diff options
| -rw-r--r-- | src/mem/ruby/structures/DirectoryMemory.cc | 13 | ||||
| -rw-r--r-- | src/mem/ruby/structures/DirectoryMemory.py | 1 |
2 files changed, 13 insertions, 1 deletions
diff --git a/src/mem/ruby/structures/DirectoryMemory.cc b/src/mem/ruby/structures/DirectoryMemory.cc index f79382c26..ee77931d7 100644 --- a/src/mem/ruby/structures/DirectoryMemory.cc +++ b/src/mem/ruby/structures/DirectoryMemory.cc @@ -1,5 +1,6 @@ /* * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * Copyright (c) 2017 Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -24,6 +25,8 @@ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Lena Olson */ #include "mem/ruby/structures/DirectoryMemory.hh" @@ -33,6 +36,7 @@ #include "debug/RubyStats.hh" #include "mem/ruby/slicc_interface/RubySlicc_Util.hh" #include "mem/ruby/system/RubySystem.hh" +#include "sim/system.hh" using namespace std; @@ -44,7 +48,14 @@ DirectoryMemory::DirectoryMemory(const Params *p) : SimObject(p) { m_version = p->version; - m_size_bytes = p->size; + // In X86, there is an IO gap in the 3-4GB range. + if (p->system->getArch() == Arch::X86ISA && p->size > 0xc0000000){ + // We need to add 1GB to the size for the gap + m_size_bytes = p->size + 0x40000000; + } + else { + m_size_bytes = p->size; + } m_size_bits = floorLog2(m_size_bytes); m_num_entries = 0; m_numa_high_bit = p->numa_high_bit; diff --git a/src/mem/ruby/structures/DirectoryMemory.py b/src/mem/ruby/structures/DirectoryMemory.py index bb9765bdb..2518380b2 100644 --- a/src/mem/ruby/structures/DirectoryMemory.py +++ b/src/mem/ruby/structures/DirectoryMemory.py @@ -40,3 +40,4 @@ class RubyDirectoryMemory(SimObject): # the default value of the numa high bit is specified in the command line # option and must be passed into the directory memory sim object numa_high_bit = Param.Int("numa high bit") + system = Param.System(Parent.any, "system object") |