Ross Thompson
b2676e1dd4
Somehow the imperas files spilled into the main branch.
2023-01-17 15:39:34 -06:00
sarah-harris
9fb7c8132a
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
3e17bfbc53
Removed Imperas tests from regression
2023-01-16 07:01:07 -08:00
David Harris
fdb839edcb
Makefile and setup cleanup
2023-01-15 20:27:12 -08:00
Ross Thompson
9a180f88f7
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
8ee80c5d54
Created separate imperas testbench.
...
Resolved logger issue with the duplicated instructions after commit.
2023-01-12 12:07:07 -06:00
Ross Thompson
97feea2f48
Possibly working speculative global history.
2023-01-08 23:46:53 -06:00
Ross Thompson
a35fb3addd
core part of global history works now. forwarding is still broken.
2023-01-08 23:35:02 -06:00
Ross Thompson
e34f80db2f
More branch predictor cleanup.
2023-01-05 17:19:27 -06:00
Ross Thompson
3637067ace
Officially added global history with speculation to types of branch predictors.
2023-01-05 14:04:09 -06:00
Ross Thompson
f8c656f1e0
Simiplified global history branch predictor.
2023-01-04 23:41:55 -06:00
David Harris
214ef40b1c
Moved floating-point tests earlier in Wally config
2022-12-25 22:31:20 -08:00
Ross Thompson
424012ce97
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-12-23 19:51:23 -06:00
Katherine Parry
66510f38af
reworked negitive sticky bit handeling in fma
2022-12-23 17:01:34 -06:00
Ross Thompson
b5a85b55f1
Reverted to naming IFUStallD to IFUStallF and LSUStallW to LSUStallM. These are generated in the F and M stage.
...
Generate WFIStallM in the privileged unit rather than generate in hazard.
Cleaned up the hazard cause logic to be consistent across all causes.
2022-12-23 15:10:37 -06:00
David Harris
fe5b9081d9
Removed unused signals from FPU
2022-12-23 00:18:39 -08:00
David Harris
a185f563f2
Clean up unused FPU signals
2022-12-22 23:53:09 -08:00
Ross Thompson
6b105bd217
Renamed IFU and LSU stalls.
2022-12-22 21:56:33 -06:00
Ross Thompson
942acb354e
Closing in on icache flushed by FlushD rather than TrapM.
2022-12-22 20:19:09 -06:00
Ross Thompson
7a0b3d4fc6
Wavefile updates.
2022-12-22 19:45:02 -06:00
Ross Thompson
968e174d68
Changes to wave file.
2022-12-21 08:41:47 -06:00
David Harris
88ee834c97
Converted tvecmux to structural
2022-12-20 16:24:04 -08:00
David Harris
9133b3a7a4
FPU remove unused signals
2022-12-20 14:43:30 -08:00
Ross Thompson
c3b77926d5
I think I finally fixed a long hidden bug in the replacement policy. The figures in the textbook are correct. There was small bug in the rtl.
2022-12-18 18:30:35 -06:00
Ross Thompson
9d1cb9337e
Updated tests for fpga and BP.
2022-12-18 16:24:26 -06:00
Ross Thompson
5acdf541b9
Finally fixed the lru bug. It was actually a flush bug all along. At the end of flush writeback FlushAdr is incremented so clearly the dirty bit then clears the wrong set. Must either take an additional cycle to clear dirty and then change the address or clear the dirty bit before the cache bus acknowledgment. Changed it to clear at begining of that line's writeback before actually writting back.
2022-12-17 23:47:49 -06:00
Ross Thompson
9849983348
At long last found the subtle bug in the LRU.
...
Since the LRU memory is two ports, 1 read and 1 write, a write in cycle 1 to address x should not
forward data to a read from address y in cycle 2.
A read form address x in cycle 2 would still require forwarding.
2022-12-17 10:03:08 -06:00
Ross Thompson
3132246a46
Oups found a bug with the new flush cache states.
2022-12-16 16:22:40 -06:00
Ross Thompson
91e64a0d67
Cleanup of cache flush fsm enhancement.
2022-12-16 15:36:53 -06:00
Ross Thompson
f04ca5cb6a
Fixed regression-wally to correct remove and mkdir wkdir.
2022-12-16 12:51:21 -06:00
David Harris
a8126458f6
Refactored stalls and flushes, including FDIV flush with FlushE
2022-12-15 10:56:18 -08:00
David Harris
97a432570a
Regression delete wkdir files to prevent spurious failures
2022-12-15 10:24:58 -08:00
David Harris
3a8602523e
FPU test list
2022-12-01 10:18:36 -08:00
Ross Thompson
fa22484cfe
Reverted the IROM/DTIM address range modelsim assignment.
2022-11-30 17:13:33 -06:00
Ross Thompson
2f582cd91f
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-30 13:30:37 -06:00
Ross Thompson
de538d1c2f
Intermediate commit. Replaced flip flop dirty bit array with sram.
2022-11-30 00:08:31 -06:00
cturek
10c2d45888
div tests in sim-wally
2022-11-30 02:32:04 +00:00
Ross Thompson
fbf543bf57
Updated HPTW to route access faults generated by the HPTW to the original access type either instruction access fault, load access fault or store access fault.
2022-11-29 17:19:31 -06:00
Ross Thompson
96cc4c7ebe
Cleaned up the wavefile and added logic to linearly populate the LRU before all ways are filled.
2022-11-29 14:09:48 -06:00
Ross Thompson
78acd40424
Renamed signals in the cache.
2022-11-29 10:52:40 -06:00
Ross Thompson
6dd5668d21
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-11-22 18:07:32 -06:00
cturek
78c2ce5649
Updated testbench/wave for fdivsqrt new start signals
2022-11-22 22:22:26 +00:00
Ross Thompson
4e926ba4cf
Signal name changes for LRU.
2022-11-20 22:31:36 -06:00
Ross Thompson
13e6f7d80b
Changed names of cache signals.
2022-11-13 21:36:12 -06:00
Ross Thompson
788ae5fb18
Updated wave file.
2022-11-13 21:34:45 -06:00
Ross Thompson
d912981ec9
Wavefile update.
2022-11-10 15:48:06 -06:00
Ross Thompson
51408c620e
Found a way to remove the interlock fsm. Dramatically reducing the complexity of virtual memory and page table walks.
2022-10-23 13:46:50 -05:00
Ross Thompson
d6f907f444
Sort of solved the bit width warning for dtim, irom ranges.
2022-10-19 10:42:19 -05:00
David Harris
aa5fe52407
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-10-14 17:33:36 -07:00
David Harris
51b702fa17
Removed unused FPU waves
2022-10-14 17:33:32 -07:00
