diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
commit | 01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch) | |
tree | b406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/crypto/sahara.c | |
parent | Adding upstream version 6.7.12. (diff) | |
download | linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip |
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/crypto/sahara.c')
-rw-r--r-- | drivers/crypto/sahara.c | 589 |
1 files changed, 258 insertions, 331 deletions
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c index fabe4f381f..3423b5cde1 100644 --- a/drivers/crypto/sahara.c +++ b/drivers/crypto/sahara.c @@ -15,6 +15,7 @@ #include <crypto/internal/hash.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> +#include <crypto/engine.h> #include <crypto/sha1.h> #include <crypto/sha2.h> @@ -24,105 +25,101 @@ #include <linux/io.h> #include <linux/irq.h> #include <linux/kernel.h> -#include <linux/kthread.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/spinlock.h> -#define SHA_BUFFER_LEN PAGE_SIZE -#define SAHARA_MAX_SHA_BLOCK_SIZE SHA256_BLOCK_SIZE - -#define SAHARA_NAME "sahara" -#define SAHARA_VERSION_3 3 -#define SAHARA_VERSION_4 4 -#define SAHARA_TIMEOUT_MS 1000 -#define SAHARA_MAX_HW_DESC 2 -#define SAHARA_MAX_HW_LINK 20 - -#define FLAGS_MODE_MASK 0x000f -#define FLAGS_ENCRYPT BIT(0) -#define FLAGS_CBC BIT(1) - -#define SAHARA_HDR_BASE 0x00800000 -#define SAHARA_HDR_SKHA_ALG_AES 0 -#define SAHARA_HDR_SKHA_OP_ENC (1 << 2) -#define SAHARA_HDR_SKHA_MODE_ECB (0 << 3) -#define SAHARA_HDR_SKHA_MODE_CBC (1 << 3) -#define SAHARA_HDR_FORM_DATA (5 << 16) -#define SAHARA_HDR_FORM_KEY (8 << 16) -#define SAHARA_HDR_LLO (1 << 24) -#define SAHARA_HDR_CHA_SKHA (1 << 28) -#define SAHARA_HDR_CHA_MDHA (2 << 28) -#define SAHARA_HDR_PARITY_BIT (1 << 31) - -#define SAHARA_HDR_MDHA_SET_MODE_MD_KEY 0x20880000 -#define SAHARA_HDR_MDHA_SET_MODE_HASH 0x208D0000 -#define SAHARA_HDR_MDHA_HASH 0xA0850000 -#define SAHARA_HDR_MDHA_STORE_DIGEST 0x20820000 -#define SAHARA_HDR_MDHA_ALG_SHA1 0 -#define SAHARA_HDR_MDHA_ALG_MD5 1 -#define SAHARA_HDR_MDHA_ALG_SHA256 2 -#define SAHARA_HDR_MDHA_ALG_SHA224 3 -#define SAHARA_HDR_MDHA_PDATA (1 << 2) -#define SAHARA_HDR_MDHA_HMAC (1 << 3) -#define SAHARA_HDR_MDHA_INIT (1 << 5) -#define SAHARA_HDR_MDHA_IPAD (1 << 6) -#define SAHARA_HDR_MDHA_OPAD (1 << 7) -#define SAHARA_HDR_MDHA_SWAP (1 << 8) -#define SAHARA_HDR_MDHA_MAC_FULL (1 << 9) -#define SAHARA_HDR_MDHA_SSL (1 << 10) - -/* SAHARA can only process one request at a time */ -#define SAHARA_QUEUE_LENGTH 1 - -#define SAHARA_REG_VERSION 0x00 -#define SAHARA_REG_DAR 0x04 -#define SAHARA_REG_CONTROL 0x08 -#define SAHARA_CONTROL_SET_THROTTLE(x) (((x) & 0xff) << 24) -#define SAHARA_CONTROL_SET_MAXBURST(x) (((x) & 0xff) << 16) -#define SAHARA_CONTROL_RNG_AUTORSD (1 << 7) -#define SAHARA_CONTROL_ENABLE_INT (1 << 4) -#define SAHARA_REG_CMD 0x0C -#define SAHARA_CMD_RESET (1 << 0) -#define SAHARA_CMD_CLEAR_INT (1 << 8) -#define SAHARA_CMD_CLEAR_ERR (1 << 9) -#define SAHARA_CMD_SINGLE_STEP (1 << 10) -#define SAHARA_CMD_MODE_BATCH (1 << 16) -#define SAHARA_CMD_MODE_DEBUG (1 << 18) -#define SAHARA_REG_STATUS 0x10 -#define SAHARA_STATUS_GET_STATE(x) ((x) & 0x7) -#define SAHARA_STATE_IDLE 0 -#define SAHARA_STATE_BUSY 1 -#define SAHARA_STATE_ERR 2 -#define SAHARA_STATE_FAULT 3 -#define SAHARA_STATE_COMPLETE 4 -#define SAHARA_STATE_COMP_FLAG (1 << 2) -#define SAHARA_STATUS_DAR_FULL (1 << 3) -#define SAHARA_STATUS_ERROR (1 << 4) -#define SAHARA_STATUS_SECURE (1 << 5) -#define SAHARA_STATUS_FAIL (1 << 6) -#define SAHARA_STATUS_INIT (1 << 7) -#define SAHARA_STATUS_RNG_RESEED (1 << 8) -#define SAHARA_STATUS_ACTIVE_RNG (1 << 9) -#define SAHARA_STATUS_ACTIVE_MDHA (1 << 10) -#define SAHARA_STATUS_ACTIVE_SKHA (1 << 11) -#define SAHARA_STATUS_MODE_BATCH (1 << 16) -#define SAHARA_STATUS_MODE_DEDICATED (1 << 17) -#define SAHARA_STATUS_MODE_DEBUG (1 << 18) -#define SAHARA_STATUS_GET_ISTATE(x) (((x) >> 24) & 0xff) -#define SAHARA_REG_ERRSTATUS 0x14 -#define SAHARA_ERRSTATUS_GET_SOURCE(x) ((x) & 0xf) -#define SAHARA_ERRSOURCE_CHA 14 -#define SAHARA_ERRSOURCE_DMA 15 -#define SAHARA_ERRSTATUS_DMA_DIR (1 << 8) -#define SAHARA_ERRSTATUS_GET_DMASZ(x)(((x) >> 9) & 0x3) -#define SAHARA_ERRSTATUS_GET_DMASRC(x) (((x) >> 13) & 0x7) -#define SAHARA_ERRSTATUS_GET_CHASRC(x) (((x) >> 16) & 0xfff) -#define SAHARA_ERRSTATUS_GET_CHAERR(x) (((x) >> 28) & 0x3) -#define SAHARA_REG_FADDR 0x18 -#define SAHARA_REG_CDAR 0x1C -#define SAHARA_REG_IDAR 0x20 +#define SHA_BUFFER_LEN PAGE_SIZE +#define SAHARA_MAX_SHA_BLOCK_SIZE SHA256_BLOCK_SIZE + +#define SAHARA_NAME "sahara" +#define SAHARA_VERSION_3 3 +#define SAHARA_VERSION_4 4 +#define SAHARA_TIMEOUT_MS 1000 +#define SAHARA_MAX_HW_DESC 2 +#define SAHARA_MAX_HW_LINK 20 + +#define FLAGS_MODE_MASK 0x000f +#define FLAGS_ENCRYPT BIT(0) +#define FLAGS_CBC BIT(1) + +#define SAHARA_HDR_BASE 0x00800000 +#define SAHARA_HDR_SKHA_ALG_AES 0 +#define SAHARA_HDR_SKHA_MODE_ECB 0 +#define SAHARA_HDR_SKHA_OP_ENC BIT(2) +#define SAHARA_HDR_SKHA_MODE_CBC BIT(3) +#define SAHARA_HDR_FORM_DATA (5 << 16) +#define SAHARA_HDR_FORM_KEY BIT(19) +#define SAHARA_HDR_LLO BIT(24) +#define SAHARA_HDR_CHA_SKHA BIT(28) +#define SAHARA_HDR_CHA_MDHA BIT(29) +#define SAHARA_HDR_PARITY_BIT BIT(31) + +#define SAHARA_HDR_MDHA_SET_MODE_MD_KEY 0x20880000 +#define SAHARA_HDR_MDHA_SET_MODE_HASH 0x208D0000 +#define SAHARA_HDR_MDHA_HASH 0xA0850000 +#define SAHARA_HDR_MDHA_STORE_DIGEST 0x20820000 +#define SAHARA_HDR_MDHA_ALG_SHA1 0 +#define SAHARA_HDR_MDHA_ALG_MD5 1 +#define SAHARA_HDR_MDHA_ALG_SHA256 2 +#define SAHARA_HDR_MDHA_ALG_SHA224 3 +#define SAHARA_HDR_MDHA_PDATA BIT(2) +#define SAHARA_HDR_MDHA_HMAC BIT(3) +#define SAHARA_HDR_MDHA_INIT BIT(5) +#define SAHARA_HDR_MDHA_IPAD BIT(6) +#define SAHARA_HDR_MDHA_OPAD BIT(7) +#define SAHARA_HDR_MDHA_SWAP BIT(8) +#define SAHARA_HDR_MDHA_MAC_FULL BIT(9) +#define SAHARA_HDR_MDHA_SSL BIT(10) + +#define SAHARA_REG_VERSION 0x00 +#define SAHARA_REG_DAR 0x04 +#define SAHARA_REG_CONTROL 0x08 +#define SAHARA_CONTROL_SET_THROTTLE(x) (((x) & 0xff) << 