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542 Commits

Author SHA1 Message Date
Sydeny
a0ecd83c47 Merge branch 'main' of https://github.com/openhwgroup/cvw into main 2023-04-03 13:41:55 -07:00
Ross Thompson
91e4e64f3d Merge pull request #178 from AlecVercruysse/coverage 
Improve I$ coverage by simplifying logic
 2023-04-03 14:22:46 -05:00
David Harris
4e2d80476e Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-04-03 06:13:16 -07:00
Sydeny
981e5bd5f6 Manual merge for fctrl.sv, fpu.S, and ifu.S files 2023-04-03 01:55:23 -07:00
Sydeny
17d41b4d52 Merge branch 'main' of https://github.com/openhwgroup/cvw into main 2023-04-03 01:54:27 -07:00
Sydney Riley
55655157ae expanded ifu coverage including 4 added directed tests and 1 exclusion, expanded fpu coverage including 6 directed tests and 2 multiline exclusions. 2023-04-02 23:51:34 -07:00
Kevin Kim
b38d34b925 Merge branch 'bitmanip_cleanup' of https://github.com/kipmacsaigoren/cvw into bitmanip_cleanup 2023-04-02 21:14:35 -07:00
Kevin Kim
8252706691 removed comparator flag to ALU 2023-04-02 21:14:31 -07:00
Kevin Kim
238e97d379 signal renaming on bitmanip alu and alu 2023-04-02 18:42:41 -07:00
Kevin Kim
f175f7e927 changed signal names on clmul and zbc to match book 2023-04-02 18:28:09 -07:00
David Harris
db542543cb Coverage improvement: ieu, hazard, priv 2023-03-31 08:34:34 -07:00
David Harris
fd0c9e973d Coverage improvements in ieu, hazard units 2023-03-31 08:33:46 -07:00
Marcus Mellor
fd08ff2e60 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-31 10:29:10 -05:00
Mike Thompson
9abfef7c39 Merge pull request #179 from davidharrishmc/dev 
Fixed broken regression: privileged tests and build root
 2023-03-31 10:56:27 -04:00
Marcus Mellor
219176db9b Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-31 09:54:02 -05:00
Marcus Mellor
09b2cd304f Address comments in openhwgroup/cvw#180 2023-03-31 09:51:33 -05:00
Kevin Kim
2c6359b097 only pass in relevant comparator flag to ALU 2023-03-30 19:15:33 -07:00
Kevin Kim
1e88ec7eac Merge branch 'bitmanip_cleanup' of https://github.com/kipmacsaigoren/cvw into bitmanip_cleanup 2023-03-30 19:04:41 -07:00
Kevin Kim
27a5c9c5d6 Merge branch 'openhwgroup:main' into bitmanip_cleanup 2023-03-30 19:04:36 -07:00
Marcus Mellor
3afd963a9e Disable coverage for branches tested in fpu.s 2023-03-30 19:44:55 -05:00
David Harris
da53f240d3 Refactored InstrValidNotFlushed into CSR Write signals 2023-03-30 17:06:09 -07:00
David Harris
406bb22b6a Started factoring out InstrValidNotFlushed from CSRs 2023-03-30 14:56:19 -07:00
David Harris
f34218666a fctrl updated and buildroot working again 2023-03-30 13:17:15 -07:00
David Harris
9129c3ac22 fctrl continued cleanup 2023-03-30 13:07:39 -07:00
David Harris
01c5d58a64 fctrl continued cleanup 2023-03-30 13:05:56 -07:00
David Harris
b2a102ce79 Started to clean up fctrl 2023-03-30 12:57:14 -07:00
Alec Vercruysse
4b58bb55f2 Make entire cache write path conditional on READ_ONLY_CACHE 2023-03-30 10:32:40 -07:00
Kip Macsai-Goren
3805cf993a unnecessary comments cleanup 2023-03-29 19:32:57 -07:00
Kip Macsai-Goren
491ef14b71 Resolved ImperasDV receiving incorrect cause values 2023-03-29 15:04:56 -07:00
Alec Vercruysse
d507f85190 icache coverage improvements by simplifying logic 2023-03-29 13:04:00 -07:00
David Harris
9d8f9e4428 Reduced number of bits in mcause and medeleg registers 2023-03-29 07:02:09 -07:00
David Harris
59f825a54b Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-29 06:19:10 -07:00
David Harris
f2c24b869d Simplified fctrl 2023-03-28 21:13:48 -07:00
Alec Vercruysse
46df428e56 add check for legal funct3 for IW instructions 2023-03-28 15:59:48 -07:00
David Harris
92a7e86942 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:33:18 -07:00
Ross Thompson
d0f8db7939 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-28 16:31:50 -05:00
David Harris
6849eeae0c Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-28 14:27:08 -07:00
Ross Thompson
366a96a0fc Possible fix for issue 148. 
