Commit Graph

14190 Commits

Author SHA1 Message Date
Matthew Poremba
841e6fe978 arch-vega: Add Vega D16 decodings and fix V_SWAP_B32
Vega adds multiple new D16 instructions which load a byte or short into
the lower or upper 16 bits of a register for packed math. The decoder
table has subDecode tables for FLAT instructions which represents 32
opcodes in each subDecode table. The subDecode table for opcodes 32-63
is missing so it is added here.

The opcode for V_SWAP_B32 is also off by one- In the ISA manual this
instruction is opcode 81, the instruction before is 79, and there is no
opcode 80, so the decoder entry is swapped with the invalid decoding
below it.

Change-Id: I278fea574ea684ccc6302d5b4d0f5dd8813a88ad
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71899
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-29 19:56:56 +00:00
Matthew Poremba
079fc47dc2 dev-amdgpu: Perform frame writes atomically
The PCI read/write functions are atomic functions in gem5, meaning they
expect a response with a latency value on the same simulation Tick. For
reads to a PCI device, the response must also include a data value read
from the device.

The AMDGPU device has a PCI BAR which mirrors the frame buffer memory.
Currently reads are done atomically, but writes are sent to a DMA device
without waiting for a write completion ACK. As a result, it is possible
that writes can be queued in the DMA device long enough that another
read for a queued address arrives. This happens very deterministically
with the AtomicSimpleCPU and causes GPUFS to break with that CPU.

This change makes writes to the frame BAR atomic the same as reads. This
avoids that problem and as a result the AtomicSimpleCPU can now load the
driver for GPUFS simulations.

Change-Id: I9a8e8b172712c78b667ebcec81a0c5d0060234db
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71898
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matthew Poremba <matthew.poremba@amd.com>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
2023-06-29 19:56:49 +00:00
handsomeliu
f54b3e6e75 mem: Support backdoor request in AddrMapper
Change-Id: Iedbe8eb75006ce1b81e85910af848fb8c4cba646
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/69057
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Yu-hsin Wang <yuhsingw@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
2023-06-29 15:11:19 +00:00
Melissa Jost
6d776eb468 resources: Output error message in downloader.py
This allows for the actual error message to be output in addition
to the output gem5 has on ValueErrors and ImportErrors.

Change-Id: Ic52f5646aa41dbf7c217ab27d142c0a18fa24c55
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71859
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-06-28 16:19:59 +00:00
Melissa Jost
3c0c3fb623 resources: Catch ConnectionResourceError in downloading resources
This handles an error we see within GitHub Actions that
occassionally occurs when downloading resources.  We retry in the
same way we do when handling HTTPErrors.

Change-Id: I4dce5d607ccc41ad53b51e39082c486e644d815c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71858
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-06-28 16:19:59 +00:00
Yan Lee
d5bdf6cf79 mem: port: add TracingExtension for debug purpose
TracingExtension contains a stack recording the port names
passed through of the Packet. The target receiving the Packet
can dump out the whole path of this Packet for the debug purpose.
This mechanism can be enabled with the debug flag PortTrace.

Change-Id: Ic11e708b35fdddc4f4b786d91b35fd4def08948c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71538
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Yu-hsin Wang <yuhsingw@google.com>
2023-06-21 02:37:42 +00:00
Bobby R. Bruce
aff1e7b64c stdlib: Refactor gem5 Vision/gem5-resources code
This patch includes several changes to the gem5 tools interface to the
gem5-resources infrastructure. These are:

