Searched hist:2011 (Results 226 - 250 of 897) sorted by relevance

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/gem5/src/arch/arm/isa/formats/
H A Dmult.isa8520:f9a495adafd9 Fri Aug 19 16:08:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for DIV/SDIV instructions.
H A Dpred.isa8304:16911ff780d3 Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Construct the predicate test register for more instruction programatically.

If one of the condition codes isn't being used in the execution we should only
read it if the instruction might be dependent on it. With the preeceding changes
there are several more cases where we should dynamically pick instead of assuming
as we did before.
8303:5a95f1d2494e Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Further break up condition code into NZ, C, V bits.

Break up the condition code bits into NZ, C, V registers. These are individually
written and this removes some incorrect dependencies between instructions.
8301:858384f3af1c Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Break up condition codes into normal flags, saturation, and simd.

This change splits out the condcodes from being one monolithic register
into three blocks that are updated independently. This allows CPUs
to not have to do RMW operations on the flags registers for instructions
that don't write all flags.
/gem5/src/arch/arm/isa/templates/
H A Dmacromem.isa8205:7ecbffb674aa Mon Apr 04 12:42:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Cleanup implementation of ITSTATE and put important code in PCState.

Consolidate all code to handle ITSTATE in the PCState object rather than
touching a variety of structures/objects.
8140:7449084b1612 Thu Mar 17 20:20:00 EDT 2011 Matt Horsnell <Matt.Horsnell@arm.com> ARM: Fix RFE macrop.

This changes the RFE macroop into 3 microops:

URa = [sp]; URb = [sp+4]; // load CPSR,PC values from stack
sp = sp + offset; // optionally auto-increment
PC = URa; CPSR = URb; // write to the PC and CPSR.

Importantly:
- writing to PC is handled in the last micro-op.
- loading occurs prior to state changes.
8072:128afe2b3a35 Wed Feb 23 16:10:00 EST 2011 Giacomo Gabrielli <Giacomo.Gabrielli@arm.com> ARM: NEON instruction templates modified to set the predicate flag to false when needed.
7848:cc5e64f8423f Tue Jan 18 17:30:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for moving predicated false dest operands from sources.
H A Dmult.isa7848:cc5e64f8423f Tue Jan 18 17:30:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for moving predicated false dest operands from sources.
/gem5/src/arch/power/isa/formats/
H A Dmem.isa8607:5fb918115c07 Mon Oct 31 04:09:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> GCC: Get everything working with gcc 4.6.1.

And by "everything" I mean all the quick regressions.
8450:40e10746b049 Tue Jul 05 19:52:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> ISAs: Streamline some spots where Mem is used in the ISA descriptions.
8448:86ed97566b23 Tue Jul 05 19:48:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> ISA parser: Simplify operand type handling.

This change simplifies the code surrounding operand type handling and makes it
depend only on the ctype that goes with each operand type. Future changes will
allow defining operand types by their ctypes directly, convert the ISAs over
to that style of definition, and then remove support for the old style. These
changes are to make it easier to use non-builtin types like classes or
structures as the type for operands.
8442:b1f3dfae06f1 Sun Jul 03 01:34:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> ISA: Use readBytes/writeBytes for all instruction level memory operations.
/gem5/src/arch/power/insts/
H A Dmem.hh7811:a8fc35183c10 Mon Jan 03 17:35:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> Make commenting on close namespace brackets consistent.

Ran all the source files through 'perl -pi' with this script:

s|\s*(};?\s*)?/\*\s*(end\s*)?namespace\s*(\S+)\s*\*/(\s*})?|} // namespace $3|;
s|\s*};?\s*//\s*(end\s*)?namespace\s*(\S+)\s*|} // namespace $2\n|;
s|\s*};?\s*//\s*(\S+)\s*namespace\s*|} // namespace $1\n|;

Also did a little manual editing on some of the arch/*/isa_traits.hh files
and src/SConscript.
/gem5/src/base/vnc/
H A Dvncserver.cc8635:23ba076b2cca Thu Dec 01 03:15:00 EST 2011 Chris Emmons <chris.emmons@arm.com> VNC: Add support for capturing frame buffer to file each time it is changed.

When a change in the frame buffer from the VNC server is detected, the new
frame is stored out to the m5out/frames_*/ directory. Specifiy the flag
"--frame-capture" when running configs/example/fs.py to enable this behavior.
8232:b28d06a175be Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
8229:78bf55f23338 Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> includes: sort all includes
7949:e59dac494020 Fri Feb 11 19:29:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> VNC: Add VNC server to M5
/gem5/src/cpu/o3/
H A Dimpl.hh8229:78bf55f23338 Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> includes: sort all includes
/gem5/src/dev/arm/
H A Dtimer_sp804.cc8524:1ddd1aa0e55b Fri Aug 19 16:08:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for Versatile Express boards
8245:a9d06c894afe Wed Apr 20 21:45:00 EDT 2011 Nathan Binkert <nate@binkert.org> fix some build problems from prior changesets
7943:02f63121a9a1 Fri Feb 11 19:29:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Fix timer calculations.

The timer calculations were a bit off so time would run faster than
it otherwise should
7823:dac01f14f20f Sat Jan 08 00:50:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> Replace curTick global variable with accessor functions.
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
H A Drv_ctrl.hh8524:1ddd1aa0e55b Fri Aug 19 16:08:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for Versatile Express boards
8281:a8c4b7a24d62 Wed May 04 21:38:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for some more registers in the real view controller.
7950:1120b07dd4b0 Fri Feb 11 19:29:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> VNC/ARM: Use VNC server and add support to boot into X11
/gem5/src/mem/ruby/network/
H A DTopology.cc8645:89929730804b Sat Dec 31 19:44:00 EST 2011 Nilay Vaish<nilay@cs.wisc.edu> Ruby: Shuffle some of the included files
This patch adds and removes included files from some of the files so as to
organize remove some false dependencies and include some files directly
instead of transitively.
8485:7a9a7f2a3d46 Wed Aug 03 19:25:00 EDT 2011 Nilay Vaish<nilay@cs.wisc.edu> Ruby: Remove files and includes not in use
8257:7226aebb77b4 Thu Apr 28 20:18:00 EDT 2011 Brad Beckmann <Brad.Beckmann@amd.com> network: convert links & switches to first class C++ SimObjects

This patch converts links and switches from second class simobjects that were
virtually ignored by the networks (both simple and Garnet) to first class
simobjects that directly correspond to c++ ojbects manipulated by the
topology and network classes. This is especially true for Garnet, where the
links and switches directly correspond to specific C++ objects.

By making this change, many aspects of the Topology class were simplified.
8255:73089f793a0a Thu Apr 28 20:18:00 EDT 2011 Brad Beckmann <Brad.Beckmann@amd.com> ruby: moved topology to the top network directory

Moved the Topology class to the top network directory because it is shared by
both the simple and Garnet networks.
/gem5/src/mem/ruby/network/simple/
H A DSimpleLink.py8258:7c377f5162f8 Thu Apr 28 20:18:00 EDT 2011 Brad Beckmann <Brad.Beckmann@amd.com> network: basic link bw for garnet and simple networks

This patch ensures that both Garnet and the simple networks use the bw value
specified in the topology. To do so, the patch generalizes the specification
of bw for basic links. This value is then translated to the specific value
used by the simple and Garnet networks. Since Garent does not support
non-uniformed link bandwidth, the patch also adds a check to ensure all bws are
equal.
/gem5/util/
H A Dgem5img.py8265:7939dd0c4ff2 Fri Apr 29 04:46:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> Util: Replace mkblankimage.sh with the new gem5img.py.

This change replaces the mkblankimage.sh script, used for creating new disk
images, with a new gem5img.py script. The new version is written in python
instead of bash, takes its parameters from command line arguments instead of
prompting for them, and finds a free loopback device dynamically instead of
hardcoding /dev/loop1. The file system used is now optionally configurable,
and the blank image is filled by a "hole" left by lseek and write instead of
literally filling it with zeroes.

The functionality of the new script is broken into subcommands "init",
"mount", "umount", "new", "partition", and "format". "init" creates a new file
of the appropriate size, partitions it, and then formats the first (and only)
new parition. "mount" attaches a new loopback device to the first parition of
the image file and mounts it to the specified mount point. "umount" unmounts
the specified mount point and identifies and cleans up the underlying loopback
device. "new", "partition", and "format" are the individual stages of "init"
but broken out so they can be run individually. That's so an image can be
reinitialized in place if needed.

Two features of the original script are being dropped. The first is the
ability to specify a source directory to copy into the new file system. The
second is the ability to specify a list of commands to run which are expected
to (but not required to) update the permissions of the files in the new fs.
Both of these seem easy enough to do manually, especially given the "mount"
and "umount" commands, that removing them would meaningfully simplify the
script without making it less useful.
/gem5/src/arch/mips/
H A Disa.cc8232:b28d06a175be Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
8229:78bf55f23338 Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> includes: sort all includes
8181:f789b9aac5f4 Sat Mar 26 09:23:00 EDT 2011 Korey Sewell <ksewell@umich.edu> mips: cleanup ISA-specific code
***
(1): get rid of expandForMT function
MIPS is the only ISA that cares about having a piece of ISA state integrate
multiple threads so add constants for MIPS and relieve the other ISAs from having
to define this. Also, InOrder was the only core that was actively calling
this function
* * *
(2): get rid of corespecific type
The CoreSpecific type was used as a proxy to pass in HW specific params to
a MIPS CPU, but since MIPS FS hasnt been touched for awhile, it makes sense
to not force every other ISA to use CoreSpecific as well use a special
reset function to set it. That probably should go in a PowerOn reset fault
anyway.
7823:dac01f14f20f Sat Jan 08 00:50:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> Replace curTick global variable with accessor functions.
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
/gem5/src/arch/arm/isa/insts/
H A Dmisc.isa8782:10c9297e14d5 Wed Nov 02 04:25:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> SE/FS: Get rid of FULL_SYSTEM in the ARM ISA.
8628:764346848617 Thu Dec 01 03:15:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add IsSerializeAfter and IsNonSpeculative flag to the syscall instruction .

Squashes the subsequent instructions in O3 pipe after the service call, so that
they see the effect of the system call when re-executed. This isn't really an issue
with FS mode, but can show up in SE mode.
8588:ef28ed90449d Tue Sep 27 02:48:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> ISA parser: Use '_' instead of '.' to delimit type modifiers on operands.

By using an underscore, the "." is still available and can unambiguously be
used to refer to members of a structure if an operand is a structure, class,
etc. This change mostly just replaces the appropriate "."s with "_"s, but
there were also a few places where the ISA descriptions where handling the
extensions themselves and had their own regular expressions to update. The
regular expressions in the isa parser were updated as well. It also now
looks for one of the defined type extensions specifically after connecting "_"
where before it would look for any sequence of characters after a "."
following an operand name and try to use it as the extension. This helps to
disambiguate cases where a "_" may legitimately be part of an operand name but
not separate the name from the type suffix.

Because leaving the "_" and suffix on the variable name still leaves a valid
C++ identifier and all extensions need to be consistent in a given context, I
considered leaving them on as a breadcrumb that would show what the intended
type was for that operand. Unfortunately the operands can be referred to in
code templates, the Mem operand in particular, and since the exact type of Mem
can be different for different uses of the same template, that broke things.
8518:9c87727099ce Fri Aug 19 16:08:00 EDT 2011 Geoffrey Blake <geoffrey.blake@arm.com> Fix bugs due to interaction between SEV instructions and O3 pipeline

SEV instructions were originally implemented to cause asynchronous squashes
via the generateTCSquash() function in the O3 pipeline when updating the
SEV_MAILBOX miscReg. This caused race conditions between CPUs in an MP system
that would lead to a pipeline either going inactive indefinitely or not being
able to commit squashed instructions. Fixed SEV instructions to behave like
interrupts and cause synchronous sqaushes inside the pipeline, eliminating
the race conditions. Also fixed up the semantics of the WFE instruction to
behave as documented in the ARMv7 ISA description to not sleep if SEV_MAILBOX=1
or unmasked interrupts are pending.
8304:16911ff780d3 Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Construct the predicate test register for more instruction programatically.

