misc: Coupling gem5 with SystemC TLM2.0

Transaction Level Modeling (TLM2.0) is widely used in industry for creating
virtual platforms (IEEE 1666 SystemC). This patch contains a standard compliant
implementation of an external gem5 port, that enables the usage of gem5 as a
TLM initiator component in SystemC based virtual platforms. Both TLM coding
paradigms loosely timed (b_transport) and aproximately timed (nb_transport) are
supported.

Compared to the original patch a TLM memory manager was added. Furthermore, the
transaction object was removed and for each TLM payload a PacketPointer that
points to the original gem5 packet is added as an TLM extension.  For event
handling single events are now created.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>

1 files changed, 76 insertions, 0 deletions

diff --git a/util/tlm/Makefile b/util/tlm/Makefile
new file mode 100644
index 000000000..1fda3b113
--- /dev/null
+++ b/util/tlm/Makefile
@@ -0,0 +1,76 @@
+# Copyright (c) 2015, University of Kaiserslautern
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+# 1. Redistributions of source code must retain the above copyright notice,
+#    this list of conditions and the following disclaimer.
+# 
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 
+# 3. Neither the name of the copyright holder nor the names of its
+#    contributors may be used to endorse or promote products derived from
+#    this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+# OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 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: Matthias Jung
+
+
+ARCH = ARM
+VARIANT = opt
+#VARIANT = debug
+
+SYSTEMC_INC = /opt/systemc/include
+SYSTEMC_LIB = /opt/systemc/lib-linux64
+
+CXXFLAGS = -I../../build/$(ARCH) -L../../build/$(ARCH)
+CXXFLAGS += -I../systemc/
+CXXFLAGS += -I$(SYSTEMC_INC) -L$(SYSTEMC_LIB)
+CXXFLAGS += -std=c++0x
+CXXFLAGS += -g
+CXXFLAGS += -DSC_INCLUDE_DYNAMIC_PROCESSES -DDEBUG -DTRACING_ON
+
+LIBS = -lgem5_$(VARIANT) -lsystemc
+
+ALL = gem5.$(VARIANT).sc
+
+all: $(ALL)
+
+.cc.o:
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+sc_gem5_control.o: ../systemc/sc_gem5_control.cc \
+	../systemc/sc_gem5_control.hh
+sc_logger.o: ../systemc/sc_logger.cc ../systemc/sc_logger.hh
+sc_module.o: ../systemc/sc_module.cc ../systemc/sc_module.hh
+sc_mm.o: sc_mm.cc sc_mm.hh
+sc_ext.o: sc_ext.cc sc_ext.hh
+sc_port.o: sc_port.cc sc_port.hh
+sc_target.o: sc_target.cc sc_target.hh
+stats.o: ../systemc/stats.cc ../systemc/stats.hh
+main.o: main.cc ../systemc/sc_logger.hh ../systemc/sc_module.hh \
+	../systemc/stats.hh
+
+gem5.$(VARIANT).sc: main.o ../systemc/stats.o ../systemc/sc_gem5_control.o \
+	../systemc/sc_logger.o ../systemc/sc_module.o sc_mm.o sc_ext.o sc_port.o sc_target.o
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)
+
+clean:
+	$(RM) $(ALL)
+	$(RM) *.o
+	$(RM) -r m5out