Changeset 717 for branches/fault_tolerance/platform/tsar_generic_iob/top.desc

Timestamp:

Jun 23, 2014, 4:02:53 PM (10 years ago)

Author:

cfuguet

Message:

fault_tolerance/tsar_generic_iob:

• introducing the vci_iopic component on the IOX interconnect.

• the input hardware interrupts on cluster(0,0) from the external peripherals have been removed because they are connected to the vci_iopic component.

• Replacing "ad-hoc" dspin_tsar router by standard dspin_router on the RAM interconnect. To do so, in IO clusters (clusters with IOB) two crossbars are implemented:

+ One for commands which interconnects MEMC and IOB to the

local interface of RAM CMD dspin_router.

+ One for responses which interconnects local interface of RAM

RSP dspin_router to MEMC and IOB.

• Considering case of mono cluster platform: Only one IOB must be instantiated.

• Modifying IOX memory segments used by IOX network for routing:

+ bugfix: all segments of IOX interconnect must have

global id = 0.

+ Adding XICU segments with special attribute. This

attribute is used by IOB to determine if a command coming
from external DMA peripheral should be routed
through INT or RAM networks.

+ Using bit 32 of physical address to determine if an

external DMA command should be routed through IOB0
or IOB1.

File:

• branches/fault_tolerance/platform/tsar_generic_iob/top.desc (modified) (4 diffs)

branches/fault_tolerance/platform/tsar_generic_iob/top.desc

@@ -2 +2 @@
 # -*- python -*-
 
-# VCI parameters 
+# VCI parameters
 vci_cell_size_int   = 4
 vci_cell_size_ext   = 8
@@ -16 +16 @@
 vci_wrplen_size     = 1
 
-# internal DSPIN network parameters 
+# internal DSPIN network parameters
 int_dspin_cmd_flit_size = 39
 int_dspin_rsp_flit_size = 32
@@ -27 +27 @@
     uses = [
             # cluster
-            Uses('caba:tsar_iob_cluster', 
+            Uses('caba:tsar_iob_cluster',
                   vci_data_width_int  = vci_cell_size_int,
-                  vci_data_width_ext  = vci_cell_size_ext, 
+                  vci_data_width_ext  = vci_cell_size_ext,
                   dspin_int_cmd_width = int_dspin_cmd_flit_size,
                   dspin_int_rsp_width = int_dspin_rsp_flit_size,
                   dspin_ram_cmd_width = ram_dspin_cmd_flit_size,
                   dspin_ram_rsp_width = ram_dspin_rsp_flit_size),
-                  
+
             # IOX Network
-            Uses('caba:vci_iox_network', 
+            Uses('caba:vci_iox_network',
                   cell_size = vci_cell_size_ext),
 
             # Frame Buffer
-            Uses('caba:vci_framebuffer', 
+            Uses('caba:vci_framebuffer',
                   cell_size = vci_cell_size_ext),
 
             # Block Device
-            Uses('caba:vci_block_device_tsar', 
+            Uses('caba:vci_block_device_tsar',
                   cell_size = vci_cell_size_ext),
 
-            # NIC 
-            Uses('caba:vci_multi_nic', 
+            # NIC
+            Uses('caba:vci_multi_nic',
                   cell_size = vci_cell_size_ext),
 
             # Chained DMA
-            Uses('caba:vci_chbuf_dma', 
+            Uses('caba:vci_chbuf_dma',
                   cell_size = vci_cell_size_ext),
 
             # TTY
-            Uses('caba:vci_multi_tty', 
+            Uses('caba:vci_multi_tty',
+                  cell_size = vci_cell_size_ext),
+
+            # PIC
+            Uses('caba:vci_iopic',
                   cell_size = vci_cell_size_ext),
 
@@ -64 +68 @@
 
     # default VCI parameters (global variables)
-    cell_size   = vci_cell_size_int,  
+    cell_size   = vci_cell_size_int,
     plen_size   = vci_plen_size,
     addr_size   = vci_addr_size,