website: updated the part1/two-levels-caches
Change-Id: Idf9c11efda0269ecde9862fba8ae5b03e693c4b5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/55143
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
diff --git a/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md b/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md
index 79de5a6..76a6107 100644
--- a/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md
+++ b/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md
@@ -243,12 +243,16 @@
```
system.l2cache = L2Cache()
system.l2cache.connectCPUSideBus(system.l2bus)
+system.membus = SystemXBar()
system.l2cache.connectMemSideBus(system.membus)
```
-Everything else in the file stays the same! Now we have a complete
-configuration with a two-level cache hierarchy. If you run the current
-file, `hello` should now finish in 57467000 ticks. The full script can
+Note that `system.membus = SystemXBar()` has been defined before
+`system.l2cache.connectMemSideBus` so we can pass it to
+`system.l2cache.connectMemSideBus`. Everything else in the file
+stays the same! Now we have a complete configuration with a
+two-level cache hierarchy. If you run the current file, `hello`
+should now finish in 57467000 ticks. The full script can
be found in the gem5 source at
[`configs/learning_gem5/part1/two_level.py](https://gem5.googlesource.com/public/gem5/+/refs/heads/stable/configs/learning_gem5/part1/two_level.py).
@@ -275,16 +279,23 @@
import argparse
parser = argparse.ArgumentParser(description='A simple system with 2-level cache.')
-parser.add\_argument("binary", default="", nargs="?", type=str,
+parser.add_argument("binary", default="", nargs="?", type=str,
help="Path to the binary to execute.")
-parser.add\_argument("--l1i_size",
+parser.add_argument("--l1i_size",
help=f"L1 instruction cache size. Default: 16kB.")
-parser.add\_argument("--l1d_size",
+parser.add_argument("--l1d_size",
help="L1 data cache size. Default: Default: 64kB.")
-parser.add\_argument("--l2_size",
+parser.add_argument("--l2_size",
help="L2 cache size. Default: 256kB.")
-options = parser.parse\_args()
+options = parser.parse_args()
+```
+Note that if you wanted to pass the binary file's path the way shown above
+and use it through options, you should specify it as `options.binary`.
+For example:
+
+```
+system.workload = SEWorkload.init_compatible(options.binary)
```
Now, you can run
