gem5.git
14 years agoARM: Support unaligned memory access.
Min Kyu Jeong [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Support unaligned memory access.

Without this flag set, page-crossing requests were not split into two mem
request.

Depending on the alignment bit in the SCTLR, misaligned access could
raise a fault. However it seems unnecessary to implement that.

14 years agoARM: Seperate the queues of L1 and L2 walker states.
Gene WU [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Seperate the queues of L1 and L2 walker states.

14 years agoARM: Adding a bogus fault that does nothing.
Min Kyu Jeong [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Adding a bogus fault that does nothing.
This fault can used to flush the pipe, not including the faulting instruction.

The particular case I needed this was for a self-modifying code. It needed to
drain the store queue and force the following instruction to refetch from
icache. DCCMVAC cp15 mcr instruction is modified to raise this fault.

14 years agoARM: Remove ALPHA KSeg functions.
William Wang [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Remove ALPHA KSeg functions.

These were erronously copied years ago into the ARM directory.

14 years agoARM: Limited implementation of dprintk.
Ali Saidi [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Limited implementation of dprintk.

Does not work with vfp arguments or arguments passed on the stack.

14 years agoARM: Fixed register flattening logic (FP_Base_DepTag was set too low)
Min Kyu Jeong [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Fixed register flattening logic (FP_Base_DepTag was set too low)

When decoding a srs instruction, invalid mode encoding returns invalid instruction.
This can happen when garbage instructions are fetched from mispredicted path

14 years agoARM: Make VMSR, RFE PC/LR etc non speculative, and serializing
Ali Saidi [Thu, 26 Aug 2010 00:10:43 +0000 (19:10 -0500)]
ARM: Make VMSR, RFE PC/LR etc non speculative, and serializing

14 years agoARM: Update regression tests for ldr/str microcode changes.
Ali Saidi [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Update regression tests for ldr/str microcode changes.

14 years agoARM: Use fewer micro-ops for register update loads if possible.
Gene WU [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Use fewer micro-ops for register update loads if possible.

Allow some loads that update the base register to use just two micro-ops. three
micro-ops are only used if the destination register matches the offset register
or the PC is the destination regsiter. If the PC is updated it needs to be
the last micro-op otherwise O3 will mispredict.

14 years agoARM: Set the high bits in the part number so it's considered new by some code.
Ali Saidi [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Set the high bits in the part number so it's considered new by some code.

14 years agoARM: Fix VFP enabled checks for mem instructions
Ali Saidi [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Fix VFP enabled checks for mem instructions

14 years agoARM: Seperate out the renamable bits in the FPSCR.
Gabe Black [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Seperate out the renamable bits in the FPSCR.

14 years agoARM: Eliminate some unused enums.
Gabe Black [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Eliminate some unused enums.

14 years agoARM: Fix type comparison warnings in Neon.
Gabe Black [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Fix type comparison warnings in Neon.

14 years agoARM: Implement CPACR register and return Undefined Instruction when FP access is...
Gabe Black [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Implement CPACR register and return Undefined Instruction when FP access is disabled.

14 years agoARM: Implement all ARM SIMD instructions.
Gabe Black [Thu, 26 Aug 2010 00:10:42 +0000 (19:10 -0500)]
ARM: Implement all ARM SIMD instructions.

14 years agoARM: Expand the mode checking utility functions.
Gabe Black [Thu, 26 Aug 2010 00:10:41 +0000 (19:10 -0500)]
ARM: Expand the mode checking utility functions.

inUserMode now can take either a threadcontext or a CPSR value directly. If
given a thread context it just extracts the CPSR and calls the other version.
An inPrivelegedMode function was also implemented which just returns the
opposite of inUserMode.

14 years agoTracing: Fix trace so 'Predicated False' doesn't show up
Ali Saidi [Thu, 26 Aug 2010 00:10:41 +0000 (19:10 -0500)]
Tracing: Fix trace so 'Predicated False' doesn't show up

14 years agomem: fix dumb typo in copyrights
Steve Reinhardt [Wed, 25 Aug 2010 21:08:27 +0000 (14:08 -0700)]
mem: fix dumb typo in copyrights

14 years agoconfig: changed ruby config file names to be consistent
Brad Beckmann [Tue, 24 Aug 2010 21:08:23 +0000 (14:08 -0700)]
config: changed ruby config file names to be consistent

14 years agoconfig: remove ruby's requirement on the timing cmd line param
Brad Beckmann [Tue, 24 Aug 2010 20:20:32 +0000 (13:20 -0700)]
config: remove ruby's requirement on the timing cmd line param

Since ruby only works in timing mode, explicitly requiring the timing cmd line
param to be specified is not necessary.

