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This patch fixes a recent issue with gcc 4.9 (and possibly more) being
convinced that indices outside the array bounds are used when
initialising the FUPool members.
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Currently, each op class has a parameter issueLat that denotes the cycles after
which another op of the same class can be issued. As of now, this latency can
either be one cycle (fully pipelined) or same as execution latency of the op
(not at all pipelined). The fact that issueLat is a parameter of type Cycles
makes one believe that it can be set to any value. To avoid the confusion, the
parameter is being renamed as 'pipelined' with type boolean. If set to true,
the op would execute in a fully pipelined fashion. Otherwise, it would execute
in an unpipelined fashion.
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This patch changes the IEW drain check to include the FU pool as there
can be instructions that are "stored" in FU completion events and thus
not covered by the existing checks. With this patch, we simply include
a check to see if all the FUs are considered non-busy in the next
tick.
Without this patch, the pc-switcheroo-full regression fails after
minor changes to the cache timing (aligning to clock edge).
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This patch address the most important name shadowing warnings (as
produced when using gcc/clang with -Wshadow). There are many
locations where constructor parameters and function parameters shadow
local variables, but these are left unchanged.
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Previously, the O3 CPU could stop in the middle of a microcode
sequence. This patch makes sure that the pipeline stops when it has
committed a normal instruction or exited from a microcode
sequence. Additionally, it makes sure that the pipeline has no
instructions in flight when it is drained, which should make draining
more robust.
Draining is controlled in the commit stage, which checks if the next
PC after a committed instruction is in microcode. If this isn't the
case, it requests a squash of all instructions after that the
instruction that just committed and immediately signals a drain stall
to the fetch stage. The CPU then continues to execute until the
pipeline and all associated buffers are empty.
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This patch is a first step to using Cycles as a parameter type. The
main affected modules are the CPUs and the Ruby caches. There are
definitely plenty more places that are affected, but this patch serves
as a starting point to making the transition.
An important part of this patch is to actually enable parameters to be
specified as Param.Cycles which involves some changes to params.py.
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This patch adds the necessary flags to the SConstruct and SConscript
files for compiling using clang 2.9 and later (on Ubuntu et al and OSX
XCode 4.2), and also cleans up a bunch of compiler warnings found by
clang. Most of the warnings are related to hidden virtual functions,
comparisons with unsigneds >= 0, and if-statements with empty
bodies. A number of mismatches between struct and class are also
fixed. clang 2.8 is not working as it has problems with class names
that occur in multiple namespaces (e.g. Statistics in
kernel_stats.hh).
clang has a bug (http://llvm.org/bugs/show_bug.cgi?id=7247) which
causes confusion between the container std::set and the function
Packet::set, and this is currently addressed by not including the
entire namespace std, but rather selecting e.g. "using std::vector" in
the appropriate places.
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SimObjects not yet updated:
- Process and subclasses
- BaseCPU and subclasses
The SimObject(const std::string &name) constructor was removed. Subclasses
that still rely on that behavior must call the parent initializer as
: SimObject(makeParams(name))
--HG--
extra : convert_revision : d6faddde76e7c3361ebdbd0a7b372a40941c12ed
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creation and initialization now happens in python. Parameter objects
are generated and initialized by python. The .ini file is now solely for
debugging purposes and is not used in construction of the objects in any
way.
--HG--
extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
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directory and into the normal cpu directory.
src/SConscript:
Split off FuncUnits from old FUPool so I'm not including encumbered code. This was all written by Steve Raasch so it's safe to include in the main tree.
src/cpu/o3/fu_pool.cc:
Include the func unit file that's not in the encumbered directory.
--HG--
extra : convert_revision : 9801c606961dd2d62dba190d13a76069992bf241
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--HG--
extra : convert_revision : 8ad012b1acfe046e6a8a5fb064891d91dadeb2e0
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into zamp.eecs.umich.edu:/z/ktlim2/clean/newmem-merge
src/cpu/checker/o3_cpu_builder.cc:
src/cpu/o3/alpha_cpu.hh:
src/cpu/o3/alpha_cpu_impl.hh:
src/cpu/o3/alpha_dyn_inst_impl.hh:
src/cpu/o3/bpred_unit.cc:
src/cpu/o3/commit.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
src/cpu/o3/lsq_unit_impl.hh:
src/cpu/o3/thread_state.hh:
Hand merge.
