1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
   3
   4#include <linux/kernel.h>
   5#include <linux/module.h>
   6#include <crypto/algapi.h>
   7#include <crypto/internal/skcipher.h>
   8#include <crypto/internal/des.h>
   9#include <crypto/xts.h>
  10#include <crypto/sm4.h>
  11#include <crypto/scatterwalk.h>
  12
  13#include "cc_driver.h"
  14#include "cc_lli_defs.h"
  15#include "cc_buffer_mgr.h"
  16#include "cc_cipher.h"
  17#include "cc_request_mgr.h"
  18
  19#define MAX_SKCIPHER_SEQ_LEN 6
  20
  21#define template_skcipher	template_u.skcipher
  22
  23struct cc_user_key_info {
  24	u8 *key;
  25	dma_addr_t key_dma_addr;
  26};
  27
  28struct cc_hw_key_info {
  29	enum cc_hw_crypto_key key1_slot;
  30	enum cc_hw_crypto_key key2_slot;
  31};
  32
  33struct cc_cpp_key_info {
  34	u8 slot;
  35	enum cc_cpp_alg alg;
  36};
  37
  38enum cc_key_type {
  39	CC_UNPROTECTED_KEY,		/* User key */
  40	CC_HW_PROTECTED_KEY,		/* HW (FDE) key */
  41	CC_POLICY_PROTECTED_KEY,	/* CPP key */
  42	CC_INVALID_PROTECTED_KEY	/* Invalid key */
  43};
  44
  45struct cc_cipher_ctx {
  46	struct cc_drvdata *drvdata;
  47	int keylen;
  48	int cipher_mode;
  49	int flow_mode;
  50	unsigned int flags;
  51	enum cc_key_type key_type;
  52	struct cc_user_key_info user;
  53	union {
  54		struct cc_hw_key_info hw;
  55		struct cc_cpp_key_info cpp;
  56	};
  57	struct crypto_shash *shash_tfm;
  58	struct crypto_skcipher *fallback_tfm;
  59	bool fallback_on;
  60};
  61
  62static void cc_cipher_complete(struct device *dev, void *cc_req, int err);
  63
  64static inline enum cc_key_type cc_key_type(struct crypto_tfm *tfm)
  65{
  66	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
  67
  68	return ctx_p->key_type;
  69}
  70
  71static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
  72{
  73	switch (ctx_p->flow_mode) {
  74	case S_DIN_to_AES:
  75		switch (size) {
  76		case CC_AES_128_BIT_KEY_SIZE:
  77		case CC_AES_192_BIT_KEY_SIZE:
  78			if (ctx_p->cipher_mode != DRV_CIPHER_XTS &&
  79			    ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER)
  80				return 0;
  81			break;
  82		case CC_AES_256_BIT_KEY_SIZE:
  83			return 0;
  84		case (CC_AES_192_BIT_KEY_SIZE * 2):
  85		case (CC_AES_256_BIT_KEY_SIZE * 2):
  86			if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
  87			    ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
  88			    ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)
  89				return 0;
  90			break;
  91		default:
  92			break;
  93		}
  94		break;
  95	case S_DIN_to_DES:
  96		if (size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE)
  97			return 0;
  98		break;
  99	case S_DIN_to_SM4:
 100		if (size == SM4_KEY_SIZE)
 101			return 0;
 
 102	default:
 103		break;
 104	}
 105	return -EINVAL;
 106}
 107
 108static int validate_data_size(struct cc_cipher_ctx *ctx_p,
 109			      unsigned int size)
 110{
 111	switch (ctx_p->flow_mode) {
 112	case S_DIN_to_AES:
 113		switch (ctx_p->cipher_mode) {
 114		case DRV_CIPHER_XTS:
 115		case DRV_CIPHER_CBC_CTS:
 116			if (size >= AES_BLOCK_SIZE)
 117				return 0;
 118			break;
 119		case DRV_CIPHER_OFB:
 120		case DRV_CIPHER_CTR:
 121				return 0;
 122		case DRV_CIPHER_ECB:
 123		case DRV_CIPHER_CBC:
 124		case DRV_CIPHER_ESSIV:
 125		case DRV_CIPHER_BITLOCKER:
 126			if (IS_ALIGNED(size, AES_BLOCK_SIZE))
 127				return 0;
 128			break;
 129		default:
 130			break;
 131		}
 132		break;
 133	case S_DIN_to_DES:
 134		if (IS_ALIGNED(size, DES_BLOCK_SIZE))
 135			return 0;
 136		break;
 137	case S_DIN_to_SM4:
 138		switch (ctx_p->cipher_mode) {
 139		case DRV_CIPHER_CTR:
 140			return 0;
 141		case DRV_CIPHER_ECB:
 142		case DRV_CIPHER_CBC:
 143			if (IS_ALIGNED(size, SM4_BLOCK_SIZE))
 144				return 0;
 
 145		default:
 146			break;
 147		}
 
 148	default:
 149		break;
 150	}
 151	return -EINVAL;
 152}
 153
 154static int cc_cipher_init(struct crypto_tfm *tfm)
 155{
 156	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 157	struct cc_crypto_alg *cc_alg =
 158			container_of(tfm->__crt_alg, struct cc_crypto_alg,
 159				     skcipher_alg.base);
 160	struct device *dev = drvdata_to_dev(cc_alg->drvdata);
 161	unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
 162	unsigned int fallback_req_size = 0;
 163
 164	dev_dbg(dev, "Initializing context @%p for %s\n", ctx_p,
 165		crypto_tfm_alg_name(tfm));
 166
 167	ctx_p->cipher_mode = cc_alg->cipher_mode;
 168	ctx_p->flow_mode = cc_alg->flow_mode;
 169	ctx_p->drvdata = cc_alg->drvdata;
 170
 171	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 172		const char *name = crypto_tfm_alg_name(tfm);
 173
 174		/* Alloc hash tfm for essiv */
 175		ctx_p->shash_tfm = crypto_alloc_shash("sha256", 0, 0);
 176		if (IS_ERR(ctx_p->shash_tfm)) {
 177			dev_err(dev, "Error allocating hash tfm for ESSIV.\n");
 178			return PTR_ERR(ctx_p->shash_tfm);
 179		}
 180		max_key_buf_size <<= 1;
 181
 182		/* Alloc fallabck tfm or essiv when key size != 256 bit */
 183		ctx_p->fallback_tfm =
 184			crypto_alloc_skcipher(name, 0, CRYPTO_ALG_NEED_FALLBACK | CRYPTO_ALG_ASYNC);
 185
 186		if (IS_ERR(ctx_p->fallback_tfm)) {
 187			/* Note we're still allowing registration with no fallback since it's
 188			 * better to have most modes supported than none at all.
 189			 */
 190			dev_warn(dev, "Error allocating fallback algo %s. Some modes may be available.\n",
 191			       name);
 192			ctx_p->fallback_tfm = NULL;
 193		} else {
 194			fallback_req_size = crypto_skcipher_reqsize(ctx_p->fallback_tfm);
 195		}
 196	}
 197
 198	crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm),
 199				    sizeof(struct cipher_req_ctx) + fallback_req_size);
 200
 201	/* Allocate key buffer, cache line aligned */
 202	ctx_p->user.key = kzalloc(max_key_buf_size, GFP_KERNEL);
 203	if (!ctx_p->user.key)
 204		goto free_fallback;
 205
 206	dev_dbg(dev, "Allocated key buffer in context. key=@%p\n",
 207		ctx_p->user.key);
 208
 209	/* Map key buffer */
 210	ctx_p->user.key_dma_addr = dma_map_single(dev, ctx_p->user.key,
 211						  max_key_buf_size,
 212						  DMA_TO_DEVICE);
 213	if (dma_mapping_error(dev, ctx_p->user.key_dma_addr)) {
 214		dev_err(dev, "Mapping Key %u B at va=%pK for DMA failed\n",
 215			max_key_buf_size, ctx_p->user.key);
 216		goto free_key;
 217	}
 218	dev_dbg(dev, "Mapped key %u B at va=%pK to dma=%pad\n",
 219		max_key_buf_size, ctx_p->user.key, &ctx_p->user.key_dma_addr);
 220
 221	return 0;
 222
 223free_key:
 224	kfree(ctx_p->user.key);
 225free_fallback:
 226	crypto_free_skcipher(ctx_p->fallback_tfm);
 227	crypto_free_shash(ctx_p->shash_tfm);
 228
 229	return -ENOMEM;
 230}
 231
 232static void cc_cipher_exit(struct crypto_tfm *tfm)
 233{
 234	struct crypto_alg *alg = tfm->__crt_alg;
 235	struct cc_crypto_alg *cc_alg =
 236			container_of(alg, struct cc_crypto_alg,
 237				     skcipher_alg.base);
 238	unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
