Changeset 313 for branches/v5/modules/vci_mem_cache/caba/source/include/vci_mem_cache.h

Timestamp:

Mar 12, 2013, 3:20:33 PM (11 years ago)

Author:

cfuguet

Message:

Erasing useless template parameters for the communication/dspin_dhccp_param class.

Modifying consequently the vci_mem_cache_dspin_coherence class to use the
dspin_dhccp_param class without templates.

Introducing in the vci_mem_cache and the vci_mem_cache_dspin_coherence modules
the state CAS_DIR_HIT_COMPARE.

Before this modification, the comparison between the expected data and the actual
data was done directly in the CAS_DIR_HIT_READ state using the data obtained in the
same cycle from the cache.

Now, the data obtained from the cache is stored in a buffer and the next cycle,
in the CAS_DIR_HIT_COMPARE state, the comparison is made using the data from the
buffer.

This modifications allows to eliminate a critical path obtained in the ASIC
synthesis of the memory cache.

File:

• branches/v5/modules/vci_mem_cache/caba/source/include/vci_mem_cache.h (modified) (2 diffs)

branches/v5/modules/vci_mem_cache/caba/source/include/vci_mem_cache.h

@@ -215 +215 @@
         CAS_DIR_LOCK,
         CAS_DIR_HIT_READ,
+        CAS_DIR_HIT_COMPARE,
         CAS_DIR_HIT_WRITE,
         CAS_UPT_LOCK,
@@ -660 +661 @@
       sc_signal<size_t>   r_cas_trt_index;  // Transaction Table index
       sc_signal<size_t>   r_cas_upt_index;  // Update Table index
+      sc_signal<data_t> * r_cas_data;       // cache line data
 
       // Buffer between CAS fsm and INIT_CMD fsm (XRAM read)