I found the problem. We use a Committed(F/M) signal to indicate the IFU or LSU has an ongoing cache or bus transaction and should not be interrupted. At the time of the mret, the IFU is fetching uncacheable invalid instructions asserting CommittedF. As the IFU finishes the request it unstalls the pipeline but continues to assert CommittedF. (This is not necessary for the IFU). In the same cycle the LSU d cache misses. Because CommittedF is blocking the interrupt the d cache submits a cache line fetch to the EBU.

I am thinking out loud here. At it's core the Committed(F/M) ensure memory operations are atomic and caches don't get into inconsistent states. Once the memory operation is completed the LSU/IFU removes the stall but continues to hold Committed(F/M) because the memory operation has completed and it would be wrong to allow an interrupt to occur with a completed load/store. However this is not true of the IFU. If we lower CommittedF once the operation is complete then this problem is solved. The interrupt won't be masked and the LSU will flush the d cache miss.

This requires a minor change in the cachebusfsm and cachefsm. I will report back after I've confirmed this works.
 2023-03-28 14:47:08 -05:00
Kevin Kim
582c561cb1 comment formatting 2023-03-28 11:40:19 -07:00
Kevin Kim
926f3d2a5a Merge branch 'openhwgroup:main' into bitmanip_cleanup 2023-03-28 11:31:18 -07:00
David Harris
64bf9510ad Added support (untested) for half and quad conversions 2023-03-28 10:53:06 -07:00
David Harris
36a0d35ae5 fixed fp->fp conversions 2023-03-28 10:35:41 -07:00
David Harris
4e50cc3379 support more fp -> fp conversions 2023-03-28 10:28:01 -07:00
David Harris
074fd1d9c3 Fixed fmv decoder 2023-03-28 10:21:33 -07:00
Ross Thompson
e49cf8a028 Merge pull request #169 from davidharrishmc/dev 
PMP Fix to issue 132
 2023-03-28 11:49:00 -05:00
David Harris
2e5c50e24a Fixed RV32 tests after PMP fix 2023-03-28 08:35:23 -07:00
David Harris
e8904411ce Fixed PMP issue 132. Updated tests to initialize PMP before using. Needs to remake tests 2023-03-28 06:58:17 -07:00
David Harris
2e238c15aa CSRS privileged coverage test 2023-03-28 04:37:56 -07:00
Ross Thompson
d91188c86e Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-27 11:55:19 -05:00
David Harris
9b7e5cec1f Removed unnecessary monitor 2023-03-27 09:52:38 -07:00
Ross Thompson
d9691c1542 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-27 10:22:48 -05:00
Lee Moore
4bb7dadc00 Merge branch 'openhwgroup:main' into add-linux 2023-03-27 09:44:13 +01:00
Kevin Kim
5d3260de63 removed unnecessary signal indices 2023-03-26 20:06:55 -07:00
Kevin Kim
f6ce03730a removed unneccesary input signal from zbb 2023-03-26 19:39:49 -07:00
Ross Thompson
ca4b058373 Modified plic and uart to remove async reset. This removes vivado critical warning. 2023-03-24 20:37:48 -05:00
Ross Thompson
0afba56927 Updated GPIO signal names to reflect book. 2023-03-24 18:55:43 -05:00
Ross Thompson
