Commit Graph

3 Commits

Author SHA1 Message Date
Bobby R. Bruce
e1601954f0 stdlib: Implement Simpoint Resources
This patches does the following:
- Adds 'SimpointResource' which encapsulates Simpoint data and
  functionality. It replaces the old 'gem5.util.simpoint.SimPoint'
  class. Simpoints can be loaded from gem5-resources using the
  `obtain_resource` function.
- Adds 'SimpointDirectoryResource'. This inherits form
  'SimpointResource'. While 'SimpointResource' takes raw Simpoint data
  via parameters, 'SimpointDirectoryResource' assumes the data exists
  in files, in a directory.
- Updates the
  "configs/example/gem5_library/checkpoints/simpoints-se-checkpoint.py"
  and
  "configs/example/gem5_library/checkpoints/simpoints-se-restory.py"
  example files to utilize this new Simpoint resource classes.

**Note**: While the old "SimPoint" class
("src/python/gem5/util/simpoint.py") is marked as deprecated, it may be
difficult to utilize given updates to the APIs in the gem5 stdlib Cores
and Simulator modules.

Change-Id: I9bed5c643ffc735838c9f22a58c53547941010e7
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67339
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
2023-02-22 19:30:09 +00:00
Bobby R. Bruce
a9b69ee055 stdlib: Add null/None versioning in resources.json
This patch allows for the "version" field in the resources.json file to
be `null` (translated to `None` in the Python JSON package) or not
declared. In this case the resources.json file will be used regardless
as to what version the gem5 binary is set. This is useful for testing
purposes.

Tests have been updated to utilize this where possible.

Change-Id: I9d8ae18cb3e61d58bc822bad30853fa3442cb33f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67337
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
2023-02-22 19:30:09 +00:00
Bobby R. Bruce
4ee724e054 stdlib: Specialize the gem5-resources
This commit specializes the Resource class into specific sub-types.

The `Resource`, `CustomResource` and `CustomDiskImageResource` classes
have been deprecated in favor of the `AbstractResource` subclasses.
Custom Resources can be created via the resource specialization
constructor. Resources can be obtained via the gem5-resource
infrastructure with the `obtain_resource` function.

Fully implemented:

- DiskImageResource
- BinaryResource
- KernelResource
- BootloaderResource
- FileResource
- DirectoryResource

Partially implemented:

- SimpointResource
- CheckpointResource

While the schema of the resource.json file has changed, efforts have
been made to ensure backwards compatibility is maintained during this
transition.

Tests are included in this commit to verify this feature works as
expected.

**Note:** The Simpoint tests are disabled in this commit, to be
reenabled when Simpoint resource specialization is fully incorporated
here:
https://gem5-review.googlesource.com/c/public/gem5/+/67339

Change-Id: I77277ecaffc7abc86db08526aacc0b606ef04fe8
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67175
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
2023-02-22 19:30:09 +00:00