 239	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 240	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 241
 242	dev_dbg(dev, "Clearing context @%p for %s\n",
 243		crypto_tfm_ctx(tfm), crypto_tfm_alg_name(tfm));
 244
 245	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 246		/* Free hash tfm for essiv */
 247		crypto_free_shash(ctx_p->shash_tfm);
 248		ctx_p->shash_tfm = NULL;
 249		crypto_free_skcipher(ctx_p->fallback_tfm);
 250		ctx_p->fallback_tfm = NULL;
 251	}
 252
 253	/* Unmap key buffer */
 254	dma_unmap_single(dev, ctx_p->user.key_dma_addr, max_key_buf_size,
 255			 DMA_TO_DEVICE);
 256	dev_dbg(dev, "Unmapped key buffer key_dma_addr=%pad\n",
 257		&ctx_p->user.key_dma_addr);
 258
 259	/* Free key buffer in context */
 260	kfree_sensitive(ctx_p->user.key);
 261	dev_dbg(dev, "Free key buffer in context. key=@%p\n", ctx_p->user.key);
 
 262}
 263
 264struct tdes_keys {
 265	u8	key1[DES_KEY_SIZE];
 266	u8	key2[DES_KEY_SIZE];
 267	u8	key3[DES_KEY_SIZE];
 268};
 269
 270static enum cc_hw_crypto_key cc_slot_to_hw_key(u8 slot_num)
 271{
 272	switch (slot_num) {
 273	case 0:
 274		return KFDE0_KEY;
 275	case 1:
 276		return KFDE1_KEY;
 277	case 2:
 278		return KFDE2_KEY;
 279	case 3:
 280		return KFDE3_KEY;
 281	}
 282	return END_OF_KEYS;
 283}
 284
 285static u8 cc_slot_to_cpp_key(u8 slot_num)
 286{
 287	return (slot_num - CC_FIRST_CPP_KEY_SLOT);
 288}
 289
 290static inline enum cc_key_type cc_slot_to_key_type(u8 slot_num)
 291{
 292	if (slot_num >= CC_FIRST_HW_KEY_SLOT && slot_num <= CC_LAST_HW_KEY_SLOT)
 293		return CC_HW_PROTECTED_KEY;
 294	else if (slot_num >=  CC_FIRST_CPP_KEY_SLOT &&
 295		 slot_num <=  CC_LAST_CPP_KEY_SLOT)
 296		return CC_POLICY_PROTECTED_KEY;
 297	else
 298		return CC_INVALID_PROTECTED_KEY;
 299}
 300
 301static int cc_cipher_sethkey(struct crypto_skcipher *sktfm, const u8 *key,
 302			     unsigned int keylen)
 303{
 304	struct crypto_tfm *tfm = crypto_skcipher_tfm(sktfm);
 305	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 306	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 307	struct cc_hkey_info hki;
 308
 309	dev_dbg(dev, "Setting HW key in context @%p for %s. keylen=%u\n",
 310		ctx_p, crypto_tfm_alg_name(tfm), keylen);
 311	dump_byte_array("key", key, keylen);
 312
 313	/* STAT_PHASE_0: Init and sanity checks */
 314
 315	/* This check the size of the protected key token */
 316	if (keylen != sizeof(hki)) {
 317		dev_err(dev, "Unsupported protected key size %d.\n", keylen);
 318		return -EINVAL;
 319	}
 320
 321	memcpy(&hki, key, keylen);
 322
 323	/* The real key len for crypto op is the size of the HW key
 324	 * referenced by the HW key slot, not the hardware key token
 325	 */
 326	keylen = hki.keylen;
 327
 328	if (validate_keys_sizes(ctx_p, keylen)) {
 329		dev_dbg(dev, "Unsupported key size %d.\n", keylen);
 330		return -EINVAL;
 331	}
 332
 333	ctx_p->keylen = keylen;
 334	ctx_p->fallback_on = false;
 335
 336	switch (cc_slot_to_key_type(hki.hw_key1)) {
 337	case CC_HW_PROTECTED_KEY:
 338		if (ctx_p->flow_mode == S_DIN_to_SM4) {
 339			dev_err(dev, "Only AES HW protected keys are supported\n");
 340			return -EINVAL;
 341		}
 342
 343		ctx_p->hw.key1_slot = cc_slot_to_hw_key(hki.hw_key1);
 344		if (ctx_p->hw.key1_slot == END_OF_KEYS) {
 345			dev_err(dev, "Unsupported hw key1 number (%d)\n",
 346				hki.hw_key1);
 347			return -EINVAL;
 348		}
 349
 350		if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
 351		    ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
 352		    ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) {
 353			if (hki.hw_key1 == hki.hw_key2) {
 354				dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
 355					hki.hw_key1, hki.hw_key2);
 356				return -EINVAL;
 357			}
 358
 359			ctx_p->hw.key2_slot = cc_slot_to_hw_key(hki.hw_key2);
 360			if (ctx_p->hw.key2_slot == END_OF_KEYS) {
 361				dev_err(dev, "Unsupported hw key2 number (%d)\n",
 362					hki.hw_key2);
 363				return -EINVAL;
 364			}
 365		}
 366
 367		ctx_p->key_type = CC_HW_PROTECTED_KEY;
 368		dev_dbg(dev, "HW protected key  %d/%d set\n.",
 369			ctx_p->hw.key1_slot, ctx_p->hw.key2_slot);
 370		break;
 371
 372	case CC_POLICY_PROTECTED_KEY:
 373		if (ctx_p->drvdata->hw_rev < CC_HW_REV_713) {
 374			dev_err(dev, "CPP keys not supported in this hardware revision.\n");
 375			return -EINVAL;
 376		}
 377
 378		if (ctx_p->cipher_mode != DRV_CIPHER_CBC &&
 379		    ctx_p->cipher_mode != DRV_CIPHER_CTR) {
 380			dev_err(dev, "CPP keys only supported in CBC or CTR modes.\n");
 381			return -EINVAL;
 382		}
 383
 384		ctx_p->cpp.slot = cc_slot_to_cpp_key(hki.hw_key1);
 385		if (ctx_p->flow_mode == S_DIN_to_AES)
 386			ctx_p->cpp.alg = CC_CPP_AES;
 387		else /* Must be SM4 since due to sethkey registration */
 388			ctx_p->cpp.alg = CC_CPP_SM4;
 389		ctx_p->key_type = CC_POLICY_PROTECTED_KEY;
 390		dev_dbg(dev, "policy protected key alg: %d slot: %d.\n",
 391			ctx_p->cpp.alg, ctx_p->cpp.slot);
 392		break;
 393
 394	default:
 395		dev_err(dev, "Unsupported protected key (%d)\n", hki.hw_key1);
 396		return -EINVAL;
 397	}
 398
 399	return 0;
 400}
 401
 402static int cc_cipher_setkey(struct crypto_skcipher *sktfm, const u8 *key,
 403			    unsigned int keylen)
 404{
 405	struct crypto_tfm *tfm = crypto_skcipher_tfm(sktfm);
 406	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 407	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 408	struct cc_crypto_alg *cc_alg =
 409			container_of(tfm->__crt_alg, struct cc_crypto_alg,
 410				     skcipher_alg.base);
 411	unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
 412
 413	dev_dbg(dev, "Setting key in context @%p for %s. keylen=%u\n",
 414		ctx_p, crypto_tfm_alg_name(tfm), keylen);
 415	dump_byte_array("key", key, keylen);
 416
 417	/* STAT_PHASE_0: Init and sanity checks */
 418
 419	if (validate_keys_sizes(ctx_p, keylen)) {
 420		dev_dbg(dev, "Invalid key size %d.\n", keylen);
 421		return -EINVAL;
 422	}
 423
 424	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 425
 426		/* We only support 256 bit ESSIV-CBC-AES keys */
 427		if (keylen != AES_KEYSIZE_256)  {
 428			unsigned int flags = crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_MASK;
 429
 430			if (likely(ctx_p->fallback_tfm)) {
 431				ctx_p->fallback_on = true;
 432				crypto_skcipher_clear_flags(ctx_p->fallback_tfm,
 433							    CRYPTO_TFM_REQ_MASK);
 434				crypto_skcipher_clear_flags(ctx_p->fallback_tfm, flags);
 435				return crypto_skcipher_setkey(ctx_p->fallback_tfm, key, keylen);
 436			}
 437
 438			dev_dbg(dev, "Unsupported key size %d and no fallback.\n", keylen);
 439			return -EINVAL;
 440		}
 441
 442		/* Internal ESSIV key buffer is double sized */
 443		max_key_buf_size <<= 1;
 444	}
 445
 446	ctx_p->fallback_on = false;
 447	ctx_p->key_type = CC_UNPROTECTED_KEY;
 448
 449	/*
 450	 * Verify DES weak keys
 451	 * Note that we're dropping the expanded key since the
 452	 * HW does the expansion on its own.
