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2183 Commits

Author SHA1 Message Date
Ross Thompson
2e9b5f9ae4 Formatting. 2023-01-20 13:13:05 -06:00
Ross Thompson
bcadbd7104 Formatting. 2023-01-20 13:09:42 -06:00
Ross Thompson
ecceea177a Formatting. 2023-01-20 13:05:10 -06:00
Ross Thompson
3d202ed2fd Reformatting cachefsm. 2023-01-20 12:49:55 -06:00
Ross Thompson
d3df8e062e Formatting. 2023-01-20 12:41:57 -06:00
Ross Thompson
1ecf4e4cc9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-20 12:37:12 -06:00
Ross Thompson
74ab386735 More cleanup and formatting. 2023-01-20 12:34:40 -06:00
David Harris
26cb45e240 renamed comparator module 2023-01-20 10:13:47 -08:00
Ross Thompson
340e1797ea More cleanup and formatting. 2023-01-20 12:09:21 -06:00
Ross Thompson
c5169a3e39 Formatting. 2023-01-20 11:51:10 -06:00
Ross Thompson
5b5a615e4a Integrated the missing zifence tests into the regression test. 2023-01-20 10:34:49 -06:00
Ross Thompson
29f45d6203 Imperas found a bug with the Fence.I instruction. 
If a fence.i directly followed a store miss, the d$ would release Stall during the cache line write.
Then transition to ReadHold.  This cause the d$ flush to go high while in ReadHold.  The solution is
to ensure the cache continues to assert Stall while in WriteLine state.

There was a second issue also.  The D$ flush asserted FlushD which flushed the I$ invalidate.
Finally the third issue was CacheEn from the FSM needs to be asserted on an InvalidateCache.
 2023-01-20 10:17:21 -06:00
Ross Thompson
2cca457f14 Imperas found a bug with the Fence.I instruction. 
If a fence.i directly followed a store miss, the d$ would release Stall during the cache line write.
Then transition to ReadHold.  This cause the d$ flush to go high while in ReadHold.  The solution is
to ensure the cache continues to assert Stall while in WriteLine state.

There was a second issue also.  The D$ flush asserted FlushD which flushed the I$ invalidate.
Finally the third issue was CacheEn from the FSM needs to be asserted on an InvalidateCache.
 2023-01-20 09:41:18 -06:00
Ross Thompson
da4eec7e0e Improved comment. 2023-01-19 17:41:57 -06:00
Ross Thompson
117ff8163b ram uses always rather than always_ff due to modelsim issue. 2023-01-19 17:41:15 -06:00
Ross Thompson
23ab178192 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-19 17:28:53 -06:00
Ross Thompson
928e06d4fa Added comment about needed changes in BTB. 2023-01-19 17:28:00 -06:00
David Harris
569a016efa Removed study versions from comparator 2023-01-19 15:13:35 -08:00
David Harris
0488723db9 Moved unused study files to studies directory 2023-01-19 15:13:11 -08:00
David Harris
9df5fdbd89 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-19 14:47:54 -08:00
David Harris
25b607566c RAM declaration cleanup: 2023-01-19 14:47:51 -08:00
Ross Thompson
b027921902 Formatting. 2023-01-19 15:06:37 -06:00
Ross Thompson
ea96c2375f Formatting. 2023-01-19 14:18:46 -06:00
Ross Thompson
e380fd71ff Formatting and name changes. 2023-01-19 14:16:29 -06:00
eroom1966
d9d5b99218 update 2023-01-19 13:29:46 +00:00
Ross Thompson
47fdff6488 Formatting. 2023-01-18 19:26:20 -06:00
Ross Thompson
49daa736b1 Formatting spillsupport. 2023-01-18 19:25:54 -06:00
Ross Thompson
cd2f7c6208 Formatting. 2023-01-18 19:11:30 -06:00
Ross Thompson
7289fa8d44 Reduced complexity of spill logic by ensuring the irom outputs offset instrutions on a spill. 2023-01-18 19:10:34 -06:00
Ross Thompson
026d09b79b More IROM cleanup. 2023-01-18 18:47:02 -06:00
