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authorKorey Sewell <ksewell@umich.edu>2007-11-13 16:58:16 -0500
committerKorey Sewell <ksewell@umich.edu>2007-11-13 16:58:16 -0500
commit269259004943b80916ec9b6354f2fc00c811c88b (patch)
tree4a01b0300aef6692a787f85d42280a1dbdb086e6 /src/dev/mips/malta_pchip.hh
parent422ab8bec0034a6b703578ec2c92350c6382875a (diff)
downloadgem5-269259004943b80916ec9b6354f2fc00c811c88b.tar.xz
Add in files from merge-bare-iron, get them compiling in FS and SE mode
--HG-- extra : convert_revision : d4e19afda897bc3797868b40469ce2ec7ec7d251
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+/*
+ * Copyright (c) 2004-2005 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
+ */
+
+/** @file
+ * Malta PCI interface CSRs
+ */
+
+#ifndef __MALTA_PCHIP_HH__
+#define __MALTA_PCHIP_HH__
+
+#include "dev/mips/malta.hh"
+#include "base/range.hh"
+#include "dev/io_device.hh"
+#include "params/MaltaPChip.hh"
+
+/**
+ * A very simple implementation of the Malta PCI interface chips.
+ */
+class MaltaPChip : public BasicPioDevice
+{
+ protected:
+
+ static const Addr MaltaPciBus0Config = ULL(0x801fe000000);
+
+ /** Pchip control register */
+ uint64_t pctl;
+
+ /** Window Base addresses */
+ uint64_t wsba[4];
+
+ /** Window masks */
+ uint64_t wsm[4];
+
+ /** Translated Base Addresses */
+ uint64_t tba[4];
+
+ public:
+ typedef MaltaPChipParams Params;
+
+ const Params *
+ params() const
+ {
+ return dynamic_cast<const Params *>(_params);
+ }
+ public:
+ /**
+ * Register the PChip with the mmu and init all wsba, wsm, and tba to 0
+ * @param p pointer to the parameters struct
+ */
+ MaltaPChip(const Params *p);
+
+ /**
+ * Translate a PCI bus address to a memory address for DMA.
+ * @todo Andrew says this needs to be fixed. What's wrong with it?
+ * @param busAddr PCI address to translate.
+ * @return memory system address
+ */
+ Addr translatePciToDma(Addr busAddr);
+
+ Addr calcConfigAddr(int bus, int dev, int func);
+
+ virtual Tick read(PacketPtr pkt);
+ virtual Tick write(PacketPtr pkt);
+
+ /**
+ * Serialize this object to the given output stream.
+ * @param os The stream to serialize to.
+ */
+ virtual void serialize(std::ostream &os);
+
+ /**
+ * Reconstruct the state of this object from a checkpoint.
+ * @param cp The checkpoint use.
+ * @param section The section name of this object
+ */
+ virtual void unserialize(Checkpoint *cp, const std::string &section);
+};
+
+#endif // __TSUNAMI_PCHIP_HH__