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Fixed a bug with the hptw configuration not correctly avoiding UPDATE_PTE state.

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This commit is contained in:
Ross Thompson 2022-11-14 16:02:20 -06:00
parent f03d5d3ac8
commit ec6517fadd
1 changed files with 2 additions and 2 deletions
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4
pipelined/src/mmu/hptw.sv
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@ -262,9 +262,9 @@ module hptw (
else NextWalkerState = LEAF;
L0_RD: if (DCacheStallM) NextWalkerState = L0_RD;
else NextWalkerState = LEAF;
LEAF: if (DAPageFault) NextWalkerState = UPDATE_PTE;
LEAF: if (`HPTW_WRITES_SUPPORTED & DAPageFault) NextWalkerState = UPDATE_PTE;
else NextWalkerState = IDLE;
UPDATE_PTE: if(`HPTW_WRITES_SUPPORTED & DCacheStallM) NextWalkerState = UPDATE_PTE;
UPDATE_PTE: if(DCacheStallM) NextWalkerState = UPDATE_PTE;
else NextWalkerState = LEAF;
default: NextWalkerState = IDLE; // should never be reached
endcase // case (WalkerState)