Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef __OF_RESERVED_MEM_H
2#define __OF_RESERVED_MEM_H
3
4struct device;
5struct of_phandle_args;
6struct reserved_mem_ops;
7
8struct 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
18struct 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
25typedef 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
31int of_reserved_mem_device_init(struct device *dev);
32void of_reserved_mem_device_release(struct device *dev);
33
34int 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
41void fdt_init_reserved_mem(void);
42void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
43 phys_addr_t base, phys_addr_t size);
44#else
45static inline int of_reserved_mem_device_init(struct device *dev)
46{
47 return -ENOSYS;
48}
49static inline void of_reserved_mem_device_release(struct device *pdev) { }
50
51static inline void fdt_init_reserved_mem(void) { }
52static 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 */