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authorAndreas Sandberg <Andreas.Sandberg@ARM.com>2013-02-15 17:40:08 -0500
committerAndreas Sandberg <Andreas.Sandberg@ARM.com>2013-02-15 17:40:08 -0500
commit1c7aa665bfc678c33cc05829acc52aebb1d2612c (patch)
treec6819800fa6031fed40dcbc8afe19db81965aa51 /configs/common
parente5dca84c3f15c63fe19195510d342458402a0716 (diff)
downloadgem5-1c7aa665bfc678c33cc05829acc52aebb1d2612c.tar.xz
config: Remove O3 dependencies
The default cache configuration script currently import the O3_ARM_v7a model configuration, which depends on the O3 CPU. This breaks if gem5 has been compiled without O3 support. This changeset removes the dependency by only importing the model if it is requested by the user. As a bonus, it actually removes some code duplication in the configuration scripts.
Diffstat (limited to 'configs/common')
-rw-r--r--configs/common/CacheConfig.py60
1 files changed, 35 insertions, 25 deletions
diff --git a/configs/common/CacheConfig.py b/configs/common/CacheConfig.py
index 563323946..5dd564f0c 100644
--- a/configs/common/CacheConfig.py
+++ b/configs/common/CacheConfig.py
@@ -1,3 +1,15 @@
+# Copyright (c) 2012 ARM Limited
+# All rights reserved
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder. You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
# Copyright (c) 2010 Advanced Micro Devices, Inc.
# All rights reserved.
#
@@ -32,24 +44,30 @@
import m5
from m5.objects import *
from Caches import *
-from O3_ARM_v7a import *
def config_cache(options, system):
+ if options.cpu_type == "arm_detailed":
+ try:
+ from O3_ARM_v7a import *
+ except:
+ print "arm_detailed is unavailable. Did you compile the O3 model?"
+ sys.exit(1)
+
+ dcache_class, icache_class, l2_cache_class = \
+ O3_ARM_v7a_DCache, O3_ARM_v7a_ICache, O3_ARM_v7aL2
+ else:
+ dcache_class, icache_class, l2_cache_class = \
+ L1Cache, L1Cache, L2Cache
+
if options.l2cache:
# Provide a clock for the L2 and the L1-to-L2 bus here as they
# are not connected using addTwoLevelCacheHierarchy. Use the
# same clock as the CPUs, and set the L1-to-L2 bus width to 32
# bytes (256 bits).
- if options.cpu_type == "arm_detailed":
- system.l2 = O3_ARM_v7aL2(clock = options.clock,
- size = options.l2_size,
- assoc = options.l2_assoc,
- block_size=options.cacheline_size)
- else:
- system.l2 = L2Cache(clock = options.clock,
- size = options.l2_size,
- assoc = options.l2_assoc,
- block_size = options.cacheline_size)
+ system.l2 = l2_cache_class(clock=options.clock,
+ size=options.l2_size,
+ assoc=options.l2_assoc,
+ block_size=options.cacheline_size)
system.tol2bus = CoherentBus(clock = options.clock, width = 32)
system.l2.cpu_side = system.tol2bus.master
@@ -57,20 +75,12 @@ def config_cache(options, system):
for i in xrange(options.num_cpus):
if options.caches:
- if options.cpu_type == "arm_detailed":
- icache = O3_ARM_v7a_ICache(size = options.l1i_size,
- assoc = options.l1i_assoc,
- block_size=options.cacheline_size)
- dcache = O3_ARM_v7a_DCache(size = options.l1d_size,
- assoc = options.l1d_assoc,
- block_size=options.cacheline_size)
- else:
- icache = L1Cache(size = options.l1i_size,
- assoc = options.l1i_assoc,
- block_size=options.cacheline_size)
- dcache = L1Cache(size = options.l1d_size,
- assoc = options.l1d_assoc,
- block_size=options.cacheline_size)
+ icache = icache_class(size=options.l1i_size,
+ assoc=options.l1i_assoc,
+ block_size=options.cacheline_size)
+ dcache = dcache_class(size=options.l1d_size,
+ assoc=options.l1d_assoc,
+ block_size=options.cacheline_size)
# When connecting the caches, the clock is also inherited
# from the CPU in question