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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-02-27 21:51:47 -0600 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2008-02-29 13:15:55 +0100 |
| commit | 4ed6552f715983bfc7d212c1199a1f796f1144ad (patch) | |
| tree | 9588ceff4adbabc534b5621ff3c6e2f8a3c7aa6e /include/lmb.h | |
| parent | 4648c2e7a173b0d7f17bef4adaa0623090c9e904 (diff) | |
| download | u-boot-4ed6552f715983bfc7d212c1199a1f796f1144ad.tar.gz | |
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images
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>
Diffstat (limited to 'include/lmb.h')
| -rw-r--r-- | include/lmb.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/lmb.h b/include/lmb.h new file mode 100644 index 0000000000..cc64cbbc73 --- /dev/null +++ b/include/lmb.h @@ -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 */ |