* The old download and JSON query functions have been removed from the
  downloader module. These functions were used for directly downloading
  and inspecting the resource JSON file, hosted at
  https://resources.gem5.org/resources. This information is now obtained
  via `gem5.client`. If a resources JSON file is specified as a client,
  it should conform to the new schema:
  https//resources.gem5.org/gem5-resources-schema.json. The old schema
  (pre-v23.0) is no longer valid. Tests have been updated to reflect
  this change. Those which tested these old functions have been removed.
* Unused imports have been removed.
* For the resource query functions, and those tasked with obtaining the
  resources, the parameter `gem5_version` has been added. In all cases
  it does the same thing:
    * It will filter results based on compatibility to the
      `gem5_version` specified. If no resources are compatible the
      latest version of that resource is chosen (though a warning is
      thrown).
    * By default it is set to the current gem5 version.
    * It is optional. If `None`, this filtering functionality is not
      carried out.
    * Tests have been updated to fix the version to “develop” so the
      they do not break between versions.
* The `gem5_version` parameters will filter using a logic which will
  base compatibility on the specificity of the gem5-version specified in
  a resource’s data. If a resource has a compatible gem5-version of
  “v18.4” it will be compatible with any minor/hotfix version within the
  v18.4 release (this can be seen as matching on “v18.4.*.*”.) Likewise,
  if a resource has a compatible gem5-version of “v18.4.1” then it’s
  only compatible with the v18.4.1 release but any of it’s hot fix
  releases (“v18.4.1.*”).
* The ‘list_resources’ function has been updated to use the
  “gem5.client” APIs to get resource information from the clients
  (MongoDB or a JSON file). This has been designed to remain backwards
  compatible to as much as is possible, though, due to schema changes,
  the function does search across all versions of gem5.
* `get_resources` function was added to the `AbstractClient`. This is a
   more general function than `get_resource_by_id`. It was
  primarily created to handle the `list_resources` update but is a
  useful update to the API. The `get_resource_by_id` function has been
  altered to function as a wrapped to the `get_resources` function.
* Removed “GEM5_RESOURCE_JSON” code has been removed. This is no longer
  used.
* Tests have been cleaned up a little bit to be easier to read.
* Some docstrings have been updated.

Things that are left TODO with this code:

* The client_wrapper/client/abstract_client abstractions are rather
  pointless. In particular the client_wrapper and client classes could
  be merged.
* The downloader module no longer does much and should have its
  functions merged into other modules.
* With the addition of the `get_resources` function, much of the code in
  the `AbstractClient` could be simplified.

Change-Id: I0ce48e88b93a2b9db53d4749861fa0b5f9472053
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71506
Reviewed-by: Kunal Pai <kunpai@ucdavis.edu>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
(cherry picked from commit 82587ce71b)
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71739
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
2023-06-16 16:43:58 +00:00
Bobby R. Bruce
b22afde3be python: Remove Python 'pipes' module
This is scheduled for removal from Python in 3.13:
https://docs.python.org/3/library/pipes.html.

The 'shlex.quote' function can replace the 'pipes.quote' function used
in "main.py". A special wrapper has been made to account for the Windows
case which 'shlex.quote' doesn't handle.

Change-Id: I9c84605f0ccd8468b9cab6cece6248ef8c2107f0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71678
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
(cherry picked from commit a63d376ecd)
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71740
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
2023-06-16 16:43:40 +00:00
Bobby R. Bruce
29055a0a6a scons,stdlib: Remove deprecated 'distutils' module
The Python module 'distutils' will be removed in Python 3.12:
https://docs.python.org/3/library/distutils.html

This patch removed usage of 'distutils' in the gem5 code base.

Change-Id: I1e3a944446149f3cd6cbf4211a1565b5f74c85a0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71679
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
(cherry picked from commit b182b15f93)
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71741
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
2023-06-16 16:43:26 +00:00
Adrià Armejach
7398e1e401 arch-riscv: fix load reserved store conditional
* According to the manual, load reservations must be cleared on a
    failed or a successful SC attempt.
  * A load reservation can be arbitrarily large. The current
    implementation was reserving something different than cacheBlockSize
    which could lead to problems if snoop addresses are cache block
    aligned. This patch implementation assumes a cacheBlock granularity.
  * Load reservations should also be cleared on faults

Change-Id: I64513534710b5f269260fcb204f717801913e2f5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71558
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Roger Chang <rogerycchang@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-16 06:49:25 +00:00
Hoa Nguyen
13e55e8491 stdlib: Add a prebuilt MESI_Three_Level cache
The cache is modeled after an AMD EPYC cache, but not exactly
like AMD EPYC cache.
- K cores per core complex (CCD), each core has one private split L1,
and one private L2.
- K cores in the same CCD share 1 slice of L3 cache, which is not
a victim cache.
- There can be multiple CCDs, which communicate with each other via
Cross-CCD router. The Cross-CCD rounter is also connected to
directory controllers and dma controllers.
- All links latency are set to 1.

