[linux-2.6-block.git] / drivers / crypto / allwinner / sun8i-ss / sun8i-ss.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * sun8i-ss.h - hardware cryptographic offloader for
 * Allwinner A80/A83T SoC
 *
 * Copyright (C) 2016-2019 Corentin LABBE <clabbe.montjoie@gmail.com>
 */
#include <crypto/aes.h>
#include <crypto/des.h>
#include <crypto/engine.h>
#include <crypto/rng.h>
#include <crypto/skcipher.h>
#include <linux/atomic.h>
#include <linux/debugfs.h>
#include <linux/crypto.h>
#include <crypto/internal/hash.h>
#include <crypto/md5.h>
#include <crypto/sha.h>

#define SS_START	1

#define SS_ENCRYPTION		0
#define SS_DECRYPTION		BIT(6)

#define SS_ALG_AES		0
#define SS_ALG_DES		(1 << 2)
#define SS_ALG_3DES		(2 << 2)
#define SS_ALG_MD5		(3 << 2)
#define SS_ALG_PRNG		(4 << 2)
#define SS_ALG_SHA1		(6 << 2)
#define SS_ALG_SHA224		(7 << 2)
#define SS_ALG_SHA256		(8 << 2)

#define SS_CTL_REG		0x00
#define SS_INT_CTL_REG		0x04
#define SS_INT_STA_REG		0x08
#define SS_KEY_ADR_REG		0x10
#define SS_IV_ADR_REG		0x18
#define SS_SRC_ADR_REG		0x20
#define SS_DST_ADR_REG		0x28
#define SS_LEN_ADR_REG		0x30

#define SS_ID_NOTSUPP		0xFF

#define SS_ID_CIPHER_AES	0
#define SS_ID_CIPHER_DES	1
#define SS_ID_CIPHER_DES3	2
#define SS_ID_CIPHER_MAX	3

#define SS_ID_OP_ECB	0
#define SS_ID_OP_CBC	1
#define SS_ID_OP_MAX	2

#define SS_AES_128BITS 0
#define SS_AES_192BITS 1
#define SS_AES_256BITS 2

#define SS_OP_ECB	0
#define SS_OP_CBC	(1 << 13)

#define SS_ID_HASH_MD5	0
#define SS_ID_HASH_SHA1	1
#define SS_ID_HASH_SHA224	2
#define SS_ID_HASH_SHA256	3
#define SS_ID_HASH_MAX	4

#define SS_FLOW0	BIT(30)
#define SS_FLOW1	BIT(31)

#define SS_PRNG_CONTINUE	BIT(18)

#define MAX_SG 8

#define MAXFLOW 2

#define SS_MAX_CLOCKS 2

#define SS_DIE_ID_SHIFT	20
#define SS_DIE_ID_MASK	0x07

#define PRNG_DATA_SIZE (160 / 8)
#define PRNG_SEED_SIZE DIV_ROUND_UP(175, 8)

/*
 * struct ss_clock - Describe clocks used by sun8i-ss
 * @name:       Name of clock needed by this variant
 * @freq:       Frequency to set for each clock
 * @max_freq:   Maximum frequency for each clock
 */
struct ss_clock {
	const char *name;
	unsigned long freq;
	unsigned long max_freq;
};

/*
 * struct ss_variant - Describe SS capability for each variant hardware
 * @alg_cipher:	list of supported ciphers. for each SS_ID_ this will give the
 *              coresponding SS_ALG_XXX value
 * @alg_hash:	list of supported hashes. for each SS_ID_ this will give the
 *              corresponding SS_ALG_XXX value
 * @op_mode:	list of supported block modes
 * @ss_clks:	list of clock needed by this variant
 */
struct ss_variant {
	char alg_cipher[SS_ID_CIPHER_MAX];
	char alg_hash[SS_ID_HASH_MAX];
	u32 op_mode[SS_ID_OP_MAX];
	struct ss_clock ss_clks[SS_MAX_CLOCKS];
};

struct sginfo {
	u32 addr;
	u32 len;
};

