pfe/common/heapmgr.h

/*
 *  Copyright (c) 2009 Mindspeed Technologies, Inc.
 *
 *  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.

 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.

 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *
 */


#ifndef _HEAPMGR_H_
#define _HEAPMGR_H_

#include "types.h"


#define HEAP_MINSIZE		16
#define HEAP_MINSIZE_LOG2	4
#define	HEAP_MAXSIZE		(64*K)
#define	HEAP_MAXSIZE_LOG2	16

typedef struct HEAPBLOCK_POINTER_t {
	struct HEAPBLOCK_POINTER_t *linkF;
	struct HEAPBLOCK_POINTER_t *linkB;
} HEAPBLOCK_POINTER, *PHEAPBLOCK_POINTER;


typedef struct HEAPSTATS_t {
	U32 size;
	U32 free;
} HEAPSTATS;

typedef struct HEAPDESC_t {
	HEAPBLOCK_POINTER avail[HEAP_MAXSIZE_LOG2 - HEAP_MINSIZE_LOG2 + 1];
	U8	*heapstart;
	U32	heapsize;
	U32	heap_minsize;
	U32	heap_minsize_log2;
	U32	m;
	U8	*tag;
	U32	free;
	volatile HEAPSTATS	*stats;
} HEAPDESC, *PHEAPDESC;


HANDLE __Heap_Init(PHEAPDESC phd, PVOID heapstart, U32 heapsize, U32 maxblocksize, U32 minblocksize, void *heap_stats_baseaddr, U8 *ptags) __attribute__ ((noinline));
PVOID __Heap_Alloc(HANDLE heap_handle, U32 size) __attribute__ ((noinline));
void __Heap_Free(HANDLE heap_handle, PVOID blockp) __attribute__ ((noinline));

PVOID Heap_Alloc(U32 size)  __attribute__((section ("fast_path"))) __attribute__ ((noinline));
PVOID Heap_Alloc_ARAM(U32 size) __attribute__((section ("fast_path")))  __attribute__ ((noinline));
void Heap_Free(PVOID p) __attribute__((section ("fast_path")))  __attribute__ ((noinline));

#endif /* _HEAPMGR_H_ */