diff options
Diffstat (limited to 'src/mem/packet.hh')
| -rw-r--r-- | src/mem/packet.hh | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh index ce5748c24..e49fa67b8 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -1,4 +1,16 @@ /* + * Copyright (c) 2012 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) 2006 The Regents of The University of Michigan * Copyright (c) 2010 Advanced Micro Devices, Inc. * All rights reserved. @@ -317,10 +329,6 @@ class Packet : public FastAlloc, public Printable /// The time at which the first chunk of the packet will be transmitted Tick firstWordTime; - /// The special destination address indicating that the packet - /// should be routed based on its address. - static const NodeID Broadcast = -1; - /** * A virtual base opaque structure used to hold state associated * with the packet but specific to the sending device (e.g., an @@ -478,6 +486,8 @@ class Packet : public FastAlloc, public Printable NodeID getDest() const { assert(flags.isSet(VALID_DST)); return dest; } /// Accessor function to set the destination index of the packet. void setDest(NodeID _dest) { dest = _dest; flags.set(VALID_DST); } + /// Reset destination field, e.g. to turn a response into a request again. + void clearDest() { flags.clear(VALID_DST); } Addr getAddr() const { assert(flags.isSet(VALID_ADDR)); return addr; } unsigned getSize() const { assert(flags.isSet(VALID_SIZE)); return size; } @@ -513,9 +523,9 @@ class Packet : public FastAlloc, public Printable * not be valid. The command and destination addresses must be * supplied. */ - Packet(Request *_req, MemCmd _cmd, NodeID _dest) - : flags(VALID_DST), cmd(_cmd), req(_req), data(NULL), - dest(_dest), bytesValidStart(0), bytesValidEnd(0), + Packet(Request *_req, MemCmd _cmd) + : cmd(_cmd), req(_req), data(NULL), + bytesValidStart(0), bytesValidEnd(0), time(curTick()), senderState(NULL) { if (req->hasPaddr()) { @@ -533,9 +543,9 @@ class Packet : public FastAlloc, public Printable * a request that is for a whole block, not the address from the * req. this allows for overriding the size/addr of the req. */ - Packet(Request *_req, MemCmd _cmd, NodeID _dest, int _blkSize) - : flags(VALID_DST), cmd(_cmd), req(_req), data(NULL), - dest(_dest), bytesValidStart(0), bytesValidEnd(0), + Packet(Request *_req, MemCmd _cmd, int _blkSize) + : cmd(_cmd), req(_req), data(NULL), + bytesValidStart(0), bytesValidEnd(0), time(curTick()), senderState(NULL) { if (req->hasPaddr()) { @@ -659,7 +669,7 @@ class Packet : public FastAlloc, public Printable assert(wasNacked()); cmd = origCmd; assert(needsResponse()); - setDest(Broadcast); + clearDest(); } void |