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Diffstat (limited to 'arch/powerpc/mm/mem_pieces.h')
| -rw-r--r-- | arch/powerpc/mm/mem_pieces.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem_pieces.h b/arch/powerpc/mm/mem_pieces.h new file mode 100644 index 00000000000..e2b700dc7f1 --- /dev/null +++ b/arch/powerpc/mm/mem_pieces.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au> + * Changes to accommodate Power Macintoshes. + * Cort Dougan <cort@cs.nmt.edu> + * Rewrites. + * Grant Erickson <grant@lcse.umn.edu> + * General rework and split from mm/init.c. + * + * Module name: mem_pieces.h + * + * Description: + * Routines and data structures for manipulating and representing + * phyiscal memory extents (i.e. address/length pairs). + * + */ + +#ifndef __MEM_PIECES_H__ +#define __MEM_PIECES_H__ + +#include <asm/prom.h> + +#ifdef __cplusplus +extern "C" { +#endif + + +/* Type Definitions */ + +#define MEM_PIECES_MAX 32 + +struct mem_pieces { + int n_regions; + struct reg_property regions[MEM_PIECES_MAX]; +}; + +/* Function Prototypes */ + +extern void *mem_pieces_find(unsigned int size, unsigned int align); +extern void mem_pieces_remove(struct mem_pieces *mp, unsigned int start, + unsigned int size, int must_exist); +extern void mem_pieces_coalesce(struct mem_pieces *mp); +extern void mem_pieces_sort(struct mem_pieces *mp); + +#ifdef __cplusplus +} +#endif + +#endif /* __MEM_PIECES_H__ */ |