From nobody Sat Sep 13 22:28:05 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2420EC7EE32 for ; Mon, 15 May 2023 12:55:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242060AbjEOMzE convert rfc822-to-8bit (ORCPT ); Mon, 15 May 2023 08:55:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242040AbjEOMyk (ORCPT ); Mon, 15 May 2023 08:54:40 -0400 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7F7019A6; Mon, 15 May 2023 05:54:36 -0700 (PDT) Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 6FDC824E176; Mon, 15 May 2023 20:54:35 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 15 May 2023 20:54:35 +0800 Received: from ubuntu.localdomain (161.142.156.10) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 15 May 2023 20:54:28 +0800 From: Jia Jie Ho To: Herbert Xu , "David S . Miller" , Rob Herring , Krzysztof Kozlowski , Emil Renner Berthing , Conor Dooley CC: , , , Subject: [PATCH v8 4/4] crypto: starfive - Add hash and HMAC support Date: Mon, 15 May 2023 20:53:55 +0800 Message-ID: <20230515125355.624250-5-jiajie.ho@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230515125355.624250-1-jiajie.ho@starfivetech.com> References: <20230515125355.624250-1-jiajie.ho@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [161.142.156.10] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Adding hash/HMAC support for SHA-2 and SM3 to StarFive cryptographic module. Co-developed-by: Huan Feng Signed-off-by: Huan Feng Signed-off-by: Jia Jie Ho --- drivers/crypto/starfive/Kconfig | 4 + drivers/crypto/starfive/Makefile | 2 +- drivers/crypto/starfive/jh7110-cryp.c | 39 ++ drivers/crypto/starfive/jh7110-cryp.h | 70 +- drivers/crypto/starfive/jh7110-hash.c | 892 ++++++++++++++++++++++++++ 5 files changed, 1003 insertions(+), 4 deletions(-) create mode 100644 drivers/crypto/starfive/jh7110-hash.c diff --git a/drivers/crypto/starfive/Kconfig b/drivers/crypto/starfive/Kcon= fig index 7a5a5d9f90ed..be58d1473523 100644 --- a/drivers/crypto/starfive/Kconfig +++ b/drivers/crypto/starfive/Kconfig @@ -6,6 +6,10 @@ config CRYPTO_DEV_JH7110 tristate "StarFive JH7110 cryptographic engine driver" depends on SOC_STARFIVE || COMPILE_TEST select CRYPTO_ENGINE + select CRYPTO_HMAC + select CRYPTO_SHA256 + select CRYPTO_SHA512 + select CRYPTO_SM3_GENERIC select ARM_AMBA select DMADEVICES select AMBA_PL08X diff --git a/drivers/crypto/starfive/Makefile b/drivers/crypto/starfive/Mak= efile index 41221acaee39..2af49062e36d 100644 --- a/drivers/crypto/starfive/Makefile +++ b/drivers/crypto/starfive/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 =20 obj-$(CONFIG_CRYPTO_DEV_JH7110) +=3D jh7110-crypto.o -jh7110-crypto-objs :=3D jh7110-cryp.o +jh7110-crypto-objs :=3D jh7110-cryp.o jh7110-hash.o diff --git a/drivers/crypto/starfive/jh7110-cryp.c b/drivers/crypto/starfiv= e/jh7110-cryp.c index 4b2505c23168..279b19f51cb4 100644 --- a/drivers/crypto/starfive/jh7110-cryp.c +++ b/drivers/crypto/starfive/jh7110-cryp.c @@ -79,10 +79,25 @@ static void starfive_dma_cleanup(struct starfive_cryp_d= ev *cryp) dma_release_channel(cryp->rx); } =20 +static irqreturn_t starfive_cryp_irq(int irq, void *priv) +{ + u32 status; + struct starfive_cryp_dev *cryp =3D (struct starfive_cryp_dev *)priv; + + status =3D readl(cryp->base + STARFIVE_IE_FLAG_OFFSET); + if (status & STARFIVE_IE_FLAG_HASH_DONE) { + writel(STARFIVE_IE_MASK_HASH_DONE, cryp->base + STARFIVE_IE_MASK_OFFSET); + tasklet_schedule(&cryp->hash_done); + } + + return IRQ_HANDLED; +} + static int starfive_cryp_probe(struct platform_device *pdev) { struct starfive_cryp_dev *cryp; struct resource *res; + int irq; int ret; =20 cryp =3D devm_kzalloc(&pdev->dev, sizeof(*cryp), GFP_KERNEL); @@ -97,6 +112,8 @@ static int starfive_cryp_probe(struct platform_device *p= dev) return dev_err_probe(&pdev->dev, PTR_ERR(cryp->base), "Error remapping memory for platform device\n"); =20 + tasklet_init(&cryp->hash_done, starfive_hash_done_task, (unsigned long)cr= yp); + cryp->phys_base =3D res->start; cryp->dma_maxburst =3D 32; =20 @@ -115,6 +132,16 @@ static int starfive_cryp_probe(struct platform_device = *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(cryp->rst), "Error getting hardware reset line\n"); =20 + irq =3D platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + ret =3D devm_request_irq(&pdev->dev, irq, starfive_cryp_irq, 0, pdev->nam= e, + (void *)cryp); + if (ret) + return dev_err_probe(&pdev->dev, irq, + "Failed to register interrupt handler\n"); + clk_prepare_enable(cryp->hclk); clk_prepare_enable(cryp->ahb); reset_control_deassert(cryp->rst); @@ -142,8 +169,14 @@ static int starfive_cryp_probe(struct platform_device = *pdev) if (ret) goto err_engine_start; =20 + ret =3D starfive_hash_register_algs(); + if (ret) + goto err_algs_hash; + return 0; =20 +err_algs_hash: + crypto_engine_stop(cryp->engine); err_engine_start: crypto_engine_exit(cryp->engine); err_engine: @@ -156,6 +189,8 @@ static int starfive_cryp_probe(struct platform_device *= pdev) clk_disable_unprepare(cryp->hclk); clk_disable_unprepare(cryp->ahb); reset_control_assert(cryp->rst); + + tasklet_kill(&cryp->hash_done); err_probe_defer: return ret; } @@ -164,6 +199,10 @@ static int starfive_cryp_remove(struct platform_device= *pdev) { struct starfive_cryp_dev *cryp =3D platform_get_drvdata(pdev); =20 + starfive_hash_unregister_algs(); + + tasklet_kill(&cryp->hash_done); + crypto_engine_stop(cryp->engine); crypto_engine_exit(cryp->engine); =20 diff --git a/drivers/crypto/starfive/jh7110-cryp.h b/drivers/crypto/starfiv= e/jh7110-cryp.h index 393efd38b098..021d6e24bc86 100644 --- a/drivers/crypto/starfive/jh7110-cryp.h +++ b/drivers/crypto/starfive/jh7110-cryp.h @@ -7,6 +7,8 @@ #include =20 #include +#include +#include =20 #define STARFIVE_ALG_CR_OFFSET 0x0 #define STARFIVE_ALG_FIFO_OFFSET 0x4 @@ -15,7 +17,43 @@ #define STARFIVE_DMA_IN_LEN_OFFSET 0x10 #define STARFIVE_DMA_OUT_LEN_OFFSET 0x14 =20 +#define STARFIVE_IE_MASK_HASH_DONE 0x4 +#define STARFIVE_IE_FLAG_HASH_DONE 0x4 + #define STARFIVE_MSG_BUFFER_SIZE SZ_16K +#define MAX_KEY_SIZE SHA512_BLOCK_SIZE + +union starfive_hash_csr { + u32 v; + struct { + u32 start :1; + u32 reset :1; + u32 ie :1; + u32 firstb :1; +#define STARFIVE_HASH_SM3 0x0 +#define STARFIVE_HASH_SHA224 0x3 +#define STARFIVE_HASH_SHA256 0x4 +#define STARFIVE_HASH_SHA384 0x5 +#define STARFIVE_HASH_SHA512 0x6 +#define STARFIVE_HASH_MODE_MASK 0x7 + u32 mode :3; + u32 rsvd_1 :1; + u32 final :1; + u32 rsvd_2 :2; +#define STARFIVE_HASH_HMAC_FLAGS 0x800 + u32 hmac :1; + u32 rsvd_3 :1; +#define STARFIVE_HASH_KEY_DONE BIT(13) + u32 key_done :1; + u32 key_flag :1; + u32 hmac_done :1; +#define STARFIVE_HASH_BUSY BIT(16) + u32 busy :1; + u32 hashdone :1; + u32 rsvd_4 :14; + }; +}; + =20 union starfive_alg_cr { u32 v; @@ -34,12 +72,18 @@ union starfive_alg_cr { struct starfive_cryp_ctx { struct crypto_engine_ctx enginectx; struct starfive_cryp_dev *cryp; + struct starfive_cryp_request_ctx *rctx; + + unsigned int hash_mode; + u8 key[MAX_KEY_SIZE]; + int keylen; + bool is_hmac; + struct crypto_ahash *ahash_fbk; }; =20 struct starfive_cryp_dev { struct list_head list; struct device *dev; - struct clk *hclk; struct clk *ahb; struct reset_control *rst; @@ -52,12 +96,32 @@ struct starfive_cryp_dev { struct dma_chan *rx; struct dma_slave_config cfg_in; struct dma_slave_config cfg_out; - struct crypto_engine *engine; - + struct tasklet_struct hash_done; + int err; union starfive_alg_cr alg_cr; + union { + struct ahash_request *hreq; + } req; +}; + +struct starfive_cryp_request_ctx { + union { + union starfive_hash_csr hash; + } csr; + + struct scatterlist *in_sg; + struct ahash_request ahash_fbk_req; + size_t total; + unsigned int blksize; + unsigned int digsize; + unsigned long in_sg_len; }; =20 struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx = *ctx); =20 +int starfive_hash_register_algs(void); +void starfive_hash_unregister_algs(void); + +void starfive_hash_done_task(unsigned long param); #endif diff --git a/drivers/crypto/starfive/jh7110-hash.c b/drivers/crypto/starfiv= e/jh7110-hash.c new file mode 100644 index 000000000000..3801e44f2f33 --- /dev/null +++ b/drivers/crypto/starfive/jh7110-hash.c @@ -0,0 +1,892 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hash function and HMAC support for StarFive driver + * + * Copyright (c) 2022 StarFive Technology + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "jh7110-cryp.h" + +#define STARFIVE_HASH_REGS_OFFSET 0x300 +#define STARFIVE_HASH_SHACSR (STARFIVE_HASH_REGS_OFFSET + 0x0) +#define STARFIVE_HASH_SHAWDR (STARFIVE_HASH_REGS_OFFSET + 0x4) +#define STARFIVE_HASH_SHARDR (STARFIVE_HASH_REGS_OFFSET + 0x8) +#define STARFIVE_HASH_SHAWSR (STARFIVE_HASH_REGS_OFFSET + 0xC) +#define STARFIVE_HASH_SHAWLEN3 (STARFIVE_HASH_REGS_OFFSET + 0x10) +#define STARFIVE_HASH_SHAWLEN2 (STARFIVE_HASH_REGS_OFFSET + 0x14) +#define STARFIVE_HASH_SHAWLEN1 (STARFIVE_HASH_REGS_OFFSET + 0x18) +#define STARFIVE_HASH_SHAWLEN0 (STARFIVE_HASH_REGS_OFFSET + 0x1C) +#define STARFIVE_HASH_SHAWKR (STARFIVE_HASH_REGS_OFFSET + 0x20) +#define STARFIVE_HASH_SHAWKLEN (STARFIVE_HASH_REGS_OFFSET + 0x24) + +#define STARFIVE_HASH_BUFLEN SHA512_BLOCK_SIZE + +static inline int starfive_hash_wait_busy(struct starfive_cryp_ctx *ctx) +{ + struct starfive_cryp_dev *cryp =3D ctx->cryp; + u32 status; + + return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, stat= us, + !(status & STARFIVE_HASH_BUSY), 10, 100000); +} + +static inline int starfive_hash_wait_key_done(struct starfive_cryp_ctx *ct= x) +{ + struct starfive_cryp_dev *cryp =3D ctx->cryp; + u32 status; + + return readl_relaxed_poll_timeout(cryp->base + STARFIVE_HASH_SHACSR, stat= us, + (status & STARFIVE_HASH_KEY_DONE), 10, 100000); +} + +static int starfive_hash_hmac_key(struct starfive_cryp_ctx *ctx) +{ + struct starfive_cryp_request_ctx *rctx =3D ctx->rctx; + struct starfive_cryp_dev *cryp =3D ctx->cryp; + int klen =3D ctx->keylen, loop; + unsigned int *key =3D (unsigned int *)ctx->key; + unsigned char *cl; + + writel(ctx->keylen, cryp->base + STARFIVE_HASH_SHAWKLEN); + + rctx->csr.hash.hmac =3D 1; + rctx->csr.hash.key_flag =3D 1; + + writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR); + + for (loop =3D 0; loop < klen / sizeof(unsigned