2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
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28 * Authors: Andrew Schultz
33 * PCI Configspace implementation
36 #include "base/trace.hh"
37 #include "debug/PciConfigAll.hh"
38 #include "dev/pciconfigall.hh"
39 #include "dev/pcireg.h"
40 #include "dev/platform.hh"
41 #include "mem/packet.hh"
42 #include "mem/packet_access.hh"
43 #include "params/PciConfigAll.hh"
44 #include "sim/system.hh"
46 PciConfigAll::PciConfigAll(const Params
*p
)
49 pioAddr
= p
->platform
->calcPciConfigAddr(params()->bus
,0,0);
54 PciConfigAll::read(PacketPtr pkt
)
59 DPRINTF(PciConfigAll
, "read va=%#x size=%d\n", pkt
->getAddr(),
62 switch (pkt
->getSize()) {
63 case sizeof(uint32_t):
64 pkt
->set
<uint32_t>(0xFFFFFFFF);
66 case sizeof(uint16_t):
67 pkt
->set
<uint16_t>(0xFFFF);
70 pkt
->set
<uint8_t>(0xFF);
73 panic("invalid access size(?) for PCI configspace!\n");
75 pkt
->makeAtomicResponse();
76 return params()->pio_latency
;
80 PciConfigAll::write(PacketPtr pkt
)
82 panic("Attempting to write to config space on non-existant device\n");
88 PciConfigAll::getAddrRanges() const
91 ranges
.push_back(RangeSize(pioAddr
, params()->size
));
96 #ifndef DOXYGEN_SHOULD_SKIP_THIS
99 PciConfigAllParams::create()
101 return new PciConfigAll(this);
104 #endif // DOXYGEN_SHOULD_SKIP_THIS