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         const struct reserved_mem_ops   *ops;
  12         phys_addr_t                     base;
  13         phys_addr_t                     size;
  14         void                            *priv;
  15 };
  16
  17 struct reserved_mem_ops {
  18         void    (*device_init)(struct reserved_mem *rmem,
  19                                struct device *dev);
  20         void    (*device_release)(struct reserved_mem *rmem,
  21                                   struct device *dev);
  22 };
  23
  24 typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem,
  25                                       unsigned long node, const char *uname);
  26
  27 #ifdef CONFIG_OF_RESERVED_MEM
  28 void fdt_init_reserved_mem(void);
  29 void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
  30                                phys_addr_t base, phys_addr_t size);
  31
  32 #define RESERVEDMEM_OF_DECLARE(name, compat, init)                      \
  33         static const struct of_device_id __reservedmem_of_table_##name  \
  34                 __used __section(__reservedmem_of_table)                \
  35                  = { .compatible = compat,                              \
  36                      .data = (init == (reservedmem_of_init_fn)NULL) ?   \
  37                                 init : init }
  38
  39 #else
  40 static inline void fdt_init_reserved_mem(void) { }
  41 static inline void fdt_reserved_mem_save_node(unsigned long node,
  42                 const char *uname, phys_addr_t base, phys_addr_t size) { }
  43
  44 #define RESERVEDMEM_OF_DECLARE(name, compat, init)                      \
  45         static const struct of_device_id __reservedmem_of_table_##name  \
  46                 __attribute__((unused))                                 \
  47                  = { .compatible = compat,                              \
  48                      .data = (init == (reservedmem_of_init_fn)NULL) ?   \
  49                                 init : init }
  50
  51 #endif
  52
  53 #endif /* __OF_RESERVED_MEM_H */