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 X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0669C43461 for ; Tue, 8 Sep 2020 16:51:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 853B02080A for ; Tue, 8 Sep 2020 16:51:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="c2ZnrSe2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732011AbgIHQu7 (ORCPT ); Tue, 8 Sep 2020 12:50:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34166 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732034AbgIHQsj (ORCPT ); Tue, 8 Sep 2020 12:48:39 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 694DDC061796; Tue, 8 Sep 2020 09:48:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=al0ag1j1mhlnjNfR7j4kD7CUfxxYaZBiv73JAkyo30Q=; b=c2ZnrSe2X6va8zAfelp2V/exIM hwcLDaVgsRkmxTApT2R4WKPdHTn4Y/Cx6BoSPvMrqulcKzxOqOEroLmrZCoG5GV619Ou5t0p24Ap5 FzWUe07Ff/CQ2GwhhWYzbSioLNbsUHlkM+NxA0akLBhY/BPykuDhR3iy9VNWZ4DPsNKXhPPM6kGWj 12Pr6pX8v5s9wMnaYEmMRivjZy6GdSa40AE5ko0P7gIC4cf3pBnGb40zeSHSUESoil3jeaXYAKhev I4/VinsIgOcWeaROvSrTabkj0eCQ3IgG8kUVFdsLNt14IFi+2f0P+OHbK/sRYXOpxGeKeH8tLRr5v HR5eHbvA==; Received: from [2001:4bb8:184:af1:3dc3:9c83:fc6c:e0f] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kFgmt-0001Sf-Qe; Tue, 08 Sep 2020 16:48:08 +0000 From: Christoph Hellwig To: Tony Luck , Fenghua Yu , Thomas Bogendoerfer , iommu@lists.linux-foundation.org Cc: Tomasz Figa , Joerg Roedel , Robin Murphy , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org Subject: [PATCH 07/12] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages Date: Tue, 8 Sep 2020 18:47:53 +0200 Message-Id: <20200908164758.3177341-8-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200908164758.3177341-1-hch@lst.de> References: <20200908164758.3177341-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move the detailed gfp_t setup from __dma_direct_alloc_pages into the caller to clean things up a little. Signed-off-by: Christoph Hellwig --- kernel/dma/direct.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1d564bea58571b..12e9f5f75dfe4b 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -108,7 +108,7 @@ static inline bool dma_should_free_from_pool(struct device *dev, } static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, - gfp_t gfp, unsigned long attrs) + gfp_t gfp) { int node = dev_to_node(dev); struct page *page = NULL; @@ -116,11 +116,6 @@ static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, WARN_ON_ONCE(!PAGE_ALIGNED(size)); - if (attrs & DMA_ATTR_NO_WARN) - gfp |= __GFP_NOWARN; - - /* we always manually zero the memory once we are done: */ - gfp &= ~__GFP_ZERO; gfp |= dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask, &phys_limit); page = dma_alloc_contiguous(dev, size, gfp); @@ -164,6 +159,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, return arch_dma_alloc(dev, size, dma_handle, gfp, attrs); size = PAGE_ALIGN(size); + if (attrs & DMA_ATTR_NO_WARN) + gfp |= __GFP_NOWARN; if (dma_should_alloc_from_pool(dev, gfp, attrs)) { u64 phys_mask; @@ -177,7 +174,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, goto done; } - page = __dma_direct_alloc_pages(dev, size, gfp, attrs); + /* we always manually zero the memory once we are done */ + page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO); if (!page) return NULL; -- 2.28.0 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 X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8EB1CC433E2 for ; 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Tue, 8 Sep 2020 16:48:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=al0ag1j1mhlnjNfR7j4kD7CUfxxYaZBiv73JAkyo30Q=; b=c2ZnrSe2X6va8zAfelp2V/exIM hwcLDaVgsRkmxTApT2R4WKPdHTn4Y/Cx6BoSPvMrqulcKzxOqOEroLmrZCoG5GV619Ou5t0p24Ap5 FzWUe07Ff/CQ2GwhhWYzbSioLNbsUHlkM+NxA0akLBhY/BPykuDhR3iy9VNWZ4DPsNKXhPPM6kGWj 12Pr6pX8v5s9wMnaYEmMRivjZy6GdSa40AE5ko0P7gIC4cf3pBnGb40zeSHSUESoil3jeaXYAKhev I4/VinsIgOcWeaROvSrTabkj0eCQ3IgG8kUVFdsLNt14IFi+2f0P+OHbK/sRYXOpxGeKeH8tLRr5v HR5eHbvA==; Received: from [2001:4bb8:184:af1:3dc3:9c83:fc6c:e0f] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kFgmt-0001Sf-Qe; Tue, 08 Sep 2020 16:48:08 +0000 