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1307 Commits

Author SHA1 Message Date
Ross Thompson
11109e5a88 Updated the function radix to have a new name FunctionName and it now pervents false transisions from the current function name when the PCD is flushed. 2021-03-24 13:03:43 -05:00
Domenico Ottolia
d67e28bf50 re-organize privileged tests to be in rv64p to rv32p folders 2021-03-24 13:51:25 -04:00
Jarred Allen
c1fe16b70b Give some cache mem inputs a better name 2021-03-24 12:31:50 -04:00
Jarred Allen
a51257abca Fix compile errors from const not actually being constant (why does Verilog do this) 2021-03-24 00:58:56 -04:00
Ross Thompson
1c6e37120e Fixed RAS errors. Still some room for improvement with the BTB and RAS. 2021-03-23 23:00:44 -05:00
Jarred Allen
4410944049 Merge branch 'main' into cache 2021-03-23 23:35:36 -04:00
Ross Thompson
84ad1353e4 Fixed a bunch of bugs with the RAS. 2021-03-23 21:49:16 -05:00
Katherine Parry
56dc8de009 fixed various bugs in the FMA 2021-03-24 01:35:32 +00:00
Ross Thompson
4fb7a1e0a6 Fixed the valid bit issue. Now the branch predictor is actually predicting instructions. 2021-03-23 20:20:23 -05:00
Ross Thompson
49348d734b fixed issue with BTB's valid bit not updating. There is still a problem is valid not ocurring in the correct clock cycle. 2021-03-23 20:06:45 -05:00
Ross Thompson
95dbc5f1fa fixed a whole bunch of bugs with the branch predictor. Still an issue with how PCNextF is not updated because the CPU is stalled. 2021-03-23 16:53:48 -05:00
Jarred Allen
d6ecc3ede0 Begin work on direct-mapped cache 2021-03-23 17:03:02 -04:00
Teo Ene
ef3d2dda48 Added BOOTTIM to InstrAccessFaultF calculation in uncore/imem 2021-03-23 15:21:13 -05:00
Ross Thompson
174557ae89 Simulation definitely shows the branch predictor counters and branch predictor don't work. :( 2021-03-23 14:04:58 -05:00
Ross Thompson
5edc90b1c2 added a whole bunch of interseting test code for branches which does not work. 2021-03-23 13:54:59 -05:00
Ross Thompson
6a050219d4 updated the branch predictor config. 2021-03-23 13:54:59 -05:00
Ross Thompson
9e61481414 Added first benchmark. 2021-03-23 13:54:59 -05:00
Ross Thompson
2b0f7cdd42 Temporary exe2memfile0.pl script to support starting addresses of 0. 2021-03-23 13:54:59 -05:00
Ross Thompson
e1842c8da6 Broken commit. Trying to get exe2memfile.pl to work correctly with non 0x8000_0000 starting addresses. 2021-03-23 13:54:59 -05:00
Noah Boorstin
69e5319675 busybear: more progress 2021-03-23 14:49:30 -04:00
Shreya Sanghai
1d6a2989ed PC counts branch instructions 2021-03-23 14:25:51 -04:00
Jarred Allen
0d05c51af9 Remove deleted signal from waves 2021-03-23 14:17:17 -04:00
Noah Boorstin
24e403bc35 busybear: more progress moving from instrf to instrrawd 2021-03-23 14:06:21 -04:00
Noah Boorstin
f3194c6388 busybear: ignore illegal instruction when starting 2021-03-23 13:28:56 -04:00
Jarred Allen
7da8af4c68 Another tweak to regression-wally.py comments 2021-03-23 00:18:38 -04:00
Jarred Allen
0f8fe8fb3b Document some internal signals 2021-03-23 00:10:35 -04:00
Jarred Allen
6ffa01cc4d Add comments explaining icache inputs 2021-03-23 00:07:39 -04:00
Jarred Allen
82de84469f Slight change to regression-wally.py comments 2021-03-23 00:02:40 -04:00
Jarred Allen
827993598d Small commit to see if new hook tests non-main branch 2021-03-22 23:57:01 -04:00
Noah Boorstin
d5bd5fa9d7 start migrating busybear over to InstrRawD/PCD 
this breaks busybear for now
 2021-03-22 23:45:04 -04:00
Noah Boorstin
15474f678d Merge branch 'main' into cache 2021-03-22 23:28:30 -04:00
Noah Boorstin
849641f31e busybear: add better warning on illegal instruction 
...also it seems that mret is being picked up as an illegal instruction??
 2021-03-22 18:24:35 -04:00
Noah Boorstin
34b8f750ce busybear: temporarially force rf[5] correct after failure to read CSR 2021-03-22 18:12:41 -04:00
Noah Boorstin
77dd0b4504 busybear: allow overwriting read values 2021-03-22 17:28:44 -04:00
Noah Boorstin
7bb31c3287 busybear: finally get the right error 2021-03-22 16:52:22 -04:00
bbracker
5efd5958e7 added delays to uart AHB signals 2021-03-22 15:40:29 -04:00
Jarred Allen
6ce52f9b80 Remove DelaySideD since it isn't needed 2021-03-22 15:13:23 -04:00
Jarred Allen
b871bfe714 Update icache interface 2021-03-22 15:04:46 -04:00
Noah Boorstin
2aa76b27e1 busybear: comment out some debug printing 2021-03-22 14:54:05 -04:00
Jarred Allen
3f897bbf53 Merge branch 'main' into cache 2021-03-22 14:50:22 -04:00
Noah Boorstin
74bcd9b994 regression: expect 200k instead of 100k busybear instrs 
and a minor busybear bugfix
 2021-03-22 14:47:52 -04:00
Jarred Allen
3748d03adc Merge branch 'main' into cache 2021-03-22 13:47:48 -04:00
bbracker
11d4a8ab34 first pass at PLIC interface 2021-03-22 10:14:21 -04:00
Katherine Parry
f741ba7702 fixed various bugs in the FMA 2021-03-21 22:53:04 +00:00
Jarred Allen
5b1db9b6a2 Change busybear testbench to reflect new location of InstrF 2021-03-20 18:20:27 -04:00
Jarred Allen
097e8edb3d Put Imperas testbench back 2021-03-20 18:19:51 -04:00
Jarred Allen
f9cf05a7d4 Fix bug with PC incrementing 2021-03-20 18:06:03 -04:00
Jarred Allen
a3a646d1a9 Merge branch 'main' into cache 2021-03-20 17:56:25 -04:00
Jarred Allen
a2bf5ac202 Fix another bug in the icache (why so many of them?) 2021-03-20 17:54:40 -04:00
Jarred Allen
c5f99c4a34 Revert "Change flop to listen to StallF" 
This reverts commit c8028710a5.
