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Linux/include/linux/of_reserved_mem.h

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  1 #ifndef __OF_RESERVED_MEM_H
  2 #define __OF_RESERVED_MEM_H
  3 
  4 struct device;
  5 struct of_phandle_args;
  6 struct reserved_mem_ops;
  7 
  8 struct reserved_mem {
  9         const char                      *name;
 10         unsigned long                   fdt_node;
 11         unsigned long                   phandle;
 12         const struct reserved_mem_ops   *ops;
 13         phys_addr_t                     base;
 14         phys_addr_t                     size;
 15         void                            *priv;
 16 };
 17 
 18 struct reserved_mem_ops {
 19         int     (*device_init)(struct reserved_mem *rmem,
 20                                struct device *dev);
 21         void    (*device_release)(struct reserved_mem *rmem,
 22                                   struct device *dev);
 23 };
 24 
 25 typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
 26 
 27 #define RESERVEDMEM_OF_DECLARE(name, compat, init)                      \
 28         _OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
 29 
 30 #ifdef CONFIG_OF_RESERVED_MEM
 31 int of_reserved_mem_device_init(struct device *dev);
 32 void of_reserved_mem_device_release(struct device *dev);
 33 
 34 void fdt_init_reserved_mem(void);
 35 void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
 36                                phys_addr_t base, phys_addr_t size);
 37 #else
 38 static inline int of_reserved_mem_device_init(struct device *dev)
 39 {
 40         return -ENOSYS;
 41 }
 42 static inline void of_reserved_mem_device_release(struct device *pdev) { }
 43 
 44 static inline void fdt_init_reserved_mem(void) { }
 45 static inline void fdt_reserved_mem_save_node(unsigned long node,
 46                 const char *uname, phys_addr_t base, phys_addr_t size) { }
 47 #endif
 48 
 49 #endif /* __OF_RESERVED_MEM_H */
 50 

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