Change-Id: Ib64248bed9155b8e48e5158ffdeebf1f2d770754
Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71598
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
2023-06-15 23:07:47 +00:00
Matthew Poremba
db903f4fd4 arch-vega: Helper methods for SDWA/DPP for VOP2
Many of the outstanding issues with the GPU model are related to
instructions not having SDWA/DPP implementations and executing by
ignoring the special registers leading to incorrect executiong.
Adding SDWA/DPP is current very cumbersome as there is a lot of
boilerplate code.

This changeset adds helper methods for VOP2 with one instruction
changed as an example. This review is intended to get feedback
before applying this change to all VOP2 instructions that support
SDWA/DPP.

Change-Id: I1edbc3f3bb166d34f151545aa9f47a94150e1406
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70738
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-15 23:02:39 +00:00
Yu-hsin Wang
694673f1d7 arch: set multiline re as default in isa_parser
In python3.11, it requires the global specifier should be the first
token of regex. However it's not possible when using ply library.
Instead, we set the rules are multiline regex by default and modifies
those single line rules.

Ref: https://github.com/dabeaz/ply/issues/282

Change-Id: I7bdbfeb97a9dd74f45c1890a76f8cc16100e5a42
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71019
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
2023-06-15 10:04:00 +00:00
Yu-hsin Wang
23a88d0400 fastmodel: only support single line literal when paring project file
In python3.11, it requires the global specifier should be the first
token of regex. However it's not possible when using ply library. In
fastmodel case, we actually don't need to support multiline string
literal. We fix this issue by just making the string literal single
line.

Ref: https://github.com/dabeaz/ply/issues/282

Change-Id: I746b628db7ad4c1d7834f1a1b2c1243cef68aa01
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71018
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
2023-06-15 10:03:47 +00:00
Roger Chang
9a27322c7b arch-riscv: Fix unexpected behavior of float operations in Mac OS
The uint_fast16_t is the integer at least 16 bits size, it can be
32, 64 bits and more. Usually most of the simulations are in the
x86-64 linux host, the size of uint_fast16_t is 64 bits. Therefore,
there is no problem for double precision float operations and it can
pass FloatMM test. However, in the Mac OS, the size of uint_fast16_t
is 16 bits, it will lose the upper bits when converting float
register bits to freg_t and it will generate unexpected results for
FloatMM test.

The change can guarantee that the size of data in freg_t is at least
64 bits and it will not lose any data from floating point to freg_t.

Reference:
https://developer.apple.com/documentation/kernel/uint_fast16_t

https://codebrowser.dev/glibc/glibc/stdlib/stdint.h.html

Change-Id: I3df6610f0903cdee0f56584d6cbdb51ac26c86c8
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71578
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-13 23:20:47 +00:00
Jason Lowe-Power
28777e1114 python: Ignore -s as gem5 option
This enables more compatibility with the normal python binary. This is
needed to get multiprocessing to work on some systems.

Change-Id: Ibb946136d153979bf54a773060010a0ae479a9d1
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71502
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
2023-06-13 21:56:31 +00:00
Roger Chang
0fef2300c0 arch-riscv: Refactor fmax and fmin instructions
Currently fmax and fmin instructions convert source float registers such as
Fs1_bits to float64_t(or float32_t and float16_t) many times in the single
instruction. It is not efficient for the future maintenance of these
instructions.

The change adds non-register float_t intermediate variables fs1 and fs2 to
keep converted results so that we don’t need to do it repeatedly. It also
added an intermediate variable fd for specific float type to assume the upper
bits of the packed float register are all one.

