Changes to support PciDev as a new base class for devices which use PCI

--HG--
extra : convert_revision : fc2bc4399665344220b1a7e345ae6d2df03c9960

1 files changed, 85 insertions, 0 deletions

diff --git a/dev/pciconfigall.hh b/dev/pciconfigall.hh
new file mode 100644
index 000000000..e84c6adb3
--- /dev/null
+++ b/dev/pciconfigall.hh
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2003 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.
+ */
+
+/* @file
+ * PCI Config space implementation.
+ */
+
+#ifndef __PCICONFIGALL_HH__
+#define __PCICONFIGALL_HH__
+
+#include "mem/functional_mem/mmap_device.hh"
+#include "dev/tsunami.hh"
+#include "dev/pcireg.h"
+
+#define MAX_PCI_DEV     32
+#define MAX_PCI_FUNC    8
+
+class PciDev;
+
+/**
+ * PCI Config Space
+ * All of PCI config space needs to return -1 on Tsunami, except
+ * the devices that exist. This device maps the entire bus config
+ * space and passes the requests on to TsunamiPCIDev devices as
+ * appropriate.
+ */
+class PCIConfigAll : public MmapDevice
+{
+  private:
+
+  protected:
+
+    /**
+      * Pointer to the Tsunmi Object so we can communicate
+      * to other Tsunami devices in need be.
+      */
+    Tsunami *tsunami;
+
+  public:
+    /**
+      * Pointers to all the devices that are registered with this
+      * particular config space.
+      */
+    PciDev* devices[MAX_PCI_DEV][MAX_PCI_FUNC];
+
+    /**
+      * The default constructor.
+      */
+    PCIConfigAll(const std::string &name, Tsunami *t,
+                 Addr addr, Addr mask, MemoryController *mmu);
+
+    virtual Fault read(MemReqPtr &req, uint8_t *data);
+    virtual Fault write(MemReqPtr &req, const uint8_t *data);
+
+    virtual void serialize(std::ostream &os);
+    virtual void unserialize(Checkpoint *cp, const std::string &section);
+
+};
+
+#endif // __PCICONFIGALL_HH__