cudbg_zlib.h

/*
 *  Copyright (C) 2018 Chelsio Communications.  All rights reserved.
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms and conditions of the GNU General Public License,
 *  version 2, as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope 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.
 *
 *  The full GNU General Public License is included in this distribution in
 *  the file called "COPYING".
 *
 */

#ifndef __CUDBG_ZLIB_H__
#define __CUDBG_ZLIB_H__

#include <linux/zlib.h>

#define CUDBG_ZLIB_COMPRESS_ID 17
#define CUDBG_ZLIB_WIN_BITS 12
#define CUDBG_ZLIB_MEM_LVL 4

struct cudbg_compress_hdr {
	u32 compress_id;
	u64 decompress_size;
	u64 compress_size;
	u64 rsvd[32];
};

static inline int cudbg_get_workspace_size(void)
{
#ifdef CONFIG_ZLIB_DEFLATE
	return zlib_deflate_workspacesize(CUDBG_ZLIB_WIN_BITS,
					  CUDBG_ZLIB_MEM_LVL);
#else
	return 0;
#endif /* CONFIG_ZLIB_DEFLATE */
}

#ifndef CONFIG_ZLIB_DEFLATE
static inline int cudbg_compress_buff(struct cudbg_init *pdbg_init,
				      struct cudbg_buffer *pin_buff,
				      struct cudbg_buffer *pout_buff)
{
	return 0;
}
#else
int cudbg_compress_buff(struct cudbg_init *pdbg_init,
			struct cudbg_buffer *pin_buff,
			struct cudbg_buffer *pout_buff);
#endif /* CONFIG_ZLIB_DEFLATE */
#endif /* __CUDBG_ZLIB_H__ */