dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 08:42:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images

Browse Source 
Introduce the LMB lib used on PPC in the kernel as a clean way to manage
the memory spaces used by various boot images and structures.  This code
will allow us to simplify the code in bootm and its support functions.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2008-02-27 21:51:47 -06:00
committed by Marian Balakowicz
parent 4648c2e7a1
commit 4ed6552f71
5 changed files with 351 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
include/lmb.h Normal file
View File

@@ -0,0 +1,54 @@
#ifndef _LINUX_LMB_H
#define _LINUX_LMB_H
#ifdef __KERNEL__
#include <asm/types.h>
/*
* Logical memory blocks.
*
* Copyright (C) 2001 Peter Bergner, IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#define MAX_LMB_REGIONS 8
struct lmb_property {
ulong base;
ulong size;
};
struct lmb_region {
unsigned long cnt;
ulong size;
struct lmb_property region[MAX_LMB_REGIONS+1];
};
struct lmb {
struct lmb_region memory;
struct lmb_region reserved;
};
extern struct lmb lmb;
extern void lmb_init(struct lmb *lmb);
extern long lmb_add(struct lmb *lmb, ulong base, ulong size);
extern long lmb_reserve(struct lmb *lmb, ulong base, ulong size);
extern ulong lmb_alloc(struct lmb *lmb, ulong size, ulong align);
extern ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr);
extern ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr);
extern int lmb_is_reserved(struct lmb *lmb, ulong addr);
extern void lmb_dump_all(struct lmb *lmb);
static inline ulong
lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
{
return type->region[region_nr].size;
}
#endif /* __KERNEL__ */
#endif /* _LINUX_LMB_H */