From mboxrd@z Thu Jan 1 00:00:00 1970 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2620FC4332F for ; Fri, 25 Nov 2022 04:36:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 17CF18E0001; Thu, 24 Nov 2022 23:36:43 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 153B16B007B; Thu, 24 Nov 2022 23:36:43 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0420B8E0001; Thu, 24 Nov 2022 23:36:42 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id E70FD6B0075 for ; Thu, 24 Nov 2022 23:36:42 -0500 (EST) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id CC538A03B6 for ; Fri, 25 Nov 2022 04:36:42 +0000 (UTC) X-FDA: 80170703844.06.160B4B7 Received: from formenos.hmeau.com (helcar.hmeau.com [216.24.177.18]) by imf17.hostedemail.com (Postfix) with ESMTP id 416BA40012 for ; Fri, 25 Nov 2022 04:36:41 +0000 (UTC) Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.94.2 #2 (Debian)) id 1oyQS3-000djf-AS; Fri, 25 Nov 2022 12:36:36 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Fri, 25 Nov 2022 12:36:35 +0800 From: "Herbert Xu" Date: Fri, 25 Nov 2022 12:36:35 +0800 Subject: [v2 PATCH 4/9] crypto: hash - Add ctx helpers with DMA alignment References: To: Ard Biesheuvel , Will Deacon , Marc Zyngier , Arnd Bergmann , Greg Kroah-Hartman , Andrew Morton , Linus Torvalds , Linux Memory Management List , Linux ARM , Linux Kernel Mailing List , "David S. Miller" , Linux Crypto Mailing List Message-Id: ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1669351002; a=rsa-sha256; cv=none; b=wIuMN/Bht9/WseZ8MLnaeaMi1+fmHFSD8s0zVsaI+OoHuKpPpTnQ84Y0gKTry3e7y58tc5 jHxvWsMV3UWO31xQmoKj8I0nCf/eU1oUpN+uggCdBg6YCifH3LeNXxztnROY0R6zGpQvql OG2SkEA+jJqPWYW2uM3ulPG+wMcELNU= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1669351002; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references:references; bh=YAEKWnEWNYozD+cMbEn+XeUNTrN5wp9mIMIHTJBHBk8=; b=o8zp+0NbPawFIYj7KAnGjjAvhmSxxl8uZFeriXuf2HaMLpsNURGyGkhxoCj6XRYF74/78c QW8CuEM0+yo9fDoD9IpUrR/+tEaliLl3ko2/4gmO/a2eo3YorEry92LjobuO9aQ7a1Hnoe 2xt0Q4qo7QnTIbnvc5hvSm/zvlHi4Rc= X-Stat-Signature: upqgdh4tofk6xq1mbh4xgnsfynw8pg57 X-Rspamd-Queue-Id: 416BA40012 X-Rspam-User: Authentication-Results: imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au; dmarc=none X-Rspamd-Server: rspam10 X-HE-Tag: 1669351001-743250 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This patch adds helpers to access the ahash context structure and request context structure with an added alignment for DMA access. Signed-off-by: Herbert Xu --- include/crypto/internal/hash.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h index 25806141db59..a871b46a24da 100644 --- a/include/crypto/internal/hash.h +++ b/include/crypto/internal/hash.h @@ -134,6 +134,11 @@ static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); } +static inline void *crypto_ahash_ctx_dma(struct crypto_ahash *tfm) +{ + return crypto_tfm_ctx_dma(crypto_ahash_tfm(tfm)); +} + static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg) { return container_of(__crypto_hash_alg_common(alg), struct ahash_alg, @@ -146,6 +151,13 @@ static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, tfm->reqsize = reqsize; } +static inline void crypto_ahash_set_reqsize_dma(struct crypto_ahash *ahash, + unsigned int reqsize) +{ + reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1); + ahash->reqsize = reqsize; +} + static inline struct crypto_instance *ahash_crypto_instance( struct ahash_instance *inst) { @@ -169,6 +181,16 @@ static inline void *ahash_instance_ctx(struct ahash_instance *inst) return crypto_instance_ctx(ahash_crypto_instance(inst)); } +static inline void *ahash_request_ctx_dma(struct ahash_request *req) +{ + unsigned int align = crypto_dma_align(); + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + + return PTR_ALIGN(ahash_request_ctx(req), align); +} + static inline void ahash_request_complete(struct ahash_request *req, int err) { req->base.complete(&req->base, err);