int); loop++, key++) + writel(*key, cryp->base + STARFIVE_HASH_SHAWKR); + + if (klen & 0x3) { + cl =3D (unsigned char *)key; + for (loop =3D 0; loop < (klen & 0x3); loop++, cl++) + writeb(*cl, cryp->base + STARFIVE_HASH_SHAWKR); + } + + if (starfive_hash_wait_key_done(ctx)) + return dev_err_probe(cryp->dev, -ETIMEDOUT, "starfive_hash_wait_key_done= error\n"); + + return 0; +} + +static void starfive_hash_start(void *param) +{ + struct starfive_cryp_ctx *ctx =3D param; + struct starfive_cryp_request_ctx *rctx =3D ctx->rctx; + struct starfive_cryp_dev *cryp =3D ctx->cryp; + union starfive_alg_cr alg_cr; + union starfive_hash_csr csr; + + dma_unmap_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE); + + alg_cr.v =3D 0; + alg_cr.clear =3D 1; + + writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET); + + csr.v =3D readl(cryp->base + STARFIVE_HASH_SHACSR); + csr.firstb =3D 0; + csr.final =3D 1; + + writel(~STARFIVE_IE_MASK_HASH_DONE, cryp->base + STARFIVE_IE_MASK_OFFSET); + writel(csr.v, cryp->base + STARFIVE_HASH_SHACSR); +} + +static int starfive_hash_xmit_dma(struct starfive_cryp_ctx *ctx) +{ + struct starfive_cryp_request_ctx *rctx =3D ctx->rctx; + struct starfive_cryp_dev *cryp =3D ctx->cryp; + struct dma_async_tx_descriptor *in_desc; + union starfive_alg_cr alg_cr; + int total_len; + int ret; + + if (!rctx->total) { + starfive_hash_start(ctx); + return 0; + } + + writel(rctx->total, cryp->base + STARFIVE_DMA_IN_LEN_OFFSET); + + total_len =3D rctx->total; + total_len =3D (total_len & 0x3) ? (((total_len >> 2) + 1) << 2) : total_l= en; + sg_dma_len(rctx->in_sg) =3D total_len; + + alg_cr.v =3D 0; + alg_cr.start =3D 1; + alg_cr.hash_dma_en =3D 1; + + writel(alg_cr.v, cryp->base + STARFIVE_ALG_CR_OFFSET); + + ret =3D dma_map_sg(cryp->dev, rctx->in_sg, rctx->in_sg_len, DMA_TO_DEVICE= ); + if (!ret) + return dev_err_probe(cryp->dev, -EINVAL, "dma_map_sg() error\n"); + + cryp->cfg_in.direction =3D DMA_MEM_TO_DEV; + cryp->cfg_in.src_addr_width =3D DMA_SLAVE_BUSWIDTH_4_BYTES; + cryp->cfg_in.dst_addr_width =3D DMA_SLAVE_BUSWIDTH_4_BYTES; + cryp->cfg_in.src_maxburst =3D cryp->dma_maxburst; + cryp->cfg_in.dst_maxburst =3D cryp->dma_maxburst; + cryp->cfg_in.dst_addr =3D cryp->phys_base + STARFIVE_ALG_FIFO_OFFSET; + + dmaengine_slave_config(cryp->tx, &cryp->cfg_in); + + in_desc =3D dmaengine_prep_slave_sg(cryp->tx, rctx->in_sg, + ret, DMA_MEM_TO_DEV, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + + if (!in_desc) + return -EINVAL; + + in_desc->callback =3D starfive_hash_start; + in_desc->callback_param =3D ctx; + + dmaengine_submit(in_desc); + dma_async_issue_pending(cryp->tx); + + return 0; +} + +static int starfive_hash_xmit(struct starfive_cryp_ctx *ctx) +{ + struct starfive_cryp_request_ctx *rctx =3D ctx->rctx; + struct starfive_cryp_dev *cryp =3D ctx->cryp; + int ret =3D 0; + + rctx->csr.hash.v =3D 0; + rctx->csr.hash.reset =3D 1; + writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR); + + if (starfive_hash_wait_busy(ctx)) + return dev_err_probe(cryp->dev, -ETIMEDOUT, "Error resetting engine.\n"); + + rctx->csr.hash.v =3D 0; + rctx->csr.hash.mode =3D ctx->hash_mode; + rctx->csr.hash.ie =3D 1; + + if (ctx->is_hmac) { + ret =3D starfive_hash_hmac_key(ctx); + if (ret) + return ret; + } else { + rctx->csr.hash.start =3D 1; + rctx->csr.hash.firstb =3D 1; + writel(rctx->csr.hash.v, cryp->base + STARFIVE_HASH_SHACSR); + } + + return starfive_hash_xmit_dma(ctx); +} + +static int starfive_hash_copy_hash(struct ahash_request *req) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(crypto_ahash_reqtfm(re= q)); + int count, *data; + int mlen; + + if (!req->result) + return 0; + + mlen =3D rctx->digsize / sizeof(u32); + data =3D (u32 *)req->result; + + for (count =3D 0; count < mlen; count++) + data[count] =3D readl(ctx->cryp->base + STARFIVE_HASH_SHARDR); + + return 0; +} + +void starfive_hash_done_task(unsigned long param) +{ + struct starfive_cryp_dev *cryp =3D (struct starfive_cryp_dev *)param; + int err =3D cryp->err; + + if (!err) + err =3D starfive_hash_copy_hash(cryp->req.hreq); + + crypto_finalize_hash_request(cryp->engine, cryp->req.hreq, err); +} + +static int starfive_hash_check_aligned(struct scatterlist *sg, size_t tota= l, size_t align) +{ + int len =3D 0; + + if (!total) + return 0; + + if (!IS_ALIGNED(total, align)) + return -EINVAL; + + while (sg) { + if (!IS_ALIGNED(sg->offset, sizeof(u32))) + return -EINVAL; + + if (!IS_ALIGNED(sg->length, align)) + return -EINVAL; + + len +=3D sg->length; + sg =3D sg_next(sg); + } + + if (len !=3D total) + return -EINVAL; + + return 0; +} + +static int starfive_hash_one_request(struct crypto_engine *engine, void *a= req) +{ + struct ahash_request *req =3D container_of(areq, struct ahash_request, + base); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(crypto_ahash_reqtfm(re= q)); + struct starfive_cryp_dev *cryp =3D ctx->cryp; + + if (!cryp) + return -ENODEV; + + return starfive_hash_xmit(ctx); +} + +static int starfive_hash_init(struct ahash_request *req) +{ + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src, + req->result, req->nbytes); + + return crypto_ahash_init(&rctx->ahash_fbk_req); +} + +static int starfive_hash_update(struct ahash_request *req) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src, + req->result, req->nbytes); + + return crypto_ahash_update(&rctx->ahash_fbk_req); +} + +static int starfive_hash_final(struct ahash_request *req) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src, + req->result, req->nbytes); + + return crypto_ahash_final(&rctx->ahash_fbk_req); +} + +static int starfive_hash_finup(struct ahash_request *req) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src, + req->result, req->nbytes); + + return crypto_ahash_finup(&rctx->ahash_fbk_req); +} + +static int starfive_hash_digest_fb(struct ahash_request *req) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, req->base.flags, + req->base.complete, req->base.data); + + ahash_request_set_crypt(&rctx->ahash_fbk_req, req->src, + req->result, req->nbytes); + + return crypto_ahash_digest(&rctx->ahash_fbk_req); +} + +static int starfive_hash_digest(struct ahash_request *req) +{ + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct starfive_cryp_dev *cryp =3D ctx->cryp; + + memset(rctx, 0, sizeof(struct starfive_cryp_request_ctx)); + + cryp->req.hreq =3D req; + rctx->total =3D req->nbytes; + rctx->in_sg =3D req->src; + rctx->blksize =3D crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); + rctx->digsize =3D crypto_ahash_digestsize(tfm); + rctx->in_sg_len =3D sg_nents_for_len(rctx->in_sg, rctx->total); + ctx->rctx =3D rctx; + + if (starfive_hash_check_aligned(rctx->in_sg, rctx->total, rctx->blksize)) + return starfive_hash_digest_fb(req); + + return crypto_transfer_hash_request_to_engine(cryp->engine, req); +} + +static int