 453	 */
 454	if (ctx_p->flow_mode == S_DIN_to_DES) {
 455		if ((keylen == DES3_EDE_KEY_SIZE &&
 456		     verify_skcipher_des3_key(sktfm, key)) ||
 457		    verify_skcipher_des_key(sktfm, key)) {
 458			dev_dbg(dev, "weak DES key");
 459			return -EINVAL;
 460		}
 461	}
 462
 463	if (ctx_p->cipher_mode == DRV_CIPHER_XTS &&
 464	    xts_check_key(tfm, key, keylen)) {
 465		dev_dbg(dev, "weak XTS key");
 466		return -EINVAL;
 467	}
 468
 469	/* STAT_PHASE_1: Copy key to ctx */
 470	dma_sync_single_for_cpu(dev, ctx_p->user.key_dma_addr,
 471				max_key_buf_size, DMA_TO_DEVICE);
 472
 473	memcpy(ctx_p->user.key, key, keylen);
 474
 475	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 476		/* sha256 for key2 - use sw implementation */
 477		int err;
 478
 479		err = crypto_shash_tfm_digest(ctx_p->shash_tfm,
 480					      ctx_p->user.key, keylen,
 481					      ctx_p->user.key + keylen);
 482		if (err) {
 483			dev_err(dev, "Failed to hash ESSIV key.\n");
 484			return err;
 485		}
 486
 487		keylen <<= 1;
 488	}
 489	dma_sync_single_for_device(dev, ctx_p->user.key_dma_addr,
 490				   max_key_buf_size, DMA_TO_DEVICE);
 491	ctx_p->keylen = keylen;
 492
 493	dev_dbg(dev, "return safely");
 494	return 0;
 495}
 496
 497static int cc_out_setup_mode(struct cc_cipher_ctx *ctx_p)
 498{
 499	switch (ctx_p->flow_mode) {
 500	case S_DIN_to_AES:
 501		return S_AES_to_DOUT;
 502	case S_DIN_to_DES:
 503		return S_DES_to_DOUT;
 504	case S_DIN_to_SM4:
 505		return S_SM4_to_DOUT;
 506	default:
 507		return ctx_p->flow_mode;
 508	}
 509}
 510
 511static void cc_setup_readiv_desc(struct crypto_tfm *tfm,
 512				 struct cipher_req_ctx *req_ctx,
 513				 unsigned int ivsize, struct cc_hw_desc desc[],
 514				 unsigned int *seq_size)
 515{
 516	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 517	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 518	int cipher_mode = ctx_p->cipher_mode;
 519	int flow_mode = cc_out_setup_mode(ctx_p);
 520	int direction = req_ctx->gen_ctx.op_type;
 521	dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
 522
 523	if (ctx_p->key_type == CC_POLICY_PROTECTED_KEY)
 524		return;
 525
 526	switch (cipher_mode) {
 527	case DRV_CIPHER_ECB:
 528		break;
 529	case DRV_CIPHER_CBC:
 530	case DRV_CIPHER_CBC_CTS:
 531	case DRV_CIPHER_CTR:
 532	case DRV_CIPHER_OFB:
 533		/* Read next IV */
 534		hw_desc_init(&desc[*seq_size]);
 535		set_dout_dlli(&desc[*seq_size], iv_dma_addr, ivsize, NS_BIT, 1);
 536		set_cipher_config0(&desc[*seq_size], direction);
 537		set_flow_mode(&desc[*seq_size], flow_mode);
 538		set_cipher_mode(&desc[*seq_size], cipher_mode);
 539		if (cipher_mode == DRV_CIPHER_CTR ||
 540		    cipher_mode == DRV_CIPHER_OFB) {
 541			set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
 542		} else {
 543			set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE0);
 544		}
 545		set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
 546		(*seq_size)++;
 547		break;
 548	case DRV_CIPHER_XTS:
 549	case DRV_CIPHER_ESSIV:
 550	case DRV_CIPHER_BITLOCKER:
 551		/*  IV */
 552		hw_desc_init(&desc[*seq_size]);
 553		set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
 554		set_cipher_mode(&desc[*seq_size], cipher_mode);
 555		set_cipher_config0(&desc[*seq_size], direction);
 556		set_flow_mode(&desc[*seq_size], flow_mode);
 557		set_dout_dlli(&desc[*seq_size], iv_dma_addr, CC_AES_BLOCK_SIZE,
 558			     NS_BIT, 1);
 559		set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
 560		(*seq_size)++;
 561		break;
 562	default:
 563		dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
 564	}
 565}
 566
 567
 568static void cc_setup_state_desc(struct crypto_tfm *tfm,
 569				 struct cipher_req_ctx *req_ctx,
 570				 unsigned int ivsize, unsigned int nbytes,
 571				 struct cc_hw_desc desc[],
 572				 unsigned int *seq_size)
 573{
 574	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 575	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 576	int cipher_mode = ctx_p->cipher_mode;
 577	int flow_mode = ctx_p->flow_mode;
 578	int direction = req_ctx->gen_ctx.op_type;
 579	dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
 580
 581	switch (cipher_mode) {
 582	case DRV_CIPHER_ECB:
 583		break;
 584	case DRV_CIPHER_CBC:
 585	case DRV_CIPHER_CBC_CTS:
 586	case DRV_CIPHER_CTR:
 587	case DRV_CIPHER_OFB:
 588		/* Load IV */
 589		hw_desc_init(&desc[*seq_size]);
 590		set_din_type(&desc[*seq_size], DMA_DLLI, iv_dma_addr, ivsize,
 591			     NS_BIT);
 592		set_cipher_config0(&desc[*seq_size], direction);
 593		set_flow_mode(&desc[*seq_size], flow_mode);
 594		set_cipher_mode(&desc[*seq_size], cipher_mode);
 595		if (cipher_mode == DRV_CIPHER_CTR ||
 596		    cipher_mode == DRV_CIPHER_OFB) {
 597			set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1);
 598		} else {
 599			set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE0);
 600		}
 601		(*seq_size)++;
 602		break;
 603	case DRV_CIPHER_XTS:
 604	case DRV_CIPHER_ESSIV:
 605	case DRV_CIPHER_BITLOCKER:
 606		break;
 607	default:
 608		dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
 609	}
 610}
 611
 612
 613static void cc_setup_xex_state_desc(struct crypto_tfm *tfm,
 614				 struct cipher_req_ctx *req_ctx,
 615				 unsigned int ivsize, unsigned int nbytes,
 616				 struct cc_hw_desc desc[],
 617				 unsigned int *seq_size)
 618{
 619	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 620	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 621	int cipher_mode = ctx_p->cipher_mode;
 622	int flow_mode = ctx_p->flow_mode;
 623	int direction = req_ctx->gen_ctx.op_type;
 624	dma_addr_t key_dma_addr = ctx_p->user.key_dma_addr;
 625	unsigned int key_len = (ctx_p->keylen / 2);
 626	dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
 627	unsigned int du_size = nbytes;
 628	unsigned int key_offset = key_len;
 629
 630	struct cc_crypto_alg *cc_alg =
 631		container_of(tfm->__crt_alg, struct cc_crypto_alg,
 632			     skcipher_alg.base);
 633
 634	if (cc_alg->data_unit)
 635		du_size = cc_alg->data_unit;
 636
 637	switch (cipher_mode) {
 638	case DRV_CIPHER_ECB:
 639		break;
 640	case DRV_CIPHER_CBC:
 641	case DRV_CIPHER_CBC_CTS:
 642	case DRV_CIPHER_CTR:
 643	case DRV_CIPHER_OFB:
 644		break;
 645	case DRV_CIPHER_XTS:
 646	case DRV_CIPHER_ESSIV:
 647	case DRV_CIPHER_BITLOCKER:
 648
 649		if (cipher_mode == DRV_CIPHER_ESSIV)
 650			key_len = SHA256_DIGEST_SIZE;
 651
 652		/* load XEX key */
 653		hw_desc_init(&desc[*seq_size]);
 654		set_cipher_mode(&desc[*seq_size], cipher_mode);
 655		set_cipher_config0(&desc[*seq_size], direction);
 656		if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
 657			set_hw_crypto_key(&desc[*seq_size],
 658					  ctx_p->hw.key2_slot);
 659		} else {
 660			set_din_type(&desc[*seq_size], DMA_DLLI,
 661				     (key_dma_addr + key_offset),
 662				     key_len, NS_BIT);
 663		}
 664		set_xex_data_unit_size(&desc[*seq_size], du_size);
 665		set_flow_mode(&desc[*seq_size], S_DIN_to_AES2);
 666		set_key_size_aes(&desc[*seq_size], key_len);
 667		set_setup_mode(&desc[*seq_size], SETUP_LOAD_XEX_KEY);
 668		(*seq_size)++;
 669
 670		/* Load IV */
 671		hw_desc_init(&desc[*seq_size]);
 672		set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1);
 673		set_cipher_mode(&desc[*seq_size], cipher_mode);
 674		set_cipher_config0(&desc[*seq_size], direction);
 675		set_key_size_aes(&desc[*seq_size], key_len);
 676		set_flow_mode(&desc[*seq_size], flow_mode);
 677		set_din_type(&desc[*seq_size], DMA_DLLI, iv_dma_addr,
 678			     CC_AES_BLOCK_SIZE, NS_BIT);
 679		(*seq_size)++;
 680		break;
 681	default:
 682		dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
 683	}
 684}
 685
 686static int cc_out_flow_mode(struct cc_cipher_ctx *ctx_p)
 687{
 688	switch (ctx_p->flow_mode) {
 689	case S_DIN_to_AES:
 690		return DIN_AES_DOUT;
 691	case S_DIN_to_DES:
 692		return DIN_DES_DOUT;
 693	case S_DIN_to_SM4:
 694		return DIN_SM4_DOUT;
 695	default:
 696		return ctx_p->flow_mode;
 697	}
 698}
 699
 700static void cc_setup_key_desc(struct crypto_tfm *tfm,
 701			      struct cipher_req_ctx *req_ctx,
 702			      unsigned int nbytes, struct cc_hw_desc desc[],
 703			      unsigned int *seq_size)
 704{
 705	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 706	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 707	int cipher_mode = ctx_p->cipher_mode;
 708	int flow_mode = ctx_p->flow_mode;
 709	int direction = req_ctx->gen_ctx.op_type;
 710	dma_addr_t key_dma_addr = ctx_p->user.key_dma_addr;
 711	unsigned int key_len = ctx_p->keylen;
 712	unsigned int din_size;
 713
 714	switch (cipher_mode) {
 715	case DRV_CIPHER_CBC:
 716	case DRV_CIPHER_CBC_CTS:
 717	case DRV_CIPHER_CTR:
 718	case DRV_CIPHER_OFB:
 719	case DRV_CIPHER_ECB:
 720		/* Load key */
 721		hw_desc_init(&desc[*seq_size]);
 722		set_cipher_mode(&desc[*seq_size], cipher_mode);
 723		set_cipher_config0(&desc[*seq_size], direction);
 724
 725		if (cc_key_type(tfm) == CC_POLICY_PROTECTED_KEY) {
 726			/* We use the AES key size coding for all CPP algs */
 727			set_key_size_aes(&desc[*seq_size], key_len);
 728			set_cpp_crypto_key(&desc[*seq_size], ctx_p->cpp.slot);
 729			flow_mode = cc_out_flow_mode(ctx_p);
 730		} else {
 731			if (flow_mode == S_DIN_to_AES) {
 732				if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
 733					set_hw_crypto_key(&desc[*seq_size],
 734							  ctx_p->hw.key1_slot);
 735				} else {
 736					/* CC_POLICY_UNPROTECTED_KEY
 737					 * Invalid keys are filtered out in
 738					 * sethkey()
 739					 */
 740					din_size = (key_len == 24) ?