Change-Id: Ic508d5255db6c4b38ca4df6dd805df440c043fff
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71479
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-13 00:09:34 +00:00
Matthew Poremba
c644eae2dd configs,gpu-compute: Kernel dispatch-based exit events
Add two kernel dispatch-based exit events that are useful for limiting
the simulation and enabling debug flags at specific GPU kernels. Since
the KVM CPU typically used with GPUFS is not deterministic, this help
with enabling debug flags when the Tick number may vary. The exit at GPU
kernel option can also limit simulation by only simulating a few hundred
kernels, for example, and exit at a determined point.

Change-Id: I81bae92a80c25fc38c41e999aa662e1417b7a20d
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71418
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
2023-06-08 22:03:47 +00:00
Daniel R. Carvalho
77ac6eacd9 mem-cache: De-virtualize forEachBlk() in tags
Avoid code duplication by using the anyBlk function
with a lambda that always returns false, which forces
all blocks to be visited.

Change-Id: I25527602535c719f46699677a7f70f3e31157f26
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70998
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-08 00:26:02 +00:00
Roger Chang
685a5cd017 scons: Fix grpc protobuf actions
The change will fix the proto import issue and build issue with
--no-duplicate-sources options, more details please reference:
https://gem5-review.googlesource.com/c/public/gem5/+/64491.

Change-Id: I259413f7739f89598dcd42c3f2e1e865cec3de43
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71318
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-06-08 00:17:23 +00:00
Kunal Pai
ffbf73db1d stdlib, tests, configs: Introduce gem5 Vision to resources
This patch makes changes to the stdlib based on the gem5 Vision project.
Firstly, a MongoDB database is supported.
A JSON database's support is continued.
The JSON can either be a local path or a raw GitHub link.

The data for these databases is stored in src/python
under "gem5-config.json".
This will be used by default.
However, the configuration can be overridden:
- by providing a path using the GEM5_CONFIG env variable.
- by placing a gem5-config.json file in the current working directory.

An AbstractClient is an abstract class that implements
searching and sorting relevant to the databases.

Clients is an optional list that can be passed
while defining any Resource class and obtain_resource.
These databases can be defined in the config JSON.

Resources now have versions. This allows for a
single version, e.g., 'x86-ubuntu-boot', to have
multiple versions. As such, the key of a resource is
its ID and Version (e.g., 'x86-ubuntu-boot/v2.1.0').
Different versions of a resource might be compatible
with different versions of gem5.

By default, it picks the latest version compatible with the gem5 Version
of the user.

A gem5 resource schema now has additional fields.
These are:
- source_url: Stores URL of GitHub Source of the resource.
- license: License information of the resource.
- tags: Words to identify a resource better, like hello for hello-world
- example_usage: How to use the resource in a simulation.
- gem5_versions: List of gem5 versions that resource is compatible with.
- resource_version: The version of the resource itself.
- size: The download size of the resource, if it exists.
- code_examples: List of objects.
These objects contain the path to where a resource is
used in gem5 example config scripts,
and if the resource itself is used in tests or not.
- category: Category of the resource, as defined by classes in
src/python/gem5/resources/resource.py.

Some fields have been renamed:
- "name" is changed to "id"
- "documentation" is changed to "description"

Besides these, the schema also supports resource specialization.
It adds fields relevant to a specific resource as specified in
src/python/gem5/resources/resource.py
These changes have been made to better present
information on the new gem5 Resources website.

But, they do not affect the way resources are used by a gem5 user.
This patch is also backwards compatible.
Existing code doesn't break with this new infrastructure.

Also, refs in the tests have been changed to match this new schema.
Tests have been changed to work with the two clients.