14 years agoconfig: fixed ruby dma device connections
Brad Beckmann [Tue, 24 Aug 2010 20:20:31 +0000 (13:20 -0700)]
config: fixed ruby dma device connections

14 years agotesters: move testers to a new directory
Brad Beckmann [Tue, 24 Aug 2010 19:07:22 +0000 (12:07 -0700)]
testers: move testers to a new directory

This patch moves the testers to a new subdirectory under src/cpu and includes
the necessary fixes to work with latest m5 initialization patches.

--HG--
rename : configs/example/determ_test.py => configs/example/ruby_direct_test.py
rename : src/cpu/directedtest/DirectedGenerator.cc => src/cpu/testers/directedtest/DirectedGenerator.cc
rename : src/cpu/directedtest/DirectedGenerator.hh => src/cpu/testers/directedtest/DirectedGenerator.hh
rename : src/cpu/directedtest/InvalidateGenerator.cc => src/cpu/testers/directedtest/InvalidateGenerator.cc
rename : src/cpu/directedtest/InvalidateGenerator.hh => src/cpu/testers/directedtest/InvalidateGenerator.hh
rename : src/cpu/directedtest/RubyDirectedTester.cc => src/cpu/testers/directedtest/RubyDirectedTester.cc
rename : src/cpu/directedtest/RubyDirectedTester.hh => src/cpu/testers/directedtest/RubyDirectedTester.hh
rename : src/cpu/directedtest/RubyDirectedTester.py => src/cpu/testers/directedtest/RubyDirectedTester.py
rename : src/cpu/directedtest/SConscript => src/cpu/testers/directedtest/SConscript
rename : src/cpu/directedtest/SeriesRequestGenerator.cc => src/cpu/testers/directedtest/SeriesRequestGenerator.cc
rename : src/cpu/directedtest/SeriesRequestGenerator.hh => src/cpu/testers/directedtest/SeriesRequestGenerator.hh
rename : src/cpu/memtest/MemTest.py => src/cpu/testers/memtest/MemTest.py
rename : src/cpu/memtest/SConscript => src/cpu/testers/memtest/SConscript
rename : src/cpu/memtest/memtest.cc => src/cpu/testers/memtest/memtest.cc
rename : src/cpu/memtest/memtest.hh => src/cpu/testers/memtest/memtest.hh
rename : src/cpu/rubytest/Check.cc => src/cpu/testers/rubytest/Check.cc
rename : src/cpu/rubytest/Check.hh => src/cpu/testers/rubytest/Check.hh
rename : src/cpu/rubytest/CheckTable.cc => src/cpu/testers/rubytest/CheckTable.cc
rename : src/cpu/rubytest/CheckTable.hh => src/cpu/testers/rubytest/CheckTable.hh
rename : src/cpu/rubytest/RubyTester.cc => src/cpu/testers/rubytest/RubyTester.cc
rename : src/cpu/rubytest/RubyTester.hh => src/cpu/testers/rubytest/RubyTester.hh
rename : src/cpu/rubytest/RubyTester.py => src/cpu/testers/rubytest/RubyTester.py
rename : src/cpu/rubytest/SConscript => src/cpu/testers/rubytest/SConscript

14 years agoMOESI_hammer: fixed bug for dma reads in single cpu systems
Brad Beckmann [Tue, 24 Aug 2010 19:06:53 +0000 (12:06 -0700)]
MOESI_hammer: fixed bug for dma reads in single cpu systems

14 years agoFaults: Get rid of some commented out code in sim/faults.hh.
Gabe Black [Mon, 23 Aug 2010 23:23:47 +0000 (16:23 -0700)]
Faults: Get rid of some commented out code in sim/faults.hh.

14 years agoX86: Create a directory for files that define register indexes.
Gabe Black [Mon, 23 Aug 2010 23:14:24 +0000 (16:14 -0700)]
X86: Create a directory for files that define register indexes.

This is to help tidy up arch/x86. These files should not be used external to
the ISA.

--HG--
rename : src/arch/x86/apicregs.hh => src/arch/x86/regs/apic.hh
rename : src/arch/x86/floatregs.hh => src/arch/x86/regs/float.hh
rename : src/arch/x86/intregs.hh => src/arch/x86/regs/int.hh
rename : src/arch/x86/miscregs.hh => src/arch/x86/regs/misc.hh
rename : src/arch/x86/segmentregs.hh => src/arch/x86/regs/segment.hh

14 years agoPower: Get rid of unused checkFpEnableFault.
Gabe Black [Mon, 23 Aug 2010 23:14:23 +0000 (16:14 -0700)]
Power: Get rid of unused checkFpEnableFault.

