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Ruby: Change the access permissions for MOESI hammer

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This patch changes the access permission for the WB_E_W state from
Busy to Read_Write to avoid having issues in follow-on patches with
functional accesses going through Ruby. This change was made after
consultation with all involved parties and is more of a work-around
than a fix.
This commit is contained in:
Andreas Hansson
2012-01-17 12:55:07 -06:00
parent 41af57f9fb
commit 43a45edcf0
1 changed files with 1 additions and 1 deletions
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2
src/mem/protocol/MOESI_hammer-dir.sm
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@@ -87,7 +87,7 @@ machine(Directory, "AMD Hammer-like protocol")
O_DR_B, AccessPermission:Busy, desc="Owner, Dma Read waiting for cache responses";
WB, AccessPermission:Busy, desc="Blocked on a writeback";
WB_O_W, AccessPermission:Busy, desc="Blocked on memory write, will go to O";
WB_E_W, AccessPermission:Busy, desc="Blocked on memory write, will go to E";
WB_E_W, AccessPermission:Read_Write, desc="Blocked on memory write, will go to E";
NO_F, AccessPermission:Busy, desc="Blocked on a flush";
NO_F_W, AccessPermission:Busy, desc="Not Owner, Blocked, waiting for Dram";