From nobody Mon Oct 6 01:41:24 2025 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DB6823535E; Mon, 28 Jul 2025 06:08:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753682889; cv=none; b=dJz/LfQeO4EPf8GisVVPw+F8yMBA92Ud74AlRLVZAAM2r0IVM4rAHQnl8lbVpRwfFhi3B7zOBkMUuQuMwqa+FagpPGAyeVzaFIjPwXqK1L3c1lDC0VQa4UfhoET7Th+7j1N3HTjZnL2RMBfKAgcv8OtsflA/8ruoHh8DRby+1Y8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753682889; c=relaxed/simple; bh=B65GIV3its2xp1R6jcBGC4dXubBGAt9T//wtW+mLfK0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=r1S6b/EwYBT8+Gbwy0CLEtS5/J4/p4XxOU/YF6YBq8PMKGlpAIEDWSo9UpsjANYn0hrvQFmjnDCVvpcnj18fFBaUF9SXzqUvFuAa9vcMWDJ0yJi3Ex/YUAd9StCr29GIA8hTNPdzda2azh08lRiIuhNCXGpa+qSjsLI+tQe4dYM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=RjA39pra; arc=none smtp.client-ip=209.85.128.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RjA39pra" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-4560cdf235cso19478215e9.1; Sun, 27 Jul 2025 23:08:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1753682885; x=1754287685; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yPkkvVwxFYU+2Mr615PFvFXGtNmnnnpM8am4NYDPd7Y=; b=RjA39praTinLkV6vAB4b9TuNQZixcBudVDyNWMXSDDdw8gzAUSnM3arIB5R+MF6W0L OeLr9h0EnWb/MLRSLMelZWlliv7KC5fTwwoC2WViMDWZUIOn07x1XnwYjckj6AL/n1sz U47GSjWW7EVlnhwdJCI7hWaF6E21lYlcVnlWWAmtb7bZbnaWKHqJ62+VXhHPSv9UPpYR 4Ywq019AY4RhFSVHXKvYC3vcjmiSFncL25rLd1vh6lVhGqKmwIreL0A719qOSPnJGli5 S+SeI8SzjtExXEEhYTGr3kt/lO03CUvXK8cRJwKrYYwP43kyK9pyAnw2Nj6OiwW+wEWA 0KIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753682885; x=1754287685; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=yPkkvVwxFYU+2Mr615PFvFXGtNmnnnpM8am4NYDPd7Y=; b=QkAcV6rH7Ua8ggAJ4dgVELAHXQc6+e+uX19fJQSDs1plEoY8uy1yjmfJ7H9BGGzp4L cle5tXzOYsNyEQHinhewapIlSvmwhQdNzDRrZVqcHz2rpwru1TorqQje6+Q7+z6mEIxd AXqfnxpeyh/m3qL1NNYGme4TT86pYTyIsjj8YMFjFVafcMFT90oh3aSdSY7k8p8P1PxO VI3BGWZVRBQsdVOjSJSkMgwM6rG2sy3ZJRWpZ/UNgAJ8FaEZ3MsE4wdqwkNTI/jAPPaY 5BbPibA3A6XLe1UrLTNOEiCqdN5RCqyPMMcFQxhxfdfHN1/DSb2AtELWg4GVgftcr4WO BVTg== X-Forwarded-Encrypted: i=1; AJvYcCUbeoWGPoOE5wChrZZXElwyZHF8m8fT4o41+7I+byu0Hk4A3nFbadfSGMKC4vUtku+yJh7NIzmrzkvQnYMv@vger.kernel.org, AJvYcCXDCdh1FG9PWAecOqgKUWjGZqZNO6c2FvI3YHUuz8EEZS9adzagKb/0/ThRrbvgyVfE38iiMe5C33RIWRo=@vger.kernel.org X-Gm-Message-State: AOJu0YwmlcC15cNbXhfQW5deka2CdxOjKiwS1yTkp3nNRD10sQMZXRNo FSGIW/SNKygCC4h53QNdKVUc+UboHD7c+Z5cbpVdUEQNQNxHVBoCf3SV X-Gm-Gg: ASbGncthBYk3MtZqsW22SoA9wKWoUtlJbpFu3s0HOQK9oDEk/lnELigb+mXB/sKz1bo g5MnwBCEB/aIWq1Gg/B72+GrQKPGI9TjN+vebKB9HVf3/MEmd0Au1uQkaX+T7dXfnWYhWpu15Lz vem3wk5MvM3LbBNtHwtqqPFzbPRO+nFfVr5NBC5CX+X5IsZ9Je4Y3MzTeohJnMtQsquUINbXbmA xNlW0lubtdBP+ec4ZlCobPxiWbq+uJ8Ei8BbZMv+YSv7cq4mJ8iHETfG5+k2NpjuOFqCkKRFV30 frXH9/xgquQCM3AMy9aEgTkVPAgt+PUU9IPCJkQijmPJLY1mSNB9zSkaOetYGOUPR3qh8RvRxyz Q/BVz3OIbcUV6JSYP6Q0KY/WANwPq8fjNJQ== X-Google-Smtp-Source: AGHT+IGNHmqJIpVWF51P/BJHTnOzhLLnt+a4s0Kx90Y6aX/0rcrlD4mW+DwtiXOJokQk4AhF1Jdd9Q== X-Received: by 2002:a05:600c:674f:b0:455:ed48:144f with SMTP id 5b1f17b1804b1-4587630921cmr85129635e9.14.1753682884424; Sun, 27 Jul 2025 23:08:04 -0700 (PDT) Received: from ws-linux01 ([2a02:2f0e:ca0d:f700:1210:b727:adc8:716]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4587abe6ba0sm86195215e9.9.2025.07.27.23.08.