This function was brought in from another ISA and doesn't actually do anything
or get used.

14 years agoISA: Get rid of old, unused utility functions cluttering up the ISAs.
Gabe Black [Mon, 23 Aug 2010 23:14:20 +0000 (16:14 -0700)]
ISA: Get rid of old, unused utility functions cluttering up the ISAs.

14 years agoX86: Get rid of the flagless microop constructor.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Get rid of the flagless microop constructor.

This will reduce clutter in the source and hopefully speed up compilation.

14 years agoX86: Make the TLB fault instead of panic when something is unmapped in SE mode.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Make the TLB fault instead of panic when something is unmapped in SE mode.

The fault object, if invoked, would then panic. This is a bit less direct, but
it means speculative execution won't panic the simulator.

14 years agoX86: Make the x86 ExtMachInst serializable with (UN)SERIALIZE_SCALAR.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Make the x86 ExtMachInst serializable with (UN)SERIALIZE_SCALAR.

--HG--
rename : src/arch/x86/types.hh => src/arch/x86/types.cc

14 years agoX86: Define a noop ExtMachInst.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Define a noop ExtMachInst.

14 years agoX86: Mark serializing macroops and regular instructions as such.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Mark serializing macroops and regular instructions as such.

14 years agoX86: Add a .serializing directive that makes a macroop serializing.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Add a .serializing directive that makes a macroop serializing.

This directive really just tells the macroop to set IsSerializing and
IsSerializeAfter on its final microop.

14 years agoX86: Consolidate extra microop flags into one parameter.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
X86: Consolidate extra microop flags into one parameter.

This single parameter replaces the collection of bools that set up various
flavors of microops. A flag parameter also allows other flags to be set like
the serialize before/after flags, etc., without having to change the
constructor.

14 years agoCPU: Make the constants for StaticInst flags visible outside the class.
Gabe Black [Mon, 23 Aug 2010 16:44:19 +0000 (09:44 -0700)]
CPU: Make the constants for StaticInst flags visible outside the class.

14 years agoBUILD: GCC 4.4.1/2 have a bug in their auto-vectorizer that we trip on
Ali Saidi [Mon, 23 Aug 2010 16:18:42 +0000 (11:18 -0500)]
BUILD: GCC 4.4.1/2 have a bug in their auto-vectorizer that we trip on

14 years agoALPHA: The previous O3 patch causes a slight stats change with fullsys.
Ali Saidi [Mon, 23 Aug 2010 16:18:42 +0000 (11:18 -0500)]
ALPHA: The previous O3 patch causes a slight stats change with fullsys.

14 years agoO3: Skipping mem-order violation check for uncachable loads.
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:42 +0000 (11:18 -0500)]
O3: Skipping mem-order violation check for uncachable loads.
Uncachable load is not executed until it reaches the head of the ROB,
hence cannot cause one.

14 years agoARM: Improve printing of uop disassembly.
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:42 +0000 (11:18 -0500)]
ARM: Improve printing of uop disassembly.

14 years agoARM: Clean up flattening for SPSR adding
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Clean up flattening for SPSR adding

14 years agoARM: Implement DBG instruction that doesn't do much for now.
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Implement DBG instruction that doesn't do much for now.

14 years agoMEM: Make CLREX a first class request operation and clear locks in caches when it...
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
MEM: Make CLREX a first class request operation and clear locks in caches when it in received

14 years agoARM: Make sure that software prefetch instructions can't change the state of the TLB
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Make sure that software prefetch instructions can't change the state of the TLB

14 years agoARM: Don't write tracedata on writes, it might have been freed already.
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Don't write tracedata on writes, it might have been freed already.

14 years agoARM: Implement CLREX init/complete acc methods
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Implement CLREX init/complete acc methods

14 years agoARM: Fix Uncachable TLB requests and decoding of xn bit
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Fix Uncachable TLB requests and decoding of xn bit

14 years agoDevices: Allow a device to specify that a request is uncachable.
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
Devices: Allow a device to specify that a request is uncachable.

