diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/mediatek/mtk-aes.c | 75 | ||||
| -rw-r--r-- | drivers/crypto/mediatek/mtk-platform.h | 14 |
2 files changed, 53 insertions, 36 deletions
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c index b658cb9fb6a2..7e5a8e05b5b7 100644 --- a/drivers/crypto/mediatek/mtk-aes.c +++ b/drivers/crypto/mediatek/mtk-aes.c @@ -73,9 +73,10 @@ struct mtk_aes_reqctx { u64 mode; }; -struct mtk_aes_ctx { +struct mtk_aes_base_ctx { struct mtk_cryp *cryp; u32 keylen; + mtk_aes_fn start; struct mtk_aes_ct ct; dma_addr_t ct_dma; @@ -86,6 +87,10 @@ struct mtk_aes_ctx { u32 ct_size; }; +struct mtk_aes_ctx { + struct mtk_aes_base_ctx base; +}; + struct mtk_aes_drv { struct list_head dev_list; /* Device list lock */ @@ -108,7 +113,7 @@ static inline void mtk_aes_write(struct mtk_cryp *cryp, writel_relaxed(value, cryp->base + offset); } -static struct mtk_cryp *mtk_aes_find_dev(struct mtk_aes_ctx *ctx) +static struct mtk_cryp *mtk_aes_find_dev(struct mtk_aes_base_ctx *ctx) { struct mtk_cryp *cryp = NULL; struct mtk_cryp *tmp; @@ -170,7 +175,8 @@ static int mtk_aes_info_map(struct mtk_cryp *cryp, struct mtk_aes_rec *aes, size_t len) { - struct mtk_aes_ctx *ctx = aes->ctx; + struct ablkcipher_request *req = ablkcipher_request_cast(aes->areq); + struct mtk_aes_base_ctx *ctx = aes->ctx; ctx->ct_hdr = AES_CT_CTRL_HDR | cpu_to_le32(len); ctx->ct.cmd[0] = AES_CMD0 | cpu_to_le32(len); @@ -189,7 +195,7 @@ static int mtk_aes_info_map(struct mtk_cryp *cryp, ctx->tfm.ctrl[0] |= AES_TFM_192BITS; if (aes->flags & AES_FLAGS_CBC) { - const u32 *iv = (const u32 *)aes->req->info; + const u32 *iv = (const u32 *)req->info; u32 *iv_state = ctx->tfm.state + ctx->keylen; int i; @@ -299,11 +305,10 @@ static inline void mtk_aes_restore_sg(const struct mtk_aes_dma *dma) sg->length += dma->remainder; } -static int mtk_aes_map(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) +static int mtk_aes_map(struct mtk_cryp *cryp, struct mtk_aes_rec *aes, + struct scatterlist *src, struct scatterlist *dst, + size_t len) { - struct scatterlist *src = aes->req->src; - struct scatterlist *dst = aes->req->dst; - size_t len = aes->req->nbytes; size_t padlen = 0; bool src_aligned, dst_aligned; @@ -366,18 +371,17 @@ static int mtk_aes_map(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) } static int mtk_aes_handle_queue(struct mtk_cryp *cryp, u8 id, - struct ablkcipher_request *req) + struct crypto_async_request *new_areq) { struct mtk_aes_rec *aes = cryp->aes[id]; struct crypto_async_request *areq, *backlog; - struct mtk_aes_reqctx *rctx; - struct mtk_aes_ctx *ctx; + struct mtk_aes_base_ctx *ctx; unsigned long flags; - int err, ret = 0; + int ret = 0; spin_lock_irqsave(&aes->lock, flags); - if (req) - ret = ablkcipher_enqueue_request(&aes->queue, req); + if (new_areq) + ret = crypto_enqueue_request(&aes->queue, new_areq); if (aes->flags & AES_FLAGS_BUSY) { spin_unlock_irqrestore(&aes->lock, flags); return ret; @@ -394,16 +398,25 @@ static int mtk_aes_handle_queue(struct mtk_cryp *cryp, u8 id, if (backlog) backlog->complete(backlog, -EINPROGRESS); - req = ablkcipher_request_cast(areq); - ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req)); + ctx = crypto_tfm_ctx(areq->tfm); + + aes->areq = areq; + aes->ctx = ctx; + + return ctx->start(cryp, aes); +} + +static int mtk_aes_start(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) +{ + struct ablkcipher_request *req = ablkcipher_request_cast(aes->areq); + struct mtk_aes_reqctx *rctx = ablkcipher_request_ctx(req); + int err; + rctx = ablkcipher_request_ctx(req); rctx->mode &= AES_FLAGS_MODE_MSK; - /* Assign