Add the HPDcache as another alternative for the cache subsystem.
The HPDcache is a highly configurable L1 Dcache that mainly targets high-performance systems.
The ID in the request from the load/store unit must be mirrored by the
Dcache in the response. This allows to match a given response to its
corresponding request. Responses can be given (by the Dcache) in a
different order that the one of requests.
This modification introduces a pending load table that tracks
outstanding load operations to the Dcache. The depth of this table is
a parameter in the target configuration package.
Signed-off-by: Cesar Fuguet <cesar.fuguettortolero@cea.fr>
* Clean-up README.md and top-level directory
This removes the duplicate `scripts` and `util` directories. Furthermore
the README is condensed by collapsing the citation and adding the
CITATION file to the repository.
Signed-off-by: Florian Zaruba <florian@openhwgroup.org>
* Re-name icache req/rsp structs
The structs used to communicate with the icache have contained the
direction, which makes no sense for structs since they inherently don't
have any direction.
Signed-off-by: Florian Zaruba <florian@openhwgroup.org>
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Signed-off-by: Florian Zaruba <florian@openhwgroup.org>
