sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
8272 commits 2 branches 0 tags 204 MiB
Commit graph

8272 commits

This branch
This branch
All branches
Author SHA1 Message Date
Steve Reinhardt
1249728494 cache: fail SC when invalidated while waiting for bus 
Corrects an oversight in cset f97b62be544f.  The fix there only
failed queued SCUpgradeReq packets that encountered an
invalidation, which meant that the upgrade had to reach the L2
cache.  To handle pending requests in the L1 we must similarly
fail StoreCondReq packets too.
 2010-09-09 14:40:19 -04:00
Steve Reinhardt
6dc599ea9b mem: fix functional accesses to deal with coherence change 
We can't just obliviously return the first valid cache block
we find any more... see comments for details.
 2010-09-09 14:40:19 -04:00
Steve Reinhardt
71aca6d29e cache: coherence protocol enhancements & bug fixes 
Allow lower-level caches (e.g., L2 or L3) to pass exclusive
copies to higher levels (e.g., L1).  This eliminates a lot
of unnecessary upgrade transactions on read-write sequences
to non-shared data.

Also some cleanup of MSHR coherence handling and multiple
bug fixes.
 2010-09-09 14:40:18 -04:00
Gabe Black
7c4dc4491a ARM: Get rid of the checkFpEnableFault function in ARM. 2010-08-31 09:50:49 -07:00
Gabe Black
ebf5c5b91b Alpha: Alpha's mt.hh was including mips header files. 2010-08-31 09:48:05 -07:00
Gabe Black
c9d01c6557 CPU: Get rid of the unused ev5_trap function on the simple and checker CPUs. 2010-08-31 09:47:29 -07:00
Brad Beckmann
8f1f83d13d config: fixed numa high bit setting bug 2010-08-30 15:26:51 -07:00
Brad Beckmann
08b360e0e0 config: minor fix to probe filter index setting 2010-08-30 12:07:21 -07:00
Nathan Binkert
6d207bf40d ruby: None, not none 2010-08-29 07:02:42 -07:00
Gabe Black
794ca517f2 X86: Change the copyright holder to AMD. 
I accidentally left myself as a placeholder copyright holder on this file when
I checked it in. Copyright should be assigned to AMD.
 2010-08-27 15:35:36 -07:00
Steve Reinhardt
3ffc4505f7 mem: fix m5.fast compile bug in previous cset 2010-08-26 08:03:20 -07:00
Steve Reinhardt
1bf944be62 cache: fix a bug in atomic multilevel snoops 2010-08-25 21:55:55 -07:00
Steve Reinhardt
ee6a92863a memtest: fix/cleanup functional access testing 
Don't assert that the response packet is marked as a response
since it won't always be so for functional accesses.

Also cleanup code to refer to functional accesses rather
than "probes" (old terminology), and mention in the
DPRINTF which type of access we're doing.
 2010-08-25 21:55:44 -07:00
Steve Reinhardt
6d9fc4175e memtest: scale associativity and mshrs according to config 
Use the actual fanouts in the tree specification to scale
cache associativity and mshrs instead of dumb constants.
 2010-08-25 21:55:42 -07:00
Ali Saidi
546eaa6109 CPU: Print out traces for faluting inst when the flag ExecFaulting is set 2010-08-25 19:10:43 -05:00
Min Kyu Jeong
dee8f3d500 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.
 2010-08-25 19:10:43 -05:00
Gene WU
b52fed4747 ARM: Seperate the queues of L1 and L2 walker states. 2010-08-25 19:10:43 -05:00
Min Kyu Jeong
c23e8c31eb 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.
 2010-08-25 19:10:43 -05:00
William Wang
8376f7bca3 ARM: Remove ALPHA KSeg functions. 
These were erronously copied years ago into the ARM directory.
 2010-08-25 19:10:43 -05:00
Ali Saidi
c0b54f579c ARM: Limited implementation of dprintk. 
Does not work with vfp arguments or arguments passed on the stack.
 2010-08-25 19:10:43 -05:00
Min Kyu Jeong
e1168e72ca 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
 2010-08-25 19:10:43 -05:00
Ali Saidi
edca5f7da6 ARM: Make VMSR, RFE PC/LR etc non speculative, and serializing 2010-08-25 19:10:43 -05:00
Ali Saidi
e6d3fe8a0c ARM: Update regression tests for ldr/str microcode changes. 2010-08-25 19:10:42 -05:00
Gene WU
4d8f4db8d1 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.
 2010-08-25 19:10:42 -05:00
Ali Saidi
c2d5d2b53d ARM: Set the high bits in the part number so it's considered new by some code. 2010-08-25 19:10:42 -05:00
Ali Saidi
99fafb72b8 ARM: Fix VFP enabled checks for mem instructions 2010-08-25 19:10:42 -05:00
Gabe Black
63464d950e ARM: Seperate out the renamable bits in the FPSCR. 2010-08-25 19:10:42 -05:00
Gabe Black
93ce7238bf ARM: Eliminate some unused enums. 2010-08-25 19:10:42 -05:00
Gabe Black
0efe2f6769 ARM: Fix type comparison warnings in Neon. 2010-08-25 19:10:42 -05:00
Gabe Black
54a919f225 ARM: Implement CPACR register and return Undefined Instruction when FP access is disabled. 2010-08-25 19:10:42 -05:00
Gabe Black
6368edb281 ARM: Implement all ARM SIMD instructions. 2010-08-25 19:10:42 -05:00
Gabe Black
f4f6b31df1 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.
 2010-08-25 19:10:41 -05:00
Ali Saidi
75955d6c42 Tracing: Fix trace so 'Predicated False' doesn't show up 2010-08-25 19:10:41 -05:00
Steve Reinhardt
62c06c1403 mem: fix dumb typo in copyrights 2010-08-25 14:08:27 -07:00
Brad Beckmann
d4318457d1 config: changed ruby config file names to be consistent 2010-08-24 14:08:23 -07:00
Brad Beckmann
0e610290d0 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.
 2010-08-24 13:20:32 -07:00
Brad Beckmann
8572d8fd91 config: fixed ruby dma device connections 2010-08-24 13:20:31 -07:00
Brad Beckmann
e983ef9e8c 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
 2010-08-24 12:07:22 -07:00
Brad Beckmann
20b2f0ce9f MOESI_hammer: fixed bug for dma reads in single cpu systems 2010-08-24 12:06:53 -07:00
Gabe Black
c13640a89c Faults: Get rid of some commented out code in sim/faults.hh. 2010-08-23 16:23:47 -07:00
Gabe Black
25ffa8eb8b 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
 2010-08-23 16:14:24 -07:00
Gabe Black
7a6ed1b10b Power: Get rid of unused checkFpEnableFault. 
This function was brought in from another ISA and doesn't actually do anything
or get used.
 2010-08-23 16:14:23 -07:00
Gabe Black
943c171480 ISA: Get rid of old, unused utility functions cluttering up the ISAs. 2010-08-23 16:14:20 -07:00
Gabe Black
9581562e65 X86: Get rid of the flagless microop constructor. 
This will reduce clutter in the source and hopefully speed up compilation.
 2010-08-23 09:44:19 -07:00
Gabe Black
f6182f948b 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.
 2010-08-23 09:44:19 -07:00
Gabe Black
172e45fc97 X86: Make the x86 ExtMachInst serializable with (UN)SERIALIZE_SCALAR. 
--HG--
rename : src/arch/x86/types.hh => src/arch/x86/types.cc
 2010-08-23 09:44:19 -07:00
Gabe Black
249549f9c3 X86: Define a noop ExtMachInst. 2010-08-23 09:44:19 -07:00
Gabe Black
d43eb42d00 X86: Mark serializing macroops and regular instructions as such. 2010-08-23 09:44:19 -07:00
Gabe Black
69fc2af006 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.
 2010-08-23 09:44:19 -07:00
Gabe Black
5a1dbe4d99 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.
 2010-08-23 09:44:19 -07:00