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authorPaul Mundt <lethal@linux-sh.org>2011-01-13 09:06:28 +0300
committerPaul Mundt <lethal@linux-sh.org>2011-01-13 09:06:28 +0300
commitf43dc23d5ea91fca257be02138a255f02d98e806 (patch)
treeb29722f6e965316e90ac97abf79923ced250dc21 /include/linux/memory.h
parentf8e53553f452dcbf67cb89c8cba63a1cd6eb4cc0 (diff)
parent4162cf64973df51fc885825bc9ca4d055891c49f (diff)
downloadlinux-f43dc23d5ea91fca257be02138a255f02d98e806.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework
Conflicts: arch/sh/kernel/cpu/sh2/setup-sh7619.c arch/sh/kernel/cpu/sh2a/setup-mxg.c arch/sh/kernel/cpu/sh2a/setup-sh7201.c arch/sh/kernel/cpu/sh2a/setup-sh7203.c arch/sh/kernel/cpu/sh2a/setup-sh7206.c arch/sh/kernel/cpu/sh3/setup-sh7705.c arch/sh/kernel/cpu/sh3/setup-sh770x.c arch/sh/kernel/cpu/sh3/setup-sh7710.c arch/sh/kernel/cpu/sh3/setup-sh7720.c arch/sh/kernel/cpu/sh4/setup-sh4-202.c arch/sh/kernel/cpu/sh4/setup-sh7750.c arch/sh/kernel/cpu/sh4/setup-sh7760.c arch/sh/kernel/cpu/sh4a/setup-sh7343.c arch/sh/kernel/cpu/sh4a/setup-sh7366.c arch/sh/kernel/cpu/sh4a/setup-sh7722.c arch/sh/kernel/cpu/sh4a/setup-sh7723.c arch/sh/kernel/cpu/sh4a/setup-sh7724.c arch/sh/kernel/cpu/sh4a/setup-sh7763.c arch/sh/kernel/cpu/sh4a/setup-sh7770.c arch/sh/kernel/cpu/sh4a/setup-sh7780.c arch/sh/kernel/cpu/sh4a/setup-sh7785.c arch/sh/kernel/cpu/sh4a/setup-sh7786.c arch/sh/kernel/cpu/sh4a/setup-shx3.c arch/sh/kernel/cpu/sh5/setup-sh5.c drivers/serial/sh-sci.c drivers/serial/sh-sci.h include/linux/serial_sci.h
Diffstat (limited to 'include/linux/memory.h')
-rw-r--r--include/linux/memory.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 37fa19b34ef5..06c1fa0a5c7b 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -23,6 +23,8 @@
struct memory_block {
unsigned long phys_index;
unsigned long state;
+ int section_count;
+
/*
* This serializes all state change requests. It isn't
* held during creation because the control files are
@@ -36,6 +38,8 @@ struct memory_block {
struct sys_device sysdev;
};
+int arch_get_memory_phys_device(unsigned long start_pfn);
+
/* 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 */
@@ -50,6 +54,19 @@ struct memory_notify {
int status_change_nid;
};
+/*
+ * During pageblock isolation, count the number of pages within the
+ * range [start_pfn, start_pfn + nr_pages) which are owned by code
+ * in the notifier chain.
+ */
+#define MEM_ISOLATE_COUNT (1<<0)
+
+struct memory_isolate_notify {
+ unsigned long start_pfn; /* Start of range to check */
+ unsigned int nr_pages; /* # pages in range to check */
+ unsigned int pages_found; /* # pages owned found by callbacks */
+};
+
struct notifier_block;
struct mem_section;
@@ -76,14 +93,30 @@ static inline int memory_notify(unsigned long val, void *v)
{
return 0;
}
+static inline int register_memory_isolate_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+static inline void unregister_memory_isolate_notifier(struct notifier_block *nb)
+{
+}
+static inline int memory_isolate_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_memory_isolate_notifier(struct notifier_block *nb);
+extern void unregister_memory_isolate_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 int memory_isolate_notify(unsigned long val, void *v);
+extern struct memory_block *find_memory_block_hinted(struct mem_section *,
+ struct memory_block *);
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 };