24) +#define SAHARA_CONTROL_SET_MAXBURST(x) (((x) & 0xff) << 16) +#define SAHARA_CONTROL_RNG_AUTORSD BIT(7) +#define SAHARA_CONTROL_ENABLE_INT BIT(4) +#define SAHARA_REG_CMD 0x0C +#define SAHARA_CMD_RESET BIT(0) +#define SAHARA_CMD_CLEAR_INT BIT(8) +#define SAHARA_CMD_CLEAR_ERR BIT(9) +#define SAHARA_CMD_SINGLE_STEP BIT(10) +#define SAHARA_CMD_MODE_BATCH BIT(16) +#define SAHARA_CMD_MODE_DEBUG BIT(18) +#define SAHARA_REG_STATUS 0x10 +#define SAHARA_STATUS_GET_STATE(x) ((x) & 0x7) +#define SAHARA_STATE_IDLE 0 +#define SAHARA_STATE_BUSY 1 +#define SAHARA_STATE_ERR 2 +#define SAHARA_STATE_FAULT 3 +#define SAHARA_STATE_COMPLETE 4 +#define SAHARA_STATE_COMP_FLAG BIT(2) +#define SAHARA_STATUS_DAR_FULL BIT(3) +#define SAHARA_STATUS_ERROR BIT(4) +#define SAHARA_STATUS_SECURE BIT(5) +#define SAHARA_STATUS_FAIL BIT(6) +#define SAHARA_STATUS_INIT BIT(7) +#define SAHARA_STATUS_RNG_RESEED BIT(8) +#define SAHARA_STATUS_ACTIVE_RNG BIT(9) +#define SAHARA_STATUS_ACTIVE_MDHA BIT(10) +#define SAHARA_STATUS_ACTIVE_SKHA BIT(11) +#define SAHARA_STATUS_MODE_BATCH BIT(16) +#define SAHARA_STATUS_MODE_DEDICATED BIT(17) +#define SAHARA_STATUS_MODE_DEBUG BIT(18) +#define SAHARA_STATUS_GET_ISTATE(x) (((x) >> 24) & 0xff) +#define SAHARA_REG_ERRSTATUS 0x14 +#define SAHARA_ERRSTATUS_GET_SOURCE(x) ((x) & 0xf) +#define SAHARA_ERRSOURCE_CHA 14 +#define SAHARA_ERRSOURCE_DMA 15 +#define SAHARA_ERRSTATUS_DMA_DIR BIT(8) +#define SAHARA_ERRSTATUS_GET_DMASZ(x) (((x) >> 9) & 0x3) +#define SAHARA_ERRSTATUS_GET_DMASRC(x) (((x) >> 13) & 0x7) +#define SAHARA_ERRSTATUS_GET_CHASRC(x) (((x) >> 16) & 0xfff) +#define SAHARA_ERRSTATUS_GET_CHAERR(x) (((x) >> 28) & 0x3) +#define SAHARA_REG_FADDR 0x18 +#define SAHARA_REG_CDAR 0x1C +#define SAHARA_REG_IDAR 0x20 struct sahara_hw_desc { u32 hdr; @@ -168,7 +165,6 @@ struct sahara_aes_reqctx { * @total: total number of bytes for transfer * @last: is this the last block * @first: is this the first block - * @active: inside a transfer */ struct sahara_sha_reqctx { u8 buf[SAHARA_MAX_SHA_BLOCK_SIZE]; @@ -184,7 +180,6 @@ struct sahara_sha_reqctx { size_t total; unsigned int last; unsigned int first; - unsigned int active; }; struct sahara_dev { @@ -193,12 +188,9 @@ struct sahara_dev { void __iomem *regs_base; struct clk *clk_ipg; struct clk *clk_ahb; - spinlock_t queue_spinlock; - struct task_struct *kthread; struct completion dma_completion; struct sahara_ctx *ctx; - struct crypto_queue queue; unsigned long flags; struct sahara_hw_desc *hw_desc[SAHARA_MAX_HW_DESC]; @@ -222,7 +214,7 @@ struct sahara_dev { struct scatterlist *out_sg; int nb_out_sg; - u32 error; + struct crypto_engine *engine; }; static struct sahara_dev *dev_ptr; @@ -675,7 +667,6 @@ static int sahara_aes_crypt(struct skcipher_request *req, unsigned long mode) struct sahara_ctx *ctx = crypto_skcipher_ctx( crypto_skcipher_reqtfm(req)); struct sahara_dev *dev = dev_ptr; - int err = 0; if (!req->cryptlen) return 0; @@ -686,21 +677,12 @@ static int sahara_aes_crypt(struct skcipher_request *req, unsigned long mode) dev_dbg(dev->device, "nbytes: %d, enc: %d, cbc: %d\n", req->cryptlen, !!