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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 C5C4EC433E6 for ; Tue, 16 Mar 2021 08:16:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A28EC64FD1 for ; Tue, 16 Mar 2021 08:16:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234291AbhCPIQP (ORCPT ); Tue, 16 Mar 2021 04:16:15 -0400 Received: from verein.lst.de ([213.95.11.211]:59022 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234278AbhCPIP4 (ORCPT ); Tue, 16 Mar 2021 04:15:56 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 6154568C4E; Tue, 16 Mar 2021 09:15:54 +0100 (CET) Date: Tue, 16 Mar 2021 09:15:53 +0100 From: Christoph Hellwig To: Logan Gunthorpe Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Stephen Bates , Christoph Hellwig , Dan Williams , Jason Gunthorpe , Christian =?iso-8859-1?Q?K=F6nig?= , Ira Weiny , John Hubbard , Don Dutile , Matthew Wilcox , Daniel Vetter , Jakowski Andrzej , Minturn Dave B , Jason Ekstrand , Dave Hansen , Xiong Jianxin Subject: Re: [RFC PATCH v2 07/11] dma-mapping: Add flags to dma_map_ops to indicate PCI P2PDMA support Message-ID: <20210316081553.GC16595@lst.de> References: <20210311233142.7900-1-logang@deltatee.com> <20210311233142.7900-8-logang@deltatee.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210311233142.7900-8-logang@deltatee.com> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Mar 11, 2021 at 04:31:37PM -0700, Logan Gunthorpe wrote: > +int dma_pci_p2pdma_supported(struct device *dev) > +{ > + const struct dma_map_ops *ops = get_dma_ops(dev); > + > + return !ops || ops->flags & DMA_F_PCI_P2PDMA_SUPPORTED; > +} > +EXPORT_SYMBOL(dma_pci_p2pdma_supported); EXPORT_SYMBOL_GPL like all new DMA APIs. 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Tue, 16 Mar 2021 08:15:57 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c_tUY6sbIpIe for ; Tue, 16 Mar 2021 08:15:56 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.osuosl.org (Postfix) with ESMTPS id 9CA4983848 for ; Tue, 16 Mar 2021 08:15:56 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 6154568C4E; Tue, 16 Mar 2021 09:15:54 +0100 (CET) Date: Tue, 16 Mar 2021 09:15:53 +0100 From: Christoph Hellwig To: Logan Gunthorpe Subject: Re: [RFC PATCH v2 07/11] dma-mapping: Add flags to dma_map_ops to indicate PCI P2PDMA support Message-ID: <20210316081553.GC16595@lst.de> References: <20210311233142.7900-1-logang@deltatee.com> <20210311233142.7900-8-logang@deltatee.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210311233142.7900-8-logang@deltatee.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Minturn Dave B , Matthew Wilcox , Jason Gunthorpe , linux-pci@vger.kernel.org, Daniel Vetter , Dave Hansen , Ira Weiny , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, Stephen Bates , linux-block@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Christian =?iso-8859-1?Q?K=F6nig?= , Jason Ekstrand , John Hubbard , Dan Williams , Jakowski Andrzej , Christoph Hellwig , Xiong Jianxin 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" On Thu, Mar 11, 2021 at 04:31:37PM -0700, Logan Gunthorpe wrote: > +int dma_pci_p2pdma_supported(struct device *dev) > +{ > + const struct dma_map_ops *ops = get_dma_ops(dev); > + > + return !ops || ops->flags & DMA_F_PCI_P2PDMA_SUPPORTED; > +} > +EXPORT_SYMBOL(dma_pci_p2pdma_supported); EXPORT_SYMBOL_GPL like all new DMA APIs. _______________________________________________ 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 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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 1AE7DC4332B for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Thu, Mar 11, 2021 at 04:31:37PM -0700, Logan Gunthorpe wrote: > +int dma_pci_p2pdma_supported(struct device *dev) > +{ > + const struct dma_map_ops *ops = get_dma_ops(dev); > + > + return !ops || ops->flags & DMA_F_PCI_P2PDMA_SUPPORTED; > +} > +EXPORT_SYMBOL(dma_pci_p2pdma_supported); EXPORT_SYMBOL_GPL like all new DMA APIs. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme