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author | Andrew Schultz <alschult@umich.edu> | 2004-02-04 15:03:50 -0500 |
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committer | Andrew Schultz <alschult@umich.edu> | 2004-02-04 15:03:50 -0500 |
commit | f2b8df24208e3dc0522ed64f2b57e89268db61ae (patch) | |
tree | 7d12a8fb0be21e7d0c867d2de261aca4ef34b3a7 /dev/pciconfigall.hh | |
parent | 579c5b59e1b66ec9cf4b986d210b481b064264c7 (diff) | |
download | gem5-f2b8df24208e3dc0522ed64f2b57e89268db61ae.tar.xz |
Changes to support PciDev as a new base class for devices which use PCI
--HG--
extra : convert_revision : fc2bc4399665344220b1a7e345ae6d2df03c9960
Diffstat (limited to 'dev/pciconfigall.hh')
-rw-r--r-- | dev/pciconfigall.hh | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/dev/pciconfigall.hh b/dev/pciconfigall.hh new file mode 100644 index 000000000..e84c6adb3 --- /dev/null +++ b/dev/pciconfigall.hh @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2003 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. + */ + +/* @file + * PCI Config space implementation. + */ + +#ifndef __PCICONFIGALL_HH__ +#define __PCICONFIGALL_HH__ + +#include "mem/functional_mem/mmap_device.hh" +#include "dev/tsunami.hh" +#include "dev/pcireg.h" + +#define MAX_PCI_DEV 32 +#define MAX_PCI_FUNC 8 + +class PciDev; + +/** + * PCI Config Space + * All of PCI config space needs to return -1 on Tsunami, except + * the devices that exist. This device maps the entire bus config + * space and passes the requests on to TsunamiPCIDev devices as + * appropriate. + */ +class PCIConfigAll : public MmapDevice +{ + private: + + protected: + + /** + * Pointer to the Tsunmi Object so we can communicate + * to other Tsunami devices in need be. + */ + Tsunami *tsunami; + + public: + /** + * Pointers to all the devices that are registered with this + * particular config space. + */ + PciDev* devices[MAX_PCI_DEV][MAX_PCI_FUNC]; + + /** + * The default constructor. + */ + PCIConfigAll(const std::string &name, Tsunami *t, + Addr addr, Addr mask, MemoryController *mmu); + + virtual Fault read(MemReqPtr &req, uint8_t *data); + virtual Fault write(MemReqPtr &req, const uint8_t *data); + + virtual void serialize(std::ostream &os); + virtual void unserialize(Checkpoint *cp, const std::string §ion); + +}; + +#endif // __PCICONFIGALL_HH__ |