mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-21 18:14:48 +08:00
640035a2dc
Add a driver for the ZIP engine found on Cavium ThunderX SOCs. The ZIP engine supports hardware accelerated compression and decompression. It includes 2 independent ZIP cores and supports: - DEFLATE compression and decompression (RFC 1951) - LZS compression and decompression (RFC 2395 and ANSI X3.241-1994) - ADLER32 and CRC32 checksums for ZLIB (RFC 1950) and GZIP (RFC 1952) The ZIP engine is presented as a PCI device. It supports DMA and scatter-gather. Signed-off-by: Mahipal Challa <Mahipal.Challa@cavium.com> Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
/***********************license start************************************
|
|
* Copyright (c) 2003-2017 Cavium, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
|
*
|
|
* This file is provided under the terms of the Cavium License (see below)
|
|
* or under the terms of GNU General Public License, Version 2, as
|
|
* published by the Free Software Foundation. When using or redistributing
|
|
* this file, you may do so under either license.
|
|
*
|
|
* Cavium License: Redistribution and use in source and binary forms, with
|
|
* or without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* This Software, including technical data, may be subject to U.S. export
|
|
* control laws, including the U.S. Export Administration Act and its
|
|
* associated regulations, and may be subject to export or import
|
|
* regulations in other countries.
|
|
*
|
|
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
|
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
|
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
|
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
|
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
|
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
|
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
|
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
|
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
|
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
|
* WITH YOU.
|
|
***********************license end**************************************/
|
|
|
|
#ifndef __ZIP_MEM_H__
|
|
#define __ZIP_MEM_H__
|
|
|
|
/**
|
|
* zip_cmd_qbuf_free - Frees the cmd Queue buffer
|
|
* @zip: Pointer to zip device structure
|
|
* @q: Queue nmber to free buffer of
|
|
*/
|
|
void zip_cmd_qbuf_free(struct zip_device *zip, int q);
|
|
|
|
/**
|
|
* zip_cmd_qbuf_alloc - Allocates a Chunk/cmd buffer for ZIP Inst(cmd) Queue
|
|
* @zip: Pointer to zip device structure
|
|
* @q: Queue number to allocate bufffer to
|
|
* Return: 0 if successful, 1 otherwise
|
|
*/
|
|
int zip_cmd_qbuf_alloc(struct zip_device *zip, int q);
|
|
|
|
/**
|
|
* zip_data_buf_alloc - Allocates memory for a data bufffer
|
|
* @size: Size of the buffer to allocate
|
|
* Returns: Pointer to the buffer allocated
|
|
*/
|
|
u8 *zip_data_buf_alloc(u64 size);
|
|
|
|
/**
|
|
* zip_data_buf_free - Frees the memory of a data buffer
|
|
* @ptr: Pointer to the buffer
|
|
* @size: Buffer size
|
|
*/
|
|
void zip_data_buf_free(u8 *ptr, u64 size);
|
|
|
|
#endif
|