Commit graph

8464 commits

Author SHA1 Message Date
Mrinmoy Ghosh
3396fd9e84 Branch predictor: Fixes the tournament branch predictor.
Branch predictor could not predict a branch in a nested loop because:
 1. The global history was not updated after a mispredict squash.
 2. The global history was updated in the fetch stage. The choice predictors
    that were updated  used the changed global history. This is incorrect, as
    it incorporates the state of global history after the branch in
    encountered. Fixed update to choice predictor using the global history
    state before the branch happened.
 3. The global predictor table was also updated using the global history state
    before the branch happened as above.

Additionally, parameters to initialize ctr and history size were reversed.
2011-07-10 12:56:08 -05:00
Geoffrey Blake
c7e7b89058 O3: Fix up pipelining icache accesses in fetch stage to function properly
Fixed up the patch from Yasuko Watanabe that enabled pipelining of fetch accessess to
icache to work with recent changes to main repository.
Also added in ability for fetch stage to delay issuing the fault carrying
nop when a pipeline fetch causes a fault and no fetch bandwidth is available
until the next cycle.
2011-07-10 12:56:08 -05:00
Ali Saidi
f8538f7456 IO: Handle case where ISA Fake device is being used as a fake memory. 2011-07-10 12:56:08 -05:00
Ali Saidi
60579e8d74 O3: Make sure fetch doesn't go off into the weeds during speculation. 2011-07-10 12:56:08 -05:00
Ali Saidi
9751a1d3e7 Config: Add support for a Self.all proxy object 2011-07-10 12:56:08 -05:00
Daniel Johnson
83f91db2cc ARM: Fix mp interrupt bug in GIC.
Missing "!" made multiprocessor interrupts operate incorrectly.
2011-07-10 12:56:08 -05:00
Korey Sewell
678376f0ba alpha:hwrei:rollback for o3
change hwrei back to being a non-control instruction so O3-FS mode will work
add squash in inorder that will catch a hwrei (or any other genric instruction)
that isnt a control inst but changes the PC. Additional testing still needs to be done
for inorder-FS mode but this change will free O3 development back up in the interim
2011-07-07 21:32:49 -04:00
Brad Beckmann
255f82a783 ruby: added generic dma machine 2011-07-06 18:45:15 -07:00
Brad Beckmann
4f83390781 MOESI_hammer: Fixed uniprocessor DMA bug 2011-07-06 18:44:42 -07:00
Nathan Binkert
da1eaaca0e slicc: add a protocol statement and an include statement
All protocols must specify their name
The include statement allows any file to include another file.
2011-07-05 18:30:05 -07:00
Nathan Binkert
831e9b3b7a slicc: cleanup slicc code and make it less verbose 2011-07-05 18:30:05 -07:00
Nathan Binkert
3d252f8e5f grammar: better encapsulation of a grammar and parsing
This makes it possible to use the grammar multiple times and use the multiple
instances concurrently.  This makes implementing an include statement as part
of a grammar possible.
2011-07-05 18:30:04 -07:00
Gabe Black
a4bd05dc37 X86: Add a config for an FS regression on O3. 2011-07-05 17:46:46 -07:00
Gabe Black
87b657278d ISAs: Streamline some spots where Mem is used in the ISA descriptions. 2011-07-05 16:52:57 -07:00
Gabe Black
63a934d152 ISA parser: Define operand types with a ctype directly. 2011-07-05 16:52:15 -07:00
Gabe Black
f16179eb21 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.
2011-07-05 16:48:18 -07:00
Nilay Vaish
9b85b4b19a Merged with Gabe's recent changes. 2011-07-03 11:38:25 -05:00
Nilay Vaish
5e0851d554 Network_test: Conform it with functional access changes in Ruby
Addition of functional access support to Ruby necessitated some changes to
the way coherence protocols are written. I had forgotten to update the
Network_test protocol. This patch makes those updates.
2011-07-03 11:33:46 -05:00
Gabe Black
ec89fffb07 tracediff: Check for --debug-flags now instead of --trace-flags. 2011-07-02 22:52:26 -07:00
Gabe Black
3a1428365a ExecContext: Rename the readBytes/writeBytes functions to readMem and writeMem.
readBytes and writeBytes had the word "bytes" in their names because they
accessed blobs of bytes. This distinguished them from the read and write
functions which handled higher level data types. Because those functions don't
exist any more, this change renames readBytes and writeBytes to more general
names, readMem and writeMem, which reflect the fact that they are how you read
and write memory. This also makes their names more consistent with the
register reading/writing functions, although those are still read and set for
some reason.
2011-07-02 22:35:04 -07:00
Gabe Black
2e7426664a ExecContext: Get rid of the now unused read/write templated functions. 2011-07-02 22:34:58 -07:00
Gabe Black
aade13769f ISA: Use readBytes/writeBytes for all instruction level memory operations. 2011-07-02 22:34:29 -07:00
Gabe Black
d42e471baa Stats: Update stats for the x86 store fault fix. 2011-07-02 22:31:42 -07:00
Gabe Black
2f72d6a1f4 X86: Fix store microops so they don't drop faults in timing mode.
If a fault was returned by the CPU when a store initiated it's write, the
store instruction would ignore the fault. This change fixes that.
2011-07-02 22:31:22 -07:00
Nilay Vaish
45b411fc5f Ruby: Commit files missing from previous commit
The previous commit on functional access support in Ruby did not have
some of the files required. This patch adds those files to the repository.
2011-07-01 16:29:33 -05:00
Brad Beckmann
12dc51ff0d Regression: Updates regression outputs for Ruby memtest
This patch updates the regression outputs for Ruby memtest. This was
required because of the changes carried out by the addition of functional
access support to Ruby.
2011-06-30 19:57:26 -05:00
Brad Beckmann
0b7b3766af config: removed unnecessary slashes
This patch removes unnecessary slashes from a couple of python scripts.
2011-06-30 19:54:02 -05:00
Brad Beckmann ext:(%2C%20Nilay%20Vaish%20%3Cnilay%40cs.wisc.edu%3E)
c86f849d5a Ruby: Add support for functional accesses
This patch rpovides functional access support in Ruby. Currently only
the M5Port of RubyPort supports functional accesses. The support for
functional through the PioPort will be added as a separate patch.
2011-06-30 19:49:26 -05:00
Nilay Vaish
f4cfd65d29 arch: print next upc correctly
The patch corrects the print statement which prints the current and
the next pc. Instead of the next upc, the next pc was being printed.
2011-06-28 18:27:38 -05:00
Joel Hestness
d50aec8d9a Ruby: remove unused functions in CacheMemory: get/setMemoryValue 2011-06-24 15:47:35 -05:00
Deyaun Guo
5aaddc129e mips: fix nmsub and nmadd definitions
the -/+ signs were flipped for nmsub_s, nmsub_d, and nmadd_d
2011-06-22 23:35:21 -04:00
Gabe Black
efb9f7c2ae X86: Eliminate an unused argument for building store microops. 2011-06-21 19:28:14 -07:00
Korey Sewell
6630d4c64b inorder: sparc: add 02.insttest regression 2011-06-20 22:44:24 -04:00
Korey Sewell
d1e8be9a73 inorder: sparc: add hello world regression
- add InOrderCPU compile option to SPARC
- add hello regression for SPARC
2011-06-20 22:44:22 -04:00
Korey Sewell
08c1a6f41b merge regression updates 2011-06-20 18:58:31 -04:00
Korey Sewell
b5736ba4ef alpha:o3:simple: update simout/err files
A few prior changesets have changed the gem5 output in a way that wont cause
errors but may be confusing for someone trying to debug the regressions. Ones that I caught
were:
- no more "warn: <hash address"
- typo in the ALPHA Prefetch unimplemented warning

