diff options
Diffstat (limited to 'drivers/crypto/omap-sham.c')
| -rw-r--r-- | drivers/crypto/omap-sham.c | 333 |
1 files changed, 159 insertions, 174 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index cbeda59c6b19..ff8aac02994a 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -13,34 +13,31 @@ #define pr_fmt(fmt) "%s: " fmt, __func__ +#include <crypto/engine.h> +#include <crypto/hmac.h> +#include <crypto/internal/hash.h> +#include <crypto/scatterwalk.h> +#include <crypto/sha1.h> +#include <crypto/sha2.h> #include <linux/err.h> #include <linux/device.h> -#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/dmaengine.h> #include <linux/init.h> -#include <linux/errno.h> #include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/irq.h> #include <linux/io.h> -#include <linux/platform_device.h> -#include <linux/scatterlist.h> -#include <linux/dma-mapping.h> -#include <linux/dmaengine.h> -#include <linux/pm_runtime.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> -#include <linux/of_device.h> #include <linux/of_address.h> #include <linux/of_irq.h> -#include <linux/delay.h> -#include <linux/crypto.h> -#include <crypto/scatterwalk.h> -#include <crypto/algapi.h> -#include <crypto/sha1.h> -#include <crypto/sha2.h> -#include <crypto/hash.h> -#include <crypto/hmac.h> -#include <crypto/internal/hash.h> -#include <crypto/engine.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/scatterlist.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/workqueue.h> #define MD5_DIGEST_SIZE 16 @@ -168,7 +165,6 @@ struct omap_sham_hmac_ctx { }; struct omap_sham_ctx { - struct crypto_engine_ctx enginectx; unsigned long flags; /* fallback stuff */ @@ -180,7 +176,7 @@ struct omap_sham_ctx { #define OMAP_SHAM_QUEUE_LENGTH 10 struct omap_sham_algs_info { - struct ahash_alg *algs_list; + struct ahash_engine_alg *algs_list; unsigned int size; unsigned int registered; }; @@ -222,7 +218,7 @@ struct omap_sham_dev { int irq; int err; struct dma_chan *dma_lch; - struct tasklet_struct done_task; + struct work_struct done_task; u8 polling_mode; u8 xmit_buf[BUFLEN] OMAP_ALIGNED; @@ -361,10 +357,10 @@ static void omap_sham_copy_ready_hash(struct ahash_request *req) if (big_endian) for (i = 0; i < d; i++) - hash[i] = be32_to_cpup((__be32 *)in + i); + put_unaligned(be32_to_cpup((__be32 *)in + i), &hash[i]); else for (i = 0; i < d; i++) - hash[i] = le32_to_cpup((__le32 *)in + i); + put_unaligned(le32_to_cpup((__le32 *)in + i), &hash[i]); } static void omap_sham_write_ctrl_omap2(struct omap_sham_dev *dd, size_t length, @@ -566,7 +562,7 @@ static void omap_sham_dma_callback(void *param) struct omap_sham_dev *dd = param; set_bit(FLAGS_DMA_READY, &dd->flags); - tasklet_schedule(&dd->done_task); + queue_work(system_bh_wq, &dd->done_task); } static int omap_sham_xmit_dma(struct omap_sham_dev *dd, size_t length, @@ -1074,6 +1070,10 @@ static int omap_sham_hash_one_req(struct crypto_engine *engine, void *areq) dev_dbg(dd->dev, "hash-one: op: %u, total: %u, digcnt: %zd, final: %d", ctx->op, ctx->total, ctx->digcnt, final); + err = omap_sham_prepare_request(engine, areq); + if (err) + return err; + err = pm_runtime_resume_and_get(dd->dev); if (err < 0) { dev_err(dd->dev, "failed to get sync: %d\n", err); @@ -1168,7 +1168,6 @@ static void omap_sham_finish_req(struct ahash_request *req, int err) dd->flags &= ~(BIT(FLAGS_FINAL) | BIT(FLAGS_CPU) | BIT(FLAGS_DMA_READY) | BIT(FLAGS_OUTPUT_READY)); - pm_runtime_mark_last_busy(dd->dev); pm_runtime_put_autosuspend(dd->dev); ctx->offset = 0; @@ -1349,10 +1348,6 @@ static int omap_sham_cra_init_alg(struct crypto_tfm *tfm, const char *alg_base) } - tctx->enginectx.op.do_one_request = omap_sham_hash_one_req; - tctx->enginectx.op.prepare_request = omap_sham_prepare_request; - tctx->enginectx.op.unprepare_request = NULL; - return 0; } @@ -1423,15 +1418,15 @@ static int omap_sham_import(struct ahash_request *req, const void *in) return 0; } -static struct ahash_alg algs_sha1_md5[] = { +static struct ahash_engine_alg algs_sha1_md5[] = { { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = SHA1_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = SHA1_DIGEST_SIZE, + .base.halg.base = { .cra_name = "sha1", .cra_driver_name = "omap-sha1", .cra_priority = 400, @@ -1440,20 +1435,20 @@ static struct ahash_alg algs_sha1_md5[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = MD5_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = MD5_DIGEST_SIZE, + .base.halg.base = { .cra_name = "md5", .cra_driver_name = "omap-md5", .cra_priority = 400, @@ -1462,21 +1457,21 @@ static struct ahash_alg algs_sha1_md5[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = SHA1_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = SHA1_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(sha1)", .cra_driver_name = "omap-hmac-sha1", .cra_priority = 400, @@ -1486,21 +1481,21 @@ static struct ahash_alg algs_sha1_md5[] = { .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_sha1_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = MD5_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = MD5_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(md5)", .cra_driver_name = "omap-hmac-md5", .cra_priority = 400, @@ -1510,24 +1505,24 @@ static struct ahash_alg algs_sha1_md5[] = { .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_md5_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, } }; /* OMAP4 has some algs in addition to what OMAP2 has */ -static struct ahash_alg algs_sha224_sha256[] = { -{ - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = SHA224_DIGEST_SIZE, - .halg.base = { +static struct ahash_engine_alg algs_sha224_sha256[] = { +{ + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = SHA224_DIGEST_SIZE, + .base.halg.base = { .cra_name = "sha224", .cra_driver_name = "omap-sha224", .cra_priority = 400, @@ -1536,20 +1531,20 @@ static struct ahash_alg algs_sha224_sha256[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA224_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = SHA256_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = SHA256_DIGEST_SIZE, + .base.halg.base = { .cra_name = "sha256", .cra_driver_name = "omap-sha256", .cra_priority = 400, @@ -1558,21 +1553,21 @@ static struct ahash_alg algs_sha224_sha256[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = SHA224_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = SHA224_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(sha224)", .cra_driver_name = "omap-hmac-sha224", .cra_priority = 400, @@ -1582,21 +1577,21 @@ static struct ahash_alg algs_sha224_sha256[] = { .cra_blocksize = SHA224_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_sha224_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = SHA256_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = SHA256_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(sha256)", .cra_driver_name = "omap-hmac-sha256", .cra_priority = 400, @@ -1606,23 +1601,23 @@ static struct ahash_alg algs_sha224_sha256[] = { .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_sha256_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, }; -static struct ahash_alg algs_sha384_sha512[] = { +static struct ahash_engine_alg algs_sha384_sha512[] = { { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = SHA384_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = SHA384_DIGEST_SIZE, + .base.halg.base = { .cra_name = "sha384", .cra_driver_name = "omap-sha384", .cra_priority = 400, @@ -1631,20 +1626,20 @@ static struct ahash_alg algs_sha384_sha512[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA384_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .halg.digestsize = SHA512_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.halg.digestsize = SHA512_DIGEST_SIZE, + .base.halg.base = { .cra_name = "sha512", .cra_driver_name = "omap-sha512", .cra_priority = 400, @@ -1653,21 +1648,21 @@ static struct ahash_alg algs_sha384_sha512[] = { CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA512_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = SHA384_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = SHA384_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(sha384)", .cra_driver_name = "omap-hmac-sha384", .cra_priority = 400, @@ -1677,21 +1672,21 @@ static struct ahash_alg algs_sha384_sha512[] = { .cra_blocksize = SHA384_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_sha384_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, { - .init = omap_sham_init, - .update = omap_sham_update, - .final = omap_sham_final, - .finup = omap_sham_finup, - .digest = omap_sham_digest, - .setkey = omap_sham_setkey, - .halg.digestsize = SHA512_DIGEST_SIZE, - .halg.base = { + .base.init = omap_sham_init, + .base.update = omap_sham_update, + .base.final = omap_sham_final, + .base.finup = omap_sham_finup, + .base.digest = omap_sham_digest, + .base.setkey = omap_sham_setkey, + .base.halg.digestsize = SHA512_DIGEST_SIZE, + .base.halg.base = { .cra_name = "hmac(sha512)", .cra_driver_name = "omap-hmac-sha512", .cra_priority = 400, @@ -1701,17 +1696,17 @@ static struct ahash_alg algs_sha384_sha512[] = { .cra_blocksize = SHA512_BLOCK_SIZE, .cra_ctxsize = sizeof(struct omap_sham_ctx) + sizeof(struct omap_sham_hmac_ctx), - .cra_alignmask = OMAP_ALIGN_MASK, .cra_module = THIS_MODULE, .cra_init = omap_sham_cra_sha512_init, .cra_exit = omap_sham_cra_exit, - } + }, + .op.do_one_request = omap_sham_hash_one_req, }, }; -static void omap_sham_done_task(unsigned long data) +static void omap_sham_done_task(struct work_struct *t) { - struct omap_sham_dev *dd = (struct omap_sham_dev *)data; + struct omap_sham_dev *dd = from_work(dd, t, done_task); int err = 0; dev_dbg(dd->dev, "%s: flags=%lx\n", __func__, dd->flags); @@ -1745,7 +1740,7 @@ finish: static irqreturn_t omap_sham_irq_common(struct omap_sham_dev *dd) { set_bit(FLAGS_OUTPUT_READY, &dd->flags); - tasklet_schedule(&dd->done_task); + queue_work(system_bh_wq, &dd->done_task); return IRQ_HANDLED; } @@ -2044,10 +2039,7 @@ static struct attribute *omap_sham_attrs[] = { &dev_attr_fallback.attr, NULL, }; - -static const struct attribute_group omap_sham_attr_group = { - .attrs = omap_sham_attrs, -}; +ATTRIBUTE_GROUPS(omap_sham); static int omap_sham_probe(struct platform_device *pdev) { @@ -2068,7 +2060,7 @@ static int omap_sham_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dd); INIT_LIST_HEAD(&dd->list); - tasklet_init(&dd->done_task, omap_sham_done_task, (unsigned long)dd); + INIT_WORK(&dd->done_task, omap_sham_done_task); crypto_init_queue(&dd->queue, OMAP_SHAM_QUEUE_LENGTH); err = (dev->of_node) ? omap_sham_get_res_of(dd, dev, &res) : @@ -2146,14 +2138,16 @@ static int omap_sham_probe(struct platform_device *pdev) break; for (j = 0; j < dd->pdata->algs_info[i].size; j++) { + struct ahash_engine_alg *ealg; struct ahash_alg *alg; - alg = &dd->pdata->algs_info[i].algs_list[j]; + ealg = &dd->pdata->algs_info[i].algs_list[j]; + alg = &ealg->base; alg->export = omap_sham_export; alg->import = omap_sham_import; alg->halg.statesize = sizeof(struct omap_sham_reqctx) + BUFLEN; - err = crypto_register_ahash(alg); + err = crypto_engine_register_ahash(ealg); if (err) goto err_algs; @@ -2161,18 +2155,12 @@ static int omap_sham_probe(struct platform_device *pdev) } } - err = sysfs_create_group(&dev->kobj, &omap_sham_attr_group); - if (err) { - dev_err(dev, "could not create sysfs device attrs\n"); - goto err_algs; - } - return 0; err_algs: for (i = dd->pdata->algs_info_size - 1; i >= 0; i--) for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--) - crypto_unregister_ahash( + crypto_engine_unregister_ahash( &dd->pdata->algs_info[i].algs_list[j]); err_engine_start: crypto_engine_exit(dd->engine); @@ -2191,7 +2179,7 @@ data_err: return err; } -static int omap_sham_remove(struct platform_device *pdev) +static void omap_sham_remove(struct platform_device *pdev) { struct omap_sham_dev *dd; int i, j; @@ -2203,28 +2191,25 @@ static int omap_sham_remove(struct platform_device *pdev) spin_unlock_bh(&sham.lock); for (i = dd->pdata->algs_info_size - 1; i >= 0; i--) for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--) { - crypto_unregister_ahash( + crypto_engine_unregister_ahash( &dd->pdata->algs_info[i].algs_list[j]); dd->pdata->algs_info[i].registered--; } - tasklet_kill(&dd->done_task); + cancel_work_sync(&dd->done_task); pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_disable(&pdev->dev); if (!dd->polling_mode) dma_release_channel(dd->dma_lch); - - sysfs_remove_group(&dd->dev->kobj, &omap_sham_attr_group); - - return 0; } static struct platform_driver omap_sham_driver = { .probe = omap_sham_probe, - .remove = omap_sham_remove, + .remove = omap_sham_remove, .driver = { .name = "omap-sham", .of_match_table = omap_sham_of_match, + .dev_groups = omap_sham_groups, }, }; |
