website: Made changes to learning_gem5 tutorial

Changed variable names in part1_3 to match the files linked
in that tutorial, and changed pointers + references in part2_4
to be in line with files linked in that tutorial.

Change-Id: If59405bd6d2de3710b8eda785b3e28090b20ae11
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/47840
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>

_pages/documentation/learning_gem5/part1/part1_3_cache_config.md

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 f53ca8e..79de5a6 100644
--- a/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md
+++ b/_pages/documentation/learning_gem5/part1/part1_3_cache_config.md
@@ -147,7 +147,7 @@
     raise NotImplementedError
 
 def connectBus(self, bus):
-    self.mem_side = bus.slave
+    self.mem_side = bus.cpu_side_ports
 ```
 
 Next, we have to define a separate `connectCPU` function for the
@@ -173,10 +173,10 @@
 
 ```
 def connectCPUSideBus(self, bus):
-    self.cpu_side = bus.master
+    self.cpu_side = bus.mem_side_ports
 
 def connectMemSideBus(self, bus):
-    self.mem_side = bus.slave
+    self.mem_side = bus.cpu_side_ports
 ```
 
 The full file can be found in the gem5 source at

_pages/documentation/learning_gem5/part2/part2_4_parameters.md

diff --git a/_pages/documentation/learning_gem5/part2/part2_4_parameters.md b/_pages/documentation/learning_gem5/part2/part2_4_parameters.md
index 127d701..4d93ad1 100644
--- a/_pages/documentation/learning_gem5/part2/part2_4_parameters.md
+++ b/_pages/documentation/learning_gem5/part2/part2_4_parameters.md
@@ -68,12 +68,12 @@
 code shows the changes to the `HelloObject` constructor.
 
 ```cpp
-HelloObject::HelloObject(HelloObjectParams *params) :
+HelloObject::HelloObject(const HelloObjectParams &params) :
     SimObject(params),
     event(*this),
-    myName(params->name),
-    latency(params->time_to_wait),
-    timesLeft(params->number_of_fires)
+    myName(params.name),
+    latency(params.time_to_wait),
+    timesLeft(params.number_of_fires)
 {
     DPRINTF(Hello, "Created the hello object with the name %s\n", myName);
 }
@@ -275,9 +275,9 @@
 #include "debug/Hello.hh"
 #include "sim/sim_exit.hh"
 
-GoodbyeObject::GoodbyeObject(GoodbyeObjectParams *params) :
-    SimObject(params), event(*this), bandwidth(params->write_bandwidth),
-    bufferSize(params->buffer_size), buffer(nullptr), bufferUsed(0)
+GoodbyeObject::GoodbyeObject(const GoodbyeObjectParams &params) :
+    SimObject(params), event(*this), bandwidth(params.write_bandwidth),
+    bufferSize(params.buffer_size), buffer(nullptr), bufferUsed(0)
 {
     buffer = new char[bufferSize];
     DPRINTF(Hello, "Created the goodbye object\n");
@@ -436,13 +436,13 @@
 #include "base/misc.hh"
 #include "debug/Hello.hh"
 
-HelloObject::HelloObject(HelloObjectParams *params) :
+HelloObject::HelloObject(HelloObjectParams &params) :
     SimObject(params),
     event(*this),
-    goodbye(params->goodbye_object),
-    myName(params->name),
-    latency(params->time_to_wait),
-    timesLeft(params->number_of_fires)
+    goodbye(params.goodbye_object),
+    myName(params.name),
+    latency(params.time_to_wait),
+    timesLeft(params.number_of_fires)
 {
     DPRINTF(Hello, "Created the hello object with the name %s\n", myName);
     panic_if(!goodbye, "HelloObject must have a non-null GoodbyeObject");