If one of the condition codes isn't being used in the execution we should only
read it if the instruction might be dependent on it. With the preeceding changes
there are several more cases where we should dynamically pick instead of assuming
as we did before.
8303:5a95f1d2494e Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Further break up condition code into NZ, C, V bits.

Break up the condition code bits into NZ, C, V registers. These are individually
written and this removes some incorrect dependencies between instructions.
8302:9f23d01421de Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Remove the saturating (Q) condition code from the renamed register.

Move the saturating bit (which is also saturating) from the renamed register
that holds the flags to the CPSR miscreg and adds a allows setting it in a
similar way to the FP saturating registers. This removes a dependency in
instructions that don't write, but need to preserve the Q bit.
8301:858384f3af1c Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Break up condition codes into normal flags, saturation, and simd.

This change splits out the condcodes from being one monolithic register
into three blocks that are updated independently. This allows CPUs
to not have to do RMW operations on the flags registers for instructions
that don't write all flags.
8285:c38905a6fa32 Wed May 04 21:38:00 EDT 2011 Prakash Ramrakhyani <Prakash.Ramrakhyani@arm.com> ARM: Implement WFE/WFI/SEV semantics.
8209:9e3f7f00fa90 Mon Apr 04 12:42:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Use CPU local lock before sending load to mem system.

This change uses the locked_mem.hh header to handle implementing CLREX. It
simplifies the current implementation greatly.
/gem5/src/dev/sparc/
H A Diob.cc8742:9df38d259935 Tue Oct 04 05:26:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> SE/FS: Put platform pointers in fewer objects.

Not all objects need a platform pointer, and having one creates a dependence
on their being a platform object. This change removes the platform pointer to
from the base device object and moves it into subclasses that actually need
it.
8739:925f15f96322 Fri Sep 30 03:28:00 EDT 2011 Gabe Black <gblack@eecs.umich.edu> SE/FS: Build the devices in SE mode.
8232:b28d06a175be Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
8229:78bf55f23338 Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> includes: sort all includes
/gem5/src/mem/cache/prefetch/
H A Daccess_map_pattern_matching.cc13554:f16adb9b35cc Wed Dec 12 18:08:00 EST 2018 Javier Bueno <javier.bueno@metempsy.com> mem-cache: Access Map Pattern Matching Prefetcher

Implementation of the Access Map Pattern Matching prefetcher
Based in the description of the following paper:
Access map pattern matching for high performance data cache prefetch.
Ishii, Y., Inaba, M., & Hiraki, K. (2011).
Journal of Instruction-Level Parallelism, 13, 1-24.

Change-Id: I0d4b7f7afc2ab4938bdd8755bfed26e26a28530c
Reviewed-on: https://gem5-review.googlesource.com/c/15096
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
/gem5/src/mem/slicc/ast/
H A D__init__.py8170:c1c6f36e118e Sun Mar 20 10:23:00 EDT 2011 Nilay Vaish<nilay@cs.wisc.edu> SLICC: Remove WakeUp* import calls from ast/__init__.py
I had recently committed a patch that removed the WakeUp*.py files from the
slicc/ast directory. I had forgotten to remove the import calls for these
files from slicc/ast/__init__.py. This resulted in error while running
regressions on zizzer. This patch does the needful.
8086:bf0335d98250 Wed Feb 23 19:41:00 EST 2011 Brad Beckmann <Brad.Beckmann@amd.com> ruby: automate permission setting

This patch integrates permissions with cache and memory states, and then
automates the setting of permissions within the generated code. No longer
does one need to manually set the permissions within the setState funciton.
This patch will faciliate easier functional access support by always correctly
setting permissions for both cache and memory states.
7922:7532067f818e Mon Feb 07 01:14:00 EST 2011 Brad Beckmann <Brad.Beckmann@amd.com> ruby: support to stallAndWait the mandatory queue

