Ross Thompson
296da4f437
FPGA test bench and test program.
2021-09-12 20:41:54 -05:00
David Harris
dd1e7548ed
Modified rxfull determination in UART, started division
2021-09-12 20:00:24 -04:00
Ross Thompson
be864abcc5
Fixed bug with or_rows.
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If ROWS == 1 then the output was always X. Fixed by adding if to check if ROWS==1.
2021-09-11 15:51:11 -05:00
Ross Thompson
570aab4275
Fixed FPGA synthesis bug in the fpdiv fsm. Was creating latches.
2021-09-11 15:40:27 -05:00
Ross Thompson
5744796431
Fixed dcache to prevent latches in FPGA synthesized design.
2021-09-11 12:03:48 -05:00
Ross Thompson
6f4542f063
Third attempt at fixing the write enables for the icache cacheway.
2021-09-09 15:08:10 -05:00
Ross Thompson
6965bde95c
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
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Refixed some bit width issues in the icache.
2021-09-09 12:44:02 -05:00
Ross Thompson
1d370ca71f
fixed some lint bugs.
2021-09-09 12:38:57 -05:00
bbracker
4a17af5b7c
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-09-09 13:22:31 -04:00
bbracker
3a520cb540
changed fix_mem to not use hardcoded file names
2021-09-09 13:22:24 -04:00
David Harris
12bd351edf
Lint cleaning, riscv-arch-test testing
2021-09-09 11:05:12 -04:00
David Harris
9480f8efdb
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-09-08 16:00:12 -04:00
David Harris
118cb7fb87
Added testbench-arch for riscv-arch-test suite
2021-09-08 15:59:40 -04:00
Ross Thompson
86fbe2a654
Changed configs to support 4 ways set associative caches.
2021-09-08 12:52:49 -05:00
Ross Thompson
6550f38af9
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2021-09-08 12:47:03 -05:00
Ross Thompson
a15d6c1c96
Slight modification to wave file.
2021-09-08 10:40:46 -05:00
bbracker
bb84354a47
fixed bug where M mode was sensitive to S mode traps
2021-09-07 19:14:39 -04:00
bbracker
f8272c45d1
make testbench successfully deactivate TimerIntM so as to create a nice pulse
2021-09-07 15:36:47 -04:00
Ross Thompson
49e75d579c
Set associate icache working, but way 0 is never written.
2021-09-07 12:46:16 -05:00
bbracker
da9a366d20
No longer forcing CSRReadValM because that can feedback to corrupt some CSRs
2021-09-06 22:59:54 -04:00
Ross Thompson
05455f8392
Changed name of memory in icache.
2021-09-06 20:54:52 -05:00
bbracker
502ddb3bb5
help in case a script is run accidentally
2021-09-06 16:23:45 -04:00
bbracker
b3bc3cf6d0
modified testbench to not allow Wally to generate its own interrupts (because of fundamental interrupt imprecision limitations)
2021-09-04 19:49:26 -04:00
bbracker
c463f177e9
restore functionality of being able to turn on waves at a certain instruction count; restore linux-waves.do because wave.do seems to be in disrepair
2021-09-04 19:45:04 -04:00
bbracker
135404174e
switching over to hopefully more consistent QEMU simulated clock
2021-09-04 19:43:39 -04:00
bbracker
9fde9f09f2
replace triple gdb breakpoint continue with a double breakpoint ignore in hopes of improving parsing
2021-09-04 19:41:55 -04:00
James E. Stine
02a1fda650
Not sure I understand the Misaligned hptw - seems like a bug and should be L1_ADR instead of L0_ADR
2021-09-03 10:26:38 -05:00
bbracker
f1a39b467d
output trace to linux-testvectors folder
2021-09-01 17:37:46 -04:00
Ross Thompson
2968623f9a
Partial multiway set associative icache.
2021-08-30 10:49:24 -05:00
Katherine Parry
70f332fe2f
FMA cleanup
2021-08-28 10:53:35 -04:00
Ross Thompson
6a9fa2fae3
Fixed bugs I introduced to the icache.
2021-08-27 15:00:40 -05:00
Ross Thompson
d433db3048
Renamed PCMux (icache) to SelAdr to match dcache.
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Removed unused cache files.
2021-08-27 11:14:10 -05:00
Ross Thompson
96cbd8e785
Modified icache to no longer need StallF in the PCMux logic. Instead this is handled in the icachefsm.
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One downside is it increases the icache complexity. However it also fixes an untested bug. If a region
was uncacheable it would have been possible for the request to be made multiple times. Now that is
not possible. Additionally spills were oscillating between the spill hit states without this change.
The impact was 'benign' as the final spilled instruction always had the correct upper 16 bits.
2021-08-27 11:03:36 -05:00
Ross Thompson
4ace7fe946
Renamed ICacheCntrl to icachefsm.
2021-08-26 15:57:17 -05:00
Ross Thompson
d6ff89b7e6
Swapped out the icachemem for cacheway. cacheway is modified to optionally support dirty bits.
2021-08-26 15:43:02 -05:00
Ross Thompson
aea7afead6
Finished moving data path logic from the ICacheCntrl.sv to icache.sv.
2021-08-26 13:06:24 -05:00
Ross Thompson
86fc632790
Moved data path logic from icacheCntrl to icache.
2021-08-26 10:58:19 -05:00
Ross Thompson
fd28c4f556
Removed unused logic in icache.
2021-08-26 10:49:54 -05:00
Ross Thompson
e4bbd3bbc7
Converted the icache type from logic to state type.
2021-08-26 10:41:42 -05:00
Ross Thompson
91fba80a6d
Additional cleanup of ahblite.
2021-08-25 22:53:20 -05:00
Ross Thompson
8836d91896
Removed amo logic from ahblite. Removed many unused signals from ahblite.
2021-08-25 22:45:13 -05:00
Ross Thompson
596bc138bc
Forgot to include a few files in the last few commits.
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Also reorganized the dcache by read cpu path, write cpu path, and bus interface path.
Changed i/o names on subwordread to match signals in dcache.
2021-08-25 22:30:05 -05:00
Ross Thompson
0530047f53
Moved dcache fsm to separate module.
2021-08-25 21:37:10 -05:00
Ross Thompson
d23b860c96
Moved LRU and storage for the LRU into a single module. Also found a subtle bug with the update address used to write the cache's memory.
...
This was correct for the LRU but incorrect for the data, tag, valid, and dirty storage.
2021-08-25 21:09:42 -05:00
Ross Thompson
c5e2443298
Replaced dcache generate ORing with or_rows.
2021-08-25 13:46:36 -05:00
Ross Thompson
e5336f4ee1
Rename of DCacheMem to cacheway.
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simplified dcache names.
2021-08-25 13:33:15 -05:00
Ross Thompson
e9a1dc90f6
Removed generate around the dcache memories.
2021-08-25 13:27:26 -05:00
Ross Thompson
2ccf479354
Moved more logic inside the dcache memory.
2021-08-25 13:17:07 -05:00
Ross Thompson
35e57a7c61
partial dcache reorg.
2021-08-25 12:42:05 -05:00
Ross Thompson
983524e81b
Updated linux test bench documenation and scripts.
2021-08-25 10:54:47 -05:00
