asm-generic: make pci.h usable directly
Some generic code is using the horribly misnamed PCI_DMA_BUS_IS_PHYS
from asm/pci.h. This makes sure that an architecture without PCI
support does not have to define this itself but can rely on the
asm-generic version.
Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index c36a77d..515c6e2 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -52,4 +52,12 @@
}
#endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
+/*
+ * By default, assume that no iommu is in use and that the PCI
+ * space is mapped to address physical 0.
+ */
+#ifndef PCI_DMA_BUS_IS_PHYS
+#define PCI_DMA_BUS_IS_PHYS (1)
#endif
+
+#endif /* _ASM_GENERIC_PCI_H */