1 / 26

Giano

Learn about Giano, a cutting-edge real-time simulation tool for hardware-software co-development, using Visio UI and user-defined DLLs. Free for academic use.

sgrube
Download Presentation

Giano

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Giano Introduction to Alessandro Forin Microsoft Research

  2. Take-aways • Giano is the first Real-Time Simulation Framework for hardware-software co-development • Uses Microsoft Visio as the graphing and execution UI • Configurations are Platform XML files • Nodes in the graph are separate, user-defined DLLs • Properties are user-defined and node-specific • Lots of functionality pre-built into the base framework • 70+ working modules, 20+ systems, 4 years internal use • Source, free for academic use at http://research.microsoft.com/downloads

  3. Hw/Sw Co-Development? • Develop or synthesize hardware and software at the same time • Simulate a full system before it is ready • Use C-models and/or HDL-models to define behaviors • All of the above  Giano

  4. ARM: At91m63200 FPGA: vvp.dll PLI plug-in (VPI) NamedPipe client NamedPipe “GIANO” PLI plug-in (VPI) Optional: external devices (LabView) Giano process ModelSim process Xilinx: Spartan3 CPU module test; always @(posedge clock) counter = counter + 1; Start = TheCounter->Value; ...compute... End = TheCounter->Value; MEM I/O Optional: Icarus Verilog Interpreter

  5. ICipher implementation AES components, sw/hw Test program and data AES component Base RTOS ARM Microcontroller Xilinx FPGA

  6. Real-Time Simulation • Definition Realize a software system that matches the temporal behavior of the hardware+software system being simulated, using the same time-ordered sequence of inputs • Applicable to hybrid hw+sw simulators too • Requires: • Clock adaptation • I/O adaptation

  7. Clock Adaptation Problem: Output a character every second • Timer too slow/fast?  Incorrect • Host load changes?  Erratic Solution: Rate-limit the clock using introspection and adaptation

  8. Rate-limiting the Clock • Every M (10**3) clock ticks spin idle for D microseconds • Every N (10**6) clock ticks check the actual frequency against the target frequency, adjust the delay D

  9. Adjusting the Delay factor

  10. Effect on IPS

  11. I/O adaptation Problem: 9600 baud serial line • From disk trace?  too fast • From user?  too slow • From real serial line?  depends Solution: • Link to rate-limited clock • Adapt using events and notifications

  12. Example: Programmable Timer void TcDevice::Event(GIANO_EVENT *Event) { PTC_STATE State = &this->TcState; UINT32 BaseCount = (UINT32) Event->Arg2; if (Event == &Notification) { CalibrateTc( (UINT32) Event->Arg1 ); return; } // trigger interrupt if enabled State->Control |= TCCT_INTERRUPT; if (State->Control & TCCT_ENABLE) ParentBus->Interrupt( InterruptNumber, true); …..

  13. Take-aways • Giano is the first Real-Time Simulation Framework for hardware-software co-development • Uses Microsoft Visio as the graphing and execution UI • Configurations are Platform XML files • Nodes in the graph are separate, user-defined DLLs • Properties are user-defined and node-specific • Lots of functionality pre-built into the base framework • 70+ working modules, 20+ systems, 4 years internal use • Source, free for academic use at http://research.microsoft.com/downloads

  14. Visio Diagrams Atmel EB63 Evaluation Board

  15. Multi-processors Apple Power Mac G5

  16. Take-aways • Giano is the first Real-Time Simulation Framework for hardware-software co-development • Uses Microsoft Visio as the graphing and execution User Interface • Configurations are Platform XML files • Nodes in the graph are separate, user-defined DLLs • Properties are user-defined and node-specific • Lots of functionality pre-built into the base framework • 70+ working modules, 20+ systems, 4 years internal use • Source, free for academic use at http://research.microsoft.com/downloads

  17. Per-node Properties • Create/edit as Visio “Custom Properties” • Values are Unicode strings and numbers • Only the “Implementation” is required • Any property can be overridden on the command line

  18. Giano Engine • Parses the XML configuration graph • Instantiates the modules as DLLs • Exports a few support classes to the modules

  19. Platform XML <?xml version='1.0'?> <Configuration name="MyConfiguration"> <CPU name="Cpu1"> <Property name="CpuType" value="ARM" /> <Property name="Implementation" value=“arm" /> <ConnectsTo name="RootBus" /> </CPU> <BUS name="RootBus"> <Property name="BusType" value="RootBus" /> <Property name="Implementation" value=“amba" /> <ConnectsTo name="Cpu1" /> <ConnectsTo name="Memory" /> </BUS> <Memory name="Memory"> <Property name="MemoryType" value="RAM" /> <Property name="Implementation" value="memory" /> <Property name="StartAddress" value="0" /> <Property name="Size" value="2097152" /> <ConnectsTo name="RootBus" /> </Memory> </Configuration>

  20. Take-aways • Giano is the first Real-Time Simulation Framework for hardware-software co-development • Uses Microsoft Visio as the graphing and execution UI • Configurations are Platform XML files • Nodes in the graph are separate, user-defined DLLs • Properties are user-defined and node-specific • Lots of functionality pre-built into the base framework • 70+ working modules, 20+ systems, 4 years internal use • Source, free for academic use at http://research.microsoft.com/downloads

  21. Core Functionalities • Central clock, linked to CPU #0 • Real-Time calibration, both CPUs and I/O • Eventing and dynamic re-calibration • Mapping to the host’s physical devices • Large simulated guest memory (512 MB and up) • Symbol tables with load/unload • Tracing and basic-block profiling • Graph management, with hot-plugging • MP interlocks

  22. CPUs • ARM & Thumb, MIPS (both endians), PowerPC • SimpleScalar, PolyScalar, Cacti • In-Circuit Emulation (ICE), 2 JTAG • Traps, external interrupts, resets • Pluggable MMUs: one software, one in Verilog • All interpreters (so far), all MultiProc • Self-testing against “Oracle” machines • ~20 Million instructions per second • Settable lower speed (25MHz ~> 5 MIPS)

  23. Busses • PCI, AGP, EBI, MPI, “root bus” • Test case generator (MIPS) • Optimized routing, always one-hop away. • Aliasing and multi-mapping • Interrupt routing • Support hot-plug/unplug of modules

  24. Memory • RAM, ROM, FLASH, Serial Flash • Boot images and overlays • Arbitrary transaction sizes • Accessible from any module (DMA!) • Buffer pinning • Large, contiguous virtual segment for best performance • Aliasing

  25. Peripherals, examples • 2D-graphic, 2 LCDs, keyboard, mouse, sound card • A/D and D/A converters, gyroscope • Ethernet, FireWire, Serial lines • IDE and ATAPI disks • 3 interrupt controllers and 3 timers • GPIO with buttons, LEDs, Serial Flash • Power/System management chips [with fan ] • FPGA interface to ModelSim/Icarus • Watchdog, “Debug” modules • “Do-nothing” module for unimplemented parts

  26. Take-aways • Giano is the first Real-Time Simulation Framework for hardware-software co-development • Uses Microsoft Visio as the graphing and execution UI • Configurations are Platform XML files • Nodes in the graph are separate, user-defined DLLs • Properties are user-defined and node-specific • Lots of functionality pre-built into the base framework • 70+ working modules, 20+ systems, 4 years internal use • Source, free for academic use at http://research.microsoft.com/downloads

More Related