af8f1fd036 Renamed controllerinputstage to controllerinput to match book. 2023-03-24 17:57:02 -05:00
David Harris
0b0d954e7f Merged ross's spacing fixes 2023-03-24 15:47:26 -07:00
David Harris
092d34373f Merge pull request #159 from ross144/main 
Renamed signal to match book
 2023-03-24 15:34:59 -07:00
Ross Thompson
46b1bca4fc Fixed all tap/space issue in RTL. 2023-03-24 17:32:25 -05:00
Ross Thompson
b5a58502d0 Replaced tabs -> spaces cache. 2023-03-24 15:15:38 -05:00
Ross Thompson
b518177a45 Updated EBU to replace tabs with spaces. 2023-03-24 15:01:38 -05:00
Kevin Kim
b70ab0fa5a Zero/Sign extend mux in Shifter, Zero extend mux in Bitmanip alu 2023-03-24 11:52:51 -07:00
David Harris
4b9b20bce0 Shifter capitalization 2023-03-24 09:01:07 -07:00
Ross Thompson
47f8e847f0 Renamed ebu signal. 2023-03-24 10:51:04 -05:00
David Harris
89954df49b Query about CondExtA 2023-03-24 08:35:33 -07:00
David Harris
21424d0f86 Shifter sign simplification and capitalization 2023-03-24 08:27:30 -07:00
David Harris
cb261731f2 FPU detect illegal instructions 2023-03-24 08:12:32 -07:00
David Harris
f1e87c5e69 Start of EBU coverage tests 2023-03-24 08:12:02 -07:00
David Harris
576545e328 ALUControl Elimination 2023-03-24 08:10:48 -07:00
David Harris
f648be8ee2 Merged ALUOp into ALUControl to simplify ALU mux 2023-03-24 07:28:42 -07:00
David Harris
89479391ca Simplified rotate source to shifter 2023-03-24 06:49:26 -07:00
David Harris
e8d6073eca BMU simplifications 2023-03-24 06:18:06 -07:00
David Harris
3bdb176253 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-24 05:59:48 -07:00
Kevin Kim
4c73f0fffd minor formatting 2023-03-23 22:28:21 -07:00
Kevin Kim
5a19934511 comments 2023-03-23 22:22:25 -07:00
Kevin Kim
ae162a2694 removed redundant signals 
-fixed some comments too
 2023-03-23 22:20:37 -07:00
Kevin Kim
9c457e3af4 bitmanip alu submodule passes lint and regression 2023-03-23 21:56:03 -07:00
Kevin Kim
443e64bef2 more progress. Failing regression 2023-03-23 20:42:49 -07:00
Kevin Kim
2a2aa0470a Merge branch 'openhwgroup:main' into bitmanip-alu 2023-03-23 19:53:50 -07:00
David Harris
c8ea5afe25 Removed unnecessary XZero from fdivsqrt 2023-03-23 17:25:59 -07:00
David Harris
f2864c7305 Merged BMU 2023-03-23 17:24:40 -07:00
Kevin Kim
8e67c64e2c fixed rori rv32 bug 2023-03-23 16:06:46 -07:00
Kevin Kim
51d691215f more progress on bitmanip alu modularization 2023-03-23 16:02:38 -07:00
David Harris
4e1bf6fbe0 Improved IEU and bitmanip test coverage 2023-03-23 14:24:41 -07:00
Kevin Kim
519a0452a5 started bitmanip alu modularization 2023-03-23 14:02:28 -07:00
David Harris
121d1cea62 Added csrwrites.S test case for privileged tests 2023-03-23 10:55:32 -07:00
Kevin Kim
a084b8ca31 Merge branch 'bit-manip' of https://github.com/kipmacsaigoren/cvw into bit-manip 2023-03-22 10:34:19 -07:00
Kevin Kim
fd00e386b5 remove outdated 2023-03-22 10:34:17 -07:00
Kevin Kim
1eb96e2221 Merge branch 'openhwgroup:main' into bit-manip 2023-03-22 10:33:15 -07:00
