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Refactor package hierarchy and remove legacy bus protocol implementations (#845)

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* Refactors package hierarchy.

Additionally:
  - Removes legacy ground tests and configs
  - Removes legacy bus protocol implementations
  - Removes NTiles
  - Adds devices package
  - Adds more functions to util package
This commit is contained in:
Henry Cook
2017-07-07 10:48:16 -07:00
committed by GitHub
parent c28c23150d
commit 4c595d175c
238 changed files with 1347 additions and 10978 deletions
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26
README.md
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@@ -154,13 +154,20 @@ Some of these packages provide Scala utilities for generator configuration,
while other contain the actual Chisel RTL generators themselves.
Here is a brief description of what can be found in each package:
* **amba**
This RTL package uses diplomacy to generate bus implementations of AMBA protocols, including AXI4, AHB-lite, and APB.
* **chip**
This top-level utility package invokes Chisel to elaborate a particular configuration of a coreplex,
along with the appropriate testing collateral.
* **config**
This utility package provides Scala interfaces for configuring a generator via a dynamically-scoped
parameterization library.
* **coreplex**
This RTL package generates a complete coreplex by gluing together a variety of other components,
including tiled Rocket cores, an L1-to-L2 network, L2 coherence agents, and internal devices
such as the debug unit and interrupt handlers.
This RTL package generates a complete coreplex by gluing together a variety of components from other packages,
including: tiled Rocket cores, a system bus network, coherence agents, debug devices, interrupt handlers, externally-facing peripherals,
clock-crossers and converters from TileLink to external bus protocols (e.g. AXI or AHB).
* **devices**
This RTL package contains implementations for peripheral devices, including the Debug module and various TL slaves.
* **diplomacy**
This utility package extends Chisel by allowing for two-phase hardware elaboration, in which certain parameters
are dynamically negotiated between modules.
@@ -176,16 +183,13 @@ This RTL package generates the Rocket in-order pipelined core,
as well as the L1 instruction and data caches.
This library is intended to be used by a chip generator that instantiates the
core within a memory system and connects it to the outside world.
* **uncore**
This RTL package generates a variety of uncore logic and devices, such as
such as the L2 coherence hub and Debug modules, as well as defining their interfaces and protocols.
Contains implementations of both TileLink and AXI4.
* **tile**
This RTL package contains components that can be combined with cores to construct tiles, such as FPUs and accelerators.
* **tilelink**
This RTL package uses diplomacy to generate bus implementations of the TileLink protocol. It also contains a variety
of adapters and protocol converters.
* **unittest**
This utility package contains a framework for generateing synthesizeable hardware testers of individual modules.
* **rocketchip**
This top-level RTL package instantiates a coreplex and drops in any additional
externally-facing peripheral devices. It also includes clock-crossers and converters
from TileLink to external bus protocols (e.g. AXI or AHB).
* **util**
This utility package provides a variety of common Scala and Chisel constructs that are re-used across
multiple other packages,