e2dbe59f5d
In order for a system object to work in SE mode and FS mode, it has to either always require a platform object even in SE mode, or get rid of the requirement all together. Making SE mode carry around unnecessary/unused bits of FS seems less than ideal, so I decided to go with the second option. The platform pointer in the System class was used for exactly one purpose, a path for the Alpha Linux system object to get to the real time clock and read its frequency so that it could short cut the loops_per_jiffy calculation. There was also a copy and pasted implementation in MIPS, but since it was only there because it was there in Alpha I still count that as one use. This change reverses the mechanism that communicates the RTC frequency so that the Tsunami platform object pushes it up to the AlphaSystem object. This is slightly less specific than it could be because really only the AlphaLinuxSystem uses it. Because the intrFrequency function on the Platform class was no longer necessary (and unimplemented on anything but Alpha) it was eliminated. After this change, a platform will need to have a system, but a system won't have to have a platform.
123 lines
3.4 KiB
C++
123 lines
3.4 KiB
C++
/*
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* Copyright (c) 2009 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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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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* Implementation of RealView platform.
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*/
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#include <deque>
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#include <string>
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#include <vector>
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#include "config/the_isa.hh"
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#include "cpu/intr_control.hh"
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#include "dev/arm/gic.hh"
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#include "dev/arm/realview.hh"
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#include "dev/terminal.hh"
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#include "sim/system.hh"
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using namespace std;
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using namespace TheISA;
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RealView::RealView(const Params *p)
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: Platform(p), system(p->system)
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{}
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void
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RealView::postConsoleInt()
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{
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warn_once("Don't know what interrupt to post for console.\n");
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//panic("Need implementation\n");
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}
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void
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RealView::clearConsoleInt()
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{
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warn_once("Don't know what interrupt to clear for console.\n");
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//panic("Need implementation\n");
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}
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void
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RealView::postPciInt(int line)
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{
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gic->sendInt(line);
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}
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void
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RealView::clearPciInt(int line)
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{
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gic->clearInt(line);
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}
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Addr
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RealView::pciToDma(Addr pciAddr) const
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{
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return pciAddr;
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}
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Addr
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RealView::calcPciConfigAddr(int bus, int dev, int func)
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{
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if (bus != 0)
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return ULL(-1);
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return params()->pci_cfg_base | ((func & 7) << 16) | ((dev & 0x1f) << 19);
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}
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Addr
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RealView::calcPciIOAddr(Addr addr)
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{
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return addr;
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}
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Addr
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RealView::calcPciMemAddr(Addr addr)
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{
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return addr;
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}
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RealView *
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RealViewParams::create()
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{
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return new RealView(this);
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}
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