 741						AES_MAX_KEY_SIZE : key_len;
 742
 743					set_din_type(&desc[*seq_size], DMA_DLLI,
 744						     key_dma_addr, din_size,
 745						     NS_BIT);
 746				}
 747				set_key_size_aes(&desc[*seq_size], key_len);
 748			} else {
 749				/*des*/
 750				set_din_type(&desc[*seq_size], DMA_DLLI,
 751					     key_dma_addr, key_len, NS_BIT);
 752				set_key_size_des(&desc[*seq_size], key_len);
 753			}
 754			set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0);
 755		}
 756		set_flow_mode(&desc[*seq_size], flow_mode);
 757		(*seq_size)++;
 758		break;
 759	case DRV_CIPHER_XTS:
 760	case DRV_CIPHER_ESSIV:
 761	case DRV_CIPHER_BITLOCKER:
 762		/* Load AES key */
 763		hw_desc_init(&desc[*seq_size]);
 764		set_cipher_mode(&desc[*seq_size], cipher_mode);
 765		set_cipher_config0(&desc[*seq_size], direction);
 766		if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
 767			set_hw_crypto_key(&desc[*seq_size],
 768					  ctx_p->hw.key1_slot);
 769		} else {
 770			set_din_type(&desc[*seq_size], DMA_DLLI, key_dma_addr,
 771				     (key_len / 2), NS_BIT);
 772		}
 773		set_key_size_aes(&desc[*seq_size], (key_len / 2));
 774		set_flow_mode(&desc[*seq_size], flow_mode);
 775		set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0);
 776		(*seq_size)++;
 777		break;
 778	default:
 779		dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
 780	}
 781}
 782
 783static void cc_setup_mlli_desc(struct crypto_tfm *tfm,
 784			       struct cipher_req_ctx *req_ctx,
 785			       struct scatterlist *dst, struct scatterlist *src,
 786			       unsigned int nbytes, void *areq,
 787			       struct cc_hw_desc desc[], unsigned int *seq_size)
 788{
 789	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 790	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 791
 792	if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) {
 793		/* bypass */
 794		dev_dbg(dev, " bypass params addr %pad length 0x%X addr 0x%08X\n",
 795			&req_ctx->mlli_params.mlli_dma_addr,
 796			req_ctx->mlli_params.mlli_len,
 797			ctx_p->drvdata->mlli_sram_addr);
 798		hw_desc_init(&desc[*seq_size]);
 799		set_din_type(&desc[*seq_size], DMA_DLLI,
 800			     req_ctx->mlli_params.mlli_dma_addr,
 801			     req_ctx->mlli_params.mlli_len, NS_BIT);
 802		set_dout_sram(&desc[*seq_size],
 803			      ctx_p->drvdata->mlli_sram_addr,
 804			      req_ctx->mlli_params.mlli_len);
 805		set_flow_mode(&desc[*seq_size], BYPASS);
 806		(*seq_size)++;
 807	}
 808}
 809
 810static void cc_setup_flow_desc(struct crypto_tfm *tfm,
 811			       struct cipher_req_ctx *req_ctx,
 812			       struct scatterlist *dst, struct scatterlist *src,
 813			       unsigned int nbytes, struct cc_hw_desc desc[],
 814			       unsigned int *seq_size)
 815{
 816	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 817	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 818	unsigned int flow_mode = cc_out_flow_mode(ctx_p);
 819	bool last_desc = (ctx_p->key_type == CC_POLICY_PROTECTED_KEY ||
 820			  ctx_p->cipher_mode == DRV_CIPHER_ECB);
 821
 822	/* Process */
 823	if (req_ctx->dma_buf_type == CC_DMA_BUF_DLLI) {
 824		dev_dbg(dev, " data params addr %pad length 0x%X\n",
 825			&sg_dma_address(src), nbytes);
 826		dev_dbg(dev, " data params addr %pad length 0x%X\n",
 827			&sg_dma_address(dst), nbytes);
 828		hw_desc_init(&desc[*seq_size]);
 829		set_din_type(&desc[*seq_size], DMA_DLLI, sg_dma_address(src),
 830			     nbytes, NS_BIT);
 831		set_dout_dlli(&desc[*seq_size], sg_dma_address(dst),
 832			      nbytes, NS_BIT, (!last_desc ? 0 : 1));
 833		if (last_desc)
 834			set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
 835
 836		set_flow_mode(&desc[*seq_size], flow_mode);
 837		(*seq_size)++;
 838	} else {
 839		hw_desc_init(&desc[*seq_size]);
 840		set_din_type(&desc[*seq_size], DMA_MLLI,
 841			     ctx_p->drvdata->mlli_sram_addr,
 842			     req_ctx->in_mlli_nents, NS_BIT);
 843		if (req_ctx->out_nents == 0) {
 844			dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
 845				ctx_p->drvdata->mlli_sram_addr,
 846				ctx_p->drvdata->mlli_sram_addr);
 847			set_dout_mlli(&desc[*seq_size],
 848				      ctx_p->drvdata->mlli_sram_addr,
 849				      req_ctx->in_mlli_nents, NS_BIT,
 850				      (!last_desc ? 0 : 1));
 851		} else {
 852			dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
 853				ctx_p->drvdata->mlli_sram_addr,
 854				ctx_p->drvdata->mlli_sram_addr +
 855				(u32)LLI_ENTRY_BYTE_SIZE * req_ctx->in_nents);
 856			set_dout_mlli(&desc[*seq_size],
 857				      (ctx_p->drvdata->mlli_sram_addr +
 858				       (LLI_ENTRY_BYTE_SIZE *
 859					req_ctx->in_mlli_nents)),
 860				      req_ctx->out_mlli_nents, NS_BIT,
 861				      (!last_desc ? 0 : 1));
 862		}
 863		if (last_desc)
 864			set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
 865
 866		set_flow_mode(&desc[*seq_size], flow_mode);
 867		(*seq_size)++;
 868	}
 869}
 870
 871static void cc_cipher_complete(struct device *dev, void *cc_req, int err)
 872{
 873	struct skcipher_request *req = (struct skcipher_request *)cc_req;
 874	struct scatterlist *dst = req->dst;
 875	struct scatterlist *src = req->src;
 876	struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
 877	struct crypto_skcipher *sk_tfm = crypto_skcipher_reqtfm(req);
 878	unsigned int ivsize = crypto_skcipher_ivsize(sk_tfm);
 879
 880	if (err != -EINPROGRESS) {
 881		/* Not a BACKLOG notification */
 882		cc_unmap_cipher_request(dev, req_ctx, ivsize, src, dst);
 883		memcpy(req->iv, req_ctx->iv, ivsize);
 884		kfree_sensitive(req_ctx->iv);
 885	}
 886
 887	skcipher_request_complete(req, err);
 888}
 889
 890static int cc_cipher_process(struct skcipher_request *req,
 891			     enum drv_crypto_direction direction)
 892{
 893	struct crypto_skcipher *sk_tfm = crypto_skcipher_reqtfm(req);
 894	struct crypto_tfm *tfm = crypto_skcipher_tfm(sk_tfm);
 895	struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
 896	unsigned int ivsize = crypto_skcipher_ivsize(sk_tfm);
 897	struct scatterlist *dst = req->dst;
 898	struct scatterlist *src = req->src;
 899	unsigned int nbytes = req->cryptlen;
 900	void *iv = req->iv;
 901	struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
 902	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 903	struct cc_hw_desc desc[MAX_SKCIPHER_SEQ_LEN];
 904	struct cc_crypto_req cc_req = {};
 905	int rc;
 906	unsigned int seq_len = 0;
 907	gfp_t flags = cc_gfp_flags(&req->base);
 908
 909	dev_dbg(dev, "%s req=%p iv=%p nbytes=%d\n",
 910		((direction == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
 911		"Encrypt" : "Decrypt"), req, iv, nbytes);
 912
 913	/* STAT_PHASE_0: Init and sanity checks */
 914
 915	if (validate_data_size(ctx_p, nbytes)) {
 916		dev_dbg(dev, "Unsupported data size %d.\n", nbytes);
 917		rc = -EINVAL;
 918		goto exit_process;
 919	}
 920	if (nbytes == 0) {
 921		/* No data to process is valid */
 922		rc = 0;
 923		goto exit_process;
 924	}
 925
 926	if (ctx_p->fallback_on) {
 927		struct skcipher_request *subreq = skcipher_request_ctx(req);
 928
 929		*subreq = *req;
 930		skcipher_request_set_tfm(subreq, ctx_p->fallback_tfm);
 931		if (direction == DRV_CRYPTO_DIRECTION_ENCRYPT)
 932			return crypto_skcipher_encrypt(subreq);
 933		else
 934			return crypto_skcipher_decrypt(subreq);
 935	}
 936
 937	/* The IV we are handed may be allocted from the stack so
 938	 * we must copy it to a DMAable buffer before use.
