Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 961e35c..1dafc7c 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -47,20 +47,38 @@
/* Types for control the zone type of onlined and offlined memory */
enum {
- MMOP_OFFLINE = -1,
- MMOP_ONLINE_KEEP,
+ /* Offline the memory. */
+ MMOP_OFFLINE = 0,
+ /* Online the memory. Zone depends, see default_zone_for_pfn(). */
+ MMOP_ONLINE,
+ /* Online the memory to ZONE_NORMAL. */
MMOP_ONLINE_KERNEL,
+ /* Online the memory to ZONE_MOVABLE. */
MMOP_ONLINE_MOVABLE,
};
+/* Flags for add_memory() and friends to specify memory hotplug details. */
+typedef int __bitwise mhp_t;
+
+/* No special request */
+#define MHP_NONE ((__force mhp_t)0)
/*
- * Restrictions for the memory hotplug:
- * flags: MHP_ flags
- * altmap: alternative allocator for memmap array
+ * Allow merging of the added System RAM resource with adjacent,
+ * mergeable resources. After a successful call to add_memory_resource()
+ * with this flag set, the resource pointer must no longer be used as it
+ * might be stale, or the resource might have changed.
*/
-struct mhp_restrictions {
- unsigned long flags;
+#define MEMHP_MERGE_RESOURCE ((__force mhp_t)BIT(0))
+
+/*
+ * Extended parameters for memory hotplug:
+ * altmap: alternative allocator for memmap array (optional)
+ * pgprot: page protection flags to apply to newly created page tables
+ * (required)
+ */
+struct mhp_params {
struct vmem_altmap *altmap;
+ pgprot_t pgprot;
};
/*
@@ -94,28 +112,29 @@
extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
/* VM interface that may be used by firmware interface */
-extern int online_pages(unsigned long, unsigned long, int);
-extern int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn,
- unsigned long *valid_start, unsigned long *valid_end);
-extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
- unsigned long end_pfn);
+extern int online_pages(unsigned long pfn, unsigned long nr_pages,
+ int online_type, int nid);
+extern struct zone *test_pages_in_a_zone(unsigned long start_pfn,
+ unsigned long end_pfn);
+extern void __offline_isolated_pages(unsigned long start_pfn,
+ unsigned long end_pfn);
typedef void (*online_page_callback_t)(struct page *page, unsigned int order);
+extern void generic_online_page(struct page *page, unsigned int order);
extern int set_online_page_callback(online_page_callback_t callback);
extern int restore_online_page_callback(online_page_callback_t callback);
-extern void __online_page_set_limits(struct page *page);
-extern void __online_page_increment_counters(struct page *page);
-extern void __online_page_free(struct page *page);
-
extern int try_online_node(int nid);
extern int arch_add_memory(int nid, u64 start, u64 size,
- struct mhp_restrictions *restrictions);
+ struct mhp_params *params);
extern u64 max_mem_size;
-extern bool memhp_auto_online;
+extern int memhp_online_type_from_str(const char *str);
+
+/* Default online_type (MMOP_*) when new memory blocks are added. */
+extern int memhp_default_online_type;
/* If movable_node boot option specified */
extern bool movable_node_enabled;
static inline bool movable_node_is_enabled(void)
@@ -130,28 +149,19 @@
/* reasonably generic interface to expand the physical pages */
extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
- struct mhp_restrictions *restrictions);
+ struct mhp_params *params);
#ifndef CONFIG_ARCH_HAS_ADD_PAGES
static inline int add_pages(int nid, unsigned long start_pfn,
- unsigned long nr_pages, struct mhp_restrictions *restrictions)
+ unsigned long nr_pages, struct mhp_params *params)
{
- return __add_pages(nid, start_pfn, nr_pages, restrictions);
+ return __add_pages(nid, start_pfn, nr_pages, params);
}
#else /* ARCH_HAS_ADD_PAGES */
int add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
- struct mhp_restrictions *restrictions);
+ struct mhp_params *params);
#endif /* ARCH_HAS_ADD_PAGES */
-#ifdef CONFIG_NUMA
-extern int memory_add_physaddr_to_nid(u64 start);
-#else
-static inline int memory_add_physaddr_to_nid(u64 start)
-{
- return 0;
-}
-#endif
-
#ifdef CONFIG_HAVE_ARCH_NODEDATA_EXTENSION
/*
* For supporting node-hotadd, we have to allocate a new pgdat.
@@ -229,9 +239,6 @@
void mem_hotplug_begin(void);
void mem_hotplug_done(void);
-extern void set_zone_contiguous(struct zone *zone);
-extern void clear_zone_contiguous(struct zone *zone);
-
#else /* ! CONFIG_MEMORY_HOTPLUG */
#define pfn_to_online_page(pfn) \
({ \
@@ -253,13 +260,6 @@
static inline void zone_span_writeunlock(struct zone *zone) {}
static inline void zone_seqlock_init(struct zone *zone) {}
-static inline int mhp_notimplemented(const char *func)
-{
- printk(KERN_WARNING "%s() called, with CONFIG_MEMORY_HOTPLUG disabled\n", func);
- dump_stack();
- return -ENOSYS;
-}
-
static inline void register_page_bootmem_info_node(struct pglist_data *pgdat)
{
}
@@ -311,19 +311,13 @@
#ifdef CONFIG_MEMORY_HOTREMOVE
-extern bool is_mem_section_removable(unsigned long pfn, unsigned long nr_pages);
extern void try_offline_node(int nid);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern int remove_memory(int nid, u64 start, u64 size);
extern void __remove_memory(int nid, u64 start, u64 size);
+extern int offline_and_remove_memory(int nid, u64 start, u64 size);
#else
-static inline bool is_mem_section_removable(unsigned long pfn,
- unsigned long nr_pages)
-{
- return false;
-}
-
static inline void try_offline_node(int nid) {}
static inline int offline_pages(unsigned long start_pfn, unsigned long nr_pages)
@@ -339,12 +333,21 @@
static inline void __remove_memory(int nid, u64 start, u64 size) {}
#endif /* CONFIG_MEMORY_HOTREMOVE */
+extern void set_zone_contiguous(struct zone *zone);
+extern void clear_zone_contiguous(struct zone *zone);
+
+#ifdef CONFIG_MEMORY_HOTPLUG
extern void __ref free_area_init_core_hotplug(int nid);
-extern int __add_memory(int nid, u64 start, u64 size);
-extern int add_memory(int nid, u64 start, u64 size);
-extern int add_memory_resource(int nid, struct resource *resource);
+extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
+extern int add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
+extern int add_memory_resource(int nid, struct resource *resource,
+ mhp_t mhp_flags);
+extern int add_memory_driver_managed(int nid, u64 start, u64 size,
+ const char *resource_name,
+ mhp_t mhp_flags);
extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,
- unsigned long nr_pages, struct vmem_altmap *altmap);
+ unsigned long nr_pages,
+ struct vmem_altmap *altmap, int migratetype);
extern void remove_pfn_range_from_zone(struct zone *zone,
unsigned long start_pfn,
unsigned long nr_pages);
@@ -356,8 +359,8 @@
unsigned long map_offset, struct vmem_altmap *altmap);
extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
unsigned long pnum);
-extern bool allow_online_pfn_range(int nid, unsigned long pfn, unsigned long nr_pages,
- int online_type);
extern struct zone *zone_for_pfn_range(int online_type, int nid,
unsigned long start_pfn, unsigned long nr_pages);
+#endif /* CONFIG_MEMORY_HOTPLUG */
+
#endif /* __LINUX_MEMORY_HOTPLUG_H */