By stalling and waiting the mandatory queue instead of recycling it, one can
ensure that no incoming messages are starved when the mandatory queue puts
signficant of pressure on the L1 cache controller (i.e. the ruby memtester).
7839:9e556fb25900 Mon Jan 17 19:46:00 EST 2011 Nilay Vaish<nilay@cs.wisc.edu> Change interface between coherence protocols and CacheMemory
The purpose of this patch is to change the way CacheMemory interfaces with
coherence protocols. Currently, whenever a cache controller (defined in the
protocol under consideration) needs to carry out any operation on a cache
block, it looks up the tag hash map and figures out whether or not the block
exists in the cache. In case it does exist, the operation is carried out
(which requires another lookup). As observed through profiling of different
protocols, multiple such lookups take place for a given cache block. It was
noted that the tag lookup takes anything from 10% to 20% of the simulation
time. In order to reduce this time, this patch is being posted.

I have to acknowledge that the many of the thoughts that went in to this
patch belong to Brad.

Changes to CacheMemory, TBETable and AbstractCacheEntry classes:
1. The lookup function belonging to CacheMemory class now returns a pointer
to a cache block entry, instead of a reference. The pointer is NULL in case
the block being looked up is not present in the cache. Similar change has
been carried out in the lookup function of the TBETable class.
2. Function for setting and getting access permission of a cache block have
been moved from CacheMemory class to AbstractCacheEntry class.
3. The allocate function in CacheMemory class now returns pointer to the
allocated cache entry.

Changes to SLICC:
1. Each action now has implicit variables - cache_entry and tbe. cache_entry,
if != NULL, must point to the cache entry for the address on which the action
is being carried out. Similarly, tbe should also point to the transaction
buffer entry of the address on which the action is being carried out.
2. If a cache entry or a transaction buffer entry is passed on as an
argument to a function, it is presumed that a pointer is being passed on.
3. The cache entry and the tbe pointers received __implicitly__ by the
actions, are passed __explicitly__ to the trigger function.
4. While performing an action, set/unset_cache_entry, set/unset_tbe are to
be used for setting / unsetting cache entry and tbe pointers respectively.
5. is_valid() and is_invalid() has been made available for testing whether
a given pointer 'is not NULL' and 'is NULL' respectively.
6. Local variables are now available, but they are assumed to be pointers
always.
7. It is now possible for an object of the derieved class to make calls to
a function defined in the interface.
8. An OOD token has been introduced in SLICC. It is same as the NULL token
used in C/C++. If you are wondering, OOD stands for Out Of Domain.
9. static_cast can now taken an optional parameter that asks for casting the
given variable to a pointer of the given type.
10. Functions can be annotated with 'return_by_pointer=yes' to return a
pointer.
11. StateMachine has two new variables, EntryType and TBEType. EntryType is
set to the type which inherits from 'AbstractCacheEntry'. There can only be
one such type in the machine. TBEType is set to the type for which 'TBE' is
used as the name.

All the protocols have been modified to conform with the new interface.
H A DMethodCallExprAST.py8644:acf68e5a8cd7 Sat Dec 31 17:38:00 EST 2011 Nilay Vaish<nilay@cs.wisc.edu> SLICC: Use pointers for directory entries
SLICC uses pointers for cache and TBE entries but not for directory entries.
This patch changes the protocols, SLICC and Ruby memory system so that even
directory entries are referenced using pointers.
8341:30daf1dd5c91 Wed Jun 08 12:58:00 EDT 2011 Nilay Vaish<nilay@cs.wisc.edu> Ruby: Correctly set access permissions for directory entries
The access permissions for the directory entries are not being set correctly.
This is because pointers are not used for handling directory entries.
function. get and set functions for access permissions have been added to the
Controller state machine. The changePermission() function provided by the
AbstractEntry and AbstractCacheEntry classes has been exposed to SLICC
code once again. The set_permission() functionality has been removed.