 939	 */
 940	req_ctx->iv = kmemdup(iv, ivsize, flags);
 941	if (!req_ctx->iv) {
 942		rc = -ENOMEM;
 943		goto exit_process;
 944	}
 945
 946	/* Setup request structure */
 947	cc_req.user_cb = cc_cipher_complete;
 948	cc_req.user_arg = req;
 949
 950	/* Setup CPP operation details */
 951	if (ctx_p->key_type == CC_POLICY_PROTECTED_KEY) {
 952		cc_req.cpp.is_cpp = true;
 953		cc_req.cpp.alg = ctx_p->cpp.alg;
 954		cc_req.cpp.slot = ctx_p->cpp.slot;
 955	}
 956
 957	/* Setup request context */
 958	req_ctx->gen_ctx.op_type = direction;
 959
 960	/* STAT_PHASE_1: Map buffers */
 961
 962	rc = cc_map_cipher_request(ctx_p->drvdata, req_ctx, ivsize, nbytes,
 963				      req_ctx->iv, src, dst, flags);
 964	if (rc) {
 965		dev_err(dev, "map_request() failed\n");
 966		goto exit_process;
 967	}
 968
 969	/* STAT_PHASE_2: Create sequence */
 970
 971	/* Setup state (IV)  */
 972	cc_setup_state_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len);
 973	/* Setup MLLI line, if needed */
 974	cc_setup_mlli_desc(tfm, req_ctx, dst, src, nbytes, req, desc, &seq_len);
 975	/* Setup key */
 976	cc_setup_key_desc(tfm, req_ctx, nbytes, desc, &seq_len);
 977	/* Setup state (IV and XEX key)  */
 978	cc_setup_xex_state_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len);
 979	/* Data processing */
 980	cc_setup_flow_desc(tfm, req_ctx, dst, src, nbytes, desc, &seq_len);
 981	/* Read next IV */
 982	cc_setup_readiv_desc(tfm, req_ctx, ivsize, desc, &seq_len);
 983
 984	/* STAT_PHASE_3: Lock HW and push sequence */
 985
 986	rc = cc_send_request(ctx_p->drvdata, &cc_req, desc, seq_len,
 987			     &req->base);
 988	if (rc != -EINPROGRESS && rc != -EBUSY) {
 989		/* Failed to send the request or request completed
 990		 * synchronously
 991		 */
 992		cc_unmap_cipher_request(dev, req_ctx, ivsize, src, dst);
 993	}
 994
 995exit_process:
 996	if (rc != -EINPROGRESS && rc != -EBUSY) {
 997		kfree_sensitive(req_ctx->iv);
 998	}
 999
1000	return rc;
1001}
1002
1003static int cc_cipher_encrypt(struct skcipher_request *req)
1004{
1005	struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
1006
1007	memset(req_ctx, 0, sizeof(*req_ctx));
1008
1009	return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT);
1010}
1011
1012static int cc_cipher_decrypt(struct skcipher_request *req)
1013{
1014	struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
1015
1016	memset(req_ctx, 0, sizeof(*req_ctx));
1017
1018	return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_DECRYPT);
1019}
1020
1021/* Block cipher alg */
1022static const struct cc_alg_template skcipher_algs[] = {
1023	{
1024		.name = "xts(paes)",
1025		.driver_name = "xts-paes-ccree",
1026		.blocksize = 1,
1027		.template_skcipher = {
1028			.setkey = cc_cipher_sethkey,
1029			.encrypt = cc_cipher_encrypt,
1030			.decrypt = cc_cipher_decrypt,
1031			.min_keysize = CC_HW_KEY_SIZE,
1032			.max_keysize = CC_HW_KEY_SIZE,
1033			.ivsize = AES_BLOCK_SIZE,
1034			},
1035		.cipher_mode = DRV_CIPHER_XTS,
1036		.flow_mode = S_DIN_to_AES,
1037		.min_hw_rev = CC_HW_REV_630,
1038		.std_body = CC_STD_NIST,
1039		.sec_func = true,
1040	},
1041	{
1042		.name = "xts512(paes)",
1043		.driver_name = "xts-paes-du512-ccree",
1044		.blocksize = 1,
1045		.template_skcipher = {
1046			.setkey = cc_cipher_sethkey,
1047			.encrypt = cc_cipher_encrypt,
1048			.decrypt = cc_cipher_decrypt,
1049			.min_keysize = CC_HW_KEY_SIZE,
1050			.max_keysize = CC_HW_KEY_SIZE,
1051			.ivsize = AES_BLOCK_SIZE,
1052			},
1053		.cipher_mode = DRV_CIPHER_XTS,
1054		.flow_mode = S_DIN_to_AES,
1055		.data_unit = 512,
1056		.min_hw_rev = CC_HW_REV_712,
1057		.std_body = CC_STD_NIST,
1058		.sec_func = true,
1059	},
1060	{
1061		.name = "xts4096(paes)",
1062		.driver_name = "xts-paes-du4096-ccree",
1063		.blocksize = 1,
1064		.template_skcipher = {
1065			.setkey = cc_cipher_sethkey,
1066			.encrypt = cc_cipher_encrypt,
1067			.decrypt = cc_cipher_decrypt,
1068			.min_keysize = CC_HW_KEY_SIZE,
1069			.max_keysize = CC_HW_KEY_SIZE,
1070			.ivsize = AES_BLOCK_SIZE,
1071			},
1072		.cipher_mode = DRV_CIPHER_XTS,
1073		.flow_mode = S_DIN_to_AES,
1074		.data_unit = 4096,
1075		.min_hw_rev = CC_HW_REV_712,
1076		.std_body = CC_STD_NIST,
1077		.sec_func = true,
1078	},
1079	{
1080		.name = "essiv(cbc(paes),sha256)",
1081		.driver_name = "essiv-paes-ccree",
1082		.blocksize = AES_BLOCK_SIZE,
1083		.template_skcipher = {
1084			.setkey = cc_cipher_sethkey,
1085			.encrypt = cc_cipher_encrypt,
1086			.decrypt = cc_cipher_decrypt,
1087			.min_keysize = CC_HW_KEY_SIZE,
1088			.max_keysize = CC_HW_KEY_SIZE,
1089			.ivsize = AES_BLOCK_SIZE,
1090			},
1091		.cipher_mode = DRV_CIPHER_ESSIV,
1092		.flow_mode = S_DIN_to_AES,
1093		.min_hw_rev = CC_HW_REV_712,
1094		.std_body = CC_STD_NIST,
1095		.sec_func = true,
1096	},
1097	{
1098		.name = "essiv512(cbc(paes),sha256)",
1099		.driver_name = "essiv-paes-du512-ccree",
1100		.blocksize = AES_BLOCK_SIZE,
1101		.template_skcipher = {
1102			.setkey = cc_cipher_sethkey,
1103			.encrypt = cc_cipher_encrypt,
1104			.decrypt = cc_cipher_decrypt,
1105			.min_keysize = CC_HW_KEY_SIZE,
1106			.max_keysize = CC_HW_KEY_SIZE,
1107			.ivsize = AES_BLOCK_SIZE,
1108			},
1109		.cipher_mode = DRV_CIPHER_ESSIV,
1110		.flow_mode = S_DIN_to_AES,
1111		.data_unit = 512,
1112		.min_hw_rev = CC_HW_REV_712,
1113		.std_body = CC_STD_NIST,
1114		.sec_func = true,
1115	},
1116	{
1117		.name = "essiv4096(cbc(paes),sha256)",
1118		.driver_name = "essiv-paes-du4096-ccree",
1119		.blocksize = AES_BLOCK_SIZE,
1120		.template_skcipher = {
1121			.setkey = cc_cipher_sethkey,
1122			.encrypt = cc_cipher_encrypt,
1123			.decrypt = cc_cipher_decrypt,
1124			.min_keysize = CC_HW_KEY_SIZE,
1125			.max_keysize = CC_HW_KEY_SIZE,
1126			.ivsize = AES_BLOCK_SIZE,
1127			},
1128		.cipher_mode = DRV_CIPHER_ESSIV,
1129		.flow_mode = S_DIN_to_AES,
1130		.data_unit = 4096,
1131		.min_hw_rev = CC_HW_REV_712,
1132		.std_body = CC_STD_NIST,
1133		.sec_func = true,
1134	},
1135	{
1136		.name = "bitlocker(paes)",
1137		.driver_name = "bitlocker-paes-ccree",
1138		.blocksize = AES_BLOCK_SIZE,
1139		.template_skcipher = {
1140			.setkey = cc_cipher_sethkey,
1141			.encrypt = cc_cipher_encrypt,
1142			.decrypt = cc_cipher_decrypt,
1143			.min_keysize = CC_HW_KEY_SIZE,
1144			.max_keysize = CC_HW_KEY_SIZE,
1145			.ivsize = AES_BLOCK_SIZE,
1146			},
1147		.cipher_mode = DRV_CIPHER_BITLOCKER,
1148		.flow_mode = S_DIN_to_AES,