 2021-03-20 17:34:19 -04:00
Jarred Allen
b63bfc7afa Fix conflicts in ahb-waves that snuck through manual merging 2021-03-20 17:16:50 -04:00
Jarred Allen
c8028710a5 Change flop to listen to StallF 2021-03-20 17:04:13 -04:00
Katherine Parry
e317e7511e messy FMA rewrite using section 7.5.4 in The Handbook of Floating-Point Arithmetic 2021-03-20 02:05:16 +00:00
Jarred Allen
279c09b27c Merge changes from main 2021-03-18 18:58:10 -04:00
Jarred Allen
2a29def21c Add icache's read request to ahb wavs 2021-03-18 18:52:03 -04:00
bbracker
85363e941d AHB bugfixes and sim waveview refactoring 2021-03-18 18:25:12 -04:00
bbracker
98e93a63c0 maybe AHB works now 2021-03-18 17:47:00 -04:00
Shreya Sanghai
09faa40eb6 fixed minor bugs in testbench 2021-03-18 17:37:10 -04:00
Shreya Sanghai
bbe0957df5 Merge branch 'gshare' into main 
Conflicts:
	wally-pipelined/regression/wave.do
 2021-03-18 17:25:48 -04:00
Ross Thompson
1091dd10c1 Switched to gshare from global history. 
Fixed a few minor bugs.
 2021-03-18 16:05:59 -05:00
Ross Thompson
8f4051543c Fixed minor bug with the size of gshare. 2021-03-18 16:00:09 -05:00
Shreya Sanghai
eb86bfc084 removed unnecesary PC registers in ifu 2021-03-18 16:31:21 -04:00
Thomas Fleming
8d484174a7 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-18 14:36:42 -04:00
Thomas Fleming
7f7597e667 Connect tlb, pagetablewalker, and memory 2021-03-18 14:35:46 -04:00
Thomas Fleming
7d4906b1c7 Improve page table creation in python file 2021-03-18 14:27:09 -04:00
Noah Boorstin
bc1a0c6ee7 change ifndef to generate/if 2021-03-18 12:50:19 -04:00
Noah Boorstin
a2b0af460e everyone gets a bootram 2021-03-18 12:35:37 -04:00
Noah Boorstin
ced2a32d21 busybear: update memory map, add GPIO 2021-03-18 12:17:35 -04:00
Teo Ene
57f1ca5259 Switched coremark to RV64IM 2021-03-17 22:39:56 -05:00
Teo Ene
d2fe42d6d0 adapted coremark bare testbench to new dtim RAM HDL 2021-03-17 16:59:02 -05:00
Jarred Allen
e69376c823 Merge branch 'main' into cache 
Conflicts:
	wally-pipelined/testbench/testbench-imperas.sv
 2021-03-17 16:40:52 -04:00
Teo Ene
4fd0ecff69 Temporarily reverted my last few commits 2021-03-17 15:16:01 -05:00
Teo Ene
7446a7b479 fix to last commit 2021-03-17 15:07:02 -05:00
Teo Ene
3e849f99a6 fix to last commit 2021-03-17 15:02:15 -05:00
Teo Ene
d72d774a0b addition to last commit 2021-03-17 14:52:31 -05:00
Teo Ene
dfe6df2e00 Added Ross's addr lab stuff to coremark stuff 2021-03-17 14:50:54 -05:00
Elizabeth Hedenberg
041439c008 fixing coremark branch prediction 2021-03-17 15:15:55 -04:00
Elizabeth Hedenberg
d0ddb5f461 replicating coremark changes into coremark bare 2021-03-17 14:36:34 -04:00
Elizabeth Hedenberg
da758e9e14 Merge branch '3_3_2021' into main 
Making sure coremark works with spring break changes
 2021-03-17 14:11:37 -04:00
Ross Thompson
f070aae847 Fixed issue with sim-wally-batch. Are people still using this script? 2021-03-17 11:17:52 -05:00
Ross Thompson
3618a39087 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-17 11:07:57 -05:00
Ross Thompson
9f8f0242ca Added possibly working OSU test bench as a precursor to running a bp benchmark. 
Fixed a few bugs with the function radix.
 2021-03-17 11:06:32 -05:00
Domenico Ottolia
487b198055 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-16 23:27:09 -04:00
Domenico Ottolia
748372dc45 Add test runner for privileged 2021-03-16 23:26:59 -04:00
Noah Boorstin
bfa7aedd35 busybear: add seperate message on bad memory access becasue its confusing 2021-03-16 21:42:26 -04:00
Noah Boorstin
e7fae21eb8 busybear: add COUNTERS define 2021-03-16 21:08:47 -04:00
Domenico Ottolia
d354cbd37d Add privileged testbench 2021-03-16 20:28:38 -04:00
Domenico Ottolia
82ea97e304 Add privileged tests for mcause 2021-03-16 19:22:36 -04:00
Domenico Ottolia
1ceb7a7431 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-16 19:12:21 -04:00
Jarred Allen
152ffd16e2 Undo accidental change 2021-03-16 18:16:00 -04:00
Jarred Allen
ae5417195a Condense the parallel and non-parallel wally-pipelined-batch.do files into one 2021-03-16 18:15:13 -04:00
Jarred Allen
f6cbe44cbd Change busybear to only check that first 100k instructions load 2021-03-16 17:43:39 -04:00
Shreya Sanghai
36f0631203 added gshare and global history predictor 2021-03-16 17:03:01 -04:00
Jarred Allen
a82aa23399 Fix icache for jumping into misaligned instructions 2021-03-16 16:57:51 -04:00
Domenico Ottolia
b2faf3c888 Add privileged tests folder 2021-03-16 16:11:20 -04:00
Shreya Sanghai
9eed875886 added global history branch predictor 2021-03-16 16:06:40 -04:00
Jarred Allen
2d2092e8ab Merge remote-tracking branch 'origin/main' into cache 2021-03-16 14:17:39 -04:00
Shreya Sanghai
08e9149e20 made performance counters count branch misprediction 2021-03-16 11:24:17 -04:00
Shreya Sanghai
74f1641c5a Merge branch 'counters' into main 
added a configurable number of performance counters
 2021-03-16 11:01:30 -04:00
Jarred Allen
36452749d7 Merge remote-tracking branch 'origin/main' into cache 2021-03-15 19:08:25 -04:00
Noah Boorstin
9e1612c166 remove regression-wally.sh 2021-03-15 19:03:57 -04:00
Noah Boorstin
400791163e copy Ross's branch predictor preload change into busybear 2021-03-15 18:27:27 -04:00
Ross Thompson
4c8952de6a Converted branch predictor preloads to use system verilog rather than modelsim's load command. 2021-03-15 12:39:44 -05:00
Ross Thompson
f2a6e8c6cf Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 
The last commit message about rv32ic having issues is now invalid. Looks like the issue was resolved.
 2021-03-15 12:06:18 -05:00
Ross Thompson
806cfc4ea5 Fixed the parallel script so the rv64ic passes. 
rv32ic and busybear still have issues.
 2021-03-15 12:04:59 -05:00
Jarred Allen
ac9fd5a323 Fix BEQZ tests 2021-03-14 15:42:27 -04:00
Jarred Allen
926235b180 Merge upstream changes 2021-03-14 14:57:53 -04:00
Jarred Allen
deb13f34bb Get non-jump case working 2021-03-14 14:46:21 -04:00
bbracker
e58d17d5b7 slightly smarter dtim HREADY 2021-03-13 07:03:33 -05:00
bbracker
345254b5a3 slightly smarter dtim HREADY 2021-03-13 06:55:34 -05:00
bbracker
c5015e5809 imem rd2 adrbits bugfix 2021-03-13 00:10:41 -05:00
Ross Thompson
940d892f29 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-12 20:18:35 -06:00
Ross Thompson
7ceef2b0c6 Fixed the issue with the batch mode not working after adding the function radix. 2021-03-12 20:16:03 -06:00
bbracker
f4fb546969 clint HREADY signal update 2021-03-12 20:23:55 -05:00
Ross Thompson
86078d856f Cleaned up the function radix exractFunctionRadix script. I should change the name as this is no longer a modelsim radix. 2021-03-12 15:29:02 -06:00
Ross Thompson
6ee97830f7 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-12 14:58:04 -06:00
Ross Thompson
7743d8edc3 Cleanup of the branch predictor flush and stall controls. 2021-03-12 14:57:53 -06:00
David Harris
56b690ccb9 Drafted rv32a tests 2021-03-12 00:06:23 -05:00
David Harris
865c103599 64-bit AMO debugged 2021-03-11 23:18:33 -05:00
Ross Thompson
318b642359 Improve version of the function radix which does not cause the wave file rendering to slow down. 2021-03-11 17:12:21 -06:00
Noah Boorstin
cc94046084 test regression script: add commented out rv32ic tests 2021-03-11 12:57:54 -05:00
Noah Boorstin
394b79b5de add rv32ic regression test 2021-03-11 12:40:29 -05:00
Noah Boorstin
54fa16d783 test regression script: parallalize better 2021-03-11 12:25:20 -05:00
Noah Boorstin
aba54659bf test regression script: try adding verilator checking also 2021-03-11 07:32:31 +00:00
Noah Boorstin
81c14f899d try adding delays to test regression script 2021-03-11 06:59:50 +00:00
Noah Boorstin
1093b07670 this is just a test for now, try to reimplement regression-wally in bash 2021-03-11 06:45:45 +00:00
Noah Boorstin
a8b242a6ef busybear: account for CSR moving 2021-03-11 06:45:14 +00:00
Thomas Fleming
1294235837 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
Conflicts:
	wally-pipelined/src/ebu/ahblite.sv
 2021-03-11 00:15:58 -05:00
David Harris
42275e92ed Initial untested implementation of AMO instructions 2021-03-11 00:11:31 -05:00
Jarred Allen
4757794887 Return testbench to normal 2021-03-10 22:58:41 -05:00
Ross Thompson
845115302e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-10 15:37:02 -06:00
Ross Thompson
f92f766573 Added debug option to disable the function radix if not needed. 
Function radix slows the simulation by 70 to 76 s (8.5%) for the rv64i tests.
 2021-03-10 15:17:02 -06:00
Ross Thompson
dcae90e3ad I finally think I got the function radix debugger working across both 32 and 64 bit applications. 2021-03-10 14:43:44 -06:00
Noah Boorstin
2c25e270a2 change flop in ahb controller to use normal flop module 2021-03-10 19:14:02 +00:00
Ross Thompson
50a92247b3 Finally I think I have the function radix mapping across all applications correctly. I still need to clean up the code a bit so it is easier to understand. 2021-03-10 11:00:51 -06:00
Jarred Allen
ae9bcc174d Merge upstream changes 2021-03-09 21:20:34 -05:00
Jarred Allen
3172be3039 More progress 2021-03-09 21:16:07 -05:00
David Harris
c2f340681d Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-09 09:28:32 -05:00
David Harris
17c0f9629a WALLY-LRSC atomic test passing 2021-03-09 09:28:25 -05:00
Noah Boorstin
4a8b689f62 busybear: better NOPing out of float instructions 2021-03-08 21:24:19 +00:00
Noah Boorstin
c780a25f92 busybear: better instrF checking 
So this now checks instrF only when StallD is low. @kaveh I'd love your
opinion on this. I don't know if this is a good idea or not. Ideally we
should probably be checking InstrRawD instead, but I kind of want to stay
checking the instr in the F stage instead of D for now. Idk if this is worth
staying in F, I can't really see any big downsides to checking the instruction in
D except that PCD isn't an external signal, but neither is StallD, so.....
Anyway I'd love others' thoughts on this
 2021-03-08 19:48:12 +00:00
Noah Boorstin
1b206d5a3c busybear: make a second .do file with better optimization for command line mode 2021-03-08 19:35:00 +00:00
Noah Boorstin
93c9c57426 busybear: load mem files from verilog instead of .do 2021-03-08 19:26:26 +00:00
David Harris
9c7da510fb Created atomic test vector and directories 2021-03-08 09:38:55 -05:00
Ross Thompson
d5f151eb0f Updated the paths to the branch predictor memory preloads for busy bear. 2021-03-05 15:36:00 -06:00
Ross Thompson
87ed6d510c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-05 15:27:22 -06:00
Ross Thompson
301166d062 Oups. I forgot to update other do files with the commands to preload the branch predictor memories. 2021-03-05 15:23:53 -06:00
Thomas Fleming
2b891196d9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-05 16:20:53 -05:00
