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Remove the read/write tables and coalescing table and introduce a two levels of tables for uncoalesced and coalesced packets. Tokens are granted to GPU instructions to place in uncoalesced table. If tokens are available, the operation always succeeds such that the 'Aliased' status is never returned. Coalesced accesses are placed in the coalesced table while requests are outstanding. Requests to the same address are added as targets to the table similar to how MSHRs operate. Change-Id: I44983610307b638a97472db3576d0a30df2de600 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27429 Reviewed-by: Bradford Beckmann <brad.beckmann@amd.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Bradford Beckmann <brad.beckmann@amd.com> Tested-by: kokoro <noreply+kokoro@google.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, SWIG, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of ARM, NULL, MIPS, POWER, SPARC, or X86. This will build an optimized version of the gem5 binary (gem5.opt) for the the specified architecture. See http://www.gem5.org/documentation/general_docs/building for more details and options. The basic source release includes these subdirectories: - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you will need compiled system firmware (console and PALcode for Alpha), kernel binaries and one or more disk images. If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.