Change-Id: Ia9bf47f7900763827fd5e873bcd663cc3ecdba40
Co-authored-by: Kunal Pai <kunpai@ucdavis.edu>
Co-authored-by: Parth Shah <helloparthshah@gmail.com>
Co-authored-by: Harshil Patel <harshilp2107@gmail.com>
Co-authored-by: aarsli <arsli@ucdavis.edu>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70858
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
2023-06-06 03:30:50 +00:00
Giacomo Travaglini
b355baac93 dev-arm: Treat GICv3 reserved addresses as RES0
According to the GIC specification (IHI0069) reserved addresses in the
GIC memory map are treated as RES0.  We allow to disable this behaviour
and panic instead (reserved_res0 = False, which is what we have been
doing so far) to catch development bugs (in gem5 and in the guest SW)

Change-Id: I23f98519c2f256c092a52425735b8792bae7a2c7
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71138
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-05 15:01:59 +00:00
Roger Chang
942a9ea503 stdlib: Add U74VecFU to U74CPU
This change is to elimilate the warning message from U74CPU.

Change-Id: I7a5d0cd0b2955e54ed14fc1ac6f7127bd7f0604b
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71238
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-06-04 23:50:36 +00:00
Xuan Hu
14f919a67e arch-riscv,cpu-minor: Add MinorDefaultVecFU for risc-v v-ext
Change-Id: Id5c5ae5fa1901154cadeb0a4958703f3f15d491f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67295
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-04 23:50:18 +00:00
Roger Chang
5e5e81d1c5 arch-riscv: Check FPU status for c.flwsp c.fldsp c.fswsp c.fsdsp
The change adds the missing FPU checking for these instructions.

Change-Id: I7f2ef89786af0d528f2029f1097cfeac6c7d65f2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71198
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-06-03 00:58:25 +00:00
Bobby R. Bruce
917ced812c stdlib: Fix incorrect path and checks for DRAMsim3
There are three bugs fixed in this patch:

1. The `dram_3_dir` was missing the "dramsim3" directory.
2. Missing `not` when checking if configs is a directory.
3. Missing `not` when checking if input file is a file.

Change-Id: I185f4832c1c2f1ecc4e138c148ad7969ef9b6fd4
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71038
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-06-01 22:45:44 +00:00
Matthew Poremba
ebd5b3e4ae gpu-compute: Gfx version check for FS and SE mode
There is no GPU device in SE mode to get version from and no GPU driver
in FS mode to get version from, so a conditional needs to be added
depending on the mode to get the gfx version.

Change-Id: I33fdafb60d351ebc5148e2248244537fb5bebd31
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71078
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
2023-06-01 00:15:02 +00:00
Yu-hsin Wang
bd1d72f61e fastmodel: add src include path by default
We have some customized protocols in gem5 repository and they require
the include path from src directory. It causes the users of those
protocols need to handle the include path correctly by theirselve. This
is tedious and unstable. We should add the default include path in
SIMGEN command line to prevent issues.

Change-Id: I2a3748646567635d131a8fb4099e02e332691e97
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71118
Reviewed-by: Wei-Han Chen <weihanchen@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-05-31 23:47:30 +00:00
Ayaz Akram
32df25e426 mem: HBMCtrl changes to allow PC data buses to be in different states
This change updates the HBMCtrl such that both pseudo channels
can be in separate states (read or write) at the same time. In
addition, the controller queues are now always split in two
halves for both pseudo channels.

Change-Id: Ifb599e611ad99f6c511baaf245bad2b5c9210a86
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65491
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-26 20:08:00 +00:00
Melissa Jost
65d077d795 base: Output link to common errors page
This change adds a link to the common errors page that outputs
whenever a fatal signal is raised, showing when the program
aborts or segfaults.

Change-Id: I88420a594423570af670b460cfce7c03c4208120
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70978
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Daniel Carvalho <odanrc@yahoo.com.br>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2023-05-26 04:42:25 +00:00
Ayaz Akram
741af7ddae mem: Add a DDR5 memory interface
This change adds a single DDR5 memory inteface.
A DDR5 DIMM contains two physical channels. Therefore,
two instances of this interface should be used to model
a DDR5 DIMM. The configuration includes 3 different speed
bins models. The configuration is tested with different
types of memory traffic using the traffic generator and shows
performance similar to what is observed in existing
literature [1]. One of the key features of DDR5
"same bank refresh" is yet not supported in gem5, but is
expected to improve the performance of the DDR5 model.