Ross Thompson
19e4d0f7cd Cleanup dtim and irom. 2023-01-18 18:44:30 -06:00
Ross Thompson
997dda11a8 Added comments to decompress.sv. May want to consider additional documentation. 2023-01-18 18:26:51 -06:00
Ross Thompson
fb234d506d Formatted subword* and bytemask. 2023-01-18 18:20:22 -06:00
Ross Thompson
469efa61af Formatting. 2023-01-18 18:17:48 -06:00
Ross Thompson
cbf46f417a Formatting. 2023-01-18 18:16:56 -06:00
Ross Thompson
22eee73a45 Formatting. 2023-01-18 18:16:20 -06:00
Ross Thompson
2048edb7a0 Renamed signals in amoalu. 2023-01-18 18:13:18 -06:00
Ross Thompson
40c0e67930 Formatting. 2023-01-18 18:05:11 -06:00
Ross Thompson
2622f5dfb8 Formatting. 2023-01-18 17:56:47 -06:00
Ross Thompson
a6b14eb9ee Formatting. 2023-01-18 17:49:19 -06:00
Ross Thompson
0b244e289c Formating. 2023-01-18 17:30:08 -06:00
Ross Thompson
affca27ec4 Formatting 2023-01-18 17:14:37 -06:00
Ross Thompson
58a07399a2 Formatting 2023-01-18 17:03:45 -06:00
Ross Thompson
fc5424fa62 Formatting 2023-01-18 16:58:03 -06:00
Ross Thompson
607c64e0ee Formating. 2023-01-18 16:52:46 -06:00
Ross Thompson
c34acab1d7 Formating. 2023-01-18 16:47:40 -06:00
David Harris
915987c524 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-18 13:07:03 -08:00
David Harris
331ef80d0f removed fma directory, improved plic comments 2023-01-18 13:06:54 -08:00
eroom1966
7c0cad148d Partial fix for misaligned LD/ST 2023-01-18 17:11:39 +00:00
eroom1966
2e4e5f9c61 changes made with Ross 2023-01-18 16:46:48 +00:00
sarah-harris
789fc0e493 Minor fixes in datapath.sv and ieu.sv (comments, putting signals in correct grouping) 2023-01-18 07:26:08 -08:00
eroom1966
a5a5b7a408 add im flags for compressed disass 2023-01-18 13:37:28 +00:00
eroom1966
df4419dea2 remove volatile for FFLAGS and FCSR 2023-01-18 13:33:57 +00:00
eroom1966
c18942bd0b refer to correct path 2023-01-18 13:26:07 +00:00
Ross Thompson
a929e53576 More comments added to abhfsm. 2023-01-17 22:58:06 -06:00
Ross Thompson
4bfabc4136 formating ahbinterface. 2023-01-17 22:54:42 -06:00
Ross Thompson
4b47598138 Moved amoalu to lsu. 2023-01-17 22:45:46 -06:00
Ross Thompson
8f4f17a4c8 Added commenets and formating to abhcachefsm and abhcacheinterface. 2023-01-17 22:22:23 -06:00
Ross Thompson
f146a01344 Cleaned up ahbcacheinterface. 2023-01-17 22:13:56 -06:00
Ross Thompson
d6c80d937c Formatting progress. 2023-01-17 22:10:31 -06:00
Ross Thompson
c75a164f46 Added comments to dtim and ahbcacheinterface. 2023-01-17 21:56:55 -06:00
Ross Thompson
97661a023a Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-17 21:54:55 -06:00
Ross Thompson
b30c13a188 Fixed the rvvi CSR write enable not synchronized with a valid instruction in the Writeback stage. 2023-01-17 18:24:46 -06:00
Ross Thompson
aa942feedc Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2023-01-17 15:44:44 -06:00
David Harris
c73bea83cd Clean up warnings from Questa 2023-01-17 13:43:39 -08:00
Ross Thompson
caff6e788c Somehow the imperas files spilled into the main branch. 2023-01-17 15:39:34 -06:00
Ross Thompson
c6e366b86e Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-17 14:50:45 -06:00
David Harris
555fee94fa IEU comment cleanup 2023-01-17 10:51:44 -08:00
David Harris
77766a6dac Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-17 06:47:06 -08:00
David Harris
c8d77d785c IEU signal comment cleanup 2023-01-17 06:47:02 -08:00
sarah-harris
4e9a7a6403 Changing signal name to ImmExtD/E to match figures 
Changing signal name:
ExtImmD/E -> ImmExtD/E

to match figures.
