linux/drivers/crypto/ccree/cc_sram_mgr.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */

#include "cc_driver.h"
#include "cc_sram_mgr.h"

/**
 * cc_sram_mgr_init() - Initializes SRAM pool.
 *      The pool starts right at the beginning of SRAM.
 *      Returns zero for success, negative value otherwise.
 *
 * @drvdata: Associated device driver context
 *
 * Return:
 * 0 for success, negative error code for failure.
 */
int cc_sram_mgr_init(struct cc_drvdata *drvdata)
{ … }

/**
 * cc_sram_alloc() - Allocate buffer from SRAM pool.
 *
 * @drvdata: Associated device driver context
 * @size: The requested numer of bytes to allocate
 *
 * Return:
 * Address offset in SRAM or NULL_SRAM_ADDR for failure.
 */
u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size)
{ … }

/**
 * cc_set_sram_desc() - Create const descriptors sequence to
 *	set values in given array into SRAM.
 * Note: each const value can't exceed word size.
 *
 * @src:	  A pointer to array of words to set as consts.
 * @dst:	  The target SRAM buffer to set into
 * @nelement:	  The number of words in "src" array
 * @seq:	  A pointer to the given IN/OUT descriptor sequence
 * @seq_len:	  A pointer to the given IN/OUT sequence length
 */
void cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement,
		      struct cc_hw_desc *seq, unsigned int *seq_len)
{ … }