Thomas Fleming
303c2c4839
Implement support for superpages
2021-04-08 02:44:59 -04:00
Thomas Fleming
6b43381c38
Comment out fpu from hart until module exists
2021-04-03 22:34:11 -04:00
Thomas Fleming
dbd5a4320e
Merge branch 'mmu' into main
...
Conflicts:
wally-pipelined/src/wally/wallypipelinedhart.sv
2021-04-03 22:12:52 -04:00
Thomas Fleming
1cbdaf1f05
Fix extraneous page fault stall
2021-04-03 21:28:24 -04:00
Katherine Parry
d7b1379ab8
Integrated FPU
2021-04-03 20:52:26 +00:00
James E. Stine
cff08adc3a
Added some updates to divider - still not working all the time. Still a bug with signals within muldiv - specificaly MultDivE being modified during Execute stage. Seems to be triggered by ahblite signal.
2021-04-02 06:27:37 -05:00
Thomas Fleming
fdb20ee1cf
Implement sfence.vma and fix tlb writing
2021-04-01 15:55:05 -04:00
ushakya22
6b9ae41302
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-03-30 15:25:07 -04:00
Thomas Fleming
e3900bd0fa
Finish finite state machines for page table walker
2021-03-25 02:48:40 -04:00
Shreya Sanghai
1d6a2989ed
PC counts branch instructions
2021-03-23 14:25:51 -04:00
Thomas Fleming
7f7597e667
Connect tlb, pagetablewalker, and memory
2021-03-18 14:35:46 -04:00
Thomas Fleming
1294235837
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
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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
Thomas Fleming
2e2eb5839f
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-03-05 13:35:44 -05:00
Thomas Fleming
7e11317a2d
Export SATP_REGW from csrs to MMU modules
2021-03-05 01:22:53 -05:00
Ross Thompson
66e84f3a2c
Merge branch 'bp' into main
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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
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
David Harris
2543c29839
Initial (untested) implementation of lr and sc
2021-03-01 00:09:45 -05:00
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
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
David Harris
d00d42cf9a
Merged bus into main
2021-02-25 00:28:41 -05:00
David Harris
f5e9c91193
All tests passing with bus interface
2021-02-24 07:25:03 -05:00
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
5df7e959f3
Integrated the branch predictor into the hardward. Not yet working.
2021-02-17 22:19:17 -06:00
David Harris
8dec69c2ce
Added MUL
2021-02-15 22:27:35 -05:00
David Harris
2357f5513b
Debugging instruction fetch
2021-02-09 11:02:17 -05:00
David Harris
3551cc859b
Data memory bus integration
2021-02-07 23:21:55 -05:00
David Harris
d56d7a75a6
Rename ifu/dmem/ebu signals to match uarch diagram
2021-02-02 15:09:24 -05:00
David Harris
4fbb5f0f1b
Cleaned up hazard interface
2021-02-02 13:53:13 -05:00
David Harris
aad1d3d7dd
Moved writeback pipeline registers from datapth into DMEM and CSR
2021-02-02 13:02:31 -05:00
David Harris
9d7e242596
Moved fpu to temporary location to fix compile and cleaned up interface formatting
2021-02-01 23:44:41 -05:00
David Harris
056b147b13
Renamed DCU to DMEM
2021-02-01 18:52:22 -05:00
David Harris
396cea1ea7
Reorganized src hierarchically
2021-01-30 11:50:37 -05:00
