/* mem resources */
        pdata->info.mem[TXRX_RING_MAP].name = "txrx_rings";
        pdata->info.mem[TXRX_RING_MAP].addr
-               = (phys_addr_t)dev->channel->ringbuffer_pages;
+               = (uintptr_t)dev->channel->ringbuffer_pages;
        pdata->info.mem[TXRX_RING_MAP].size
                = dev->channel->ringbuffer_pagecount << PAGE_SHIFT;
        pdata->info.mem[TXRX_RING_MAP].memtype = UIO_MEM_LOGICAL;
 
        pdata->info.mem[INT_PAGE_MAP].name = "int_page";
        pdata->info.mem[INT_PAGE_MAP].addr
-               = (phys_addr_t)vmbus_connection.int_page;
+               = (uintptr_t)vmbus_connection.int_page;
        pdata->info.mem[INT_PAGE_MAP].size = PAGE_SIZE;
        pdata->info.mem[INT_PAGE_MAP].memtype = UIO_MEM_LOGICAL;
 
        pdata->info.mem[MON_PAGE_MAP].name = "monitor_page";
        pdata->info.mem[MON_PAGE_MAP].addr
-               = (phys_addr_t)vmbus_connection.monitor_pages[1];
+               = (uintptr_t)vmbus_connection.monitor_pages[1];
        pdata->info.mem[MON_PAGE_MAP].size = PAGE_SIZE;
        pdata->info.mem[MON_PAGE_MAP].memtype = UIO_MEM_LOGICAL;