tsunami.hh revision 2846 
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 */
30
31/**
32 * @file
33 * Declaration of top level class for the Tsunami chipset. This class just
34 * retains pointers to all its children so the children can communicate.
35 */
36
37#ifndef __DEV_TSUNAMI_HH__
38#define __DEV_TSUNAMI_HH__
39
40#include "dev/platform.hh"
41
42class IdeController;
43class TsunamiCChip;
44class TsunamiPChip;
45class TsunamiIO;
46class System;
47
48/**
49  * Top level class for Tsunami Chipset emulation.
50  * This structure just contains pointers to all the
51  * children so the children can commnicate to do the
52  * read work
53  */
54
55class Tsunami : public Platform
56{
57  public:
58    /** Max number of CPUs in a Tsunami */
59    static const int Max_CPUs = 64;
60
61    /** Pointer to the system */
62    System *system;
63
64    /** Pointer to the TsunamiIO device which has the RTC */
65    TsunamiIO *io;
66
67    /** Pointer to the Tsunami CChip.
68     * The chip contains some configuration information and
69     * all the interrupt mask and status registers
70     */
71    TsunamiCChip *cchip;
72
73    /** Pointer to the Tsunami PChip.
74     * The pchip is the interface to the PCI bus, in our case
75     * it does not have to do much.
76     */
77    TsunamiPChip *pchip;
78
79    int intr_sum_type[Tsunami::Max_CPUs];
80    int ipi_pending[Tsunami::Max_CPUs];
81
82  public:
83    /**
84     * Constructor for the Tsunami Class.
85     * @param name name of the object
86     * @param intrctrl pointer to the interrupt controller
87     */
88    Tsunami(const std::string &name, System *s, IntrControl *intctrl);
89
90    /**
91     * Return the interrupting frequency to AlphaAccess
92     * @return frequency of RTC interrupts
93     */
94    virtual Tick intrFrequency();
95
96    /**
97     * Cause the cpu to post a serial interrupt to the CPU.
98     */
99    virtual void postConsoleInt();
100
101    /**
102     * Clear a posted CPU interrupt (id=55)
103     */
104    virtual void clearConsoleInt();
105
106    /**
107     * Cause the chipset to post a cpi interrupt to the CPU.
108     */
109    virtual void postPciInt(int line);
110
111    /**
112     * Clear a posted PCI->CPU interrupt
113     */
114    virtual void clearPciInt(int line);
115
116
117    virtual Addr pciToDma(Addr pciAddr) const;
118
119    /**
120     * Calculate the configuration address given a bus/dev/func.
121     */
122    virtual Addr calcConfigAddr(int bus, int dev, int func);
123
124    /**
125     * Serialize this object to the given output stream.
126     * @param os The stream to serialize to.
127     */
128    virtual void serialize(std::ostream &os);
129
130    /**
131     * Reconstruct the state of this object from a checkpoint.
132     * @param cp The checkpoint use.
133     * @param section The section name of this object
134     */
135    virtual void unserialize(Checkpoint *cp, const std::string &section);
136};
137
138#endif // __DEV_TSUNAMI_HH__
139