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authorAli Saidi <saidi@eecs.umich.edu>2004-06-22 13:48:49 -0400
committerAli Saidi <saidi@eecs.umich.edu>2004-06-22 13:48:49 -0400
commit4deb81989496b360500985377e8f8c1a2f017b27 (patch)
tree20e9a164feb1631c965999ba738999abc4b0a691
parent074969f8f16110680de05fca64a6be48aedcdfd8 (diff)
parentc1e58b6bf6b353f9355aafd8ed2cb86e6d00e32a (diff)
downloadgem5-4deb81989496b360500985377e8f8c1a2f017b27.tar.xz
pull from head before pushing linux tree
--HG-- extra : convert_revision : 345f91c5c16c69db22035dc716e82fd77041380f
-rw-r--r--arch/alpha/alpha_memory.cc47
-rw-r--r--arch/alpha/alpha_memory.hh2
-rw-r--r--arch/alpha/ev5.cc5
-rw-r--r--arch/alpha/isa_desc11
-rw-r--r--arch/alpha/isa_traits.hh1
-rw-r--r--base/misc.cc5
-rw-r--r--base/traceflags.py1
-rw-r--r--cpu/simple_cpu/simple_cpu.hh2
-rw-r--r--cpu/static_inst.hh3
-rw-r--r--cpu/trace/reader/ibm_reader.cc120
-rw-r--r--cpu/trace/reader/ibm_reader.hh73
-rw-r--r--cpu/trace/reader/itx_reader.cc198
-rw-r--r--cpu/trace/reader/itx_reader.hh82
-rw-r--r--cpu/trace/reader/m5_reader.cc95
-rw-r--r--cpu/trace/reader/m5_reader.hh67
-rw-r--r--cpu/trace/reader/mem_trace_reader.cc37
-rw-r--r--cpu/trace/reader/mem_trace_reader.hh57
-rw-r--r--cpu/trace/trace_cpu.cc191
-rw-r--r--cpu/trace/trace_cpu.hh151
-rw-r--r--kern/kernel_stats.cc391
-rw-r--r--kern/kernel_stats.hh63
-rw-r--r--sim/main.cc13
-rw-r--r--util/config/m5configbase.py (renamed from util/config/m5config.py)253
23 files changed, 1643 insertions, 225 deletions
diff --git a/arch/alpha/alpha_memory.cc b/arch/alpha/alpha_memory.cc
index d7004b461..f8be89cbe 100644
--- a/arch/alpha/alpha_memory.cc
+++ b/arch/alpha/alpha_memory.cc
@@ -430,12 +430,19 @@ AlphaDTB::regStats()
}
void
-AlphaDTB::fault(Addr vaddr, uint64_t flags, ExecContext *xc) const
+AlphaDTB::fault(MemReqPtr &req, uint64_t flags) const
{
+ ExecContext *xc = req->xc;
+ Addr vaddr = req->vaddr;
uint64_t *ipr = xc->regs.ipr;
- // set fault address and flags
- if (!xc->misspeculating() && !xc->regs.intrlock) {
+ // Set fault address and flags. Even though we're modeling an
+ // EV5, we use the EV6 technique of not latching fault registers
+ // on VPTE loads (instead of locking the registers until IPR_VA is
+ // read, like the EV5). The EV6 approach is cleaner and seems to
+ // work with EV5 PAL code, but not the other way around.
+ if (!xc->misspeculating()
+ && !(req->flags & VPTE) && !(req->flags & NO_FAULT)) {
// set VA register with faulting address
ipr[AlphaISA::IPR_VA] = vaddr;
@@ -447,9 +454,6 @@ AlphaDTB::fault(Addr vaddr, uint64_t flags, ExecContext *xc) const
// set VA_FORM register with faulting formatted address
ipr[AlphaISA::IPR_VA_FORM] =
ipr[AlphaISA::IPR_MVPTBR] | (VA_VPN(vaddr) << 3);
-
- // lock these registers until the VA register is read
- xc->regs.intrlock = true;
}
}
@@ -474,10 +478,8 @@ AlphaDTB::translate(MemReqPtr &req, bool write) const
} else {
// verify that this is a good virtual address
if (!validVirtualAddress(req->vaddr)) {
- fault(req->vaddr,
- ((write ? MM_STAT_WR_MASK : 0) | MM_STAT_BAD_VA_MASK |
- MM_STAT_ACV_MASK),
- req->xc);
+ fault(req, ((write ? MM_STAT_WR_MASK : 0) | MM_STAT_BAD_VA_MASK |
+ MM_STAT_ACV_MASK));
if (write) { write_acv++; } else { read_acv++; }
return DTB_Fault_Fault;
@@ -489,9 +491,7 @@ AlphaDTB::translate(MemReqPtr &req, bool write) const
// only valid in kernel mode
if (DTB_CM_CM(ipr[AlphaISA::IPR_DTB_CM]) !=
AlphaISA::mode_kernel) {
- fault(req->vaddr,
- ((write ? MM_STAT_WR_MASK : 0) | MM_STAT_ACV_MASK),
- req->xc);
+ fault(req, ((write ? MM_STAT_WR_MASK : 0) | MM_STAT_ACV_MASK));
if (write) { write_acv++; } else { read_acv++; }
return DTB_Acv_Fault;
}
@@ -516,9 +516,8 @@ AlphaDTB::translate(MemReqPtr &req, bool write) const
if (!pte) {
// page fault
- fault(req->vaddr,
- ((write ? MM_STAT_WR_MASK : 0) | MM_STAT_DTB_MISS_MASK),
- req->xc);
+ fault(req,
+ (write ? MM_STAT_WR_MASK : 0) | MM_STAT_DTB_MISS_MASK);
if (write) { write_misses++; } else { read_misses++; }
return (req->flags & VPTE) ? Pdtb_Miss_Fault : Ndtb_Miss_Fault;
}
@@ -528,29 +527,25 @@ AlphaDTB::translate(MemReqPtr &req, bool write) const
if (write) {
if (!(pte->xwe & MODE2MASK(mode))) {
// declare the instruction access fault
- fault(req->vaddr, MM_STAT_WR_MASK | MM_STAT_ACV_MASK |
- (pte->fonw ? MM_STAT_FONW_MASK : 0),
- req->xc);
+ fault(req, (MM_STAT_WR_MASK | MM_STAT_ACV_MASK |
+ (pte->fonw ? MM_STAT_FONW_MASK : 0)));
write_acv++;
return DTB_Fault_Fault;
}
if (pte->fonw) {
- fault(req->vaddr, MM_STAT_WR_MASK | MM_STAT_FONW_MASK,
- req->xc);
+ fault(req, MM_STAT_WR_MASK | MM_STAT_FONW_MASK);
write_acv++;
return DTB_Fault_Fault;
}
} else {
if (!(pte->xre & MODE2MASK(mode))) {
- fault(req->vaddr,
- MM_STAT_ACV_MASK |
- (pte->fonr ? MM_STAT_FONR_MASK : 0),
- req->xc);
+ fault(req, (MM_STAT_ACV_MASK |
+ (pte->fonr ? MM_STAT_FONR_MASK : 0)));
read_acv++;
return DTB_Acv_Fault;
}
if (pte->fonr) {
- fault(req->vaddr, MM_STAT_FONR_MASK, req->xc);
+ fault(req, MM_STAT_FONR_MASK);
read_acv++;
return DTB_Fault_Fault;
}
diff --git a/arch/alpha/alpha_memory.hh b/arch/alpha/alpha_memory.hh
index 04dd0dcf1..42bc03ddd 100644
--- a/arch/alpha/alpha_memory.hh
+++ b/arch/alpha/alpha_memory.hh
@@ -112,7 +112,7 @@ class AlphaDTB : public AlphaTLB
Stats::Formula accesses;
protected:
- void fault(Addr pc, uint64_t flags, ExecContext *xc) const;
+ void fault(MemReqPtr &req, uint64_t flags) const;
public:
AlphaDTB(const std::string &name, int size);
diff --git a/arch/alpha/ev5.cc b/arch/alpha/ev5.cc
index ecf66f4f5..d2ca71b3a 100644
--- a/arch/alpha/ev5.cc
+++ b/arch/alpha/ev5.cc
@@ -162,6 +162,7 @@ AlphaISA::zeroRegisters(XC *xc)
void
ExecContext::ev5_trap(Fault fault)
{
+ DPRINTF(Fault, "Fault %s\n", FaultName(fault));
Stats::recordEvent(csprintf("Fault %s", FaultName(fault)));
assert(!misspeculating());
@@ -302,11 +303,7 @@ ExecContext::readIpr(int idx, Fault &fault)
break;
case AlphaISA::IPR_VA:
- // SFX: unlocks interrupt status registers
retval = ipr[idx];
-
- if (!misspeculating())
- regs.intrlock = false;
break;
case AlphaISA::IPR_VA_FORM:
diff --git a/arch/alpha/isa_desc b/arch/alpha/isa_desc
index 080699ddb..94f5d9bc3 100644
--- a/arch/alpha/isa_desc
+++ b/arch/alpha/isa_desc
@@ -1023,7 +1023,7 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, postacc_code = '',
# and memory access flags (handled here).
# Would be nice to autogenerate this list, but oh well.
- valid_mem_flags = ['LOCKED', 'EVICT_NEXT', 'PF_EXCLUSIVE']
+ valid_mem_flags = ['LOCKED', 'NO_FAULT', 'EVICT_NEXT', 'PF_EXCLUSIVE']
inst_flags = []
mem_flags = []
for f in flags:
@@ -1072,7 +1072,7 @@ def format LoadOrPrefetch(ea_code, memacc_code, *pf_flags) {{
# Declare the prefetch instruction object.
# convert flags from tuple to list to make them mutable
- pf_flags = list(pf_flags) + ['IsMemRef', 'IsLoad', 'IsDataPrefetch', 'MemReadOp']
+ pf_flags = list(pf_flags) + ['IsMemRef', 'IsLoad', 'IsDataPrefetch', 'MemReadOp', 'NO_FAULT']
(pf_header_output, pf_decoder_output, _, pf_exec_output) = \
LoadStoreBase(name, Name + 'Prefetch', ea_code, '',
@@ -2391,9 +2391,10 @@ decode OPCODE default Unknown::unknown() {
}
format MiscPrefetch {
- 0xf800: wh64({{ EA = Rb; }},
- {{ xc->writeHint(EA, 64); }},
- IsMemRef, IsStore, MemWriteOp);
+ 0xf800: wh64({{ EA = Rb & ~ULL(63); }},
+ {{ xc->writeHint(EA, 64, memAccessFlags); }},
+ IsMemRef, IsDataPrefetch, IsStore, MemWriteOp,
+ NO_FAULT);
}
format BasicOperate {
diff --git a/arch/alpha/isa_traits.hh b/arch/alpha/isa_traits.hh
index 179e9897f..6559368e4 100644
--- a/arch/alpha/isa_traits.hh
+++ b/arch/alpha/isa_traits.hh
@@ -153,7 +153,6 @@ class AlphaISA
#ifdef FULL_SYSTEM
IntReg palregs[NumIntRegs]; // PAL shadow registers
InternalProcReg ipr[NumInternalProcRegs]; // internal processor regs
- int intrlock; // interrupt register lock flag
int intrflag; // interrupt flag
bool pal_shadow; // using pal_shadow registers
#endif // FULL_SYSTEM
diff --git a/base/misc.cc b/base/misc.cc
index 075ed2af8..0c459352f 100644
--- a/base/misc.cc
+++ b/base/misc.cc
@@ -61,11 +61,6 @@ __panic(const string &format, cp::ArgList &args, const char *func,
delete &args;
-#if TRACING_ON
- // dump trace buffer, if there is one
- Trace::theLog.dump(cerr);
-#endif
-
abort();
}
diff --git a/base/traceflags.py b/base/traceflags.py
index 3d7623965..e26fcd1fe 100644
--- a/base/traceflags.py
+++ b/base/traceflags.py
@@ -67,6 +67,7 @@ baseFlags = [
'AlphaConsole',
'Flow',
'Interrupt',
+ 'Fault',
'Cycle',
'Loader',
'MMU',
diff --git a/cpu/simple_cpu/simple_cpu.hh b/cpu/simple_cpu/simple_cpu.hh
index 6639dbc1a..3692ab511 100644
--- a/cpu/simple_cpu/simple_cpu.hh
+++ b/cpu/simple_cpu/simple_cpu.hh
@@ -253,7 +253,7 @@ class SimpleCPU : public BaseCPU
// need to do this...
}
- void writeHint(Addr addr, int size)
+ void writeHint(Addr addr, int size, unsigned flags)
{
// need to do this...
}
diff --git a/cpu/static_inst.hh b/cpu/static_inst.hh
index 9a0425c8f..0315ab7a9 100644
--- a/cpu/static_inst.hh
+++ b/cpu/static_inst.hh
@@ -72,8 +72,7 @@ class StaticInstBase : public RefCounted
/// unconditional branches, memory barriers) or both (e.g., an
/// FP/int conversion).
/// - If IsMemRef is set, then exactly one of IsLoad or IsStore
- /// will be set. Prefetches are marked as IsLoad, even if they
- /// prefetch exclusive copies.
+ /// will be set.
/// - If IsControl is set, then exactly one of IsDirectControl or
/// IsIndirect Control will be set, and exactly one of
/// IsCondControl or IsUncondControl will be set.
diff --git a/cpu/trace/reader/ibm_reader.cc b/cpu/trace/reader/ibm_reader.cc
new file mode 100644
index 000000000..439931dba
--- /dev/null
+++ b/cpu/trace/reader/ibm_reader.cc
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Declaration of a IBM memory trace format reader.
+ */
+#include <sstream>
+
+#include "cpu/trace/reader/ibm_reader.hh"
+#include "sim/builder.hh"
+#include "base/misc.hh" // for fatal
+
+using namespace std;
+
+IBMReader::IBMReader(const string &name, const string &filename)
+ : MemTraceReader(name)
+{
+ if (strcmp((filename.c_str() + filename.length() -3), ".gz") == 0) {
+ // Compressed file, need to use a pipe to gzip.
+ stringstream buf;
+ buf << "gzip -d -c " << filename << endl;
+ trace = popen(buf.str().c_str(), "r");
+ } else {
+ trace = fopen(filename.c_str(), "rb");
+ }
+ if (!trace) {
+ fatal("Can't open file %s", filename);
+ }
+}
+
+Tick
+IBMReader::getNextReq(MemReqPtr &req)
+{
+ MemReqPtr tmp_req;
+
+ int c = getc(trace);
+ if (c != EOF) {
+ tmp_req = new MemReq();
+ //int cpu_id = (c & 0xf0) >> 4;
+ int type = c & 0x0f;
+ // We have L1 miss traces, so all accesses are 128 bytes
+ tmp_req->size = 128;
+
+ tmp_req->paddr = 0;
+ for (int i = 2; i >= 0; --i) {
+ c = getc(trace);
+ if (c == EOF) {
+ fatal("Unexpected end of file");
+ }
+ tmp_req->paddr |= ((c & 0xff) << (8 * i));
+ }
+ tmp_req->paddr = tmp_req->paddr << 7;
+
+ switch(type) {
+ case IBM_COND_EXCLUSIVE_FETCH:
+ case IBM_READ_ONLY_FETCH:
+ tmp_req->cmd = Read;
+ break;
+ case IBM_EXCLUSIVE_FETCH:
+ case IBM_FETCH_NO_DATA:
+ tmp_req->cmd = Write;
+ break;
+ case IBM_INST_FETCH:
+ tmp_req->cmd = Read;
+ break;
+ default:
+ fatal("Unknown trace entry type.");
+ }
+
+ }
+ req = tmp_req;
+ return 0;
+}
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(IBMReader)
+
+ Param<string> filename;
+
+END_DECLARE_SIM_OBJECT_PARAMS(IBMReader)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(IBMReader)
+
+ INIT_PARAM(filename, "trace file")
+
+END_INIT_SIM_OBJECT_PARAMS(IBMReader)
+
+
+CREATE_SIM_OBJECT(IBMReader)
+{
+ return new IBMReader(getInstanceName(), filename);
+}
+
+REGISTER_SIM_OBJECT("IBMReader", IBMReader)
diff --git a/cpu/trace/reader/ibm_reader.hh b/cpu/trace/reader/ibm_reader.hh
new file mode 100644
index 000000000..0f14da24d
--- /dev/null
+++ b/cpu/trace/reader/ibm_reader.hh
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Definition of a IBM memory trace format reader.
+ */
+
+#ifndef __IBM_READER_HH__
+#define __IBM_READER_HH__
+
+#include <stdio.h>
+#include "cpu/trace/reader/mem_trace_reader.hh"
+#include "mem/mem_req.hh"
+
+/**
+ * A memory trace reader for the IBM memory trace format.
+ */
+class IBMReader : public MemTraceReader
+{
+ /** IBM trace file. */
+ FILE* trace;
+
+ enum IBMType {
+ IBM_INST_FETCH,
+ IBM_READ_ONLY_FETCH,
+ IBM_COND_EXCLUSIVE_FETCH,
+ IBM_EXCLUSIVE_FETCH,
+ IBM_FETCH_NO_DATA
+ };
+
+ public:
+ /**
+ * Construct an IBMReader.
+ */
+ IBMReader(const std::string &name, const std::string &filename);
+
+ /**
+ * Read the next request from the trace. Returns the request in the
+ * provided MemReqPtr and the cycle of the request in the return value.
+ * @param req Return the next request from the trace.
+ * @return IBM traces don't store timing information, return 0
+ */
+ virtual Tick getNextReq(MemReqPtr &req);
+};
+
+#endif //__IBM_READER_HH__
+
diff --git a/cpu/trace/reader/itx_reader.cc b/cpu/trace/reader/itx_reader.cc
new file mode 100644
index 000000000..54bbbc4ea
--- /dev/null
+++ b/cpu/trace/reader/itx_reader.cc
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Declaration of a Intel ITX memory trace format reader.
+ */
+#include <sstream>
+
+#include "cpu/trace/reader/itx_reader.hh"
+#include "sim/builder.hh"
+#include "base/misc.hh" // for fatal
+
+using namespace std;
+
+ITXReader::ITXReader(const string &name, const string &filename)
+ : MemTraceReader(name)
+{
+ if (strcmp((filename.c_str() + filename.length() -3), ".gz") == 0) {
+ // Compressed file, need to use a pipe to gzip.
+ stringstream buf;
+ buf << "gzip -d -c " << filename << endl;
+ trace = popen(buf.str().c_str(), "r");
+ } else {
+ trace = fopen(filename.c_str(), "rb");
+ }
+ if (!trace) {
+ fatal("Can't open file %s", filename);
+ }
+ traceFormat = 0;
+ int c;
+ for (int i = 0; i < 4; ++i) {
+ c = getc(trace);
+ if (c == EOF) {
+ fatal("Unexpected end of trace file.");
+ }
+ traceFormat |= (c & 0xff) << (8 * i);
+ }
+ if (traceFormat > 2)
+ fatal("Invalid trace format.");
+}
+
+Tick
+ITXReader::getNextReq(MemReqPtr &req)
+{
+ MemReqPtr tmp_req = new MemReq();
+ bool phys_val;
+ do {
+ int c = getc(trace);
+ if (c != EOF) {
+ // Decode first byte
+ // phys_val<1> | type <2:0> | size <3:0>
+ phys_val = c & 0x80;
+ tmp_req->size = (c & 0x0f) + 1;
+ int type = (c & 0x70) >> 4;
+
+ // Could be a compressed instruction entry, expand if necessary
+ if (type == ITXCodeComp) {
+ if (traceFormat != 2) {
+ fatal("Compressed code entry in non CompCode trace.");
+ }
+ if (!codeVirtValid) {
+ fatal("Corrupt CodeComp entry.");
+ }
+
+ tmp_req->vaddr = codeVirtAddr;
+ codeVirtAddr += tmp_req->size;
+ if (phys_val) {
+ if (!codePhysValid) {
+ fatal("Corrupt CodeComp entry.");
+ }
+ tmp_req->paddr = codePhysAddr;
+ if (((tmp_req->paddr & 0xfff) + tmp_req->size) & ~0xfff) {
+ // Crossed page boundary, next physical address is
+ // invalid
+ codePhysValid = false;
+ } else {
+ codePhysAddr += tmp_req->size;
+ }
+ } else {
+ codePhysValid = false;
+ }
+ type = ITXCode;
+ tmp_req->cmd = Read;
+ } else {
+ // Normal entry
+ tmp_req->vaddr = 0;
+ for (int i = 0; i < 4; ++i) {
+ c = getc(trace);
+ if (c == EOF) {
+ fatal("Unexpected end of trace file.");
+ }
+ tmp_req->vaddr |= (c & 0xff) << (8 * i);
+ }
+ if (type == ITXCode) {
+ codeVirtAddr = tmp_req->vaddr + tmp_req->size;
+ codeVirtValid = true;
+ }
+ tmp_req->paddr = 0;
+ if (phys_val) {
+ c = getc(trace);
+ if (c == EOF) {
+ fatal("Unexpected end of trace file.");
+ }
+ // Get the page offset from the virtual address.
+ tmp_req->paddr = tmp_req->vaddr & 0xfff;
+ tmp_req->paddr |= (c & 0xf0) << 8;
+ for (int i = 2; i < 4; ++i) {
+ c = getc(trace);
+ if (c == EOF) {
+ fatal("Unexpected end of trace file.");
+ }
+ tmp_req->paddr |= (c & 0xff) << (8 * i);
+ }
+ if (type == ITXCode) {
+ if (((tmp_req->paddr & 0xfff) + tmp_req->size)
+ & ~0xfff) {
+ // Crossing the page boundary, next physical
+ // address isn't valid
+ codePhysValid = false;
+ } else {
+ codePhysAddr = tmp_req->paddr + tmp_req->size;
+ codePhysValid = true;
+ }
+ }
+ } else if (type == ITXCode) {
+ codePhysValid = false;
+ }
+ switch(type) {
+ case ITXRead:
+ tmp_req->cmd = Read;
+ break;
+ case ITXWrite:
+ tmp_req->cmd = Write;
+ break;
+ case ITXCode:
+ tmp_req->cmd = Read;
+ break;
+ default:
+ fatal("Unknown ITX type");
+ }
+ }
+ } else {
+ // EOF need to return a null request
+ MemReqPtr null_req;
+ req = null_req;
+ return 0;
+ }
+ } while (!phys_val);
+ req = tmp_req;
+ return 0;
+}
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(ITXReader)
+
+ Param<string> filename;
+
+END_DECLARE_SIM_OBJECT_PARAMS(ITXReader)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(ITXReader)
+
+ INIT_PARAM(filename, "trace file")
+
+END_INIT_SIM_OBJECT_PARAMS(ITXReader)
+
+
+CREATE_SIM_OBJECT(ITXReader)
+{
+ return new ITXReader(getInstanceName(), filename);
+}
+
+REGISTER_SIM_OBJECT("ITXReader", ITXReader)
diff --git a/cpu/trace/reader/itx_reader.hh b/cpu/trace/reader/itx_reader.hh
new file mode 100644
index 000000000..ff74062ea
--- /dev/null
+++ b/cpu/trace/reader/itx_reader.hh
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Definition of a Intel ITX memory trace format reader.
+ */
+
+#ifndef __ITX_READER_HH__
+#define __ITX_READER_HH__
+
+#include <stdio.h>
+
+#include "cpu/trace/reader/mem_trace_reader.hh"
+#include "mem/mem_req.hh"
+
+
+/**
+ * A memory trace reader for the Intel ITX memory trace format.
+ */
+class ITXReader : public MemTraceReader
+{
+ /** Trace file. */
+ FILE *trace;
+
+ bool codeVirtValid;
+ Addr codeVirtAddr;
+ bool codePhysValid;
+ Addr codePhysAddr;
+
+ int traceFormat;
+
+ enum ITXType {
+ ITXRead,
+ ITXWrite,
+ ITXWriteback,
+ ITXCode,
+ ITXCodeComp
+ };
+
+ public:
+ /**
+ * Construct an ITXReader.
+ */
+ ITXReader(const std::string &name, const std::string &filename);
+
+ /**
+ * Read the next request from the trace. Returns the request in the
+ * provided MemReqPtr and the cycle of the request in the return value.
+ * @param req Return the next request from the trace.
+ * @return ITX traces don't store timing information, return 0
+ */
+ virtual Tick getNextReq(MemReqPtr &req);
+};
+
+#endif //__ITX_READER_HH__
+
diff --git a/cpu/trace/reader/m5_reader.cc b/cpu/trace/reader/m5_reader.cc
new file mode 100644
index 000000000..a1ada38a2
--- /dev/null
+++ b/cpu/trace/reader/m5_reader.cc
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Declaration of a memory trace reader for a M5 memory trace.
+ */
+
+#include "cpu/trace/reader/m5_reader.hh"
+#include "mem/trace/m5_format.hh"
+#include "mem/mem_cmd.hh"
+#include "sim/builder.hh"
+
+using namespace std;
+
+M5Reader::M5Reader(const string &name, const string &filename)
+ : MemTraceReader(name)
+{
+ traceFile.open(filename.c_str(), ios::binary);
+}
+
+Tick
+M5Reader::getNextReq(MemReqPtr &req)
+{
+ M5Format ref;
+
+ MemReqPtr tmp_req;
+ // Need to read EOF char before eof() will return true.
+ traceFile.read((char*) &ref, sizeof(ref));
+ if (!traceFile.eof()) {
+ //traceFile.read((char*) &ref, sizeof(ref));
+ int gcount = traceFile.gcount();
+ assert(gcount != 0 || traceFile.eof());
+ assert(gcount == sizeof(ref));
+ assert(ref.cmd < 12);
+ tmp_req = new MemReq();
+ tmp_req->paddr = ref.paddr;
+ tmp_req->asid = ref.asid;
+ // Assume asid == thread_num
+ tmp_req->thread_num = ref.asid;
+ tmp_req->cmd = (MemCmdEnum)ref.cmd;
+ tmp_req->size = ref.size;
+ tmp_req->dest = ref.dest;
+ } else {
+ ref.cycle = 0;
+ }
+ req = tmp_req;
+ return ref.cycle;
+}
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(M5Reader)
+
+ Param<string> filename;
+
+END_DECLARE_SIM_OBJECT_PARAMS(M5Reader)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(M5Reader)
+
+ INIT_PARAM(filename, "trace file")
+
+END_INIT_SIM_OBJECT_PARAMS(M5Reader)
+
+
+CREATE_SIM_OBJECT(M5Reader)
+{
+ return new M5Reader(getInstanceName(), filename);
+}
+
+REGISTER_SIM_OBJECT("M5Reader", M5Reader)
diff --git a/cpu/trace/reader/m5_reader.hh b/cpu/trace/reader/m5_reader.hh
new file mode 100644
index 000000000..d78787461
--- /dev/null
+++ b/cpu/trace/reader/m5_reader.hh
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Definition of a memory trace reader for a M5 memory trace.
+ */
+
+#ifndef __M5_READER_HH__
+#define __M5_READER_HH__
+
+#include <fstream>
+
+#include "cpu/trace/reader/mem_trace_reader.hh"
+
+/**
+ * A memory trace reader for an M5 memory trace. @sa M5Writer.
+ */
+class M5Reader : public MemTraceReader
+{
+ /** The traceFile. */
+ std::ifstream traceFile;
+
+ std::string fn;
+
+ public:
+ /**
+ * Construct an M5 memory trace reader.
+ */
+ M5Reader(const std::string &name, const std::string &filename);
+
+
+ /**
+ * Read the next request from the trace. Returns the request in the
+ * provided MemReqPtr and the cycle of the request in the return value.
+ * @param req Return the next request from the trace.
+ * @return The cycle the reference was started.
+ */
+ virtual Tick getNextReq(MemReqPtr &req);
+};
+
+#endif // __M5_READER_HH__
diff --git a/cpu/trace/reader/mem_trace_reader.cc b/cpu/trace/reader/mem_trace_reader.cc
new file mode 100644
index 000000000..c6fc53f51
--- /dev/null
+++ b/cpu/trace/reader/mem_trace_reader.cc
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * SimObject Declaration of pure virtual MemTraceReader class.
+ */
+
+#include "cpu/trace/reader/mem_trace_reader.hh"
+#include "sim/param.hh"
+
+DEFINE_SIM_OBJECT_CLASS_NAME("MemTraceReader", MemTraceReader);
diff --git a/cpu/trace/reader/mem_trace_reader.hh b/cpu/trace/reader/mem_trace_reader.hh
new file mode 100644
index 000000000..5da99a498
--- /dev/null
+++ b/cpu/trace/reader/mem_trace_reader.hh
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2003-2004 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * Definitions for a pure virtual interface to a memory trace reader.
+ */
+
+#ifndef __MEM_TRACE_READER_HH__
+#define __MEM_TRACE_READER_HH__
+
+#include "sim/sim_object.hh"
+#include "mem/mem_req.hh" // For MemReqPtr
+
+/**
+ * Pure virtual base class for memory trace readers.
+ */
+class MemTraceReader : public SimObject
+{
+ public:
+ /** Construct this MemoryTrace reader. */
+ MemTraceReader(const std::string &name) : SimObject(name) {}
+
+ /**
+ * Read the next request from the trace. Returns the request in the
+ * provided MemReqPtr and the cycle of the request in the return value.
+ * @param req Return the next request from the trace.
+ * @return The cycle of the request, 0 if none in trace.
+ */
+ virtual Tick getNextReq(MemReqPtr &req) = 0;
+};
+
+#endif //__MEM_TRACE_READER_HH__
diff --git a/cpu/trace/trace_cpu.cc b/cpu/trace/trace_cpu.cc
new file mode 100644
index 000000000..6122fc786
--- /dev/null
+++ b/cpu/trace/trace_cpu.cc
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Declaration of a memory trace CPU object. Uses a memory trace to drive the
+ * provided memory hierarchy.
+ */
+
+#include <algorithm> // For min
+
+#include "cpu/trace/trace_cpu.hh"
+#include "cpu/trace/reader/mem_trace_reader.hh"
+#include "mem/base_mem.hh" // For PARAM constructor
+#include "mem/mem_interface.hh"
+#include "sim/builder.hh"
+#include "sim/sim_events.hh"
+
+using namespace std;
+
+TraceCPU::TraceCPU(const string &name,
+ MemInterface *icache_interface,
+ MemInterface *dcache_interface,
+ MemTraceReader *inst_trace,
+ MemTraceReader *data_trace,
+ int icache_ports,
+ int dcache_ports)
+ : BaseCPU(name, 4), icacheInterface(icache_interface),
+ dcacheInterface(dcache_interface), instTrace(inst_trace),
+ dataTrace(data_trace), icachePorts(icache_ports),
+ dcachePorts(dcache_ports), outstandingRequests(0), tickEvent(this)
+{
+ if (instTrace) {
+ assert(icacheInterface);
+ nextInstCycle = instTrace->getNextReq(nextInstReq);
+ }
+ if (dataTrace) {
+ assert(dcacheInterface);
+ nextDataCycle = dataTrace->getNextReq(nextDataReq);
+ }
+ tickEvent.schedule(0);
+}
+
+void
+TraceCPU::tick()
+{
+ assert(outstandingRequests >= 0);
+ assert(outstandingRequests < 1000);
+ int instReqs = 0;
+ int dataReqs = 0;
+
+ // Do data first to match tracing with FullCPU dumps
+
+ while (nextDataReq && (dataReqs < dcachePorts) &&
+ curTick >= nextDataCycle) {
+ assert(nextDataReq->thread_num < 4 && "Not enough threads");
+ if (dcacheInterface->isBlocked())
+ break;
+
+ ++dataReqs;
+ nextDataReq->time = curTick;
+ nextDataReq->completionEvent =
+ new TraceCompleteEvent(nextDataReq, this);
+ dcacheInterface->access(nextDataReq);
+ nextDataCycle = dataTrace->getNextReq(nextDataReq);
+ }
+
+ while (nextInstReq && (instReqs < icachePorts) &&
+ curTick >= nextInstCycle) {
+ assert(nextInstReq->thread_num < 4 && "Not enough threads");
+ if (icacheInterface->isBlocked())
+ break;
+
+ nextInstReq->time = curTick;
+ if (nextInstReq->cmd == Squash) {
+ icacheInterface->squash(nextInstReq->asid);
+ } else {
+ ++instReqs;
+ nextInstReq->completionEvent =
+ new TraceCompleteEvent(nextInstReq, this);
+ icacheInterface->access(nextInstReq);
+ }
+ nextInstCycle = instTrace->getNextReq(nextInstReq);
+ }
+
+ if (!nextInstReq && !nextDataReq) {
+ // No more requests to send. Finish trailing events and exit.
+ if (mainEventQueue.empty()) {
+ new SimExitEvent("Finshed Memory Trace");
+ } else {
+ tickEvent.schedule(mainEventQueue.nextEventTime() + 1);
+ }
+ } else {
+ tickEvent.schedule(max(curTick + 1,
+ min(nextInstCycle, nextDataCycle)));
+ }
+}
+
+void
+TraceCPU::completeRequest(MemReqPtr& req)
+{
+}
+
+void
+TraceCompleteEvent::process()
+{
+ tester->completeRequest(req);
+}
+
+const char *
+TraceCompleteEvent::description()
+{
+ return "trace access complete";
+}
+
+TraceCPU::TickEvent::TickEvent(TraceCPU *c)
+ : Event(&mainEventQueue, CPU_Tick_Pri), cpu(c)
+{
+}
+
+void
+TraceCPU::TickEvent::process()
+{
+ cpu->tick();
+}
+
+const char *
+TraceCPU::TickEvent::description()
+{
+ return "TraceCPU tick event";
+}
+
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(TraceCPU)
+
+ SimObjectParam<BaseMem *> icache;
+ SimObjectParam<BaseMem *> dcache;
+ SimObjectParam<MemTraceReader *> inst_trace;
+ SimObjectParam<MemTraceReader *> data_trace;
+ Param<int> inst_ports;
+ Param<int> data_ports;
+
+END_DECLARE_SIM_OBJECT_PARAMS(TraceCPU)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(TraceCPU)
+
+ INIT_PARAM_DFLT(icache, "instruction cache", NULL),
+ INIT_PARAM_DFLT(dcache, "data cache", NULL),
+ INIT_PARAM_DFLT(inst_trace, "instruction trace", NULL),
+ INIT_PARAM_DFLT(data_trace, "data trace", NULL),
+ INIT_PARAM_DFLT(inst_ports, "instruction cache read ports", 4),
+ INIT_PARAM_DFLT(data_ports, "data cache read/write ports", 4)
+
+END_INIT_SIM_OBJECT_PARAMS(TraceCPU)
+
+CREATE_SIM_OBJECT(TraceCPU)
+{
+ return new TraceCPU(getInstanceName(),
+ (icache) ? icache->getInterface() : NULL,
+ (dcache) ? dcache->getInterface() : NULL,
+ inst_trace, data_trace, inst_ports, data_ports);
+}
+
+REGISTER_SIM_OBJECT("TraceCPU", TraceCPU)
+
diff --git a/cpu/trace/trace_cpu.hh b/cpu/trace/trace_cpu.hh
new file mode 100644
index 000000000..13a204f4e
--- /dev/null
+++ b/cpu/trace/trace_cpu.hh
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Declaration of a memory trace CPU object. Uses a memory trace to drive the
+ * provided memory hierarchy.
+ */
+
+#ifndef __TRACE_CPU_HH__
+#define __TRACE_CPU_HH__
+
+#include <string>
+
+#include "cpu/base_cpu.hh"
+#include "mem/mem_req.hh" // for MemReqPtr
+#include "sim/eventq.hh" // for Event
+
+// Forward declaration.
+class MemInterface;
+class MemTraceReader;
+
+/**
+ * A cpu object for running memory traces through a memory hierarchy.
+ */
+class TraceCPU : public BaseCPU
+{
+ /** Interface for instruction trace requests, if any. */
+ MemInterface *icacheInterface;
+ /** Interface for data trace requests, if any. */
+ MemInterface *dcacheInterface;
+
+ /** Instruction reference trace. */
+ MemTraceReader *instTrace;
+ /** Data reference trace. */
+ MemTraceReader *dataTrace;
+
+ /** Number of Icache read ports. */
+ int icachePorts;
+ /** Number of Dcache read/write ports. */
+ int dcachePorts;
+
+ /** Number of outstanding requests. */
+ int outstandingRequests;
+
+ /** Cycle of the next instruction request, 0 if not available. */
+ Tick nextInstCycle;
+ /** Cycle of the next data request, 0 if not available. */
+ Tick nextDataCycle;
+
+ /** Next instruction request. */
+ MemReqPtr nextInstReq;
+ /** Next data request. */
+ MemReqPtr nextDataReq;
+
+ /**
+ * Event to call the TraceCPU::tick
+ */
+ class TickEvent : public Event
+ {
+ private:
+ /** The associated CPU */
+ TraceCPU *cpu;
+
+ public:
+ /**
+ * Construct this event;
+ */
+ TickEvent(TraceCPU *c);
+
+ /**
+ * Call the tick function.
+ */
+ void process();
+
+ /**
+ * Return a string description of this event.
+ */
+ const char *description();
+ };
+
+ TickEvent tickEvent;
+
+ public:
+ /**
+ * Construct a TraceCPU object.
+ */
+ TraceCPU(const std::string &name,
+ MemInterface *icache_interface,
+ MemInterface *dcache_interface,
+ MemTraceReader *inst_trace,
+ MemTraceReader *data_trace,
+ int icache_ports,
+ int dcache_ports);
+
+ /**
+ * Perform all the accesses for one cycle.
+ */
+ void tick();
+
+ /**
+ * Handle a completed memory request.
+ */
+ void completeRequest(MemReqPtr &req);
+};
+
+class TraceCompleteEvent : public Event
+{
+ MemReqPtr req;
+ TraceCPU *tester;
+
+ public:
+
+ TraceCompleteEvent(MemReqPtr &_req, TraceCPU *_tester)
+ : Event(&mainEventQueue), req(_req), tester(_tester)
+ {
+ setFlags(AutoDelete);
+ }
+
+ void process();
+
+ virtual const char *description();
+};
+
+#endif //__TRACE_CPU_HH__
+
diff --git a/kern/kernel_stats.cc b/kern/kernel_stats.cc
new file mode 100644
index 000000000..de944329a
--- /dev/null
+++ b/kern/kernel_stats.cc
@@ -0,0 +1,391 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+#include <map>
+#include <stack>
+#include <string>
+
+#include "base/statistics.hh"
+#include "base/trace.hh"
+#include "cpu/exec_context.hh"
+#include "kern/kernel_stats.hh"
+#include "sim/stats.hh"
+#include "sim/sw_context.hh"
+#include "targetarch/isa_traits.hh"
+#include "targetarch/osfpal.hh"
+#include "targetarch/syscalls.hh"
+
+using namespace std;
+using namespace Stats;
+
+class KSData
+{
+ private:
+ string _name;
+ ExecContext *xc;
+ BaseCPU *cpu;
+
+ public:
+ KSData(ExecContext *_xc, BaseCPU *_cpu)
+ : xc(_xc), cpu(_cpu), iplLast(0), iplLastTick(0), lastUser(false),
+ lastModeTick(0)
+ {}
+
+ const string &name() { return _name; }
+ void regStats(const string &name);
+
+ public:
+ Scalar<> _arm;
+ Scalar<> _quiesce;
+ Scalar<> _ivlb;
+ Scalar<> _ivle;
+ Scalar<> _hwrei;
+
+ Vector<> _iplCount;
+ Vector<> _iplGood;
+ Vector<> _iplTicks;
+ Formula _iplUsed;
+
+ Vector<> _callpal;
+ Vector<> _syscall;
+ Vector<> _faults;
+
+ Vector<> _mode;
+ Vector<> _modeGood;
+ Formula _modeFraction;
+ Vector<> _modeTicks;
+
+ Scalar<> _swap_context;
+
+ private:
+ int iplLast;
+ Tick iplLastTick;
+
+ bool lastUser;
+ Tick lastModeTick;
+
+ public:
+ void swpipl(int ipl);
+ void mode(bool user);
+ void callpal(int code);
+};
+
+KernelStats::KernelStats(ExecContext *xc, BaseCPU *cpu)
+{ data = new KSData(xc, cpu); }
+
+KernelStats::~KernelStats()
+{ delete data; }
+
+void
+KernelStats::regStats(const string &name)
+{ data->regStats(name); }
+
+void
+KSData::regStats(const string &name)
+{
+ _name = name;
+
+ _arm
+ .name(name + ".inst.arm")
+ .desc("number of arm instructions executed")
+ ;
+
+ _quiesce
+ .name(name + ".inst.quiesce")
+ .desc("number of quiesce instructions executed")
+ ;
+
+ _ivlb
+ .name(name + ".inst.ivlb")
+ .desc("number of ivlb instructions executed")
+ ;
+
+ _ivle
+ .name(name + ".inst.ivle")
+ .desc("number of ivle instructions executed")
+ ;
+
+ _hwrei
+ .name(name + ".inst.hwrei")
+ .desc("number of hwrei instructions executed")
+ ;
+
+ _iplCount
+ .init(32)
+ .name(name + ".ipl_count")
+ .desc("number of times we switched to this ipl")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ _iplGood
+ .init(32)
+ .name(name + ".ipl_good")
+ .desc("number of times we switched to this ipl from a different ipl")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ _iplTicks
+ .init(32)
+ .name(name + ".ipl_ticks")
+ .desc("number of cycles we spent at this ipl")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ _iplUsed
+ .name(name + ".ipl_used")
+ .desc("fraction of swpipl calls that actually changed the ipl")
+ .flags(total | nozero | nonan)
+ ;
+
+ _iplUsed = _iplGood / _iplCount;
+
+ _callpal
+ .init(256)
+ .name(name + ".callpal")
+ .desc("number of callpals executed")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ for (int i = 0; i < PAL::NumCodes; ++i) {
+ const char *str = PAL::name(i);
+ if (str)
+ _callpal.subname(i, str);
+ }
+
+ _syscall
+ .init(SystemCalls<Tru64>::Number)
+ .name(name + ".syscall")
+ .desc("number of syscalls executed")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) {
+ const char *str = SystemCalls<Tru64>::name(i);
+ if (str) {
+ _syscall.subname(i, str);
+ }
+ }
+
+ _faults
+ .init(Num_Faults)
+ .name(name + ".faults")
+ .desc("number of faults")
+ .flags(total | pdf | nozero | nonan)
+ ;
+
+ for (int i = 1; i < Num_Faults; ++i) {
+ const char *str = FaultName(i);
+ if (str)
+ _faults.subname(i, str);
+ }
+
+ _mode
+ .init(2)
+ .name(name + ".mode_switch")
+ .subname(0, "kernel")
+ .subname(1, "user")
+ .desc("number of protection mode switches")
+ ;
+
+ _modeGood
+ .init(2)
+ ;
+
+ _modeFraction
+ .name(name + ".mode_switch_good")
+ .subname(0, "kernel")
+ .subname(1, "user")
+ .desc("fraction of useful protection mode switches")
+ .flags(total)
+ ;
+ _modeFraction = _modeGood / _mode;
+
+ _modeTicks
+ .init(2)
+ .name(name + ".mode_ticks")
+ .subname(0, "kernel")
+ .subname(1, "user")
+ .desc("number of ticks spent at the given mode")
+ .flags(pdf)
+ ;
+
+ _swap_context
+ .name(name + ".swap_context")
+ .desc("number of times the context was actually changed")
+ ;
+}
+
+void
+KernelStats::arm()
+{ data->_arm++; }
+
+void
+KernelStats::quiesce()
+{ data->_quiesce++; }
+
+void
+KernelStats::ivlb()
+{ data->_ivlb++; }
+
+void
+KernelStats::ivle()
+{ data->_ivle++; }
+
+void
+KernelStats::hwrei()
+{ data->_hwrei++; }
+
+void
+KernelStats::fault(Fault fault)
+{ data->_faults[fault]++; }
+
+void
+KernelStats::swpipl(int ipl)
+{ data->swpipl(ipl); }
+
+void
+KernelStats::mode(bool user)
+{ data->mode(user); }
+
+void
+KernelStats::context(Addr old_pcbb, Addr new_pcbb)
+{ data->_swap_context++; }
+
+void
+KernelStats::callpal(int code)
+{ data->callpal(code); }
+
+
+void
+KSData::swpipl(int ipl)
+{
+ assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n");
+
+ _iplCount[ipl]++;
+
+ if (ipl == iplLast)
+ return;
+
+ _iplGood[ipl]++;
+ _iplTicks[iplLast] += curTick - iplLastTick;
+ iplLastTick = curTick;
+ iplLast = ipl;
+}
+
+void
+KSData::mode(bool user)
+{
+ _mode[user]++;
+ if (user == lastUser)
+ return;
+
+ _modeGood[user]++;
+ _modeTicks[lastUser] += curTick - lastModeTick;
+
+ lastModeTick = curTick;
+ lastUser = user;
+
+ if (xc->system->bin) {
+ if (!xc->swCtx || xc->swCtx->callStack.empty()) {
+ if (user)
+ xc->system->User->activate();
+ else
+ xc->system->Kernel->activate();
+ }
+ }
+}
+
+void
+KSData::callpal(int code)
+{
+ if (!PAL::name(code))
+ return;
+
+ _callpal[code]++;
+
+ switch (code) {
+ case PAL::callsys:
+ {
+ int number = xc->regs.intRegFile[0];
+ if (SystemCalls<Tru64>::validSyscallNumber(number)) {
+ int cvtnum = SystemCalls<Tru64>::convert(number);
+ _syscall[cvtnum]++;
+ }
+ }
+ break;
+ }
+
+ if (code == PAL::swpctx) {
+ SWContext *out = xc->swCtx;
+ System *sys = xc->system;
+ if (!sys->bin)
+ return;
+ DPRINTF(TCPIP, "swpctx event\n");
+ if (out) {
+ DPRINTF(TCPIP, "swapping context out with this stack!\n");
+ xc->system->dumpState(xc);
+ Addr oldPCB = xc->regs.ipr[TheISA::IPR_PALtemp23];
+
+ if (out->callStack.empty()) {
+ DPRINTF(TCPIP, "but removing it, cuz empty!\n");
+ SWContext *find = sys->findContext(oldPCB);
+ if (find) {
+ assert(sys->findContext(oldPCB) == out);
+ sys->remContext(oldPCB);
+ }
+ delete out;
+ } else {
+ DPRINTF(TCPIP, "switching out context with pcb %#x, top fn %s\n",
+ oldPCB, out->callStack.top()->name);
+ if (!sys->findContext(oldPCB)) {
+ if (!sys->addContext(oldPCB, out))
+ panic("could not add context");
+ }
+ }
+ }
+
+ Addr newPCB = xc->regs.intRegFile[16];
+ SWContext *in = sys->findContext(newPCB);
+ xc->swCtx = in;
+
+ if (in) {
+ assert(!in->callStack.empty() &&
+ "should not be switching in empty context");
+ DPRINTF(TCPIP, "swapping context in with this callstack!\n");
+ xc->system->dumpState(xc);
+ sys->remContext(newPCB);
+ fnCall *top = in->callStack.top();
+ DPRINTF(TCPIP, "switching in to pcb %#x, %s\n", newPCB, top->name);
+ assert(top->myBin && "should not switch to context with no Bin");
+ top->myBin->activate();
+ } else {
+ sys->Kernel->activate();
+ }
+ DPRINTF(TCPIP, "end swpctx\n");
+ }
+}
diff --git a/kern/kernel_stats.hh b/kern/kernel_stats.hh
new file mode 100644
index 000000000..497403762
--- /dev/null
+++ b/kern/kernel_stats.hh
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+#ifndef __KERNEL_STATS_HH__
+#define __KERNEL_STATS_HH__
+
+#include <string>
+
+class KSData;
+class ExecContext;
+class BaseCPU;
+enum Fault;
+
+class KernelStats
+{
+ private:
+ KSData *data;
+
+ public:
+ KernelStats(ExecContext *_xc, BaseCPU *_cpu);
+ ~KernelStats();
+
+ void regStats(const std::string &name);
+
+ void arm();
+ void quiesce();
+ void ivlb();
+ void ivle();
+ void hwrei();
+
+ void fault(Fault fault);
+ void swpipl(int ipl);
+ void mode(bool user);
+ void context(Addr old_pcbb, Addr new_pcbb);
+ void callpal(int code);
+};
+
+#endif // __KERNEL_STATS_HH__
diff --git a/sim/main.cc b/sim/main.cc
index f0d10a67c..54c74fd1a 100644
--- a/sim/main.cc
+++ b/sim/main.cc
@@ -90,6 +90,18 @@ exitNowHandler(int sigtype)
async_exit = true;
}
+/// Abort signal handler.
+void
+abortHandler(int sigtype)
+{
+ cerr << "Program aborted at cycle " << curTick << endl;
+
+#if TRACING_ON
+ // dump trace buffer, if there is one
+ Trace::theLog.dump(cerr);
+#endif
+}
+
/// Simulator executable name
const char *myProgName = "";
@@ -232,6 +244,7 @@ main(int argc, char **argv)
signal(SIGUSR1, dumpStatsHandler); // dump intermediate stats
signal(SIGUSR2, dumprstStatsHandler); // dump and reset stats
signal(SIGINT, exitNowHandler); // dump final stats and exit
+ signal(SIGABRT, abortHandler);
sayHello(cerr);
diff --git a/util/config/m5config.py b/util/config/m5configbase.py
index 9aa3e0387..2daf5d94d 100644
--- a/util/config/m5config.py
+++ b/util/config/m5configbase.py
@@ -157,6 +157,21 @@ class MetaConfigNode(type):
print "Error setting '%s' default on class '%s'\n" \
% (pname, cls.__name__), exc
+ # Set the class's parameter dictionary given a code string of
+ # parameter initializers (as from an object description file).
+ # Note that the caller must pass in the namespace in which to
+ # execute the code (usually the caller's globals()), since if we
+ # call globals() from inside this function all we get is this
+ # module's internal scope.
+ def init_params(cls, init_code, ctx):
+ dict = {}
+ try:
+ exec fixPythonIndentation(init_code) in ctx, dict
+ except Exception, exc:
+ print "Error in %s.init_params:" % cls.__name__, exc
+ raise
+ cls.set_param_dict(dict)
+
# Lookup a parameter description by name in the given class. Use
# the _param_bases list defined in __init__ to go up the
# inheritance hierarchy if necessary.
@@ -220,14 +235,13 @@ class ConfigNode(object):
% (self.__class__.__name__, _name, type(_name))
self._name = _name
self._parent = _parent
- self._children = {}
if (_parent):
- _parent.__addChild(self)
- # Set up absolute path from root.
- if (_parent and _parent._path != 'Universe'):
- self._path = _parent._path + '.' + self._name
- else:
- self._path = self._name
+ _parent._add_child(self)
+ self._children = {}
+ # keep a list of children in addition to the dictionary keys
+ # so we can remember the order they were added and print them
+ # out in that order.
+ self._child_list = []
# When printing (e.g. to .ini file), just give the name.
def __str__(self):
@@ -248,7 +262,7 @@ class ConfigNode(object):
# Set attribute. All attribute assignments go through here. Must
# be private attribute (starts with '_') or valid parameter entry.
# Basically identical to MetaConfigClass.__setattr__(), except
- # this handles instances rather than class attributes.
+ # this sets attributes on specific instances rather than on classes.
def __setattr__(self, attr_name, value):
if attr_name.startswith('_'):
object.__setattr__(self, attr_name, value)
@@ -261,11 +275,30 @@ class ConfigNode(object):
% (self.__class__.__name__, attr_name)
# It's ok: set attribute by delegating to 'object' class.
# Note the use of param.make_value() to verify/canonicalize
- # the assigned value
- object.__setattr__(self, attr_name, param.make_value(value))
+ # the assigned value.
+ v = param.make_value(value)
+ object.__setattr__(self, attr_name, v)
+
+ # A little convenient magic: if the parameter is a ConfigNode
+ # (or vector of ConfigNodes, or anything else with a
+ # '_set_parent_if_none' function attribute) that does not have
+ # a parent (and so is not part of the configuration
+ # hierarchy), then make this node its parent.
+ if hasattr(v, '_set_parent_if_none'):
+ v._set_parent_if_none(self)
+
+ def _path(self):
+ # Return absolute path from root.
+ if not self._parent and self._name != 'Universe':
+ print >> sys.stderr, "Warning:", self._name, "has no parent"
+ parent_path = self._parent and self._parent._path()
+ if parent_path and parent_path != 'Universe':
+ return parent_path + '.' + self._name
+ else:
+ return self._name
# Add a child to this node.
- def __addChild(self, new_child):
+ def _add_child(self, new_child):
# set child's parent before calling this function
assert new_child._parent == self
if not isinstance(new_child, ConfigNode):
@@ -276,6 +309,7 @@ class ConfigNode(object):
"Node '%s' already has a child '%s'" \
% (self._name, new_child._name)
self._children[new_child._name] = new_child
+ self._child_list += [new_child]
# operator overload for '+='. You can say "node += child" to add
# a child that was created with parent=None. An early attempt
@@ -285,27 +319,28 @@ class ConfigNode(object):
raise AttributeError, \
"Node '%s' already has a parent" % new_child._name
new_child._parent = self
- self.__addChild(new_child)
+ self._add_child(new_child)
return self
+ # Set this instance's parent to 'parent' if it doesn't already
+ # have one. See ConfigNode.__setattr__().
+ def _set_parent_if_none(self, parent):
+ if self._parent == None:
+ parent += self
+
# Print instance info to .ini file.
def _instantiate(self):
- print '[' + self._path + ']' # .ini section header
- if self._children:
- # instantiate children in sorted order for backward
- # compatibility (else we can end up with cpu1 before cpu0).
- child_names = self._children.keys()
- child_names.sort()
- print 'children =',
- for child_name in child_names:
- print child_name,
- print
+ print '[' + self._path() + ']' # .ini section header
+ if self._child_list:
+ # instantiate children in same order they were added for
+ # backward compatibility (else we can end up with cpu1
+ # before cpu0).
+ print 'children =', ' '.join([c._name for c in self._child_list])
self._instantiateParams()
print
# recursively dump out children
- if self._children:
- for child_name in child_names:
- self._children[child_name]._instantiate()
+ for c in self._child_list:
+ c._instantiate()
# ConfigNodes have no parameters. Overridden by SimObject.
def _instantiateParams(self):
@@ -373,9 +408,6 @@ class SimObject(ConfigNode):
def isNullPointer(value):
return isinstance(value, NullSimObject)
-def isSimObjectType(ptype):
- return issubclass(ptype, SimObject)
-
# Regular parameter.
class Param(object):
# Constructor. E.g., Param(Int, "number of widgets", 5)
@@ -391,7 +423,7 @@ class Param(object):
# nothing to do if None or already correct type. Also allow NULL
# pointer to be assigned where a SimObject is expected.
if value == None or isinstance(value, self.ptype) or \
- isNullPointer(value) and isSimObjectType(self.ptype):
+ isNullPointer(value) and issubclass(self.ptype, ConfigNode):
return value
# this type conversion will raise an exception if it's illegal
return self.ptype(value)
@@ -414,12 +446,21 @@ class Param(object):
# storing these instead of a raw Python list is that we can override
# the __str__() method to not print out '[' and ']' in the .ini file.
class _VectorParamValue(object):
- def __init__(self, list):
- self.value = list
+ def __init__(self, value):
+ assert isinstance(value, list) or value == None
+ self.value = value
def __str__(self):
return ' '.join(map(str, self.value))
+ # Set member instance's parents to 'parent' if they don't already
+ # have one. Extends "magic" parenting of ConfigNodes to vectors
+ # of ConfigNodes as well. See ConfigNode.__setattr__().
+ def _set_parent_if_none(self, parent):
+ if self.value and hasattr(self.value[0], '_set_parent_if_none'):
+ for v in self.value:
+ v._set_parent_if_none(parent)
+
# Vector-valued parameter description. Just like Param, except that
# the value is a vector (list) of the specified type instead of a
# single value.
@@ -623,7 +664,7 @@ false = False
true = True
# Some memory range specifications use this as a default upper bound.
-MAX_ADDR = 2 ** 63
+MAX_ADDR = 2**64 - 1
# For power-of-two sizing, e.g. 64*K gives an integer value 65536.
K = 1024
@@ -631,109 +672,6 @@ M = K*K
G = K*M
#####################################################################
-#
-# Object description loading.
-#
-# The final step is to define the classes corresponding to M5 objects
-# and their parameters. These classes are described in .odesc files
-# in the source tree. This code walks the tree to find those files
-# and loads up the descriptions (by evaluating them in pieces as
-# Python code).
-#
-#
-# Because SimObject classes inherit from other SimObject classes, and
-# can use arbitrary other SimObject classes as parameter types, we
-# have to do this in three steps:
-#
-# 1. Walk the tree to find all the .odesc files. Note that the base
-# of the filename *must* match the class name. This step builds a
-# mapping from class names to file paths.
-#
-# 2. Start generating empty class definitions (via def_class()) using
-# the OBJECT field of the .odesc files to determine inheritance.
-# def_class() recurses on demand to define needed base classes before
-# derived classes.
-#
-# 3. Now that all of the classes are defined, go through the .odesc
-# files one more time loading the parameter descriptions.
-#
-#####################################################################
-
-# dictionary: maps object names to file paths
-odesc_file = {}
-
-# dictionary: maps object names to boolean flag indicating whether
-# class definition was loaded yet. Since SimObject is defined in
-# m5.config.py, count it as loaded.
-odesc_loaded = { 'SimObject': True }
-
-# Find odesc files in namelist and initialize odesc_file and
-# odesc_loaded dictionaries. Called via os.path.walk() (see below).
-def find_odescs(process, dirpath, namelist):
- # Prune out SCCS directories so we don't process s.*.odesc files.
- i = 0
- while i < len(namelist):
- if namelist[i] == "SCCS":
- del namelist[i]
- else:
- i = i + 1
- # Find .odesc files and record them.
- for name in namelist:
- if name.endswith('.odesc'):
- objname = name[:name.rindex('.odesc')]
- path = os.path.join(dirpath, name)
- if odesc_file.has_key(objname):
- print "Warning: duplicate object names:", \
- odesc_file[objname], path
- odesc_file[objname] = path
- odesc_loaded[objname] = False
-
-
-# Regular expression string for parsing .odesc files.
-file_re_string = r'''
-^OBJECT: \s* (\w+) \s* \( \s* (\w+) \s* \)
-\s*
-^PARAMS: \s*\n ( (\s+.*\n)* )
-'''
-
-# Compiled regular expression object.
-file_re = re.compile(file_re_string, re.MULTILINE | re.VERBOSE)
-
-# .odesc file parsing function. Takes a filename and returns tuple of
-# object name, object base, and parameter description section.
-def parse_file(path):
- f = open(path, 'r').read()
- m = file_re.search(f)
- if not m:
- print "Can't parse", path
- sys.exit(1)
- return (m.group(1), m.group(2), m.group(3))
-
-# Define SimObject class based on description in specified filename.
-# Class itself is empty except for _name attribute; parameter
-# descriptions will be loaded later. Will recurse to define base
-# classes as needed before defining specified class.
-def def_class(path):
- # load & parse file
- (obj, parent, params) = parse_file(path)
- # check to see if base class is defined yet; define it if not
- if not odesc_loaded.has_key(parent):
- print "No .odesc file found for", parent
- sys.exit(1)
- if not odesc_loaded[parent]:
- def_class(odesc_file[parent])
- # define the class. The _name attribute of the class lets us
- # track the actual SimObject class name even when we derive new
- # subclasses in scripts (to provide new parameter value settings).
- s = "class %s(%s): _name = '%s'" % (obj, parent, obj)
- try:
- # execute in global namespace, so new class will be globally
- # visible
- exec s in globals()
- except Exception, exc:
- print "Object error in %s:" % path, exc
- # mark this file as loaded
- odesc_loaded[obj] = True
# Munge an arbitrary Python code string to get it to execute (mostly
# dealing with indentation). Stolen from isa_parser.py... see
@@ -745,51 +683,6 @@ def fixPythonIndentation(s):
s = 'if 1:\n' + s
return s
-# Load parameter descriptions from .odesc file. Object class must
-# already be defined.
-def def_params(path):
- # load & parse file
- (obj_name, parent_name, param_code) = parse_file(path)
- # initialize param dict
- param_dict = {}
- # execute parameter descriptions.
- try:
- # "in globals(), param_dict" makes exec use the current
- # globals as the global namespace (so all of the Param
- # etc. objects are visible) and param_dict as the local
- # namespace (so the newly defined parameter variables will be
- # entered into param_dict).
- exec fixPythonIndentation(param_code) in globals(), param_dict
- except Exception, exc:
- print "Param error in %s:" % path, exc
- return
- # Convert object name string to Python class object
- obj = eval(obj_name)
- # Set the object's parameter description dictionary (see MetaConfigNode).
- obj.set_param_dict(param_dict)
-
-
-# Walk directory tree to find .odesc files.
-# Someday we'll have to make the root path an argument instead of
-# hard-coding it. For now the assumption is you're running this in
-# util/config.
-root = '../..'
-os.path.walk(root, find_odescs, None)
-
-# Iterate through file dictionary and define classes.
-for objname, path in odesc_file.iteritems():
- if not odesc_loaded[objname]:
- def_class(path)
-
-sim_object_list = odesc_loaded.keys()
-sim_object_list.sort()
-
-# Iterate through files again and load parameters.
-for path in odesc_file.itervalues():
- def_params(path)
-
-#####################################################################
-
# Hook to generate C++ parameter code.
def gen_sim_code(file):
for objname in sim_object_list: