From 43a45edcf0b6a267fb85684ec0f4b2fa4b071e0b Mon Sep 17 00:00:00 2001 From: Andreas Hansson Date: Tue, 17 Jan 2012 12:55:07 -0600 Subject: Ruby: Change the access permissions for MOESI hammer 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. --- src/mem/protocol/MOESI_hammer-dir.sm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/mem/protocol/MOESI_hammer-dir.sm b/src/mem/protocol/MOESI_hammer-dir.sm index a20619d46..dfb62e844 100644 --- a/src/mem/protocol/MOESI_hammer-dir.sm +++ b/src/mem/protocol/MOESI_hammer-dir.sm @@ -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"; -- cgit v1.2.3