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887 Commits

Author SHA1 Message Date
James E. Stine
a71b97e878 Cosmetic changes on integer divider 2021-05-31 09:16:30 -04:00
James E. Stine
2f365a9e07 Add enhancements to integer divider including: 
- better comments
  - optimize FSM to end earlier
  - passes for 32-bit or 64-bit depending on parameter to intdiv

Left div.bak in just in case have to revert back to original for now.
 2021-05-31 09:12:21 -04:00
James E. Stine
889b935630 Modify elements of generics for LZD and shifter wrote for integer 
divider.
 2021-05-31 08:36:19 -04:00
bbracker
a45b61ede9 turns out I should not have tried renaming FStallD to FPUStallD because that name was already used! All the same it does feel weird to have two such signals floating around \(ah pun!\) 2021-05-28 23:11:37 -04:00
Kip Macsai-Goren
529226ac8d made priority encoder parameterizable 2021-05-28 18:09:28 -04:00
Ross Thompson
40bdcda32d It's a bit sloppy, but the global history predictor is working correctly now. 
There were two major bugs with the predictor.
First the update mechanism was completely wrong.  The PHT is updated with the GHR that was used to lookup the prediction.  PHT[GHR] = Sat2(PHT[GHR], branch outcome).
Second the GHR needs to be updated speculatively as the branch is predicted.  This is important so that back to back branches' GHRs are not the same.  The must be different to avoid aliasing.  Speculation of the GHR update allows them to be different.  On mis prediction the GHR must be reverted.
This implementation is a bit sloppy with names and now the GHR recovery is performed.  Updates to follow.
 2021-05-27 23:06:28 -05:00
Katherine Parry
0646e08609 classify unit created and passes imperas tests 2021-05-27 18:53:55 -04:00
Katherine Parry
65eca433b6 All compare instructions pass imperas tests 2021-05-27 15:23:28 -04:00
Katherine Parry
bd05de0dbb FADD and FSUB imperas tests pass 2021-05-26 12:33:33 -04:00
James E. Stine
e3b3321f91 delete old file for FPregfile 2021-05-26 09:13:09 -05:00
James E. Stine
cc2a7ced7f Add regression test for fpadd 2021-05-26 09:12:37 -05:00
Katherine Parry
3869a73a9c renamed top level FPU wires 2021-05-25 20:04:34 -04:00
Kip Macsai-Goren
32923cb250 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-25 15:28:19 -04:00
Ross Thompson
735e511073 fixed bug with icache miss spill fsm branch. 2021-05-25 14:26:22 -05:00
James E. Stine
e32e812f6a Update FPregfile to use more compact code and better structure for ease in reading 2021-05-25 13:21:59 -05:00
Ross Thompson
aa9a81b760 Merge remote-tracking branch 'refs/remotes/origin/main' into main 2021-05-24 23:25:36 -05:00
Ross Thompson
13034c7406 Fixed bug in the two bit sat counter branch predictor. The SRAM needs to be read enabled by StallF. 2021-05-24 23:24:54 -05:00
Kip Macsai-Goren
ba134eb166 partially complete MSTATUS test of sd, xs, fs, mie, mpp, mpie, sie, spie bitfields 2021-05-24 20:59:26 -04:00
James E. Stine
bbc1dfb309 Minor cosmetic elements on div.sv 2021-05-24 19:30:28 -05:00
James E. Stine
1704fdc877 Mod for DIV/REM instruction and update to div.sv unit 2021-05-24 19:29:13 -05:00
bbracker
82a6ee4c0e slightly more path independence for using verilator 2021-05-24 18:11:56 -04:00
Ross Thompson
3c5e87d6c2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-24 14:28:41 -05:00
Katherine Parry
03aea055fa FMV.X.D imperas test passes 2021-05-24 14:44:30 -04:00
Ross Thompson
dd26b754eb Fixed minor bug in instruction class decoding. 2021-05-24 13:41:14 -05:00
Ross Thompson
b06fda88ff Fixed bug with instruction classification. The class decoder was incorretly labeling jalr acting as both jalr and jr (no link). 2021-05-24 12:37:16 -05:00
Ross Thompson
daf344f1ba Updated branch predictor tests/benchmarks. 2021-05-24 11:13:33 -05:00
James E. Stine
194c32defa Update header for FPadd 2021-05-24 08:28:16 -05:00
Katherine Parry
55f22979ca FSD and FLD imperas tests pass 2021-05-23 18:33:14 -04:00
bbracker
142b02b30a improved PLIC test organization 2021-05-21 15:13:02 -04:00
James E. Stine
49a4097d97 Minor testbench updates to rv64icfd 2021-05-21 09:41:21 -05:00
James E. Stine
47487a625f Update to testbench-imperase for rv64icfd 2021-05-21 09:28:44 -05:00
James E. Stine
694e21541b Update to FLD/FSD testbench 2021-05-21 09:26:55 -05:00
James E. Stine
474d479280 Update to rv64icfd wally-config to run through FP tests 2021-05-21 09:22:17 -05:00
Katherine Parry
67a41748ba FMV.D.X imperas test passes 2021-05-20 22:18:33 -04:00
Katherine Parry
71e4a10efb FMV.D.X imperas test passes 2021-05-20 22:17:59 -04:00
bbracker