--HG--
rename : cpu/activity.cc => src/cpu/activity.cc
rename : cpu/activity.hh => src/cpu/activity.hh
rename : cpu/base_dyn_inst.cc => src/cpu/base_dyn_inst.cc
rename : cpu/checker/cpu.hh => src/cpu/checker/cpu.hh
rename : cpu/checker/cpu_builder.cc => src/cpu/checker/cpu_builder.cc
rename : cpu/checker/exec_context.hh => src/cpu/checker/exec_context.hh
rename : cpu/checker/o3_cpu_builder.cc => src/cpu/checker/o3_cpu_builder.cc
rename : cpu/o3/2bit_local_pred.cc => src/cpu/o3/2bit_local_pred.cc
rename : cpu/o3/2bit_local_pred.hh => src/cpu/o3/2bit_local_pred.hh
rename : cpu/o3/alpha_cpu.hh => src/cpu/o3/alpha_cpu.hh
rename : cpu/o3/alpha_cpu_builder.cc => src/cpu/o3/alpha_cpu_builder.cc
rename : cpu/o3/alpha_cpu_impl.hh => src/cpu/o3/alpha_cpu_impl.hh
rename : cpu/o3/alpha_dyn_inst.hh => src/cpu/o3/alpha_dyn_inst.hh
rename : cpu/o3/alpha_dyn_inst_impl.hh => src/cpu/o3/alpha_dyn_inst_impl.hh
rename : cpu/o3/alpha_params.hh => src/cpu/o3/alpha_params.hh
rename : cpu/o3/bpred_unit.cc => src/cpu/o3/bpred_unit.cc
rename : cpu/o3/bpred_unit.hh => src/cpu/o3/bpred_unit.hh
rename : cpu/o3/bpred_unit_impl.hh => src/cpu/o3/bpred_unit_impl.hh
rename : cpu/o3/comm.hh => src/cpu/o3/comm.hh
rename : cpu/o3/commit.hh => src/cpu/o3/commit.hh
rename : cpu/o3/commit_impl.hh => src/cpu/o3/commit_impl.hh
rename : cpu/o3/cpu.hh => src/cpu/o3/cpu.hh
rename : cpu/o3/cpu_policy.hh => src/cpu/o3/cpu_policy.hh
rename : cpu/o3/decode.hh => src/cpu/o3/decode.hh
rename : cpu/o3/decode_impl.hh => src/cpu/o3/decode_impl.hh
rename : cpu/o3/dep_graph.hh => src/cpu/o3/dep_graph.hh
rename : cpu/o3/fetch.hh => src/cpu/o3/fetch.hh
rename : cpu/o3/fetch_impl.hh => src/cpu/o3/fetch_impl.hh
rename : cpu/o3/fu_pool.cc => src/cpu/o3/fu_pool.cc
rename : cpu/o3/fu_pool.hh => src/cpu/o3/fu_pool.hh
rename : cpu/o3/iew.hh => src/cpu/o3/iew.hh
rename : cpu/o3/iew_impl.hh => src/cpu/o3/iew_impl.hh
rename : cpu/o3/inst_queue.hh => src/cpu/o3/inst_queue.hh
rename : cpu/o3/inst_queue_impl.hh => src/cpu/o3/inst_queue_impl.hh
rename : cpu/o3/lsq.hh => src/cpu/o3/lsq.hh
rename : cpu/o3/lsq_unit.hh => src/cpu/o3/lsq_unit.hh
rename : cpu/o3/lsq_unit_impl.hh => src/cpu/o3/lsq_unit_impl.hh
rename : cpu/o3/mem_dep_unit.hh => src/cpu/o3/mem_dep_unit.hh
rename : cpu/o3/mem_dep_unit_impl.hh => src/cpu/o3/mem_dep_unit_impl.hh
rename : cpu/o3/rename.hh => src/cpu/o3/rename.hh
rename : cpu/o3/rename_impl.hh => src/cpu/o3/rename_impl.hh
rename : cpu/o3/rename_map.hh => src/cpu/o3/rename_map.hh
rename : cpu/o3/rob.hh => src/cpu/o3/rob.hh
rename : cpu/o3/store_set.cc => src/cpu/o3/store_set.cc
rename : cpu/o3/store_set.hh => src/cpu/o3/store_set.hh
rename : cpu/o3/thread_state.hh => src/cpu/o3/thread_state.hh
rename : cpu/o3/tournament_pred.cc => src/cpu/o3/tournament_pred.cc
rename : cpu/o3/tournament_pred.hh => src/cpu/o3/tournament_pred.hh
rename : cpu/ozone/cpu_builder.cc => src/cpu/ozone/cpu_builder.cc
rename : cpu/ozone/ozone_impl.hh => src/cpu/ozone/ozone_impl.hh
rename : cpu/ozone/simple_impl.hh => src/cpu/ozone/simple_impl.hh
rename : cpu/ozone/simple_params.hh => src/cpu/ozone/simple_params.hh
rename : python/m5/objects/AlphaFullCPU.py => src/python/m5/objects/AlphaFullCPU.py
rename : python/m5/objects/OzoneCPU.py => src/python/m5/objects/OzoneCPU.py
extra : convert_revision : b7be30474dd03dd3970e737a9d0489aeb2ead84f
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changing functions within the XCs; changing MemReqPtrs to Requests or Packets where appropriate.
Currently the O3 and Ozone CPUs do not work in the new memory system; I still need to fix up the ports to work and handle responses properly. This check-in is so that the merge between m5 and newmem is no longer outstanding.
src/SConscript:
Need to include FU Pool for new CPU model. I'll try to figure out a cleaner way to handle this in the future.
src/base/traceflags.py:
Include new traces flags, fix up merge mess up.
src/cpu/SConscript:
Include the base_dyn_inst.cc as one of othe sources.
Don't compile the Ozone CPU for now.
src/cpu/base.cc:
Remove an extra } from the merge.
src/cpu/base_dyn_inst.cc:
Fixes to make compiling work. Don't instantiate the OzoneCPU for now.
src/cpu/base_dyn_inst.hh:
src/cpu/o3/2bit_local_pred.cc:
src/cpu/o3/alpha_cpu_builder.cc:
src/cpu/o3/alpha_cpu_impl.hh:
src/cpu/o3/alpha_dyn_inst.hh:
src/cpu/o3/alpha_params.hh:
src/cpu/o3/bpred_unit.cc:
src/cpu/o3/btb.hh:
src/cpu/o3/commit.hh:
src/cpu/o3/commit_impl.hh:
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/free_list.hh:
src/cpu/o3/iew.hh:
src/cpu/o3/iew_impl.hh:
src/cpu/o3/inst_queue.hh:
src/cpu/o3/inst_queue_impl.hh:
src/cpu/o3/regfile.hh:
src/cpu/o3/sat_counter.hh:
src/cpu/op_class.hh:
src/cpu/ozone/cpu.hh:
src/cpu/checker/cpu.cc:
src/cpu/checker/cpu.hh:
src/cpu/checker/exec_context.hh:
src/cpu/checker/o3_cpu_builder.cc:
src/cpu/ozone/cpu_impl.hh:
src/mem/request.hh:
src/cpu/o3/fu_pool.hh:
src/cpu/o3/lsq.hh:
src/cpu/o3/lsq_unit.hh:
src/cpu/o3/lsq_unit_impl.hh:
src/cpu/o3/thread_state.hh:
src/cpu/ozone/back_end.hh:
src/cpu/ozone/dyn_inst.cc:
src/cpu/ozone/dyn_inst.hh:
src/cpu/ozone/front_end.hh:
src/cpu/ozone/inorder_back_end.hh:
src/cpu/ozone/lw_back_end.hh:
src/cpu/ozone/lw_lsq.hh:
src/cpu/ozone/ozone_impl.hh:
src/cpu/ozone/thread_state.hh:
Fixes to get compiling to work.
src/cpu/o3/alpha_cpu.hh:
Fixes to get compiling to work.
Float reg accessors have changed, as well as MemReqPtrs to RequestPtrs.
src/cpu/o3/alpha_dyn_inst_impl.hh:
Fixes to get compiling to work.
Pass in the packet to the completeAcc function.
Fix up syscall function.
