From 4597a71cef808969c442fca73ae662efe75550d7 Mon Sep 17 00:00:00 2001
From: Steve Reinhardt <stever@gmail.com>
Date: Sat, 16 Feb 2008 14:58:03 -0500
Subject: Make L2+ caches allocate new block for writeback misses instead of
 forwarding down the line.

--HG--
extra : convert_revision : b0d6e7862c92ea7a2d21f817d30398735e7bb8ba
---
 src/mem/cache/cache.hh | 8 ++++++++
 1 file changed, 8 insertions(+)

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

diff --git a/src/mem/cache/cache.hh b/src/mem/cache/cache.hh
index 073ce5ecb..6f5428c13 100644
--- a/src/mem/cache/cache.hh
+++ b/src/mem/cache/cache.hh
@@ -169,6 +169,14 @@ class Cache : public BaseCache
      */
     void cmpAndSwap(BlkType *blk, PacketPtr pkt);
 
+    /**
+     * Find a block frame for new block at address addr, assuming that
+     * the block is not currently in the cache.  Append writebacks if
+     * any to provided packet list.  Return free block frame.  May
+     * return NULL if there are no replaceable blocks at the moment.
+     */
+    BlkType *allocateBlock(Addr addr, PacketList &writebacks);
+
     /**
      * Populates a cache block and handles all outstanding requests for the
      * satisfied fill request. This version takes two memory requests. One
-- 
cgit v1.2.3