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=-8.0 required=3.0 tests=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_SANE_1 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 81E2CC3A5A3 for ; Tue, 27 Aug 2019 09:45:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 568B82053B for ; Tue, 27 Aug 2019 09:45:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="pE4dxLaD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729585AbfH0Jpf (ORCPT ); Tue, 27 Aug 2019 05:45:35 -0400 Received: from pandora.armlinux.org.uk ([78.32.30.218]:36624 "EHLO pandora.armlinux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729232AbfH0Jpf (ORCPT ); Tue, 27 Aug 2019 05:45:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=db4eeeBDxOPeQgCnxVgK0cY8TBZGLFlCe0NsKNFsxDw=; b=pE4dxLaD4wDroPGs8tQLb6wF0 V+nS/JucfqBwoulqP0IfXx6iiAVhPBAlNdlPeLBPz65OMFeoMqdEOkAVzaLSf4kHnFIhnr70g6yE3 khUUxAHxfcda9QVcxqglAMS8K8PVBqsVS6QAqd/5+KzM/Kb5j9Rkd1oD1Tm+PcypsIS+D2YBXswKN 10c3adRsX0Si5HSR9OoZFhhjY/dJ3G3dyIdDYqE01O2glKpBQtH5vIPwho7cjB9q7nlgAs67xH0CL /U0G8hs5+Ie3mnYVJv9fabZP0c7XGDfMRW1F2KJLf+h1Vv6SeqI4hVts1ZkI/Y3A000xdMHIPGHKU GRJfQ/gwQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:38568) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1i2Y2V-0003bW-8m; Tue, 27 Aug 2019 10:45:23 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1i2Y2S-0005ek-8q; Tue, 27 Aug 2019 10:45:20 +0100 Date: Tue, 27 Aug 2019 10:45:20 +0100 From: Russell King - ARM Linux admin To: Peng Fan Cc: "sstabellini@kernel.org" , "julien.grall@arm.com" , "van.freenix@gmail.com" , "xen-devel@lists.xenproject.org" , dl-linux-imx , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 Message-ID: <20190827094520.GJ13294@shell.armlinux.org.uk> References: <20190709083729.11135-1-peng.fan@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org You need to find someone who is interested in Xen on 32-bit ARM, and who knows this code - and therefore what impact your change causes. That isn't me, sorry. On Tue, Aug 27, 2019 at 09:27:53AM +0000, Peng Fan wrote: > Ping again.. > > +Julien > > > Subject: RE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 > > > > Hi Russell, Stefano > > > > > Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 > > > > Any comments? > > > > > > > > arm64 shares some code under arch/arm/xen, including mm.c. > > > However ZONE_DMA is removed by commit > > > ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32"). > > > So to ARM64, need use __GFP_DMA32. > > > > > > Signed-off-by: Peng Fan > > > --- > > > arch/arm/xen/mm.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index > > > e1d44b903dfc..a95e76d18bf9 100644 > > > --- a/arch/arm/xen/mm.c > > > +++ b/arch/arm/xen/mm.c > > > @@ -27,7 +27,7 @@ unsigned long xen_get_swiotlb_free_pages(unsigned > > int > > > order) > > > > > > for_each_memblock(memory, reg) { > > > if (reg->base < (phys_addr_t)0xffffffff) { > > > - flags |= __GFP_DMA; > > > + flags |= __GFP_DMA | __GFP_DMA32; > > > break; > > > } > > > } > > > > Thanks, > > Peng. > > Thanks, > Peng. > > > > > > -- > > > 2.16.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up 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=-8.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 5D44FC3A5A3 for ; 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Tue, 27 Aug 2019 10:45:23 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1i2Y2S-0005ek-8q; Tue, 27 Aug 2019 10:45:20 +0100 Date: Tue, 27 Aug 2019 10:45:20 +0100 From: Russell King - ARM Linux admin To: Peng Fan Subject: Re: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 Message-ID: <20190827094520.GJ13294@shell.armlinux.org.uk> References: <20190709083729.11135-1-peng.fan@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190827_024532_438885_84BD2DFE X-CRM114-Status: GOOD ( 16.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "sstabellini@kernel.org" , "linux-kernel@vger.kernel.org" , "julien.grall@arm.com" , dl-linux-imx , "van.freenix@gmail.com" , "xen-devel@lists.xenproject.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org You need to find someone who is interested in Xen on 32-bit ARM, and who knows this code - and therefore what impact your change causes. That isn't me, sorry. On Tue, Aug 27, 2019 at 09:27:53AM +0000, Peng Fan wrote: > Ping again.. > > +Julien > > > Subject: RE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 > > > > Hi Russell, Stefano > > > > > Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 > > > > Any comments? > > > > > > > > arm64 shares some code under arch/arm/xen, including mm.c. > > > However ZONE_DMA is removed by commit > > > ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32"). > > > So to ARM64, need use __GFP_DMA32. > > > > > > Signed-off-by: Peng Fan > > > --- > > > arch/arm/xen/mm.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index > > > e1d44b903dfc..a95e76d18bf9 100644 > > > --- a/arch/arm/xen/mm.c > > > +++ b/arch/arm/xen/mm.c > > > @@ -27,7 +27,7 @@ unsigned long xen_get_swiotlb_free_pages(unsigned > > int > > > order) > > > > > > for_each_memblock(memory, reg) { > > > if (reg->base < (phys_addr_t)0xffffffff) { > > > - flags |= __GFP_DMA; > > > + flags |= __GFP_DMA | __GFP_DMA32; > > > break; > > > } > > > } > > > > Thanks, > > Peng. > > Thanks, > Peng. > > > > > > -- > > > 2.16.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-8.0 required=3.0 tests=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_SANE_1 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 52548C3A5A3 for ; 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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:38568) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1i2Y2V-0003bW-8m; Tue, 27 Aug 2019 10:45:23 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1i2Y2S-0005ek-8q; Tue, 27 Aug 2019 10:45:20 +0100 Date: Tue, 27 Aug 2019 10:45:20 +0100 From: Russell King - ARM Linux admin To: Peng Fan Message-ID: <20190827094520.GJ13294@shell.armlinux.org.uk> References: <20190709083729.11135-1-peng.fan@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [Xen-devel] [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "sstabellini@kernel.org" , "linux-kernel@vger.kernel.org" , "julien.grall@arm.com" , dl-linux-imx , "van.freenix@gmail.com" , "xen-devel@lists.xenproject.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; 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