dram_ctrl.cc (13784:1941dc118243) dram_ctrl.cc (13834:1a7c647cbeac)
1/*
2 * Copyright (c) 2010-2018 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

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639 unsigned size = pkt->getSize();
640 unsigned offset = pkt->getAddr() & (burstSize - 1);
641 unsigned int dram_pkt_count = divCeil(offset + size, burstSize);
642
643 // run the QoS scheduler and assign a QoS priority value to the packet
644 qosSchedule( { &readQueue, &writeQueue }, burstSize, pkt);
645
646 // check local buffers and do not accept if full
1/*
2 * Copyright (c) 2010-2018 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

--- 630 unchanged lines hidden (view full) ---

639 unsigned size = pkt->getSize();
640 unsigned offset = pkt->getAddr() & (burstSize - 1);
641 unsigned int dram_pkt_count = divCeil(offset + size, burstSize);
642
643 // run the QoS scheduler and assign a QoS priority value to the packet
644 qosSchedule( { &readQueue, &writeQueue }, burstSize, pkt);
645
646 // check local buffers and do not accept if full
647 if (pkt->isRead()) {
647 if (pkt->isWrite()) {
648 assert(size != 0);
648 assert(size != 0);
649 if (readQueueFull(dram_pkt_count)) {
650 DPRINTF(DRAM, "Read queue full, not accepting\n");
651 // remember that we have to retry this port
652 retryRdReq = true;
653 numRdRetry++;
654 return false;
655 } else {
656 addToReadQueue(pkt, dram_pkt_count);
657 readReqs++;
658 bytesReadSys += size;
659 }
660 } else {
661 assert(pkt->isWrite());
662 assert(size != 0);
663 if (writeQueueFull(dram_pkt_count)) {
664 DPRINTF(DRAM, "Write queue full, not accepting\n");
665 // remember that we have to retry this port
666 retryWrReq = true;
667 numWrRetry++;
668 return false;
669 } else {
670 addToWriteQueue(pkt, dram_pkt_count);
671 writeReqs++;
672 bytesWrittenSys += size;
673 }
649 if (writeQueueFull(dram_pkt_count)) {
650 DPRINTF(DRAM, "Write queue full, not accepting\n");
651 // remember that we have to retry this port
652 retryWrReq = true;
653 numWrRetry++;
654 return false;
655 } else {
656 addToWriteQueue(pkt, dram_pkt_count);
657 writeReqs++;
658 bytesWrittenSys += size;
659 }
660 } else {
661 assert(pkt->isRead());
662 assert(size != 0);
663 if (readQueueFull(dram_pkt_count)) {
664 DPRINTF(DRAM, "Read queue full, not accepting\n");
665 // remember that we have to retry this port
666 retryRdReq = true;
667 numRdRetry++;
668 return false;
669 } else {
670 addToReadQueue(pkt, dram_pkt_count);
671 readReqs++;
672 bytesReadSys += size;
673 }
674 }
675
676 return true;
677}
678
679void
680DRAMCtrl::processRespondEvent()
681{

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675
676 return true;
677}
678
679void
680DRAMCtrl::processRespondEvent()
681{

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