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bfd238a4fc
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1565 Commits

Author SHA1 Message Date
Ross Thompson
bfd238a4fc Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-30 13:30:37 -06:00
Ross Thompson
813b2963fb More optimization. 2022-11-30 11:26:48 -06:00
Ross Thompson
da7b13ba0a Removed reset on dirty cache bits. 2022-11-30 11:04:37 -06:00
Ross Thompson
5e5cca6ae1 Turns out the merge of dirty and tag bits is complicated by the need to have byte write enables rather than bit write enables. Putting on hold for now. 2022-11-30 11:01:25 -06:00
Ross Thompson
ac3e02692b Preparing to merge dirty and tag srams. 2022-11-30 10:40:48 -06:00
Ross Thompson
8692ccbafb Intermediate commit. Replaced flip flop dirty bit array with sram. 2022-11-30 00:08:31 -06:00
cturek
e28a6901a9 div tests in sim-wally 2022-11-30 02:32:04 +00:00
Ross Thompson
e3577781b0 Optimization of cacheway. 2022-11-29 18:30:47 -06:00
Ross Thompson
1e2180ef98 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
5e550fe5e6 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-29 14:57:38 -06:00
Ross Thompson
9e4166407b Fixed a bug with the replacement policy. It was updating the wrong set on load hits. 2022-11-29 14:51:09 -06:00
Ross Thompson
179d321683 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
Kip Macsai-Goren
66fcb2bffe Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-29 10:43:44 -08:00
Kip Macsai-Goren
26b4147f40 added failing satp invalid tests to regression 2022-11-29 10:43:38 -08:00
Ross Thompson
ed54959378 Renamed signals in the cache. 2022-11-29 10:52:40 -06:00
Ross Thompson
4e52755c9f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-22 18:07:32 -06:00
cturek
7140642c93 Almost done with Int division 2022-11-22 22:22:59 +00:00
cturek
3fbccbf119 Updated testbench/wave for fdivsqrt new start signals 2022-11-22 22:22:26 +00:00
Ross Thompson
1736983557 Cleanup cacheLRU. 2022-11-22 14:59:01 -06:00
Ross Thompson
2ae7b555be File name change for cachereplacement policy to cacheLRU 2022-11-20 22:35:02 -06:00
Ross Thompson
84679c0062 Signal name changes for LRU. 2022-11-20 22:31:36 -06:00
Ross Thompson
736a30afac Missing a file. Last commit will fail. 2022-11-17 17:45:41 -06:00
Ross Thompson
a1f39a8186 Finally have the correct replacement policy implementation. 2022-11-17 17:36:37 -06:00
Ross Thompson
ac0f6ddb7b I found the issue with the cache changes. FlushW is not asserted for all TrapM. Ecall and Ebreak don't flush the W stage. However the ifu's bus controllable must disable the BusRW for all traps. 2022-11-16 15:38:37 -06:00
Ross Thompson
9b2236b2a0 Progress on the cache replacement policy implementation. 2022-11-16 15:35:34 -06:00
Ross Thompson
cf964e30fb Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-16 12:42:29 -06:00
Ross Thompson
5f7b0b8a9b Oups found a bug with my cache changes. I took TrapM out of the logic path for selecting the cache's address CAdr (previously RAdr) to improve the critical path. This is fine for the dcache because both the E and M stages are flushed. However for the ICache only F is flushed. PCNextF is valid and points to XTVEC so the cache must take NextAdr rather than PAdr as CAdr. 2022-11-16 12:36:58 -06:00
David Harris
bc3b783543 comment cleanup 2022-11-16 10:23:20 -08:00
David Harris
ddba68605e Renamed DivBusy to FDivBusyE in FPU 2022-11-16 10:13:27 -08:00
David Harris
e008d663f4 Moved DivStartE to fdivsqrtfsm 2022-11-16 10:00:07 -08:00
Ross Thompson
900a326a23 Created improved cache replacement policy implementation. This version is generic and works for any number of ways. Not fully tested and is currently commented out. 2022-11-16 11:15:34 -06:00
cturek
6fe35ee0e3 Attempt to fix FPGA synth errors 2022-11-15 20:34:28 +00:00
cturek
1c49d4a1c2 Fixed lint errors in postprocessing 2022-11-15 20:31:23 +00:00
Ross Thompson
ec6517fadd Fixed a bug with the hptw configuration not correctly avoiding UPDATE_PTE state. 2022-11-14 16:02:20 -06:00
Ross Thompson
f03d5d3ac8 Renamed Flush to FlushStage in the cache. 2022-11-14 14:11:05 -06:00
Ross Thompson
1bf838fa6b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-14 13:48:56 -06:00
David Harris
895ee3d773 Removed comment about nonexistent possible bug 2022-11-14 09:56:33 -08:00
David Harris
cae3e00751 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-14 09:52:24 -08:00
David Harris
79d416537a Removed comment about nonexistent possible bug 2022-11-14 09:52:21 -08:00
Ross Thompson
1a00e7bbee Changed names of cache signals. 2022-11-13 21:36:12 -06:00
Ross Thompson
5800dfde60 Updated wave file. 2022-11-13 21:34:45 -06:00
cturek
0b2c8b9d46 Added majority of combinational logic 2022-11-14 00:06:38 +00:00
cturek
74f58b5d89 Added Quotient/Remainder calcs to normal termination 2022-11-13 23:44:34 +00:00
cturek
b3bfdbad18 Added flops for n and m, added B=0 signal 2022-11-13 23:02:43 +00:00
cturek
9c70ab917c Added A<B signal to fdivsqrt, started postprocessing merge 2022-11-13 22:40:26 +00:00
Ross Thompson
a27b81ef90 Changed IMWriteDataM to IHWriteDataM. 2022-11-13 12:27:48 -06:00
Ross Thompson
3ac6514856 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
hazard was not a straight forward merge.  I changed the way the LSU and IFU generate IFUStallF and LSUStallM.  They need to be suppressed by TrapM now.
 2022-11-13 12:25:22 -06:00
David Harris
0ce3cc393a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-13 04:23:26 -08:00
David Harris
157f816cd3 HPTW cleanup 2022-11-13 04:23:23 -08:00
David Harris
0502b8ea4d Comments about division hazards 2022-11-13 04:17:37 -08:00