/*
 * struct sun8i_ss_flow - Information used by each flow
 * @engine:	ptr to the crypto_engine for this flow
 * @complete:	completion for the current task on this flow
 * @status:	set to 1 by interrupt if task is done
 * @stat_req:	number of request done by this flow
 */
struct sun8i_ss_flow {
	struct crypto_engine *engine;
	struct completion complete;
	int status;
#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	unsigned long stat_req;
#endif
};

/*
 * struct sun8i_ss_dev - main container for all this driver information
 * @base:	base address of SS
 * @ssclks:	clocks used by SS
 * @reset:	pointer to reset controller
 * @dev:	the platform device
 * @mlock:	Control access to device registers
 * @flows:	array of all flow
 * @flow:	flow to use in next request
 * @variant:	pointer to variant specific data
 * @dbgfs_dir:	Debugfs dentry for statistic directory
 * @dbgfs_stats: Debugfs dentry for statistic counters
 */
struct sun8i_ss_dev {
	void __iomem *base;
	struct clk *ssclks[SS_MAX_CLOCKS];
	struct reset_control *reset;
	struct device *dev;
	struct mutex mlock;
	struct sun8i_ss_flow *flows;
	atomic_t flow;
	const struct ss_variant *variant;
#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	struct dentry *dbgfs_dir;
	struct dentry *dbgfs_stats;
#endif
};

/*
 * struct sun8i_cipher_req_ctx - context for a skcipher request
 * @t_src:		list of mapped SGs with their size
 * @t_dst:		list of mapped SGs with their size
 * @p_key:		DMA address of the key
 * @p_iv:		DMA address of the IV
 * @method:		current algorithm for this request
 * @op_mode:		op_mode for this request
 * @op_dir:		direction (encrypt vs decrypt) for this request
 * @flow:		the flow to use for this request
 * @ivlen:		size of biv
 * @keylen:		keylen for this request
 * @biv:		buffer which contain the IV
 * @fallback_req:	request struct for invoking the fallback skcipher TFM
 */
struct sun8i_cipher_req_ctx {
	struct sginfo t_src[MAX_SG];
	struct sginfo t_dst[MAX_SG];
	u32 p_key;
	u32 p_iv;
	u32 method;
	u32 op_mode;
	u32 op_dir;
	int flow;
	unsigned int ivlen;
	unsigned int keylen;
	void *biv;
	struct skcipher_request fallback_req;   // keep at the end
};

/*
 * struct sun8i_cipher_tfm_ctx - context for a skcipher TFM
 * @enginectx:		crypto_engine used by this TFM
 * @key:		pointer to key data
 * @keylen:		len of the key
 * @ss:			pointer to the private data of driver handling this TFM
 * @fallback_tfm:	pointer to the fallback TFM
 *
 * enginectx must be the first element
 */
struct sun8i_cipher_tfm_ctx {
	struct crypto_engine_ctx enginectx;
	u32 *key;
	u32 keylen;
	struct sun8i_ss_dev *ss;
	struct crypto_skcipher *fallback_tfm;
};

/*
 * struct sun8i_ss_prng_ctx - context for PRNG TFM
 * @seed:	The seed to use
 * @slen:	The size of the seed
 */
struct sun8i_ss_rng_tfm_ctx {
	void *seed;
	unsigned int slen;
};

/*
 * struct sun8i_ss_hash_tfm_ctx - context for an ahash TFM
 * @enginectx:		crypto_engine used by this TFM
 * @fallback_tfm:	pointer to the fallback TFM
 * @ss:			pointer to the private data of driver handling this TFM
 *
 * enginectx must be the first element
 */
struct sun8i_ss_hash_tfm_ctx {
	struct crypto_engine_ctx enginectx;
	struct crypto_ahash *fallback_tfm;
	struct sun8i_ss_dev *ss;
};

/*
 * struct sun8i_ss_hash_reqctx - context for an ahash request
 * @t_src:	list of DMA address and size for source SGs
 * @t_dst:	list of DMA address and size for destination SGs
 * @fallback_req:	pre-allocated fallback request
 * @method:	the register value for the algorithm used by this request
 * @flow:	the flow to use for this request
 */
struct sun8i_ss_hash_reqctx {
	struct sginfo t_src[MAX_SG];
	struct sginfo t_dst[MAX_SG];
	struct ahash_request fallback_req;
	u32 method;
	int flow;
};

/*
 * struct sun8i_ss_alg_template - crypto_alg template
 * @type:		the CRYPTO_ALG_TYPE for this template
 * @ss_algo_id:		the SS_ID for this template
 * @ss_blockmode:	the type of block operation SS_ID
 * @ss:			pointer to the sun8i_ss_dev structure associated with
 *			this template
 * @alg:		one of sub struct must be used
 * @stat_req:		number of request done on this template
 * @stat_fb:		number of request which has fallbacked
 * @stat_bytes:		total data size done by this template
 */
struct sun8i_ss_alg_template {
	u32 type;
	u32 ss_algo_id;
	u32 ss_blockmode;
	struct sun8i_ss_dev *ss;
	union {
		struct skcipher_alg skcipher;
		struct rng_alg rng;
		struct ahash_alg hash;
	} alg;
#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	unsigned long stat_req;
	unsigned long stat_fb;
	unsigned long stat_bytes;
#endif
};

int sun8i_ss_enqueue(struct crypto_async_request *areq, u32 type);

int sun8i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
			unsigned int keylen);
int sun8i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
			 unsigned int keylen);
int sun8i_ss_cipher_init(struct crypto_tfm *tfm);
void sun8i_ss_cipher_exit(struct crypto_tfm *tfm);
int sun8i_ss_skdecrypt(struct skcipher_request *areq);
int sun8i_ss_skencrypt(struct skcipher_request *areq);

int sun8i_ss_get_engine_number(struct sun8i_ss_dev *ss);

int sun8i_ss_run_task(struct sun8i_ss_dev *ss, struct sun8i_cipher_req_ctx *rctx, const char *name);
int sun8i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
			   unsigned int slen, u8 *dst, unsigned int dlen);
int sun8i_ss_prng_seed(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
int sun8i_ss_prng_init(struct crypto_tfm *tfm);
void sun8i_ss_prng_exit(struct crypto_tfm *tfm);

