1 files changed, 102 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/include/linux/memory.h b/libdde_linux26/contrib/include/linux/memory.h
new file mode 100644
index 00000000..3fdc1080
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/memory.h
@@ -0,0 +1,102 @@
+/*
+ * include/linux/memory.h - generic memory definition
+ *
+ * This is mainly for topological representation. We define the
+ * basic "struct memory_block" here, which can be embedded in per-arch
+ * definitions or NUMA information.
+ *
+ * Basic handling of the devices is done in drivers/base/memory.c
+ * and system devices are handled in drivers/base/sys.c.
+ *
+ * Memory block are exported via sysfs in the class/memory/devices/
+ * directory.
+ *
+ */
+#ifndef _LINUX_MEMORY_H_
+#define _LINUX_MEMORY_H_
+
+#include <linux/sysdev.h>
+#include <linux/node.h>
+#include <linux/compiler.h>
+#include <linux/mutex.h>
+
+struct memory_block {
+	unsigned long phys_index;
+	unsigned long state;
+	/*
+	 * This serializes all state change requests.  It isn't
+	 * held during creation because the control files are
+	 * created long after the critical areas during
+	 * initialization.
+	 */
+	struct mutex state_mutex;
+	int phys_device;		/* to which fru does this belong? */
+	void *hw;			/* optional pointer to fw/hw data */
+	int (*phys_callback)(struct memory_block *);
+	struct sys_device sysdev;
+};
+
+/* These states are exposed to userspace as text strings in sysfs */
+#define	MEM_ONLINE		(1<<0) /* exposed to userspace */
+#define	MEM_GOING_OFFLINE	(1<<1) /* exposed to userspace */
+#define	MEM_OFFLINE		(1<<2) /* exposed to userspace */
+#define	MEM_GOING_ONLINE	(1<<3)
+#define	MEM_CANCEL_ONLINE	(1<<4)
+#define	MEM_CANCEL_OFFLINE	(1<<5)
+
+struct memory_notify {
+	unsigned long start_pfn;
+	unsigned long nr_pages;
+	int status_change_nid;
+};
+
+struct notifier_block;
+struct mem_section;
+
+/*
+ * Priorities for the hotplug memory callback routines (stored in decreasing
+ * order in the callback chain)
+ */
+#define SLAB_CALLBACK_PRI       1
+#define IPC_CALLBACK_PRI        10
+
+#ifndef CONFIG_MEMORY_HOTPLUG_SPARSE
+static inline int memory_dev_init(void)
+{
+	return 0;
+}
+static inline int register_memory_notifier(struct notifier_block *nb)
+{
+	return 0;
+}
+static inline void unregister_memory_notifier(struct notifier_block *nb)
+{
+}
+static inline int memory_notify(unsigned long val, void *v)
+{
+	return 0;
+}
+#else
+extern int register_memory_notifier(struct notifier_block *nb);
+extern void unregister_memory_notifier(struct notifier_block *nb);
+extern int register_new_memory(int, struct mem_section *);
+extern int unregister_memory_section(struct mem_section *);
+extern int memory_dev_init(void);
+extern int remove_memory_block(unsigned long, struct mem_section *, int);
+extern int memory_notify(unsigned long val, void *v);
+extern struct memory_block *find_memory_block(struct mem_section *);
+#define CONFIG_MEM_BLOCK_SIZE	(PAGES_PER_SECTION<<PAGE_SHIFT)
+enum mem_add_context { BOOT, HOTPLUG };
+#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+#define hotplug_memory_notifier(fn, pri) {			\
+	static __meminitdata struct notifier_block fn##_mem_nb =\
+		{ .notifier_call = fn, .priority = pri };	\
+	register_memory_notifier(&fn##_mem_nb);			\
+}
+#else
+#define hotplug_memory_notifier(fn, pri) do { } while (0)
+#endif
+
+#endif /* _LINUX_MEMORY_H_ */