(mode & FLAGS_ENCRYPT), !!(mode & FLAGS_CBC)); - if (!IS_ALIGNED(req->cryptlen, AES_BLOCK_SIZE)) { - dev_err(dev->device, - "request size is not exact amount of AES blocks\n"); + if (!IS_ALIGNED(req->cryptlen, AES_BLOCK_SIZE)) return -EINVAL; - } rctx->mode = mode; - spin_lock_bh(&dev->queue_spinlock); - err = crypto_enqueue_request(&dev->queue, &req->base); - spin_unlock_bh(&dev->queue_spinlock); - - wake_up_process(dev->kthread); - - return err; + return crypto_transfer_skcipher_request_to_engine(dev->engine, req); } static int sahara_aes_ecb_encrypt(struct skcipher_request *req) @@ -1001,45 +983,26 @@ static int sahara_sha_process(struct ahash_request *req) return 0; } -static int sahara_queue_manage(void *data) +static int sahara_do_one_request(struct crypto_engine *engine, void *areq) { - struct sahara_dev *dev = data; - struct crypto_async_request *async_req; - struct crypto_async_request *backlog; - int ret = 0; - - do { - __set_current_state(TASK_INTERRUPTIBLE); - - spin_lock_bh(&dev->queue_spinlock); - backlog = crypto_get_backlog(&dev->queue); - async_req = crypto_dequeue_request(&dev->queue); - spin_unlock_bh(&dev->queue_spinlock); - - if (backlog) - crypto_request_complete(backlog, -EINPROGRESS); - - if (async_req) { - if (crypto_tfm_alg_type(async_req->tfm) == - CRYPTO_ALG_TYPE_AHASH) { - struct ahash_request *req = - ahash_request_cast(async_req); - - ret = sahara_sha_process(req); - } else { - struct skcipher_request *req = - skcipher_request_cast(async_req); - - ret = sahara_aes_process(req); - } + struct crypto_async_request *async_req = areq; + int err; - crypto_request_complete(async_req, ret); + if (crypto_tfm_alg_type(async_req->tfm) == CRYPTO_ALG_TYPE_AHASH) { + struct ahash_request *req = ahash_request_cast(async_req); - continue; - } + err = sahara_sha_process(req); + local_bh_disable(); + crypto_finalize_hash_request(engine, req, err); + local_bh_enable(); + } else { + struct skcipher_request *req = skcipher_request_cast(async_req); - schedule(); - } while (!kthread_should_stop()); + err = sahara_aes_process(skcipher_request_cast(async_req)); + local_bh_disable(); + crypto_finalize_skcipher_request(engine, req, err); + local_bh_enable(); + } return 0; } @@ -1048,25 +1011,13 @@ static int sahara_sha_enqueue(struct ahash_request *req, int last) { struct sahara_sha_reqctx *rctx = ahash_request_ctx(req); struct sahara_dev *dev = dev_ptr; - int ret; if (!req->nbytes && !last) return 0; rctx->last = last; - if (!rctx->active) { - rctx->active = 1; - rctx->first = 1; - } - - spin_lock_bh(&dev->queue_spinlock); - ret = crypto_enqueue_request(&dev->queue, &req->base); - spin_unlock_bh(&dev->queue_spinlock); - - wake_up_process(dev->kthread); - - return ret; + return crypto_transfer_hash_request_to_engine(dev->engine, req); } static int sahara_sha_init(struct ahash_request *req) @@ -1090,7 +1041,7 @@ static int sahara_sha_init(struct ahash_request *req) } rctx->context_size = rctx->digest_size + 4; - rctx->active = 0; + rctx->first = 1; return 0; } @@ -1144,94 +1095,114 @@ static int sahara_sha_cra_init(struct crypto_tfm *tfm) return 0; } -static struct skcipher_alg aes_algs[] = { +static struct skcipher_engine_alg aes_algs[] = { { - .base.cra_name = "ecb(aes)", - .base.cra_driver_name = "sahara-ecb-aes", - .base.cra_priority = 300, - .