[SPARC64]: Internalize pci_memspace_mask.
The only user was bus_dvma_to_mem() which is no longer used
by any driver, so kill that, and the export of pci_memspace_mask.
The only user now is the PCI mmap support code.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/pci_impl.h b/arch/sparc64/kernel/pci_impl.h
index ea8a6bd..c4ba702 100644
--- a/arch/sparc64/kernel/pci_impl.h
+++ b/arch/sparc64/kernel/pci_impl.h
@@ -13,6 +13,7 @@
#include <asm/prom.h>
extern struct pci_controller_info *pci_controller_root;
+extern unsigned long pci_memspace_mask;
extern int pci_num_controllers;