4c3f97276e
Introduce basic low level Arm TrustZone CryptoCell HW support. This first patch doesn't actually register any Crypto API transformations, these will follow up in the next patch. This first revision supports the CC 712 REE component. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */
|
|
|
|
#ifndef __CC_IVGEN_H__
|
|
#define __CC_IVGEN_H__
|
|
|
|
#include "cc_hw_queue_defs.h"
|
|
|
|
#define CC_IVPOOL_SEQ_LEN 8
|
|
|
|
/*!
|
|
* Allocates iv-pool and maps resources.
|
|
* This function generates the first IV pool.
|
|
*
|
|
* \param drvdata Driver's private context
|
|
*
|
|
* \return int Zero for success, negative value otherwise.
|
|
*/
|
|
int cc_ivgen_init(struct cc_drvdata *drvdata);
|
|
|
|
/*!
|
|
* Free iv-pool and ivgen context.
|
|
*
|
|
* \param drvdata
|
|
*/
|
|
void cc_ivgen_fini(struct cc_drvdata *drvdata);
|
|
|
|
/*!
|
|
* Generates the initial pool in SRAM.
|
|
* This function should be invoked when resuming DX driver.
|
|
*
|
|
* \param drvdata
|
|
*
|
|
* \return int Zero for success, negative value otherwise.
|
|
*/
|
|
int cc_init_iv_sram(struct cc_drvdata *drvdata);
|
|
|
|
/*!
|
|
* Acquires 16 Bytes IV from the iv-pool
|
|
*
|
|
* \param drvdata Driver private context
|
|
* \param iv_out_dma Array of physical IV out addresses
|
|
* \param iv_out_dma_len Length of iv_out_dma array (additional elements of
|
|
* iv_out_dma array are ignore)
|
|
* \param iv_out_size May be 8 or 16 bytes long
|
|
* \param iv_seq IN/OUT array to the descriptors sequence
|
|
* \param iv_seq_len IN/OUT pointer to the sequence length
|
|
*
|
|
* \return int Zero for success, negative value otherwise.
|
|
*/
|
|
int cc_get_iv(struct cc_drvdata *drvdata, dma_addr_t iv_out_dma[],
|
|
unsigned int iv_out_dma_len, unsigned int iv_out_size,
|
|
struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len);
|
|
|
|
#endif /*__CC_IVGEN_H__*/
|