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 E71DDC4332F for ; Fri, 25 Nov 2022 04:36:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7E4CC6B0071; Thu, 24 Nov 2022 23:36:51 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 794E16B007B; Thu, 24 Nov 2022 23:36:51 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 684D28E0005; Thu, 24 Nov 2022 23:36:51 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 5380C8E0002 for ; Thu, 24 Nov 2022 23:36:51 -0500 (EST) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 1564F80899 for ; Fri, 25 Nov 2022 04:36:51 +0000 (UTC) X-FDA: 80170704222.20.C34CCE0 Received: from formenos.hmeau.com (helcar.hmeau.com [216.24.177.18]) by imf11.hostedemail.com (Postfix) with ESMTP id 625A64000A for ; Fri, 25 Nov 2022 04:36:50 +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 1oyQSB-000dkk-LW; Fri, 25 Nov 2022 12:36:44 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Fri, 25 Nov 2022 12:36:43 +0800 From: "Herbert Xu" Date: Fri, 25 Nov 2022 12:36:43 +0800 Subject: [v2 PATCH 8/9] crypto: kpp - 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-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1669351010; 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=bpHlNYxZvm9whxIrcVZ39H+7QS5Xt9rGAmz9F1hiPS4=; b=0rDTwPTcKOkvlxkJllIIAh8dAVKhPKt5Ozrw8PZPLbvS/qINqpCFwyTNaJ1fy82FhezK5t ThtnVdaA88UV8xmkHS1A4tcUhTLwZkBe1xEyLmcRfQ+iOQfzh8OTj9zPfXgWj0OOSzIy0Y BJTMal3Q/IeuCf1LrTtprCSluGsUqpQ= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf11.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1669351010; a=rsa-sha256; cv=none; b=uK7D9U37M164O1VzVyj1oIGZtWFrkaLwbljoR1f5yG4qxR43rD0REeExUvZveRBl/FPbjA 6nRfKGT0VBE+iAfKLbY4PM+4deaxec0vSQHSWj+E558V9Nq2N0fGWs+eFdqjXi1wTL5iSd mkXE6ve7Kjn9vAltFdCQzKT5qALQWwk= X-Rspam-User: Authentication-Results: imf11.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf11.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au X-Stat-Signature: af4kakemgykrwta3jmx7nnihpbu95gua X-Rspamd-Queue-Id: 625A64000A X-Rspamd-Server: rspam08 X-HE-Tag: 1669351010-607706 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 kpp context structure and request context structure with an added alignment for DMA access. Signed-off-by: Herbert Xu --- include/crypto/internal/kpp.h | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/include/crypto/internal/kpp.h b/include/crypto/internal/kpp.h index 167662407e36..3c9726e89f53 100644 --- a/include/crypto/internal/kpp.h +++ b/include/crypto/internal/kpp.h @@ -50,15 +50,37 @@ static inline void *kpp_request_ctx(struct kpp_request *req) return req->__ctx; } +static inline void *kpp_request_ctx_dma(struct kpp_request *req) +{ + unsigned int align = crypto_dma_align(); + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + + return PTR_ALIGN(kpp_request_ctx(req), align); +} + static inline void kpp_set_reqsize(struct crypto_kpp *kpp, unsigned int reqsize) { kpp->reqsize = reqsize; } +static inline void kpp_set_reqsize_dma(struct crypto_kpp *kpp, + unsigned int reqsize) +{ + reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1); + kpp->reqsize = reqsize; +} + static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm) { - return tfm->base.__crt_ctx; + return crypto_tfm_ctx(&tfm->base); +} + +static inline void *kpp_tfm_ctx_dma(struct crypto_kpp *tfm) +{ + return crypto_tfm_ctx_dma(&tfm->base); } static inline void kpp_request_complete(struct kpp_request *req, int err)