14 years agoARM: For non-cachable accesses set the UNCACHABLE flag
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: For non-cachable accesses set the UNCACHABLE flag

14 years agoARM: Implement DSB, DMB, ISB
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Implement DSB, DMB, ISB

14 years agoARM: Get SCTLR TE bit from reset SCTLR
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Get SCTLR TE bit from reset SCTLR

14 years agoARM: Implement CLREX
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: Implement CLREX

14 years agoARM: BX instruction can be contitional if last instruction in a IT block
Gene Wu [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: BX instruction can be contitional if last instruction in a IT block

Branches are allowed to be the last instuction in an IT block. Before it was
assumed that they could not. So Branches in thumb2 were Uncond.

14 years agoCPU: Print out flatten-out register index as with IntRegs/FloatRegs traceflag
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
CPU: Print out flatten-out register index as with IntRegs/FloatRegs traceflag

14 years agoCPU: Make Exec trace to print predication result (if false) for memory instructions
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
CPU: Make Exec trace to print predication result (if false) for memory instructions

14 years agoARM: mark msr/mrs instructions as SerializeBefore/After
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:41 +0000 (11:18 -0500)]
ARM: mark msr/mrs instructions as SerializeBefore/After
Since miscellaneous registers bypass wakeup logic, force serialization
to resolve data dependencies through them
* * *
ARM: adding non-speculative/serialize flags for instructions change CPSR

14 years agoO3: Handle loads when the destination is the PC.
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
O3: Handle loads when the destination is the PC.
For loads that PC is the destination, check if the load
was mispredicted again when the value being loaded returns from memory

14 years agoARM/O3: store the result of the predicate evaluation in DynInst or Threadstate.
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM/O3: store the result of the predicate evaluation in DynInst or Threadstate.
THis allows the CPU to handle predicated-false instructions accordingly.
This particular patch makes loads that are predicated-false to be sent
straight to the commit stage directly, not waiting for return of the data
that was never requested since it was predicated-false.

14 years agoARM: adding genMachineCheckFault() stub for ARM that doesn't panic
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: adding genMachineCheckFault() stub for ARM that doesn't panic

14 years agoARM: DFSR status value for sync external data abort is expected to be 0x8 in ARMv7
Gene Wu [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: DFSR status value for sync external data abort is expected to be 0x8 in ARMv7

14 years agoARM: Temporary local variables can't conflict with isa parser operands.
Gene Wu [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Temporary local variables can't conflict with isa parser operands.
PC is an operand, so we can't have a temp called PC

14 years agoARM: Exclusive accesses must be double word aligned
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Exclusive accesses must be double word aligned

14 years agoARM: Add some registers for big loads/stores to support neon.
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Add some registers for big loads/stores to support neon.

14 years agoARM: Decode neon memory instructions.
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Decode neon memory instructions.

14 years agoARM: Clean up the ISA desc portion of the ARM memory instructions.
Gabe Black [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Clean up the ISA desc portion of the ARM memory instructions.

14 years agoLoader: Don't insert symbols into the symbol table that begin wiht '$'.
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
Loader: Don't insert symbols into the symbol table that begin wiht '$'.

14 years agoARM: We don't currently support ThumbEE exceptions, so don't report that we do
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: We don't currently support ThumbEE exceptions, so don't report that we do

14 years agoARM: Change how the AMBA device ID checking is done to make it more generic
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Change how the AMBA device ID checking is done to make it more generic

14 years agoARM: Add configuration for Linux/Full System
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Add configuration for Linux/Full System

14 years agoARM: Add system for ARM/Linux and bootstrapping
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Add system for ARM/Linux and bootstrapping

14 years agoARM: Add I/O devices for booting linux
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Add I/O devices for booting linux

--HG--
rename : src/dev/arm/Versatile.py => src/dev/arm/RealView.py
rename : src/dev/arm/versatile.cc => src/dev/arm/realview.cc
rename : src/dev/arm/versatile.hh => src/dev/arm/realview.hh

14 years agoARM: Implement some more misc registers
Ali Saidi [Mon, 23 Aug 2010 16:18:40 +0000 (11:18 -0500)]
ARM: Implement some more misc registers

14 years agoARM: Fix an un-initialized variable bug
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
ARM: Fix an un-initialized variable bug

14 years agoLoader: Use address mask provided to load*Symbols when loading the symbols from the...
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
Loader: Use address mask provided to load*Symbols when loading the symbols from the symbol table.

14 years agoLoader: Make the load address mask be a parameter of the system rather than a constant.
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
Loader: Make the load address mask be a parameter of the system rather than a constant.

