include/linux/of_reserved_mem.h

   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 */