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Diffstat (limited to 'src/dev/tsunami_pchip.hh')
-rw-r--r-- | src/dev/tsunami_pchip.hh | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/dev/tsunami_pchip.hh b/src/dev/tsunami_pchip.hh new file mode 100644 index 000000000..2c97a1fea --- /dev/null +++ b/src/dev/tsunami_pchip.hh @@ -0,0 +1,105 @@ +/* + * 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 + * Tsunami PCI interface CSRs + */ + +#ifndef __TSUNAMI_PCHIP_HH__ +#define __TSUNAMI_PCHIP_HH__ + +#include "dev/tsunami.hh" +#include "base/range.hh" +#include "dev/io_device.hh" + +/** + * A very simple implementation of the Tsunami PCI interface chips. + */ +class TsunamiPChip : public BasicPioDevice +{ + protected: + + static const Addr TsunamiPciBus0Config = 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: + struct Params : public BasicPioDevice::Params + { + Tsunami *tsunami; + }; + protected: + const Params *params() const { return (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 + */ + TsunamiPChip(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(Packet *pkt); + virtual Tick write(Packet *pkt); + + /** + * Serialize this object to the given output stream. + * @param os The stream to serialize to. + */ + virtual void serialize(std::ostream &os); + + /** + * Reconstruct the state of this object from a checkpoint. + * @param cp The checkpoint use. + * @param section The section name of this object + */ + virtual void unserialize(Checkpoint *cp, const std::string §ion); +}; + +#endif // __TSUNAMI_PCHIP_HH__ |