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Diffstat (limited to 'src/dev/arm/pl111.cc')
| -rw-r--r-- | src/dev/arm/pl111.cc | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/src/dev/arm/pl111.cc b/src/dev/arm/pl111.cc new file mode 100644 index 000000000..e78d28141 --- /dev/null +++ b/src/dev/arm/pl111.cc @@ -0,0 +1,653 @@ +/* + * Copyright (c) 2010 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. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: William Wang + */ + +#include "base/trace.hh" +#include "dev/arm/amba_device.hh" +#include "dev/arm/gic.hh" +#include "dev/arm/pl111.hh" +#include "mem/packet.hh" +#include "mem/packet_access.hh" + +using namespace AmbaDev; + +// initialize clcd registers +Pl111::Pl111(const Params *p) + : AmbaDmaDevice(p), lcdTiming0(0), lcdTiming1(0), lcdTiming2(0), + lcdTiming3(0), lcdUpbase(0), lcdLpbase(0), lcdControl(0), lcdImsc(0), + lcdRis(0), lcdMis(0), lcdIcr(0), lcdUpcurr(0), lcdLpcurr(0), + clcdCrsrCtrl(0), clcdCrsrConfig(0), clcdCrsrPalette0(0), + clcdCrsrPalette1(0), clcdCrsrXY(0), clcdCrsrClip(0), clcdCrsrImsc(0), + clcdCrsrIcr(0), clcdCrsrRis(0), clcdCrsrMis(0), clock(p->clock), + height(0), width(0), startTime(0), startAddr(0), maxAddr(0), curAddr(0), + waterMark(0), dmaPendingNum(0), readEvent(this), fillFifoEvent(this), + dmaDoneEvent(maxOutstandingDma, this), intEvent(this) +{ + pioSize = 0xFFFF; + + memset(lcdPalette, 0, sizeof(lcdPalette)); + memset(cursorImage, 0, sizeof(cursorImage)); + memset(dmaBuffer, 0, sizeof(dmaBuffer)); + memset(frameBuffer, 0, sizeof(frameBuffer)); +} + +// read registers and frame buffer +Tick +Pl111::read(PacketPtr pkt) +{ + // use a temporary data since the LCD registers are read/written with + // different size operations + + uint32_t data = 0; + + if ((pkt->getAddr()& 0xffff0000) == pioAddr) { + + assert(pkt->getAddr() >= pioAddr && + pkt->getAddr() < pioAddr + pioSize); + + Addr daddr = pkt->getAddr()&0xFFFF; + pkt->allocate(); + + DPRINTF(PL111, " read register %#x size=%d\n", daddr, pkt->getSize()); + + switch (daddr) { + case LcdTiming0: + data = lcdTiming0; + break; + case LcdTiming1: + data = lcdTiming1; + break; + case LcdTiming2: + data = lcdTiming2; + break; + case LcdTiming3: + data = lcdTiming3; + break; + case LcdUpBase: + data = lcdUpbase; + break; + case LcdLpBase: + data = lcdLpbase; + break; + case LcdControl: + data = lcdControl; + break; + case LcdImsc: + warn("LCD interrupt set/clear function not supported\n"); + data = lcdImsc; + break; + case LcdRis: + warn("LCD Raw interrupt status function not supported\n"); + data = lcdRis; + break; + case LcdMis: + warn("LCD Masked interrupt status function not supported\n"); + data = lcdMis; + break; + case LcdIcr: + panic("LCD register at offset %#x is Write-Only\n", daddr); + break; + case LcdUpCurr: + data = lcdUpcurr; + break; + case LcdLpCurr: + data = lcdLpcurr; + break; + case ClcdCrsrCtrl: + data = clcdCrsrCtrl; + break; + case ClcdCrsrConfig: + data = clcdCrsrConfig; + break; + case ClcdCrsrPalette0: + data = clcdCrsrPalette0; + break; + case