1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
* 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 "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);
void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
};
#endif // __TSUNAMI_PCHIP_HH__
|
