noncoherent_xbar.cc (12778:ca8c50112a66) noncoherent_xbar.cc (12780:14937f6495b4)
1/*
1/*
2 * Copyright (c) 2011-2015 ARM Limited
2 * Copyright (c) 2011-2015, 2018 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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103{
104 // determine the source port based on the id
105 SlavePort *src_port = slavePorts[slave_port_id];
106
107 // we should never see express snoops on a non-coherent crossbar
108 assert(!pkt->isExpressSnoop());
109
110 // determine the destination based on the address
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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103{
104 // determine the source port based on the id
105 SlavePort *src_port = slavePorts[slave_port_id];
106
107 // we should never see express snoops on a non-coherent crossbar
108 assert(!pkt->isExpressSnoop());
109
110 // determine the destination based on the address
111 PortID master_port_id = findPort(pkt->getAddr());
111 AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
112 PortID master_port_id = findPort(addr_range);
112
113 // test if the layer should be considered occupied for the current
114 // port
115 if (!reqLayers[master_port_id]->tryTiming(src_port)) {
116 DPRINTF(NoncoherentXBar, "recvTimingReq: src %s %s 0x%x BUSY\n",
117 src_port->name(), pkt->cmdString(), pkt->getAddr());
118 return false;
119 }

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248 DPRINTF(NoncoherentXBar, "recvAtomic: packet src %s addr 0x%x cmd %s\n",
249 slavePorts[slave_port_id]->name(), pkt->getAddr(),
250 pkt->cmdString());
251
252 unsigned int pkt_size = pkt->hasData() ? pkt->getSize() : 0;
253 unsigned int pkt_cmd = pkt->cmdToIndex();
254
255 // determine the destination port
113
114 // test if the layer should be considered occupied for the current
115 // port
116 if (!reqLayers[master_port_id]->tryTiming(src_port)) {
117 DPRINTF(NoncoherentXBar, "recvTimingReq: src %s %s 0x%x BUSY\n",
118 src_port->name(), pkt->cmdString(), pkt->getAddr());
119 return false;
120 }

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249 DPRINTF(NoncoherentXBar, "recvAtomic: packet src %s addr 0x%x cmd %s\n",
250 slavePorts[slave_port_id]->name(), pkt->getAddr(),
251 pkt->cmdString());
252
253 unsigned int pkt_size = pkt->hasData() ? pkt->getSize() : 0;
254 unsigned int pkt_cmd = pkt->cmdToIndex();
255
256 // determine the destination port
256 PortID master_port_id = findPort(pkt->getAddr());
257 AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
258 PortID master_port_id = findPort(addr_range);
257
258 // stats updates for the request
259 pktCount[slave_port_id][master_port_id]++;
260 pktSize[slave_port_id][master_port_id] += pkt_size;
261 transDist[pkt_cmd]++;
262
263 // forward the request to the appropriate destination
264 Tick response_latency = masterPorts[master_port_id]->sendAtomic(pkt);

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298 if (p->checkFunctional(pkt)) {
299 if (pkt->needsResponse())
300 pkt->makeResponse();
301 return;
302 }
303 }
304
305 // determine the destination port
259
260 // stats updates for the request
261 pktCount[slave_port_id][master_port_id]++;
262 pktSize[slave_port_id][master_port_id] += pkt_size;
263 transDist[pkt_cmd]++;
264
265 // forward the request to the appropriate destination
266 Tick response_latency = masterPorts[master_port_id]->sendAtomic(pkt);

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300 if (p->checkFunctional(pkt)) {
301 if (pkt->needsResponse())
302 pkt->makeResponse();
303 return;
304 }
305 }
306
307 // determine the destination port
306 PortID dest_id = findPort(pkt->getAddr());
308 AddrRange addr_range = RangeSize(pkt->getAddr(), pkt->getSize());
309 PortID dest_id = findPort(addr_range);
307
308 // forward the request to the appropriate destination
309 masterPorts[dest_id]->sendFunctional(pkt);
310}
311
312NoncoherentXBar*
313NoncoherentXBarParams::create()
314{

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311 // forward the request to the appropriate destination
312 masterPorts[dest_id]->sendFunctional(pkt);
313}
314
315NoncoherentXBar*
316NoncoherentXBarParams::create()
317{

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