This allows one two different OS requirements for the same ISA to be handled.
Some OSes are compiled for a virtual address and need to be loaded into physical
memory that starts at address 0, while other bare metal tools generate
images that start at address 0.

14 years agoARM: Finish the timing translation when taking a fault.
Min Kyu Jeong [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
ARM: Finish the timing translation when taking a fault.

14 years agoARM: Use a stl queue for the table walker state
Dam Sunwoo [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
ARM: Use a stl queue for the table walker state

14 years agoCPU: Set a default value when readBytes faults.
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
CPU: Set a default value when readBytes faults.

This was being done in read(), but if readBytes was called directly it
wouldn't happen. Also, instead of setting the memory blob being read to -1
which would (I believe) require using memset with -1 as a parameter, this now
uses bzero. It's hoped that it's more specialized behavior will make it
slightly faster.

14 years agoCompiler: Fixes for GCC 4.5.
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
Compiler: Fixes for GCC 4.5.

14 years agoBASE: Fix genrand to generate both 0s and 1s when max equals one.
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
BASE: Fix genrand to generate both 0s and 1s when max equals one.
previously was only generating 0s.

14 years agostats: Fix off-by-one error in distributions.
Ali Saidi [Mon, 23 Aug 2010 16:18:39 +0000 (11:18 -0500)]
stats: Fix off-by-one error in distributions.

bkt size isn't evenly divisible by max-min and it would round down,
it's possible to sample a distribution and have no place to put the sample.
When this case occured the simulator would assert.

14 years agoX86: Get rid of unused file arguments.hh.
Gabe Black [Mon, 23 Aug 2010 01:42:23 +0000 (18:42 -0700)]
X86: Get rid of unused file arguments.hh.

14 years agoSPARC: Fix some style issues in utility.hh.
Gabe Black [Mon, 23 Aug 2010 01:39:39 +0000 (18:39 -0700)]
SPARC: Fix some style issues in utility.hh.

14 years agoX86: Get rid of the unused getAllocator on the python base microop class.
Gabe Black [Mon, 23 Aug 2010 01:24:09 +0000 (18:24 -0700)]
X86: Get rid of the unused getAllocator on the python base microop class.

This function is always overridden, and doesn't actually have the right
signature.

14 years agoregress: Regression tester updates
Brad Beckmann [Sat, 21 Aug 2010 00:44:26 +0000 (17:44 -0700)]
regress: Regression tester updates

Regression tester updates required by the following patches:

brad/moved_python_protocol_files: config: moved python protocol config files
brad/ruby_options_movement: config: reorganized how ruby specifies command-line options
brad/config_token_bcast: ruby: added token broadcast config params to cmd options
brad/topology_name: config: Added the topology description to m5 config.ini
brad/ruby_system_names: config: Improve ruby simobject names
brad/consolidated_protocol_stats: slicc: Consolidated the protocol stats printing
brad/ruby_request_type_ostream_fix: ruby: Added ruby_request_type ostream def to libruby.hh
brad/memtest_dma_extension: memtest: Memtester support for DMA
brad/token_dma_lockdown_fix: MOESI_CMP_token: Fixed dma persistent lockdown bugs
brad/profile_generic_mach_type: ruby: Reincarnated the responding machine profiling
brad/network_msg_consolidated_stats: ruby: Added consolidated network msg stats
brad/bcast_msg_profiling: ruby: Added bcast msg profiling to hammer and token
brad/l2cache_profiling_fix: ruby: Fixed L2 cache miss profiling
brad/llsc_ruby_m5_fix: ruby: fix ruby llsc support to sync sc outcomes
brad/ruby_latency_fixes: ruby: Reduced ruby latencies
brad/hammer_l2_cache_latency: ruby: Updated MOESI_hammer L2 latency behavior
brad/deterministic_resurrection: ruby: Resurrected Ruby's deterministic tests
brad/token_dma_fixes: ruby: MOESI_CMP_token dma fixes
brad/ruby_cmd_options: config: added cmd options to control ruby debug
brad/token_owner_fixes: ruby: fixed token bugs associated with owner token counts
brad/ruby_remove_try_except: ruby: Improved try except blocks in ruby creation
brad/ruby_port_callback_fix: ruby: Fixed RubyPort sendTiming callbacks
brad/interrupt_drain_fix: devices: Fixed periodic interrupts to work with draining
brad/llsc_trace_profile: ruby: Added SC fail indication to trace profiling
brad/no_migrate_atomic: ruby: Disable migratory sharing for token and hammer
brad/ruby_start_time_fix: ruby: Reset ruby stats in RubySystem unserialize
brad/numa_bit_select_fix: ruby: fixed DirectoryMemory's numa_high_bit configuration
brad/hammer_probe_filter: ruby: added probe filter support to hammer
brad/miss_latency_detail_profile: MOESI_hammer: break down miss latency stalled cycles
brad/recycle_latency_fix: ruby: Recycle latency fix for hammer
brad/stall_and_wait: ruby: Stall and wait input messages instead of recycling
brad/rubytest_request_flag_fix: ruby: Fixed minor bug in ruby test for setting the request type
brad/hammer_merge_gets: ruby: Added merge GETS optimization to hammer
brad/regress_updates: regress: Regression tester updates

