Changeset 313 for branches/v5/modules/vci_mem_cache_dspin_coherence/caba/metadata/vci_mem_cache.sd

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_dspin_coherence/caba/metadata/vci_mem_cache.sd (modified) (3 diffs)

branches/v5/modules/vci_mem_cache_dspin_coherence/caba/metadata/vci_mem_cache.sd

@@ -9 +9 @@
 
         tmpl_parameters = [
-                        parameter.Module('vci_param'  , default = 'caba:vci_param'),
-                        parameter.Int('from_mc_flit_width', default = 40),
-                        parameter.Int('from_l1_flit_width', default = 33)
+                        parameter.Module('vci_param'  , default = 'caba:vci_param')
                 ],
 
@@ -29 +27 @@
             Uses('caba:generic_fifo'),
             Uses('caba:generic_llsc_global_table'),
-                        Uses(
-                          'caba:dspin_dhccp_param',
-                          from_mc_flit_width_t = parameter.Reference('from_mc_flit_width'),
-                          from_l1_flit_width_t = parameter.Reference('from_l1_flit_width'),
-                          ),
+                        Uses('caba:dspin_dhccp_param')
         ],
 
@@ -41 +35 @@
                                 'caba:dspin_input',
                                 'p_dspin_in',
-                                dspin_data_size = parameter.Reference('from_l1_flit_width'),
+                                dspin_data_size = 33,
                         ),
                         Port(
                                 'caba:dspin_output',
                                 'p_dspin_out',
-                                dspin_data_size = parameter.Reference('from_mc_flit_width'),
+                                dspin_data_size = 40,
                         ),
             Port( 'caba:vci_initiator', 'p_vci_ixr' ),