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55 Commits

Author SHA1 Message Date
Ross Thompson
3eeecd2f27 Merge branch 'boot' into mergeBoot 
Merges Jacob's new sdc controller into wally.
 2023-07-21 17:43:45 -05:00
Ross Thompson
9ba3113e9c Improved critical path. 2023-07-19 14:59:37 -05:00
Ross Thompson
05b1cce2d1 RTL changes for Xcelium. 2023-07-11 10:51:02 -05:00
Ross Thompson
a011b7d591 Merge branch 'testbench-params2' 2023-06-15 15:31:13 -05:00
Ross Thompson
e431f90cf3 Found a whole bunch of files still using the old `define configurations. 2023-06-15 13:09:07 -05:00
Harshini Srinath
794d080aa3
Update pmpchecker.sv 
Program clean up
 2023-06-12 18:44:36 -07:00
Harshini Srinath
5a7ee9f1c0
Update pmpadrdec.sv 
Program clean up
 2023-06-12 18:41:47 -07:00
Harshini Srinath
ed1d80e37b
Update pmachecker.sv 
Program clean up
 2023-06-12 18:39:36 -07:00
Harshini Srinath
91836a6cf3
Update mmu.sv 
Program clean up
 2023-06-12 18:36:04 -07:00
Harshini Srinath
3e969c84c7
Update hptw.sv 
Program clean up
 2023-06-12 18:31:38 -07:00
Harshini Srinath
3a8631854f
Update adrdecs.sv 
Program clean up
 2023-06-12 18:22:32 -07:00
Harshini Srinath
ace24cb879
Update adrdec.sv 
Program clean up
 2023-06-12 17:28:21 -07:00
Ross Thompson
e56497101a Updated source code to be compatible with verilator 5.011 for lint only. 2023-05-31 10:44:23 -05:00
Ross Thompson
3c94c186db Possible fix for Linux bug and bug 203. ImperasDV mismatches in linux boot around 571M instructions after the login prompt. 
This bug occurs when there are back to back HPTW requests and the first generates an access fault during the walk. The old implementation uses a delayed version of the fault to prevent the HTPW fsm from transitioning out of the IDLE state.  Because the first request generates the fault and the second request is pipelined the second request appears as if it also faults so the FSM does not perform the walk.
The new implementation adds a FAULT state.  When the HPTW generates an access fault it transitions to this state removes the HPTWStall and then transitions to IDLE.  There may still be a remaining bug here if the pipeline is stalled for another reason.  However I don't think it is possible by construction.  The only possible sources of stalls at this point would be IFU and LSU stalls and both are required to make this condition happen.
 2023-05-30 15:20:24 -05:00
Jacob Pease
2ad9c72acc The Vivado-RISC-V SDC works. Wally is now booting through it. 2023-05-26 15:42:33 -05:00
Ross Thompson
3765ebfb9f PMA checker's address decoder is now parameterized. I did not see bit slicing in Lim's code. I'm not sure how they got around this issue. 2023-05-26 11:06:48 -05:00
Ross Thompson
7c364d5a77 Updated mmu's tlb and hptw to use Lim's parameterization. 2023-05-24 18:02:22 -05:00
Ross Thompson
438c955d1c PM(P/A) checkers parameterized based on Lim's work. 2023-05-24 17:20:55 -05:00
Ross Thompson
febb2442db Partial parameterization into mmu. 2023-05-24 16:12:41 -05:00
David Harris
c1786bfec8 IMMU exclude non word-sized accesses 2023-05-01 08:14:19 -07:00
David Harris
d5c350c597 Merged coverage exclusions for PMP 2023-04-28 08:04:25 -07:00
David Harris
ca5a71bbe5 PMA Checker coverage 2023-04-28 07:53:59 -07:00
David Harris
22e4f82a99 Commenting 2023-04-28 07:52:08 -07:00
David Harris
f6f43e826a Removed clear from TLBLRU because there is no need to flush LRU state and it causes coverage issues 2023-04-28 07:03:46 -07:00
Liam
6803347a49 Pmpadrdecs test cases changing AdrMode to 2 or 3 
Setting AdrMode to 2 or 3 for pmpadrdecs[0-4] writing values to pmpcfg0 to change AdrMode to 2 or 3
Also exclusion for pmpadrdecs[0] coverage case for PAgePMPAdrIn being hardwired to 1 in pmpadrdec.sv
 2023-04-27 12:23:35 -07:00
Limnanthes Serafini
c427b4c896 Misc typo and indent fixing. 2023-04-13 16:54:15 -07:00
Ross Thompson
1478115faf Fixed wally64/32priv test hangup. 
The fix for the issue 203 had a lingering bug which did not suppress a bus access if the hptw short circuits on a pma/p fault.
 2023-04-05 23:13:45 -05:00
Ross Thompson
7c2512446c Progress on bug 203. 2023-04-05 13:20:04 -05:00
David Harris
aa31b45d88 Fixed RV32 tests after PMP fix 2023-03-28 08:35:23 -07:00
David Harris
39d3bf8e8a Fixed PMP issue 132. Updated tests to initialize PMP before using. Needs to remake tests 2023-03-28 06:58:17 -07:00
Ross Thompson
730f3ac84e Fixed all tap/space issue in RTL. 2023-03-24 17:32:25 -05:00
David Harris
77fb1b57f4 Fix Issue 145 2023-03-22 04:33:14 -07:00
David Harris
02e7e7d011 Added comments about PMP checker fixes when test cases will be ready to initialize PMP before entering user mode 2023-03-19 05:46:34 -07:00
Ross Thompson
b8dca927f2 Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-03-06 18:39:15 -06:00
Ross Thompson
6fc157e628 Renamed PCFSpill to PCSpillF. 2023-03-06 17:50:57 -06:00
David Harris
e78591093e Renamed I/D TLBMissOrDAFault to TLBMissOrUpdateDA for consistency with UpdateDA 2023-03-01 11:18:00 -08:00
David Harris
0d3d499940 hptw typo fix 2023-02-26 19:38:34 -08:00
David Harris
907fbfec38 Simplified Access fault logic in HPTW 2023-02-26 18:50:37 -08:00
David Harris
d3f5708ded StoreAmo faults are generated instead of load faults on AMO operations 2023-02-26 18:35:10 -08:00
David Harris
d2fd34efe6 Renamed DAPageFault to UpdateDA 2023-02-26 17:51:45 -08:00
David Harris
246deeda82 renamed UpperBitsUnequalPageFault to UpperBitsUnequal 2023-02-26 17:32:34 -08:00
David Harris
099267ffce moved tlb to subdirectory 2023-02-26 17:31:03 -08:00
David Harris
a9e884acc8 Moved TLB into subdirectory of MMU 2023-02-26 17:28:05 -08:00
David Harris
2ad62ea31f Removed unneeded TLBFlush from TLBMiss 2023-02-26 10:04:16 -08:00
David Harris
2203c05724 Access faults are geted by ~TLBMiss rather than ~(Translate & ~TLBHit) 2023-02-26 09:58:34 -08:00
David Harris
4579a9d0c2 Renamed HPTW_WRITES_SUPPORTED to SVADU_SUPPORTED 2023-02-26 09:38:32 -08:00
David Harris
e3e5100f8d Renamed DAPageFault to HPTWDAPageFault in hptw to avoid name conflict with DAPageFault from tlbcontrol 2023-02-26 07:12:43 -08:00
David Harris
27acb90217 Fixed SSTC being unusable in M-MODE without Status.TM. Disable STIMECMP registers when SSTC_SUPPORTED = 0 2023-02-26 06:30:43 -08:00
David Harris
60752fe51c Fixed special cases of address decoder and documented better 2023-02-24 07:52:46 -08:00
David Harris
5b8d1e4134 PMP checker size check to avoid spurious warnings 2023-02-19 16:08:23 -08:00