From c27c122afc6b778e67a9c77915fac71730a5a4ef Mon Sep 17 00:00:00 2001 From: Ali Saidi Date: Sun, 26 Mar 2006 21:44:22 -0500 Subject: [PATCH] Add the bus and connector objects to scons change getPort parameter from char* to string Add an extra phase between construction and init called connect SConscript: Add the bus and connector objects to scons cpu/simple/cpu.cc: cpu/simple/cpu.hh: the connection to memory shouldn't be made until we know the memory object exists (e.g. after construction) dev/io_device.hh: change to const string mem/bus.hh: change getPort parameter from char* to string initialize num_interfaces mem/mem_object.hh: change getPort parameter from char* to string mem/physical.cc: mem/physical.hh: change getPort parameter from char* to string get rid of the bus object I created last time python/m5/objects/PhysicalMemory.py: get rid of the bus object I created last time sim/main.cc: sim/sim_object.cc: sim/sim_object.hh: Add an extra phase between construction and init called connect --HG-- extra : convert_revision : 0e994f93374fa72a06d291655c440ff1b8e155a9 --- SConscript | 2 ++ cpu/simple/cpu.cc | 20 ++++++++++---------- cpu/simple/cpu.hh | 1 + dev/io_device.hh | 4 ++-- mem/bus.hh | 4 ++-- mem/mem_object.hh | 2 +- mem/physical.cc | 27 ++++++++++----------------- mem/physical.hh | 9 ++++----- python/m5/objects/PhysicalMemory.py | 1 - sim/main.cc | 4 ++++ sim/sim_object.cc | 20 ++++++++++++++++++++ sim/sim_object.hh | 2 ++ 12 files changed, 58 insertions(+), 38 deletions(-) diff --git a/SConscript b/SConscript index ae77cbbc6..d891f0d6d 100644 --- a/SConscript +++ b/SConscript @@ -88,11 +88,13 @@ base_sources = Split(''' cpu/static_inst.cc cpu/sampler/sampler.cc + mem/connector.cc mem/mem_object.cc mem/page_table.cc mem/physical.cc mem/port.cc mem/translating_port.cc + mem/bus.cc python/pyconfig.cc python/embedded_py.cc diff --git a/cpu/simple/cpu.cc b/cpu/simple/cpu.cc index d188074d4..8a9e41d53 100644 --- a/cpu/simple/cpu.cc +++ b/cpu/simple/cpu.cc @@ -86,6 +86,15 @@ SimpleCPU::TickEvent::TickEvent(SimpleCPU *c, int w) void SimpleCPU::init() { + //Create Memory Ports (conect them up) + Port *mem_dport = mem->getPort(""); + dcachePort.setPeer(mem_dport); + mem_dport->setPeer(&dcachePort); + + Port *mem_iport = mem->getPort(""); + icachePort.setPeer(mem_iport); + mem_iport->setPeer(&icachePort); + BaseCPU::init(); #if FULL_SYSTEM for (int i = 0; i < execContexts.size(); ++i) { @@ -146,20 +155,11 @@ SimpleCPU::CpuPort::recvRetry() } SimpleCPU::SimpleCPU(Params *p) - : BaseCPU(p), icachePort(this), + : BaseCPU(p), mem(p->mem), icachePort(this), dcachePort(this), tickEvent(this, p->width), cpuXC(NULL) { _status = Idle; - //Create Memory Ports (conect them up) - Port *mem_dport = p->mem->getPort(); - dcachePort.setPeer(mem_dport); - mem_dport->setPeer(&dcachePort); - - Port *mem_iport = p->mem->getPort(); - icachePort.setPeer(mem_iport); - mem_iport->setPeer(&icachePort); - #if FULL_SYSTEM cpuXC = new CPUExecContext(this, 0, p->system, p->itb, p->dtb, p->mem); #else diff --git a/cpu/simple/cpu.hh b/cpu/simple/cpu.hh index dc07027f9..43287a33b 100644 --- a/cpu/simple/cpu.hh +++ b/cpu/simple/cpu.hh @@ -105,6 +105,7 @@ class SimpleCPU : public BaseCPU virtual Packet *recvRetry(); }; + MemObject *mem; CpuPort icachePort; CpuPort dcachePort; diff --git a/dev/io_device.hh b/dev/io_device.hh index b25048e3d..ba16372cc 