d96ae53091
A memmap is a directory in sysfs which includes 3 text files: start, end and type. For example: start: 0x100000 end: 0x7e7b1cff type: System RAM Interface firmware_map_add was not called explicitly. Remove it and add function firmware_map_add_hotplug as hotplug interface of memmap. Each memory entry has a memmap in sysfs, When we hot-add new memory, sysfs does not export memmap entry for it. We add a call in function add_memory to function firmware_map_add_hotplug. Add a new function add_sysfs_fw_map_entry() to create memmap entry, it will be called when initialize memmap and hot-add memory. [akpm@linux-foundation.org: un-kernedoc a no longer kerneldoc comment] Signed-off-by: Shaohui Zheng <shaohui.zheng@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
|
|
* include/linux/firmware-map.h:
|
|
* Copyright (C) 2008 SUSE LINUX Products GmbH
|
|
* by Bernhard Walle <bernhard.walle@gmx.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License v2.0 as published by
|
|
* the Free Software Foundation
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
#ifndef _LINUX_FIRMWARE_MAP_H
|
|
#define _LINUX_FIRMWARE_MAP_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/kobject.h>
|
|
|
|
/*
|
|
* provide a dummy interface if CONFIG_FIRMWARE_MEMMAP is disabled
|
|
*/
|
|
#ifdef CONFIG_FIRMWARE_MEMMAP
|
|
|
|
int firmware_map_add_early(u64 start, u64 end, const char *type);
|
|
int firmware_map_add_hotplug(u64 start, u64 end, const char *type);
|
|
|
|
#else /* CONFIG_FIRMWARE_MEMMAP */
|
|
|
|
static inline int firmware_map_add_early(u64 start, u64 end, const char *type)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int firmware_map_add_hotplug(u64 start, u64 end, const char *type)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_FIRMWARE_MEMMAP */
|
|
|
|
#endif /* _LINUX_FIRMWARE_MAP_H */
|