new request to device */ - aes->req = req; - aes->ctx = ctx; aes->flags = (aes->flags & ~AES_FLAGS_MODE_MSK) | rctx->mode; - err = mtk_aes_map(cryp, aes); + err = mtk_aes_map(cryp, aes, req->src, req->dst, req->nbytes); if (err) return err; @@ -412,7 +425,7 @@ static int mtk_aes_handle_queue(struct mtk_cryp *cryp, u8 id, static void mtk_aes_unmap(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) { - struct mtk_aes_ctx *ctx = aes->ctx; + struct mtk_aes_base_ctx *ctx = aes->ctx; dma_unmap_single(cryp->dev, ctx->ct_dma, sizeof(ctx->ct), DMA_TO_DEVICE); @@ -449,8 +462,7 @@ static inline void mtk_aes_complete(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) { aes->flags &= ~AES_FLAGS_BUSY; - - aes->req->base.complete(&aes->req->base, 0); + aes->areq->complete(aes->areq, 0); /* Handle new request */ mtk_aes_handle_queue(cryp, aes->id, NULL); @@ -460,7 +472,7 @@ static inline void mtk_aes_complete(struct mtk_cryp *cryp, static int mtk_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, u32 keylen) { - struct mtk_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm); + struct mtk_aes_base_ctx *ctx = crypto_ablkcipher_ctx(tfm); const u32 *key_tmp = (const u32 *)key; u32 *key_state = ctx->tfm.state; int i; @@ -482,14 +494,15 @@ static int mtk_aes_setkey(struct crypto_ablkcipher *tfm, static int mtk_aes_crypt(struct ablkcipher_request *req, u64 mode) { - struct mtk_aes_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); - struct mtk_aes_reqctx *rctx = ablkcipher_request_ctx(req); + struct mtk_aes_base_ctx *ctx; + struct mtk_aes_reqctx *rctx; + ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req)); + rctx = ablkcipher_request_ctx(req); rctx->mode = mode; return mtk_aes_handle_queue(ctx->cryp, - !(mode & AES_FLAGS_ENCRYPT), req); + !(mode & AES_FLAGS_ENCRYPT), &req->base); } static int mtk_ecb_encrypt(struct ablkcipher_request *req) @@ -517,14 +530,14 @@ static int mtk_aes_cra_init(struct crypto_tfm *tfm) struct mtk_aes_ctx *ctx = crypto_tfm_ctx(tfm); struct mtk_cryp *cryp = NULL; - tfm->crt_ablkcipher.reqsize = sizeof(struct mtk_aes_reqctx); - - cryp = mtk_aes_find_dev(ctx); + cryp = mtk_aes_find_dev(&ctx->base); if (!cryp) { pr_err("can't find crypto device\n"); return -ENODEV; } + tfm->crt_ablkcipher.reqsize = sizeof(struct mtk_aes_reqctx); + ctx->base.start = mtk_aes_start; return 0; } diff --git a/drivers/crypto/mediatek/mtk-platform.h b/drivers/crypto/mediatek/mtk-platform.h index 8c50b74788ff..9f5210c7f1db 100644 --- a/drivers/crypto/mediatek/mtk-platform.h +++ b/drivers/crypto/mediatek/mtk-platform.h @@ -115,12 +115,16 @@ struct mtk_aes_dma { u32 sg_len; }; -struct mtk_aes_ctx; +struct mtk_aes_base_ctx; +struct mtk_aes_rec; +struct mtk_cryp; + +typedef int (*mtk_aes_fn)(struct mtk_cryp *cryp, struct mtk_aes_rec *aes); /** * struct mtk_aes_rec - AES operation record * @queue: crypto request queue - * @req: pointer to ablkcipher request + * @req: pointer to async request * @task: the tasklet is use in AES interrupt * @ctx: pointer to current context * @src: the structure that holds source sg list info @@ -131,15 +135,15 @@ struct mtk_aes_ctx; * @buf: pointer to page buffer * @id: record identification * @flags: it's describing AES operation state - * @lock: the ablkcipher queue lock + * @lock: the async queue lock * * Structure used to record AES execution state. */ struct mtk_aes_rec { struct crypto_queue queue; - struct ablkcipher_request *req; + struct crypto_async_request *areq; struct tasklet_struct task; - struct mtk_aes_ctx *ctx; + struct mtk_aes_base_ctx *ctx; struct mtk_aes_dma src; struct mtk_aes_dma dst; |