From 6c5a3ab8b28ae14e1f1c37076b7370b37c70de62 Mon Sep 17 00:00:00 2001
From: Steve Reinhardt <stever@gmail.com>
Date: Wed, 2 Jan 2008 15:22:38 -0800
Subject: Add ReadRespWithInvalidate to handle multi-level coherence situation
 where we defer a response to a read from a far-away cache A, then later defer
 a ReadExcl from a cache B on the same bus as us.  We'll assert MemInhibit in
 both cases, but in the latter case MemInhibit will keep the invalidation from
 reaching cache A.  This special response tells cache A that it gets the block
 to satisfy its read, but must immediately invalidate it.

--HG--
extra : convert_revision : f85c8b47bb30232da37ac861b50a6539dc81161b
---
 src/mem/packet.hh | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/mem/packet.hh')

diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 30ef71507..05442b369 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -66,6 +66,7 @@ class MemCmd
         InvalidCmd,
         ReadReq,
         ReadResp,
+        ReadRespWithInvalidate,
         WriteReq,
         WriteResp,
         Writeback,
-- 
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