ClcdCrsrPalette1: + data = clcdCrsrPalette1; + break; + case ClcdCrsrXY: + data = clcdCrsrXY; + break; + case ClcdCrsrClip: + data = clcdCrsrClip; + break; + case ClcdCrsrImsc: + data = clcdCrsrImsc; + break; + case ClcdCrsrIcr: + panic("CLCD register at offset %#x is Write-Only\n", daddr); + break; + case ClcdCrsrRis: + data = clcdCrsrRis; + break; + case ClcdCrsrMis: + data = clcdCrsrMis; + break; + default: + if (AmbaDev::readId(pkt, AMBA_ID, pioAddr)) { + // Hack for variable size accesses + data = pkt->get<uint32_t>(); + break; + } else if (daddr >= CrsrImage && daddr <= 0xBFC) { + // CURSOR IMAGE + int index; + index = (daddr - CrsrImage) >> 2; + data= cursorImage[index]; + break; + } else if (daddr >= LcdPalette && daddr <= 0x3FC) { + // LCD Palette + int index; + index = (daddr - LcdPalette) >> 2; + data = lcdPalette[index]; + break; + } else { + panic("Tried to read CLCD register at offset %#x that \ + doesn't exist\n", daddr); + break; + } + } + } + + switch(pkt->getSize()) { + case 1: + pkt->set<uint8_t>(data); + break; + case 2: + pkt->set<uint16_t>(data); + break; + case 4: + pkt->set<uint32_t>(data); + break; + default: + panic("CLCD controller read size too big?\n"); + break; + } + + pkt->makeAtomicResponse(); + return pioDelay; +} + +// write registers and frame buffer +Tick +Pl111::write(PacketPtr pkt) +{ + // use a temporary data since the LCD registers are read/written with + // different size operations + // + uint32_t data = 0; + + switch(pkt->getSize()) { + case 1: + data = pkt->get<uint8_t>(); + break; + case 2: + data = pkt->get<uint16_t>(); + break; + case 4: + data = pkt->get<uint32_t>(); + break; + default: + panic("PL111 CLCD controller write size too big?\n"); + break; + } + + if ((pkt->getAddr()& 0xffff0000) == pioAddr) { + + assert(pkt->getAddr() >= pioAddr && + pkt->getAddr() < pioAddr + pioSize); + + Addr daddr = pkt->getAddr() - pioAddr; + + DPRINTF(PL111, " write register %#x value %#x size=%d\n", daddr, + pkt->get<uint8_t>(), pkt->getSize()); + + switch (daddr) { + case LcdTiming0: + lcdTiming0 = data; + // width = 16 * (PPL+1) + width = (lcdTiming0.ppl + 1) << 4; + break; + case LcdTiming1: + lcdTiming1 = data; + // height = LPP + 1 + height = (lcdTiming1.lpp) + 1; + break; + case LcdTiming2: + lcdTiming2 = data; + break; + case LcdTiming3: + lcdTiming3 = data; + break; + case LcdUpBase: + lcdUpbase = data; + break; + case LcdLpBase: + warn("LCD dual screen mode not supported\n"); + lcdLpbase = data; + break; + case LcdControl: + int old_lcdpwr; + old_lcdpwr = lcdControl.lcdpwr; + lcdControl = data; + // LCD power enable + if (lcdControl.lcdpwr&&!old_lcdpwr) { + DPRINTF(PL111, " lcd size: height %d width %d\n", height, width); + waterMark = lcdControl.watermark ? 