[1] Exploration of DDR5 with the Open-Source Simulator DRAMSys.

Change-Id: I5856a10c8dcd92dbecc7fd4dcea0f674b2412dd7
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68257
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-26 03:58:44 +00:00
KUNAL PAI
e0a28b1a27 stdlib: Edit RISCVMatched Configuration
This patch changes the RISCVMatched Cache Hierarchy to
private L1 shared L2.
It also changes the RISCVMatched Core's parameters to
better match hardware performance.
Also, sizes are changed to MiB or KiB instead of MB
or KB, to match the datasheet.
All the changes that deviate from the datasheet and the
ARM HPI CPU (reference for pipeline parameters)
are documented.

The core parameters that are changed are:
    - threadPolicy:
        This is initialized to "SingleThreaded".
    - decodeToExecuteForwardDelay:
        This is changed from 1 to 2 to avoid a PMC address fault.
    - fetch1ToFetch2BackwardDelay:
        This is changed from 1 to 0 to better match hardware performance.
    - fetch2InputBufferSize:
        This is changed from 2 to 1 to better match hardware performance.
    - decodeInputBufferSize:
        This is changed from 3 to 2 to better match hardware performance.
    - decodeToExecuteForwardDelay:
        This is changed from 2 to 1 to better match hardware performance.
    - executeInputBufferSize:
        This is changed from 7 to 4 to better match hardware performance.
    - executeMaxAccessesInMemory:
        This is changed from 2 to 1 to better match hardware performance.
    - executeLSQStoreBufferSize:
        This is changed from 5 to 3 to better match hardware performance.
    - executeBranchDelay:
        This is changed from 1 to 2 to better match hardware performance.
    - enableIdling:
        This is changed to False to better match hardware performance.
    - MemReadFU: changed to 2 cycles from 3 cycles.

The changes in the branch predictor are:

      - BTBEntries:
        This is changed from 16 entries to 32 entries.
      - RASSize:
        This is changed from 6 entries to 12 entries.
      - IndirectSets:
        This is changed from 8 sets to 16 sets.
      - localPredictorSize:
        This is changed from 8192 to 16384.
      - globalPredictorSize:
        This is changed from 8192 to 16384.
      - choicePredictorSize:
        This is changed from 8192 to 16384.
      - localCtrBits:
        This is changed from 2 to 4.
      - globalCtrBits:
        This is changed from 2 to 4.
      - choiceCtrBits:
        This is changed from 2 to 4.

Change-Id: I4235140f33be6a3b529a819ae6a7223cb88bb7ab
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70798
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-05-25 21:42:31 +00:00
Giacomo Travaglini
5095e29c8e arch-arm: Implement FEAT_HCX
This is just making the HCRX_EL2 register read/writable;
trapping behaviour will be implemented with further extensions

Change-Id: Id1ec42a754b7d999782edde3a8ec6c6099e3331e
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70939
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:58 +00:00
Giacomo Travaglini
0fae6e8163 arch-arm: Implement FEAT_EVT
This extension is optional in Armv8.2 but mandatory since Armv8.5
We only implement this for AArch64

Change-Id: I063642ac24d27f0a81ba79b1d38f72468bb130eb
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70938
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-05-25 21:36:58 +00:00
Richard Cooper
9de1443ebb arch-arm: Add support for Armv8.2-I8MM NEON extension.
Add support for the Armv8.2-I8MM NEON extension. This provides the
SUDOT and USDOT mixed-sign SIMD Dot Product instructions, as well as
the SMMLA, UMMLA, and USMMLA SIMD Matrix Multiply-Accumulate
instructions.

For more information please refer to the Arm Architecture Reference
Manual (https://developer.arm.com/documentation/ddi0487/latest/).

