@@ -20,7 +20,13 @@
#define INIT_MEMBLOCK_REGIONS 128
#define INIT_PHYSMEM_REGIONS 4
-/* Definition of memblock flags. */
+/**
+ * enum memblock_flags - definition of memory region attributes
+ * @MEMBLOCK_NONE: no special request
+ * @MEMBLOCK_HOTPLUG: hotpluggable region
+ * @MEMBLOCK_MIRROR: mirrored region
+ * @MEMBLOCK_NOMAP: don't add to kernel direct mapping
+ */
enum memblock_flags {
MEMBLOCK_NONE = 0x0, /* No special request */
MEMBLOCK_HOTPLUG = 0x1, /* hotpluggable region */
@@ -28,6 +34,13 @@ enum memblock_flags {
MEMBLOCK_NOMAP = 0x4, /* don't add to kernel direct mapping */
};
+/**
+ * struct memblock_region - represents a memory region
+ * @base: physical address of the region
+ * @size: size of the region
+ * @flags: memory region attributes
+ * @nid: NUMA node id
+ */
struct memblock_region {
phys_addr_t base;
phys_addr_t size;
@@ -37,14 +50,30 @@ struct memblock_region {
#endif
};
+/**
+ * struct memblock_type - collection of memory regions of certain type
+ * @cnt: number of regions
+ * @max: size of the allocated array
+ * @total_size: size of all regions
+ * @regions: array of regions
+ * @name: the memory type symbolic name
+ */
struct memblock_type {
- unsigned long cnt; /* number of regions */
- unsigned long max; /* size of the allocated array */
- phys_addr_t total_size; /* size of all regions */
+ unsigned long cnt;
+ unsigned long max;
+ phys_addr_t total_size;
struct memblock_region *regions;
char *name;
};
+/**
+ * struct memblock - memblock allocator metadata
+ * @bottom_up: is bottom up direction?
+ * @current_limit: physical address of the current allocation limit
+ * @memory: usabe memory regions
+ * @reserved: reserved memory regions
+ * @physmem: all physical memory
+ */
struct memblock {
bool bottom_up; /* is bottom up direction? */
phys_addr_t current_limit;
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> --- include/linux/memblock.h | 37 +++++++++++++++++++++++++++++++++---- 1 file changed, 33 insertions(+), 4 deletions(-)