8 : 4; + readFramebuffer(); + } + break; + case LcdImsc: + warn("LCD interrupt mask set/clear not supported\n"); + lcdImsc = data; + break; + case LcdRis: + warn("LCD register at offset %#x is Read-Only\n", daddr); + break; + case LcdMis: + warn("LCD register at offset %#x is Read-Only\n", daddr); + break; + case LcdIcr: + warn("LCD interrupt clear not supported\n"); + lcdIcr = data; + break; + case LcdUpCurr: + warn("LCD register at offset %#x is Read-Only\n", daddr); + break; + case LcdLpCurr: + warn("LCD register at offset %#x is Read-Only\n", daddr); + break; + case ClcdCrsrCtrl: + clcdCrsrCtrl = data; + break; + case ClcdCrsrConfig: + clcdCrsrConfig = data; + break; + case ClcdCrsrPalette0: + clcdCrsrPalette0 = data; + break; + case ClcdCrsrPalette1: + clcdCrsrPalette1 = data; + break; + case ClcdCrsrXY: + clcdCrsrXY = data; + break; + case ClcdCrsrClip: + clcdCrsrClip = data; + break; + case ClcdCrsrImsc: + clcdCrsrImsc = data; + break; + case ClcdCrsrIcr: + clcdCrsrIcr = data; + break; + case ClcdCrsrRis: + warn("CLCD register at offset %#x is Read-Only\n", daddr); + break; + case ClcdCrsrMis: + warn("CLCD register at offset %#x is Read-Only\n", daddr); + break; + default: + if (daddr >= CrsrImage && daddr <= 0xBFC) { + // CURSOR IMAGE + int index; + index = (daddr - CrsrImage) >> 2; + cursorImage[index] = data; + break; + } else if (daddr >= LcdPalette && daddr <= 0x3FC) { + // LCD Palette + int index; + index = (daddr - LcdPalette) >> 2; + lcdPalette[index] = data; + break; + } else { + panic("Tried to write PL111 register at offset %#x that \ + doesn't exist\n", daddr); + break; + } + } + } + + pkt->makeAtomicResponse(); + return pioDelay; +} + +void +Pl111::readFramebuffer() +{ + // initialization for dma read from frame buffer to dma buffer + uint32_t length = height*width; + if (startAddr != lcdUpbase) { + startAddr = lcdUpbase; + } + curAddr = 0; + startTime = curTick; + maxAddr = static_cast<Addr>(length*sizeof(uint32_t)); + dmaPendingNum =0 ; + + fillFifo(); +} + +void +Pl111::fillFifo() +{ + while ((dmaPendingNum < maxOutstandingDma) && (maxAddr >= curAddr + dmaSize )) { + // concurrent dma reads need different dma done events + // due to assertion in scheduling state + ++dmaPendingNum; + DPRINTF(PL111, " ++ DMA pending number %d read addr %#x\n", + dmaPendingNum, curAddr); + assert(!dmaDoneEvent[dmaPendingNum-1].scheduled()); + dmaRead(curAddr + startAddr, dmaSize, &dmaDoneEvent[dmaPendingNum-1], + curAddr + dmaBuffer); + curAddr += dmaSize; + } +} + +void +Pl111::dmaDone() +{ + Tick maxFrameTime = lcdTiming2.cpl*height*clock; + + --dmaPendingNum; + + DPRINTF(PL111, " -- DMA pending number %d\n", dmaPendingNum); + + if (maxAddr == curAddr && !dmaPendingNum) { + if ((curTick - startTime) > maxFrameTime) + warn("CLCD controller buffer underrun, took %d cycles when should" + " have taken %d\n", curTick - startTime, maxFrameTime); + + // double buffering so the vnc server doesn't see a tear in the screen + memcpy(frameBuffer, dmaBuffer, maxAddr); + assert(!readEvent.scheduled()); + + DPRINTF(PL111, "-- write out frame buffer into bmp\n"); + writeBMP(frameBuffer); + + DPRINTF(PL111, "-- schedule next dma read event at %d tick \n", + maxFrameTime + curTick); + schedule(readEvent, nextCycle(startTime + maxFrameTime)); + } + + if (dmaPendingNum > (maxOutstandingDma - waterMark)) + return; + + if (!fillFifoEvent.scheduled()) + schedule(fillFifoEvent, nextCycle()); + +} + +Tick +Pl111::nextCycle() +{ + Tick nextTick = curTick + clock - 1; + nextTick -= nextTick%clock; + return nextTick; +} + +Tick +Pl111::nextCycle(Tick beginTick) +{ + Tick nextTick = beginTick; + if (nextTick%clock!=0) + nextTick = nextTick - (nextTick%clock) + clock; + + assert(nextTick >= curTick); + return nextTick; +} + +// write out the frame buffer into a bitmap file +void +Pl111::writeBMP(uint32_t* frameBuffer) +{ + fstream pic; + + // write out bmp head + std::string filename = "./m5out/frameBuffer.bmp"; + pic.open(filename.c_str(), ios::out|ios::binary); + Bitmap bm(pic, height, width); + + DPRINTF(PL111, "-- write out data into bmp\n"); + + // write out frame buffer data + for (int i = height -1; i >= 0; --i) { + for (int j = 0; j< width; ++j) { + uint32_t pixel = frameBuffer[i*width + j]; + pic.write(reinterpret_cast<char*>(&pixel), + sizeof(uint32_t)); + DPRINTF(PL111, " write pixel data %#x at addr %#x\n", + pixel, i*width + j); + } + } + + pic.close(); +} + +void +Pl111::serialize(std::ostream &os) +{ + DPRINTF(PL111, "Serializing ARM PL111\n"); + + uint32_t lcdTiming0_serial = lcdTiming0; + SERIALIZE_SCALAR(lcdTiming0_serial); + + uint32_t lcdTiming1_serial = lcdTiming1; + SERIALIZE_SCALAR(lcdTiming1_serial); + + uint32_t lcdTiming2_serial = lcdTiming2; + SERIALIZE_SCALAR(lcdTiming2_serial); + + uint32_t lcdTiming3_serial = lcdTiming3; + SERIALIZE_SCALAR(lcdTiming3_serial); + + SERIALIZE_SCALAR(lcdUpbase); + SERIALIZE_SCALAR(lcdLpbase); + + uint32_t lcdControl_serial = lcdControl; + SERIALIZE_SCALAR(lcdControl_serial); + + uint8_t lcdImsc_serial = lcdImsc; + SERIALIZE_SCALAR(lcdImsc_serial); + + uint8_t lcdRis_serial = lcdRis; + SERIALIZE_SCALAR(lcdRis_serial); + + uint8_t lcdMis_serial = lcdMis; + SERIALIZE_SCALAR(lcdMis_serial); + + uint8_t lcdIcr_serial = lcdIcr; + SERIALIZE_SCALAR(lcdIcr_serial); + + SERIALIZE_ARRAY(lcdPalette, LcdPaletteSize); + SERIALIZE_ARRAY(cursorImage, CrsrImageSize); + + SERIALIZE_SCALAR(clcdCrsrCtrl); + SERIALIZE_SCALAR(clcdCrsrConfig); + SERIALIZE_SCALAR(clcdCrsrPalette0); + SERIALIZE_SCALAR(clcdCrsrPalette1); + SERIALIZE_SCALAR(clcdCrsrXY); + SERIALIZE_SCALAR(clcdCrsrClip); + + uint8_t clcdCrsrImsc_serial = clcdCrsrImsc; + SERIALIZE_SCALAR(clcdCrsrImsc_serial); + + uint8_t clcdCrsrIcr_serial = clcdCrsrIcr; + SERIALIZE_SCALAR(clcdCrsrIcr_serial); + + uint8_t clcdCrsrRis_serial = clcdCrsrRis; + SERIALIZE_SCALAR(clcdCrsrRis_serial); + + uint8_t clcdCrsrMis_serial = clcdCrsrMis; + SERIALIZE_SCALAR(clcdCrsrMis_serial); + + SERIALIZE_SCALAR(clock); + SERIALIZE_SCALAR(height); + SERIALIZE_SCALAR(width); + + SERIALIZE_ARRAY(dmaBuffer, height*width); + SERIALIZE_ARRAY(frameBuffer, height*width); + SERIALIZE_SCALAR(startTime); + SERIALIZE_SCALAR(startAddr); + SERIALIZE_SCALAR(maxAddr); + SERIALIZE_SCALAR(curAddr); + SERIALIZE_SCALAR(waterMark); + SERIALIZE_SCALAR(dmaPendingNum); +} + +void +Pl111::unserialize(Checkpoint *cp, const std::string §ion) +{ + DPRINTF(PL111, "Unserializing ARM PL111\n"); + + uint32_t