From 0305159abf40765c6b8c506c777e3f62f3b6227e Mon Sep 17 00:00:00 2001 From: Steve Reinhardt Date: Sat, 19 May 2007 00:24:34 -0400 Subject: [PATCH] PhysicalMemory has vector of uniform ports instead of one special one. configs/example/memtest.py: PhysicalMemory has vector of uniform ports instead of one special one. Other updates to fix obsolete brokenness. src/mem/physical.cc: src/mem/physical.hh: src/python/m5/objects/PhysicalMemory.py: Have vector of uniform ports instead of one special one. src/python/swig/pyobject.cc: Add comment. --HG-- extra : convert_revision : a4a764dcdcd9720bcd07c979d0ece311fc8cb4f1 --- configs/example/memtest.py | 30 +++++--------- src/mem/physical.cc | 40 ++++++++++++------- src/mem/physical.hh | 3 +- src/python/m5/objects/PhysicalMemory.py | 3 +- src/python/swig/pyobject.cc | 1 + tests/configs/memtest.py | 11 ++--- .../ref/alpha/linux/memtest/config.ini | 21 +++++----- .../50.memtest/ref/alpha/linux/memtest/stdout | 10 +---- 8 files changed, 56 insertions(+), 63 deletions(-) diff --git a/configs/example/memtest.py b/configs/example/memtest.py index e42a92ba1..5300c6fd9 100644 --- a/configs/example/memtest.py +++ b/configs/example/memtest.py @@ -1,4 +1,4 @@ -# Copyright (c) 2006 The Regents of The University of Michigan +# Copyright (c) 2006-2007 The Regents of The University of Michigan # All rights reserved. # # Redistribution and use in source and binary forms, with or without @@ -53,7 +53,7 @@ if args: # ==================== class L1(BaseCache): - latency = 1 + latency = '1ns' block_size = 64 mshrs = 12 tgts_per_mshr = 8 @@ -65,7 +65,7 @@ class L1(BaseCache): class L2(BaseCache): block_size = 64 - latency = 10 + latency = '10ns' mshrs = 92 tgts_per_mshr = 16 write_buffers = 8 @@ -75,17 +75,15 @@ if options.numtesters > 8: print "Error: NUmber of testers limited to 8 because of false sharing" sys,exit(1) -if options.timing: - cpus = [ MemTest(atomic=False, max_loads=options.maxloads, percent_functional=50, - percent_uncacheable=10, progress_interval=1000) - for i in xrange(options.numtesters) ] -else: - cpus = [ MemTest(atomic=True, max_loads=options.maxloads, percent_functional=50, - percent_uncacheable=10, progress_interval=1000) - for i in xrange(options.numtesters) ] +cpus = [ MemTest(atomic=options.timing, max_loads=options.maxloads, + percent_functional=50, percent_uncacheable=10, + progress_interval=1000) + for i in xrange(options.numtesters) ] + # system simulated system = System(cpu = cpus, funcmem = PhysicalMemory(), - physmem = PhysicalMemory(latency = "50ps"), membus = Bus(clock="500GHz", width=16)) + physmem = PhysicalMemory(latency = "50ps"), + membus = Bus(clock="500GHz", width=16)) # l2cache & bus if options.caches: @@ -96,7 +94,6 @@ if options.caches: # connect l2c to membus system.l2c.mem_side = system.membus.port -which_port = 0 # add L1 caches for cpu in cpus: if options.caches: @@ -105,12 +102,7 @@ for cpu in cpus: cpu.l1c.mem_side = system.toL2Bus.port else: cpu.test = system.membus.port - if which_port == 0: - system.funcmem.port = cpu.functional - which_port = 1 - else: - system.funcmem.functional = cpu.functional - + system.funcmem.port = cpu.functional # connect memory to membus system.physmem.port = system.membus.port diff --git a/src/mem/physical.cc b/src/mem/physical.cc index 5d7d7382a..2ca3f1c83 100644 --- a/src/mem/physical.cc +++ b/src/mem/physical.cc @@ -52,7 +52,7 @@ using namespace std; using namespace TheISA; PhysicalMemory::PhysicalMemory(Params *p) - : MemObject(p->name), pmemAddr(NULL), port(NULL), lat(p->latency), _params(p) + : MemObject(p->name), pmemAddr(NULL), lat(p->latency), _params(p) { if (params()->addrRange.size() % TheISA::PageBytes != 0) panic("Memory Size not