Changeset 481 for soft/giet_vm/giet_drivers/dma_driver.c

Timestamp:

Jan 1, 2015, 8:23:48 PM (10 years ago)

Author:

alain

Message:

1) The NIC, IOC, DMA and HBA drivers have been adapted to support the new _v2p_translate() function prototype (returns void).
2) The _mmc_inval() and _mmc_sync() functions does not use anymore the hard lock in the MMC, but use a soft spin_lock.
3) The NIC driver does not use anymore the GIET_NIC_BUFSIZE, GIET_NIC_NBUFS, and GIET_NIC_TIMEOUT parameters (removed from giet_config.h file).
4) The NIC driver registers map has been modified to support 64 bytes buffer descriptors for chained buffers.

File:

• soft/giet_vm/giet_drivers/dma_driver.c (modified) (2 diffs)

soft/giet_vm/giet_drivers/dma_driver.c

@@ -278 +278 @@
     }
 
-    unsigned int ko;
     unsigned int ppn;
     unsigned int flags;
@@ -313 +312 @@
 
     // get src_paddr buffer physical addresse
-    ko = _v2p_translate( (page_table_t*)pt,              // page table pointer
-                         src_vaddr>>12,                  // vpn 
-                         &ppn,                           // ppn
-                         &flags );                       // flags
-    if ( ko ) 
-    {
-        _puts("\n[DMA ERROR] in _dma_copy() : source buffer unmapped\n");
-        _exit();
-    }
+    _v2p_translate( (page_table_t*)pt,              // page table pointer
+                     src_vaddr>>12,                  // vpn 
+                     &ppn,                           // ppn
+                     &flags );                       // flags
     unsigned long long src_paddr = (((unsigned long long)ppn) << 12) | 
                                    (unsigned long long)(src_vaddr & 0x00000FFF);
 
     // get dst_paddr buffer physical addresse
-    ko = _v2p_translate( (page_table_t*)pt,              // page table pointer
-                         dst_vaddr>>12,                  // vpn 
-                         &ppn,                           // ppn
-                         &flags );                       // flags
-    if ( ko ) 
-    {
-        _puts("\n[DMA ERROR] in _dma_copy() : dest buffer unmapped\n");
-        _exit();
-    }
+    _v2p_translate( (page_table_t*)pt,              // page table pointer
+                     dst_vaddr>>12,                  // vpn 
+                     &ppn,                           // ppn
+                     &flags );                       // flags
     unsigned long long dst_paddr = (((unsigned long long)ppn) << 12) | 
                                    (unsigned long long)(dst_vaddr & 0x00000FFF);