NOTE: Each protocol will have to define these get and set functions in order
to compile successfully.
7839:9e556fb25900 Mon Jan 17 19:46:00 EST 2011 Nilay Vaish<nilay@cs.wisc.edu> Change interface between coherence protocols and CacheMemory
The purpose of this patch is to change the way CacheMemory interfaces with
coherence protocols. Currently, whenever a cache controller (defined in the
protocol under consideration) needs to carry out any operation on a cache
block, it looks up the tag hash map and figures out whether or not the block
exists in the cache. In case it does exist, the operation is carried out
(which requires another lookup). As observed through profiling of different
protocols, multiple such lookups take place for a given cache block. It was
noted that the tag lookup takes anything from 10% to 20% of the simulation
time. In order to reduce this time, this patch is being posted.

I have to acknowledge that the many of the thoughts that went in to this
patch belong to Brad.

Changes to CacheMemory, TBETable and AbstractCacheEntry classes:
1. The lookup function belonging to CacheMemory class now returns a pointer
to a cache block entry, instead of a reference. The pointer is NULL in case
the block being looked up is not present in the cache. Similar change has
been carried out in the lookup function of the TBETable class.
2. Function for setting and getting access permission of a cache block have
been moved from CacheMemory class to AbstractCacheEntry class.
3. The allocate function in CacheMemory class now returns pointer to the
allocated cache entry.

Changes to SLICC:
1. Each action now has implicit variables - cache_entry and tbe. cache_entry,
if != NULL, must point to the cache entry for the address on which the action
is being carried out. Similarly, tbe should also point to the transaction
buffer entry of the address on which the action is being carried out.
2. If a cache entry or a transaction buffer entry is passed on as an
argument to a function, it is presumed that a pointer is being passed on.
3. The cache entry and the tbe pointers received __implicitly__ by the
actions, are passed __explicitly__ to the trigger function.
4. While performing an action, set/unset_cache_entry, set/unset_tbe are to
be used for setting / unsetting cache entry and tbe pointers respectively.
5. is_valid() and is_invalid() has been made available for testing whether
a given pointer 'is not NULL' and 'is NULL' respectively.
6. Local variables are now available, but they are assumed to be pointers
always.
7. It is now possible for an object of the derieved class to make calls to
a function defined in the interface.
8. An OOD token has been introduced in SLICC. It is same as the NULL token
used in C/C++. If you are wondering, OOD stands for Out Of Domain.
9. static_cast can now taken an optional parameter that asks for casting the
given variable to a pointer of the given type.
10. Functions can be annotated with 'return_by_pointer=yes' to return a
pointer.
11. StateMachine has two new variables, EntryType and TBEType. EntryType is
set to the type which inherits from 'AbstractCacheEntry'. There can only be
one such type in the machine. TBEType is set to the type for which 'TBE' is
used as the name.

All the protocols have been modified to conform with the new interface.
/gem5/src/cpu/testers/directedtest/
H A DInvalidateGenerator.hh8229:78bf55f23338 Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> includes: sort all includes
/gem5/src/arch/arm/
H A Dmiscregs.hh8552:f51e3dce9521 Tue Sep 13 01:06:00 EDT 2011 Daniel Johnson <daniel.johnson@arm.com> ARM: update TLB to set request packet ASID field
8550:8ac6c1fa657f Tue Sep 13 01:06:00 EDT 2011 Chander Sudanthi<Chander.Sudanthi@ARM.com> CP15 c15: enable execution with accesses to c15 registers

Previously, coprocessor accesses to CP15 c15 would fault. This patch
enables accesses but prints out a warning, as the registers are not implemented.
8549:7cff2156c998 Tue Sep 13 01:06:00 EDT 2011 Daniel Johnson <daniel.johnson@arm.com> ARM: Implement numcpus bits in L2CTLR register.
8468:5e9530779f60 Fri Jul 15 12:53:00 EDT 2011 Wade Walker <wade.walker@arm.com> ARM: Add two unimplemented miscellaneous registers.

