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

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ID 683267
Date 3/28/2022
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Document Table of Contents
Document Table of Contents x
1. Intel® FPGA SDK for OpenCL™ Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Guide 2. Developing Your Intel® Arria® 10 Custom Platform 3. Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design Architecture 4. Intel® FPGA SDK for OpenCL™ Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Guide Archives 5. Document Revision History for the Intel Arria 10 GX FPGA Development Kit Reference Platform Porting Guide
1. Intel® FPGA SDK for OpenCL™ Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Guide x
1.1. Intel® Arria® 10 GX FPGA Development Kit Reference Platform: Prerequisites 1.2. Features of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform 1.3. Contents of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform 1.4. Intel Arria 10 GX FPGA Development Kit Reference Platform BSP Changes Between Intel® Quartus® Prime Design Suite Releases
1.2. Features of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform x
1.2.1. Intel® Arria® 10 GX FPGA Development Kit Reference Platform Board Variants
1.4. Intel Arria 10 GX FPGA Development Kit Reference Platform BSP Changes Between Intel® Quartus® Prime Design Suite Releases x
1.4.1. BSP Changes from Intel® Quartus® Prime Design Suite Version 16.1 to Version 17.0 1.4.2. BSP Changes from Intel® Quartus® Prime Design Suite Version 17.0 to Version 17.1 1.4.3. BSP Changes from Intel® Quartus® Prime Design Suite Version 17.1 to Version 18.0 1.4.4. BSP Changes from Intel® Quartus® Prime Design Suite Version 18.0 to Version 18.1 1.4.5. BSP Changes from Intel® Quartus® Prime Design Suite Version 18.1 to Version 19.1
2. Developing Your Intel® Arria® 10 Custom Platform x
2.1. Initializing Your Intel® Arria® 10 Custom Platform 2.2. Modifying the Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design 2.3. Integrating Your Intel® Arria® 10 Custom Platform with the Intel® FPGA SDK for OpenCL™ 2.4. Setting up the Intel® Arria® 10 Custom Platform Software Development Environment 2.5. Establishing Intel® Arria® 10 Custom Platform Host Communication 2.6. Branding Your Intel® Arria® 10 Custom Platform 2.7. Changing the Device Part Number 2.8. Connecting the Memory in the Intel® Arria® 10 Custom Platform 2.9. Modifying the Kernel PLL Reference Clock 2.10. Integrating an OpenCL Kernel in Your Intel® Arria® 10 Custom Platform 2.11. Guaranteeing Timing Closure in the Intel® Arria® 10 Custom Platform 2.12. Troubleshooting Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Issues
2.11. Guaranteeing Timing Closure in the Intel® Arria® 10 Custom Platform x
2.11.1. Generating the base.qar Post-Fit Netlist for Your Intel® Arria® 10 Custom Platform
3. Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design Architecture x
3.1. Host-to- Intel® Arria® 10 FPGA Communication over PCIe® 3.2. DDR4 as Global Memory for OpenCL Applications 3.3. Host Connection to OpenCL Kernels 3.4. Intel® Arria® 10 FPGA System Design 3.5. Dynamic PLL Reconfiguration 3.6. Guaranteed Timing Closure of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design 3.7. Intel® Quartus® Prime Compilation Flow and Scripts 3.8. Addition of Timing Constraints 3.9. Connection of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform to the Intel® FPGA SDK for OpenCL™ 3.10. Intel® Arria® 10 FPGA Programming Flow 3.11. Host-to-Device MMD Software Implementation 3.12. Implementation of Intel® FPGA SDK for OpenCL™ Utilities 3.13. Intel® Arria® 10 FPGA Development Kit Reference Platform Scripts 3.14. Considerations in Intel® Arria® 10 GX FPGA Development Kit Reference Platform Implementation
3.1. Host-to- Intel® Arria® 10 FPGA Communication over PCIe® x
3.1.1. Instantiation of Intel® Arria® 10 PCIe* Hard IP with Direct Memory Access 3.1.2. Device Identification Registers for Intel® Arria® 10 PCIe Hard IP 3.1.3. Instantiation of the version_id Component 3.1.4. Definitions of Intel® Arria® 10 FPGA Development Kit Reference Platform Hardware Constraints in Software Headers Files 3.1.5. PCIe Kernel Driver for the Intel® Arria® 10 GX FPGA Development Kit Reference Platform 3.1.6. Direct Memory Access 3.1.7. Message Signaled Interrupt 3.1.8. Partial Reconfiguration 3.1.9. Cable Autodetect 3.1.10. Host Channel
3.1.6. Direct Memory Access x
3.1.6.1. Implementing a DMA Transfer
3.1.10. Host Channel x
3.1.10.1. Host Channel IP Instantiation 3.1.10.2. Host Channel Top Connection to PCIe* DMA 3.1.10.3. Host Channel Top Connection to OpenCL Kernel
3.2. DDR4 as Global Memory for OpenCL Applications x
3.2.1. DDR4 IP Instantiation 3.2.2. DDR4 Connection to PCIe Host 3.2.3. DDR4 Connection to the OpenCL Kernel
3.4. Intel® Arria® 10 FPGA System Design x
3.4.1. Clocks 3.4.2. Resets 3.4.3. Floorplan 3.4.4. Global Routing 3.4.5. Pipelining 3.4.6. DDR4 Calibration 3.4.7. Kernel Reprogramming via Partial Reconfiguration
3.6. Guaranteed Timing Closure of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design x
3.6.1. Supply the Kernel Clock 3.6.2. Guarantee Kernel Clock Timing 3.6.3. Provide a Timing-Closed Post-Fit Netlist
3.7. Intel® Quartus® Prime Compilation Flow and Scripts x
3.7.1. Enabling the Intel® Quartus® Prime Forward-Compatibility Flow 3.7.2. Intel® Quartus® Prime Compilation Flow for Board Developers 3.7.3. Intel® Quartus® Prime Compilation Flow for Custom Platform Users 3.7.4. Platform Designer System Generation 3.7.5. QDB File Generation 3.7.6. Hash Checking
3.9. Connection of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform to the Intel® FPGA SDK for OpenCL™ x
3.9.1. Describe the Intel® Arria® 10 GX FPGA Development Kit Reference Platform to the Intel® FPGA SDK for OpenCL™ 3.9.2. Describe the Intel® Arria® 10 GX FPGA Development Kit Reference Platform Hardware to the Intel® FPGA SDK for OpenCL™
3.10. Intel® Arria® 10 FPGA Programming Flow x
3.10.1. Define the Contents of the fpga.bin File for the Intel® Arria® 10 GX FPGA Development Kit Reference Platform
3.12. Implementation of Intel® FPGA SDK for OpenCL™ Utilities x
3.12.1. aocl install 3.12.2. aocl uninstall 3.12.3. aocl program 3.12.4. aocl flash 3.12.5. aocl diagnose 3.12.6. aocl list-devices
3.12.5. aocl diagnose x
3.12.5.1. Possible Errors After Running the diagnose Utility
1. Intel® FPGA SDK for OpenCL™ Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Guide
2. Developing Your Intel® Arria® 10 Custom Platform
3. Intel® Arria® 10 GX FPGA Development Kit Reference Platform Design Architecture
4. Intel® FPGA SDK for OpenCL™ Intel® Arria® 10 GX FPGA Development Kit Reference Platform Porting Guide Archives
5. Document Revision History for the Intel Arria 10 GX FPGA Development Kit Reference Platform Porting Guide

