diff options
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 0000000..cc64cbb --- /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 */ |