[mirror_ubuntu-artful-kernel.git] / include / linux / of_reserved_mem.h

#ifndef __OF_RESERVED_MEM_H
#define __OF_RESERVED_MEM_H

struct device;
struct of_phandle_args;
struct reserved_mem_ops;

struct reserved_mem {
	const char			*name;
	unsigned long			fdt_node;
	unsigned long			phandle;
	const struct reserved_mem_ops	*ops;
	phys_addr_t			base;
	phys_addr_t			size;
	void				*priv;
};

struct reserved_mem_ops {
	int	(*device_init)(struct reserved_mem *rmem,
			       struct device *dev);
	void	(*device_release)(struct reserved_mem *rmem,
				  struct device *dev);
};

typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);

#define RESERVEDMEM_OF_DECLARE(name, compat, init)			\
	_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)

#ifdef CONFIG_OF_RESERVED_MEM
int of_reserved_mem_device_init(struct device *dev);
void of_reserved_mem_device_release(struct device *dev);

int early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
					     phys_addr_t align,
					     phys_addr_t start,
					     phys_addr_t end,
					     bool nomap,
					     phys_addr_t *res_base);

void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
			       phys_addr_t base, phys_addr_t size);
#else
static inline int of_reserved_mem_device_init(struct device *dev)
{
	return -ENOSYS;
}
static inline void of_reserved_mem_device_release(struct device *pdev) { }

static inline void fdt_init_reserved_mem(void) { }
static inline void fdt_reserved_mem_save_node(unsigned long node,
		const char *uname, phys_addr_t base, phys_addr_t size) { }
#endif

#endif /* __OF_RESERVED_MEM_H */
Commit	Line	Data
3f0c8206 MS	1	#ifndef __OF_RESERVED_MEM_H
	2	#define __OF_RESERVED_MEM_H
	3
f618c470 MS	4	struct device;
	5	struct of_phandle_args;
	6	struct reserved_mem_ops;
	7
3f0c8206 MS	8	struct reserved_mem {
	9	const char *name;
	10	unsigned long fdt_node;
9dcfee01	11	unsigned long phandle;
f618c470	12	const struct reserved_mem_ops *ops;
3f0c8206 MS	13	phys_addr_t base;
3f0c8206 MS	14	phys_addr_t size;
f618c470 MS	15	void *priv;
	16	};
	17
	18	struct reserved_mem_ops {
47f29df7	19	int (device_init)(struct reserved_mem rmem,
f618c470 MS	20	struct device *dev);
	21	void (device_release)(struct reserved_mem rmem,
	22	struct device *dev);
3f0c8206 MS	23	};
3f0c8206 MS	24
9dd31075 RH	25	typedef int (reservedmem_of_init_fn)(struct reserved_mem rmem);
9dd31075 RH	26
54196ccb RH	27	#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
54196ccb RH	28	_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
f618c470	29
3f0c8206	30	#ifdef CONFIG_OF_RESERVED_MEM
47f29df7	31	int of_reserved_mem_device_init(struct device *dev);
9dcfee01 MS	32	void of_reserved_mem_device_release(struct device *dev);
9dcfee01 MS	33
06dfeef8 BD	34	int early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
	35	phys_addr_t align,
	36	phys_addr_t start,
	37	phys_addr_t end,
	38	bool nomap,
	39	phys_addr_t *res_base);
	40
3f0c8206 MS	41	void fdt_init_reserved_mem(void);
	42	void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
	43	phys_addr_t base, phys_addr_t size);
	44	#else
47f29df7 MS	45	static inline int of_reserved_mem_device_init(struct device *dev)
	46	{
	47	return -ENOSYS;
	48	}
9dcfee01 MS	49	static inline void of_reserved_mem_device_release(struct device *pdev) { }
9dcfee01 MS	50
3f0c8206 MS	51	static inline void fdt_init_reserved_mem(void) { }
	52	static inline void fdt_reserved_mem_save_node(unsigned long node,
	53	const char *uname, phys_addr_t base, phys_addr_t size) { }
	54	#endif
	55
	56	#endif /* __OF_RESERVED_MEM_H */