int sun8i_ss_hash_crainit(struct crypto_tfm *tfm);
void sun8i_ss_hash_craexit(struct crypto_tfm *tfm);
int sun8i_ss_hash_init(struct ahash_request *areq);
int sun8i_ss_hash_export(struct ahash_request *areq, void *out);
int sun8i_ss_hash_import(struct ahash_request *areq, const void *in);
int sun8i_ss_hash_final(struct ahash_request *areq);
int sun8i_ss_hash_update(struct ahash_request *areq);
int sun8i_ss_hash_finup(struct ahash_request *areq);
int sun8i_ss_hash_digest(struct ahash_request *areq);
int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq);
Commit	Line	Data
f08fcced CL	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	/*
	3	* sun8i-ss.h - hardware cryptographic offloader for
	4	* Allwinner A80/A83T SoC
	5	*
	6	* Copyright (C) 2016-2019 Corentin LABBE <clabbe.montjoie@gmail.com>
	7	*/
	8	#include <crypto/aes.h>
	9	#include <crypto/des.h>
	10	#include <crypto/engine.h>
ac2614d7	11	#include <crypto/rng.h>
f08fcced CL	12	#include <crypto/skcipher.h>
	13	#include <linux/atomic.h>
	14	#include <linux/debugfs.h>
	15	#include <linux/crypto.h>
d9b45418 CL	16	#include <crypto/internal/hash.h>
	17	#include <crypto/md5.h>
	18	#include <crypto/sha.h>
f08fcced	19
f1455b18 CL	20	#define SS_START 1
f1455b18 CL	21
f08fcced CL	22	#define SS_ENCRYPTION 0
	23	#define SS_DECRYPTION BIT(6)
	24
	25	#define SS_ALG_AES 0
	26	#define SS_ALG_DES (1 << 2)
	27	#define SS_ALG_3DES (2 << 2)
d9b45418	28	#define SS_ALG_MD5 (3 << 2)
ac2614d7	29	#define SS_ALG_PRNG (4 << 2)
d9b45418 CL	30	#define SS_ALG_SHA1 (6 << 2)
	31	#define SS_ALG_SHA224 (7 << 2)
	32	#define SS_ALG_SHA256 (8 << 2)
f08fcced CL	33
	34	#define SS_CTL_REG 0x00
	35	#define SS_INT_CTL_REG 0x04
	36	#define SS_INT_STA_REG 0x08
	37	#define SS_KEY_ADR_REG 0x10
	38	#define SS_IV_ADR_REG 0x18
	39	#define SS_SRC_ADR_REG 0x20
	40	#define SS_DST_ADR_REG 0x28
	41	#define SS_LEN_ADR_REG 0x30
	42
	43	#define SS_ID_NOTSUPP 0xFF
	44
	45	#define SS_ID_CIPHER_AES 0
	46	#define SS_ID_CIPHER_DES 1
	47	#define SS_ID_CIPHER_DES3 2
	48	#define SS_ID_CIPHER_MAX 3
	49
	50	#define SS_ID_OP_ECB 0
	51	#define SS_ID_OP_CBC 1
	52	#define SS_ID_OP_MAX 2
	53
	54	#define SS_AES_128BITS 0
	55	#define SS_AES_192BITS 1
	56	#define SS_AES_256BITS 2
	57
	58	#define SS_OP_ECB 0
	59	#define SS_OP_CBC (1 << 13)
	60
d9b45418 CL	61	#define SS_ID_HASH_MD5 0
	62	#define SS_ID_HASH_SHA1 1
	63	#define SS_ID_HASH_SHA224 2
	64	#define SS_ID_HASH_SHA256 3
	65	#define SS_ID_HASH_MAX 4
	66
f08fcced CL	67	#define SS_FLOW0 BIT(30)
	68	#define SS_FLOW1 BIT(31)
	69
ac2614d7 CL	70	#define SS_PRNG_CONTINUE BIT(18)
ac2614d7 CL	71
f08fcced CL	72	#define MAX_SG 8
	73
	74	#define MAXFLOW 2
	75
	76	#define SS_MAX_CLOCKS 2
	77
	78	#define SS_DIE_ID_SHIFT 20
	79	#define SS_DIE_ID_MASK 0x07
	80
ac2614d7 CL	81	#define PRNG_DATA_SIZE (160 / 8)
	82	#define PRNG_SEED_SIZE DIV_ROUND_UP(175, 8)
	83
f08fcced CL	84	/*
	85	* struct ss_clock - Describe clocks used by sun8i-ss
	86	* @name: Name of clock needed by this variant
	87	* @freq: Frequency to set for each clock
	88	* @max_freq: Maximum frequency for each clock
	89	*/
	90	struct ss_clock {
	91	const char *name;
	92	unsigned long freq;
	93	unsigned long max_freq;
	94	};
	95
	96	/*
	97	* struct ss_variant - Describe SS capability for each variant hardware
	98	* @alg_cipher: list of supported ciphers. for each SS_ID_ this will give the
	99	* coresponding SS_ALG_XXX value
d9b45418 CL	100	* @alg_hash: list of supported hashes. for each SS_ID_ this will give the
d9b45418 CL	101	* corresponding SS_ALG_XXX value
f08fcced	102	* @op_mode: list of supported block modes
3b7aaa84	103	* @ss_clks: list of clock needed by this variant
f08fcced CL	104	*/
	105	struct ss_variant {
