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struct resource {
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struct resource {
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	resource_size_t start;
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	resource_size_t start;
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	resource_size_t end;
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	resource_size_t end;
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	const char *name;
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	const char *name;
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	unsigned long flags;
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	unsigned long flags;
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	unsigned long desc;
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	struct resource *parent, *sibling, *child;
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	struct resource *parent, *sibling, *child;
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};
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};
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/*
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/*
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#define IORESOURCE_MEM_64	0x00100000
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#define IORESOURCE_MEM_64	0x00100000
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#define IORESOURCE_WINDOW	0x00200000	/* forwarded by bridge */
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#define IORESOURCE_WINDOW	0x00200000	/* forwarded by bridge */
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#define IORESOURCE_MUXED	0x00400000	/* Resource is software muxed */
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#define IORESOURCE_EXT_TYPE_BITS 0x01000000	/* Resource extended types */
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#define IORESOURCE_MUXED	0x00400000	/* Resource is software muxed */
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#define IORESOURCE_SYSRAM	0x01000000	/* System RAM (modifier) */
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#define IORESOURCE_EXCLUSIVE	0x08000000	/* Userland may not map this resource */
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#define IORESOURCE_EXCLUSIVE	0x08000000	/* Userland may not map this resource */
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#define IORESOURCE_DISABLED	0x10000000
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#define IORESOURCE_DISABLED	0x10000000
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#define IORESOURCE_UNSET	0x20000000	/* No address assigned yet */
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#define IORESOURCE_UNSET	0x20000000	/* No address assigned yet */
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#define IORESOURCE_AUTO		0x40000000
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#define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy */
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#define IORESOURCE_AUTO		0x40000000
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/* I/O resource extended types */
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#define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy */
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#define IORESOURCE_SYSTEM_RAM		(IORESOURCE_MEM|IORESOURCE_SYSRAM)
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/* PnP IRQ specific bits (IORESOURCE_BITS) */
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/* PnP IRQ specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_IRQ_HIGHEDGE		(1<<0)
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#define IORESOURCE_IRQ_HIGHEDGE		(1<<0)
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#define IORESOURCE_IO_FIXED		(1<<1)
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#define IORESOURCE_IO_FIXED		(1<<1)
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#define IORESOURCE_IO_SPARSE		(1<<2)
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#define IORESOURCE_IO_SPARSE		(1<<2)
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/* PCI ROM control bits (IORESOURCE_BITS) */
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/* PCI ROM control bits (IORESOURCE_BITS) */
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#define IORESOURCE_ROM_ENABLE		(1<<0)	/* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
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#define IORESOURCE_ROM_ENABLE		(1<<0)	/* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
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#define IORESOURCE_ROM_SHADOW		(1<<1)	/* ROM is copy at C000:0 */
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#define IORESOURCE_ROM_COPY		(1<<2)	/* ROM is alloc'd copy, resource field overlaid */
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#define IORESOURCE_ROM_BIOS_COPY	(1<<3)	/* ROM is BIOS copy, resource field overlaid */
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#define IORESOURCE_ROM_SHADOW		(1<<1)	/* Use RAM image, not ROM BAR */
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/* PCI control bits.  Shares IORESOURCE_BITS with above PCI ROM.  */
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#define IORESOURCE_PCI_FIXED		(1<<4)	/* Do not move resource */
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/*
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 * I/O Resource Descriptors
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 *
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 * Descriptors are used by walk_iomem_res_desc() and region_intersects()
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 * for searching a specific resource range in the iomem table.  Assign
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 * a new descriptor when a resource range supports the search interfaces.
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 * Otherwise, resource.desc must be set to IORES_DESC_NONE (0).
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 */
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enum {
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	IORES_DESC_NONE				= 0,
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	IORES_DESC_CRASH_KERNEL			= 1,
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	IORES_DESC_ACPI_TABLES			= 2,
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	IORES_DESC_ACPI_NV_STORAGE		= 3,
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/* PCI control bits.  Shares IORESOURCE_BITS with above PCI ROM.  */
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	IORES_DESC_PERSISTENT_MEMORY		= 4,
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#define IORESOURCE_PCI_FIXED		(1<<4)	/* Do not move resource */
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	IORES_DESC_PERSISTENT_MEMORY_LEGACY	= 5,
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};
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/* helpers to define resources */
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/* helpers to define resources */
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#define DEFINE_RES_NAMED(_start, _size, _name, _flags)			\
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#define DEFINE_RES_NAMED(_start, _size, _name, _flags)			\
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	{								\
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	{								\
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		.start = (_start),					\
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		.start = (_start),					\
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		.end = (_start) + (_size) - 1,				\
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		.end = (_start) + (_size) - 1,				\
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		.name = (_name),					\
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		.name = (_name),					\
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		.flags = (_flags),					\
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		.flags = (_flags),					\
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		.desc = IORES_DESC_NONE,				\
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			     resource_size_t start, resource_size_t end,
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			     resource_size_t start, resource_size_t end,
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			     const char *name);
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			     const char *name);
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extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
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extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
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extern int insert_resource(struct resource *parent, struct resource *new);
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extern int insert_resource(struct resource *parent, struct resource *new);
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extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
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extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
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extern int remove_resource(struct resource *old);
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extern void arch_remove_reservations(struct resource *avail);
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extern void arch_remove_reservations(struct resource *avail);
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extern int allocate_resource(struct resource *root, struct resource *new,
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extern int allocate_resource(struct resource *root, struct resource *new,
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			     resource_size_t size, resource_size_t min,
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			     resource_size_t size, resource_size_t min,
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			     resource_size_t max, resource_size_t align,
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			     resource_size_t max, resource_size_t align,
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			     resource_size_t (*alignf)(void *,
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			     resource_size_t (*alignf)(void *,
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}
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}
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static inline unsigned long resource_type(const struct resource *res)
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static inline unsigned long resource_type(const struct resource *res)
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{
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{
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	return res->flags & IORESOURCE_TYPE_BITS;
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	return res->flags & IORESOURCE_TYPE_BITS;
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}
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}
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static inline unsigned long resource_ext_type(const struct resource *res)
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{
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	return res->flags & IORESOURCE_EXT_TYPE_BITS;
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}
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/* True iff r1 completely contains r2 */
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/* True iff r1 completely contains r2 */
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static inline bool resource_contains(struct resource *r1, struct resource *r2)
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static inline bool resource_contains(struct resource *r1, struct resource *r2)
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{
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{
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	if (resource_type(r1) != resource_type(r2))
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	if (resource_type(r1) != resource_type(r2))
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		return false;
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		return false;