114bba8370 small bit of busybear debug progress 2021-05-19 20:18:00 -04:00
bbracker
8554f2f3cd plic implementation optimizations 2021-05-19 18:10:48 +00:00
bbracker
fd4fae0406 commented out MSTATUS test 2021-05-19 12:38:01 -04:00
James E. Stine
058b265d18 Update rv64icfd batch script 2021-05-18 16:01:53 -05:00
James E. Stine
f407bee5ae Mod to config to properly add FP stuff - for icfd test. Should not change regression test through Imperas as just mod to testbench (add tests64d/tests64f but remove from MISA) 2021-05-18 13:48:44 -05:00
bbracker
18ab9015f9 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-18 14:33:40 -04:00
bbracker
f43ea946aa changed lint script to use absolute path for verilator because cron jobs stink at using paths 2021-05-18 14:33:22 -04:00
David Harris
7dcc53dcf5 fixed rv64mmu makefile 2021-05-18 14:25:55 -04:00
David Harris
5f214d60b6 Removed rv64wally 2021-05-18 14:08:46 -04:00
David Harris
433ea61d9e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 
Conflicts:
	wally-pipelined/regression/vish_stacktrace.vstf
 2021-05-18 14:01:19 -04:00
Katherine Parry
409438bc95 floating point infinite loop removed from imperas tests 2021-05-18 10:42:51 -04:00
bbracker
86d55cd07a fixed busybear floating point NOP-out feature; restored regression to check 100000 instructions 2021-05-17 19:25:54 -04:00
bbracker
69ef758e78 regression modified to timeout after 10 min \n took Harris\' suggestion for avoiding using ahbliteState package in busybear testbench 2021-05-17 18:44:47 -04:00
David Harris
1aa1908994 Deleted vish_stacktrace 2021-05-17 18:39:01 -04:00
James E. Stine
49cc330bd9 Forgot initialization config for div - apologies 2021-05-17 17:12:27 -05:00
Elizabeth Hedenberg
853c9243c1 commit ehedenberg coremark 2021-05-17 18:02:35 -04:00
James E. Stine
96eca3287f Add 32/64-bit shifter for update to shifter block 2021-05-17 17:02:13 -05:00
James E. Stine
8822bdd6ad Cleanup of regression 2021-05-17 16:58:15 -05:00
James E. Stine
41da78e0b6 Mod Imperas Testbench for updated Div/Rem 2021-05-17 16:56:30 -05:00
James E. Stine
97cbdae674 Updates on Divide - pushed in working version of DIV64U for Divide and REmainder. Will do 32-bit version tomorrow as well as Signed version 2021-05-17 16:48:51 -05:00
Thomas Fleming
fda439b51e Fix comment 2021-05-14 08:06:07 -04:00
Thomas Fleming
a191978a97 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-14 07:40:08 -04:00
Thomas Fleming
1fc607b399 Remove busy-mmu and fix missing signal 2021-05-14 07:14:20 -04:00
Thomas Fleming
980c00fa64 Clean up MMU code 2021-05-14 07:12:32 -04:00
Elizabeth Hedenberg
0fe798d5e1 pushing coremark to main branch 2021-05-11 21:33:39 -04:00
Jarred Allen
dc41623754 Minor fixes in regression 2021-05-09 13:57:09 -04:00
Jarred Allen
788680fa4d Fix bug in regression script 2021-05-06 12:56:57 -04:00
Domenico Ottolia
f78f865e88 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-04 20:22:31 -04:00
Domenico Ottolia
1c884338b0 Forgot to add csr permission tests to testbench 2021-05-04 20:20:22 -04:00
Jarred Allen
15da77fe15 Clean up regression script and document it 2021-05-04 18:58:59 -04:00
ushakya22
6274c8cb80 Added mip tests to testbench 2021-05-04 15:36:06 -04:00
Thomas Fleming
1e0a5ef807 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-04 15:22:21 -04:00
bbracker
535046e494 small synthesis fixes 2021-05-04 15:21:01 -04:00
Thomas Fleming
37bba95500 Fix compiler warning in PMP checker 2021-05-04 15:18:08 -04:00
Domenico Ottolia
14becde792 Re-add medeleg tests to testbench 2021-05-04 14:42:20 -04:00
Ross Thompson
619dcb165d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-04 13:04:20 -05:00
Ross Thompson
2aa4db470b Fixed synthesis bug with icache valid bit. 2021-05-04 13:03:08 -05:00
ushakya22
6a71aafadc Updated CSR tests 2021-05-04 13:48:47 -04:00
Ross Thompson
87d3869a6e Fixed icache pcmux control for handling miss spill miss. 2021-05-04 11:05:01 -05:00
Thomas Fleming
192878b124 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-04 03:14:38 -04:00
Thomas Fleming
dac07e34cf Fix bug in PMP checker 
Now we only enforce PMP regions if at least one is non-null
 2021-05-04 03:14:07 -04:00
ushakya22
da352c81e7 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-04 02:22:17 -04:00
ushakya22
66344f0604 Added MIE tests to testbench 2021-05-04 02:22:01 -04:00
Thomas Fleming
d7fa0903bc Disable PMP checker to fix test loops 
There is a bug in the PMP checker where S or U mode attempts to make a
memory access while no PMP registers are set. We currently treat this as
a failure, when this should instead be allowed.
 2021-05-04 01:56:05 -04:00
Domenico Ottolia
2c39c0a6a5 Minor tweaks to mcause & scause tests 2021-05-04 01:33:49 -04:00
David Harris
7c2481bea6 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-04 01:19:57 -04:00
David Harris
4db3780ebb Fixed testbench to produce error when signature.output doesn't exist 2021-05-04 01:19:44 -04:00
Thomas Fleming
39135f221e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-04 01:14:13 -04:00
Domenico Ottolia
1556cc5b9f Use correct begin_signature for rv64p/MCAUSE and rv64p/SCAUSE 2021-05-04 01:04:12 -04:00
Domenico Ottolia
84911e6345 Fix 32 bit privileged tests!!! 2021-05-04 00:16:19 -04:00
Thomas Fleming
4f5ef65aeb Restore original order of tests 2021-05-03 23:50:21 -04:00
Thomas Fleming
d53afc8510 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-03 23:15:39 -04:00
Thomas Fleming
1f6db293fa Enable mmu tests in testbench 2021-05-03 23:15:23 -04:00
Domenico Ottolia
a7e89f43c1 Fix bug with IllegalInstrFaultM not getting correct value 2021-05-03 22:48:03 -04:00
Domenico Ottolia
12d8ff617b Run all tests 2021-05-03 22:38:59 -04:00
Domenico Ottolia
353d4e9238 Update cause tests to be longer 2021-05-03 22:38:26 -04:00
Domenico Ottolia
db4e447a25 Add mtvec and stvec tests to testbench 2021-05-03 22:19:50 -04:00
Shriya Nadgauda
c10d332c6e working testbench-imperas 2021-05-03 22:16:58 -04:00
Shriya Nadgauda
0be6b81df9 finishing merge conflict changes 2021-05-03 22:15:05 -04:00
Shriya Nadgauda
52e0b703b7 merge conflict fixes 2021-05-03 22:12:30 -04:00
Shriya Nadgauda
0282aebec7 updated pipeline tests 2021-05-03 22:07:36 -04:00
Thomas Fleming
f78f2b3b5d Adjust attributes in PMA checker 2021-05-03 21:58:32 -04:00
David Harris
96e90402c5 Rolled back fflush on uart. Use -syncio in Modelsim command line instead. 2021-05-03 20:04:44 -04:00
David Harris
062120f944 Flush uart print statements on \n 2021-05-03 19:51:51 -04:00
David Harris
743011194b Flush uart print statements on \n 2021-05-03 19:41:37 -04:00
David Harris
4285d60041 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 19:37:56 -04:00
David Harris
8758b6efa1 Flush uart print statements on \n 2021-05-03 19:37:45 -04:00
Elizabeth Hedenberg
08bfaeffe3 coremark print statment 2021-05-03 19:35:08 -04:00
Elizabeth Hedenberg
800f799b7c coremark updates 2021-05-03 19:35:07 -04:00
Elizabeth Hedenberg
81ed9b5d06 coremark directory changes 2021-05-03 19:35:06 -04:00
David Harris
2f5649832a Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 19:29:01 -04:00
David Harris
1f2da4c457 Flush uart print statements on \n 2021-05-03 19:25:28 -04:00
Ross Thompson
6a01ea9f2d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 16:57:36 -05:00
Domenico Ottolia
e59f8037be Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-03 17:56:05 -04:00
Ross Thompson
21c0ee0cf2 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 16:56:00 -05:00
Ross Thompson
ed4f2ecb24 fixed subtle typo in icache fsm. Was messing up hit spill hit. 
I believe the mibench qsort benchmark runs after this icache fix.
 2021-05-03 16:55:36 -05:00
Domenico Ottolia
ab68933466 Fix bug that caused stvec to get the wrong value 2021-05-03 17:54:57 -04:00
Thomas Fleming
3f7061d557 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-05-03 17:38:13 -04:00
Thomas Fleming
86a93d77b4 Implement PMP checker and revise PMA checker 2021-05-03 17:37:42 -04:00
Thomas Fleming
00c3b5a033 Remove remnants of InstrReadC 2021-05-03 17:36:25 -04:00
Jarred Allen
a21b84e2ad Add lint to regression 2021-05-03 17:32:05 -04:00
Ross Thompson
0a44d4dd4e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 14:53:54 -05:00
Ross Thompson
e09ac73eaf Removed combinational loops between icache and PMA checker. 2021-05-03 14:51:25 -05:00
Ross Thompson
7185905f7b Reduced icache to 1 port memory. 2021-05-03 14:47:49 -05:00
David Harris
699a8f3ac3 Extended maximum signature length to 1M 2021-05-03 15:29:20 -04:00
Katherine Parry
3f05e31954 fpu warnings fixed/commented 2021-05-03 19:17:09 +00:00
Thomas Fleming
94d734cca9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
Conflicts:
	wally-pipelined/src/ebu/ahblite.sv
 2021-05-03 14:02:19 -04:00
Ross Thompson
12b978fec2 Eliminated extra register and fixed ports to icache. 
Still need to support physical tag check and write in icache memory.
Still need to reduce to 1 port SRAM in icache.
I would like to refactor the icache code.
 2021-05-03 12:04:54 -05:00
bbracker
8ec0d18444 merge conflict resolved -- Ross and I made the same fix 2021-05-03 10:10:42 -04:00
bbracker
1db608fbc6 small rv64 plic test bugfix 2021-05-03 10:06:44 -04:00
Ross Thompson
fdf4954a20 Added back in function name to wave.do 2021-05-03 09:04:48 -05:00
Ross Thompson
b57c187208 Fixed typo in ifu for bypassing branch predictor. 
Fixed missing signal name in local history predictor.
 2021-05-03 08:56:45 -05:00
David Harris
c9806fb472 Fixed lint error in div 2021-05-03 09:26:12 -04:00
bbracker
fb0910d9c0 ifu lint fixes 2021-05-03 09:25:22 -04:00
bbracker
acd99be7f8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-05-03 09:23:52 -04:00
Noah Boorstin
8d417558ae busybear: remove now unneeded hack for fixed CSR issue 2021-05-01 15:17:04 -04:00
Katherine Parry
9252d08b41 fpu imperas tests run 2021-05-01 02:18:01 +00:00
bbracker
0d62440f60 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-04-30 06:26:35 -04:00
bbracker
9c08ce5359 rv32 plic test and lint fixes 2021-04-30 06:26:31 -04:00
Noah Boorstin
c9fcd3405d rollback regression to 400k instrs for busybear 2021-04-29 20:59:30 -04:00
Domenico Ottolia
830787e3e1 Make vectored interrupt trap handling work, and add tests for mtvec with vectored interrupts 2021-04-29 20:42:14 -04:00
Ross Thompson
893e03d55b Fixed memory size in configs for rv32ic and rv64ic. 
Removed warning on call to $fscanf.
 2021-04-29 17:36:46 -05:00
Domenico Ottolia
750d276feb Minor improvements to scause test 2021-04-29 16:48:07 -04:00
Domenico Ottolia
fdbd238a87 Add machine-mode timer interrupts to mcause tests 2021-04-29 16:39:18 -04:00
Thomas Fleming
10c7260980 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-04-29 16:30:00 -04:00
Domenico Ottolia
c9cb2f51d1 Same but don't break sim-wally this time 2021-04-29 15:33:27 -04:00
Domenico Ottolia
fdd4deec2f Add more exceptions to medeleg tests 2021-04-29 15:32:13 -04:00
ushakya22
de23edcfb9 fix to pcm bug 2021-04-29 15:21:08 -04:00
ushakya22
f139f248dc Working MIE timer tests 2021-04-29 15:19:43 -04:00
Domenico Ottolia
99a927be47 Add medeleg tests 2021-04-29 15:02:36 -04:00
Jarred Allen
246b41e604 Enhance lint-wally functionality 2021-04-29 14:48:41 -04:00
Jarred Allen
c6996ce39d Remove signal which no longer exists from default waves, so sim-wally works 2021-04-29 14:41:10 -04:00
Jarred Allen
000f48cd75 Fix compile error in branch predictor 2021-04-29 14:36:56 -04:00
Shreya Sanghai
b554dc8e72 fixed bug in gshare, global and local history BP 2021-04-29 06:14:32 -04:00
Thomas Fleming
e091f430e0 Clean up PMA checker and begin PMP checker 2021-04-29 02:20:39 -04:00