Additionaly, the last updated stats changes rearrange the ordering of the stats output even though
they are still correct stats (gem5 is smart enough to detect this). All the regressions pass
w/the same stats even though it looks like they are being changed.
2011-06-20 18:57:14 -04:00
Korey Sewell
9124f46587 inorder: alpha-hello regression update 2011-06-20 12:21:10 -04:00
Korey Sewell
773e409a7c inorder: merge gabes compile fix 2011-06-20 08:37:25 -04:00
Gabe Black
affad29932 InOder: Fix a compile error. 2011-06-20 02:29:14 -07:00
Korey Sewell
540d939fad inorder: gem5.opt compile
variable name typo.
2011-06-19 23:26:36 -04:00
Korey Sewell
97449ef3da inorder: update eon regr w/eon info
previous commit copied over O3 stats, this one puts the inorder ones in the right place
2011-06-19 21:54:53 -04:00
Korey Sewell
d16b0dc319 inorder: add 10.linux-boot regression 2011-06-19 21:43:43 -04:00
Korey Sewell
60da569846 inorder: add eon regression 2011-06-19 21:43:43 -04:00
Korey Sewell
55dce6419d inorder: update SE regressions 2011-06-19 21:43:42 -04:00
Korey Sewell
477e7039b3 inorder: clear reg. dep entry after removing from list
this will safeguard future code from trying to remove
from the list twice. That code wouldnt break but would
waste time.
2011-06-19 21:43:42 -04:00
Korey Sewell
b963b339b9 inorder: se: squash after syscalls 2011-06-19 21:43:42 -04:00
Korey Sewell
eedd04e894 inorder: cleanup dprintfs in cache unit 2011-06-19 21:43:42 -04:00
Korey Sewell
078f914e69 inorder: SE mode TLB faults
handle them like we do in FS mode, by blocking the TLB until the fault
is handled by the fault->invoke()
2011-06-19 21:43:42 -04:00
Korey Sewell
3cb23bd3a2 inorder:tracing: fix fault tracing bug 2011-06-19 21:43:42 -04:00
Korey Sewell
fe3a2aa4a3 inorder: se compile fixes 2011-06-19 21:43:42 -04:00