Replace the local interconnect with a software-configurable HCI (log) interconnect

Bender.yml

@@ -32,7 +32,7 @@ dependencies:
   idma              : { git: "https://github.com/FondazioneChipsIT/iDMA.git"          , rev: 26ac2cd1c535851b14c9c508762203a180961cad } # branch: cc/mcast_magia
   hwpe-stream       : { git: "https://github.com/pulp-platform/hwpe-stream.git"       , version: 1.6                                  }
   hwpe-ctrl         : { git: "https://github.com/pulp-platform/hwpe-ctrl.git"         , version: 3.1.1                                }
-  hci               : { git: "https://github.com/pulp-platform/hci.git"               , version: 2.3.0                                }
+  hci               : { git: "https://github.com/pulp-platform/hci.git"               , version: 2.6.1                                }
   cluster_icache    : { git: "https://github.com/pulp-platform/cluster_icache.git"    , version: 0.2.0                                }
   fpnew             : { git: "https://github.com/pulp-platform/cvfpu.git"             , rev: "pulp-v0.1.3"                            }
   fpu_ss            : { git: "https://github.com/pulp-platform/fpu_ss.git"            , rev: f31c77c7517c0a67f2c55a290fc8c6ff6019e362 } # branch: lb/cv32e40x_fpu
@@ -81,13 +81,14 @@ sources:
       - hw/tile/magia_event_unit.sv
       - hw/tile/obi_demux_addr.sv
       - hw/tile/l1_spm.sv
-      - hw/tile/local_interconnect.sv
+      - hw/tile/magia_hci_interconnect.sv
       - hw/tile/idma_axi_obi_transfer_ch.sv
       - hw/tile/idma_obi_ctrl_decoder.sv
       - hw/tile/idma_ctrl_mm.sv
       - hw/tile/obi_slave_fsync.sv
       - hw/tile/obi_slave_ctrl_spatz.sv
       - hw/tile/obi_slave_ctrl_cluster.sv
+      - hw/tile/obi_slave_ctrl_hci.sv
       - hw/tile/spatz_bootrom.sv
       - hw/tile/spatz_cc_wrapper.sv
       - hw/tile/core_data_demux.sv

README.md

@@ -273,7 +273,8 @@ Private map: the same range in every tile, each tile maps it to its own copy:
 | *FractalSync CTRL*| `0x0000_0600-0x0000_06FF` |
 | *Ctrl-core Event Unit* | `0x0000_0700-0x0000_16FF` |
 | *Spatz CTRL*      | `0x0000_1700-0x0000_173F` |
-| *PULP CTRL*       | `0x0000_1740-0x0000_17FF` |
+| *PULP CTRL*       | `0x0000_1740-0x0000_17BF` |
+| *HCI CTRL*        | `0x0000_17C0-0x0000_17FF` |
 | *Collective CTRL* | `0x0000_1800-0x0000_18FF` |
 | *Cluster Event Unit (direct)*   | `0x0000_1900-0x0000_28FF` |
 | *Cluster Event Unit (SoC-side)* | `0x0000_2900-0x0000_38FF` |

hw/mesh/magia_pkg.sv

@@ -75,6 +75,7 @@ package magia_pkg;
     int unsigned Height;       // Systolic array height
     int unsigned Width;        // Systolic array width
     int unsigned NumPipeRegs;  // Pipeline registers in the systolic array
+    bit          MisalignedAccess;  // TCDM accesses off the bank word, at the cost of one more bank on the HCI port
   } redmule_cfg_t;
 
   typedef struct packed {
@@ -131,9 +132,10 @@ package magia_pkg;
   };
 
   localparam redmule_cfg_t MagiaRedMuleDefaultCfg = '{
-    Height:      8,
-    Width:       8,
-    NumPipeRegs: 1
+    Height:           8,
+    Width:            8,
+    NumPipeRegs:      1,
+    MisalignedAccess: 1'b1
   };
 
  // Derived from the MAGIA Makefile (Reflects on spatz_pkg.sv in spatz_cluster dep)