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=-12.5 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 C973FC433E1 for ; Wed, 19 Aug 2020 06:56:20 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 9E048207FF for ; Wed, 19 Aug 2020 06:56:20 +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="UdYV4uHp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E048207FF 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 localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 8AE5E85C9E; Wed, 19 Aug 2020 06:56:20 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tlaRFQ2qmyYs; Wed, 19 Aug 2020 06:56:19 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id E0BDC86ACB; Wed, 19 Aug 2020 06:56:18 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id BC918C0891; Wed, 19 Aug 2020 06:56:18 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id CAC14C0051 for ; Wed, 19 Aug 2020 06:56:17 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id BA1A585C9E for ; Wed, 19 Aug 2020 06:56:17 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0-KJcuSSF0Z8 for ; Wed, 19 Aug 2020 06:56:16 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by whitealder.osuosl.org (Postfix) with ESMTPS id 922248575A for ; Wed, 19 Aug 2020 06:56:16 +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=5I0Wekw7PGkNV3dZaIEsA8c8Eplwzl97xo8vYosQxdI=; b=UdYV4uHpyw9x3F5rwAWsVUPFE0 Hqm02Lgcb3b7szXHtRYFh2Q2mQ0XgXJIRXZnNarHY8BTFPY/yfILYo9XBcRi7QMB28ipLhHbeYlLZ mACjmpKK8MPjiLf3dQYi0vBMkZJd/+MdUBQ3P1z7bbLGarn+eG74rMpDjApvZcefIfvlujyIZSqxu wHrDyEJGotoW7dL28Oiu4mTNTADO4SZxq3ID/xa3uKrXpchLC5U0otmEnB0C95mcVGd+TWrgeSorS YoshIRrHigr4PRqKUustXCWc2qvmN6xs6AZEOX38KVFTfpoTISa6SdfuLtcuYFCOYm/EHyRiUeiPJ oIt3VQVw==; Received: from [2001:4bb8:198:f3b2:86b6:2277:f429:37a1] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k8I0x-0008LJ-Vp; Wed, 19 Aug 2020 06:56:04 +0000 From: Christoph Hellwig To: Mauro Carvalho Chehab , Thomas Bogendoerfer , "James E.J. Bottomley" , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Ben Skeggs , Pawel Osciak , Marek Szyprowski , Matt Porter , iommu@lists.linux-foundation.org Subject: [PATCH 04/28] net/au1000-eth: stop using DMA_ATTR_NON_CONSISTENT Date: Wed, 19 Aug 2020 08:55:31 +0200 Message-Id: <20200819065555.1802761-5-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200819065555.1802761-1-hch@lst.de> References: <20200819065555.1802761-1-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: Tom Lendacky , alsa-devel@alsa-project.org, linux-samsung-soc@vger.kernel.org, linux-ia64@vger.kernel.org, linux-scsi@vger.kernel.org, linux-parisc@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org 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" The au1000-eth driver contains none of the manual cache synchronization required for using DMA_ATTR_NON_CONSISTENT. From what I can tell it can be used on both dma coherent and non-coherent DMA platforms, but I suspect it has been buggy on the non-coherent platforms all along. Signed-off-by: Christoph Hellwig --- drivers/net/ethernet/amd/au1000_eth.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c index 75dbd221dc594b..19e195420e2434 100644 --- a/drivers/net/ethernet/amd/au1000_eth.c +++ b/drivers/net/ethernet/amd/au1000_eth.c @@ -1131,10 +1131,9 @@ static int au1000_probe(struct platform_device *pdev) /* Allocate the data buffers * Snooping works fine with eth on all au1xxx */ - aup->vaddr = (u32)dma_alloc_attrs(&pdev->dev, MAX_BUF_SIZE * + aup->vaddr = (u32)dma_alloc_coherent(&pdev->dev, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), - &aup->dma_addr, 0, - DMA_ATTR_NON_CONSISTENT); + &aup->dma_addr, 0); if (!aup->vaddr) { dev_err(&pdev->dev, "failed to allocate data buffers\n"); err = -ENOMEM; @@ -1310,9 +1309,8 @@ static int au1000_probe(struct platform_device *pdev) err_remap2: iounmap(aup->mac); err_remap1: - dma_free_attrs(&pdev->dev, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), - (void *)aup->vaddr, aup->dma_addr, - DMA_ATTR_NON_CONSISTENT); + dma_free_coherent(&pdev->dev, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), + (void *)aup->vaddr, aup->dma_addr); err_vaddr: free_netdev(dev); err_alloc: @@ -1344,9 +1342,8 @@ static int au1000_remove(struct platform_device *pdev) if (aup->tx_db_inuse[i]) au1000_ReleaseDB(aup, aup->tx_db_inuse[i]); - dma_free_attrs(&pdev->dev, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), - (void *)aup->vaddr, aup->dma_addr, - DMA_ATTR_NON_CONSISTENT); + dma_free_coherent(&pdev->dev, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), + (void *)aup->vaddr, aup->dma_addr); iounmap(aup->macdma); iounmap(aup->mac); -- 2.28.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu