linux/drivers/crypto/caam/sg_sw_sec4.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * CAAM/SEC 4.x functions for using scatterlists in caam driver
 *
 * Copyright 2008-2011 Freescale Semiconductor, Inc.
 *
 */

#ifndef _SG_SW_SEC4_H_
#define _SG_SW_SEC4_H_

#include "ctrl.h"
#include "regs.h"
#include "sg_sw_qm2.h"
#include <soc/fsl/dpaa2-fd.h>

struct sec4_sg_entry { … };

/*
 * convert single dma address to h/w link table format
 */
static inline void dma_to_sec4_sg_one(struct sec4_sg_entry *sec4_sg_ptr,
				      dma_addr_t dma, u32 len, u16 offset)
{ … }

/*
 * convert scatterlist to h/w link table format
 * but does not have final bit; instead, returns last entry
 */
static inline struct sec4_sg_entry *
sg_to_sec4_sg(struct scatterlist *sg, int len,
	      struct sec4_sg_entry *sec4_sg_ptr, u16 offset)
{ … }

static inline void sg_to_sec4_set_last(struct sec4_sg_entry *sec4_sg_ptr)
{ … }

/*
 * convert scatterlist to h/w link table format
 * scatterlist must have been previously dma mapped
 */
static inline void sg_to_sec4_sg_last(struct scatterlist *sg, int len,
				      struct sec4_sg_entry *sec4_sg_ptr,
				      u16 offset)
{ … }

#endif /* _SG_SW_SEC4_H_ */