On Tuesday 04 March 2014, Liviu Dudau wrote:

+extern int isa_dma_bridge_buggy;

As commented before, I still think we can hardcode this to off

+unsigned long pci_address_to_pio(phys_addr_t address)
+{
+	struct ioresource *res;
+
+	list_for_each_entry(res, &io_list, list) {
+		if (address >= res->start &&
+			address < res->start + res->size) {
+			return res->start - address;
+		}
+	}
+
+	return (unsigned long)-1;
+}
+EXPORT_SYMBOL_GPL(pci_address_to_pio);

This has two problems:

- You return the address in bus space not the logical Linux
  port number as powerpc and microblaze do.
- You imply that the window starts at bus address zero, which
  might not be the case.

+EXPORT_SYMBOL(pcibios_fixup_bus);

no need for this export.

+/*
+ * We don't have to worry about legacy ISA devices, so nothing to do here
+ */
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+				resource_size_t size, resource_size_t align)
+{
+	return ALIGN(res->start, align);
+}
+EXPORT_SYMBOL(pcibios_align_resource);

or this one. Also, the ALIGN() is already done by the PCI core.

	Arnd