Noah Boorstin
3c5be59e9b busybear: add branch preditor loading to do file 
(sorry to add more loading to the do instead of less)
 2021-03-05 21:01:41 +00:00
Thomas Fleming
be6ee84d87 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-05 15:46:51 -05:00
Noah Boorstin
86142e764a Merge branch 'main' into busybear 2021-03-05 20:27:19 +00:00
Noah Boorstin
889d2c0b85 fix wally-pipelined-batch.do to match wally-pipelined.do 2021-03-05 20:27:01 +00:00
bbracker
850a2e9329 added a delay to sel signals 2021-03-05 15:07:34 -05:00
bbracker
77e2e357a7 more merging fixes 2021-03-05 14:36:07 -05:00
bbracker
ed4ff1ecd0 remove deprecated mem signals 2021-03-05 14:27:38 -05:00
bbracker
19fc7d2381 refactored sim file 2021-03-05 14:25:16 -05:00
bbracker
0f4a231543 first merge of ahb fix 2021-03-05 14:24:22 -05:00
Noah Boorstin
1a11b60664 busybear: slight testbench update 2021-03-05 19:00:40 +00:00
Thomas Fleming
2e2eb5839f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-05 13:35:44 -05:00
Thomas Fleming
8c97143be6 Place tlb parameters into constant header file 2021-03-05 13:35:24 -05:00
Thomas Fleming
7e11317a2d Export SATP_REGW from csrs to MMU modules 2021-03-05 01:22:53 -05:00
Noah Boorstin
f48af209c4 busybear: make CSRs only weird for us 2021-03-05 00:46:32 +00:00
Noah Boorstin
5a3ba1174e busybear: better implenetation of sim-busybear-batch 2021-03-05 00:39:03 +00:00
Ross Thompson
a662aa487c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-04 17:31:27 -06:00
Ross Thompson
264480f258 updated the function radix to look at wally signals. 2021-03-04 17:31:12 -06:00
Jarred Allen
41f682f848 Partial progress towards compressed instructions 2021-03-04 18:30:26 -05:00
Noah Boorstin
dfae278ffb busybear: make imperas tests work again 2021-03-04 22:44:49 +00:00
Katherine Parry
cfac6bf0c7 fixed various bugs 2021-03-04 22:20:39 +00:00
Katherine Parry
09564f1c77 fixed various bugs 2021-03-04 22:20:28 +00:00
Katherine Parry
a6bc39b5ad fixed various bugs 2021-03-04 22:20:23 +00:00
Katherine Parry
526e3f5996 fixed various bugs 2021-03-04 22:20:02 +00:00
Katherine Parry
1e906b36a0 fixed various bugs 2021-03-04 22:19:21 +00:00
Katherine Parry
3fb0f323b8 fixed various bugs 2021-03-04 22:18:47 +00:00
Katherine Parry
fdfc0dbf46 fixed various bugs 2021-03-04 22:18:19 +00:00
Jarred Allen
106718b196 Remove rd2, working for non-compressed 2021-03-04 16:46:43 -05:00
Thomas Fleming
3303a013ef Merge branch 'walker' into main 2021-03-04 15:27:03 -05:00
Noah Boorstin
735c6789ea busybear: comment out instraccessfaultf for imem for now 2021-03-04 20:26:41 +00:00
Noah Boorstin
827dfd774b Merge branch 'main' into busybear 
Conflicts:
	wally-pipelined/src/uncore/imem.sv
 2021-03-04 20:16:03 +00:00
Ross Thompson
66e84f3a2c Merge branch 'bp' into main 
Concerns:
1. I don't think the correct data buses are going to the multiplier.
2. I'm not sure the FlushF signal is correct.
 2021-03-04 13:35:46 -06:00
Ross Thompson
4d14c714a7 Fixed forwarding around the 2 bit predictor. 2021-03-04 13:01:41 -06:00
Shreya Sanghai
246dbd05e7 fixed bugs 2021-03-04 12:59:45 -05:00
Shreya Sanghai
f0ec365117 added performance counters 2021-03-04 11:42:52 -05:00
bbracker
448cba2a5b JALR testing 2021-03-04 10:37:30 -05:00
Ross Thompson
52d95d415f Converted to using the BTB to predict the instruction class. 2021-03-04 09:23:35 -06:00
Teo Ene
06be82fc67 Added stop to coremark_bare testbench 2021-03-04 07:47:07 -06:00
Teo Ene
8f1584ca04 Edited assemby of bare-metal coremark to make it run 2021-03-04 07:45:40 -06:00
Teo Ene
396dc61564 Linux CoreMark and baremetal CoreMark split into two separate tests/configs 2021-03-04 07:44:33 -06:00
Teo Ene
6ebb79abe0 Linux CoreMark is operational 2021-03-04 05:58:18 -06:00
Thomas Fleming
de3f2547f4 Install dtlb in dmem 2021-03-04 03:30:06 -05:00
Thomas Fleming
1df7151fb6 Install tlb into ifu 2021-03-04 03:11:34 -05:00
Thomas Fleming
2e409f2299 Merge branch 'tlb_toy' into main 2021-03-04 02:41:11 -05:00
Thomas Fleming
5f98c932bf Move tlb into mmu directory 2021-03-04 02:39:08 -05:00
Teo Ene
f060f6cb9d Fix to 32-bit option of commit babe6ce9db 2021-03-04 01:33:34 -06:00
Teo Ene
08a7f6ec25 In the process of updating coremark.RV64I program to work with Dr. Harris's perl script. Commiting to make it easier to switch branches 2021-03-04 01:27:05 -06:00
Thomas Fleming
d9f396ee0e Merge branch 'main' into tlb_toy 2021-03-04 01:18:04 -05:00
Thomas Fleming
347275e7ee Generalize tlb module 
- number of tlb entries is now parameterized
- tlb now supports rv64i
 2021-03-04 01:13:31 -05:00
Teo Ene
6031269de8 Implemented fix disucssed with Elizabeth 2021-03-03 18:17:53 -06:00
Thomas Fleming
394051c02f Begin hardware page table walker 2021-03-03 17:13:45 -05:00
Thomas Fleming
d8ac9034b7 Create virtual memory ad-hoc test 
Test program is currently failing on ovpsim. There is no indication that ovpsim
is properly implementing virtual memory translation when satp is set accordingly.
Need to confirm whether this is a problem with ovpsim, how ovpsim is being
called, or the test itself.
 2021-03-03 17:06:37 -05:00
Teo Ene
4562c61af3 Fix to last push 2021-03-03 15:20:38 -06:00
Teo Ene
37bf3d836f Updated coremark .do file for easier debugging 2021-03-03 15:10:39 -06:00
Teo Ene
e6044b9867 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-02 17:23:44 -06:00
Teo Ene
e7f7f980b3 Updated coremark .do file for easier debugging 2021-03-02 17:23:39 -06:00
Noah Boorstin
21b1c4163c busybear: add sim-busybear and sim-busybear-batch based on sim-wally 2021-03-01 21:01:15 +00:00
Noah Boorstin
62b441f3f5 busybear: probably discovered bug in ahb code 2021-03-01 20:56:04 +00:00
Noah Boorstin
965d48afe7 busybear: only check pc when it actually changes 2021-03-01 19:08:35 +00:00
Noah Boorstin
4833b36535 busybear: more adapting to new memory system 2021-03-01 18:50:42 +00:00
Noah Boorstin
26d4024b33 busybear: fix bootram range 2021-03-01 17:45:21 +00:00
David Harris
9bcddfa5dd Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-01 00:09:55 -05:00
David Harris
2543c29839 Initial (untested) implementation of lr and sc 2021-03-01 00:09:45 -05:00
Teo Ene
babe6ce9db Properly implemented the fix from commit 31c07b2adc 2021-02-28 22:22:04 -06:00
Noah Boorstin
bcc0010498 Merge branch 'main' into busybear 2021-02-28 20:45:08 +00:00
Noah Boorstin
f306d2d2e1 busybear: start preloading bootmem 2021-02-28 20:43:57 +00:00
Noah Boorstin
db86d20d11 busybear: check instead of providing InstrF 2021-02-28 16:46:53 +00:00
Noah Boorstin
a03796a519 busybear: change sstatus, mstatus reset value 2021-02-28 16:19:03 +00:00
Noah Boorstin
6e70ae8b3d busybear: add 2nd dtim for bootram 2021-02-28 16:08:54 +00:00
Noah Boorstin
edd5e9106d busybear: remove gpio, start adding 2nd ram 2021-02-28 06:02:40 +00:00
Noah Boorstin
e5e345d161 busybear: instantiate normal wallypipelinedsoc 2021-02-28 06:02:21 +00:00
Ross Thompson
7592a0dacb Shreya and I found a bug with the exeuction of JAL and JALR instructions. The link was only set in the writeback stage. Once the branch predictor started correctly predicting JAL(R)s the ALU and forwarding logic need to have the PCLinkE at the execution stage in case an instruction in the next two clocks need the data. 2021-02-26 20:12:27 -06:00
Ross Thompson
37e6a45d76 Updating the test bench to include a function radix. Not done. 2021-02-26 19:43:40 -06:00
David Harris
cf03afa880 Eliminated flushing pipeline on CSR reads 2021-02-26 17:00:07 -05:00
David Harris
015b632eb1 Cleaned out unused signals 2021-02-26 09:17:36 -05:00
kaveh pezeshki
c7863d58cd merged with main to integrate with AHB 2021-02-26 05:37:10 -08:00
Noah Boorstin
ab9247d625 busybear: add main ram loading, better instr checking also 2021-02-26 20:26:54 +00:00
kaveh Pezeshki
ad631ec3a1 fixed sensitivity list on error checking always block, removed useless once and for all 2021-02-26 13:41:16 -05:00
kaveh pezeshki
d32421822c restored 2021-02-26 02:22:08 -08:00
David Harris
b16846bddb Clean up bus interface code 2021-02-26 01:03:47 -05:00
David Harris
24f767a404 Retimed peripherals for AHB interface 2021-02-26 00:55:41 -05:00
David Harris
c060e427f0 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-02-25 15:49:38 -05:00
David Harris
a16fd95eed Restored to working multiplier after Lab 2 2021-02-25 15:32:43 -05:00
Brett Mathis
ec82453ba1 FPU Assembly tests 2021-02-25 14:32:36 -06:00
Teo Ene
6be5bb1f84 Fixed previous commit 2021-02-25 11:24:44 -06:00
Teo Ene
31c07b2adc Edited imem to account for TIMBASE==0; still hard-coded and needs to be improved, but works with coremark config now. 2021-02-25 11:23:01 -06:00
Teo Ene
61b872a3e8 Changed TIMBASE in coremark config file 2021-02-25 11:03:41 -06:00
Teo Ene
c47872c2af Changed .do file back to run all 2021-02-25 09:58:54 -06:00
David Harris
d00d42cf9a Merged bus into main 2021-02-25 00:28:41 -05:00
Teo Ene
3e5de35fc4 Added provisional coremark files from work with Elizabeth 2021-02-24 20:07:07 -06:00
kaveh pezeshki
3bb8e0d918 condensed always blocks to avoid race conditions 2021-02-24 11:35:28 -08:00
Noah Boorstin
3d82ceffb7 busybear: preload bootram 
thanks to Prof Stine for the .do file commands

@kaveh can you check line 201? it does nothing, but things break when
I remove that line
 2021-02-24 18:46:09 +00:00
David Harris
f5e9c91193 All tests passing with bus interface 2021-02-24 07:25:03 -05:00
kaveh pezeshki
b36a5614b4 added comments for RAM and bootram, removed trailing whitepace 2021-02-23 21:28:33 -08:00
Noah Boorstin
c8e9edcc43 busybear: add bootram section in the same manner as ram 2021-02-24 02:02:28 +00:00
Noah Boorstin
a24270c4ca busybear: add support for subwords in ram 
this is really weird and i'm not sure if i did it right. I'd love if @kaveh could review it
 2021-02-24 01:51:18 +00:00
Noah Boorstin
00605864fc busybear: start adding ram 2021-02-23 22:01:23 +00:00
Katherine Parry
8f5cc19143 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-02-23 20:21:53 +00:00
Katherine Parry
7b103423e1 inital FMA push 2021-02-23 20:19:12 +00:00
Noah Boorstin
d5e7a8a4cf busybear: remove unused signals 2021-02-23 19:38:19 +00:00
Noah Boorstin
ceb7df3561 busybear: instantiate soc instead of hart 2021-02-23 18:59:06 +00:00
David Harris
c52a99ce2d Fixed fetch stall after jump in bus unit 2021-02-23 09:08:57 -05:00
David Harris
817f81c356 Debugging Bus interface 2021-02-22 13:48:30 -05:00
kaveh pezeshki
62d9185212 Merge remote-tracking branch 'origin/tlb_toy' into busybear 2021-02-22 02:23:01 -08:00
Ross Thompson
9b3637bd87 RAS needs to be reset or preloaded. For now I just reset it. 
Fixed bug with the instruction class.
Most tests now pass.  Only Wally-JAL and the compressed instruction tests fail.  Currently the bpred does not support compressed.  This will be in the next version.
 2021-02-19 20:09:07 -06:00
Ross Thompson
00de91cc87 Added FlushF to hazard unit. 
Fixed some typos with the names of signals in the branch predictor.  They were causing signals to be not set.  Note there is a modelsim flag which prevents it from compiling if a logic is undefined.
I will look this up and add it to the compiler.
 2021-02-19 16:36:51 -06:00
Ross Thompson
f25de68b7d minor change to wave file. 2021-02-19 09:08:13 -06:00
Ross Thompson
c6ebe7733b Hacked the sram memory models to reset their internal registers. This allows the simulation to run but is only temporary. 
About 149307ns of simulation run.
 2021-02-18 21:32:15 -06:00
Thomas Fleming
21552eaf9d Create simple TLB 
This TLB is just a demonstration and is not currently
instantiated by the IFU or DFU.
 2021-02-18 18:06:09 -05:00
David Harris
acd7ba8b60 Updated creation date of mul 2021-02-18 08:13:08 -05:00
Ross Thompson
de9e383bc6 Wrote a bash script to generate custom modelsim radix which maps instruction addresses into human readable lables. 
Once combined with some simulation verilog this will display the current function in modelsim.
 2021-02-17 22:20:28 -06:00
Ross Thompson
5df7e959f3 Integrated the branch predictor into the hardward. Not yet working. 2021-02-17 22:19:17 -06:00
David Harris
2f5b4c3a25 Resotred part of multiplier for lab 2 2021-02-17 16:14:04 -05:00
David Harris
64536dbc34 Removed multiplier for lab 2 2021-02-17 16:06:16 -05:00
David Harris
dc758a0c7b Multiplier tweaks 2021-02-17 16:00:27 -05:00
David Harris
3edf910c18 Started to integrate OSU divider 2021-02-17 15:38:44 -05:00
David Harris
cb0054b524 Multiply instructions working 2021-02-17 15:29:20 -05:00
Noah Boorstin
5835641c6c busybear testbench: check (almost) all the CSRs 2021-02-16 20:03:24 -05:00
David Harris
8dec69c2ce Added MUL 2021-02-15 22:27:35 -05:00
Ross Thompson
78db3654c6 We now have a solid rough draft of the 2 bit sat counter branch predictor with BTB and RAS. 
This is not yet tested but the system verilog does compile.
 2021-02-15 14:51:39 -06:00
David Harris
f00728448a WALLY ALU tests 2021-02-15 10:16:31 -05:00
David Harris
37dba8fd26 More memory interface, ALU testgen 2021-02-15 10:10:50 -05:00
Domenico Ottolia
75d9091fe8 Add privileged test cases 2021-02-14 17:01:46 -05:00
Ross Thompson
3ec1f668fc added branch predictor 2 bit table + SRAM model. The SRAM model is only approximate, but it does correctly model the read and write pipelined behavior. 2021-02-14 15:13:55 -06:00
Ross Thompson
30df1cdd25 The top level of the branch predictor built and compiles. Does not yet function. Missing the BTB, RAS, and direction prediction tables. 2021-02-14 11:06:31 -06:00
Shreya Sanghai
30bfd7534c added branch tests 2021-02-12 22:40:08 -05:00
Noah Boorstin
7312da1a99 busybear: allow testbench to ignore lack of MMU for now 
I'd really like to go over this with someone else, not sure if this is
a good thing to be doing

If it is, we're at 1M instructions!
 2021-02-12 20:08:56 +00:00
Noah Boorstin
97302dd12f busybear: slightly neater error handling 2021-02-12 17:21:56 +00:00
bbracker
9231646fb3 bus rw bugfix and peripherals testing 2021-02-12 00:02:45 -05:00
Noah Boorstin
5bf6add635 bump into virtual/physcial memory? 2021-02-11 23:06:12 -05:00
Noah Boorstin
4427780a41 busybear: more updates 
now gets to instruction 839037 before failing
also updates to match new gdb output format

umm there seems to be something wrong with the SSTATUS CSR. Just leaving
it out for now, will come back and check it later
 2021-02-11 22:42:58 -05:00
Tejus Rao
5158ca4220 added test cases for ADDW, SUBW, SLLW, SRLW, SRAW 2021-02-11 13:38:38 -05:00
Teo Ene
8a6de4fb86 Adding coremark testbench and do files that Elizabeth has written thus far, on this account, in order to avoid merge conflicts 2021-02-10 20:48:39 -06:00
ethan-falicov
9edc4b6bfe Fixed merge conflict stuff 2021-02-10 10:03:30 -05:00
ethan-falicov
7e8a58de1a More merge conflicts yay 2021-02-10 09:54:30 -05:00
ethan-falicov
f778f464b7 Merge conflict fixing 2021-02-10 09:45:47 -05:00
ethan-falicov
06541260e0 Adding I Type test cases from Lab 1 2021-02-10 09:39:43 -05:00
David Harris
183a2dcfb5 Debugging bus interface. 2021-02-10 01:43:54 -05:00
David Harris
2357f5513b Debugging instruction fetch 2021-02-09 11:02:17 -05:00
David Harris
63c7c18771 Fixed lw by delaying read value by one cycle 2021-02-07 23:28:21 -05:00
David Harris
3551cc859b Data memory bus integration 2021-02-07 23:21:55 -05:00
Jarred Allen
403a0d033c Fix compile error in imperas testbench 2021-02-07 15:48:12 -05:00
Elizabeth Hedenberg
81a1eb9a74 merge conflict? 2021-02-07 02:34:49 -05:00
Noah Boorstin
01c0f9db63 Busybear: next week of updates 
- move parsed instructions out of git, to /courses/e190ax/busybear_boot
 - parsed first 1M instructions, and now parse from split GDB runs
 - now at about 230k instructions, can't progress further for now since atomic instructions
   aren't implemented yet
 2021-02-07 03:14:48 +00:00
Jarred Allen
48ade25577 Actually run the WALLY-LOAD tests 2021-02-06 14:56:40 -05:00
Jarred Allen
edd758453e Add test vector set for load instructions 2021-02-06 13:05:59 -05:00
bbracker
691d651fde JAL testing 2021-02-05 08:08:42 -05:00
Noah Boorstin
14cde0d59c Change CSR reset and available bits to conform to OVPsim 
Now actually keeping perfectly in line with OVP for the first 100k instrs. Yay.
 2021-02-04 22:03:45 +00:00
Thomas Fleming
8588a1ed6b Complete STORE tests 2021-02-04 15:38:22 -05:00
Noah Boorstin
dc881bd51b busybear: add more CSRs 2021-02-04 20:13:36 +00:00
Noah Boorstin
d9431d5bed busybear: check initial values also 2021-02-04 19:22:09 +00:00
Brett Mathis
79cb7ed571 Parallel FSR's and F CTRL logic 2021-02-04 02:25:55 -06:00
Jarred Allen
ea791cb057 Change busybear test to use work-busybear library 2021-02-03 11:12:47 -05:00
Jarred Allen
743695400d Start on a test set for loads 2021-02-03 00:37:43 -05:00
David Harris
91f6858de7 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-02-02 19:44:43 -05:00
David Harris
a44c2abb12 Minor tweaks 2021-02-02 19:44:37 -05:00
Jarred Allen
10f023b44d Refactor regression test 2021-02-02 17:22:29 -05:00
Noah Boorstin
b370be4a8a Add busybear testbench to nightly regression checking 
If you don't like how I did this please feel free to undo it
 2021-02-02 22:05:35 +00:00
Noah Boorstin
00d9e13d68 same thing but do that right this time 2021-02-02 21:47:15 +00:00
Noah Boorstin
56ff32f857 change undefined syntax in extend.sv 
don't need verilator execption anymore
 2021-02-02 21:39:20 +00:00
David Harris
d56d7a75a6 Rename ifu/dmem/ebu signals to match uarch diagram 2021-02-02 15:09:24 -05:00
David Harris
aee44bb343 Changed DTIM latency to 2 cycles 2021-02-02 14:22:12 -05:00
David Harris
4fbb5f0f1b Cleaned up hazard interface 2021-02-02 13:53:13 -05:00
David Harris
e661b32821 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-02-02 13:42:35 -05:00
David Harris
c23afbda3a Moved LoadStall generation to IEU 2021-02-02 13:42:23 -05:00
David Harris
aad1d3d7dd Moved writeback pipeline registers from datapth into DMEM and CSR 2021-02-02 13:02:31 -05:00
Jarred Allen
5090537f3c Fix intermittent errors caused by weird library stuff 2021-02-02 11:20:09 -05:00
Noah Boorstin
8d53e36bbc Busybear: start checking CSRs 
scounteren and mcounteren are currenly manually deleted from the CSRs list
(see slack channl #linux-bringup)

and 3 of the CSRs referenced are skipped because of weird locations for them

oh and this doesn't check their initial state, just their changing. This could be a problem
 2021-02-02 06:06:03 +00:00
David Harris
9d7e242596 Moved fpu to temporary location to fix compile and cleaned up interface formatting 2021-02-01 23:44:41 -05:00
Jarred Allen
2b75e38239 Fix issues in parallel regression testing 2021-02-01 23:29:03 -05:00
Noah Boorstin
c634b2f81e busybear: start adding CSR checking 
@kaveh is there a less verbose way to do this?
 2021-02-01 22:08:51 -05:00
Brett Mathis
94de3e9fb2 OSU FPU IP initial commit 2021-02-01 19:33:43 -06:00
Noah Boorstin
ff88214730 busybear: change register file checking to only store register changed 
this should make parsedRegs.txt much smaller
 2021-02-02 01:27:43 +00:00
Noah Boorstin
416b3fc96c Add PCW checking 
for now, doesn't check InstrW because it fails on compressed instructions
 2021-02-01 23:57:33 +00:00
David Harris
056b147b13 Renamed DCU to DMEM 2021-02-01 18:52:22 -05:00
Jarred Allen
84801213d6 Parallelize regression-wally.p 2021-02-01 15:40:27 -05:00
Noah Boorstin
a432d607ce busybear: print warning when NOPing out instructions 2021-02-01 19:44:56 +00:00
Noah Boorstin
b7f63c1dc7 busybear: NOP out floating point instructions for now 
Why does linux even try to do float stuff doing booting??
also, now runs the first 100k instructions!
 2021-01-30 19:52:47 +00:00
Noah Boorstin
4358f086be update busybear testbench to conform to new structure 
aaaaaaaaaaaaaaaaaahhhh so many changes

also the testbench now uses another internal signal,
which I don't like, but I can't think of a better option rn
 2021-01-30 19:19:00 +00:00
David Harris
396cea1ea7 Reorganized src hierarchically 2021-01-30 11:50:37 -05:00
David Harris
fc1fb94217 Working on reading instruction from TIM 2021-01-30 01:57:51 -05:00
David Harris
61fd7c4499 Adding stalls for memory delays 2021-01-30 01:43:49 -05:00
David Harris
9c81278f28 Added HCLK and HRESETn 2021-01-30 00:56:12 -05:00
David Harris
a357f2a0e7 Connected AHB bus to Uncore 2021-01-29 23:43:48 -05:00
David Harris
73a584b223 Added SATP, PMPCFG0-3, PMPADDR0 CSRs for Linux team 2021-01-29 18:06:36 -05:00
David Harris
e700e404c9 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-29 17:29:01 -05:00
David Harris
9a51bb27c3 Implemented adrdec for uncore 2021-01-29 17:28:53 -05:00
Teo Ene
9eafdbe349 - Removed latch on CSRCReadValM in csrc.sv 
- Changed top level to wallypipelinedhart
 2021-01-29 15:56:51 -06:00
David Harris
8d4f5277d2 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-29 15:38:01 -05:00
David Harris
dc2443c55b Moving data memory to uncore 2021-01-29 15:37:51 -05:00
Teo Ene
3d02d6f09f Added AHBW to rv32ic config file as well 2021-01-29 12:29:08 -06:00
Noah Boorstin
194d5b55ab update busybear testbench to conform to new structure 2021-01-29 17:46:50 +00:00
David Harris
a94c09cad8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-29 01:07:22 -05:00
David Harris
ed3cb83c10 Added ahblite bus interface unit 2021-01-29 01:07:17 -05:00
Noah Boorstin
dabb026104 busybear: lie about MISA to match OVP's MISA 2021-01-29 00:58:56 -05:00
Noah Boorstin
8ab5879af5 busybear testbench: test on first 100k instrs 
currently gets about 47k instrs correctly
also fix gdb parsing to avoid accidently matching on function names
 2021-01-29 00:14:23 -05:00
David Harris
618c6e4813 Renamed modules in privileged unit 2021-01-28 23:21:12 -05:00
David Harris
fd2f854a69 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-28 21:40:57 -05:00
David Harris
05b755958f Hint to optimize ifu 2021-01-28 21:40:48 -05:00
Noah Boorstin
619dec1490 busybear: simulate first 10k instructions 
I know we need to add CSR checking sometime soon
Also I'm a bit sketpical this is all working properly, and that no new bugs
were uncovered from 1k instrs to 10k instrs
 2021-01-28 19:44:58 -05:00
Noah Boorstin
4f84bd3c8f busybear: fix misaligned writing checking 2021-01-28 19:35:09 -05:00
Noah Boorstin
beb93e2508 busybear: add more test instructions 
currently testing first 1k instrs
 2021-01-28 16:41:37 -05:00
Noah Boorstin
287cf4e5a6 oops forgot to add C.BEQZ, C.BNEZ checks to busybear testbench 2021-01-28 16:35:12 -05:00
Noah Boorstin
91e9defd0a more of the same fixes 2021-01-28 16:26:15 -05:00
Noah Boorstin
623d9feeab more misaligned read fixing 
I'm getting fairly concerned about this, I feel like
this should only work if the memory ignores the lower 3 or 4 bits of the adr
 2021-01-28 16:14:35 -05:00
David Harris
12c6006f07 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-28 15:44:14 -05:00
David Harris
fe0876027f Fixed floating signals in clint and ieu 2021-01-28 15:44:05 -05:00
Noah Boorstin
405c9d90b5 busybear testbench: understand bytemask for writes 2021-01-28 15:42:47 -05:00
David Harris
ad5d4793b6 Fixed c.jr instruction improperly writing ra 2021-01-28 15:18:23 -05:00
Noah Boorstin
a4bac85ece busybear: ret is only 1 word 2021-01-28 14:47:40 -05:00
Noah Boorstin
0befdfacec add speculative exception for compressed instructions 2021-01-28 14:40:35 -05:00
Noah Boorstin
27142f0fef testbench now understands lw not aligned to 8 bytes 
also busybear now has first 500 instead of 100 instrs
and prints current instrs less
 2021-01-28 13:33:22 -05:00
Noah Boorstin
a2598b2b30 busybear testbench: check for read data address also 
and check for more end of files better
 2021-01-28 13:16:38 -05:00
Noah Boorstin
f2aea55def update busybear testbench to conform to new structure 2021-01-28 01:21:47 -05:00
Noah Boorstin
206747b8b2 Busybear test now processes first 100 instrs correctly! 
- changed test parser to recognize lw in addition to lw

also, added temporary questa files (wlft*) to .gitignore
 2021-01-28 01:19:27 -05:00
Noah Boorstin
8f6994196a fix memory write address decoding for busybear tests 2021-01-28 01:19:26 -05:00
David Harris
f95d0690ca Created DCU and moved memdp into DCU 2021-01-28 01:03:12 -05:00
David Harris
be1d1886a9 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-28 00:22:11 -05:00
David Harris
a50b6c2a15 Provided PC + 2 or 4 (PCLink) for JAL 2021-01-28 00:22:05 -05:00
Noah Boorstin
28fabb94ee update busybear testbench to conform to new structure 2021-01-27 23:42:19 -05:00
David Harris
4df461ad77 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-27 22:49:55 -05:00
David Harris
824014c5c0 Repartitioned with Instruction Fetch Unit, Integer Execution Unit 2021-01-27 22:49:47 -05:00
Noah Boorstin
c9baa70e26 update busybear testbench to conform to new structure 2021-01-27 12:54:09 -05:00
David Harris
616afaba69 Moved privileged unit from datapath to hart 2021-01-27 07:46:52 -05:00
David Harris
e84fbd0a73 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-27 06:40:39 -05:00
David Harris
b88508ca11 Repartitioned datapath and controller into ieu 2021-01-27 06:40:26 -05:00
Noah Boorstin
1195ebb468 show instruction assembly in waveform 2021-01-26 12:34:12 -05:00
Noah Boorstin
6c567aab9a Update busybear tests to conform to new directory structure 2021-01-25 20:37:18 -05:00
Noah Boorstin
e92db93939 Fixed mem write checking 
now passes around 50 instructions!
 2021-01-25 20:07:08 -05:00
Noah Boorstin
358393a1da fix speculation ignoring for PC fetching 2021-01-25 20:07:06 -05:00
David Harris
1d9c741c00 Reset Vector moved to config file 2021-01-25 15:57:36 -05:00
David Harris
fa18052348 Added test configurations 2021-01-25 11:28:43 -05:00
Noah Boorstin
aea1c0cd2e small busybear testbench changes 2021-01-24 20:43:47 -05:00
Noah Boorstin
e7288716f7 Linux testbench works now 
Added parameterized PCSTART to allow compatibility between imperas and busybear tests
Hopefully we are done with the "busybear" branch, please don't use it for future work
 2021-01-24 17:10:00 -05:00
Noah Boorstin
12a8f83025 Merge branch 'busybear' into main 
Merging busybear testbench into main, keeping main edits of wally src
 2021-01-24 16:28:36 -05:00
Noah Boorstin
b08b86f561 sucessfully simulate first 30 instructions 
still need to find a better solution to InstrAccessFault/DataAccessFault though
 2021-01-23 19:01:44 -05:00
Noah Boorstin
a75d7e4555 More linux testbench fixes 
So I'm super sorry for accidently overwriting the commits this morning
Need to be more careful with force pushing :(

This fixes the problem with CSRR somehow, by tying InstrAccessFaultF and
DataAccessFaultM to zero for now. I feel like this is not a good solution
and will cause problems in the future, but for the start it seems to work for now.
I'm fair certain we need these to accurately simulate to do linux properly.

Anyway, this super hackish solution is in place for now, now on to ignoring mispredicted reads
 2021-01-23 17:52:05 -05:00
Noah Boorstin
be62987dec Linux test now gets through first 8 instructions! 
fixes the python parser:
  get the value, not function name, of PC
  only write changes to registers instead of registers every cycle
temporarilly NOP out CSRR instruction (with the canonical NOP), that was breaking this
dont stop on errors, print them prettier
 2021-01-23 16:46:45 -05:00
David Harris
3905e77e54 Replaced parameters with macros for XLEN, MISA, other configuration, and renamed wally-params.sv to wally-config.vh 2021-01-23 10:48:12 -05:00
David Harris
170c88bc06 Cleaned up regfile x0 tied to gnd 2021-01-23 10:22:20 -05:00
David Harris
93f8c6f29e Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-01-23 10:19:28 -05:00
David Harris
6b9c6223be Initial checkin of UART 2021-01-23 10:19:09 -05:00
Noah Boorstin
18f6aa716e slightly more info on errors, add instruction decoding 2021-01-22 21:14:45 -05:00
Noah Boorstin
3b16766fde change how testbench reads data 
we're not sure if this is a good idea, but for now, we broke things up into 3 seperate
files, each read seperately. One for pc and instructions, one for registers, and one for
memory reads. Each is scrolled through essentially independantly: new pc data is read and checked
whenever pc changes, new register data is checked whenever any register changes, and a new mem
read value is gotten whenever DataAdrM or MemRWM changes and MemRWM is not zero. I'm not super
sure about the last one. Currently it looks like things should be working, but it goes wrong after,
like, 3 instructions.
 2021-01-22 20:27:01 -05:00
Noah Boorstin
4c51a20634 change regfile to not hold state of x0 2021-01-22 15:12:33 -05:00
Noah Boorstin
2c8571aaac change regfile to not hold state of x0 2021-01-22 15:11:55 -05:00
Noah Boorstin
e45f452f25 Start adding register checking 
I'm now realizing we need to simulate loads, or else these will all be wrong
 2021-01-22 15:11:13 -05:00
Noah Boorstin
8104b93900 load instructions from file line by line 2021-01-22 14:11:17 -05:00
Noah Boorstin
40f0b1e328 More testbench setup work 
- Copy bare-bones testbench from E85
   - have testbench instantiate a wallypipelinedhart so we can simulate memory/peripherals easier
 - Create .gitignore for vsim files
 - Make PC reset a macro, change to 0x1000 to conform to the bootloader

I don't know a good way to put the linux register trace file we're generating on git,
since its both nontrivial to make and way to big to keep in a git repo

for now it lives in /mnt/scratch/riscv_testbench/
 2021-01-21 17:55:05 -05:00
Noah Boorstin
795359576b copy testbench to modify for busybear 2021-01-21 16:17:34 -05:00
David Harris
f32c70e866 testgen-ADD-SUB working and testbench simualtes with new vectors for rv32 and rv64 2021-01-20 01:04:28 -05:00
David Harris
e3a7fcb5f1 testgen-ADD-SUB initial untested 2021-01-19 22:58:56 -05:00
David Harris
5479342d00 Initial testgen checkin 2021-01-19 13:09:56 -05:00
David Harris
6595c7827f Changed to . notation for instantiation, cleaned up dmem 2021-01-18 20:16:53 -05:00
David Harris
46d02d3818 cleanup 2021-01-18 00:42:40 -05:00
David Harris
18fe5c7c93 Sped up exe2memfile.pl 2021-01-17 18:45:19 -05:00
David Harris
df4d79f8f8 Added exe2memfile.py 2021-01-16 15:09:06 -05:00
David Harris
bfc86182a0 Added GPIO 2021-01-15 00:25:56 -05:00
David Harris
821fb20746 Added GPIO 2021-01-15 00:19:31 -05:00
David Harris
fd01e27a48 Initial Checkin 2021-01-14 23:37:51 -05:00