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, - .base.cra_blocksize = AES_BLOCK_SIZE, - .base.cra_ctxsize = sizeof(struct sahara_ctx), - .base.cra_alignmask = 0x0, - .base.cra_module = THIS_MODULE, - - .init = sahara_aes_init_tfm, - .exit = sahara_aes_exit_tfm, - .min_keysize = AES_MIN_KEY_SIZE , - .max_keysize = AES_MAX_KEY_SIZE, - .setkey = sahara_aes_setkey, - .encrypt = sahara_aes_ecb_encrypt, - .decrypt = sahara_aes_ecb_decrypt, + .base = { + .base.cra_name = "ecb(aes)", + .base.cra_driver_name = "sahara-ecb-aes", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct sahara_ctx), + .base.cra_alignmask = 0x0, + .base.cra_module = THIS_MODULE, + + .init = sahara_aes_init_tfm, + .exit = sahara_aes_exit_tfm, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = sahara_aes_setkey, + .encrypt = sahara_aes_ecb_encrypt, + .decrypt = sahara_aes_ecb_decrypt, + }, + .op = { + .do_one_request = sahara_do_one_request, + }, }, { - .base.cra_name = "cbc(aes)", - .base.cra_driver_name = "sahara-cbc-aes", - .base.cra_priority = 300, - .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, - .base.cra_blocksize = AES_BLOCK_SIZE, - .base.cra_ctxsize = sizeof(struct sahara_ctx), - .base.cra_alignmask = 0x0, - .base.cra_module = THIS_MODULE, - - .init = sahara_aes_init_tfm, - .exit = sahara_aes_exit_tfm, - .min_keysize = AES_MIN_KEY_SIZE , - .max_keysize = AES_MAX_KEY_SIZE, - .ivsize = AES_BLOCK_SIZE, - .setkey = sahara_aes_setkey, - .encrypt = sahara_aes_cbc_encrypt, - .decrypt = sahara_aes_cbc_decrypt, + .base = { + .base.cra_name = "cbc(aes)", + .base.cra_driver_name = "sahara-cbc-aes", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct sahara_ctx), + .base.cra_alignmask = 0x0, + .base.cra_module = THIS_MODULE, + + .init = sahara_aes_init_tfm, + .exit = sahara_aes_exit_tfm, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = sahara_aes_setkey, + .encrypt = sahara_aes_cbc_encrypt, + .decrypt = sahara_aes_cbc_decrypt, + }, + .op = { + .do_one_request = sahara_do_one_request, + }, } }; -static struct ahash_alg sha_v3_algs[] = { +static struct ahash_engine_alg sha_v3_algs[] = { { - .init = sahara_sha_init, - .update = sahara_sha_update, - .final = sahara_sha_final, - .finup = sahara_sha_finup, - .digest = sahara_sha_digest, - .export = sahara_sha_export, - .import = sahara_sha_import, - .halg.digestsize = SHA1_DIGEST_SIZE, - .halg.statesize = sizeof(struct sahara_sha_reqctx), - .halg.base = { - .cra_name = "sha1", - .cra_driver_name = "sahara-sha1", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = SHA1_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sahara_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = sahara_sha_cra_init, - } + .base = { + .init = sahara_sha_init, + .update = sahara_sha_update, + .final = sahara_sha_final, + .finup = sahara_sha_finup, + .digest = sahara_sha_digest, + .export = sahara_sha_export, + .import = sahara_sha_import, + .halg.digestsize = SHA1_DIGEST_SIZE, + .halg.statesize = sizeof(struct sahara_sha_reqctx), + .halg.base = { + .cra_name = "sha1", + .cra_driver_name = "sahara-sha1", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct sahara_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_init = sahara_sha_cra_init, + } + }, + .op = { + .do_one_request = sahara_do_one_request, + }, }, }; -static struct ahash_alg sha_v4_algs[] = { +static struct ahash_engine_alg sha_v4_algs[] = { { - .init = sahara_sha_init, - .update = sahara_sha_update, - .final = sahara_sha_final, - .finup = sahara_sha_finup, - .digest = sahara_sha_digest, - .export = sahara_sha_export, - .import = sahara_sha_import, - .halg.digestsize = SHA256_DIGEST_SIZE, - .halg.statesize = sizeof(struct sahara_sha_reqctx), - .halg.base = { - .cra_name = "sha256", - .cra_driver_name = "sahara-sha256", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = SHA256_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sahara_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = sahara_sha_cra_init, - } + .base = { + .init = sahara_sha_init, + .update = sahara_sha_update, + .final = sahara_sha_final, + .finup = sahara_sha_finup, + .digest = sahara_sha_digest, + .export = sahara_sha_export, + .import = sahara_sha_import, + .halg.digestsize = SHA256_DIGEST_SIZE, + .halg.statesize = sizeof(struct sahara_sha_reqctx), + .halg.base = { + .cra_name = "sha256", + .cra_driver_name = "sahara-sha256", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct sahara_ctx), + .cra_alignmask = 0, + .cra_module = THIS_MODULE, + .cra_init = sahara_sha_cra_init, + } + }, + .op = { + .do_one_request = sahara_do_one_request, + }, }, }; @@ -1246,14 +1217,11 @@ static irqreturn_t sahara_irq_handler(int irq, void *data) sahara_decode_status(dev, stat); - if (SAHARA_STATUS_GET_STATE(stat) == SAHARA_STATE_BUSY) { + if (SAHARA_STATUS_GET_STATE(stat) == SAHARA_STATE_BUSY) return IRQ_NONE; - } else if (SAHARA_STATUS_GET_STATE(stat) == SAHARA_STATE_COMPLETE) { - dev->error = 0; - } else { + + if (SAHARA_STATUS_GET_STATE(stat) != SAHARA_STATE_COMPLETE) sahara_decode_error(dev, err); - dev->error = -EINVAL; - } complete(&dev->dma_completion); @@ -1264,57 +1232,42 @@ static irqreturn_t sahara_irq_handler(int irq, void *data) static int sahara_register_algs(struct sahara_dev *dev) { int err; - unsigned int i, j, k, l; - for (i = 0; i < ARRAY_SIZE(aes_algs); i++) { - err = crypto_register_skcipher(&aes_algs[i]); - if (err) - goto err_aes_algs; - } + err = crypto_engine_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs)); + if (err) + return err; - for (k = 0; k < ARRAY_SIZE(sha_v3_algs); k++) { - err = crypto_register_ahash(&sha_v3_algs[k]); + err = crypto_engine_register_ahashes(sha_v3_algs, + ARRAY_SIZE(sha_v3_algs)); + if (err) + goto err_aes_algs; + + if (dev->version > SAHARA_VERSION_3) { + err = crypto_engine_register_ahashes(sha_v4_algs, + ARRAY_SIZE(sha_v4_algs)); if (err) goto err_sha_v3_algs; } - if (dev->version > SAHARA_VERSION_3) - for (l = 0; l < ARRAY_SIZE(sha_v4_algs); l++) { - err = crypto_register_ahash(&sha_v4_algs[l]); - if (err) - goto err_sha_v4_algs; - } - return 0; -err_sha_v4_algs: - for (j = 0; j < l; j++) - crypto_unregister_ahash(&sha_v4_algs[j]); - err_sha_v3_algs: - for (j = 0; j < k; j++) - crypto_unregister_ahash(&sha_v3_algs[j]); + crypto_engine_unregister_ahashes(sha_v3_algs, ARRAY_SIZE(sha_v3_algs)); err_aes_algs: - for (j = 0; j < i; j++) - crypto_unregister_skcipher(&aes_algs[j]); + crypto_engine_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs)); return err; } static void sahara_unregister_algs(struct sahara_dev *dev) { - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(aes_algs); i++) - crypto_unregister_skcipher(&aes_algs[i]); - - for (i = 0; i < ARRAY_SIZE(sha_v3_algs); i++) - crypto_unregister_ahash(&sha_v3_algs[i]); + crypto_engine_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs)); + crypto_engine_unregister_ahashes(sha_v3_algs, ARRAY_SIZE(sha_v3_algs)); if (dev->version > SAHARA_VERSION_3) - for (i = 0; i < ARRAY_SIZE(sha_v4_algs); i++) - crypto_unregister_ahash(&sha_v4_algs[i]); + crypto_engine_unregister_ahashes(sha_v4_algs, + ARRAY_SIZE(sha_v4_algs)); } static const struct of_device_id sahara_dt_ids[] = { @@ -1351,32 +1304,27 @@ static int sahara_probe(struct platform_device *pdev) err = devm_request_irq(&pdev->dev, irq, sahara_irq_handler, 0, dev_name(&pdev->dev), dev); - if (err) { - dev_err(&pdev->dev, "failed to request irq\n"); - return err; - } + if (err) + return dev_err_probe(&pdev->dev, err, + "failed to request irq\n"); /* clocks */ - dev->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); - if (IS_ERR(dev->clk_ipg)) { - dev_err(&pdev->dev, "Could not get ipg clock\n"); - return PTR_ERR(dev->clk_ipg); - } + dev->clk_ipg = devm_clk_get_enabled(&pdev->dev, "ipg"); + if (IS_ERR(dev->clk_ipg)) + return dev_err_probe(&pdev->dev, PTR_ERR(dev->clk_ipg), + "Could not get ipg clock\n"); - dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); - if (IS_ERR(dev->clk_ahb)) { - dev_err(&pdev->dev, "Could not get ahb clock\n"); - return PTR_ERR(dev->clk_ahb); - } + dev->clk_ahb = devm_clk_get_enabled(&pdev->dev, "ahb"); + if (IS_ERR(dev->clk_ahb)) + return dev_err_probe(&pdev->dev, PTR_ERR(dev->clk_ahb), + "Could not get ahb clock\n"); /* Allocate HW descriptors */ dev->hw_desc[0] = dmam_alloc_coherent(&pdev->dev, SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc), &dev->hw_phys_desc[0], GFP_KERNEL); - if (!dev->hw_desc[0]) { - dev_err(&pdev->dev, "Could not allocate hw descriptors\n"); + if (!dev->hw_desc[0]) return -ENOMEM; - } dev->hw_desc[1] = dev->hw_desc[0] + 1; dev->hw_phys_desc[1] = dev->hw_phys_desc[0] + sizeof(struct sahara_hw_desc); @@ -1384,10 +1332,8 @@ static int sahara_probe(struct platform_device *pdev) /* Allocate space for iv and key */ dev->key_base = dmam_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, &dev->key_phys_base, GFP_KERNEL); - if (!dev->key_base) { - dev_err(&pdev->dev, "Could not allocate memory for key\n"); + if (!dev->key_base) return -ENOMEM; - } dev->iv_base = dev->key_base + AES_KEYSIZE_128; dev->iv_phys_base = dev->key_phys_base + AES_KEYSIZE_128; @@ -1395,45 +1341,36 @@ static int sahara_probe(struct platform_device *pdev) dev->context_base = dmam_alloc_coherent(&pdev->dev, SHA256_DIGEST_SIZE + 4, &dev->context_phys_base, GFP_KERNEL); - if (!dev->context_base) { - dev_err(&pdev->dev, "Could not allocate memory for MDHA context\n"); + if (!dev->context_base) return -ENOMEM; - } /* Allocate space for HW links */ dev->hw_link[0] = dmam_alloc_coherent(&pdev->dev, SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link), &dev->hw_phys_link[0], GFP_KERNEL); - if (!dev->hw_link[0]) { - dev_err(&pdev->dev, "Could not allocate hw links\n"); + if (!dev->hw_link[0]) return -ENOMEM; - } for (i = 1; i < SAHARA_MAX_HW_LINK; i++) { dev->hw_phys_link[i] = dev->hw_phys_link[i - 1] + sizeof(struct sahara_hw_link); dev->hw_link[i] = dev->hw_link[i - 1] + 1; } - crypto_init_queue(&dev->queue, SAHARA_QUEUE_LENGTH); - - spin_lock_init(&dev->queue_spinlock); - dev_ptr = dev; - dev->kthread = kthread_run(sahara_queue_manage, dev, "sahara_crypto"); - if (IS_ERR(dev->kthread)) { - return PTR_ERR(dev->kthread); + dev->engine = crypto_engine_alloc_init(&pdev->dev, true); + if (!dev->engine) + return -ENOMEM; + + err = crypto_engine_start(dev->engine); + if (err) { + crypto_engine_exit(dev->engine); + return dev_err_probe(&pdev->dev, err, + "Could not start crypto engine\n"); } init_completion(&dev->dma_completion); - err = clk_prepare_enable(dev->clk_ipg); - if (err) - return err; - err = clk_prepare_enable(dev->clk_ahb); - if (err) - goto clk_ipg_disable; - version = sahara_read(dev, SAHARA_REG_VERSION); if (of_device_is_compatible(pdev->dev.of_node, "fsl,imx27-sahara")) { if (version != SAHARA_VERSION_3) @@ -1445,8 +1382,8 @@ static int sahara_probe(struct platform_device *pdev) version = (version >> 8) & 0xff; } if (err == -ENODEV) { - dev_err(&pdev->dev, "SAHARA version %d not supported\n", - version); + dev_err_probe(&pdev->dev, err, + "SAHARA version %d not supported\n", version); goto err_algs; } @@ -1469,11 +1406,7 @@ static int sahara_probe(struct platform_device *pdev) return 0; err_algs: - kthread_stop(dev->kthread); - dev_ptr = NULL; - clk_disable_unprepare(dev->clk_ahb); -clk_ipg_disable: - clk_disable_unprepare(dev->clk_ipg); + crypto_engine_exit(dev->engine); return err; } @@ -1482,14 +1415,8 @@ static void sahara_remove(struct platform_device *pdev) { struct sahara_dev *dev = platform_get_drvdata(pdev); - kthread_stop(dev->kthread); - + crypto_engine_exit(dev->engine); sahara_unregister_algs(dev); - - clk_disable_unprepare(dev->clk_ipg); - clk_disable_unprepare(dev->clk_ahb); - - dev_ptr = NULL; } static struct platform_driver sahara_driver = { |