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-rw-r--r--include/linux/memblock.h55
1 files changed, 50 insertions, 5 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 77c60e52939..1ef66360f0b 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -19,9 +19,13 @@
#define INIT_MEMBLOCK_REGIONS 128
+/* Definition of memblock flags. */
+#define MEMBLOCK_HOTPLUG 0x1 /* hotpluggable region */
+
struct memblock_region {
phys_addr_t base;
phys_addr_t size;
+ unsigned long flags;
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int nid;
#endif
@@ -43,15 +47,21 @@ struct memblock {
extern struct memblock memblock;
extern int memblock_debug;
+#ifdef CONFIG_MOVABLE_NODE
+/* If movable_node boot option specified */
+extern bool movable_node_enabled;
+#endif /* CONFIG_MOVABLE_NODE */
#define memblock_dbg(fmt, ...) \
if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
-phys_addr_t memblock_find_in_range_node(phys_addr_t start, phys_addr_t end,
- phys_addr_t size, phys_addr_t align, int nid);
+phys_addr_t memblock_find_in_range_node(phys_addr_t size, phys_addr_t align,
+ phys_addr_t start, phys_addr_t end,
+ int nid);
phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
phys_addr_t size, phys_addr_t align);
phys_addr_t get_allocated_memblock_reserved_regions_info(phys_addr_t *addr);
+phys_addr_t get_allocated_memblock_memory_regions_info(phys_addr_t *addr);
void memblock_allow_resize(void);
int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid);
int memblock_add(phys_addr_t base, phys_addr_t size);
@@ -59,6 +69,28 @@ int memblock_remove(phys_addr_t base, phys_addr_t size);
int memblock_free(phys_addr_t base, phys_addr_t size);
int memblock_reserve(phys_addr_t base, phys_addr_t size);
void memblock_trim_memory(phys_addr_t align);
+int memblock_mark_hotplug(phys_addr_t base, phys_addr_t size);
+int memblock_clear_hotplug(phys_addr_t base, phys_addr_t size);
+#ifdef CONFIG_MOVABLE_NODE
+static inline bool memblock_is_hotpluggable(struct memblock_region *m)
+{
+ return m->flags & MEMBLOCK_HOTPLUG;
+}
+
+static inline bool movable_node_is_enabled(void)
+{
+ return movable_node_enabled;
+}
+#else
+static inline bool memblock_is_hotpluggable(struct memblock_region *m)
+{
+ return false;
+}
+static inline bool movable_node_is_enabled(void)
+{
+ return false;
+}
+#endif
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
@@ -87,7 +119,7 @@ void __next_free_mem_range(u64 *idx, int nid, phys_addr_t *out_start,
/**
* for_each_free_mem_range - iterate through free memblock areas
* @i: u64 used as loop variable
- * @nid: node selector, %MAX_NUMNODES for all nodes
+ * @nid: node selector, %NUMA_NO_NODE for all nodes
* @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
* @p_nid: ptr to int for nid of the range, can be %NULL
@@ -107,7 +139,7 @@ void __next_free_mem_range_rev(u64 *idx, int nid, phys_addr_t *out_start,
/**
* for_each_free_mem_range_reverse - rev-iterate through free memblock areas
* @i: u64 used as loop variable
- * @nid: node selector, %MAX_NUMNODES for all nodes
+ * @nid: node selector, %NUMA_NO_NODE for all nodes
* @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
* @p_nid: ptr to int for nid of the range, can be %NULL
@@ -121,8 +153,21 @@ void __next_free_mem_range_rev(u64 *idx, int nid, phys_addr_t *out_start,
i != (u64)ULLONG_MAX; \
__next_free_mem_range_rev(&i, nid, p_start, p_end, p_nid))
+static inline void memblock_set_region_flags(struct memblock_region *r,
+ unsigned long flags)
+{
+ r->flags |= flags;
+}
+
+static inline void memblock_clear_region_flags(struct memblock_region *r,
+ unsigned long flags)
+{
+ r->flags &= ~flags;
+}
+
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
-int memblock_set_node(phys_addr_t base, phys_addr_t size, int nid);
+int memblock_set_node(phys_addr_t base, phys_addr_t size,
+ struct memblock_type *type, int nid);
static inline void memblock_set_region_node(struct memblock_region *r, int nid)
{