Thomas Fleming
eda5a267ee
Implement PMP checker and revise PMA checker
2021-05-03 17:37:42 -04:00
Thomas Fleming
6e5fc107d9
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-04-29 16:30:00 -04:00
ushakya22
9dfbfd5772
fix to pcm bug
2021-04-29 15:21:08 -04:00
Thomas Fleming
5f2bccd88f
Clean up PMA checker and begin PMP checker
2021-04-29 02:20:39 -04:00
Ross Thompson
6e803b724e
Merge branch 'tests' into icache-almost-working
2021-04-25 21:25:36 -05:00
Thomas Fleming
4bae666fa1
Implement virtual memory protection
2021-04-21 19:58:36 -04:00
Domenico Ottolia
0c307d2db1
Fix synthesis warnings for privileged unit (replace 'initial' settings)
2021-04-20 17:57:56 -04:00
Domenico Ottolia
65abe13f4f
Cause an Illegal Instruction Exception when attempting to write readonly CSRs
2021-04-08 05:12:54 -04:00
Ross Thompson
9172e52286
Corrected a number of bugs in the branch predictor.
...
Added performance counters to individually track
branches; jumps, jump register, jal, and jalr; return.
jump and jump register are special cases of jal and jalr.
Similarlly return is a special case of jalr.
Also added counters to track if the branch direction was wrong,
btb target wrong, or the ras target was wrong.
Finally added one more counter to track if the BP incorrectly predicts
a non-cfi instruction.
2021-03-31 11:54:02 -05:00
Thomas Fleming
7126ab7864
Complete basic page table walker
2021-03-30 22:19:27 -04:00
Ross Thompson
a99c0502e5
Fixed bugs with the csr interacting with StallW. StallW is required to pervent updating a csr. Now have a working branch predictor and performance counters to track the number of commited branches and mispredictions.
2021-03-24 15:56:55 -05:00
Shreya Sanghai
1d6a2989ed
PC counts branch instructions
2021-03-23 14:25:51 -04:00
Shreya Sanghai
08e9149e20
made performance counters count branch misprediction
2021-03-16 11:24:17 -04:00
Thomas Fleming
7e11317a2d
Export SATP_REGW from csrs to MMU modules
2021-03-05 01:22:53 -05:00
David Harris
cf03afa880
Eliminated flushing pipeline on CSR reads
2021-02-26 17:00:07 -05:00
David Harris
c52a99ce2d
Fixed fetch stall after jump in bus unit
2021-02-23 09:08:57 -05:00
David Harris
37dba8fd26
More memory interface, ALU testgen
2021-02-15 10:10:50 -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
396cea1ea7
Reorganized src hierarchically
2021-01-30 11:50:37 -05:00
