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https://github.com/openhwgroup/cv-hpdcache
RTL sources of the High-Performance L1 Dcache (HPDcache) for OpenHW CV cores
https://github.com/openhwgroup/cv-hpdcache
Last synced: about 2 months ago
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RTL sources of the High-Performance L1 Dcache (HPDcache) for OpenHW CV cores
- Host: GitHub
- URL: https://github.com/openhwgroup/cv-hpdcache
- Owner: openhwgroup
- License: other
- Created: 2023-02-21T14:09:35.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2024-06-19T08:21:57.000Z (3 months ago)
- Last Synced: 2024-06-19T22:50:23.048Z (3 months ago)
- Language: SystemVerilog
- Size: 1.01 MB
- Stars: 41
- Watchers: 16
- Forks: 13
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
- Codeowners: CODEOWNERS
Awesome Lists containing this project
- awesome-opensource-hardware - cv-hpdcache
README
# OpenHW Core-V High-Performance L1 Dcache (CV-HPDcache)
The HPDcache is an open-source High-Performance, Multi-requester, Out-of-Order L1 Dcache for RISC-V cores and accelerators.
## Directory Structure
Directory
Description
rtl
Contains the file lists to be used for the compiling of the HPDcache
rtl/src
Contains the SystemVerilog RTL sources of the HPDcache
rtl/src/target
Contains processor-dependent sources (e.g. adapter modules for the CVA6 core)
docs
Contains documentation of the HPDcache
## Documentation
The HPDcache specification document can be found in the *docs/hpdcache_spec_document* folder.
It is written in LaTeX.
You cand find pre-compiled PDF documents in *docs/hpdcache_spec_document/release*.
If you need to recompile the specification document, a dedicated *Makefile* is in the specification folder.
This *Makefile* needs the *latexmk* command-line tool (included in most common LaTeX distributions) and the *inkscape* tool to convert SVG images into PDF.
## Licensing
The HPDcache is released under the Solderpad Hardware License (version 2.1).
Please refer to the [LICENSE](LICENSE) file for further information.
## Integration Examples of the HPDcache
### CVA6
The HPDcache is integrated with the CVA6 core.
The HPDcache repository (this repository) is included as a submodule of the CVA6 Git.
After you clone the [CVA6](https://github.com/openhwgroup/cva6) repository, be sure to pass the ``config_pkg::HPDCACHE`` value to the ``DCacheType`` parameter.
This selects the HPDcache as the L1 Data Cache of the core.
For example, the CVA6 configuration package [cv64a6_imafdc_sv39_hpdcache_config_pkg.sv](https://github.com/openhwgroup/cva6/blob/master/core/include/cv64a6_imafdc_sv39_hpdcache_config_pkg.sv) does this.
The HPDcache is instantiated in the [cva6_hpdcache_subsystem.sv](https://github.com/openhwgroup/cva6/blob/master/core/cache_subsystem/cva6_hpdcache_subsystem.sv) file.
You may take a look if you want to integrate the HPDcache with another core.
### Integration Template
You may look into the docs/lint subdirectory of this repository to see an integration example of the HPDcache ([hpdcache_lint.sv](docs/lint/hpdcache_lint.sv)).
This example uses the macros defined in the [hpdcache_typedef.svh](rtl/include/hpdcache_typedef.svh) file.
These macros ease the definition of types required by the interface of the HPDcache module.
## HPDcache Publications & Tutorials
- Technical Paper: César Fuguet. 2023. HPDcache: Open-Source High-Performance L1 Data Cache for RISC-V Cores. In Proceedings of the 20th ACM International Conference on Computing Frontiers (CF '23). Association for Computing Machinery, New York, NY, USA, 377–378.
- Video: César Fuguet. 2023. High Performance L1 Dcache for RISC-V Cores. TRISTAN Workshop. RISC-V Summit Europe 2023.
- Video: Christian Fabre, César Fuguet. 2023. One Year of Improvements on OpenHW Group's HPDCache. RISC-V Summit US 2023.