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authorAndreas Hansson <andreas.hansson@arm.com>2015-07-03 10:14:39 -0400
committerAndreas Hansson <andreas.hansson@arm.com>2015-07-03 10:14:39 -0400
commit893533a1264bb369b47f74493adf30ce22829f34 (patch)
tree07c750519f5ac1b972be47a0ca6f68ee517d9f07 /tests
parenta262908acc0a641700a03fcea89c48133f0467cd (diff)
downloadgem5-893533a1264bb369b47f74493adf30ce22829f34.tar.xz
mem: Allow read-only caches and check compliance
This patch adds a parameter to the BaseCache to enable a read-only cache, for example for the instruction cache, or table-walker cache (not for x86). A number of checks are put in place in the code to ensure a read-only cache does not end up with dirty data. A follow-on patch adds suitable read requests to allow a read-only cache to explicitly ask for clean data.
Diffstat (limited to 'tests')
-rw-r--r--tests/configs/base_config.py12
-rw-r--r--tests/configs/x86_generic.py8
2 files changed, 10 insertions, 10 deletions
diff --git a/tests/configs/base_config.py b/tests/configs/base_config.py
index c440d48d9..a3e1e0271 100644
--- a/tests/configs/base_config.py
+++ b/tests/configs/base_config.py
@@ -92,8 +92,8 @@ class BaseSystem(object):
Arguments:
cpu -- CPU instance to work on.
"""
- cpu.addPrivateSplitL1Caches(L1Cache(size='32kB', assoc=1),
- L1Cache(size='32kB', assoc=4))
+ cpu.addPrivateSplitL1Caches(L1_ICache(size='32kB', assoc=1),
+ L1_DCache(size='32kB', assoc=4))
def create_caches_shared(self, system):
"""Add shared caches to a system.
@@ -212,8 +212,8 @@ class BaseSESystemUniprocessor(BaseSESystem):
# The atomic SE configurations do not use caches
if self.mem_mode == "timing":
# @todo We might want to revisit these rather enthusiastic L1 sizes
- cpu.addTwoLevelCacheHierarchy(L1Cache(size='128kB'),
- L1Cache(size='256kB'),
+ cpu.addTwoLevelCacheHierarchy(L1_ICache(size='128kB'),
+ L1_DCache(size='256kB'),
L2Cache(size='2MB'))
def create_caches_shared(self, system):
@@ -256,8 +256,8 @@ class BaseFSSystemUniprocessor(BaseFSSystem):
BaseFSSystem.__init__(self, **kwargs)
def create_caches_private(self, cpu):
- cpu.addTwoLevelCacheHierarchy(L1Cache(size='32kB', assoc=1),
- L1Cache(size='32kB', assoc=4),
+ cpu.addTwoLevelCacheHierarchy(L1_ICache(size='32kB', assoc=1),
+ L1_DCache(size='32kB', assoc=4),
L2Cache(size='4MB', assoc=8))
def create_caches_shared(self, system):
diff --git a/tests/configs/x86_generic.py b/tests/configs/x86_generic.py
index 5dc8702ba..ad3ea31bf 100644
--- a/tests/configs/x86_generic.py
+++ b/tests/configs/x86_generic.py
@@ -81,8 +81,8 @@ class LinuxX86FSSystem(LinuxX86SystemBuilder,
LinuxX86SystemBuilder.__init__(self)
def create_caches_private(self, cpu):
- cpu.addPrivateSplitL1Caches(L1Cache(size='32kB', assoc=1),
- L1Cache(size='32kB', assoc=4),
+ cpu.addPrivateSplitL1Caches(L1_ICache(size='32kB', assoc=1),
+ L1_DCache(size='32kB', assoc=4),
PageTableWalkerCache(),
PageTableWalkerCache())
@@ -100,8 +100,8 @@ class LinuxX86FSSystemUniprocessor(LinuxX86SystemBuilder,
LinuxX86SystemBuilder.__init__(self)
def create_caches_private(self, cpu):
- cpu.addTwoLevelCacheHierarchy(L1Cache(size='32kB', assoc=1),
- L1Cache(size='32kB', assoc=4),
+ cpu.addTwoLevelCacheHierarchy(L1_ICache(size='32kB', assoc=1),
+ L1_DCache(size='32kB', assoc=4),
L2Cache(size='4MB', assoc=8),
PageTableWalkerCache(),
PageTableWalkerCache())