#ifndef __SOUND_UTIL_MEM_H
#define __SOUND_UTIL_MEM_H

#include <linux/mutex.h>
/*
 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
 *
 *  Generic memory management routines for soundcard memory allocation
 *
 *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

/*
 * memory block
 */
struct snd_util_memblk {
	unsigned int size;		/* size of this block */
	unsigned int offset;		/* zero-offset of this block */
	struct list_head list;		/* link */
};

#define snd_util_memblk_argptr(blk)	(void*)((char*)(blk) + sizeof(struct snd_util_memblk))

/*
 * memory management information
 */
struct snd_util_memhdr {
	unsigned int size;		/* size of whole data */
	struct list_head block;		/* block linked-list header */
	int nblocks;			/* # of allocated blocks */
	unsigned int used;		/* used memory size */
	int block_extra_size;		/* extra data size of chunk */
	struct mutex block_mutex;	/* lock */
};

/*
 * prototypes
 */
struct snd_util_memhdr *snd_util_memhdr_new(int memsize);
void snd_util_memhdr_free(struct snd_util_memhdr *hdr);
struct snd_util_memblk *snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size);
int snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk);
int snd_util_mem_avail(struct snd_util_memhdr *hdr);

/* functions without mutex */
struct snd_util_memblk *__snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size);
void __snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk);
struct snd_util_memblk *__snd_util_memblk_new(struct snd_util_memhdr *hdr,
					      unsigned int units,
					      struct list_head *prev);

#endif /* __SOUND_UTIL_MEM_H */
nd/soc/intel/boards/skl_nau88l25_max98357a.c'>
<input type='hidden' name='id' value='cb9c68363efb6d1f950ec55fb06e031ee70db5fc'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/intel?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>intel</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/intel/boards?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>boards</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/intel/boards/skl_nau88l25_max98357a.c?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>skl_nau88l25_max98357a.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/intel/boards/skl_nau88l25_max98357a.c?id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>