From: Dave Brolley <brolley@redhat.com>
Date: Mon, 3 Nov 2003 18:29:57 +0000 (+0000)
Subject: 2003-11-03  Dave Brolley  <brolley@redhat.com>
X-Git-Tag: cagney_bigcore-20040122-branchpoint~950
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0b01870bf406d5e6dc9f079318b48abae8d1c12b;p=external%2Fbinutils.git

2003-11-03  Dave Brolley  <brolley@redhat.com>

        * cache.c (address_interference): Check for higher priority requests
        in the same pipeline.
---

diff --git a/sim/frv/ChangeLog b/sim/frv/ChangeLog
index 2589e0d..efeb2bc 100644
--- a/sim/frv/ChangeLog
+++ b/sim/frv/ChangeLog
@@ -1,3 +1,8 @@
+2003-11-03  Dave Brolley  <brolley@redhat.com>
+
+	* cache.c (address_interference): Check for higher priority requests
+	in the same pipeline.
+
 2003-10-31  Dave Brolley  <brolley@redhat.com>
 
 	* frv-sim.h (LR_REGNUM): Removed.
diff --git a/sim/frv/cache.c b/sim/frv/cache.c
index bfefa87..7b2635b 100644
--- a/sim/frv/cache.c
+++ b/sim/frv/cache.c
@@ -1109,14 +1109,23 @@ address_interference (FRV_CACHE *cache, SI address, FRV_CACHE_REQUEST *req,
 	    return 1;
 	}
       /* If this is not a WAR request, then yield to any WAR requests in
-	 either pipeline.  */
+	 either pipeline or to a higher priority request in the same pipeline.
+      */
       if (req->kind != req_WAR)
 	{
 	  for (j = FIRST_STAGE; j < FRV_CACHE_STAGES; ++j)
 	    {
 	      other_req = cache->pipeline[i].stages[j].request;
-	      if (other_req != NULL && other_req->kind == req_WAR)
-		return 1;
+	      if (other_req != NULL)
+		{
+		  if (other_req->kind == req_WAR)
+		    return 1;
+		  if (i == pipe
+		      && (address == (other_req->address & line_mask) 
+			  || address == all_address)
+		      && priority > other_req->priority)
+		    return 1;
+		}
 	    }
 	}
     }