1149		.min_hw_rev = CC_HW_REV_712,
1150		.std_body = CC_STD_NIST,
1151		.sec_func = true,
1152	},
1153	{
1154		.name = "bitlocker512(paes)",
1155		.driver_name = "bitlocker-paes-du512-ccree",
1156		.blocksize = AES_BLOCK_SIZE,
1157		.template_skcipher = {
1158			.setkey = cc_cipher_sethkey,
1159			.encrypt = cc_cipher_encrypt,
1160			.decrypt = cc_cipher_decrypt,
1161			.min_keysize = CC_HW_KEY_SIZE,
1162			.max_keysize = CC_HW_KEY_SIZE,
1163			.ivsize = AES_BLOCK_SIZE,
1164			},
1165		.cipher_mode = DRV_CIPHER_BITLOCKER,
1166		.flow_mode = S_DIN_to_AES,
1167		.data_unit = 512,
1168		.min_hw_rev = CC_HW_REV_712,
1169		.std_body = CC_STD_NIST,
1170		.sec_func = true,
1171	},
1172	{
1173		.name = "bitlocker4096(paes)",
1174		.driver_name = "bitlocker-paes-du4096-ccree",
1175		.blocksize = AES_BLOCK_SIZE,
1176		.template_skcipher = {
1177			.setkey = cc_cipher_sethkey,
1178			.encrypt = cc_cipher_encrypt,
1179			.decrypt = cc_cipher_decrypt,
1180			.min_keysize = CC_HW_KEY_SIZE,
1181			.max_keysize =  CC_HW_KEY_SIZE,
1182			.ivsize = AES_BLOCK_SIZE,
1183			},
1184		.cipher_mode = DRV_CIPHER_BITLOCKER,
1185		.flow_mode = S_DIN_to_AES,
1186		.data_unit = 4096,
1187		.min_hw_rev = CC_HW_REV_712,
1188		.std_body = CC_STD_NIST,
1189		.sec_func = true,
1190	},
1191	{
1192		.name = "ecb(paes)",
1193		.driver_name = "ecb-paes-ccree",
1194		.blocksize = AES_BLOCK_SIZE,
1195		.template_skcipher = {
1196			.setkey = cc_cipher_sethkey,
1197			.encrypt = cc_cipher_encrypt,
1198			.decrypt = cc_cipher_decrypt,
1199			.min_keysize = CC_HW_KEY_SIZE,
1200			.max_keysize = CC_HW_KEY_SIZE,
1201			.ivsize = 0,
1202			},
1203		.cipher_mode = DRV_CIPHER_ECB,
1204		.flow_mode = S_DIN_to_AES,
1205		.min_hw_rev = CC_HW_REV_712,
1206		.std_body = CC_STD_NIST,
1207		.sec_func = true,
1208	},
1209	{
1210		.name = "cbc(paes)",
1211		.driver_name = "cbc-paes-ccree",
1212		.blocksize = AES_BLOCK_SIZE,
1213		.template_skcipher = {
1214			.setkey = cc_cipher_sethkey,
1215			.encrypt = cc_cipher_encrypt,
1216			.decrypt = cc_cipher_decrypt,
1217			.min_keysize = CC_HW_KEY_SIZE,
1218			.max_keysize = CC_HW_KEY_SIZE,
1219			.ivsize = AES_BLOCK_SIZE,
1220		},
1221		.cipher_mode = DRV_CIPHER_CBC,
1222		.flow_mode = S_DIN_to_AES,
1223		.min_hw_rev = CC_HW_REV_712,
1224		.std_body = CC_STD_NIST,
1225		.sec_func = true,
1226	},
1227	{
1228		.name = "ofb(paes)",
1229		.driver_name = "ofb-paes-ccree",
1230		.blocksize = AES_BLOCK_SIZE,
1231		.template_skcipher = {
1232			.setkey = cc_cipher_sethkey,
1233			.encrypt = cc_cipher_encrypt,
1234			.decrypt = cc_cipher_decrypt,
1235			.min_keysize = CC_HW_KEY_SIZE,
1236			.max_keysize = CC_HW_KEY_SIZE,
1237			.ivsize = AES_BLOCK_SIZE,
1238			},
1239		.cipher_mode = DRV_CIPHER_OFB,
1240		.flow_mode = S_DIN_to_AES,
1241		.min_hw_rev = CC_HW_REV_712,
1242		.std_body = CC_STD_NIST,
1243		.sec_func = true,
1244	},
1245	{
1246		.name = "cts(cbc(paes))",
1247		.driver_name = "cts-cbc-paes-ccree",
1248		.blocksize = AES_BLOCK_SIZE,
1249		.template_skcipher = {
1250			.setkey = cc_cipher_sethkey,
1251			.encrypt = cc_cipher_encrypt,
1252			.decrypt = cc_cipher_decrypt,
1253			.min_keysize = CC_HW_KEY_SIZE,
1254			.max_keysize = CC_HW_KEY_SIZE,
1255			.ivsize = AES_BLOCK_SIZE,
1256			},
1257		.cipher_mode = DRV_CIPHER_CBC_CTS,
1258		.flow_mode = S_DIN_to_AES,
1259		.min_hw_rev = CC_HW_REV_712,
1260		.std_body = CC_STD_NIST,
1261		.sec_func = true,
1262	},
1263	{
1264		.name = "ctr(paes)",
1265		.driver_name = "ctr-paes-ccree",
1266		.blocksize = 1,
1267		.template_skcipher = {
1268			.setkey = cc_cipher_sethkey,
1269			.encrypt = cc_cipher_encrypt,
1270			.decrypt = cc_cipher_decrypt,
1271			.min_keysize = CC_HW_KEY_SIZE,
1272			.max_keysize = CC_HW_KEY_SIZE,
1273			.ivsize = AES_BLOCK_SIZE,
1274			},
1275		.cipher_mode = DRV_CIPHER_CTR,
1276		.flow_mode = S_DIN_to_AES,
1277		.min_hw_rev = CC_HW_REV_712,
1278		.std_body = CC_STD_NIST,
1279		.sec_func = true,
1280	},
1281	{
1282		/* See https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg40576.html
1283		 * for the reason why this differs from the generic
1284		 * implementation.
1285		 */
1286		.name = "xts(aes)",
1287		.driver_name = "xts-aes-ccree",
1288		.blocksize = 1,
1289		.template_skcipher = {
1290			.setkey = cc_cipher_setkey,
1291			.encrypt = cc_cipher_encrypt,
1292			.decrypt = cc_cipher_decrypt,
1293			.min_keysize = AES_MIN_KEY_SIZE * 2,
1294			.max_keysize = AES_MAX_KEY_SIZE * 2,
1295			.ivsize = AES_BLOCK_SIZE,
1296			},
1297		.cipher_mode = DRV_CIPHER_XTS,
1298		.flow_mode = S_DIN_to_AES,
1299		.min_hw_rev = CC_HW_REV_630,
1300		.std_body = CC_STD_NIST,
1301	},
1302	{
1303		.name = "xts512(aes)",
1304		.driver_name = "xts-aes-du512-ccree",
1305		.blocksize = 1,
1306		.template_skcipher = {
1307			.setkey = cc_cipher_setkey,
1308			.encrypt = cc_cipher_encrypt,
1309			.decrypt = cc_cipher_decrypt,
1310			.min_keysize = AES_MIN_KEY_SIZE * 2,
1311			.max_keysize = AES_MAX_KEY_SIZE * 2,
1312			.ivsize = AES_BLOCK_SIZE,
1313			},
1314		.cipher_mode = DRV_CIPHER_XTS,
1315		.flow_mode = S_DIN_to_AES,
1316		.data_unit = 512,
1317		.min_hw_rev = CC_HW_REV_712,
1318		.std_body = CC_STD_NIST,
1319	},
1320	{
1321		.name = "xts4096(aes)",
1322		.driver_name = "xts-aes-du4096-ccree",
1323		.blocksize = 1,
1324		.template_skcipher = {
1325			.setkey = cc_cipher_setkey,
1326			.encrypt = cc_cipher_encrypt,
1327			.decrypt = cc_cipher_decrypt,
1328			.min_keysize = AES_MIN_KEY_SIZE * 2,
1329			.max_keysize = AES_MAX_KEY_SIZE * 2,
1330			.ivsize = AES_BLOCK_SIZE,
1331			},
1332		.cipher_mode = DRV_CIPHER_XTS,
1333		.flow_mode = S_DIN_to_AES,
1334		.data_unit = 4096,
1335		.min_hw_rev = CC_HW_REV_712,
1336		.std_body = CC_STD_NIST,
1337	},
1338	{
1339		.name = "essiv(cbc(aes),sha256)",
1340		.driver_name = "essiv-aes-ccree",
1341		.blocksize = AES_BLOCK_SIZE,
1342		.template_skcipher = {
1343			.setkey = cc_cipher_setkey,
1344			.encrypt = cc_cipher_encrypt,
1345			.decrypt = cc_cipher_decrypt,
1346			.min_keysize = AES_MIN_KEY_SIZE,
1347			.max_keysize = AES_MAX_KEY_SIZE,
1348			.ivsize = AES_BLOCK_SIZE,
1349			},
1350		.cipher_mode = DRV_CIPHER_ESSIV,
1351		.flow_mode = S_DIN_to_AES,
1352		.min_hw_rev = CC_HW_REV_712,
1353		.std_body = CC_STD_NIST,
1354	},
1355	{
1356		.name = "essiv512(cbc(aes),sha256)",
1357		.driver_name = "essiv-aes-du512-ccree",
1358		.blocksize = AES_BLOCK_SIZE,
1359		.template_skcipher = {
