1 files changed, 105 insertions, 0 deletions
diff --git a/src/dev/alpha/tsunami_pchip.hh b/src/dev/alpha/tsunami_pchip.hh
new file mode 100644
index 000000000..1632a36d4
--- /dev/null
+++ b/src/dev/alpha/tsunami_pchip.hh
@@ -0,0 +1,105 @@
+/*
+ * 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
+ * Tsunami PCI interface CSRs
+ */
+
+#ifndef __TSUNAMI_PCHIP_HH__
+#define __TSUNAMI_PCHIP_HH__
+
+#include "dev/alpha/tsunami.hh"
+#include "base/range.hh"
+#include "dev/io_device.hh"
+
+/**
+ * A very simple implementation of the Tsunami PCI interface chips.
+ */
+class TsunamiPChip : public BasicPioDevice
+{
+  protected:
+
+    static const Addr TsunamiPciBus0Config = 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:
+    struct Params : public BasicPioDevice::Params
+    {
+        Tsunami *tsunami;
+    };
+  protected:
+    const Params *params() const { return (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
+     */
+    TsunamiPChip(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__