configs, dev, learning-gem5, python, tests: more clarification

This commit contains the rest of the base 2 vs base 10 cache/memory
size clarifications. It also changes the warning message to use
warn(). With these changes, the warning message should now no
longer show up during a fresh compilation of gem5.

Change-Id: Ia63f841bdf045b76473437f41548fab27dc19631

configs/example/arm/baremetal.py

@@ -308,7 +308,7 @@ def main():
         "--mem-size",
         action="store",
         type=str,
-        default="2GB",
+        default="2GiB",
         help="Specify the physical memory size",
     )
     parser.add_argument("--checkpoint", action="store_true")

configs/example/arm/devices.py

@@ -52,7 +52,7 @@ class L1I(L1_ICache):
     response_latency = 1
     mshrs = 4
     tgts_per_mshr = 8
-    size = "48kB"
+    size = "48KiB"
     assoc = 3
 
 
@@ -62,7 +62,7 @@ class L1D(L1_DCache):
     response_latency = 1
     mshrs = 16
     tgts_per_mshr = 16
-    size = "32kB"
+    size = "32KiB"
     assoc = 2
     write_buffers = 16
 
@@ -73,14 +73,14 @@ class L2(L2Cache):
     response_latency = 5
     mshrs = 32
     tgts_per_mshr = 8
-    size = "1MB"
+    size = "1MiB"
     assoc = 16
     write_buffers = 8
     clusivity = "mostly_excl"
 
 
 class L3(Cache):
-    size = "16MB"
+    size = "16MiB"
     assoc = 16
     tag_latency = 20
     data_latency = 20

configs/example/arm/etrace_se.py

@@ -156,7 +156,7 @@ def main():
         "--mem-size",
         action="store",
         type=str,
-        default="2GB",
+        default="2GiB",
         help="Specify the physical memory size",
     )
 

configs/example/arm/fs_bigLITTLE.py

@@ -65,7 +65,7 @@ from devices import (
 
 default_disk = "aarch64-ubuntu-trusty-headless.img"
 
-default_mem_size = "2GB"
+default_mem_size = "2GiB"
 
 
 def _to_ticks(value):

configs/example/arm/ruby_fs.py

@@ -278,10 +278,10 @@ def main():
     parser.add_argument("--num-dirs", type=int, default=1)
     parser.add_argument("--num-l2caches", type=int, default=1)
     parser.add_argument("--num-l3caches", type=int, default=1)
-    parser.add_argument("--l1d_size", type=str, default="64kB")
-    parser.add_argument("--l1i_size", type=str, default="32kB")
-    parser.add_argument("--l2_size", type=str, default="2MB")
-    parser.add_argument("--l3_size", type=str, default="16MB")
+    parser.add_argument("--l1d_size", type=str, default="64KiB")
+    parser.add_argument("--l1i_size", type=str, default="32KiB")
+    parser.add_argument("--l2_size", type=str, default="2MiB")
+    parser.add_argument("--l3_size", type=str, default="16MiB")
     parser.add_argument("--l1d_assoc", type=int, default=2)
     parser.add_argument("--l1i_assoc", type=int, default=2)
     parser.add_argument("--l2_assoc", type=int, default=8)

configs/example/arm/starter_se.py

@@ -189,7 +189,7 @@ def main():
         "--mem-size",
         action="store",
         type=str,
-        default="2GB",
+        default="2GiB",
         help="Specify the physical memory size",
     )
     parser.add_argument(