1360			.setkey = cc_cipher_setkey,
1361			.encrypt = cc_cipher_encrypt,
1362			.decrypt = cc_cipher_decrypt,
1363			.min_keysize = AES_MIN_KEY_SIZE,
1364			.max_keysize = AES_MAX_KEY_SIZE,
1365			.ivsize = AES_BLOCK_SIZE,
1366			},
1367		.cipher_mode = DRV_CIPHER_ESSIV,
1368		.flow_mode = S_DIN_to_AES,
1369		.data_unit = 512,
1370		.min_hw_rev = CC_HW_REV_712,
1371		.std_body = CC_STD_NIST,
1372	},
1373	{
1374		.name = "essiv4096(cbc(aes),sha256)",
1375		.driver_name = "essiv-aes-du4096-ccree",
1376		.blocksize = AES_BLOCK_SIZE,
1377		.template_skcipher = {
1378			.setkey = cc_cipher_setkey,
1379			.encrypt = cc_cipher_encrypt,
1380			.decrypt = cc_cipher_decrypt,
1381			.min_keysize = AES_MIN_KEY_SIZE,
1382			.max_keysize = AES_MAX_KEY_SIZE,
1383			.ivsize = AES_BLOCK_SIZE,
1384			},
1385		.cipher_mode = DRV_CIPHER_ESSIV,
1386		.flow_mode = S_DIN_to_AES,
1387		.data_unit = 4096,
1388		.min_hw_rev = CC_HW_REV_712,
1389		.std_body = CC_STD_NIST,
1390	},
1391	{
1392		.name = "bitlocker(aes)",
1393		.driver_name = "bitlocker-aes-ccree",
1394		.blocksize = AES_BLOCK_SIZE,
1395		.template_skcipher = {
1396			.setkey = cc_cipher_setkey,
1397			.encrypt = cc_cipher_encrypt,
1398			.decrypt = cc_cipher_decrypt,
1399			.min_keysize = AES_MIN_KEY_SIZE * 2,
1400			.max_keysize = AES_MAX_KEY_SIZE * 2,
1401			.ivsize = AES_BLOCK_SIZE,
1402			},
1403		.cipher_mode = DRV_CIPHER_BITLOCKER,
1404		.flow_mode = S_DIN_to_AES,
1405		.min_hw_rev = CC_HW_REV_712,
1406		.std_body = CC_STD_NIST,
1407	},
1408	{
1409		.name = "bitlocker512(aes)",
1410		.driver_name = "bitlocker-aes-du512-ccree",
1411		.blocksize = AES_BLOCK_SIZE,
1412		.template_skcipher = {
1413			.setkey = cc_cipher_setkey,
1414			.encrypt = cc_cipher_encrypt,
1415			.decrypt = cc_cipher_decrypt,
1416			.min_keysize = AES_MIN_KEY_SIZE * 2,
1417			.max_keysize = AES_MAX_KEY_SIZE * 2,
1418			.ivsize = AES_BLOCK_SIZE,
1419			},
1420		.cipher_mode = DRV_CIPHER_BITLOCKER,
1421		.flow_mode = S_DIN_to_AES,
1422		.data_unit = 512,
1423		.min_hw_rev = CC_HW_REV_712,
1424		.std_body = CC_STD_NIST,
1425	},
1426	{
1427		.name = "bitlocker4096(aes)",
1428		.driver_name = "bitlocker-aes-du4096-ccree",
1429		.blocksize = AES_BLOCK_SIZE,
1430		.template_skcipher = {
1431			.setkey = cc_cipher_setkey,
1432			.encrypt = cc_cipher_encrypt,
1433			.decrypt = cc_cipher_decrypt,
1434			.min_keysize = AES_MIN_KEY_SIZE * 2,
1435			.max_keysize = AES_MAX_KEY_SIZE * 2,
1436			.ivsize = AES_BLOCK_SIZE,
1437			},
1438		.cipher_mode = DRV_CIPHER_BITLOCKER,
1439		.flow_mode = S_DIN_to_AES,
1440		.data_unit = 4096,
1441		.min_hw_rev = CC_HW_REV_712,
1442		.std_body = CC_STD_NIST,
1443	},
1444	{
1445		.name = "ecb(aes)",
1446		.driver_name = "ecb-aes-ccree",
1447		.blocksize = AES_BLOCK_SIZE,
1448		.template_skcipher = {
1449			.setkey = cc_cipher_setkey,
1450			.encrypt = cc_cipher_encrypt,
1451			.decrypt = cc_cipher_decrypt,
1452			.min_keysize = AES_MIN_KEY_SIZE,
1453			.max_keysize = AES_MAX_KEY_SIZE,
1454			.ivsize = 0,
1455			},
1456		.cipher_mode = DRV_CIPHER_ECB,
1457		.flow_mode = S_DIN_to_AES,
1458		.min_hw_rev = CC_HW_REV_630,
1459		.std_body = CC_STD_NIST,
1460	},
1461	{
1462		.name = "cbc(aes)",
1463		.driver_name = "cbc-aes-ccree",
1464		.blocksize = AES_BLOCK_SIZE,
1465		.template_skcipher = {
1466			.setkey = cc_cipher_setkey,
1467			.encrypt = cc_cipher_encrypt,
1468			.decrypt = cc_cipher_decrypt,
1469			.min_keysize = AES_MIN_KEY_SIZE,
1470			.max_keysize = AES_MAX_KEY_SIZE,
1471			.ivsize = AES_BLOCK_SIZE,
1472		},
1473		.cipher_mode = DRV_CIPHER_CBC,
1474		.flow_mode = S_DIN_to_AES,
1475		.min_hw_rev = CC_HW_REV_630,
1476		.std_body = CC_STD_NIST,
1477	},
1478	{
1479		.name = "ofb(aes)",
1480		.driver_name = "ofb-aes-ccree",
1481		.blocksize = 1,
1482		.template_skcipher = {
1483			.setkey = cc_cipher_setkey,
1484			.encrypt = cc_cipher_encrypt,
1485			.decrypt = cc_cipher_decrypt,
1486			.min_keysize = AES_MIN_KEY_SIZE,
1487			.max_keysize = AES_MAX_KEY_SIZE,
1488			.ivsize = AES_BLOCK_SIZE,
1489			},
1490		.cipher_mode = DRV_CIPHER_OFB,
1491		.flow_mode = S_DIN_to_AES,
1492		.min_hw_rev = CC_HW_REV_630,
1493		.std_body = CC_STD_NIST,
1494	},
1495	{
1496		.name = "cts(cbc(aes))",
1497		.driver_name = "cts-cbc-aes-ccree",
1498		.blocksize = AES_BLOCK_SIZE,
1499		.template_skcipher = {
1500			.setkey = cc_cipher_setkey,
1501			.encrypt = cc_cipher_encrypt,
1502			.decrypt = cc_cipher_decrypt,
1503			.min_keysize = AES_MIN_KEY_SIZE,
1504			.max_keysize = AES_MAX_KEY_SIZE,
1505			.ivsize = AES_BLOCK_SIZE,
1506			},
1507		.cipher_mode = DRV_CIPHER_CBC_CTS,
1508		.flow_mode = S_DIN_to_AES,
1509		.min_hw_rev = CC_HW_REV_630,
1510		.std_body = CC_STD_NIST,
1511	},
1512	{
1513		.name = "ctr(aes)",
1514		.driver_name = "ctr-aes-ccree",
1515		.blocksize = 1,
1516		.template_skcipher = {
1517			.setkey = cc_cipher_setkey,
1518			.encrypt = cc_cipher_encrypt,
1519			.decrypt = cc_cipher_decrypt,
1520			.min_keysize = AES_MIN_KEY_SIZE,
1521			.max_keysize = AES_MAX_KEY_SIZE,
1522			.ivsize = AES_BLOCK_SIZE,
1523			},
1524		.cipher_mode = DRV_CIPHER_CTR,
1525		.flow_mode = S_DIN_to_AES,
1526		.min_hw_rev = CC_HW_REV_630,
1527		.std_body = CC_STD_NIST,
1528	},
1529	{
1530		.name = "cbc(des3_ede)",
1531		.driver_name = "cbc-3des-ccree",
1532		.blocksize = DES3_EDE_BLOCK_SIZE,
1533		.template_skcipher = {
1534			.setkey = cc_cipher_setkey,
1535			.encrypt = cc_cipher_encrypt,
1536			.decrypt = cc_cipher_decrypt,
1537			.min_keysize = DES3_EDE_KEY_SIZE,
1538			.max_keysize = DES3_EDE_KEY_SIZE,
1539			.ivsize = DES3_EDE_BLOCK_SIZE,
1540			},
1541		.cipher_mode = DRV_CIPHER_CBC,
1542		.flow_mode = S_DIN_to_DES,
1543		.min_hw_rev = CC_HW_REV_630,
1544		.std_body = CC_STD_NIST,
1545	},
1546	{
1547		.name = "ecb(des3_ede)",
1548		.driver_name = "ecb-3des-ccree",
1549		.blocksize = DES3_EDE_BLOCK_SIZE,
1550		.template_skcipher = {
1551			.setkey = cc_cipher_setkey,
1552			.encrypt = cc_cipher_encrypt,
1553			.decrypt = cc_cipher_decrypt,
1554			.min_keysize = DES3_EDE_KEY_SIZE,
1555			.max_keysize = DES3_EDE_KEY_SIZE,
1556			.ivsize = 0,
1557			},
1558		.cipher_mode = DRV_CIPHER_ECB,
1559		.flow_mode = S_DIN_to_DES,
1560		.min_hw_rev = CC_HW_REV_630,
1561		.std_body = CC_STD_NIST,
1562	},
1563	{
1564		.name = "cbc(des)",
1565		.driver_name = "cbc-des-ccree",
1566		.blocksize = DES_BLOCK_SIZE,
1567		.template_skcipher = {
1568			.setkey = cc_cipher_setkey,