100644 --- a/dev/io_device.hh +++ b/dev/io_device.hh @@ -203,7 +203,7 @@ class PioDevice : public SimObject virtual ~PioDevice(); - virtual Port *getPort(std::string if_name) + virtual Port *getPort(const std::string &if_name) { if (if_name == "pio") return pioPort; @@ -223,7 +223,7 @@ class DmaDevice : public PioDevice DmaDevice(const std::string &name, Platform *p); virtual ~DmaDevice(); - virtual Port *getPort(std::string if_name) + virtual Port *getPort(const std::string &if_name) { if (if_name == "pio") return pioPort; diff --git a/mem/bus.hh b/mem/bus.hh index 7790bdce3..54de8aa1e 100644 --- a/mem/bus.hh +++ b/mem/bus.hh @@ -137,7 +137,7 @@ class Bus : public MemObject public: /** A function used to return the port associated with this bus object. */ - virtual Port *getPort(const char *if_name) + virtual Port *getPort(const std::string &if_name) { // if_name ignored? forced to be empty? int id = num_interfaces++; @@ -145,7 +145,7 @@ class Bus : public MemObject return interfaces[id]; } Bus(const std::string &n) - : MemObject(n) {} + : MemObject(n), num_interfaces(0) {} }; diff --git a/mem/mem_object.hh b/mem/mem_object.hh index 7b3d942a4..58930eccc 100644 --- a/mem/mem_object.hh +++ b/mem/mem_object.hh @@ -48,7 +48,7 @@ class MemObject : public SimObject public: /** Additional function to return the Port of a memory object. */ - virtual Port *getPort(const char *if_name = NULL) = 0; + virtual Port *getPort(const std::string &if_name) = 0; }; #endif //__MEM_MEM_OBJECT_HH__ diff --git a/mem/physical.cc b/mem/physical.cc index e6d1f1662..f16b79a8d 100644 --- a/mem/physical.cc +++ b/mem/physical.cc @@ -69,8 +69,8 @@ PhysicalMemory::MemResponseEvent::description() return "Physical Memory Timing Access respnse event"; } -PhysicalMemory::PhysicalMemory(const string &n, MemObject *bus) - : MemObject(n), memPort(this), base_addr(0), pmem_addr(NULL) +PhysicalMemory::PhysicalMemory(const string &n) + : MemObject(n), base_addr(0), pmem_addr(NULL) { // Hardcoded to 128 MB for now. pmem_size = 1 << 27; @@ -88,14 +88,6 @@ PhysicalMemory::PhysicalMemory(const string &n, MemObject *bus) } page_ptr = 0; - - Port *peer_port; - peer_port = bus->getPort(); - memPort.setPeer(peer_port); - peer_port->setPeer(&memPort); - - - } PhysicalMemory::~PhysicalMemory() @@ -160,10 +152,13 @@ PhysicalMemory::doFunctionalAccess(Packet &pkt) } Port * -PhysicalMemory::getPort(const char *if_name) +PhysicalMemory::getPort(const std::string &if_name) { - if (if_name == NULL) { - return new MemoryPort(this); + if (if_name == "") { + if (port != NULL) + panic("PhysicalMemory::getPort: additional port requested to memory!"); + port = new MemoryPort(this); + return port; } else { panic("PhysicalMemory::getPort: unknown port %s requested", if_name); } @@ -341,7 +336,6 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(PhysicalMemory) SimObjectParam mmu; #endif Param > range; - SimObjectParam bus; END_DECLARE_SIM_OBJECT_PARAMS(PhysicalMemory) @@ -351,8 +345,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(PhysicalMemory) #if FULL_SYSTEM INIT_PARAM(mmu, "Memory Controller"), #endif - INIT_PARAM(range, "Device Address Range"), - INIT_PARAM(bus, "bus object memory connects to") + INIT_PARAM(range, "Device Address Range") END_INIT_SIM_OBJECT_PARAMS(PhysicalMemory) @@ -364,7 +357,7 @@ CREATE_SIM_OBJECT(PhysicalMemory) } #endif - return new