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"
48 PciConfigAll::PciConfigAll(const Params
*p
)
51 pioAddr
= p
->platform
->calcPciConfigAddr(params()->bus
,0,0);
56 PciConfigAll::read(PacketPtr pkt
)
61 DPRINTF(PciConfigAll
, "read va=%#x size=%d\n", pkt
->getAddr(),
64 switch (pkt
->getSize()) {
65 case sizeof(uint32_t):
66 pkt
->set
<uint32_t>(0xFFFFFFFF);
68 case sizeof(uint16_t):
69 pkt
->set
<uint16_t>(0xFFFF);
72 pkt
->set
<uint8_t>(0xFF);
75 panic("invalid access size(?) for PCI configspace!\n");
77 pkt
->makeAtomicResponse();
78 return params()->pio_latency
;
82 PciConfigAll::write(PacketPtr pkt
)
84 panic("Attempting to write to config space on non-existant device\n");
90 PciConfigAll::addressRanges(AddrRangeList
&range_list
)
93 range_list
.push_back(RangeSize(pioAddr
, params()->size
));
97 #ifndef DOXYGEN_SHOULD_SKIP_THIS
100 PciConfigAllParams::create()
102 return new PciConfigAll(this);
105 #endif // DOXYGEN_SHOULD_SKIP_THIS