divisible by page size\n"); @@ -76,9 +76,10 @@ PhysicalMemory::PhysicalMemory(Params *p) void PhysicalMemory::init() { - if (!port) - panic("PhysicalMemory not connected to anything!"); - port->sendStatusChange(Port::RangeChange); + for (PortIterator pi = ports.begin(); pi != ports.end(); ++pi) { + if (*pi) + (*pi)->sendStatusChange(Port::RangeChange); + } } PhysicalMemory::~PhysicalMemory() @@ -335,19 +336,26 @@ PhysicalMemory::doFunctionalAccess(PacketPtr pkt) Port * PhysicalMemory::getPort(const std::string &if_name, int idx) { - if (if_name == "port" && idx == -1) { - if (port != NULL) - panic("PhysicalMemory::getPort: additional port requested to memory!"); - port = new MemoryPort(name() + "-port", this); - return port; - } else if (if_name == "functional") { - /* special port for functional writes at startup. And for memtester */ - return new MemoryPort(name() + "-funcport", this); - } else { + if (if_name != "port") { panic("PhysicalMemory::getPort: unknown port %s requested", if_name); } + + if (idx >= ports.size()) { + ports.resize(idx+1); + } + + if (ports[idx] != NULL) { + panic("PhysicalMemory::getPort: port %d already assigned", idx); + } + + MemoryPort *port = + new MemoryPort(csprintf("%s-port%d", name(), idx), this); + + ports[idx] = port; + return port; } + void PhysicalMemory::recvStatusChange(Port::Status status) { @@ -420,7 +428,11 @@ PhysicalMemory::MemoryPort::recvFunctional(PacketPtr pkt) unsigned int PhysicalMemory::drain(Event *de) { - int count = port->drain(de); + int count = 0; + for (PortIterator pi = ports.begin(); pi != ports.end(); ++pi) { + count += (*pi)->drain(de); + } + if (count) changeState(Draining); else diff --git a/src/mem/physical.hh b/src/mem/physical.hh index f7200b502..e3355d6aa 100644 --- a/src/mem/physical.hh +++ b/src/mem/physical.hh @@ -141,9 +141,10 @@ class PhysicalMemory : public MemObject } uint8_t *pmemAddr; - MemoryPort *port; int pagePtr; Tick lat; + std::vector ports; + typedef std::vector::iterator PortIterator; public: Addr new_page(); diff --git a/src/python/m5/objects/PhysicalMemory.py b/src/python/m5/objects/PhysicalMemory.py index c389e4a7f..83dbc7710 100644 --- a/src/python/m5/objects/PhysicalMemory.py +++ b/src/python/m5/objects/PhysicalMemory.py @@ -4,8 +4,7 @@ from MemObject import * class PhysicalMemory(MemObject): type = 'PhysicalMemory' - port = Port("the access port") - functional = Port("Functional Access Port") + port = VectorPort("the access port") range = Param.AddrRange(AddrRange('128MB'), "Device Address") file = Param.String('', "memory mapped file") latency = Param.Latency('1t', "latency of an access") diff --git a/src/python/swig/pyobject.cc b/src/python/swig/pyobject.cc index 11141fa84..2a5f2b9fb 100644 --- a/src/python/swig/pyobject.cc +++ b/src/python/swig/pyobject.cc @@ -62,6 +62,7 @@ lookupPort(SimObject *so, const std::string &name, int i) /** * Connect the described MemObject ports. Called from Python via SWIG. + * The indices i1 & i2 will be -1 for regular ports, >= 0 for vector ports. */ int connectPorts(SimObject *o1, const std::string &name1, int i1, diff --git a/tests/configs/memtest.py b/tests/configs/memtest.py index 15a4f8f05..6fe244acf 100644 --- a/tests/configs/memtest.py +++ b/tests/configs/memtest.py @@ -57,7 +57,8 @@ cpus = [ MemTest() for i in xrange(nb_cores) ] # system simulated system = System(cpu = cpus, funcmem = PhysicalMemory(), - physmem = PhysicalMemory(), membus = Bus(clock="500GHz", width=16)) + physmem = PhysicalMemory(), + membus = Bus(clock="500GHz", width=16)) # l2cache & bus system.toL2Bus = Bus(clock="500GHz", width=16) @@ -67,18 +68,12 @@ system.l2c.cpu_side = system.toL2Bus.port # connect l2c to membus system.l2c.mem_side = system.membus.port -which_port = 0 # add L1 caches for cpu in cpus: cpu.l1c = L1(size = '32kB', assoc = 4) cpu.l1c.cpu_side = cpu.test cpu.l1c.mem_side = system.toL2Bus.port - if which_port == 0: - system.funcmem.port = cpu.functional - which_port = 1 - else: - system.funcmem.functional = cpu.functional - + system.funcmem.port = cpu.functional # connect memory to membus system.physmem.port = system.membus.port diff --git a/tests/quick/50.memtest/ref/alpha/linux/memtest/config.ini b/tests/quick/50.memtest/ref/alpha/linux/memtest/config.ini index bf66a6947..a6e3a8480 100644 --- a/tests/quick/50.memtest/ref/alpha/linux/memtest/config.ini +++ b/tests/quick/50.memtest/ref/alpha/linux/memtest/config.ini @@ -22,7 +22,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.port +functional=system.funcmem.port[0] test=system.cpu0.l1c.cpu_side [system.cpu0.l1c] @@ -82,7 +82,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[1] test=system.cpu1.l1c.cpu_side [system.cpu1.l1c] @@ -142,7 +142,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[2] test=system.cpu2.l1c.cpu_side [system.cpu2.l1c] @@ -202,7 +202,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[3] test=system.cpu3.l1c.cpu_side [system.cpu3.l1c] @@ -262,7 +262,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[4] test=system.cpu4.l1c.cpu_side [system.cpu4.l1c] @@ -322,7 +322,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[5] test=system.cpu5.l1c.cpu_side [system.cpu5.l1c] @@ -382,7 +382,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[6] test=system.cpu6.l1c.cpu_side [system.cpu6.l1c] @@ -442,7 +442,7 @@ percent_source_unaligned=50 percent_uncacheable=10 progress_interval=10000 trace_addr=0 -functional=system.funcmem.functional +functional=system.funcmem.port[7] test=system.cpu7.l1c.cpu_side [system.cpu7.l1c] @@ -495,8 +495,7 @@ file= latency=1 range=0:134217727 zero=false -functional=system.cpu7.functional -port=system.cpu0.functional +port=system.cpu0.functional system.cpu1.functional system.cpu2.functional system.cpu3.functional system.cpu4.functional system.cpu5.functional system.cpu6.functional system.cpu7.functional [system.l2c] type=BaseCache @@ -543,7 +542,7 @@ bus_id=0 clock=2 responder_set=false width=16 -port=system.l2c.mem_side system.physmem.port +port=system.l2c.mem_side system.physmem.port[0] [system.physmem] type=PhysicalMemory diff --git a/tests/quick/50.memtest/ref/alpha/linux/memtest/stdout b/tests/quick/50.memtest/ref/alpha/linux/memtest/stdout index fb8e47d20..661781580 100644 --- a/tests/quick/50.memtest/ref/alpha/linux/memtest/stdout +++ b/tests/quick/50.memtest/ref/alpha/linux/memtest/stdout @@ -5,15 +5,9 @@ The Regents of The University of Michigan All Rights Reserved -M5 compiled May 14 2007 16:35:50 -M5 started Tue May 15 12:18:46 2007 +M5 compiled May 18 2007 23:44:20 +M5 started Fri May 18 23:46:19 2007 M5 executing on zizzer.eecs.umich.edu command line: build/ALPHA_SE/m5.fast -d build/ALPHA_SE/tests/fast/quick/50.memtest/alpha/linux/memtest tests/run.py quick/50.memtest/alpha/linux/memtest -warning: overwriting port funcmem.functional value cpu1.functional with cpu2.functional -warning: overwriting port funcmem.functional value cpu2.functional with cpu3.functional -warning: overwriting port funcmem.functional value cpu3.functional with cpu4.functional -warning: overwriting port funcmem.functional value cpu4.functional with cpu5.functional -warning: overwriting port funcmem.functional value cpu5.functional with cpu6.functional -warning: overwriting port funcmem.functional value cpu6.functional with cpu7.functional Global frequency set at 1000000000000 ticks per second Exiting @ tick 84350509 because Maximum number of loads reached! -- 2.30.2