From 06a9f58c68b621f082d39299bdb01f59ef68ef0e Mon Sep 17 00:00:00 2001
From: Ali Saidi <saidi@eecs.umich.edu>
Date: Fri, 10 Aug 2007 16:14:01 -0400
Subject: DMA: Add IOCache and fix bus bridge to optionally only send requests
 one way so a cache can handle partial block requests for i/o devices.

--HG--
extra : convert_revision : a68b5ae826731bc87ed93eb7ef326a2393053964
---
 src/mem/cache/base_cache.hh | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

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

diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh
index 719ab0245..6a4eec43e 100644
--- a/src/mem/cache/base_cache.hh
+++ b/src/mem/cache/base_cache.hh
@@ -98,7 +98,8 @@ class BaseCache : public MemObject
         BaseCache *cache;
 
       protected:
-        CachePort(const std::string &_name, BaseCache *_cache);
+        CachePort(const std::string &_name, BaseCache *_cache,
+                std::vector<Range<Addr> > filter_ranges);
 
         virtual void recvStatusChange(Status status);
 
@@ -124,6 +125,9 @@ class BaseCache : public MemObject
 
         bool mustSendRetry;
 
+        /** filter ranges */
+        std::vector<Range<Addr> > filterRanges;
+
         void requestBus(RequestCause cause, Tick time)
         {
             DPRINTF(CachePort, "Asserting bus request for cause %d\n", cause);
@@ -367,15 +371,21 @@ class BaseCache : public MemObject
          */
         Counter maxMisses;
 
+        std::vector<Range<Addr> > cpuSideFilterRanges;
+        std::vector<Range<Addr> > memSideFilterRanges;
         /**
          * Construct an instance of this parameter class.
          */
         Params(int _hitLatency, int _blkSize,
                int _numMSHRs, int _numTargets, int _numWriteBuffers,
-               Counter _maxMisses)
+               Counter _maxMisses,
+               std::vector<Range<Addr> > cpu_side_filter_ranges,
+               std::vector<Range<Addr> > mem_side_filter_ranges)
             : hitLatency(_hitLatency), blkSize(_blkSize),
               numMSHRs(_numMSHRs), numTargets(_numTargets),
-              numWriteBuffers(_numWriteBuffers), maxMisses(_maxMisses)
+              numWriteBuffers(_numWriteBuffers), maxMisses(_maxMisses),
+              cpuSideFilterRanges(cpu_side_filter_ranges),
+              memSideFilterRanges(mem_side_filter_ranges)
         {
         }
     };
-- 
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