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392716a608
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334 Commits

Author SHA1 Message Date
Ross Thompson
392716a608 Updated global history branch predictcor with the gshare improvements. 2023-01-29 16:26:44 -06:00
Ross Thompson
a9a7054e2f Merge branch 'main' of https://github.com/openhwgroup/cvw 
This merges the branch predictor improvements into the main repo.
 2023-01-29 15:24:20 -06:00
Ross Thompson
d6ae1156d0 gshare cleanup. 2023-01-29 15:07:45 -06:00
Ross Thompson
ef874f3409 Gshare cleanup. 2023-01-29 15:06:35 -06:00
Ross Thompson
74b4f78099 Found bug in gshare. 2023-01-29 15:03:25 -06:00
Ross Thompson
1044c290c2 Fixed bug with the btb's valid bit not beind held on a stall. 2023-01-29 00:49:23 -06:00
Ross Thompson
f93eaeef8e Fixed another bug with the speculative gshare with instruction class prediction. 2023-01-29 00:33:40 -06:00
David Harris
481cb8bad0 Renamed BPTYPE to BPRED_TYPE 2023-01-28 20:06:12 -08:00
David Harris
94daedeed6 Renamed DCACHE to DCACHE_SUPPORTED and ICACHE to ICACHE_SUPPORTED 2023-01-28 18:52:00 -08:00
David Harris
e4e7e827d6 Renamed BUS to BUS_SUPPORTED 2023-01-28 18:35:53 -08:00
David Harris
a0b4e7fb24 Config cleanup and renamed BPRED_ENABLED to BPRED_SUPPORTED 2023-01-28 18:17:42 -08:00
Ross Thompson
6371d91b37 Added another performance counter to track overall branch miss-predictions. 2023-01-28 17:50:46 -06:00
Ross Thompson
57deb68fb3 Found an issue where the btb was not forwarding the valid bit! 2023-01-28 17:00:50 -06:00
Ross Thompson
6d9c463893 Possible workign instruction class prediction repair. 2023-01-28 16:42:19 -06:00
Ross Thompson
8a277f6b75 Possible fix for speculative gshare. 2023-01-28 16:14:19 -06:00
Ross Thompson
6d75e3c22b Clarified gshare bp. 2023-01-27 16:40:20 -06:00
David Harris
3906e706fd Removed integer from localparams 2023-01-27 14:40:06 -08:00
David Harris
5a81a26c9e Removed int/integer from parameters) 2023-01-27 14:27:04 -08:00
Ross Thompson
857004c3a3 Removed pessimistic x propagation issue for wally32priv test in the branch predictor. 2023-01-27 15:28:31 -06:00
Ross Thompson
c1ae7c068e Found issue with branch predictor. 2023-01-27 13:13:55 -06:00
Ross Thompson
a212960352 Very hacky. But I think gshare is now correct with respect to repair on instruction class miss prediction. 2023-01-27 11:34:45 -06:00
David Harris
767cfdc8a5 Fixed typo in bpred preventing compiling 2023-01-27 05:55:53 -08:00
David Harris
c2139eba93 renamed brpred to bpred 2023-01-27 05:55:31 -08:00
David Harris
947713f1f3 Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-01-26 14:52:25 -08:00
Ross Thompson
4fa2dcc2a5 Changed the performance counters to track different data. 
Now rather than tracking jump(r) we track jump(r) and taken branches.
 2023-01-26 13:21:28 -06:00
Ross Thompson
6025bbc9ae Fixed another bug with the compressed instruction class decode. 2023-01-26 12:19:33 -06:00
Ross Thompson
a8d5ba1ea4 Fixed compressed branch class decode. 2023-01-26 11:07:47 -06:00
Ross Thompson
3577220625 Improved no class prediction mode. 2023-01-26 10:54:43 -06:00
Ross Thompson
19a964325a Modified the RAS to correctly repair itself. 2023-01-25 23:33:03 -06:00
Ross Thompson
3dc441ff8c Intermediate commit. Passes regression tests, but RAS is not correct. 2023-01-25 19:39:18 -06:00
Ross Thompson
63617b56cf Fixed typos. 2023-01-25 18:51:09 -06:00
Ross Thompson
3b4d49a358 RAS is now compliant with our header and documentation guide. 2023-01-25 17:18:07 -06:00
Ross Thompson
5da1aeeef1 Improved RAS again. 2023-01-25 17:10:52 -06:00
Ross Thompson
2f0e40402b Improved RAS. 2023-01-25 17:06:25 -06:00
Ross Thompson
724ae13cc2 More branch predictor improvements. 2023-01-25 16:03:02 -06:00
Ross Thompson
fd1f7d4d34 Cleaned up branch predictor. 2023-01-25 15:29:55 -06:00
Ross Thompson
56a24d02e8 Fixed subtle bug in btb. 2023-01-25 15:16:53 -06:00
Ross Thompson
16142eca59 Added logic to forward btb prediction results. 2023-01-25 13:02:20 -06:00
Ross Thompson
4550966678 More btb cleanup. 2023-01-25 12:14:18 -06:00
Ross Thompson
40b4811d2b Found minor bug in gshare. 2023-01-25 12:08:54 -06:00
Ross Thompson
afdcfeb93b BTB cleanup. 2023-01-25 12:05:13 -06:00
Ross Thompson
7e1363bfad Optomized gshare. 2023-01-25 11:41:16 -06:00
Ross Thompson
ad6f7041b4 Fixed wrong header on optgshare.sv. Somehow it still had the old MIT license. 
Renamed ram2p1rwbefix.sv to ram2p1rwbe.sv
 2023-01-25 10:14:30 -06:00
Ross Thompson
56369f7641 Removed old versions of gshare. 2023-01-24 17:26:54 -06:00
Ross Thompson
1acbdaeca6 Removed the old two port ram and replaced it with the fixed version. 
The fixed version is renamed to ram2p1r1wb.sv
 2023-01-24 17:25:16 -06:00
Ross Thompson
1170dc7250 Moved and ranamed btb to btb.sv 
Fixed btb to use the fixed port 2 sram.
 2023-01-24 17:19:51 -06:00
Ross Thompson
7d1109fc24 Partial BTB cleanup. 2023-01-24 16:12:35 -06:00
Ross Thompson
2157970adf Moved branch predictor files into separate sub-directory. 2023-01-24 16:00:27 -06:00
David Harris
f28b0e5c1a bpred input spacing cleanup 2023-01-24 06:14:31 -08:00
David Harris
5233117568 bpred tab cleanup 2023-01-24 05:42:34 -08:00