Ross Thompson
4a7ebb3757
Cache cleanup write enables.
2022-02-08 17:52:09 -06:00
Ross Thompson
4273775a2b
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-02-08 14:22:19 -06:00
David Harris
1479762ae9
RAM simplification
2022-02-08 20:15:23 +00:00
Ross Thompson
e2191e3637
Preparing to make a major change to the cache's write enables.
2022-02-08 09:47:01 -06:00
Ross Thompson
5c9e23527d
cachefsm cleanup.
2022-02-07 22:09:56 -06:00
Ross Thompson
da2dca9816
Removed VDWriteEnable.
2022-02-07 21:59:18 -06:00
Ross Thompson
161f907cae
more partial cleanup of fsm and write enables.
2022-02-07 17:41:56 -06:00
Ross Thompson
359a23237d
Progress towards simplifying the cache's write enables.
2022-02-07 17:23:09 -06:00
Ross Thompson
188fe28691
more cleanup.
2022-02-07 13:29:19 -06:00
Ross Thompson
9510a33c15
More cachefsm cleanup.
2022-02-07 13:19:37 -06:00
Ross Thompson
708e0cf183
More cachefsm cleanup.
2022-02-07 12:30:27 -06:00
Ross Thompson
5539a5fa6f
More cachefsm cleanup.
2022-02-07 11:16:20 -06:00
Ross Thompson
6668956351
More cachefsm cleanup.
2022-02-07 11:12:28 -06:00
Ross Thompson
5536e3ca90
More cachefsm cleanup.
2022-02-07 10:54:22 -06:00
Ross Thompson
529d8b629a
Cache cleanup.
2022-02-07 10:43:58 -06:00
Ross Thompson
41a79556e0
More cachfsm cleanup.
2022-02-07 10:33:50 -06:00
David Harris
99f3d7a7f6
Reverted cache change
2022-02-07 14:47:20 +00:00
David Harris
45dc9c1ae6
Cache syntax cleanup
2022-02-07 14:43:24 +00:00
Ross Thompson
0b66106925
More cachefsm cleanup.
2022-02-06 21:50:44 -06:00
Ross Thompson
dd6baa9ed4
started cachefsm cleanup.
2022-02-06 21:39:38 -06:00
Ross Thompson
d21be9d998
Added config to allow using the save/restore or replay implementation to handle sram clocked read delay.
2022-02-04 23:49:07 -06:00
Ross Thompson
ea84211ff9
Removed unused ports from caches and buses.
2022-02-04 22:52:51 -06:00
Ross Thompson
290430cda8
Moved the sub cache line read logic to lsu/ifu.
2022-02-04 20:42:53 -06:00
Ross Thompson
725852362e
Got separate module for the sub cache line read.
2022-02-04 20:23:09 -06:00
Ross Thompson
cdd599e340
Second optimization of save/restore.
2022-02-04 14:35:12 -06:00
Ross Thompson
459054900f
Optimization of cache save/restore.
2022-02-04 14:21:04 -06:00
Ross Thompson
7c1f7e335c
Working first cut of the cache changes moving the replay to a save/restore.
...
The current implementation is too expensive costing (tag+linelen)*numway flip flops and muxes.
2022-02-04 13:31:32 -06:00
David Harris
ee3300bcd2
sram1rw cleanup
2022-02-03 18:03:22 +00:00
David Harris
97d31cec21
sram1rw cleanup
2022-02-03 17:50:23 +00:00
David Harris
f9dd79d3e3
cachereplacementpolicy cleanup
2022-02-03 17:19:14 +00:00
David Harris
034ff5462c
cachereplacementpolicy cleanup
2022-02-03 17:18:48 +00:00
David Harris
65f3bf4e0a
cacheway cleanup
2022-02-03 16:52:22 +00:00
David Harris
eef04eed84
cacheway cleanup
2022-02-03 16:33:01 +00:00
David Harris
4d09510af9
cacheway cleanup
2022-02-03 16:07:55 +00:00
David Harris
7f237220dd
cacheway cleanup
2022-02-03 16:00:57 +00:00
David Harris
a6708ed887
cache cleanup
2022-02-03 15:36:11 +00:00
Ross Thompson
42ef1e22e5
1. Modified the cache so it can handle the reset delay internally. This removes the mux from the IFU.
...
2. Removed the write address delay from simpleram.sv
3. Fixed rv32tim and rv32ic mode to handle missalignment correctly.
4. Added imperas32i and imperas32c to rv32tim mode.
2022-01-26 18:23:39 -06:00
David Harris
325724f556
LSU Cleanup
2022-01-15 01:11:17 +00:00
David Harris
120fb7863f
Reformatted MIT license to 95 characters
2022-01-07 12:58:40 +00:00
David Harris
c97572d209
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2022-01-07 05:39:16 +00:00
David Harris
2a64b1bc95
Used .* in wrapper
2022-01-07 05:23:42 +00:00
Ross Thompson
0fddceffa6
Modified the mmu to not mux the lower 12 bits of the physical address and instead directly
...
assign from the input non translated virtual address. Since the lower bits never change there is
no reason to place these lower bits on a longer critical path.
The cache and lsu were previously using the lower bits from the virtual address rather than
the physical address. This change will allow us to keep the shorter critical path and
reduce the complexity of the lsu, ifu, and cache drawings.
2022-01-06 23:19:09 -06:00
Ross Thompson
008ac20a43
Minor optimization to cache replacement.
2022-01-06 17:19:14 -06:00
Ross Thompson
e1db967417
Clean up of cachefsm.
2022-01-06 16:32:49 -06:00
Ross Thompson
d30ad136f3
cleaned up cacheway and sram1rw.sv. also noticed possible bug in sram1rw.sv.
2022-01-05 22:56:18 -06:00
Ross Thompson
365b2715ed
More name cleanup in cache.
2022-01-05 22:37:53 -06:00
Ross Thompson
77efcad15b
Changed names of address in caches.
...
Removed old cache files.
2022-01-05 22:19:36 -06:00
Ross Thompson
8d33bf0b4a
Slower but correct implementation of flush.
2022-01-05 16:57:22 -06:00
Ross Thompson
bd901cd125
Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main
2022-01-05 14:15:27 -06:00
Ross Thompson
49eea2add5
Fixed bug with flush dirty not cleared in the correct cache line.
2022-01-05 14:14:01 -06:00
