PCI: introduce an pci_ioremap(pdev, barnr) function

[linux-2.6-omap-h63xx.git] / include / linux / pci.h

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 7e9a1f0715e6efe3490e11781ed286ed32bda966..46ad282ffe4d159025a277c9b83410ca3db7a29b 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1119,5 +1119,18 @@ static inline void pci_mmcfg_early_init(void) { }
 static inline void pci_mmcfg_late_init(void) { }
 #endif
 
+static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar)
+{
+       /*
+        * Make sure the BAR is actually a memory resource, not an IO resource
+        */
+       if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
+               WARN_ON(1);
+               return NULL;
+       }
+       return ioremap_nocache(pci_resource_start(pdev, bar),
+                                    pci_resource_len(pdev, bar));
+}
+
 #endif /* __KERNEL__ */
 #endif /* LINUX_PCI_H */