1569			.encrypt = cc_cipher_encrypt,
1570			.decrypt = cc_cipher_decrypt,
1571			.min_keysize = DES_KEY_SIZE,
1572			.max_keysize = DES_KEY_SIZE,
1573			.ivsize = DES_BLOCK_SIZE,
1574			},
1575		.cipher_mode = DRV_CIPHER_CBC,
1576		.flow_mode = S_DIN_to_DES,
1577		.min_hw_rev = CC_HW_REV_630,
1578		.std_body = CC_STD_NIST,
1579	},
1580	{
1581		.name = "ecb(des)",
1582		.driver_name = "ecb-des-ccree",
1583		.blocksize = DES_BLOCK_SIZE,
1584		.template_skcipher = {
1585			.setkey = cc_cipher_setkey,
1586			.encrypt = cc_cipher_encrypt,
1587			.decrypt = cc_cipher_decrypt,
1588			.min_keysize = DES_KEY_SIZE,
1589			.max_keysize = DES_KEY_SIZE,
1590			.ivsize = 0,
1591			},
1592		.cipher_mode = DRV_CIPHER_ECB,
1593		.flow_mode = S_DIN_to_DES,
1594		.min_hw_rev = CC_HW_REV_630,
1595		.std_body = CC_STD_NIST,
1596	},
1597	{
1598		.name = "cbc(sm4)",
1599		.driver_name = "cbc-sm4-ccree",
1600		.blocksize = SM4_BLOCK_SIZE,
1601		.template_skcipher = {
1602			.setkey = cc_cipher_setkey,
1603			.encrypt = cc_cipher_encrypt,
1604			.decrypt = cc_cipher_decrypt,
1605			.min_keysize = SM4_KEY_SIZE,
1606			.max_keysize = SM4_KEY_SIZE,
1607			.ivsize = SM4_BLOCK_SIZE,
1608			},
1609		.cipher_mode = DRV_CIPHER_CBC,
1610		.flow_mode = S_DIN_to_SM4,
1611		.min_hw_rev = CC_HW_REV_713,
1612		.std_body = CC_STD_OSCCA,
1613	},
1614	{
1615		.name = "ecb(sm4)",
1616		.driver_name = "ecb-sm4-ccree",
1617		.blocksize = SM4_BLOCK_SIZE,
1618		.template_skcipher = {
1619			.setkey = cc_cipher_setkey,
1620			.encrypt = cc_cipher_encrypt,
1621			.decrypt = cc_cipher_decrypt,
1622			.min_keysize = SM4_KEY_SIZE,
1623			.max_keysize = SM4_KEY_SIZE,
1624			.ivsize = 0,
1625			},
1626		.cipher_mode = DRV_CIPHER_ECB,
1627		.flow_mode = S_DIN_to_SM4,
1628		.min_hw_rev = CC_HW_REV_713,
1629		.std_body = CC_STD_OSCCA,
1630	},
1631	{
1632		.name = "ctr(sm4)",
1633		.driver_name = "ctr-sm4-ccree",
1634		.blocksize = 1,
1635		.template_skcipher = {
1636			.setkey = cc_cipher_setkey,
1637			.encrypt = cc_cipher_encrypt,
1638			.decrypt = cc_cipher_decrypt,
1639			.min_keysize = SM4_KEY_SIZE,
1640			.max_keysize = SM4_KEY_SIZE,
1641			.ivsize = SM4_BLOCK_SIZE,
1642			},
1643		.cipher_mode = DRV_CIPHER_CTR,
1644		.flow_mode = S_DIN_to_SM4,
1645		.min_hw_rev = CC_HW_REV_713,
1646		.std_body = CC_STD_OSCCA,
1647	},
1648	{
1649		.name = "cbc(psm4)",
1650		.driver_name = "cbc-psm4-ccree",
1651		.blocksize = SM4_BLOCK_SIZE,
1652		.template_skcipher = {
1653			.setkey = cc_cipher_sethkey,
1654			.encrypt = cc_cipher_encrypt,
1655			.decrypt = cc_cipher_decrypt,
1656			.min_keysize = CC_HW_KEY_SIZE,
1657			.max_keysize = CC_HW_KEY_SIZE,
1658			.ivsize = SM4_BLOCK_SIZE,
1659			},
1660		.cipher_mode = DRV_CIPHER_CBC,
1661		.flow_mode = S_DIN_to_SM4,
1662		.min_hw_rev = CC_HW_REV_713,
1663		.std_body = CC_STD_OSCCA,
1664		.sec_func = true,
1665	},
1666	{
1667		.name = "ctr(psm4)",
1668		.driver_name = "ctr-psm4-ccree",
1669		.blocksize = SM4_BLOCK_SIZE,
1670		.template_skcipher = {
1671			.setkey = cc_cipher_sethkey,
1672			.encrypt = cc_cipher_encrypt,
1673			.decrypt = cc_cipher_decrypt,
1674			.min_keysize = CC_HW_KEY_SIZE,
1675			.max_keysize = CC_HW_KEY_SIZE,
1676			.ivsize = SM4_BLOCK_SIZE,
1677			},
1678		.cipher_mode = DRV_CIPHER_CTR,
1679		.flow_mode = S_DIN_to_SM4,
1680		.min_hw_rev = CC_HW_REV_713,
1681		.std_body = CC_STD_OSCCA,
1682		.sec_func = true,
1683	},
1684};
1685
1686static struct cc_crypto_alg *cc_create_alg(const struct cc_alg_template *tmpl,
1687					   struct device *dev)
1688{
1689	struct cc_crypto_alg *t_alg;
1690	struct skcipher_alg *alg;
1691
1692	t_alg = devm_kzalloc(dev, sizeof(*t_alg), GFP_KERNEL);
1693	if (!t_alg)
1694		return ERR_PTR(-ENOMEM);
1695
1696	alg = &t_alg->skcipher_alg;
1697
1698	memcpy(alg, &tmpl->template_skcipher, sizeof(*alg));
1699
1700	snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
1701	snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
1702		 tmpl->driver_name);
 
 
 
 
1703	alg->base.cra_module = THIS_MODULE;
1704	alg->base.cra_priority = CC_CRA_PRIO;
1705	alg->base.cra_blocksize = tmpl->blocksize;
1706	alg->base.cra_alignmask = 0;
1707	alg->base.cra_ctxsize = sizeof(struct cc_cipher_ctx);
1708
1709	alg->base.cra_init = cc_cipher_init;
1710	alg->base.cra_exit = cc_cipher_exit;
1711	alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY;
1712
1713	t_alg->cipher_mode = tmpl->cipher_mode;
1714	t_alg->flow_mode = tmpl->flow_mode;
1715	t_alg->data_unit = tmpl->data_unit;
1716
1717	return t_alg;
1718}
1719
1720int cc_cipher_free(struct cc_drvdata *drvdata)
1721{
1722	struct cc_crypto_alg *t_alg, *n;
1723
1724	/* Remove registered algs */
1725	list_for_each_entry_safe(t_alg, n, &drvdata->alg_list, entry) {
1726		crypto_unregister_skcipher(&t_alg->skcipher_alg);
1727		list_del(&t_alg->entry);
1728	}
1729	return 0;
1730}
1731
1732int cc_cipher_alloc(struct cc_drvdata *drvdata)
1733{
1734	struct cc_crypto_alg *t_alg;
1735	struct device *dev = drvdata_to_dev(drvdata);
1736	int rc = -ENOMEM;
1737	int alg;
1738
1739	INIT_LIST_HEAD(&drvdata->alg_list);
1740
1741	/* Linux crypto */
1742	dev_dbg(dev, "Number of algorithms = %zu\n",
1743		ARRAY_SIZE(skcipher_algs));
1744	for (alg = 0; alg < ARRAY_SIZE(skcipher_algs); alg++) {
1745		if ((skcipher_algs[alg].min_hw_rev > drvdata->hw_rev) ||
1746		    !(drvdata->std_bodies & skcipher_algs[alg].std_body) ||
1747		    (drvdata->sec_disabled && skcipher_algs[alg].sec_func))
1748			continue;
1749
1750		dev_dbg(dev, "creating %s\n", skcipher_algs[alg].driver_name);
1751		t_alg = cc_create_alg(&skcipher_algs[alg], dev);
1752		if (IS_ERR(t_alg)) {
1753			rc = PTR_ERR(t_alg);
1754			dev_err(dev, "%s alg allocation failed\n",
1755				skcipher_algs[alg].driver_name);
1756			goto fail0;
1757		}
1758		t_alg->drvdata = drvdata;
1759
1760		dev_dbg(dev, "registering %s\n",
1761			skcipher_algs[alg].driver_name);
1762		rc = crypto_register_skcipher(&t_alg->skcipher_alg);
1763		dev_dbg(dev, "%s alg registration rc = %x\n",
1764			t_alg->skcipher_alg.base.cra_driver_name, rc);
1765		if (rc) {
1766			dev_err(dev, "%s alg registration failed\n",
1767				t_alg->skcipher_alg.base.cra_driver_name);
1768			goto fail0;
1769		}
1770
1771		list_add_tail(&t_alg->entry, &drvdata->alg_list);
1772		dev_dbg(dev, "Registered %s\n",
1773			t_alg->skcipher_alg.base.cra_driver_name);
1774	}
1775	return 0;
1776
1777fail0:
1778	cc_cipher_free(drvdata);
1779	return rc;
1780}