ufs_device.cc (11179:8e240cd8132a) ufs_device.cc (11321:02e930db812d)
1/*
2 * Copyright (c) 2013-2015 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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688 * read from the flashdisk
689 */
690
691void
692UFSHostDevice::UFSSCSIDevice::readFlash(uint8_t* readaddr, uint64_t offset,
693 uint32_t size)
694{
695 /** read from image, and get to memory */
1/*
2 * Copyright (c) 2013-2015 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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688 * read from the flashdisk
689 */
690
691void
692UFSHostDevice::UFSSCSIDevice::readFlash(uint8_t* readaddr, uint64_t offset,
693 uint32_t size)
694{
695 /** read from image, and get to memory */
696 for(int count = 0; count < (size / SectorSize); count++)
696 for (int count = 0; count < (size / SectorSize); count++)
697 flashDisk->read(&(readaddr[SectorSize*count]), (offset /
698 SectorSize) + count);
699}
700
701/**
702 * Write to the flashdisk
703 */
704
705void
706UFSHostDevice::UFSSCSIDevice::writeFlash(uint8_t* writeaddr, uint64_t offset,
707 uint32_t size)
708{
709 /** Get from fifo and write to image*/
697 flashDisk->read(&(readaddr[SectorSize*count]), (offset /
698 SectorSize) + count);
699}
700
701/**
702 * Write to the flashdisk
703 */
704
705void
706UFSHostDevice::UFSSCSIDevice::writeFlash(uint8_t* writeaddr, uint64_t offset,
707 uint32_t size)
708{
709 /** Get from fifo and write to image*/
710 for(int count = 0; count < (size / SectorSize); count++)
710 for (int count = 0; count < (size / SectorSize); count++)
711 flashDisk->write(&(writeaddr[SectorSize * count]),
712 (offset / SectorSize) + count);
713}
714
715/**
716 * Constructor for the UFS Host device
717 */
718

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740 lunAvail);
741 UFSDevice.resize(lunAvail);
742
743 transferDoneCallback = new MakeCallback<UFSHostDevice,
744 &UFSHostDevice::LUNSignal>(this);
745 memReadCallback = new MakeCallback<UFSHostDevice,
746 &UFSHostDevice::readCallback>(this);
747
711 flashDisk->write(&(writeaddr[SectorSize * count]),
712 (offset / SectorSize) + count);
713}
714
715/**
716 * Constructor for the UFS Host device
717 */
718

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740 lunAvail);
741 UFSDevice.resize(lunAvail);
742
743 transferDoneCallback = new MakeCallback<UFSHostDevice,
744 &UFSHostDevice::LUNSignal>(this);
745 memReadCallback = new MakeCallback<UFSHostDevice,
746 &UFSHostDevice::readCallback>(this);
747
748 for(int count = 0; count < lunAvail; count++) {
748 for (int count = 0; count < lunAvail; count++) {
749 UFSDevice[count] = new UFSSCSIDevice(p, count, transferDoneCallback,
750 memReadCallback);
751 }
752
753 if (UFSSlots > 31)
754 warn("UFSSlots = %d, this will results in %d command slots",
755 UFSSlots, (UFSSlots & 0x1F));
756

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1667 * out who it was, and calls transferDone.
1668 */
1669void
1670UFSHostDevice::LUNSignal()
1671{
1672 uint8_t this_lun = 0;
1673
1674 //while we haven't found the right lun, keep searching
749 UFSDevice[count] = new UFSSCSIDevice(p, count, transferDoneCallback,
750 memReadCallback);
751 }
752
753 if (UFSSlots > 31)
754 warn("UFSSlots = %d, this will results in %d command slots",
755 UFSSlots, (UFSSlots & 0x1F));
756

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1667 * out who it was, and calls transferDone.
1668 */
1669void
1670UFSHostDevice::LUNSignal()
1671{
1672 uint8_t this_lun = 0;
1673
1674 //while we haven't found the right lun, keep searching
1675 while((this_lun < lunAvail) && !UFSDevice[this_lun]->finishedCommand())
1675 while ((this_lun < lunAvail) && !UFSDevice[this_lun]->finishedCommand())
1676 ++this_lun;
1677
1678 if (this_lun < lunAvail) {
1679 //Clear signal.
1680 UFSDevice[this_lun]->clearSignal();
1681 //found it; call transferDone
1682 transferDone(UFSDevice[this_lun]->transferInfo.responseStartAddr,
1683 UFSDevice[this_lun]->transferInfo.reqPos,

