Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/dev/io_device.cc
+++ b/simulators/gem5/src/dev/io_device.cc
@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2012 ARM Limited
+ * All rights reserved.
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Authors: Ali Saidi
+ *          Nathan Binkert
+ */
+
+#include "base/trace.hh"
+#include "debug/BusAddrRanges.hh"
+#include "dev/io_device.hh"
+#include "sim/system.hh"
+
+PioPort::PioPort(PioDevice *dev)
+    : SimpleTimingPort(dev->name() + "-pio", dev), device(dev)
+{
+}
+
+Tick
+PioPort::recvAtomic(PacketPtr pkt)
+{
+    return pkt->isRead() ? device->read(pkt) : device->write(pkt);
+}
+
+AddrRangeList
+PioPort::getAddrRanges()
+{
+    return device->getAddrRanges();
+}
+
+PioDevice::PioDevice(const Params *p)
+    : MemObject(p), sys(p->system), pioPort(this)
+{}
+
+PioDevice::~PioDevice()
+{
+}
+
+void
+PioDevice::init()
+{
+    if (!pioPort.isConnected())
+        panic("Pio port of %s not connected to anything!", name());
+    pioPort.sendRangeChange();
+}
+
+SlavePort &
+PioDevice::getSlavePort(const std::string &if_name, int idx)
+{
+    if (if_name == "pio") {
+        return pioPort;
+    }
+    return MemObject::getSlavePort(if_name, idx);
+}
+
+unsigned int
+PioDevice::drain(Event *de)
+{
+    unsigned int count;
+    count = pioPort.drain(de);
+    if (count)
+        changeState(Draining);
+    else
+        changeState(Drained);
+    return count;
+}
+
+BasicPioDevice::BasicPioDevice(const Params *p)
+    : PioDevice(p), pioAddr(p->pio_addr), pioSize(0),
+      pioDelay(p->pio_latency)
+{}
+
+AddrRangeList
+BasicPioDevice::getAddrRanges()
+{
+    assert(pioSize != 0);
+    AddrRangeList ranges;
+    DPRINTF(BusAddrRanges, "registering range: %#x-%#x\n", pioAddr, pioSize);
+    ranges.push_back(RangeSize(pioAddr, pioSize));
+    return ranges;
+}