Additional Contributors: Giacomo Travaglini

Change-Id: I6fb9318f67cc9d2737079283e1a095630c4d2ad9
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70737
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
eb4f83b178 arch-arm: Add support for Armv8.2-DotProd NEON extension.
Add support for the Armv8.2-DotProd NEON extension. This provides the
SDOT and UDOT SIMD Dot Product instructions.

For more information please refer to the Arm Architecture Reference
Manual (https://developer.arm.com/documentation/ddi0487/latest/).

Change-Id: I4caa3b97a74c65f32421487c55c3e36427194e61
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70736
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
fab3d8a1c1 arch-arm: Fix too long lines in existing Arm NEON instructons.
These lines break the current gem5 coding guidelines.

Change-Id: I587fcb2d75c4ab9de47fa53b4ae96526a20afe3f
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70735
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
d02ea0dfbb arch-arm, cpu, configs: Add new Op Classes for Matrix Multiply insts
Add SimdMatMultAcc and SimdFloatMatMultAcc Op Classes for the SVE
Matrix Multiply Accumulate instructions in the SVE F32MM, F64MM and
I8MM extensions.

Initial latencies have been set to be the same as SimdMultAcc and
SimdFloatMultAcc respectively.

Change-Id: Ifab63a0efbb0ccfbd272245e0b0b055279f66e3a
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70734
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
560df49c28 arch-arm: Declare support for Armv8.2-I8MM.
Sets the appropriate bit in the ID_AA64ZFR0_EL1 sysreg that declares
support for ARMv8.2-I8MM.

This indicates that all pre-requisites for Armv8.2 SVE Int8 matrix
multiplication instructions have been met.

SMMLA, SUDOT, UMMLA, USMMLA, and USDOT instructions are implemented.

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Additional Contributors: Giacomo Travaglini

Change-Id: Id97e1c5de8c23a25336a6b323034e9eca8e598e4
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70733
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
f8b60b7a1d arch-arm: Added Armv8.2-I8MM SVE mixed-sign dot product instrs.
Add support for the SVE mixed sign dot product instructions (USDOT,
SUDOT) required by the Armv8.2 SVE Int8 matrix multiplication
extension (ARMv8.2-I8MM).

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Change-Id: I83841654cee74b940f967b3a37b99d87c01bd92c
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70732
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
9421a46d71 arch-arm: Re-factor Arm decoder for SVE mixed-sign DOT insts.
Re-factored the Arm instruction decoder to add placeholders for the
SVE Integer mixed-sign DOT product instructions. This has involved
moving some existing decode helper functions.

Change-Id: I42b280d4bd1b4ab9d8c633bdc523bd08c281d218
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70731
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
98e67c8610 arch-arm: Add support for Arm SVE Integer Matrix instructions.
Add support for the Arm SVE Integer Matrix Multiply-Accumulate
(SMMLA, USMMLA, UMMLA) instructions. Because the associated SUDOT and
USDOT instructions have not yet been implemented, the SVE Feature ID
register 0 (ID_AA64ZFR0_EL1) has not yet been updated to indicate
support for SVE Int8 matrix multiplication instructions at this time.

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Additional Contributors: Giacomo Travaglini

Change-Id: Ia50e28fae03634cbe04b42a9900bab65a604817f
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70730
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
0f857873f9 arch-arm: Declare support for Armv8.2-F64MM.
Sets the appropriate bit in the ID_AA64ZFR0_EL1 sysreg that declares
support for ARMv8.2-F64MM.

This indicates that all pre-requisites for Armv8.2 SVE FP64
double-precision floating-point matrix multiplication instructions
have been met.

FMMLA, and LD1RO* instructions have been implemented, as well as the
128-bit element variants of TRN1, TRN2, UZP1, UZP2, ZIP1, and ZIP2.

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Additional Contributors: Giacomo Travaglini

Change-Id: Idac3a3ca590e6eb2beb217a40a8c10af1e917440
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70729
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
8bf89d6967 arch-arm: Added 128-bit encodings of SVE TRN, UZP, and ZIP insts.
Add support for the 128-bit element encodings of the TRN1, TRN2, UZP1,
UZP2, ZIP1, and ZIP2 instructions, required by the Armv8.2 SVE
Double-precision floating-point Matrix Multiplication
instructions (ARMv8.2-F64MM).

