21 struct resource {  struct
27 	struct resource *parent, *sibling, *child;  argument
33  * PCI devices expose these flags to userspace in the "resource" sysfs file,
38 #define IORESOURCE_TYPE_BITS	0x00001f00	/* Resource type */
57 #define IORESOURCE_MUXED	0x00400000	/* Resource is software muxed */
59 #define IORESOURCE_EXT_TYPE_BITS 0x01000000	/* Resource extended types */
64 #define IORESOURCE_SYSRAM_MERGEABLE		0x04000000 /* Resource can be merged. */
66 #define IORESOURCE_EXCLUSIVE	0x08000000	/* Userland may not map this resource */
71 #define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy */
73 /* I/O resource extended types */
124 #define IORESOURCE_PCI_FIXED		(1<<4)	/* Do not move resource */
128  * I/O Resource Descriptors
131  * for searching a specific resource range in the iomem table.  Assign
132  * a new descriptor when a resource range supports the search interfaces.
133  * Otherwise, resource.desc must be set to IORES_DESC_NONE (0).
158 (struct resource) {							\
192  * typedef resource_alignf - Resource alignment callback
194  * @res:	Resource candidate range (an empty resource space)
198  * Callback allows calculating resource placement and alignment beyond min,
201  * Return: Start address for the resource.
204 					   const struct resource *res,
210  *				resource space
228 extern struct resource ioport_resource;
229 extern struct resource iomem_resource;
231 extern struct resource *request_resource_conflict(struct resource *root, struct resource *new);
232 extern int request_resource(struct resource *root, struct resource *new);
233 extern int release_resource(struct resource *new);
234 void release_child_resources(struct resource *new);
235 extern void reserve_region_with_split(struct resource *root,
238 extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
239 extern int insert_resource(struct resource *parent, struct resource *new);
240 extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
241 extern int remove_resource(struct resource *old);
242 extern void arch_remove_reservations(struct resource *avail);
243 extern int allocate_resource(struct resource *root, struct resource *new,
248 struct resource *lookup_resource(struct resource *root, resource_size_t start);
249 int adjust_resource(struct resource *res, resource_size_t start,
251 resource_size_t resource_alignment(struct resource *res);
254  * resource_set_size - Calculate resource end address from size and start
255  * @res: Resource descriptor
256  * @size: Size of the resource
263 static inline void resource_set_size(struct resource *res, resource_size_t size)  in resource_set_size()
269  * resource_set_range - Set resource start and end addresses
270  * @res: Resource descriptor
271  * @start: Start address for the resource
272  * @size: Size of the resource
276 static inline void resource_set_range(struct resource *res,  in resource_set_range()
284 static inline resource_size_t resource_size(const struct resource *res)  in resource_size()
288 static inline unsigned long resource_type(const struct resource *res)  in resource_type()
292 static inline unsigned long resource_ext_type(const struct resource *res)  in resource_ext_type()
297 static inline bool resource_contains(const struct resource *r1, const struct resource *r2)  in resource_contains()
307 static inline bool resource_overlaps(const struct resource *r1, const struct resource *r2)  in resource_overlaps()
312 static inline bool resource_intersection(const struct resource *r1, const struct resource *r2,  in resource_intersection()
313 					 struct resource *r)  in resource_intersection()
322 static inline bool resource_union(const struct resource *r1, const struct resource *r2,  in resource_union()
323 				  struct resource *r)  in resource_union()
332 int find_resource_space(struct resource *root, struct resource *new,
346 extern struct resource * __request_region(struct resource *,
355 extern void __release_region(struct resource *, resource_size_t,
361 extern void merge_system_ram_resource(struct resource *res);
367 extern int devm_request_resource(struct device *dev, struct resource *root,
368 				 struct resource *new);
369 extern void devm_release_resource(struct device *dev, struct resource *new);
376 extern struct resource * __devm_request_region(struct device *dev,
377 				struct resource *parent, resource_size_t start,
385 extern void __devm_release_region(struct device *dev, struct resource *parent,
389 extern bool resource_is_exclusive(struct resource *resource, u64 addr,
397 	     int (*func)(struct resource *, void *));
400 		    int (*func)(struct resource *, void *));
403 			int (*func)(struct resource *, void *));
406 		    void *arg, int (*func)(struct resource *, void *));
408 struct resource *devm_request_free_mem_region(struct device *dev,
409 		struct resource *base, unsigned long size);
410 struct resource *request_free_mem_region(struct resource *base,
412 struct resource *alloc_free_mem_region(struct resource *base,
415 static inline void irqresource_disabled(struct resource *res, u32 irq)  in irqresource_disabled()