Kevin Kim
efa9f09864 updated header comments to indicate chapter 15 2023-03-22 10:31:21 -07:00
Kevin Kim
f7a915a71a remove helper python script 2023-03-22 10:27:59 -07:00
Kevin Kim
fce62fc213 formatting 2023-03-22 10:26:04 -07:00
Kevin Kim
e9f90050d5 min/max mux optimize 2023-03-22 10:25:54 -07:00
Kevin Kim
c8a5514ca5 formatting 2023-03-22 10:14:12 -07:00
eroom1966
259fbc8d77 support linux 2023-03-22 17:10:32 +00:00
David Harris
e03a533775 Select original compressed or uncompressed instruction for MTVAL on illegal instruction fault 2023-03-22 06:29:30 -07:00
David Harris
80fc851332 Fix Issue #142: SCOUNTEREN powers up at 1 instead of 0 2023-03-22 04:41:57 -07:00
David Harris
a1eccf37dc Fix Issue 145 2023-03-22 04:33:14 -07:00
Kevin Kim
3f46dff23e Merge branch 'main' of https://github.com/openhwgroup/cvw into bit-manip 2023-03-21 11:20:05 -07:00
David Harris
df9ce03252 Renamed intdivrestoring to div 2023-03-21 05:51:02 -07:00
David Harris
718844012e Renamed intdivrestoring to div 2023-03-20 16:22:06 -07:00
Kevin Kim
72a8b25272 formatting 2023-03-20 14:25:05 -07:00
Kevin Kim
2ad807728c more structural mux changes 2023-03-20 14:23:54 -07:00
Kevin Kim
4ecfa1bad3 added bitmanip 64 tests to updated regression script 
+ alu structural mux changes
 2023-03-20 14:19:39 -07:00
Kevin Kim
5056eb404c formatting 2023-03-20 13:09:49 -07:00
Kevin Kim
82d52f892b Merge branch 'main' of https://github.com/openhwgroup/cvw into bit-manip 2023-03-20 13:06:10 -07:00
David Harris
18737b58df formatting cleanup 2023-03-20 12:45:10 -07:00
Kevin Kim
b394e343f6 format + min/max structural mux 2023-03-20 09:37:57 -07:00
David Harris
cd0240d938 Eliminate transitions to FLUSH and WRITEBACK in cachefsm for READ_ONLY_CACHE 2023-03-19 10:41:47 -07:00
David Harris
4c6f539449 Removed flq from LLEN=64 2023-03-19 10:25:04 -07:00
David Harris
ff22520d9e Added comments about PMP checker fixes when test cases will be ready to initialize PMP before entering user mode 2023-03-19 05:46:34 -07:00
David Harris
4cde207958 Fix Issue #120 about SIE/SIP being 0 unless MIDELEG bits are set. However, this fix breaks the wally32/64priv tests in regression. 2023-03-18 10:10:58 -07:00
David Harris
f53b2f6e1f Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-18 09:24:37 -07:00
David Harris
6922298f21 Replaced FenceM with InvalidateICacheM for event counting of fence.i 2023-03-18 09:24:31 -07:00
Ross Thompson
3d37d2769a Book updates. 2023-03-14 13:09:50 -05:00
Ross Thompson
3cae6ca90f Updated NextAdr to NextSet. 2023-03-13 14:54:13 -05:00
Ross Thompson
c190444fa2 Updated CAdr to CacheSet. 2023-03-13 14:53:00 -05:00
Ross Thompson
ada099c58b Changes BTA to BPBTA. 2023-03-12 14:36:46 -05:00
Ross Thompson
a5523400ae Replaced DCACHE parameter with READ_ONLY_CACHE as the name was confusing in chapter 10. 2023-03-12 13:21:22 -05:00
Kevin Kim
0d0d3b981e more checks in bitmanip decode 2023-03-10 17:17:24 -08:00
Kevin Kim
