abc76f20cb
creation and initialization now happens in python. Parameter objects are generated and initialized by python. The .ini file is now solely for debugging purposes and is not used in construction of the objects in any way. --HG-- extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
152 lines
4.4 KiB
C++
152 lines
4.4 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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*/
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/** @file
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* Emulation of the Tsunami CChip CSRs
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*/
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#ifndef __TSUNAMI_CCHIP_HH__
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#define __TSUNAMI_CCHIP_HH__
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#include "base/range.hh"
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#include "dev/alpha/tsunami.hh"
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#include "dev/io_device.hh"
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#include "params/TsunamiCChip.hh"
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/**
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* Tsunami CChip CSR Emulation. This device includes all the interrupt
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* handling code for the chipset.
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*/
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class TsunamiCChip : public BasicPioDevice
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{
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protected:
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/**
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* pointer to the tsunami object.
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* This is our access to all the other tsunami
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* devices.
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*/
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Tsunami *tsunami;
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/**
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* The dims are device interrupt mask registers.
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* One exists for each CPU, the DRIR X DIM = DIR
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*/
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uint64_t dim[Tsunami::Max_CPUs];
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/**
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* The dirs are device interrupt registers.
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* One exists for each CPU, the DRIR X DIM = DIR
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*/
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uint64_t dir[Tsunami::Max_CPUs];
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/**
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* This register contains bits for each PCI interrupt
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* that can occur.
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*/
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uint64_t drir;
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/** Indicator of which CPUs have an IPI interrupt */
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uint64_t ipint;
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/** Indicator of which CPUs have an RTC interrupt */
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uint64_t itint;
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public:
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typedef TsunamiCChipParams Params;
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/**
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* Initialize the Tsunami CChip by setting all of the
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* device register to 0.
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* @param p params struct
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*/
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TsunamiCChip(const Params *p);
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const Params *
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params() const
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{
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return dynamic_cast<const Params *>(_params);
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}
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virtual Tick read(PacketPtr pkt);
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virtual Tick write(PacketPtr pkt);
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/**
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* post an RTC interrupt to the CPU
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*/
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void postRTC();
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/**
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* post an interrupt to the CPU.
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* @param interrupt the interrupt number to post (0-64)
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*/
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void postDRIR(uint32_t interrupt);
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/**
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* clear an interrupt previously posted to the CPU.
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* @param interrupt the interrupt number to post (0-64)
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*/
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void clearDRIR(uint32_t interrupt);
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/**
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* post an ipi interrupt to the CPU.
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* @param ipintr the cpu number to clear(bitvector)
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*/
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void clearIPI(uint64_t ipintr);
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/**
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* clear a timer interrupt previously posted to the CPU.
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* @param itintr the cpu number to clear(bitvector)
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*/
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void clearITI(uint64_t itintr);
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/**
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* request an interrupt be posted to the CPU.
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* @param ipreq the cpu number to interrupt(bitvector)
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*/
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void reqIPI(uint64_t ipreq);
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/**
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* Serialize this object to the given output stream.
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* @param os The stream to serialize to.
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*/
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virtual void serialize(std::ostream &os);
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/**
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* Reconstruct the state of this object from a checkpoint.
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* @param cp The checkpoint use.
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* @param section The section name of this object
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*/
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virtual void unserialize(Checkpoint *cp, const std::string §ion);
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};
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#endif // __TSUNAMI_CCHIP_HH__
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