Changeset 221 for trunk/modules/vci_cc_vcache_wrapper_v4/caba

Timestamp:

Mar 23, 2012, 9:20:48 PM (13 years ago)

Author:

alain

Message:

 

File:

• trunk/modules/vci_cc_vcache_wrapper_v4/caba/source/src/vci_cc_vcache_wrapper_v4.cpp (modified) (7 diffs)

trunk/modules/vci_cc_vcache_wrapper_v4/caba/source/src/vci_cc_vcache_wrapper_v4.cpp

@@ -4119 +4119 @@
         bool hit;
 
-        hit = r_dcache.inval( way, 
-                              set,
-                              &nline );
-        assert(hit && "CC_INVAL way/set should still be in dcache");
-            
-        // possible itlb & dtlb invalidate 
-        if ( r_dcache_in_tlb[way*m_dcache_sets+set] )                   // selective inval
+        if ( r_dcache_in_tlb[way*m_dcache_sets+set] )                   // selective TLB inval
         {
             r_dcache_in_tlb[way*m_dcache_sets+set] = false;
@@ -4133 +4127 @@
             r_dcache_fsm             = DCACHE_INVAL_TLB_SCAN;
         }
-        else if ( r_dcache_contains_ptd[way*m_dcache_sets+set] )        // flush
-        {
-            r_itlb.reset();
-            r_dtlb.reset();
-            r_dcache_contains_ptd[way*m_dcache_sets+set] = false;
+        else                                                            // actual cache line inval
+        {
+            if ( r_dcache_contains_ptd[way*m_dcache_sets+set] )         // TLB flush
+            {
+                r_itlb.reset();
+                r_dtlb.reset();
+                r_dcache_contains_ptd[way*m_dcache_sets+set] = false;
+            }
             r_tgt_dcache_rsp = true;
             r_tgt_dcache_req = false;
             r_dcache_fsm     = r_dcache_fsm_cc_save.read();
-        }
-        else                                                            // no inval
-        {
-            r_tgt_dcache_rsp = true;
-            r_tgt_dcache_req = false;
-            r_dcache_fsm     = r_dcache_fsm_cc_save.read();
-        }
-
+ 
+            hit = r_dcache.inval( way, 
+                                  set,
+                                  &nline );
 #if DEBUG_DCACHE
 if ( m_debug_dcache_fsm )
@@ -4158 +4151 @@
 #endif
   
+            assert(hit && "CC_INVAL way/set should still be in dcache");
+        }
         break;
     }
@@ -4169 +4164 @@
         paddr_t  nline      = r_tgt_paddr.read() >> (uint32_log2(m_dcache_words)+2);
 
-        // possible itlb & dtlb invalidate 
-        if ( r_dcache_in_tlb[way*m_dcache_sets+set] )           // selective inval
+        if ( r_dcache_in_tlb[way*m_dcache_sets+set] )                   // selective TLB inval
         {
             r_dcache_in_tlb[way*m_dcache_sets+set] = false;
@@ -4178 +4172 @@
             r_dcache_fsm             = DCACHE_INVAL_TLB_SCAN;
         }
-        else if ( r_dcache_contains_ptd[way*m_dcache_sets+set] ) // flush
-        {
-            r_itlb.reset();
-            r_dtlb.reset();
-            r_dcache_contains_ptd[way*m_dcache_sets+set] = false;
-            r_tgt_dcache_rsp = true;
-            r_tgt_dcache_req = false;
-            r_dcache_fsm     = r_dcache_fsm_cc_save.read();
-        }
-        else                                                    // no inval & no flush
-        {
+        else                                                            // cache update
+        {
+            if ( r_dcache_contains_ptd[way*m_dcache_sets+set] )         // TLB flush
+            {
+                r_itlb.reset();
+                r_dtlb.reset();
+                r_dcache_contains_ptd[way*m_dcache_sets+set] = false;
+            } 
+
             r_dcache.write( way,
                             set,
@@ -4198 +4190 @@
 #endif
             r_dcache_cc_word = word + 1;
-
-            if ( word == r_tgt_word_max.read() )        // last word
-            {
-                r_tgt_dcache_rsp = true;
-                r_tgt_dcache_req = false;
-                r_dcache_fsm     = r_dcache_fsm_cc_save.read();
-            }
-        }
 
 #if DEBUG_DCACHE
@@ -4217 +4201 @@
 }
 #endif
-  
+            if ( word == r_tgt_word_max.read() )        // last word
+            {
+                r_tgt_dcache_rsp = true;
+                r_tgt_dcache_req = false;
+                r_dcache_fsm     = r_dcache_fsm_cc_save.read();
+            }
+        }
+
         break;
     }