--HG--
rename : cpu/activity.cc => src/cpu/activity.cc
rename : cpu/activity.hh => src/cpu/activity.hh
rename : cpu/checker/cpu.cc => src/cpu/checker/cpu.cc
rename : cpu/checker/cpu.hh => src/cpu/checker/cpu.hh
rename : cpu/checker/cpu_builder.cc => src/cpu/checker/cpu_builder.cc
rename : cpu/checker/exec_context.hh => src/cpu/checker/exec_context.hh
rename : cpu/checker/o3_cpu_builder.cc => src/cpu/checker/o3_cpu_builder.cc
rename : cpu/o3/dep_graph.hh => src/cpu/o3/dep_graph.hh
rename : cpu/o3/fu_pool.cc => src/cpu/o3/fu_pool.cc
rename : cpu/o3/fu_pool.hh => src/cpu/o3/fu_pool.hh
rename : cpu/o3/lsq.cc => src/cpu/o3/lsq.cc
rename : cpu/o3/lsq.hh => src/cpu/o3/lsq.hh
rename : cpu/o3/lsq_impl.hh => src/cpu/o3/lsq_impl.hh
rename : cpu/o3/lsq_unit.cc => src/cpu/o3/lsq_unit.cc
rename : cpu/o3/lsq_unit.hh => src/cpu/o3/lsq_unit.hh
rename : cpu/o3/lsq_unit_impl.hh => src/cpu/o3/lsq_unit_impl.hh
rename : cpu/o3/scoreboard.cc => src/cpu/o3/scoreboard.cc
rename : cpu/o3/scoreboard.hh => src/cpu/o3/scoreboard.hh
rename : cpu/o3/thread_state.hh => src/cpu/o3/thread_state.hh
rename : cpu/ozone/back_end.cc => src/cpu/ozone/back_end.cc
rename : cpu/ozone/back_end.hh => src/cpu/ozone/back_end.hh
rename : cpu/ozone/back_end_impl.hh => src/cpu/ozone/back_end_impl.hh
rename : cpu/ozone/cpu_builder.cc => src/cpu/ozone/cpu_builder.cc
rename : cpu/ozone/dyn_inst.cc => src/cpu/ozone/dyn_inst.cc
rename : cpu/ozone/dyn_inst.hh => src/cpu/ozone/dyn_inst.hh
rename : cpu/ozone/dyn_inst_impl.hh => src/cpu/ozone/dyn_inst_impl.hh
rename : cpu/ozone/front_end.cc => src/cpu/ozone/front_end.cc
rename : cpu/ozone/front_end.hh => src/cpu/ozone/front_end.hh
rename : cpu/ozone/front_end_impl.hh => src/cpu/ozone/front_end_impl.hh
rename : cpu/ozone/inorder_back_end.cc => src/cpu/ozone/inorder_back_end.cc
rename : cpu/ozone/inorder_back_end.hh => src/cpu/ozone/inorder_back_end.hh
rename : cpu/ozone/inorder_back_end_impl.hh => src/cpu/ozone/inorder_back_end_impl.hh
rename : cpu/ozone/inst_queue.cc => src/cpu/ozone/inst_queue.cc
rename : cpu/ozone/inst_queue.hh => src/cpu/ozone/inst_queue.hh
rename : cpu/ozone/inst_queue_impl.hh => src/cpu/ozone/inst_queue_impl.hh
rename : cpu/ozone/lsq_unit.cc => src/cpu/ozone/lsq_unit.cc
rename : cpu/ozone/lsq_unit.hh => src/cpu/ozone/lsq_unit.hh
rename : cpu/ozone/lsq_unit_impl.hh => src/cpu/ozone/lsq_unit_impl.hh
rename : cpu/ozone/lw_back_end.cc => src/cpu/ozone/lw_back_end.cc
rename : cpu/ozone/lw_back_end.hh => src/cpu/ozone/lw_back_end.hh
rename : cpu/ozone/lw_back_end_impl.hh => src/cpu/ozone/lw_back_end_impl.hh
rename : cpu/ozone/lw_lsq.cc => src/cpu/ozone/lw_lsq.cc
rename : cpu/ozone/lw_lsq.hh => src/cpu/ozone/lw_lsq.hh
rename : cpu/ozone/lw_lsq_impl.hh => src/cpu/ozone/lw_lsq_impl.hh
rename : cpu/ozone/null_predictor.hh => src/cpu/ozone/null_predictor.hh
rename : cpu/ozone/ozone_impl.hh => src/cpu/ozone/ozone_impl.hh
rename : cpu/ozone/rename_table.cc => src/cpu/ozone/rename_table.cc
rename : cpu/ozone/rename_table.hh => src/cpu/ozone/rename_table.hh
rename : cpu/ozone/rename_table_impl.hh => src/cpu/ozone/rename_table_impl.hh
rename : cpu/ozone/simple_impl.hh => src/cpu/ozone/simple_impl.hh
rename : cpu/ozone/simple_params.hh => src/cpu/ozone/simple_params.hh
rename : cpu/ozone/thread_state.hh => src/cpu/ozone/thread_state.hh
rename : cpu/quiesce_event.cc => src/cpu/quiesce_event.cc
rename : cpu/quiesce_event.hh => src/cpu/quiesce_event.hh
rename : cpu/thread_state.hh => src/cpu/thread_state.hh
rename : python/m5/objects/FUPool.py => src/python/m5/objects/FUPool.py
rename : python/m5/objects/OzoneCPU.py => src/python/m5/objects/OzoneCPU.py
rename : python/m5/objects/SimpleOzoneCPU.py => src/python/m5/objects/SimpleOzoneCPU.py
extra : convert_revision : ca7f0fbf65ee1a70d482fb4eda9a1840c7f9b8f8
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