Uint64 *gaMainBitmap = (void*)MM_PAGE_BITMAP; // 1 bit = 1 Page, 256 KiB per Word
Uint64 *gaMultiBitmap = (void*)MM_PAGE_DBLBMP; // Each bit means that the page is being used multiple times
Uint32 *gaiPageReferences = (void*)MM_PAGE_COUNTS; // Reference Counts
+void **gapPageNodes = (void*)MM_PAGE_NODES; // Reference Counts
tPAddr giFirstFreePage; // First possibly free page
Uint64 giPhysRangeFree[NUM_MM_PHYS_RANGES]; // Number of free pages in each range
Uint64 giPhysRangeFirst[NUM_MM_PHYS_RANGES]; // First free page in each range
else
return MM_PHYS_16BIT;
}
+
+int MM_SetPageNode(tPAddr PAddr, void *Node)
+{
+ tPAddr page = PAddr >> 12;
+ tVAddr node_page = ((tVAddr)&gapPageNodes[page]) & ~(PAGE_SIZE-1);
+
+// if( !MM_GetRefCount(PAddr) ) return 1;
+
+ if( !MM_GetPhysAddr(node_page) ) {
+ if( !MM_Allocate(node_page) )
+ return -1;
+ memset( (void*)node_page, 0, PAGE_SIZE );
+ }
+
+ gapPageNodes[page] = Node;
+ return 0;
+}
+
+int MM_GetPageNode(tPAddr PAddr, void **Node)
+{
+// if( !MM_GetRefCount(PAddr) ) return 1;
+ PAddr >>= 12;
+
+ if( !MM_GetPhysAddr( (tVAddr)&gapPageNodes[PAddr] ) ) {
+ *Node = NULL;
+ return 0;
+ }
+
+ *Node = gapPageNodes[PAddr];
+ return 0;
+}
+