Adds MISCREG_ID_MMFR2 and removes break on access to MISCREG_CLIDR. Both
registers now return values that are consistent with current ARM
implementations.
8303:5a95f1d2494e Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Further break up condition code into NZ, C, V bits.

Break up the condition code bits into NZ, C, V registers. These are individually
written and this removes some incorrect dependencies between instructions.
8302:9f23d01421de Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Remove the saturating (Q) condition code from the renamed register.

Move the saturating bit (which is also saturating) from the renamed register
that holds the flags to the CPSR miscreg and adds a allows setting it in a
similar way to the FP saturating registers. This removes a dependency in
instructions that don't write, but need to preserve the Q bit.
8301:858384f3af1c Fri May 13 18:27:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Break up condition codes into normal flags, saturation, and simd.

This change splits out the condcodes from being one monolithic register
into three blocks that are updated independently. This allows CPUs
to not have to do RMW operations on the flags registers for instructions
that don't write all flags.
8299:64a938a8b7fc Fri May 13 18:27:00 EDT 2011 Chander Sudanthi <chander.sudanthi@arm.com> ARM: Better RealView/Versatile EB platform support.

Add registers and components to better support the VersatileEB board.
Made the MIDR and SYS_ID register parameters to ArmSystem and RealviewCtrl
respectively.
8284:2fcad6253525 Wed May 04 21:38:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for MP misc regs and broadcast flushes.
8209:9e3f7f00fa90 Mon Apr 04 12:42:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Use CPU local lock before sending load to mem system.

This change uses the locked_mem.hh header to handle implementing CLREX. It
simplifies the current implementation greatly.
/gem5/src/mem/ruby/common/
H A DNetDest.hh8608:02d7ac5fb855 Thu Nov 03 23:46:00 EDT 2011 Nilay Vaish<nilay@cs.wisc.edu> Ruby: Remove some unused typedefs
This patch removes some of the unused typedefs. It also moves
some of the typedefs from Global.hh to TypeDefines.hh. The patch
also eliminates the file NodeID.hh.
8232:b28d06a175be Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing. This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
8054:9138d38eccd7 Wed Feb 23 00:58:00 EST 2011 Korey Sewell <ksewell@umich.edu> ruby: cleaning up RubyQueue and RubyNetwork dprintfs
Overall, continue to progress Ruby debug messages to more of the normal M5
debug message style
- add a name() to the Ruby Throttle & PerfectSwitch objects so that the debug output
isn't littered w/"global:" everywhere.
- clean up messages that print over multiple lines when possible
- clean up duplicate prints in the message buffer
/gem5/src/mem/ruby/slicc_interface/
H A DAbstractCacheEntry.cc8086:bf0335d98250 Wed Feb 23 19:41:00 EST 2011 Brad Beckmann <Brad.Beckmann@amd.com> ruby: automate permission setting

This patch integrates permissions with cache and memory states, and then
automates the setting of permissions within the generated code. No longer
does one need to manually set the permissions within the setState funciton.
This patch will faciliate easier functional access support by always correctly
setting permissions for both cache and memory states.
8084:d1bb88080be4 Wed Feb 23 19:41:00 EST 2011 Brad Beckmann <Brad.Beckmann@amd.com> ruby: cleaned up access permission enum
7839:9e556fb25900 Mon Jan 17 19:46:00 EST 2011 Nilay Vaish<nilay@cs.wisc.edu> Change interface between coherence protocols and CacheMemory
The purpose of this patch is to change the way CacheMemory interfaces with
coherence protocols. Currently, whenever a cache controller (defined in the
protocol under consideration) needs to carry out any operation on a cache
block, it looks up the tag hash map and figures out whether or not the block
exists in the cache. In case it does exist, the operation is carried out
(which requires another lookup). As observed through profiling of different
protocols, multiple such lookups take place for a given cache block. It was
noted that the tag lookup takes anything from 10% to 20% of the simulation
time. In order to reduce this time, this patch is being posted.

