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=-9.8 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,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 91E19C433E0 for ; Tue, 26 May 2020 19:15:32 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5998620776 for ; Tue, 26 May 2020 19:15:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VEPv1nVq"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="iAQGoOHf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5998620776 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=8m+459fAV5RMww9ASQBffFu8T7zK1fuzuM3RANgZOvw=; b=VEPv1nVqM8n/UkMYYYMMm9kX9H lYskG0//GClh9cdrcKfaxbzrEsLRv1j7Wr89r4rFEgqK41Jjs+G3a0FRB+JoMHlr2As7Qa2jPO35L R8HUimVyJ2/KLMAWtZuPGsv3/ZnNfTEK8uk8bvgMEFEvCQMVx3+dwfgjq6SGxgo16YlSwGeyllWru 7acawGXuwRHVvM1FpZk8i6LMct/O+wOtH6aeffLpF7p6ZrK5IGB8Nv1TukYdzxNyCa06g/fusEixp pDxF+BpCRklf9e2xTJaaNx2bnDgbRmMooYErRVSP93Cbg6maBpQiYHhZTPDapqn05gcJA9x1EntWm 3enZA1Fg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdf2x-0006yY-GZ; Tue, 26 May 2020 19:15:31 +0000 Received: from rnd-relay.smtp.broadcom.com ([192.19.229.170]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdf1C-0003Ja-EV for linux-arm-kernel@lists.infradead.org; Tue, 26 May 2020 19:13:43 +0000 Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.242.48]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id 43D5430D64C; Tue, 26 May 2020 12:13:41 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.10.3 rnd-relay.smtp.broadcom.com 43D5430D64C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1590520421; bh=AriK1NG87ZP5xbZZLs45I9ity+OqGcVezhDeyT3A91M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iAQGoOHfVWnQdrqOFiyoMOh6ZwAmNICLhoLV9Io/Vy4j+GREamlBNlyFf9ZtNT4fK c/MYDrOPasRa+Aje2nM3fHOpKsHdU757VFLNnGuObTx8Ibk/nLEMwIEWw6jwELn6yt pYiexCaP0qjxIqm01yifk+r5uootcBD3LZ6s/A6U= Received: from stbsrv-and-01.and.broadcom.net (stbsrv-and-01.and.broadcom.net [10.28.16.211]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id E1083140069; Tue, 26 May 2020 12:13:39 -0700 (PDT) From: Jim Quinlan To: linux-pci@vger.kernel.org, Christoph Hellwig , Nicolas Saenz Julienne , bcm-kernel-feedback-list@broadcom.com, james.quinlan@broadcom.com Subject: [PATCH v2 10/14] arm: dma-mapping: Invoke dma offset func if needed Date: Tue, 26 May 2020 15:12:49 -0400 Message-Id: <20200526191303.1492-11-james.quinlan@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526191303.1492-1-james.quinlan@broadcom.com> References: <20200526191303.1492-1-james.quinlan@broadcom.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200526_121342_519727_DEEC958A X-CRM114-Status: GOOD ( 10.19 ) 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: Ulf Hansson , Stefano Stabellini , Russell King , open list , Julien Grall , "moderated list:ARM PORT" MIME-Version: 1.0 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 Just like dma_pfn_offset, another offset is added to the dma/phys translation if there happen to be multiple regions that have different mapping offsets. Signed-off-by: Jim Quinlan --- arch/arm/include/asm/dma-mapping.h | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index bdd80ddbca34..811389b4fb29 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -35,8 +35,12 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) #ifndef __arch_pfn_to_dma static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn) { - if (dev) + if (dev) { + /* This should compile out if !CONFIG_DMA_PFN_OFFSET_MAP */ + pfn -= dma_pfn_offset_from_phys_addr(dev, PFN_PHYS(pfn)); + pfn -= dev->dma_pfn_offset; + } return (dma_addr_t)__pfn_to_bus(pfn); } @@ -44,9 +48,12 @@ static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr) { unsigned long pfn = __bus_to_pfn(addr); - if (dev) - pfn += dev->dma_pfn_offset; + if (dev) { + /* This should compile out if !CONFIG_DMA_PFN_OFFSET_MAP */ + pfn += dma_pfn_offset_from_dma_addr(dev, addr); + pfn += dev->dma_pfn_offset; + } return pfn; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel