Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-01-24 13:34:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed wally64/32priv test hangup.

Browse Source 
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.
This commit is contained in:
Ross Thompson 2023-04-05 23:13:45 -05:00
parent da9cf02ba0
commit e531b0103e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mmu/hptw.sv
View File

@ -288,7 +288,7 @@ module hptw (
default: NextWalkerState = IDLE; // should never be reached
endcase // case (WalkerState)
assign IgnoreRequestTLB = WalkerState == IDLE & TLBMiss;
assign IgnoreRequestTLB = (WalkerState == IDLE & TLBMiss) | (LSUAccessFaultM); // RT : 05 April 2023 if hptw request has pmp/a fault suppress bus access.
assign SelHPTW = WalkerState != IDLE;
assign HPTWAccessFaultDelay = HPTWLoadAccessFaultDelay | HPTWStoreAmoAccessFaultDelay | HPTWInstrAccessFaultDelay;
assign HPTWStall = (WalkerState != IDLE) | (WalkerState == IDLE & TLBMiss & ~(HPTWAccessFaultDelay));