This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / sparc / lib / iomap.c

diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
new file mode 100644 (file)
index 0000000..54501c1
--- /dev/null
+++ b/arch/sparc/lib/iomap.c
@@ -0,0 +1,48 @@
+/*
+ * Implement the sparc iomap interfaces
+ */
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <asm/io.h>
+
+/* Create a virtual mapping cookie for an IO port range */
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+       return (void __iomem *) (unsigned long) port;
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+       /* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
+
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+       unsigned long start = pci_resource_start(dev, bar);
+       unsigned long len = pci_resource_len(dev, bar);
+       unsigned long flags = pci_resource_flags(dev, bar);
+
+       if (!len || !start)
+               return NULL;
+       if (maxlen && len > maxlen)
+               len = maxlen;
+       if (flags & IORESOURCE_IO)
+               return ioport_map(start, len);
+       if (flags & IORESOURCE_MEM) {
+               if (flags & IORESOURCE_CACHEABLE)
+                       return ioremap(start, len);
+               return ioremap_nocache(start, len);
+       }
+       /* What? */
+       return NULL;
+}
+
+void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
+{
+       /* nothing to do */
+}
+EXPORT_SYMBOL(pci_iomap);
+EXPORT_SYMBOL(pci_iounmap);