 2023-01-17 06:33:58 -08:00
David Harris
15866cb11d pipelined/src/ieu/ieu.sv 2023-01-17 06:08:26 -08:00
sarah-harris
cb153d74d9 IEU cleanup 
IEU cleanup
 2023-01-17 06:02:26 -08:00
eroom1966
8caa93ce4d refactor all rvvi into single initial block 2023-01-17 13:01:01 +00:00
eroom1966
f4e7e54abe Code refactor and addition of rvvi interface 2023-01-17 12:47:38 +00:00
Ross Thompson
c65becbae5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-16 14:03:05 -06:00
Ross Thompson
7c4eaa1ca6 Found a potential issue with mstatush when XLEN = 64. 2023-01-16 13:57:28 -06:00
Ross Thompson
fabe13bdce Fixed issue with rvvi tracer so it reports call csr changes, not just instrutions which write the CSRs. 2023-01-16 13:35:06 -06:00
David Harris
f93b7cfda7 Removed Imperas tests from regression 2023-01-16 07:01:07 -08:00
David Harris
12e12e464a Makefile and setup cleanup 2023-01-15 20:27:12 -08:00
David Harris
7f68a55b8c Clean up tabs 2023-01-15 18:23:09 -08:00
Ross Thompson
8a0e38fd92 Fixed bug with gshare repair from branch class miss prediction. 2023-01-15 14:39:48 -06:00
David Harris
56dac4be7d cache cleanup 2023-01-14 19:43:29 -08:00
David Harris
08fca1c517 ebu cleanup 2023-01-14 19:29:45 -08:00
David Harris
a6d8511a2e ebu cleanup 2023-01-14 19:19:34 -08:00
David Harris
91afe5522b generic cleanup 2023-01-14 19:02:38 -08:00
David Harris
9c79078be1 generic cleanup 2023-01-14 18:56:46 -08:00
David Harris
93b0286934 mmu cleanup 2023-01-14 18:27:53 -08:00
David Harris
9d51abc2e1 mmu cleanup 2023-01-14 18:20:47 -08:00
David Harris
ee1b4fe221 mmu cleanup 2023-01-14 18:14:38 -08:00
David Harris
7c5548a39c mmu cleanup 2023-01-14 17:49:10 -08:00
David Harris
939bf3f148 mmu cleanup 2023-01-14 17:35:21 -08:00
David Harris
697a8d8f50 uncore cleanup 2023-01-14 17:21:07 -08:00
David Harris
a4c753635e uncore cleanup 2023-01-14 17:09:11 -08:00
David Harris
a2b455d7b5 uncore cleanup 2023-01-14 17:07:36 -08:00
David Harris
f16267ddbc uncore cleanup 2023-01-14 17:00:58 -08:00
David Harris
1ec42b9d50 sdc cleanup 2023-01-14 16:49:44 -08:00
David Harris
3ad4ae352c uncore cleanup 2023-01-14 06:15:35 -08:00
David Harris
0c91505f41 Wallypipeliendcore/soc cleanup 2023-01-14 05:57:50 -08:00
David Harris
10f76dd7e6 csr & wally cleanup 2023-01-13 22:25:19 -08:00
David Harris
efe7e88258 csr cleanup 2023-01-13 22:12:06 -08:00
David Harris
90e7aa2d50 csr cleanup 2023-01-13 21:29:03 -08:00
David Harris
9526479782 csr cleanup 2023-01-13 21:25:55 -08:00
David Harris
c9c174de49 csr cleanup 2023-01-13 21:09:29 -08:00
David Harris
be236d9438 csr cleanup 2023-01-13 21:00:06 -08:00
David Harris
50415a0a12 csr cleanup 2023-01-13 20:55:21 -08:00
David Harris
25d8566694 csr comments 2023-01-13 20:49:34 -08:00
David Harris
543d9d379b trap comments 2023-01-13 19:50:44 -08:00
David Harris
b613722617 trap comments 2023-01-13 19:44:38 -08:00
David Harris
74d3e0aa40 privileged comments 2023-01-13 17:57:38 -08:00
Ross Thompson
4c78bcade8 Possible improvement to gshare. 2023-01-13 18:50:01 -06:00
Ross Thompson
76a9e7d963 Merge branch 'rastemp' 2023-01-13 18:09:50 -06:00
Ross Thompson
886e4e2935 Partial fix to RAS prediction accurracy. 2023-01-13 18:05:47 -06:00
Ross Thompson
4aa2b5737f Signal renames for ras. 2023-01-13 15:56:10 -06:00
Ross Thompson
0e215ac3c6 Removed 1 bit from instruction classification. 2023-01-13 15:19:53 -06:00
Ross Thompson
de7f3b14fc More branch predictor cleanup. 
Found small bug. The decode stage was using the predicted instruction class rather than the decoded instruction class.
 2023-01-13 12:57:18 -06:00
Ross Thompson
cf608ee45f Possible optimization of gshare. 
I don't believe the Writeback stage ghr is needed.
 2023-01-13 12:39:29 -06:00
Ross Thompson
ea7c447218 Possible minor enhancement to gshare. 2023-01-13 12:32:39 -06:00
Ross Thompson
55169fa9b0 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2023-01-13 10:26:07 -06:00
Ross Thompson
395b7a5b32 Nearly complete RVVI tracer. 
Missing PMP registers and performance counters other than MCYCLE and MINSTRET.
 2023-01-12 18:43:39 -06:00
Ross Thompson
ef4c684336 Added supervisor mode registers to tracer. 2023-01-12 17:04:41 -06:00
Ross Thompson
9917be817c Added M CSRs to the CSRArray. 2023-01-12 16:51:51 -06:00
Ross Thompson
a68773eba1 added machine csr to logger. 2023-01-12 16:35:19 -06:00
Ross Thompson
2e622c9860 Added support to print the gprs. 2023-01-12 16:09:30 -06:00
Ross Thompson
4733b787f8 rvvi trace is coming alone nicely. 2023-01-12 14:46:31 -06:00
Ross Thompson
3cc37e3f12 Completely stripped down imperas simulation. 
run with
vsim -c -do "do wally-pipelined-imperas.do rv64gc"
 2023-01-12 12:48:38 -06:00
Ross Thompson
2f2f3d6da5 Stripped out all signature checking. 
Removed multiple tests loop.
Only runs 1 test now.
 2023-01-12 12:45:44 -06:00
Ross Thompson
5ad0bacf5b Created separate imperas testbench. 
Resolved logger issue with the duplicated instructions after commit.
 2023-01-12 12:07:07 -06:00
Ross Thompson
94f24d3f58 Added instruction logger. 2023-01-12 10:09:34 -06:00
David Harris
fdcb1f08ce Privileged unit formatting 2023-01-12 07:41:30 -08:00
David Harris
e58879f2d0 restructured code for lint error related to CORRSHIFTSZ 2023-01-12 07:34:37 -08:00
David Harris
93233fbb45 Restructured negateintres to avoid lint error, but one still shows on shiftcorrection 2023-01-12 07:28:52 -08:00
David Harris
1ad6ac1393 MDU comment cleanup 2023-01-12 07:15:14 -08:00
David Harris
768c1bc703 Header comments 2023-01-12 04:35:44 -08:00
Ross Thompson
b96a53df0a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2023-01-11 23:02:14 -06:00
Katherine Parry
77a982c977 cleaned up all FPU files except for division 2023-01-11 22:02:30 -06:00
David Harris
67d474995e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-11 19:48:37 -08:00
David Harris
bfd47ff7f5 Removed unused wallypipelinedsocwrapper 2023-01-11 19:48:34 -08:00
Ross Thompson
e0867b1840 Completed review of LSU. 2023-01-11 19:06:03 -06:00
Ross Thompson
aba1df9abf Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-11 18:52:49 -06:00
Ross Thompson
318ceba34d Improved LSU formating. 2023-01-11 18:52:46 -06:00
sarah-harris
796a189451 privilege unit -> privileged unit in ifu.sv 
privilege unit -> privileged unit in ifu.sv
 2023-01-11 16:33:08 -08:00
Ross Thompson
ad22a9ea02 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-11 17:26:11 -06:00
sarah-harris
203cc164d9 Added Sarah.Harris@unlv.edu to alu.sv 
Added Sarah.Harris@unlv.edu to alu.sv
 2023-01-11 15:20:41 -08:00
Ross Thompson
b60e9730a7 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-11 17:15:49 -06:00
David Harris
8c6ddcc15b changed name to CORE-V-WALLY 2023-01-11 15:15:08 -08:00
Ross Thompson
bccef3b39c Updated header for LSU. 2023-01-11 17:15:07 -06:00
David Harris
9a057ef5cd Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-11 15:13:58 -08:00
Ross Thompson
a8931e0211 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-11 17:09:23 -06:00
Katherine Parry
4556839960 fixed typo bug in fpu 2023-01-11 17:07:02 -06:00
Ross Thompson
6999b4562e Updated branch predictor. 2023-01-11 17:00:45 -06:00
David Harris
3ea4dd4898 Changed Wally to CORE-V Wally 2023-01-11 14:03:44 -08:00
David Harris
99ff78b902 FPU cleanup 2023-01-11 12:27:00 -08:00
David Harris
4ff2627a50 fpu cleanup 2023-01-11 12:18:06 -08:00
David Harris
d1bfdddd8c Rename FP and FPU to F in signal names 2023-01-11 11:46:36 -08:00
David Harris
15026f61f7 FPU comments 2023-01-11 11:31:28 -08:00
David Harris
654abcde61 Replaced MDUE with IntDivE in FDIVSQRT 2023-01-11 11:06:37 -08:00
Ross Thompson
1df9c5f13e Optimized gshare. 2023-01-10 18:12:48 -06:00
David Harris
f6987fab8c Switched to XZeroE from NumerZeroE in square root preprocessor 2023-01-10 12:37:49 -08:00
