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Diffstat (limited to 'src/dev/pciconfigall.cc')
-rw-r--r-- | src/dev/pciconfigall.cc | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/dev/pciconfigall.cc b/src/dev/pciconfigall.cc new file mode 100644 index 000000000..68013eab8 --- /dev/null +++ b/src/dev/pciconfigall.cc @@ -0,0 +1,131 @@ +/* + * 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: Andrew Schultz + * Ali Saidi + */ + +/* @file + * PCI Configspace implementation + */ + +#include "base/trace.hh" +#include "dev/pciconfigall.hh" +#include "dev/pcireg.h" +#include "dev/platform.hh" +#include "mem/packet.hh" +#include "sim/builder.hh" +#include "sim/system.hh" + +using namespace std; + +PciConfigAll::PciConfigAll(Params *p) + : PioDevice(p) +{ + pioAddr = p->platform->calcConfigAddr(params()->bus,0,0); +} + + +Tick +PciConfigAll::read(Packet *pkt) +{ + assert(pkt->result == Packet::Unknown); + + pkt->allocate(); + + DPRINTF(PciConfigAll, "read va=%#x size=%d\n", pkt->getAddr(), + pkt->getSize()); + + switch (pkt->getSize()) { + case sizeof(uint32_t): + pkt->set<uint32_t>(0xFFFFFFFF); + break; + case sizeof(uint16_t): + pkt->set<uint16_t>(0xFFFF); + break; + case sizeof(uint8_t): + pkt->set<uint8_t>(0xFF); + break; + default: + panic("invalid access size(?) for PCI configspace!\n"); + } + pkt->result = Packet::Success; + return params()->pio_delay; +} + +Tick +PciConfigAll::write(Packet *pkt) +{ + assert(pkt->result == Packet::Unknown); + panic("Attempting to write to config space on non-existant device\n"); +} + +void +PciConfigAll::addressRanges(AddrRangeList &range_list) +{ + range_list.clear(); + range_list.push_back(RangeSize(pioAddr, params()->size)); +} + + +#ifndef DOXYGEN_SHOULD_SKIP_THIS + +BEGIN_DECLARE_SIM_OBJECT_PARAMS(PciConfigAll) + + Param<Tick> pio_latency; + Param<int> bus; + Param<Addr> size; + SimObjectParam<Platform *> platform; + SimObjectParam<System *> system; + +END_DECLARE_SIM_OBJECT_PARAMS(PciConfigAll) + +BEGIN_INIT_SIM_OBJECT_PARAMS(PciConfigAll) + + INIT_PARAM(pio_latency, "Programmed IO latency"), + INIT_PARAM(bus, "Bus that this object handles config space for"), + INIT_PARAM(size, "The size of config space"), + INIT_PARAM(platform, "platform"), + INIT_PARAM(system, "system object") + +END_INIT_SIM_OBJECT_PARAMS(PciConfigAll) + +CREATE_SIM_OBJECT(PciConfigAll) +{ + PciConfigAll::Params *p = new PciConfigAll::Params; + p->pio_delay = pio_latency; + p->platform = platform; + p->system = system; + p->bus = bus; + p->size = size; + + return new PciConfigAll(p); +} + +REGISTER_SIM_OBJECT("PciConfigAll", PciConfigAll) + +#endif // DOXYGEN_SHOULD_SKIP_THIS |