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Signed-off-by: Alexey Romanov Reviewed-by: Neil Armstrong --- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 52 +++++++++------------ drivers/crypto/amlogic/amlogic-gxl.h | 6 +-- 2 files changed, 26 insertions(+), 32 deletions(-) diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c index 0d32d2e3ca3b..622e179320ff 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c +++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c @@ -59,7 +59,7 @@ static bool meson_cipher_need_fallback(struct skcipher_request *areq) static int meson_cipher_do_fallback(struct skcipher_request *areq) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(areq); int err; #ifdef CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG @@ -91,7 +91,6 @@ struct cipher_ctx { struct skcipher_request *areq; struct scatterlist *src_sg; struct scatterlist *dst_sg; - void *bkeyiv; unsigned int src_offset; unsigned int dst_offset; @@ -147,7 +146,7 @@ static void meson_setup_keyiv_descs(struct cipher_ctx *ctx) struct skcipher_alg *alg = crypto_skcipher_alg(tfm); struct meson_alg_template *algt = container_of(alg, struct meson_alg_template, alg.skcipher.base); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_dev *mc = op->mc; unsigned int ivsize = crypto_skcipher_ivsize(tfm); unsigned int blockmode = algt->blockmode; @@ -157,7 +156,7 @@ static void meson_setup_keyiv_descs(struct cipher_ctx *ctx) return; if (blockmode == DESC_OPMODE_CBC) { - memcpy(ctx->bkeyiv + AES_MAX_KEY_SIZE, ctx->areq->iv, ivsize); + memcpy(op->keyiv + AES_MAX_KEY_SIZE, ctx->areq->iv, ivsize); dma_sync_single_for_device(mc->dev, ctx->keyiv.addr, ctx->keyiv.len, DMA_TO_DEVICE); } @@ -179,7 +178,7 @@ static bool meson_setup_data_descs(struct cipher_ctx *ctx) { struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(ctx->areq); struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(ctx->areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct skcipher_alg *alg = crypto_skcipher_alg(tfm); struct meson_alg_template *algt = container_of(alg, struct meson_alg_template, @@ -222,7 +221,7 @@ static int meson_kick_hardware(struct cipher_ctx *ctx) { struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(ctx->areq); struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(ctx->areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct skcipher_alg *alg = crypto_skcipher_alg(tfm); struct meson_alg_template *algt = container_of(alg, struct meson_alg_template, @@ -294,7 +293,7 @@ static int meson_kick_hardware(struct cipher_ctx *ctx) static int meson_cipher(struct skcipher_request *areq) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(areq); struct meson_dev *mc = op->mc; struct skcipher_alg *alg = crypto_skcipher_alg(tfm); @@ -307,6 +306,7 @@ static int meson_cipher(struct skcipher_request *areq) .dst_sg = areq->dst, .cryptlen = areq->cryptlen, }; + unsigned int ivsize = crypto_skcipher_ivsize(tfm); int err; dev_dbg(mc->dev, "%s %s %u %x IV(%u) key=%u ctx.flow=%d\n", __func__, @@ -322,21 +322,21 @@ static int meson_cipher(struct skcipher_request *areq) mc->chanlist[rctx->flow].stat_req++; #endif - ctx.bkeyiv = kzalloc(48, GFP_KERNEL | GFP_DMA); - if (!ctx.bkeyiv) - return -ENOMEM; - - memcpy(ctx.bkeyiv, op->key, op->keylen); ctx.keyiv.len = op->keylen; if (ctx.keyiv.len == AES_KEYSIZE_192) ctx.keyiv.len = AES_MAX_KEY_SIZE; - ctx.keyiv.addr = dma_map_single(mc->dev, ctx.bkeyiv, ctx.keyiv.len, + if (algt->blockmode == DESC_OPMODE_CBC) { + memcpy(op->keyiv + AES_MAX_KEY_SIZE, areq->iv, ivsize); + ctx.keyiv.len = AES_MAX_KEY_SIZE + ivsize; + } + + ctx.keyiv.addr = dma_map_single(mc->dev, op->keyiv, ctx.keyiv.len, DMA_TO_DEVICE); err = dma_mapping_error(mc->dev, ctx.keyiv.addr); if (err) { dev_err(mc->dev, "Cannot DMA MAP KEY IV\n"); - goto free_keyiv; + return err; } err = meson_map_scatterlist(areq, mc); @@ -370,9 +370,6 @@ static int meson_cipher(struct skcipher_request *areq) unmap_keyiv: dma_unmap_single(mc->dev, ctx.keyiv.addr, ctx.keyiv.len, DMA_TO_DEVICE); -free_keyiv: - kfree_sensitive(ctx.bkeyiv); - return err; } @@ -392,7 +389,7 @@ int meson_handle_cipher_request(struct crypto_engine *engine, void *areq) static int meson_skdecrypt(struct skcipher_request *areq) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(areq); struct crypto_engine *engine; int e; @@ -410,7 +407,7 @@ static int meson_skdecrypt(struct skcipher_request *areq) static int meson_skencrypt(struct skcipher_request *areq) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_cipher_req_ctx *rctx = skcipher_request_ctx(areq); struct crypto_engine *engine; int e; @@ -427,7 +424,7 @@ static int meson_skencrypt(struct skcipher_request *areq) static int meson_cipher_init(struct crypto_tfm *tfm) { - struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx_dma(tfm); struct meson_alg_template *algt; const char *name = crypto_tfm_alg_name(tfm); struct crypto_skcipher *sktfm = __crypto_skcipher_cast(tfm); @@ -453,16 +450,15 @@ static int meson_cipher_init(struct crypto_tfm *tfm) static void meson_cipher_exit(struct crypto_tfm *tfm) { - struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx_dma(tfm); - kfree_sensitive(op->key); crypto_free_skcipher(op->fallback_tfm); } static int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int keylen) { - struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); struct meson_dev *mc = op->mc; switch (keylen) { @@ -479,11 +475,9 @@ static int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, dev_dbg(mc->dev, "ERROR: Invalid keylen %u\n", keylen); return -EINVAL; } - kfree_sensitive(op->key); + + memcpy(op->keyiv, key, keylen); op->keylen = keylen; - op->key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA); - if (!op->key) - return -ENOMEM; return crypto_skcipher_setkey(op->fallback_tfm, key, keylen); } @@ -501,7 +495,7 @@ static struct meson_alg_template algs[] = { .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | CRYPTO_ALG_NEED_FALLBACK, - .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx), + .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx) + CRYPTO_DMA_PADDING, .cra_module = THIS_MODULE, .cra_alignmask = 0xf, .cra_init = meson_cipher_init, @@ -530,7 +524,7 @@ static struct meson_alg_template algs[] = { .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | CRYPTO_ALG_NEED_FALLBACK, - .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx), + .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx) + CRYPTO_DMA_PADDING, .cra_module = THIS_MODULE, .cra_alignmask = 0xf, .cra_init = meson_cipher_init, diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h index f3455babb52a..dc5218064f99 100644 --- a/drivers/crypto/amlogic/amlogic-gxl.h +++ b/drivers/crypto/amlogic/amlogic-gxl.h @@ -127,15 +127,15 @@ struct meson_cipher_req_ctx { /* * struct meson_cipher_tfm_ctx - context for a skcipher TFM - * @key: pointer to key data + * @keyiv: key data * @keylen: len of the key * @keymode: The keymode(type and size of key) associated with this TFM * @mc: pointer to the private data of driver handling this TFM * @fallback_tfm: pointer to the fallback TFM */ struct meson_cipher_tfm_ctx { - u32 *key; - u32 keylen; + u8 keyiv[AES_MAX_KEY_SIZE + AES_BLOCK_SIZE] ____cacheline_aligned; + u32 keylen ____cacheline_aligned; u32 keymode; struct meson_dev *mc; struct crypto_skcipher *fallback_tfm;