Intel® FPGA SDK for OpenCL™: Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Porting Guide

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ID 683809
Date 3/28/2022
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Document Table of Contents
Document Table of Contents x
1. Intel® FPGA SDK for OpenCL™ Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Porting Guide 2. Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design Architecture 3. Developing Your Intel® Stratix® 10 Custom Platform 4. Document Revision History
1. Intel® FPGA SDK for OpenCL™ Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Porting Guide x
1.1. Introduction to Intel® Reference Platform 1.2. Intel® Stratix® 10 GX FPGA Development Kit Reference Platform: Prerequisites 1.3. Features of the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform 1.4. Contents of the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform
1.3. Features of the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform x
1.3.1. Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Board Variants
2. Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design Architecture x
2.1. Host-to- Intel® Stratix® 10 FPGA Communication over PCIe® 2.2. DDR4 as Global Memory for OpenCL Applications 2.3. Host Connection to OpenCL Kernels 2.4. Partial Reconfiguration 2.5. Other Components in the Reference Design 2.6. Intel® Stratix® 10 FPGA System Design 2.7. Guaranteed Timing Closure of the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design 2.8. Intel® FPGA SDK for OpenCL™ Compilation Flows 2.9. Addition of Timing Constraints 2.10. Connection of the Intel® Reference Platform to the Intel® FPGA SDK for OpenCL™ 2.11. Intel® Stratix® 10 FPGA Programming Flow 2.12. Implementation of Intel® FPGA SDK for OpenCL™ Utilities 2.13. Considerations in Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Implementation
2.1. Host-to- Intel® Stratix® 10 FPGA Communication over PCIe® x
2.1.1. Instantiation of Intel® Stratix® 10 PCIe* Hard IP with Direct Memory Access 2.1.2. Device Identification Registers for Intel® Stratix® 10 PCIe Hard IP 2.1.3. Instantiation of the version_id Component 2.1.4. Board Support Package Software Layer 2.1.5. Direct Memory Access 2.1.6. Message Signaled Interrupt 2.1.7. Instantiation of board_cade_id_0 Component – JTAG Cable Autodetect Feature
2.1.4. Board Support Package Software Layer x
2.1.4.1. Common Hardware Constants in Software Headers Files 2.1.4.2. PCIe Kernel Driver 2.1.4.3. Host-to-Device MMD Software Implementation
2.1.5. Direct Memory Access x
2.1.5.1. Implementing a DMA Transfer
2.2. DDR4 as Global Memory for OpenCL Applications x
2.2.1. DDR4 IP Instantiation 2.2.2. DDR4 Connection to PCIe Host 2.2.3. DDR4 Connection to the OpenCL Kernel
2.4. Partial Reconfiguration x
2.4.1. Constant Address Bridge (constant_address_bridge)
2.6. Intel® Stratix® 10 FPGA System Design x
2.6.1. Clocks 2.6.2. Resets 2.6.3. Floorplan 2.6.4. Global Routing 2.6.5. Pipelining Examples of Pipeline Implementation 2.6.6. DDR4 Calibration
2.7. Guaranteed Timing Closure of the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design x
2.7.1. Supply the Kernel Clock 2.7.2. Guarantee Kernel Clock Timing 2.7.3. Provide a Timing-Closed Post-Fit Netlist
2.8. Intel® FPGA SDK for OpenCL™ Compilation Flows x
2.8.1. Compile Flow 2.8.2. Platform Designer System Generation 2.8.3. QAR/QDB File Generation
2.10. Connection of the Intel® Reference Platform to the Intel® FPGA SDK for OpenCL™ x
2.10.1. Describe the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform to the Intel® FPGA SDK for OpenCL™ 2.10.2. Describe the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Hardware to the Intel® FPGA SDK for OpenCL™
2.12. Implementation of Intel® FPGA SDK for OpenCL™ Utilities x
2.12.1. aocl install 2.12.2. aocl uninstall 2.12.3. aocl program 2.12.4. aocl flash 2.12.5. aocl diagnose 2.12.6. aocl list-devices
3. Developing Your Intel® Stratix® 10 Custom Platform x
3.1. Initializing Your Intel® Stratix® 10 Custom Platform 3.2. Modifying the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design 3.3. Integrating Your Intel® Stratix® 10 Custom Platform with the Intel® FPGA SDK for OpenCL™ 3.4. Setting up the Intel® Stratix® 10 Custom Platform Software Development Environment 3.5. Establishing Intel® Stratix® 10 Custom Platform Host Communication 3.6. Branding Your Intel® Stratix® 10 Custom Platform 3.7. Changing the Device Part Number 3.8. Connecting the Memory in the Intel® Stratix® 10 Custom Platform 3.9. Modifying the Kernel PLL Reference Clock 3.10. Integrating an OpenCL Kernel in Your Intel® Stratix® 10 Custom Platform 3.11. Troubleshooting Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Porting Issues
1. Intel® FPGA SDK for OpenCL™ Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Porting Guide
2. Intel® Stratix® 10 GX FPGA Development Kit Reference Platform Design Architecture
3. Developing Your Intel® Stratix® 10 Custom Platform
4. Document Revision History

2.6.5. Pipelining

You must manually insert pipelines throughout the FPGA system.

In the Platform Designer, you can implement pipelines via an Avalon® -MM Pipeline Bridge component by setting the following pipelining parameters within the Avalon® MM Pipeline Bridge dialog box:

  • Select Pipeline command signals
  • Select Pipeline response signals
  • Select both Pipeline command signals and Pipeline response signals

Examples of Pipeline Implementation

  • Signals that traverse long distances because of the floorplan's shape or the region-to-region gaps require additional pipelines.

    The DMA at the bottom of the FPGA must connect to the DDR4 memory at the top of the FPGA. To achieve timing closure of the board interface logic at a DDR4 clock speed of 233 MHz, additional pipeline stages between the OpenCL™ Memory Bank Divider component and the DDR4 controller IP are necessary. In the Intel® Stratix® 10 GX FPGA Development Kit Reference Platform's board.qsys Platform Designer system, the pipeline stages are named pipe_stage.

    The middle pipeline stage, kernel_ddra_bridge, combines both the direct kernel DDR4 accesses and the accesses through the OpenCL Memory Bank Divider. The multistage pipeline approach ensures that the kernel entry point to the pipeline is neither geared towards the OpenCL Memory Bank Divider, which is close to the PCIe* IP core, nor the DDR4 IP core, which is at the very top of the FPGA.

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