spelling check | better heading for accelerators

This commit is contained in:
abejgonzalez
2019-05-27 19:07:55 -07:00
parent 3b14ac8706
commit c160f597b7
8 changed files with 11 additions and 11 deletions

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@@ -3,7 +3,7 @@ Berkeley Out-of-Order Machine (BOOM)
The `Berkeley Out-of-Order Machine (BOOM) <https://boom-core.org/>`__ is a synthesizable and parameterizable open source RV64GC RISC-V core written in the Chisel hardware construction language.
It serves as a drop-in replacement to the Rocket core given by Rocket Chip.
BOOM is heavily inspired by the MIPS R10k and the Alpha 21264 outoforder processors.
BOOM is heavily inspired by the MIPS R10k and the Alpha 21264 out-of-order processors.
Like the R10k and the 21264, BOOM is a unified physical register file design (also known as “explicit register renaming”).
Conceptually, BOOM is broken up into 10 stages: Fetch, Decode, Register Rename, Dispatch, Issue, Register Read, Execute, Memory, Writeback and Commit.
However, many of those stages are combined in the current implementation, yielding seven stages: Fetch, Decode/Rename, Rename/Dispatch, Issue/RegisterRead, Execute, Memory and Writeback (Commit occurs asynchronously, so it is not counted as part of the “pipeline”).

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@@ -22,7 +22,7 @@ The X will be a number 0-3, and determines the opcode of the instruction, which
The ``rd``, ``rs1``, and ``rs2`` fields are the register numbers of the destination register and two source registers.
The ``funct`` field is a 7-bit integer that the accelerator can use to distinguish different instructions from each other.
Note that communication through a RoCC interface requires a custom software toolchain, whereas MMIO peripherals can use that standard toolchain with approriate driver support.
Note that communication through a RoCC interface requires a custom software toolchain, whereas MMIO peripherals can use that standard toolchain with appropriate driver support.
Integrating into the Generator Build System
-------------------------------------------
@@ -138,7 +138,7 @@ For a simple memory-mapped peripheral, this just involves connecting the periphe
Note that the ``PWMTL`` class we created from the register router is itself a ``LazyModule``.
Register routers have a TileLike node simply named "node", which we can hook up to the Rocket Chip bus.
Register routers have a TileLink node simply named "node", which we can hook up to the Rocket Chip bus.
This will automatically add address map and device tree entries for the peripheral.
The module implementation trait is where we instantiate our PWM module and connect it to the rest of the SoC.

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@@ -13,7 +13,7 @@ Chisel/FIRRTL
One of the tools to help create new RTL designs quickly is the `Chisel Hardware Construction Language <https://chisel.eecs.berkeley.edu/>`__ and the `FIRRTL Compiler <https://freechipsproject.github.io/firrtl/>`__.
Chisel is an embedded language within Scala that provides a set of libraries to help hardware designers create highly parameterizable RTL.
FIRRTL on the other hand is a compiler for hardware which allows the user to run FIRRTL passes that can do dead code elimation, circuit analysis, connectivity checks, and much more!
FIRRTL on the other hand is a compiler for hardware which allows the user to run FIRRTL passes that can do dead code elimination, circuit analysis, connectivity checks, and much more!
These two tools in combination allow quick design space exploration and development of new RTL.
Generators

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@@ -17,7 +17,7 @@ Processor Cores
An out-of-order RISC-V core.
See :ref:`Berkeley Out-of-Order Machine (BOOM)` for more information.
Data-Parallel Accelerators
Accelerators
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
**Hwacha**

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@@ -97,7 +97,7 @@ FireSim enables simulations at 1000x-100000x the speed of standard software simu
This is enabled using FPGA-acceleration on F1 instances of the AWS (Amazon Web Services) public cloud.
Therefore FireSim simulation requires to be set-up on the AWS public cloud rather than on our local development machine.
To run an FPGA-accelerated simulation using FireSim, a we need to clone the REBAR repository (or our fork of the REBAR repository) to an AWS EC2, and follow the setup instructions specificied in the FireSim Initial Setup documentation page.
To run an FPGA-accelerated simulation using FireSim, a we need to clone the REBAR repository (or our fork of the REBAR repository) to an AWS EC2, and follow the setup instructions specified in the FireSim Initial Setup documentation page.
After setting up the FireSim environment, we now need to generate a FireSim simulation around our selected digital design.
We will work from within the ``sims/firesim`` directory.

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@@ -3,7 +3,7 @@ Getting Started
These guides will walk you through the basics of the REBAR framework:
- First, we will go over the different configurations avaliable.
- First, we will go over the different configurations available.
- Then, we will walk through adding a custom accelerator.

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@@ -1,11 +1,11 @@
Commericial Software RTL Simulators
Commercial Software RTL Simulators
==============================
VCS
-----------------------
`VCS <https://www.synopsys.com/verification/simulation/vcs.html>`__ is a commercial RTL simulator developed by Synopsys.
It requires commerical licenses.
It requires commercial licenses.
The REBAR framework can compile and execute simulations using VCS.
VCS simulation will generally compile faster than Verilator simulations.
@@ -33,7 +33,7 @@ If you later create your own project, you can use environment variables to build
./simulator-<yourproject>-<yourconfig> ...
If you would like to extract waveforms from the simulation, run the command ``make debug`` instead of just ``make``.
This will generate a vpd file (this is a proprietry waveform representation format used by Synopsys) that can be loaded to vpd-supported waveform viewers.
This will generate a vpd file (this is a proprietary waveform representation format used by Synopsys) that can be loaded to vpd-supported waveform viewers.
If you have Synopsys licenses, we recommend using the DVE waveform viewer.
Please refer to :ref:`Running A Simulation` for a step by step tutorial on how to get a simulator up and running.

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@@ -1,7 +1,7 @@
Simulators
=======================
REBAR provides support and intergration for multiple simulation flows, for various user levels and requirments.
REBAR provides support and integration for multiple simulation flows, for various user levels and requirements.
In the majority of cases during a digital design development process, a simple software RTL simulation will do.
When more advanced full-system evaluation is required, with long running workloads, FPGA-accelerated simulation will then become a preferable solution.
The following pages provide detailed information about the simulation possibilities within the REBAR framework.