9b4f3219db formatting 2023-03-10 14:32:01 -08:00
Kevin Kim
c380b0816d removed redundant convinvb signal 2023-03-10 14:18:24 -08:00
Kevin Kim
dcaf9de228 removed redundant condinvb mux 2023-03-10 14:17:38 -08:00
David Harris
f411803bc4 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-10 12:47:30 -08:00
David Harris
33fa7e4706 Simplified SLT and SLTU code in ALU 2023-03-09 15:14:52 -08:00
Kevin Kim
f29e8932a2 more comprehensive illegal b instr. check 2023-03-09 12:44:51 -08:00
Kevin Kim
f335d08bbf fixed bmu bug 
- accidentally deleted count instruction decode
 2023-03-09 12:35:42 -08:00
Ross Thompson
68b437ce92 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-09 13:29:38 -06:00
Kevin Kim
260dcc8b96 Merge branch 'bit-manip' of https://github.com/kipmacsaigoren/cvw into bit-manip 2023-03-08 16:22:47 -08:00
Kevin Kim
7002221dec cleaner bmu decode logic 2023-03-08 16:22:43 -08:00
Ross Thompson
4db17cde2f Updated testbench to record coremark performance counters. 
Added comment about mtval probably not being correct for compressed instructions.
 2023-03-08 17:11:27 -06:00
kipmacsaigoren
2337e2ae16 Merge branch 'openhwgroup:main' into bit-manip 2023-03-07 21:29:03 -08:00
David Harris
88c3a61cd7 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-07 14:49:23 -08:00
Kevin Kim
0ca530fffd Merge branch 'bit-manip' into illegal_specific 2023-03-07 14:07:59 -08:00
Kevin Kim
f29bbe5f69 Merge branch 'openhwgroup:main' into illegal_specific 2023-03-07 14:06:22 -08:00
Kevin Kim
4bb43892f9 alu formatting 2023-03-07 14:01:47 -08:00
Kevin Kim
26cb1857f3 specifc instruction handling for B's 
- Added BALUSrcBD, BaseALUSrcB for distinguishing between base instruction I/IW and Bitmanip instruction I/IW
 2023-03-07 13:58:08 -08:00
kipmacsaigoren
24f0f34aff Merge branch 'openhwgroup:main' into priv-tests 2023-03-07 13:46:55 -08:00
Kip Macsai-Goren
f28a284e5e Merge remote-tracking branch 'upstream/main' into bit-manip 2023-03-07 13:45:04 -08:00
Kip Macsai-Goren
2ec3c741ef Merge branch 'bit-manip' of github.com:kipmacsaigoren/cvw into bit-manip 2023-03-07 13:44:51 -08:00
Kip Macsai-Goren
f178c90c02 Merge branch 'main' of github.com:kipmacsaigoren/cvw into bit-manip 2023-03-07 13:44:19 -08:00
Kevin Kim
bd9b9970f5 Merge remote-tracking branch 'origin' into illegal_specific 2023-03-07 11:30:36 -08:00
Kevin Kim
6d146a7e20 formatting 2023-03-07 10:57:52 -08:00
Kevin Kim
833e7bd2af shifter sign generation logic optimize 2023-03-07 10:57:06 -08:00
David Harris
77ba71be71 editorconfig to specify tabs/spaces. Fixed some tabs. Turn off coverage to speed up simulation 2023-03-07 06:31:40 -08:00
Kevin Kim
81198ce6f6 reverted backing to working version 2023-03-07 00:29:58 -08:00
Kevin Kim
5637897dce reverted to working version 2023-03-07 00:28:07 -08:00
Ross Thompson
6d4e28fdf2 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-06 22:29:27 -06:00
Ross Thompson
e448cd54ef Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-06 18:39:15 -06:00