From d53c6c168afa7eafdf8c4fa10a10f835db25e3da Mon Sep 17 00:00:00 2001 From: Steve Reinhardt Date: Tue, 15 Jun 2004 10:48:08 -0700 Subject: Get software prefetching to work in full-system mode. Mostly a matter of keeping prefetches to invalid addrs from messing up VM IPRs. Also discovered that wh64s were not being treated as prefetches, when they really should be (for the most part, anyway). arch/alpha/alpha_memory.cc: arch/alpha/alpha_memory.hh: - Get rid of intrlock flag for locking VM fault regs (a la EV5); instead, just don't update regs on VPTE loads (a la EV6). - Add NO_FAULT MemReq flag to indicate references that should not cause page faults (i.e., prefetches). arch/alpha/ev5.cc: - Get rid of intrlock flag for locking VM fault regs (a la EV5); instead, just don't update regs on VPTE loads (a la EV6). - Add Fault trace flag. arch/alpha/isa_desc: - Add NO_FAULT MemReq flag to indicate references that should not cause page faults (i.e., prefetches). - Mark wh64 as a "data prefetch" instruction so it gets controlled properly by the FullCPU data prefetch control switch. - Align wh64 EA in decoder so issue stage doesn't need to worry about it. arch/alpha/isa_traits.hh: - Get rid of intrlock flag for locking VM fault regs (a la EV5); instead, just don't update regs on VPTE loads (a la EV6). base/traceflags.py: - Add Fault trace flag. cpu/simple_cpu/simple_cpu.hh: - Pass MemReq flags to writeHint() operation. cpu/static_inst.hh: Update comment re: prefetches. --HG-- extra : convert_revision : 62e466b0f4c0ff9961796270fa2e371ec24bcbb6 --- base/traceflags.py | 1 + 1 file changed, 1 insertion(+) (limited to 'base') diff --git a/base/traceflags.py b/base/traceflags.py index 69f4e7ab8..a01eae3eb 100644 --- a/base/traceflags.py +++ b/base/traceflags.py @@ -66,6 +66,7 @@ baseFlags = [ 'AlphaConsole', 'Flow', 'Interrupt', + 'Fault', 'Cycle', 'Loader', 'MMU', -- cgit v1.2.3 From c1e58b6bf6b353f9355aafd8ed2cb86e6d00e32a Mon Sep 17 00:00:00 2001 From: Steve Reinhardt Date: Mon, 21 Jun 2004 22:42:16 -0700 Subject: Handle SIGABRT a little more nicely. base/misc.cc: Don't dump trace in panic(), SIGABRT handler will do it now. sim/main.cc: Add SIGABRT handler that prints curTick and dumps buffered trace (if any). This doesn't work as well as I would like since the buffered trace records often contain stale references to stack-resident temporary std::string objects. Someday we'll have to put in a fix for that. --HG-- extra : convert_revision : 67576efbf5c10e63e255fc9a9ec520326fd3567b --- base/misc.cc | 5 ----- 1 file changed, 5 deletions(-) (limited to 'base') diff --git a/base/misc.cc b/base/misc.cc index 5caf96d40..1304fb128 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(); } -- cgit v1.2.3