dev/pci/copy_engine.cc

94         cr.status.dma_transfer_status(3);
95         cr.descChainAddr = 0;
96         cr.completionAddr = 0;
141     if (cr.command.start_dma()) {
143         cr.status.dma_transfer_status(0);
145         fetchAddress = cr.descChainAddr;
147             fetchDescriptor(cr.descChainAddr);
148     } else if (cr.command.append_dma()) {
155     } else if (cr.command.reset_dma()) {
159             cr.status.dma_transfer_status(3);
162     } else if (cr.command.resume_dma() || cr.command.abort_dma() ||
163             cr.command.suspend_dma())
165     cr.command(0);
247         pkt->setLE<uint16_t>(cr.ctrl());
248         cr.ctrl.in_use(1);
252         pkt->setLE<uint64_t>(cr.status() | (busy ? 0 : 1));
257             pkt->setLE<uint64_t>(cr.descChainAddr);
259             pkt->setLE<uint32_t>(bits(cr.descChainAddr,0,31));
263         pkt->setLE<uint32_t>(bits(cr.descChainAddr,32,63));
267         pkt->setLE<uint32_t>(cr.command());
272             pkt->setLE<uint64_t>(cr.completionAddr);
274             pkt->setLE<uint32_t>(bits(cr.completionAddr,0,31));
278         pkt->setLE<uint32_t>(bits(cr.completionAddr,32,63));
282         pkt->setLE<uint32_t>(cr.error());
376         old_int_disable = cr.ctrl.interrupt_disable();
377         cr.ctrl(pkt->getLE<uint16_t>());
378         if (cr.ctrl.interrupt_disable())
379             cr.ctrl.interrupt_disable(0);
381             cr.ctrl.interrupt_disable(old_int_disable);
391             cr.descChainAddr = pkt->getLE<uint64_t>();
393             cr.descChainAddr =  (uint64_t)pkt->getLE<uint32_t>() |
394                 (cr.descChainAddr & ~mask(32));
395         DPRINTF(DMACopyEngine, "Chain Address %x\n", cr.descChainAddr);
399         cr.descChainAddr =  ((uint64_t)pkt->getLE<uint32_t>() << 32) |
400             (cr.descChainAddr & mask(32));
401         DPRINTF(DMACopyEngine, "Chain Address %x\n", cr.descChainAddr);
405         cr.command(pkt->getLE<uint8_t>());
411             cr.completionAddr = pkt->getLE<uint64_t>();
413             cr.completionAddr =  pkt->getLE<uint32_t>() |
414                 (cr.completionAddr & ~mask(32));
418         cr.completionAddr =  ((uint64_t)pkt->getLE<uint32_t>() <<32) |
419             (cr.completionAddr & mask(32));
423         cr.error(~pkt->getLE<uint32_t>() & cr.error());
543     cr.status.compl_desc_addr(lastDescriptorAddr >> 6);
544     completionDataReg = cr.status() | 1;
596             completionDataReg, cr.completionAddr,
597             ce->pciToDma(cr.completionAddr));
600                      ce->pciToDma(cr.completionAddr),
698     cr.serialize(cp);
716     cr.unserialize(cp);