PhysicalMemory(getInstanceName(), bus); + return new PhysicalMemory(getInstanceName()); } REGISTER_SIM_OBJECT("PhysicalMemory", PhysicalMemory) diff --git a/mem/physical.hh b/mem/physical.hh index 2087bf763..6d7d809a1 100644 --- a/mem/physical.hh +++ b/mem/physical.hh @@ -69,9 +69,7 @@ class PhysicalMemory : public MemObject virtual int deviceBlockSize(); }; - MemoryPort memPort; - - virtual Port * getPort(const char *if_name); + virtual Port *getPort(const std::string &if_name); int numPorts; @@ -96,6 +94,7 @@ class PhysicalMemory : public MemObject Addr base_addr; Addr pmem_size; uint8_t *pmem_addr; + MemoryPort *port; int page_ptr; public: @@ -103,13 +102,13 @@ class PhysicalMemory : public MemObject uint64_t size() { return pmem_size; } public: - PhysicalMemory(const std::string &n, MemObject *bus); + PhysicalMemory(const std::string &n); virtual ~PhysicalMemory(); public: int deviceBlockSize(); void getAddressRanges(AddrRangeList &rangeList, bool &owner); - void virtual init() { memPort.sendStatusChange(Port::RangeChange); } + void virtual init() { port->sendStatusChange(Port::RangeChange); } // fast back-door memory access for vtophys(), remote gdb, etc. // uint64_t phys_read_qword(Addr addr) const; diff --git a/python/m5/objects/PhysicalMemory.py b/python/m5/objects/PhysicalMemory.py index 7c5a0c517..b0aba1a7d 100644 --- a/python/m5/objects/PhysicalMemory.py +++ b/python/m5/objects/PhysicalMemory.py @@ -5,6 +5,5 @@ class PhysicalMemory(Memory): type = 'PhysicalMemory' range = Param.AddrRange("Device Address") file = Param.String('', "memory mapped file") - bus = Param.MemObject("Bus to attach to") if build_env['FULL_SYSTEM']: mmu = Param.MemoryController(Parent.any, "Memory Controller") diff --git a/sim/main.cc b/sim/main.cc index 6f6143506..aecc171ed 100644 --- a/sim/main.cc +++ b/sim/main.cc @@ -355,6 +355,10 @@ main(int argc, char **argv) echoCommandLine(argc, argv, *outputStream); ParamContext::showAllContexts(*configStream); + // Any objects that can't connect themselves until after construction should + // do so now + SimObject::connectAll(); + // Do a second pass to finish initializing the sim objects SimObject::initAll(); diff --git a/sim/sim_object.cc b/sim/sim_object.cc index f34e17fe6..151ba68a7 100644 --- a/sim/sim_object.cc +++ b/sim/sim_object.cc @@ -87,6 +87,11 @@ SimObject::SimObject(const string &_name) simObjectList.push_back(this); } +void +SimObject::connect() +{ +} + void SimObject::init() { @@ -150,6 +155,21 @@ SimObject::regAllStats() Stats::registerResetCallback(&StatResetCB); } +// +// static function: call connect() on all SimObjects. +// +void +SimObject::connectAll() +{ + SimObjectList::iterator i = simObjectList.begin(); + SimObjectList::iterator end = simObjectList.end(); + + for (; i != end; ++i) { + SimObject *obj = *i; + obj->connect(); + } +} + // // static function: call init() on all SimObjects. // diff --git a/sim/sim_object.hh b/sim/sim_object.hh index 59d9daf45..5db62dd51 100644 --- a/sim/sim_object.hh +++ b/sim/sim_object.hh @@ -78,7 +78,9 @@ class SimObject : public Serializable, protected StartupCallback // initialization pass of all objects. // Gets invoked after construction, before unserialize. virtual void init(); + virtual void connect(); static void initAll(); + static void connectAll(); // register statistics for this object virtual void regStats(); -- 2.30.2