+static u64 pci_size64(u64 base, u64 maxbase, u64 mask)
+{
+ u64 size = mask & maxbase; /* Find the significant bits */
+ if (!size)
+ return 0;
+
+ /* Get the lowest of them to find the decode size, and
+ from that the extent. */
+ size = (size & ~(size-1)) - 1;
+
+ /* base == maxbase can be valid only if the BAR has
+ already been programmed with all 1s. */
+ if (base == maxbase && ((base | size) & mask) != mask)
+ return 0;
+
+ return size;
+}
+
+static inline int is_64bit_memory(u32 mask)
+{
+ if ((mask & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) ==
+ (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64))
+ return 1;
+ return 0;
+}
+