	106	char alg_cipher[SS_ID_CIPHER_MAX];
d9b45418	107	char alg_hash[SS_ID_HASH_MAX];
f08fcced CL	108	u32 op_mode[SS_ID_OP_MAX];
	109	struct ss_clock ss_clks[SS_MAX_CLOCKS];
	110	};
	111
	112	struct sginfo {
	113	u32 addr;
	114	u32 len;
	115	};
	116
	117	/*
	118	* struct sun8i_ss_flow - Information used by each flow
	119	* @engine: ptr to the crypto_engine for this flow
	120	* @complete: completion for the current task on this flow
	121	* @status: set to 1 by interrupt if task is done
	122	* @stat_req: number of request done by this flow
	123	*/
	124	struct sun8i_ss_flow {
	125	struct crypto_engine *engine;
	126	struct completion complete;
	127	int status;
	128	#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	129	unsigned long stat_req;
	130	#endif
	131	};
	132
	133	/*
	134	* struct sun8i_ss_dev - main container for all this driver information
	135	* @base: base address of SS
	136	* @ssclks: clocks used by SS
	137	* @reset: pointer to reset controller
	138	* @dev: the platform device
	139	* @mlock: Control access to device registers
	140	* @flows: array of all flow
	141	* @flow: flow to use in next request
	142	* @variant: pointer to variant specific data
	143	* @dbgfs_dir: Debugfs dentry for statistic directory
	144	* @dbgfs_stats: Debugfs dentry for statistic counters
	145	*/
	146	struct sun8i_ss_dev {
	147	void __iomem *base;
	148	struct clk *ssclks[SS_MAX_CLOCKS];
	149	struct reset_control *reset;
	150	struct device *dev;
	151	struct mutex mlock;
	152	struct sun8i_ss_flow *flows;
	153	atomic_t flow;
	154	const struct ss_variant *variant;
	155	#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	156	struct dentry *dbgfs_dir;
	157	struct dentry *dbgfs_stats;
	158	#endif
	159	};
	160
	161	/*
	162	* struct sun8i_cipher_req_ctx - context for a skcipher request
44b59175 AB	163	* @t_src: list of mapped SGs with their size
	164	* @t_dst: list of mapped SGs with their size
	165	* @p_key: DMA address of the key
	166	* @p_iv: DMA address of the IV
	167	* @method: current algorithm for this request
	168	* @op_mode: op_mode for this request
	169	* @op_dir: direction (encrypt vs decrypt) for this request
	170	* @flow: the flow to use for this request
	171	* @ivlen: size of biv
	172	* @keylen: keylen for this request
	173	* @biv: buffer which contain the IV
	174	* @fallback_req: request struct for invoking the fallback skcipher TFM
f08fcced CL	175	*/
	176	struct sun8i_cipher_req_ctx {
	177	struct sginfo t_src[MAX_SG];
	178	struct sginfo t_dst[MAX_SG];
	179	u32 p_key;
	180	u32 p_iv;
	181	u32 method;
	182	u32 op_mode;
	183	u32 op_dir;
	184	int flow;
	185	unsigned int ivlen;
	186	unsigned int keylen;
	187	void *biv;
44b59175	188	struct skcipher_request fallback_req; // keep at the end
f08fcced CL	189	};
	190
	191	/*
	192	* struct sun8i_cipher_tfm_ctx - context for a skcipher TFM
	193	* @enginectx: crypto_engine used by this TFM
	194	* @key: pointer to key data
	195	* @keylen: len of the key
	196	* @ss: pointer to the private data of driver handling this TFM
	197	* @fallback_tfm: pointer to the fallback TFM
3bf9754b CL	198	*
3bf9754b CL	199	* enginectx must be the first element
f08fcced CL	200	*/
	201	struct sun8i_cipher_tfm_ctx {
	202	struct crypto_engine_ctx enginectx;
	203	u32 *key;
	204	u32 keylen;
	205	struct sun8i_ss_dev *ss;
44b59175	206	struct crypto_skcipher *fallback_tfm;
f08fcced CL	207	};
f08fcced CL	208
ac2614d7 CL	209	/*
	210	* struct sun8i_ss_prng_ctx - context for PRNG TFM
	211	* @seed: The seed to use
	212	* @slen: The size of the seed
	213	*/
	214	struct sun8i_ss_rng_tfm_ctx {
	215	void *seed;
	216	unsigned int slen;
	217	};
	218
d9b45418 CL	219	/*
