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https://git.rwth-aachen.de/acs/public/villas/node/
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123 lines
4 KiB
C++
123 lines
4 KiB
C++
/* GPU2RTDS IP core
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*
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* Author: Daniel Krebs <github@daniel-krebs.net>
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* SPDX-FileCopyrightText: 2017 Daniel Krebs <github@daniel-krebs.net>
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <cstring>
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#include <unistd.h>
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#include <villas/fpga/ips/rtds2gpu.hpp>
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#include <villas/log.hpp>
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#include <villas/memory_manager.hpp>
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using namespace villas::fpga::ip;
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bool Rtds2Gpu::init() {
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Hls::init();
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xInstance.IsReady = XIL_COMPONENT_IS_READY;
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xInstance.Ctrl_BaseAddress = getBaseAddr(registerMemory);
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status.value = 0;
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started = false;
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// maxFrameSize = getMaxFrameSize();
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maxFrameSize = 16;
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logger->info("Max. frame size supported: {}", maxFrameSize);
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return true;
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}
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void Rtds2Gpu::dump(spdlog::level::level_enum logLevel) {
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const auto baseaddr = XRtds2gpu_Get_baseaddr(&xInstance);
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const auto data_offset = XRtds2gpu_Get_data_offset(&xInstance);
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const auto doorbell_offset = XRtds2gpu_Get_doorbell_offset(&xInstance);
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const auto frame_size = XRtds2gpu_Get_frame_size(&xInstance);
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logger->log(logLevel, "Rtds2Gpu registers (IP base {:#x}):",
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xInstance.Ctrl_BaseAddress);
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logger->log(logLevel, " Base address (bytes): {:#x}", baseaddr);
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logger->log(logLevel, " Doorbell offset (bytes): {:#x}", doorbell_offset);
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logger->log(logLevel, " Data offset (bytes): {:#x}", data_offset);
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logger->log(logLevel, " Frame size (words): {:#x}", frame_size);
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logger->log(logLevel, " Status: {:#x}", status.value);
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logger->log(logLevel, " Running: {}",
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(status.is_running ? "yes" : "no"));
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logger->log(logLevel, " Frame too short: {}",
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(status.frame_too_short ? "yes" : "no"));
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logger->log(logLevel, " Frame too long: {}",
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(status.frame_too_long ? "yes" : "no"));
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logger->log(logLevel, " Frame size invalid: {}",
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(status.invalid_frame_size ? "yes" : "no"));
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logger->log(logLevel, " Last count: {}", (int)status.last_count);
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logger->log(logLevel, " Last seq. number: {}", (int)status.last_seq_nr);
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logger->log(logLevel, " Max. frame size: {}",
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(int)status.max_frame_size);
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}
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bool Rtds2Gpu::startOnce(const MemoryBlock &mem, size_t frameSize,
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size_t dataOffset, size_t doorbellOffset) {
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auto &mm = MemoryManager::get();
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if (frameSize > maxFrameSize) {
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logger->error("Requested frame size of {} exceeds max. frame size of {}",
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frameSize, maxFrameSize);
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return false;
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}
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auto translationFromIp = mm.getTranslation(
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getMasterAddrSpaceByInterface(axiInterface), mem.getAddrSpaceId());
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// Set address of memory block in HLS IP
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XRtds2gpu_Set_baseaddr(&xInstance, translationFromIp.getLocalAddr(0));
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XRtds2gpu_Set_doorbell_offset(&xInstance, doorbellOffset);
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XRtds2gpu_Set_data_offset(&xInstance, dataOffset);
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XRtds2gpu_Set_frame_size(&xInstance, frameSize);
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// Prepare memory with all zeroes
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auto translationFromProcess =
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mm.getTranslationFromProcess(mem.getAddrSpaceId());
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auto memory =
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reinterpret_cast<void *>(translationFromProcess.getLocalAddr(0));
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memset(memory, 0, mem.getSize());
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// Start IP
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return start();
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}
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bool Rtds2Gpu::updateStatus() {
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if (not XRtds2gpu_Get_status_vld(&xInstance))
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return false;
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status.value = XRtds2gpu_Get_status(&xInstance);
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return true;
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}
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size_t Rtds2Gpu::getMaxFrameSize() {
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XRtds2gpu_Set_frame_size(&xInstance, 0);
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start();
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while (not isFinished())
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;
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updateStatus();
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return status.max_frame_size;
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}
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void Rtds2Gpu::dumpDoorbell(uint32_t doorbellRegister) const {
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auto &doorbell = reinterpret_cast<reg_doorbell_t &>(doorbellRegister);
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logger->info("Doorbell register: {:#08x}", doorbell.value);
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logger->info(" Valid: {}", doorbell.is_valid ? "yes" : "no");
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logger->info(" Count: {}", (int)doorbell.count);
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logger->info(" Seq. number: {}", (int)doorbell.seq_nr);
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}
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static char n[] = "Rtds2Gpu";
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static char d[] = "HLS RTDS2GPU IP";
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static char v[] = "acs.eonerc.rwth-aachen.de:hls:rtds2gpu:";
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static NodePlugin<Rtds2Gpu, n, d, v> f;
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