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Change-Id: I496576340c48410fedb2cf6fc7d1a02e219b3bd4
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70728
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
19e8023043 arch-arm: Support Arm SVE Load-Broadcast Octaword instructions.
Add support for the Arm SVE Load-Broadcast Octaword (LD1RO{B,H,W,D})
instructions. These are similar to the Load-Broadcast
Quadword (LD1RQ{B,H,W,D}) instructions, but work on a 32-byte memory
segment rather than a 16-byte memory segment. Consequently, the LD1ROx
implementations build on the code for the LD1RQx implementations.

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Change-Id: I98ee4f56c8099bf40c9034baa488d318ae57d3aa
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70727
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 21:36:39 +00:00
Richard Cooper
94a629b527 arch-arm: Add support for Arm SVE fmmla instruction.
Add support for the Arm SVE Floating Point Matrix Multiply-Accumulate
(FMMLA) instruction. Both 32-bit element (single precision) and 64-bit
element (double precision) encodings are implemented, but because the
associated required instructions (LD1RO*, etc) have not yet been
implemented, the SVE Feature ID register 0 (ID_AA64ZFR0_EL1) has only
been updated to indicate 32-bit element support at this time.

For more information please refer to the "ARM Architecture Reference
Manual Supplement - The Scalable Vector Extension (SVE), for ARMv8-A"
(https://developer.arm.com/architectures/cpu-architecture/a-profile/
docs/arm-architecture-reference-manual-supplement-armv8-a)

Additional Contributors: Giacomo Travaglini

Change-Id: If3547378ffa48527fe540767399bcc37a5dab524
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70726
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
2023-05-25 21:36:39 +00:00
Matthew Poremba
87ec6919a3 mem: Handle DRAM write queue drain and disabled power down
Write queue drain logic seems off currently. An event is scheduled if
the write queue is empty instead of non-empty. There is no check to see
if draining is complete when bus is in write mode. Finally the power
down check on drain always fails if DRAM powerdown is disabled.

This changeset reverses the drain conditional for the write queue to
schedule an event if the write queue is *not* empty and checks in the
event processing method that the queues are all empty so that
signalDrainDone can be called. Lastly the powerdown state is ignored if
DRAM powerdown is disabled. Powerdown is disabled in the GPU_VIPER
protocol by default. This changeset successfully drains and checkpoints
a GPUFS simulation using GPU_VIPER protocol.

Change-Id: I5459856a694c9054b28677049a06b99b9ad91bbb
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/69917
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
2023-05-25 19:14:46 +00:00
Matthew Poremba
6b4a1020be configs,dev-amdgpu: GPUFS MI200/gfx90a support
Add support for MI200-like device. This includes adding PCI IDs and new
MMIOs for the device, a different MAP_PROCESS packet, and a different
calculation for the number of VGPRs.

Change-Id: I0fb7b3ad928826beaa5386d52a94ba504369cb0d
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70317
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2023-05-25 19:14:32 +00:00
Matthew Poremba
2aa95ccc7d arch-x86: Fix CPUID function 0
This should return the number of standard features, not the number of
extended features.

Change-Id: Ieb3a36d832cee603f1efd39b4f430b5ac0478561
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70778
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
2023-05-25 14:38:09 +00:00
Giacomo Travaglini
dc76c00c9b arch-arm: Add an ArmAllRelease containing every defined extension
This is probably the easiest way to instantiate a release containing
any implemented extension. It is alternatively possible to use the
latest release (e.g. Armv92 as of now).
This could be preferrable for consistency across simulations.
However if users want to always be up to date with development,
using ArmAllRelease will allow them to do so without the need
to change their configuration script

Change-Id: Ibca629e99da9b571f233de9d05a5a9186d02aa99
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70958
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2023-05-25 07:30:48 +00:00