IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR...

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

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 2cd07cc29687c49bd1cf8a0883cf5c72bbb4e762..01712cf1a38b3b47d5f40f7b7ba145f343f286c5 100644 (file)
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -108,7 +108,11 @@ extern struct resource iomem_resource;
 
 extern int request_resource(struct resource *root, struct resource *new);
 extern int release_resource(struct resource *new);
+extern void reserve_region_with_split(struct resource *root,
+                            resource_size_t start, resource_size_t end,
+                            const char *name);
 extern int insert_resource(struct resource *parent, struct resource *new);
+extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
 extern int allocate_resource(struct resource *root, struct resource *new,
                             resource_size_t size, resource_size_t min,
                             resource_size_t max, resource_size_t align,
@@ -118,6 +122,10 @@ extern int allocate_resource(struct resource *root, struct resource *new,
 int adjust_resource(struct resource *res, resource_size_t start,
                    resource_size_t size);
 resource_size_t resource_alignment(struct resource *res);
+static inline resource_size_t resource_size(struct resource *res)
+{
+       return res->end - res->start + 1;
+}
 
 /* Convenience shorthand with allocation */
 #define request_region(start,n,name)   __request_region(&ioport_resource, (start), (n), (name))
@@ -161,6 +169,7 @@ extern struct resource * __devm_request_region(struct device *dev,
 
 extern void __devm_release_region(struct device *dev, struct resource *parent,
                                  resource_size_t start, resource_size_t n);
+extern int iomem_map_sanity_check(resource_size_t addr, unsigned long size);
 
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_IOPORT_H */