Files
gem5/src/dev/intpin.hh
Gabe Black 89d5bfca7c fastmodel,dev: Rework the Int*Pin classes with Signal*Port.
These are largely compatibility wrappers around the Signal*Port
classes. The python versions of these types enforce more specific
compatibility, but on the c++ side the Signal*Port<bool> classes can
be used directly instead.

Change-Id: I1325074d0ed1c8fc6dfece5ac1ee33872cc4f5e3
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/66673
Maintainer: Gabe Black <gabeblack@google.com>
Reviewed-by: Yu-hsin Wang <yuhsingw@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2022-12-16 07:19:05 +00:00

99 lines
3.0 KiB
C++

/*
* Copyright 2019 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 __DEV_INTPIN_HH__
#define __DEV_INTPIN_HH__
#include <type_traits>
#include "sim/signal.hh"
namespace gem5
{
class IntSinkPinBase : public SignalSinkPort<bool>
{
private:
const int _number = 0;
public:
template <class Device>
IntSinkPinBase(const std::string &_name, PortID _id, Device *dev,
int num) :
SignalSinkPort(_name, _id), _number(num)
{
onChange([dev, num](const bool &new_val) {
if (new_val)
dev->raiseInterruptPin(num);
else
dev->lowerInterruptPin(num);
});
}
template <class Device>
IntSinkPinBase(const std::string &_name, PortID _id, Device *dev) :
IntSinkPinBase(_name, _id, dev, _id)
{}
IntSinkPinBase(const std::string &_name, PortID _id, int num) :
SignalSinkPort(_name, _id), _number(num)
{}
IntSinkPinBase(const std::string &_name, PortID _id) :
IntSinkPinBase(_name, _id, _id)
{}
int number() { return _number; }
};
template <class Compat>
using IntSinkPin = IntSinkPinBase;
class IntSourcePinBase : public SignalSourcePort<bool>
{
public:
template <class Device>
IntSourcePinBase(const std::string &_name, PortID _id, Device *owner) :
SignalSourcePort(_name, _id)
{}
IntSourcePinBase(const std::string &_name, PortID _id) :
SignalSourcePort(_name, _id)
{}
void raise() { set(true); }
void lower() { set(false); }
};
template <class Compat>
using IntSourcePin = IntSourcePinBase;
} // namespace gem5
#endif //__DEV_INTPIN_HH__