/* * include/asm-ppc/rheap.h * * Header file for the implementation of a remote heap. * * Author: Pantelis Antoniou <panto@intracom.gr> * * 2004 (c) INTRACOM S.A. Greece. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #ifndef __ASM_PPC_RHEAP_H__ #define __ASM_PPC_RHEAP_H__ #include <linux/list.h> typedef struct _rh_block { struct list_head list; unsigned long start; int size; const char *owner; } rh_block_t; typedef struct _rh_info { unsigned int alignment; int max_blocks; int empty_slots; rh_block_t *block; struct list_head empty_list; struct list_head free_list; struct list_head taken_list; unsigned int flags; } rh_info_t; #define RHIF_STATIC_INFO 0x1 #define RHIF_STATIC_BLOCK 0x2 typedef struct _rh_stats { unsigned long start; int size; const char *owner; } rh_stats_t; #define RHGS_FREE 0 #define RHGS_TAKEN 1 /* Create a remote heap dynamically */ extern rh_info_t *rh_create(unsigned int alignment); /* Destroy a remote heap, created by rh_create() */ extern void rh_destroy(rh_info_t * info); /* Initialize in place a remote info block */ extern void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks, rh_block_t * block); /* Attach a free region to manage */ extern int rh_attach_region(rh_info_t * info, unsigned long start, int size); /* Detach a free region */ extern unsigned long rh_detach_region(rh_info_t * info, unsigned long start, int size); /* Allocate the given size from the remote heap (with alignment) */ extern unsigned long rh_alloc_align(rh_info_t * info, int size, int alignment, const char *owner); /* Allocate the given size from the remote heap */ extern unsigned long rh_alloc(rh_info_t * info, int size, const char *owner); /* Allocate the given size from the given address */ extern unsigned long rh_alloc_fixed(rh_info_t * info, unsigned long start, int size, const char *owner); /* Free the allocated area */ extern int rh_free(rh_info_t * info, unsigned long start); /* Get stats for debugging purposes */ extern int rh_get_stats(rh_info_t * info, int what, int max_stats, rh_stats_t * stats); /* Simple dump of remote heap info */ extern void rh_dump(rh_info_t * info); /* Set owner of taken block */ extern int rh_set_owner(rh_info_t * info, unsigned long start, const char *owner); #endif /* __ASM_PPC_RHEAP_H__ */