starfive_hash_export(struct ahash_request *req, void *out) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + return crypto_ahash_export(&rctx->ahash_fbk_req, out); +} + +static int starfive_hash_import(struct ahash_request *req, const void *in) +{ + struct starfive_cryp_request_ctx *rctx =3D ahash_request_ctx(req); + struct crypto_ahash *tfm =3D crypto_ahash_reqtfm(req); + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(tfm); + + ahash_request_set_tfm(&rctx->ahash_fbk_req, ctx->ahash_fbk); + ahash_request_set_callback(&rctx->ahash_fbk_req, + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP, + req->base.complete, req->base.data); + + return crypto_ahash_import(&rctx->ahash_fbk_req, in); +} + +static int starfive_hash_init_tfm(struct crypto_ahash *hash, + const char *alg_name, + unsigned int mode) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->cryp =3D starfive_cryp_find_dev(ctx); + + if (!ctx->cryp) + return -ENODEV; + + ctx->ahash_fbk =3D crypto_alloc_ahash(alg_name, 0, + CRYPTO_ALG_NEED_FALLBACK); + + if (IS_ERR(ctx->ahash_fbk)) + return dev_err_probe(ctx->cryp->dev, PTR_ERR(ctx->ahash_fbk), + "starfive_hash: Could not load fallback driver.\n"); + + crypto_ahash_set_statesize(hash, crypto_ahash_statesize(ctx->ahash_fbk)); + crypto_ahash_set_reqsize(hash, sizeof(struct starfive_cryp_request_ctx) + + crypto_ahash_reqsize(ctx->ahash_fbk)); + + ctx->keylen =3D 0; + ctx->hash_mode =3D mode; + + ctx->enginectx.op.do_one_request =3D starfive_hash_one_request; + ctx->enginectx.op.prepare_request =3D NULL; + ctx->enginectx.op.unprepare_request =3D NULL; + + return 0; +} + +static void starfive_hash_exit_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + crypto_free_ahash(ctx->ahash_fbk); + + ctx->ahash_fbk =3D NULL; + ctx->enginectx.op.do_one_request =3D NULL; + ctx->enginectx.op.prepare_request =3D NULL; + ctx->enginectx.op.unprepare_request =3D NULL; +} + +static int starfive_hash_long_setkey(struct starfive_cryp_ctx *ctx, + const u8 *key, unsigned int keylen, + const char *alg_name) +{ + struct crypto_wait wait; + struct ahash_request *req; + struct scatterlist sg; + struct crypto_ahash *ahash_tfm; + u8 *buf; + int ret; + + ahash_tfm =3D crypto_alloc_ahash(alg_name, 0, 0); + if (IS_ERR(ahash_tfm)) + return PTR_ERR(ahash_tfm); + + req =3D ahash_request_alloc(ahash_tfm, GFP_KERNEL); + if (!req) { + ret =3D -ENOMEM; + goto err_free_ahash; + } + + crypto_init_wait(&wait); + ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, + crypto_req_done, &wait); + crypto_ahash_clear_flags(ahash_tfm, ~0); + + buf =3D kzalloc(keylen + STARFIVE_HASH_BUFLEN, GFP_KERNEL); + if (!buf) { + ret =3D -ENOMEM; + goto err_free_req; + } + + memcpy(buf, key, keylen); + sg_init_one(&sg, buf, keylen); + ahash_request_set_crypt(req, &sg, ctx->key, keylen); + + ret =3D crypto_wait_req(crypto_ahash_digest(req), &wait); + + kfree(buf); +err_free_req: + ahash_request_free(req); +err_free_ahash: + crypto_free_ahash(ahash_tfm); + return ret; +} + +static int starfive_hash_setkey(struct crypto_ahash *hash, + const u8 *key, unsigned int keylen) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + unsigned int digestsize =3D crypto_ahash_digestsize(hash); + unsigned int blocksize =3D crypto_ahash_blocksize(hash); + const char *alg_name; + + crypto_ahash_setkey(ctx->ahash_fbk, key, keylen); + + if (keylen <=3D blocksize) { + memcpy(ctx->key, key, keylen); + ctx->keylen =3D keylen; + return 0; + } + + ctx->keylen =3D digestsize; + + switch (digestsize) { + case SHA224_DIGEST_SIZE: + alg_name =3D "sha224-starfive"; + break; + case SHA256_DIGEST_SIZE: + if (ctx->hash_mode =3D=3D STARFIVE_HASH_SM3) + alg_name =3D "sm3-starfive"; + else + alg_name =3D "sha256-starfive"; + break; + case SHA384_DIGEST_SIZE: + alg_name =3D "sha384-starfive"; + break; + case SHA512_DIGEST_SIZE: + alg_name =3D "sha512-starfive"; + break; + default: + return -EINVAL; + } + + return starfive_hash_long_setkey(ctx, key, keylen, alg_name); +} + +static int starfive_sha224_init_tfm(struct crypto_ahash *hash) +{ + return starfive_hash_init_tfm(hash, "sha224-generic", + STARFIVE_HASH_SHA224); +} + +static int starfive_sha256_init_tfm(struct crypto_ahash *hash) +{ + return starfive_hash_init_tfm(hash, "sha256-generic", + STARFIVE_HASH_SHA256); +} + +static int starfive_sha384_init_tfm(struct crypto_ahash *hash) +{ + return starfive_hash_init_tfm(hash, "sha384-generic", + STARFIVE_HASH_SHA384); +} + +static int starfive_sha512_init_tfm(struct crypto_ahash *hash) +{ + return starfive_hash_init_tfm(hash, "sha512-generic", + STARFIVE_HASH_SHA512); +} + +static int starfive_sm3_init_tfm(struct crypto_ahash *hash) +{ + return starfive_hash_init_tfm(hash, "sm3-generic", + STARFIVE_HASH_SM3); +} + +static int starfive_hmac_sha224_init_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->is_hmac =3D true; + + return starfive_hash_init_tfm(hash, "hmac(sha224-generic)", + STARFIVE_HASH_SHA224); +} + +static int starfive_hmac_sha256_init_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->is_hmac =3D true; + + return starfive_hash_init_tfm(hash, "hmac(sha256-generic)", + STARFIVE_HASH_SHA256); +} + +static int starfive_hmac_sha384_init_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->is_hmac =3D true; + + return starfive_hash_init_tfm(hash, "hmac(sha384-generic)", + STARFIVE_HASH_SHA384); +} + +static int starfive_hmac_sha512_init_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->is_hmac =3D true; + + return starfive_hash_init_tfm(hash, "hmac(sha512-generic)", + STARFIVE_HASH_SHA512); +} + +static int starfive_hmac_sm3_init_tfm(struct crypto_ahash *hash) +{ + struct starfive_cryp_ctx *ctx =3D crypto_ahash_ctx(hash); + + ctx->is_hmac =3D true; + + return starfive_hash_init_tfm(hash, "hmac(sm3-generic)", + STARFIVE_HASH_SM3); +} + +static struct ahash_alg algs_sha2_sm3[] =3D { +{ + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_sha224_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .halg =3D { + .digestsize =3D SHA224_DIGEST_SIZE, + .statesize =3D sizeof(struct sha256_state), + .base =3D { + .cra_name =3D "sha224", + .cra_driver_name =3D "sha224-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA224_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_hmac_sha224_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .setkey =3D starfive_hash_setkey, + .halg =3D { + .digestsize =3D SHA224_DIGEST_SIZE, + .statesize =3D sizeof(struct sha256_state), + .base =3D { + .cra_name =3D "hmac(sha224)", + .cra_driver_name =3D "sha224-hmac-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA224_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_sha256_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .halg =3D { + .digestsize =3D SHA256_DIGEST_SIZE, + .statesize =3D sizeof(struct sha256_state), + .base =3D { + .cra_name =3D "sha256", + .cra_driver_name =3D "sha256-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA256_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_hmac_sha256_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .setkey =3D starfive_hash_setkey, + .halg =3D { + .digestsize =3D SHA256_DIGEST_SIZE, + .statesize =3D sizeof(struct sha256_state), + .base =3D { + .cra_name =3D "hmac(sha256)", + .cra_driver_name =3D "sha256-hmac-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA256_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_sha384_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .halg =3D { + .digestsize =3D SHA384_DIGEST_SIZE, + .statesize =3D sizeof(struct sha512_state), + .base =3D { + .cra_name =3D "sha384", + .cra_driver_name =3D "sha384-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA384_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_hmac_sha384_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .setkey =3D starfive_hash_setkey, + .halg =3D { + .digestsize =3D SHA384_DIGEST_SIZE, + .statesize =3D sizeof(struct sha512_state), + .base =3D { + .cra_name =3D "hmac(sha384)", + .cra_driver_name =3D "sha384-hmac-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA384_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_sha512_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .halg =3D { + .digestsize =3D SHA512_DIGEST_SIZE, + .statesize =3D sizeof(struct sha512_state), + .base =3D { + .cra_name =3D "sha512", + .cra_driver_name =3D "sha512-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA512_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_hmac_sha512_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .setkey =3D starfive_hash_setkey, + .halg =3D { + .digestsize =3D SHA512_DIGEST_SIZE, + .statesize =3D sizeof(struct sha512_state), + .base =3D { + .cra_name =3D "hmac(sha512)", + .cra_driver_name =3D "sha512-hmac-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SHA512_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_sm3_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .halg =3D { + .digestsize =3D SM3_DIGEST_SIZE, + .statesize =3D sizeof(struct sm3_state), + .base =3D { + .cra_name =3D "sm3", + .cra_driver_name =3D "sm3-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SM3_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, { + .init =3D starfive_hash_init, + .update =3D starfive_hash_update, + .final =3D starfive_hash_final, + .finup =3D starfive_hash_finup, + .digest =3D starfive_hash_digest, + .export =3D starfive_hash_export, + .import =3D starfive_hash_import, + .init_tfm =3D starfive_hmac_sm3_init_tfm, + .exit_tfm =3D starfive_hash_exit_tfm, + .setkey =3D starfive_hash_setkey, + .halg =3D { + .digestsize =3D SM3_DIGEST_SIZE, + .statesize =3D sizeof(struct sm3_state), + .base =3D { + .cra_name =3D "hmac(sm3)", + .cra_driver_name =3D "sm3-hmac-starfive", + .cra_priority =3D 200, + .cra_flags =3D CRYPTO_ALG_ASYNC | + CRYPTO_ALG_TYPE_AHASH | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize =3D SM3_BLOCK_SIZE, + .cra_ctxsize =3D sizeof(struct starfive_cryp_ctx), + .cra_alignmask =3D 3, + .cra_module =3D THIS_MODULE, + } + } +}, +}; + +int starfive_hash_register_algs(void) +{ + return crypto_register_ahashes(algs_sha2_sm3, ARRAY_SIZE(algs_sha2_sm3)); +} + +void starfive_hash_unregister_algs(void) +{ + crypto_unregister_ahashes(algs_sha2_sm3, ARRAY_SIZE(algs_sha2_sm3)); +} --=20 2.25.1