I have to acknowledge that the many of the thoughts that went in to this
patch belong to Brad.

Changes to CacheMemory, TBETable and AbstractCacheEntry classes:
1. The lookup function belonging to CacheMemory class now returns a pointer
to a cache block entry, instead of a reference. The pointer is NULL in case
the block being looked up is not present in the cache. Similar change has
been carried out in the lookup function of the TBETable class.
2. Function for setting and getting access permission of a cache block have
been moved from CacheMemory class to AbstractCacheEntry class.
3. The allocate function in CacheMemory class now returns pointer to the
allocated cache entry.

Changes to SLICC:
1. Each action now has implicit variables - cache_entry and tbe. cache_entry,
if != NULL, must point to the cache entry for the address on which the action
is being carried out. Similarly, tbe should also point to the transaction
buffer entry of the address on which the action is being carried out.
2. If a cache entry or a transaction buffer entry is passed on as an
argument to a function, it is presumed that a pointer is being passed on.
3. The cache entry and the tbe pointers received __implicitly__ by the
actions, are passed __explicitly__ to the trigger function.
4. While performing an action, set/unset_cache_entry, set/unset_tbe are to
be used for setting / unsetting cache entry and tbe pointers respectively.
5. is_valid() and is_invalid() has been made available for testing whether
a given pointer 'is not NULL' and 'is NULL' respectively.
6. Local variables are now available, but they are assumed to be pointers
always.
7. It is now possible for an object of the derieved class to make calls to
a function defined in the interface.
8. An OOD token has been introduced in SLICC. It is same as the NULL token
used in C/C++. If you are wondering, OOD stands for Out Of Domain.
9. static_cast can now taken an optional parameter that asks for casting the
given variable to a pointer of the given type.
10. Functions can be annotated with 'return_by_pointer=yes' to return a
pointer.
11. StateMachine has two new variables, EntryType and TBEType. EntryType is
set to the type which inherits from 'AbstractCacheEntry'. There can only be
one such type in the machine. TBEType is set to the type for which 'TBE' is
used as the name.

All the protocols have been modified to conform with the new interface.
/gem5/src/sim/
H A Ddebug.cc8581:56f97760eadd Thu Sep 22 21:59:00 EDT 2011 Steve Reinhardt <steve.reinhardt@amd.com> event: minor cleanup
Initialize flags via the Event constructor instead of calling
setFlags() in the body of the derived class's constructor. I
forget exactly why, but this made life easier when implementing
multi-queue support.

Also rename Event::getFlags() to isFlagSet() to better match
common usage, and get rid of some unused Event methods.
8278:4fe5f7f5094c Wed May 04 21:38:00 EDT 2011 Ali Saidi <Ali.Saidi@ARM.com> Debug: Add a function to cause the simulator to create a checkpoint from GDB.
8231:51cf7f3cf9ac Fri Apr 15 13:44:00 EDT 2011 Nathan Binkert <nate@binkert.org> debug: create a Debug namespace
H A Dstat_control.hh7823:dac01f14f20f Sat Jan 08 00:50:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> Replace curTick global variable with accessor functions.
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
7822:fc475ac7d2a4 Sat Jan 08 00:50:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> stats: rename StatEvent() function to schedStatEvent().
This follows the style rules and is more descriptive.
7811:a8fc35183c10 Mon Jan 03 17:35:00 EST 2011 Steve Reinhardt <steve.reinhardt@amd.com> Make commenting on close namespace brackets consistent.

Ran all the source files through 'perl -pi' with this script:

s|\s*(};?\s*)?/\*\s*(end\s*)?namespace\s*(\S+)\s*\*/(\s*})?|} // namespace $3|;
s|\s*};?\s*//\s*(end\s*)?namespace\s*(\S+)\s*|} // namespace $2\n|;
s|\s*};?\s*//\s*(\S+)\s*namespace\s*|} // namespace $1\n|;

Also did a little manual editing on some of the arch/*/isa_traits.hh files
and src/SConscript.

Completed in 145 milliseconds

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