Changeset 984 for trunk/modules/vci_io_bridge/caba/source/include

Timestamp:

Apr 19, 2015, 5:19:34 PM (10 years ago)

Author:

cfuguet

Message:

bugfixes on vci_io_bridge:

Several bugfixes concerning the use of the IOMMU.

• The control registers for the TLB prefetch buffer were either not set or set erroneously.

• Add a new set/reset register between the WTI_RSP and the TLB FSMs. This register is used by the WTI_RSP to signal the completion of a MISS TLB transaction.

• The MISS_WTI_CMD can issue transactions concerning a single word or an entire cache line. The first are used for WTI requests from external peripherals and the second are used for TLB MISS transactions.

• Several programming errors concerning type casts. Some 64 bits variable were incorrectly cast and therefore, there was some information lost.

File:

• trunk/modules/vci_io_bridge/caba/source/include/vci_io_bridge.h (modified) (3 diffs)

trunk/modules/vci_io_bridge/caba/source/include/vci_io_bridge.h

@@ -24 +24 @@
  *
  * SOCLIB_LGPL_HEADER_END
+ *
+ * Maintainers: Cesar Fuguet Tortolero <cesar.fuguet-tortolero@lip6.fr>
  */
 /////////////////////////////////////////////////////////////////////////////////
@@ -120 +122 @@
     enum
     {
-        CACHE_LINE_MASK    = 0xFFFFFFFFC0LL,
+        CACHE_LINE_MASK    = 0xFFFFFFFFC0ULL,
         PPN1_MASK          = 0x0007FFFF,
         PPN2_MASK          = 0x0FFFFFFF,
@@ -365 +367 @@
     sc_signal<vci_pktid_t>      r_miss_wti_rsp_to_dma_rsp_rpktid;
 
+    sc_signal<bool>             r_miss_wti_rsp_to_tlb_done;
 
     /////////////////////////////////////////////////////