David Harris
739c2c8322 Changed MIT license to Solderpad License 2023-01-10 11:35:20 -08:00
David Harris
446b5fa83f Division constant cleanup 2023-01-10 11:14:59 -08:00
David Harris
4a34007b49 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-09 13:04:37 -08:00
David Harris
b2ec52c94d Changed DIVN from NF+3 to NF+2, cleanup 2023-01-09 13:04:34 -08:00
Ross Thompson
f330d877ac Added folded gshare predictor with k=16 and depth=10. 2023-01-09 14:41:03 -06:00
David Harris
48f31d4b24 Divider constant cleanup, made CORRSHIFTSZ consistent 2023-01-09 12:34:19 -08:00
Ross Thompson
302a2e0116 Added better branch predictor to fpga config. 2023-01-09 13:46:30 -06:00
Ross Thompson
ca55bd8444 Fixed branch predictor. 2023-01-09 13:45:49 -06:00
Ross Thompson
6a616617d1 Restored to default configuration. 2023-01-09 00:21:45 -06:00
Ross Thompson
816006ac1b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2023-01-09 00:18:11 -06:00
Ross Thompson
6326e6984c Might have actually solved the gshare bug. 2023-01-09 00:11:25 -06:00
Ross Thompson
6cbce9672d Possibly working speculative global history. 2023-01-08 23:46:53 -06:00
Ross Thompson
0eda4b1ab3 core part of global history works now. forwarding is still broken. 2023-01-08 23:35:02 -06:00
David Harris
d7e420e350 Cache code cleanup 2023-01-07 15:49:18 -08:00
David Harris
dc12291ee3 Cache code cleanup 2023-01-07 15:46:23 -08:00
David Harris
057183bcc9 Cache code cleanup 2023-01-07 15:44:44 -08:00
David Harris
0a25f18a07 Cache code cleanup 2023-01-07 15:42:08 -08:00
David Harris
0ad707f1a5 Cache code cleanup 2023-01-07 15:39:13 -08:00
Ross Thompson
bf08c57ab0 Added branch outcome logger to testbench 2023-01-07 13:16:57 -06:00
Ross Thompson
475becb414 Removed unused rv64BP config. 2023-01-07 12:17:40 -06:00
David Harris
f541a277a8 Remove unused CACHE_ENABLED parameter 2023-01-07 09:57:24 -08:00
David Harris
33c910f952 Remove unused signals 2023-01-07 06:26:29 -08:00
David Harris
dc526c92bd Removed unused signals 2023-01-07 06:06:54 -08:00
David Harris
01525399cc Removed unused signals; added check for atomic in pmachecker 2023-01-07 05:59:56 -08:00
David Harris
21b9f50851 Remove conditional from inside decompress module 2023-01-07 05:51:47 -08:00
David Harris
8506f120e1 Remove unused signals 2023-01-07 05:46:22 -08:00
David Harris
44352ced64 Branch logic simplification and remove unused signals 2023-01-07 05:42:34 -08:00
David Harris
d8f0425467 vclean working; started removing unused signals 2023-01-07 05:34:58 -08:00
David Harris
f4cb652a00 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-07 04:49:40 -08:00
David Harris
2188ff879b code cleanup 2023-01-07 04:49:25 -08:00
Ross Thompson
f119b492bb Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-06 15:18:13 -06:00
Ross Thompson
7223d1e05c Added python script to post process performance counter metrics. 2023-01-06 15:15:54 -06:00
Katherine Parry
1bcb1725f5 renamed alot of signals in fpu 2023-01-06 10:35:23 -06:00
David Harris
c260354817 Removed unused UARCH configuration entries 2023-01-06 05:11:14 -08:00
Ross Thompson
01d4e942d0 Added more missing files. 2023-01-06 00:12:08 -06:00
Ross Thompson
8a5916ce66 Addd missing file. 2023-01-06 00:09:18 -06:00
Ross Thompson
09bb733088 Added code to print out performance counters at end of each test. 2023-01-05 18:00:11 -06:00
Ross Thompson
78e441fb38 More branch predictor cleanup. 2023-01-05 17:19:27 -06:00
Ross Thompson
65dd86b726 Keep around the old gshare. 2023-01-05 15:55:46 -06:00
Ross Thompson
2224679694 Added speculative gshare. 2023-01-05 14:18:00 -06:00
Ross Thompson
9d03109f34 Officially added global history with speculation to types of branch predictors. 2023-01-05 14:04:09 -06:00