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1791
1792 /**Garbage collection; sort out the allocated UTP descriptor*/
1793 if (garbage.size() > 0) {
1794 delete garbage.front();
1795 garbage.pop_front();
1796 }
1797
1798 /**done, generate interrupt if we havent got one already*/
1676 ++this_lun;
1677
1678 if (this_lun < lunAvail) {
1679 //Clear signal.
1680 UFSDevice[this_lun]->clearSignal();
1681 //found it; call transferDone
1682 transferDone(UFSDevice[this_lun]->transferInfo.responseStartAddr,
1683 UFSDevice[this_lun]->transferInfo.reqPos,

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1791
1792 /**Garbage collection; sort out the allocated UTP descriptor*/
1793 if (garbage.size() > 0) {
1794 delete garbage.front();
1795 garbage.pop_front();
1796 }
1797
1798 /**done, generate interrupt if we havent got one already*/
1799 if(!(UFSHCIMem.ORInterruptStatus & 0x01)) {
1799 if (!(UFSHCIMem.ORInterruptStatus & 0x01)) {
1800 UFSHCIMem.ORInterruptStatus |= UTPTransferREQCOMPL;
1801 generateInterrupt();
1802 }
1803
1804
1800 UFSHCIMem.ORInterruptStatus |= UTPTransferREQCOMPL;
1801 generateInterrupt();
1802 }
1803
1804
1805 if(!readDoneEvent.empty()) {
1805 if (!readDoneEvent.empty()) {
1806 readDoneEvent.pop_front();
1807 }
1808}
1809
1810/**
1811 * set interrupt and sort out the doorbell register.
1812 */
1813

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1879{
1880 DPRINTF(UFSHostDevice, "Write transaction Start: 0x%8x; Size: %d\n",
1881 start, size);
1882
1883 /**check whether transfer is all the way to the flash*/
1884 if (toDisk) {
1885 ++writePendingNum;
1886
1806 readDoneEvent.pop_front();
1807 }
1808}
1809
1810/**
1811 * set interrupt and sort out the doorbell register.
1812 */
1813

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1879{
1880 DPRINTF(UFSHostDevice, "Write transaction Start: 0x%8x; Size: %d\n",
1881 start, size);
1882
1883 /**check whether transfer is all the way to the flash*/
1884 if (toDisk) {
1885 ++writePendingNum;
1886
1887 while(!writeDoneEvent.empty() && (writeDoneEvent.front().when()
1887 while (!writeDoneEvent.empty() && (writeDoneEvent.front().when()
1888 < curTick()))
1889 writeDoneEvent.pop_front();
1890
1891 writeDoneEvent.push_back(this);
1892 assert(!writeDoneEvent.back().scheduled());
1893
1894 /**destination is an offset here since we are writing to a disk*/
1895 struct transferInfo new_transfer;

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2238
2239void
2240UFSHostDevice::readCallback()
2241{
2242 DPRINTF(UFSHostDevice, "Read Callback\n");
2243 uint8_t this_lun = 0;
2244
2245 //while we haven't found the right lun, keep searching
1888 < curTick()))
1889 writeDoneEvent.pop_front();
1890
1891 writeDoneEvent.push_back(this);
1892 assert(!writeDoneEvent.back().scheduled());
1893
1894 /**destination is an offset here since we are writing to a disk*/
1895 struct transferInfo new_transfer;

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2238
2239void
2240UFSHostDevice::readCallback()
2241{
2242 DPRINTF(UFSHostDevice, "Read Callback\n");
2243 uint8_t this_lun = 0;
2244
2245 //while we haven't found the right lun, keep searching
2246 while((this_lun < lunAvail) && !UFSDevice[this_lun]->finishedRead())
2246 while ((this_lun < lunAvail) && !UFSDevice[this_lun]->finishedRead())
2247 ++this_lun;
2248
2249 DPRINTF(UFSHostDevice, "Found LUN %d messages pending for clean: %d\n",
2250 this_lun, SSDReadPending.size());
2251
2252 if (this_lun < lunAvail) {
2253 //Clear signal.
2254 UFSDevice[this_lun]->clearReadSignal();

--- 97 unchanged lines hidden --- 		2247 ++this_lun;
2248
2249 DPRINTF(UFSHostDevice, "Found LUN %d messages pending for clean: %d\n",
2250 this_lun, SSDReadPending.size());
2251
2252 if (this_lun < lunAvail) {
2253 //Clear signal.
2254 UFSDevice[this_lun]->clearReadSignal();

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