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=-9.6 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_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 DF37EC433FF for ; Thu, 8 Aug 2019 16:01:00 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 B5E61217F4 for ; Thu, 8 Aug 2019 16:01:00 +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="OwgJF9RI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5E61217F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 16267114B; Thu, 8 Aug 2019 16:00:53 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 239D21088 for ; Thu, 8 Aug 2019 16:00:52 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 0C0868A6 for ; Thu, 8 Aug 2019 16:00:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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: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=n1yjt2X7Jq9I74UVesO3pDwFX28IMKr9d3wsrGu9KqY=; b=OwgJF9RIfE/qwoQqR7l8QYGiHB bvtV/37DqJIMUHgOulrheG0U8WgeaRxU8A0YhRjwc2L5EZG/4DqstAFRXp8HGdigFTZhK5YXfmfGt coPNAmaebVbBbCYlrzrEwVQgyPpWJZzK/LoWey11hO1GSSfv25yrYY8Z0pgbbt7GlOhBeuloKEOr2 sHJd+APjVNPjjdd5aPQ7yL6A+fIcWuioPHUa46TWdyoBesuGcDHJC5GtLcBgOq+BR5/W3te0GbpbX VJQo7Hmi5mAVnw+3z5LnxVbgKzdDo3xnkI8MincpwCcJzOPKhwWYvODcSKcY9dhszhfv1xL9nQzTB g3NI+Isg==; Received: from [195.167.85.94] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hvkqO-0006pM-U7; Thu, 08 Aug 2019 16:00:49 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org, Marek Szyprowski Subject: [PATCH 6/8] arm-nommu: call dma_mmap_from_dev_coherent directly Date: Thu, 8 Aug 2019 19:00:03 +0300 Message-Id: <20190808160005.10325-7-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190808160005.10325-1-hch@lst.de> References: <20190808160005.10325-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Cc: linux-xtensa@linux-xtensa.org, Michal Simek , Vladimir Murzin , linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, Takashi Iwai , linuxppc-dev@lists.ozlabs.org, Helge Deller , x86@kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, Robin Murphy , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Ther is no need to go through dma_common_mmap for the arm-nommu dma mmap implementation as the only possible memory not handled above could be that from the per-device coherent pool. Signed-off-by: Christoph Hellwig --- arch/arm/mm/dma-mapping-nommu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c index 52b82559d99b..db9247898300 100644 --- a/arch/arm/mm/dma-mapping-nommu.c +++ b/arch/arm/mm/dma-mapping-nommu.c @@ -68,8 +68,9 @@ static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma, if (dma_mmap_from_global_coherent(vma, cpu_addr, size, &ret)) return ret; - - return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size, attrs); + if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret)) + return ret; + return -ENXIO; } -- 2.20.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu