memmap.c File Reference

#include <linux/string.h>
#include <linux/firmware-map.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/bootmem.h>
#include <linux/slab.h>

Go to the source code of this file.

Data Structures
struct	firmware_map_entry
struct	memmap_attribute

Macros
#define	to_memmap_attr(_attr)   container_of(_attr, struct memmap_attribute, attr)
#define	to_memmap_entry(obj)   container_of(obj, struct firmware_map_entry, kobj)

Functions
int __meminit	firmware_map_add_hotplug (u64 start, u64 end, const char *type)
int __init	firmware_map_add_early (u64 start, u64 end, const char *type)
	late_initcall (firmware_memmap_init)

Macro Definition Documentation

#define to_memmap_attr

(

_attr

)

container_of(_attr, struct memmap_attribute, attr)

Definition at line 220 of file memmap.c.

#define to_memmap_entry

(

obj

)

container_of(obj, struct firmware_map_entry, kobj)

Definition at line 221 of file memmap.c.

Function Documentation

int __init firmware_map_add_early	(	u64	start,
		u64	end,
		const char *	type
	)

firmware_map_add_early() - Adds a firmware mapping entry. : Start of the memory range. : End of the memory range. : Type of the memory range.

Adds a firmware mapping entry. This function uses the bootmem allocator for memory allocation.

That function must be called before late_initcall.

Returns 0 on success, or -ENOMEM if no memory could be allocated.

Definition at line 188 of file memmap.c.

int __meminit firmware_map_add_hotplug	(	u64	start,
		u64	end,
		const char *	type
	)

firmware_map_add_hotplug() - Adds a firmware mapping entry when we do memory hotplug. : Start of the memory range. : End of the memory range (exclusive) : Type of the memory range.

Adds a firmware mapping entry. This function is for memory hotplug, it is similar to function firmware_map_add_early(). The only difference is that it will create the syfs entry dynamically.

Returns 0 on success, or -ENOMEM if no memory could be allocated.

Definition at line 160 of file memmap.c.

late_initcall

(

firmware_memmap_init

)