diff options
Diffstat (limited to 'include/linux/memblock.h')
| -rw-r--r-- | include/linux/memblock.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 0215ffd63069..cc4b01972060 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -101,6 +101,9 @@ void __next_mem_range_rev(u64 *idx, int nid, ulong flags, struct memblock_type *type_b, phys_addr_t *out_start, phys_addr_t *out_end, int *out_nid); +void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start, + phys_addr_t *out_end); + /** * for_each_mem_range - iterate through memblock areas from type_a and not * included in type_b. Or just type_a if type_b is NULL. @@ -142,6 +145,21 @@ void __next_mem_range_rev(u64 *idx, int nid, ulong flags, __next_mem_range_rev(&i, nid, flags, type_a, type_b, \ p_start, p_end, p_nid)) +/** + * for_each_reserved_mem_region - iterate over all reserved memblock areas + * @i: u64 used as loop variable + * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL + * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL + * + * Walks over reserved areas of memblock. Available as soon as memblock + * is initialized. + */ +#define for_each_reserved_mem_region(i, p_start, p_end) \ + for (i = 0UL, \ + __next_reserved_mem_region(&i, p_start, p_end); \ + i != (u64)ULLONG_MAX; \ + __next_reserved_mem_region(&i, p_start, p_end)) + #ifdef CONFIG_MOVABLE_NODE static inline bool memblock_is_hotpluggable(struct memblock_region *m) { |