	220	* struct sun8i_ss_hash_tfm_ctx - context for an ahash TFM
	221	* @enginectx: crypto_engine used by this TFM
	222	* @fallback_tfm: pointer to the fallback TFM
	223	* @ss: pointer to the private data of driver handling this TFM
	224	*
	225	* enginectx must be the first element
	226	*/
	227	struct sun8i_ss_hash_tfm_ctx {
	228	struct crypto_engine_ctx enginectx;
	229	struct crypto_ahash *fallback_tfm;
	230	struct sun8i_ss_dev *ss;
	231	};
	232
	233	/*
	234	* struct sun8i_ss_hash_reqctx - context for an ahash request
	235	* @t_src: list of DMA address and size for source SGs
	236	* @t_dst: list of DMA address and size for destination SGs
	237	* @fallback_req: pre-allocated fallback request
	238	* @method: the register value for the algorithm used by this request
	239	* @flow: the flow to use for this request
	240	*/
	241	struct sun8i_ss_hash_reqctx {
	242	struct sginfo t_src[MAX_SG];
	243	struct sginfo t_dst[MAX_SG];
	244	struct ahash_request fallback_req;
	245	u32 method;
	246	int flow;
	247	};
	248
f08fcced CL	249	/*
	250	* struct sun8i_ss_alg_template - crypto_alg template
	251	* @type: the CRYPTO_ALG_TYPE for this template
	252	* @ss_algo_id: the SS_ID for this template
	253	* @ss_blockmode: the type of block operation SS_ID
	254	* @ss: pointer to the sun8i_ss_dev structure associated with
	255	* this template
	256	* @alg: one of sub struct must be used
	257	* @stat_req: number of request done on this template
11c7686a	258	* @stat_fb: number of request which has fallbacked
ac2614d7	259	* @stat_bytes: total data size done by this template
f08fcced CL	260	*/
	261	struct sun8i_ss_alg_template {
	262	u32 type;
	263	u32 ss_algo_id;
	264	u32 ss_blockmode;
	265	struct sun8i_ss_dev *ss;
	266	union {
	267	struct skcipher_alg skcipher;
ac2614d7	268	struct rng_alg rng;
d9b45418	269	struct ahash_alg hash;
f08fcced CL	270	} alg;
	271	#ifdef CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG
	272	unsigned long stat_req;
	273	unsigned long stat_fb;
ac2614d7	274	unsigned long stat_bytes;
f08fcced CL	275	#endif
	276	};
	277
	278	int sun8i_ss_enqueue(struct crypto_async_request *areq, u32 type);
	279
	280	int sun8i_ss_aes_setkey(struct crypto_skcipher tfm, const u8 key,
	281	unsigned int keylen);
	282	int sun8i_ss_des3_setkey(struct crypto_skcipher tfm, const u8 key,
	283	unsigned int keylen);
	284	int sun8i_ss_cipher_init(struct crypto_tfm *tfm);
	285	void sun8i_ss_cipher_exit(struct crypto_tfm *tfm);
	286	int sun8i_ss_skdecrypt(struct skcipher_request *areq);
	287	int sun8i_ss_skencrypt(struct skcipher_request *areq);
	288
	289	int sun8i_ss_get_engine_number(struct sun8i_ss_dev *ss);
	290
	291	int sun8i_ss_run_task(struct sun8i_ss_dev ss, struct sun8i_cipher_req_ctx rctx, const char *name);
ac2614d7 CL	292	int sun8i_ss_prng_generate(struct crypto_rng tfm, const u8 src,
	293	unsigned int slen, u8 *dst, unsigned int dlen);
	294	int sun8i_ss_prng_seed(struct crypto_rng tfm, const u8 seed, unsigned int slen);
	295	int sun8i_ss_prng_init(struct crypto_tfm *tfm);
	296	void sun8i_ss_prng_exit(struct crypto_tfm *tfm);
d9b45418 CL	297
	298	int sun8i_ss_hash_crainit(struct crypto_tfm *tfm);
	299	void sun8i_ss_hash_craexit(struct crypto_tfm *tfm);
	300	int sun8i_ss_hash_init(struct ahash_request *areq);
	301	int sun8i_ss_hash_export(struct ahash_request areq, void out);
	302	int sun8i_ss_hash_import(struct ahash_request areq, const void in);
	303	int sun8i_ss_hash_final(struct ahash_request *areq);
	304	int sun8i_ss_hash_update(struct ahash_request *areq);
	305	int sun8i_ss_hash_finup(struct ahash_request *areq);
	306	int sun8i_ss_hash_digest(struct ahash_request *areq);
	307	int sun8i_ss_hash_run(struct crypto_engine engine, void breq);