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160 Commits

Author SHA1 Message Date
Ross Thompson
17f80285ca Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-06 22:29:27 -06:00
Ross Thompson
b8dca927f2 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-06 18:39:15 -06:00
Ross Thompson
4b539de184 Renamed signals to be consistent with textbook. 2023-03-06 18:29:31 -06:00
Ross Thompson
6fc157e628 Renamed PCFSpill to PCSpillF. 2023-03-06 17:50:57 -06:00
Ross Thompson
e831efddaf Renamed InstrFirstHalf to InstrFirstHalfF. 2023-03-06 17:48:57 -06:00
Ross Thompson
82ada79b11 Renamed ebuarbfsm to ebufsmarb to match figures. 2023-03-06 17:47:55 -06:00
David Harris
4fd461e520 Fixed bug about rv64 shifts only using 6 bits of funct7 2023-03-06 13:10:51 -08:00
David Harris
94dd39795e Simplified decoder default to illegal instruction 2023-03-06 11:21:11 -08:00
David Harris
08f1ed8e53 More detailed decoding of load/store/branch/jump 2023-03-06 11:15:48 -08:00
David Harris
a01e0bd318 Improved decoding illegal instructions in controller 2023-03-06 11:02:42 -08:00
David Harris
39c871ee0c Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-03 15:54:42 -08:00
Ross Thompson
7dd8fa16c1 Renamed BTB misprediction to BTA. 2023-03-03 00:18:34 -06:00
Ross Thompson
bdab2c8506 Added divide cycle counter. 2023-03-02 23:59:52 -06:00
Ross Thompson
4b501f6e03 Added the i and d cache cycle counters. 2023-03-02 23:54:56 -06:00
Ross Thompson
b19d51b6a2 Added fence counter. 2023-03-02 23:29:20 -06:00
Ross Thompson
3dbfa96aef Added csr write counter, sfence vma counter, interrupt counter, and exception counter. 2023-03-02 23:21:29 -06:00
Ross Thompson
cf4d8e6bd0 Added store stall to performance counters. 2023-03-02 23:10:54 -06:00
Ross Thompson
e257ec96ac Reordered performance counters and added space for new ones. 2023-03-02 23:04:31 -06:00
David Harris
d51d93a3a8 Refactored Floating point division special case detection to avoid spurious trigger on Y for sqrt) 2023-03-02 20:00:47 -08:00
Ross Thompson
3d1ffac7d7 Cleaned up branch predictor performance counters. 2023-03-01 17:05:42 -06:00
David Harris
c761fb1054 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-03-01 11:18:05 -08:00
David Harris
e78591093e Renamed I/D TLBMissOrDAFault to TLBMissOrUpdateDA for consistency with UpdateDA 2023-03-01 11:18:00 -08:00
Ross Thompson
a61f8bc4cf Set bp to use instruction class prediction by default. 2023-03-01 11:52:42 -06:00
Ross Thompson
e8744684cd Branch predictor cleanup. 
I think Ch 10 is now done except for BTB performance analysis and the section on running benchmarks and collecting data.
 2023-03-01 11:24:24 -06:00
Ross Thompson
08a1153ae9 More btb cleanup. 2023-03-01 10:47:00 -06:00
Ross Thompson
dd2433f7ff Minor fix to btb. 2023-03-01 10:45:40 -06:00
Ross Thompson
2773048bd4 Name cleanup. 2023-02-28 17:48:58 -06:00
Ross Thompson
87013ccaf0 Found the performance bug with the branch predictor btb power saving update. 2023-02-28 15:57:34 -06:00
Ross Thompson
8af61c0cc0 Name changes to reflect diagrams. 2023-02-28 15:37:25 -06:00
Ross Thompson
a823d8d021 Undid the btb update as it reduces performance. 2023-02-28 15:21:56 -06:00
Ross Thompson
3261f31e88 This icpred and btb changes are causing a performance issue. 2023-02-27 20:00:50 -06:00
Ross Thompson
69e8358639 Modified the BTB to save power by not updating when the prediction is unchanged. 2023-02-27 17:37:29 -06:00
Ross Thompson
44361f0a34 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-02-27 09:48:03 -06:00
David Harris
5c8fee127b Added support for ZMMUL 2023-02-27 07:29:53 -08:00
Ross Thompson
a81cc883e9 Signal name changes. 2023-02-27 00:39:19 -06:00
David Harris
0d3d499940 hptw typo fix 2023-02-26 19:38:34 -08:00
Ross Thompson
447f6b1443 Branch predictor cleanup. 2023-02-26 21:28:36 -06:00
David Harris
907fbfec38 Simplified Access fault logic in HPTW 2023-02-26 18:50:37 -08:00
David Harris
d3f5708ded StoreAmo faults are generated instead of load faults on AMO operations 2023-02-26 18:35:10 -08:00
Ross Thompson
3804626166 Create module for instruction class prediction and decoding. 2023-02-26 20:20:30 -06:00
Ross Thompson
86f611577f Merge branch 'main' of https://github.com/openhwgroup/cvw into main 2023-02-26 19:58:24 -06:00
David Harris
d2fd34efe6 Renamed DAPageFault to UpdateDA 2023-02-26 17:51:45 -08:00
David Harris
246deeda82 renamed UpperBitsUnequalPageFault to UpperBitsUnequal 2023-02-26 17:32:34 -08:00
David Harris
099267ffce moved tlb to subdirectory 2023-02-26 17:31:03 -08:00
David Harris
a9e884acc8 Moved TLB into subdirectory of MMU 2023-02-26 17:28:05 -08:00
Ross Thompson
bb276da6eb Merge branch 'main' of https://github.com/openhwgroup/cvw into main 2023-02-26 12:06:06 -06:00
David Harris
2ad62ea31f Removed unneeded TLBFlush from TLBMiss 2023-02-26 10:04:16 -08:00
David Harris
2203c05724 Access faults are geted by ~TLBMiss rather than ~(Translate & ~TLBHit) 2023-02-26 09:58:34 -08:00
David Harris
4579a9d0c2 Renamed HPTW_WRITES_SUPPORTED to SVADU_SUPPORTED 2023-02-26 09:38:32 -08:00
David Harris
e3e5100f8d Renamed DAPageFault to HPTWDAPageFault in hptw to avoid name conflict with DAPageFault from tlbcontrol 2023-02-26 07:12:43 -08:00