tools headers UAPI: Sync linux/kvm.h with the kernel sources

[linux-2.6-microblaze.git] / include / linux / memory_hotplug.h

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 15acce5..7288aa5 100644 (file)
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -16,22 +16,7 @@ struct resource;
 struct vmem_altmap;
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-/*
- * Return page for the valid pfn only if the page is online. All pfn
- * walkers which rely on the fully initialized page->flags and others
- * should use this rather than pfn_valid && pfn_to_page
- */
-#define pfn_to_online_page(pfn)                                           \
-({                                                                \
-       struct page *___page = NULL;                               \
-       unsigned long ___pfn = pfn;                                \
-       unsigned long ___nr = pfn_to_section_nr(___pfn);           \
-                                                                  \
-       if (___nr < NR_MEM_SECTIONS && online_section_nr(___nr) && \
-           pfn_valid_within(___pfn))                              \
-               ___page = pfn_to_page(___pfn);                     \
-       ___page;                                                   \
-})
+struct page *pfn_to_online_page(unsigned long pfn);
 
 /*
  * Types for free bootmem stored in page->lru.next. These have to be in
@@ -68,7 +53,7 @@ typedef int __bitwise mhp_t;
  * with this flag set, the resource pointer must no longer be used as it
  * might be stale, or the resource might have changed.
  */
-#define MEMHP_MERGE_RESOURCE   ((__force mhp_t)BIT(0))
+#define MHP_MERGE_RESOURCE     ((__force mhp_t)BIT(0))
 
 /*
  * Extended parameters for memory hotplug:
@@ -81,6 +66,9 @@ struct mhp_params {
        pgprot_t pgprot;
 };
 
+bool mhp_range_allowed(u64 start, u64 size, bool need_mapping);
+struct range mhp_get_pluggable_range(bool need_mapping);
+
 /*
  * Zone resizing functions
  *
@@ -131,10 +119,10 @@ extern int arch_add_memory(int nid, u64 start, u64 size,
                           struct mhp_params *params);
 extern u64 max_mem_size;
 
-extern int memhp_online_type_from_str(const char *str);
+extern int mhp_online_type_from_str(const char *str);
 
 /* Default online_type (MMOP_*) when new memory blocks are added. */
-extern int memhp_default_online_type;
+extern int mhp_default_online_type;
 /* If movable_node boot option specified */
 extern bool movable_node_enabled;
 static inline bool movable_node_is_enabled(void)
@@ -281,6 +269,13 @@ static inline bool movable_node_is_enabled(void)
 }
 #endif /* ! CONFIG_MEMORY_HOTPLUG */
 
+/*
+ * Keep this declaration outside CONFIG_MEMORY_HOTPLUG as some
+ * platforms might override and use arch_get_mappable_range()
+ * for internal non memory hotplug purposes.
+ */
+struct range arch_get_mappable_range(void);
+
 #if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT)
 /*
  * pgdat resizing functions