3.1.5. PCIe Kernel Driver for the Intel® Arria® 10 GX FPGA Development Kit Reference Platform

A PCIe® kernel driver is necessary for the OpenCL™ runtime library to access your board design via a PCIe bus.

This driver is installed using the Intel® FPGA SDK for OpenCL™ install utility.

The a10_ref Reference Platform

  • For Windows systems, the driver is in the <path_to_al0pciedk>\windows64\driver folder.

    The kernel driver, the WinDriver application programming interface (API), is a third-party driver from Jungo Connectivity Ltd. For more information about the WinDriver, refer to the Jungo Connectivity Ltd. website or contact a Jungo Connectivity representative.

  • For Linux, an open-source MMD-compatible kernel driver is in the <path_to_al0pciedk>/linux64/driver directory. The table below highlights some of the files that are available in this directory.
Table 13.  Highlights of the Intel® Arria® 10 GX FPGA Development Kit Reference Platform's Linux PCIe Kernel Driver Directory
File Description
pcie_linux_driver_exports.h Header file that defines the special commands that the kernel driver supports.

The installed kernel driver works as a character device. The basic operations to the driver are open(), close(), read(), and write().

To execute a complicated command, create a variable as an acl_cmd struct type, specify the command with the proper parameters, and then send the command through a read() or write() operation. This header file defines the interface of the kernel driver, which the MMD layer uses to communicate with the device.

aclpci.c File that implements the Linux kernel driver's basic structures and functions, such as the init, remove, and probe functions, as well as hardware design-specific functions that handle interrupts.

For more information about the interrupt handler, refer to the Message Signaled Interrupts section.

aclpci fileio.c File that implements the kernel driver's file I/O operations.

The kernel driver that is available with the a10_ref Reference Platform supports four file I/O operations: open(), close(), read(), and write(). Implementing these file I/O operations allows the OpenCL* user program to access the kernel driver through the file I/O system calls (that is, open, read, write, or close).

aclpci cmd.c File that implements the specific commands defined in the pcie_linux_driver_exports.h file.

These special commands include SAVE_PCI_CONTROL_REGS, LOAD_PCI_CONTROL_REGS, DO_PR, GET_PCI_SLOT_INFO, and so on.

aclpci dma.c File that implements DMA and host channel-related routines in the kernel driver.

Refer to the Direct Memory Access section for more information.

aclpci pr.c File that implements PR-related routines in the kernel driver.

Refer to the Partial Reconfiguration section for more information.

aclpci queue.c File that implements a queue structure for use in the kernel driver to simplify programming.
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