lcdTiming0_serial; + UNSERIALIZE_SCALAR(lcdTiming0_serial); + lcdTiming0 = lcdTiming0_serial; + + uint32_t lcdTiming1_serial; + UNSERIALIZE_SCALAR(lcdTiming1_serial); + lcdTiming1 = lcdTiming1_serial; + + uint32_t lcdTiming2_serial; + UNSERIALIZE_SCALAR(lcdTiming2_serial); + lcdTiming2 = lcdTiming2_serial; + + uint32_t lcdTiming3_serial; + UNSERIALIZE_SCALAR(lcdTiming3_serial); + lcdTiming3 = lcdTiming3_serial; + + UNSERIALIZE_SCALAR(lcdUpbase); + UNSERIALIZE_SCALAR(lcdLpbase); + + uint32_t lcdControl_serial; + UNSERIALIZE_SCALAR(lcdControl_serial); + lcdControl = lcdControl_serial; + + uint8_t lcdImsc_serial; + UNSERIALIZE_SCALAR(lcdImsc_serial); + lcdImsc = lcdImsc_serial; + + uint8_t lcdRis_serial; + UNSERIALIZE_SCALAR(lcdRis_serial); + lcdRis = lcdRis_serial; + + uint8_t lcdMis_serial; + UNSERIALIZE_SCALAR(lcdMis_serial); + lcdMis = lcdMis_serial; + + uint8_t lcdIcr_serial; + UNSERIALIZE_SCALAR(lcdIcr_serial); + lcdIcr = lcdIcr_serial; + + UNSERIALIZE_ARRAY(lcdPalette, LcdPaletteSize); + UNSERIALIZE_ARRAY(cursorImage, CrsrImageSize); + + UNSERIALIZE_SCALAR(clcdCrsrCtrl); + UNSERIALIZE_SCALAR(clcdCrsrConfig); + UNSERIALIZE_SCALAR(clcdCrsrPalette0); + UNSERIALIZE_SCALAR(clcdCrsrPalette1); + UNSERIALIZE_SCALAR(clcdCrsrXY); + UNSERIALIZE_SCALAR(clcdCrsrClip); + + uint8_t clcdCrsrImsc_serial; + UNSERIALIZE_SCALAR(clcdCrsrImsc_serial); + clcdCrsrImsc = clcdCrsrImsc_serial; + + uint8_t clcdCrsrIcr_serial; + UNSERIALIZE_SCALAR(clcdCrsrIcr_serial); + clcdCrsrIcr = clcdCrsrIcr_serial; + + uint8_t clcdCrsrRis_serial; + UNSERIALIZE_SCALAR(clcdCrsrRis_serial); + clcdCrsrRis = clcdCrsrRis_serial; + + uint8_t clcdCrsrMis_serial; + UNSERIALIZE_SCALAR(clcdCrsrMis_serial); + clcdCrsrMis = clcdCrsrMis_serial; + + UNSERIALIZE_SCALAR(clock); + UNSERIALIZE_SCALAR(height); + UNSERIALIZE_SCALAR(width); + + UNSERIALIZE_ARRAY(dmaBuffer, height*width); + UNSERIALIZE_ARRAY(frameBuffer, height*width); + UNSERIALIZE_SCALAR(startTime); + UNSERIALIZE_SCALAR(startAddr); + UNSERIALIZE_SCALAR(maxAddr); + UNSERIALIZE_SCALAR(curAddr); + UNSERIALIZE_SCALAR(waterMark); + UNSERIALIZE_SCALAR(dmaPendingNum); +} + +void +Pl111::generateInterrupt() +{ + DPRINTF(PL111, "Generate Interrupt: lcdImsc=0x%x lcdRis=0x%x lcdMis=0x%x\n", + lcdImsc, lcdRis, lcdMis); + lcdMis = lcdImsc & lcdRis; + + if (lcdMis.ffufie || lcdMis.nbupie || lcdMis.vtcpie || lcdMis.ahmeie) { + gic->sendInt(intNum); + DPRINTF(PL111, " -- Generated\n"); + } +} + +void +Pl111::addressRanges(AddrRangeList& range_list) +{ + range_list.clear(); + range_list.push_back(RangeSize(pioAddr, pioSize)); +} + +Pl111 * +Pl111Params::create() +{ + return new Pl111(this); +} + +// bitmap class ctor +Bitmap::Bitmap(std::fstream& bmp, uint16_t h, uint16_t w) +{ + Magic magic = {{'B','M'}}; + Header header = {sizeof(Color)*w*h , 0, 0, 54}; + Info info = {sizeof(Info), w, h, 1, sizeof(Color)*8, 0, + ( sizeof(Color) *(w*h) ), 1, 1, 0, 0}; + + bmp.write(reinterpret_cast<char*>(&magic), sizeof(magic)); + bmp.write(reinterpret_cast<char*>(&header), sizeof(header)); + bmp.write(reinterpret_cast<char*>(&info), sizeof(info)); +} |