_str()) + {} + + private: + void raiseOnDevice() override { signal_out.set_state(id, true); } + void lowerOnDevice() override { signal_out.set_state(id, false); } +}; + +} // namespace FastModel + +#endif // __ARCH_ARM_FASTMODEL_COMMON_SIGNAL_SENDER_HH__