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Diffstat (limited to 'src/cpu/base.hh')
-rw-r--r-- | src/cpu/base.hh | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/cpu/base.hh b/src/cpu/base.hh index a4ffb4716..41c79dff6 100644 --- a/src/cpu/base.hh +++ b/src/cpu/base.hh @@ -1,4 +1,16 @@ /* + * Copyright (c) 2011 ARM Limited + * All rights reserved + * + * The license below extends only to copyright in the software and shall + * not be construed as granting a license to any other intellectual + * property including but not limited to intellectual property relating + * to a hardware implementation of the functionality of the software + * licensed hereunder. You may use the software subject to the license + * terms below provided that you ensure that this notice is replicated + * unmodified and in its entirety in all distributions of the software, + * modified or unmodified, in source code or in binary form. + * * Copyright (c) 2002-2005 The Regents of The University of Michigan * Copyright (c) 2011 Regents of the University of California * All rights reserved. @@ -92,6 +104,42 @@ class BaseCPU : public MemObject // therefore no setCpuId() method is provided int _cpuId; + /** + * Define a base class for the CPU ports (instruction and data) + * that is refined in the subclasses. This class handles the + * common cases, i.e. the functional accesses and the status + * changes and address range queries. The default behaviour for + * both atomic and timing access is to panic and the corresponding + * subclasses have to override these methods. + */ + class CpuPort : public Port + { + public: + + /** + * Create a CPU port with a name and a structural owner. + * + * @param _name port name including the owner + * @param _name structural owner of this port + */ + CpuPort(const std::string& _name, MemObject* _owner) : + Port(_name, _owner) + { } + + protected: + + virtual bool recvTiming(PacketPtr pkt); + + virtual Tick recvAtomic(PacketPtr pkt); + + virtual void recvRetry(); + + void recvFunctional(PacketPtr pkt); + + void recvRangeChange(); + + }; + public: /** Reads this CPU's ID. */ int cpuId() { return _cpuId; } |