14 years agoruby: Added merge GETS optimization to hammer
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
ruby: Added merge GETS optimization to hammer

Added an optimization that merges multiple pending GETS requests into a
single request to the owner node.

14 years agoruby: Fixed minor bug in ruby test for setting the request type
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
ruby: Fixed minor bug in ruby test for setting the request type

14 years agoruby: Stall and wait input messages instead of recycling
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
ruby: Stall and wait input messages instead of recycling

This patch allows messages to be stalled in their input buffers and wait
until a corresponding address changes state.  In order to make this work,
all in_ports must be ranked in order of dependence and those in_ports that
may unblock an address, must wake up the stalled messages.  Alot of this
complexity is handled in slicc and the specification files simply
annotate the in_ports.

--HG--
rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/StallAndWaitStatementAST.py
rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/WakeUpDependentsStatementAST.py

14 years agoruby: Recycle latency fix for hammer
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
ruby: Recycle latency fix for hammer

Patch allows each individual message buffer to have different recycle latencies
and allows the overall recycle latency to be specified at the cmd line. The
patch also adds profiling info to make sure no one processor's requests are
recycled too much.

14 years agoMOESI_hammer: break down miss latency stalled cycles
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
MOESI_hammer: break down miss latency stalled cycles

This patch tracks the number of cycles a transaction is delayed at different
points of the request-forward-response loop.

14 years agoruby: added probe filter support to hammer
Brad Beckmann [Fri, 20 Aug 2010 18:46:14 +0000 (11:46 -0700)]
ruby: added probe filter support to hammer

14 years agoruby: fixed DirectoryMemory's numa_high_bit configuration
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: fixed DirectoryMemory's numa_high_bit configuration

This fix includes the off-by-one bit selection bug for numa mapping.

14 years agoruby: Reset ruby stats in RubySystem unserialize
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: Reset ruby stats in RubySystem unserialize

The main purpose for clearing stats in the unserialize process is so
that the profiler can correctly set its start time to the unserialized
value of curTick.

14 years agoruby: Disable migratory sharing for token and hammer
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: Disable migratory sharing for token and hammer

This patch allows one to disable migratory sharing for those cache blocks that
are accessed by atomic requests.  While the implementations are different
between the token and hammer protocols, the motivation is the same.  For
Alpha, LLSC semantics expect that normal loads do not unlock cache blocks that
have been locked by LL accesses.  Therefore, locked blocks should not transfer
write permissions when responding to these load requests.  Instead, only they
only transfer read permissions so that the subsequent SC access can possibly
succeed.

14 years agoruby: Added SC fail indication to trace profiling
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: Added SC fail indication to trace profiling

14 years agodevices: Fixed periodic interrupts to work with draining
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
devices: Fixed periodic interrupts to work with draining

Added drain functions to the RTC and 8254 timer so that periodic interrupts
stop when the system is draining.  This patch is needed to checkpoint in
timing mode.  Otherwise under certain situations, the event queue will never
be completely empty.

14 years agoruby: Fixed RubyPort sendTiming callbacks
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: Fixed RubyPort sendTiming callbacks

Fixed RubyPort schedSendTiming calls to match ruby frequency.

14 years agoruby: Improved try except blocks in ruby creation
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: Improved try except blocks in ruby creation

Replaced the sys.exit in the try-except blocks with raise so that the python
call stack will be printed

14 years agoruby: fixed token bugs associated with owner token counts
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
ruby: fixed token bugs associated with owner token counts

This patch fixes several bugs related to previous inconsistent assumptions on
how many tokens the Owner had.  Mike Marty should have fixes these bugs years
ago.  :)

14 years agoconfig: added cmd options to control ruby debug
Brad Beckmann [Fri, 20 Aug 2010 18:46:13 +0000 (11:46 -0700)]
config: added cmd options to control ruby debug