Changeset 532 for trunk/modules

Timestamp:

Sep 20, 2013, 3:00:32 PM (11 years ago)

Author:

haoliu

Message:

Bug fix in the vci_cc_vcache_wrapper:
In the DCACHE_MISS_CLEAN state, we should scan tlb with when the victim line
contain the pte. The register nline we use for scanning tlb is the register nline
for cc_send fsm. But when there is a cleanup tardive request, we should use the
register line which contain this tardive request, because the r_dcache_cc_send_nline register
is not updated at this moment.

File:

• trunk/modules/vci_cc_vcache_wrapper/caba/source/src/vci_cc_vcache_wrapper.cpp (modified) (1 diff)

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

@@ -4143 +4143 @@
         {
             r_dcache_in_tlb[way*m_dcache_sets+set] = false;
-            r_dcache_tlb_inval_line  = r_dcache_cc_send_nline;
+
+            if( not r_dcache_cleanup_victim_req.read() )
+                r_dcache_tlb_inval_line  = r_dcache_cc_send_nline.read();
+            else
+                r_dcache_tlb_inval_line = r_dcache_cleanup_victim_nline.read();
+
             r_dcache_tlb_inval_set   = 0;
             r_dcache_fsm_scan_save   = DCACHE_MISS_WAIT;