Hi,
I want to add a new object in the SLICC code that has some getter functions
to read some values from the command line and use it within the SLICC code,
however, I got the following error:
fatal: system.cp_cntrl0.class_one without default or user set value
In order to add a new object, I have added a structure in
gem5/src/mem/protocol/RubySlicc_Types.sm file with (external = "yes")
structure (NEWCLASS, external = "yes") {
int getX1();
int getX2();
int getX3();
}
and added the equivalent py, cc, and hh files in the structure
gem5/src/mem/ruby/structures following the instructions listed in the
following link:
http://www.lowepower.com/jason/learning_gem5/part2/simobject.html
from m5.params import *
from m5.proxy import *
from m5.SimObject import SimObject
class NEWCLASS(SimObject):
type = 'NEWCLASS'
cxx_class = 'NEWCLASS'
cxx_header = "mem/ruby/structures/NEWCLASS.hh"
X1 = Param.Int(0, "X1")
X2 = Param.Int(0, "X2")
X3 = Param.Int(0, "X3")
-----------------------------
#ifndef __MEM_RUBY_STRUCTURES_NEWCLASS_HH__
#define __MEM_RUBY_STRUCTURES_NEWCLASS_HH__
#include <iostream>
#include <string>
#include "params/NEWCLASS.hh"
#include "sim/sim_object.hh"
class NEWCLASS : public SimObject
{
public:
typedef NEWCLASSParams Params;
NEWCLASS(const Params *p);
~NEWCLASS();
int getX1();
int geX2();
int getX3();
private:
int m_X1;
int m_X2;
int m_X3;
};
#endif // __MEM_RUBY_STRUCTURES_NEWCLASS_HH__
-----------------------------
#include "mem/ruby/structures/NEWCLASS.hh"
using namespace std;
NEWCLASS::NEWCLASS(const Params *p)
: SimObject(p)
{
m_X1 = p->X1;
m_X2 = p->X2;
m_X3 = p->X3;
}
NEWCLASS::~NEWCLASS()
{
}
int
NEWCLASS::getX1()
{
return m_X1;
}
int
NEWCLASS::getX2()
{
return m_X2;
}
int
NEWCLASS::getX3()
{
return m_X3;
}
NEWCLASS*
NEWCLASS::create()
{
return new NEWCLASS(this);
}
Then, I have updated the required sm files by creating an object of the
structure
e.g.
machine(MachineType:TCP, "GPU TCP (L1 Data Cache)")
: GPUCoalescer* coalescer;
Sequencer* sequencer;
bool use_seq_not_coal;
CacheMemory * L1cache;
int TCC_select_num_bits;
Cycles issue_latency := 40; // time to send data down to TCC
Cycles l2_hit_latency := 18;
NEWCLASS* new_class;
....
and using the created object to call the getter functions
xyz + new_class.getX1()
As for the options, I have updated the gem5/configs/example/apu_se.py to
add new options.
# NEWCLASS options
...
parser.add_option("--X1", type="int", default=0, help="")
parser.add_option("--X2", type="int", default=0, help="")
parser.add_option("--X3", type="int", default=0, help="")
....
Additionally, I have updated the following files:
-> gem5/src/mem/ruby/SConscript
MakeInclude('structures/NEWCLASS.hh')
-> gem5/src/mem/ruby/structures/SConscript
SimObject('NEWCLASS.py')
Source('NEWCLASS.cc')
-> gem5/src/mem/slicc/symbols/StateMachine.py
python_class_map = {
"int": "Int",
"NodeID": "Int",
"uint32_t" : "UInt32",
"std::string": "String",
...
"NEWCLASS":"NEWCLASS",
}
Also, I have updated the corresponding py files in the gem5/configs/ruby to
initialize the new object. I created another python class that initialize
the object by the options from the command line.
For example, in gem5/configs/ruby/GPU_RfO.py file, I added the following
class
class CLSONE(CLASSONE, CntrlBase):
def create(self, options, ruby_system, system):
self.X1 = options.X1
self.X2 = options.X2
self.X3 = options.X3
and updated the TCPCntrl class with the following
class TCPCntrl(TCP_Controller, CntrlBase):
def create(self, options, ruby_system, system):
self.version = self.versionCount()
...
self.new_class = CLSONE()
self.new_class.create(options, ruby_system, system)
...
Finally, I build gem5 using the following:
scons -j 17 build/HSAIL_X86/gem5.opt
and when I tried to run the simulator, I got he following error:
fatal: system.cp_cntrl0.class_one without default or user set value
Can you point the cause? From what I understand, the created object needs
to be initialized, however, I don't know where I should initialize other
than what I have already mentioned.
Thanks.
--
Regard,
Mohamed Ibrahim
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