From: Christoph Hellwig To: Tony Luck , Fenghua Yu , Thomas Bogendoerfer , iommu@lists.linux-foundation.org Subject: [PATCH 07/12] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages Date: Tue, 8 Sep 2020 18:47:53 +0200 Message-Id: <20200908164758.3177341-8-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200908164758.3177341-1-hch@lst.de> References: <20200908164758.3177341-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Cc: linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, Robin Murphy X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Move the detailed gfp_t setup from __dma_direct_alloc_pages into the caller to clean things up a little. Signed-off-by: Christoph Hellwig --- kernel/dma/direct.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1d564bea58571b..12e9f5f75dfe4b 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -108,7 +108,7 @@ static inline bool dma_should_free_from_pool(struct device *dev, } static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, - gfp_t gfp, unsigned long attrs) + gfp_t gfp) { int node = dev_to_node(dev); struct page *page = NULL; @@ -116,11 +116,6 @@ static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, WARN_ON_ONCE(!PAGE_ALIGNED(size)); - if (attrs & DMA_ATTR_NO_WARN) - gfp |= __GFP_NOWARN; - - /* we always manually zero the memory once we are done: */ - gfp &= ~__GFP_ZERO; gfp |= dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask, &phys_limit); page = dma_alloc_contiguous(dev, size, gfp); @@ -164,6 +159,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, return arch_dma_alloc(dev, size, dma_handle, gfp, attrs); size = PAGE_ALIGN(size); + if (attrs & DMA_ATTR_NO_WARN) + gfp |= __GFP_NOWARN; if (dma_should_alloc_from_pool(dev, gfp, attrs)) { u64 phys_mask; @@ -177,7 +174,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, goto done; } - page = __dma_direct_alloc_pages(dev, size, gfp, attrs); + /* we always manually zero the memory once we are done */ + page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO); if (!page) return NULL; -- 2.28.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Tue, 08 Sep 2020 16:47:53 +0000 Subject: [PATCH 07/12] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages Message-Id: <20200908164758.3177341-8-hch@lst.de> List-Id: References: <20200908164758.3177341-1-hch@lst.de> In-Reply-To: <20200908164758.3177341-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Tony Luck , Fenghua Yu , Thomas Bogendoerfer , iommu@lists.linux-foundation.org Cc: Tomasz Figa , Joerg Roedel , Robin Murphy , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org Move the detailed gfp_t setup from __dma_direct_alloc_pages into the caller to clean things up a little. Signed-off-by: Christoph Hellwig --- kernel/dma/direct.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 1d564bea58571b..12e9f5f75dfe4b 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -108,7 +108,7 @@ static inline bool dma_should_free_from_pool(struct device *dev, } static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, - gfp_t gfp, unsigned long attrs) + gfp_t gfp) { int node = dev_to_node(dev); struct page *page = NULL; @@ -116,11 +116,6 @@ static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, WARN_ON_ONCE(!PAGE_ALIGNED(size)); - if (attrs & DMA_ATTR_NO_WARN) - gfp |= __GFP_NOWARN; - - /* we always manually zero the memory once we are done: */ - gfp &= ~__GFP_ZERO; gfp |= dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask, &phys_limit); page = dma_alloc_contiguous(dev, size, gfp); @@ -164,6 +159,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, return arch_dma_alloc(dev, size, dma_handle, gfp, attrs); size = PAGE_ALIGN(size); + if (attrs & DMA_ATTR_NO_WARN) + gfp |= __GFP_NOWARN; if (dma_should_alloc_from_pool(dev, gfp, attrs)) { u64 phys_mask; @@ -177,7 +174,8 @@ void *dma_direct_alloc(struct device *dev, size_t size, goto done; } - page = __dma_direct_alloc_pages(dev, size, gfp, attrs); + /* we always manually zero the memory once we are done */ + page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO); if (!page) return NULL; -- 2.28.0