Vitis accelerator

[axiotisk]

Description

The Vitis Accelerator Backend builds upon the foundation laid by the Vitis backend and streamlines the generation process for PCIe accelerators using the Vitis Accelerator Flow.
Features:

• This backend inherits from the Vitis backend, ensuring compatibility with existing workflows and projects.
• Converts the input of the top-level design from AXI Stream to memory-mapped and the output from memory-mapped to AXI Stream.
• Automates the generation of host code and the necessary makefile for kernel compilation. The host code and build process is expected to evolve before the merge of this MR

Type of change

For a new feature or function, please create an issue first to discuss it
with us before submitting a pull request.

Note: Please delete options that are not relevant.

• Bug fix (non-breaking change that fixes an issue)
• Documentation update
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• A new research paper code implementation
• Other (Specify)

Tests

The backend has been tested with the hls4ml getting started tutorial example.

Test Configuration:
The Vitis version used for the validation is 2022.2.
The functionality of the project was tested on a VCK5000 accelerator board.

Checklist

• I have read the guidelines for contributing.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have installed and run pre-commit on the files I edited or added.
• I have added tests that prove my fix is effective or that my feature works.