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Jul 2025 23:08:04 -0700 (PDT) From: Ovidiu Panait To: clabbe.montjoie@gmail.com, herbert@gondor.apana.org.au, davem@davemloft.net, linux-crypto@vger.kernel.org Cc: wens@csie.org, jernej.skrabec@gmail.com, samuel@sholland.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Ovidiu Panait Subject: [PATCH 8/9] crypto: sun8i-ce - save hash buffers and dma info to request context Date: Mon, 28 Jul 2025 09:07:00 +0300 Message-ID: <20250728060701.1787607-9-ovidiu.panait.oss@gmail.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250728060701.1787607-1-ovidiu.panait.oss@gmail.com> References: <20250728060701.1787607-1-ovidiu.panait.oss@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Similar to sun8i-ce skcipher code, move all request-specific data to request context. This simplifies sun8i_ce_hash_run() and it eliminates the remaining kmalloc() calls from the digest path. It also makes it easier to split the monolithic sun8i_ce_hash_run() function in the next commit. Signed-off-by: Ovidiu Panait --- .../crypto/allwinner/sun8i-ce/sun8i-ce-hash.c | 56 +++++++------------ drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h | 17 ++++++ 2 files changed, 38 insertions(+), 35 deletions(-) diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c b/drivers/cr= ypto/allwinner/sun8i-ce/sun8i-ce-hash.c index df2acef9c679..e28100c07b86 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c @@ -328,12 +328,9 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, vo= id *breq) u32 common; u64 byte_count; __le32 *bf; - void *buf, *result; int j, i, todo; u64 bs; int digestsize; - dma_addr_t addr_res, addr_pad; - int ns =3D sg_nents_for_len(areq->src, areq->nbytes); =20 algt =3D container_of(alg, struct sun8i_ce_alg_template, alg.hash.base); ce =3D algt->ce; @@ -345,19 +342,7 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, vo= id *breq) if (digestsize =3D=3D SHA384_DIGEST_SIZE) digestsize =3D SHA512_DIGEST_SIZE; =20 - /* the padding could be up to two block. */ - buf =3D kcalloc(2, bs, GFP_KERNEL | GFP_DMA); - if (!buf) { - err =3D -ENOMEM; - goto err_out; - } - bf =3D (__le32 *)buf; - - result =3D kzalloc(digestsize, GFP_KERNEL | GFP_DMA); - if (!result) { - err =3D -ENOMEM; - goto err_free_buf; - } + bf =3D (__le32 *)rctx->pad; =20 flow =3D rctx->flow; chan =3D &ce->chanlist[flow]; @@ -378,11 +363,12 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, v= oid *breq) cet->t_sym_ctl =3D 0; cet->t_asym_ctl =3D 0; =20 - nr_sgs =3D dma_map_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE); + rctx->nr_sgs =3D sg_nents_for_len(areq->src, areq->nbytes); + nr_sgs =3D dma_map_sg(ce->dev, areq->src, rctx->nr_sgs, DMA_TO_DEVICE); if (nr_sgs <=3D 0 || nr_sgs > MAX_SG) { dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs); err =3D -EINVAL; - goto err_free_result; + goto err_out; } =20 len =3D areq->nbytes; @@ -397,10 +383,13 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, v= oid *breq) err =3D -EINVAL; goto err_unmap_src; } - addr_res =3D dma_map_single(ce->dev, result, digestsize, DMA_FROM_DEVICE); - cet->t_dst[0].addr =3D desc_addr_val_le32(ce, addr_res); - cet->t_dst[0].len =3D cpu_to_le32(digestsize / 4); - if (dma_mapping_error(ce->dev, addr_res)) { + + rctx->result_len =3D digestsize; + rctx->addr_res =3D dma_map_single(ce->dev, rctx->result, rctx->result_len, + DMA_FROM_DEVICE); + cet->t_dst[0].addr =3D desc_addr_val_le32(ce, rctx->addr_res); + cet->t_dst[0].len =3D cpu_to_le32(rctx->result_len / 4); + if (dma_mapping_error(ce->dev, rctx->addr_res)) { dev_err(ce->dev, "DMA map dest\n"); err =3D -EINVAL; goto err_unmap_src; @@ -428,10 +417,12 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, v= oid *breq) goto err_unmap_result; } =20 - addr_pad =3D dma_map_single(ce->dev, buf, j * 4, DMA_TO_DEVICE); - cet->t_src[i].addr =3D desc_addr_val_le32(ce, addr_pad); + rctx->pad_len =3D j * 4; + rctx->addr_pad =3D dma_map_single(ce->dev, rctx->pad, rctx->pad_len, + DMA_TO_DEVICE); + cet->t_src[i].addr =3D desc_addr_val_le32(ce, rctx->addr_pad); cet->t_src[i].len =3D cpu_to_le32(j); - if (dma_mapping_error(ce->dev, addr_pad)) { + if (dma_mapping_error(ce->dev, rctx->addr_pad)) { dev_err(ce->dev, "DMA error on padding SG\n"); err =3D -EINVAL; goto err_unmap_result; @@ -444,21 +435,16 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, v= oid *breq) =20 err =3D sun8i_ce_run_task(ce, flow, crypto_ahash_alg_name(tfm)); =20 - dma_unmap_single(ce->dev, addr_pad, j * 4, DMA_TO_DEVICE); + dma_unmap_single(ce->dev, rctx->addr_pad, rctx->pad_len, DMA_TO_DEVICE); =20 err_unmap_result: - dma_unmap_single(ce->dev, addr_res, digestsize, DMA_FROM_DEVICE); + dma_unmap_single(ce->dev, rctx->addr_res, rctx->result_len, + DMA_FROM_DEVICE); if (!err) - memcpy(areq->result, result, crypto_ahash_digestsize(tfm)); + memcpy(areq->result, rctx->result, crypto_ahash_digestsize(tfm)); =20 err_unmap_src: - dma_unmap_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE); - -err_free_result: - kfree(result); - -err_free_buf: - kfree(buf); + dma_unmap_sg(ce->dev, areq->src, rctx->nr_sgs, DMA_TO_DEVICE); =20 err_out: local_bh_disable(); diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h b/drivers/crypto/= allwinner/sun8i-ce/sun8i-ce.h index 0d46531c475c..90b955787d37 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h @@ -110,6 +110,9 @@ =20 #define MAXFLOW 4 =20 +#define CE_MAX_HASH_DIGEST_SIZE SHA512_DIGEST_SIZE +#define CE_MAX_HASH_BLOCK_SIZE SHA512_BLOCK_SIZE + /* * struct ce_clock - Describe clocks used by sun8i-ce * @name: Name of clock needed by this variant @@ -304,9 +307,23 @@ struct sun8i_ce_hash_tfm_ctx { * struct sun8i_ce_hash_reqctx - context for an ahash request * @fallback_req: pre-allocated fallback request * @flow: the flow to use for this request + * @nr_sgs: number of entries in the source scatterlist + * @result_len: result length in bytes + * @pad_len: padding length in bytes + * @addr_res: DMA address of the result buffer, returned by dma_map_single= () + * @addr_pad: DMA address of the padding buffer, returned by dma_map_singl= e() + * @result: per-request result buffer + * @pad: per-request padding buffer (up to 2 blocks) */ struct sun8i_ce_hash_reqctx { int flow; + int nr_sgs; + size_t result_len; + size_t pad_len; + dma_addr_t addr_res; + dma_addr_t addr_pad; + u8 result[CE_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; + u8 pad[2 * CE_MAX_HASH_BLOCK_SIZE] ____cacheline_aligned; struct ahash_request fallback_req; // keep at the end }; =20 --=20 2.50.0