From patchwork Thu Dec 18 17:20:12 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Catalin Marinas X-Patchwork-Id: 5515491 Return-Path: X-Original-To: patchwork-dmaengine@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 49D09BEEA8 for ; Thu, 18 Dec 2014 17:20:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6AC19208C9 for ; Thu, 18 Dec 2014 17:20:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 639DF208EF for ; Thu, 18 Dec 2014 17:20:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751411AbaLRRUZ (ORCPT ); Thu, 18 Dec 2014 12:20:25 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:51763 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751138AbaLRRUX (ORCPT ); Thu, 18 Dec 2014 12:20:23 -0500 Received: from foss-smtp-na-1.foss.arm.com (unknown [10.80.61.8]) by foss-mx-na.foss.arm.com (Postfix) with ESMTP id 28FA5CE; Thu, 18 Dec 2014 11:20:19 -0600 (CST) Received: from collaborate-mta1.arm.com (highbank-bc01-b06.austin.arm.com [10.112.81.134]) by foss-smtp-na-1.foss.arm.com (Postfix) with ESMTP id CEEFB5FAD7; Thu, 18 Dec 2014 11:20:15 -0600 (CST) Received: from e104818-lin.cambridge.arm.com (e104818-lin.cambridge.arm.com [10.1.203.148]) by collaborate-mta1.arm.com (Postfix) with ESMTPS id 3924E13F841; Thu, 18 Dec 2014 11:20:14 -0600 (CST) Date: Thu, 18 Dec 2014 17:20:12 +0000 From: Catalin Marinas To: Arnd Bergmann Cc: "linux-arm-kernel@lists.infradead.org" , Murali Karicheri , "vinod.koul@intel.com" , "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "dmaengine@vger.kernel.org" , "linux-pci@vger.kernel.org" , "bhelgaas@google.com" , Will Deacon Subject: Re: [RFC PATCH 1/2] common: dma-mapping: introduce dma_get_parent_cfg() helper Message-ID: <20141218172011.GB20963@e104818-lin.cambridge.arm.com> References: <1418839344-14393-1-git-send-email-m-karicheri2@ti.com> <1949667.gMcOLHe7Sk@wuerfel> <549210BB.9080603@ti.com> <2935351.ba8Au9y4fE@wuerfel> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2935351.ba8Au9y4fE@wuerfel> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On Thu, Dec 18, 2014 at 12:09:17AM +0000, Arnd Bergmann wrote: > Will, I think we may have a problem on ARM64 now, since we only replaced > set_arch_dma_coherent_ops on ARM32 but not ARM64. Can you send a fix for > this? Without that, we don't have any coherent operations on ARM64 any > more, unless I'm missing something. Good point, I think Will forgot about arm64 (weird ;)). I'll push this out since Will is on holiday, probably shortly after -rc1. -----8<-------------------------------------------- From 40ec7fd94b4efbd5d74185a062433f71c6576e20 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 18 Dec 2014 17:13:49 +0000 Subject: [PATCH] arm64: Replace set_arch_dma_coherent_ops with arch_setup_dma_ops Commit a3a60f81ee6f (dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops) changes the of_dma_configure() arch dma_ops callback to arch_setup_dma_ops but only the arch/arm code is updated. Subsequent commit 97890ba9289c (dma-mapping: detect and configure IOMMU in of_dma_configure) changes the arch_setup_dma_ops() prototype further to handle iommu. The patch makes the corresponding arm64 changes. Signed-off-by: Catalin Marinas Reported-by: Arnd Bergmann Cc: Will Deacon Acked-by: Will Deacon --- arch/arm64/include/asm/dma-mapping.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index d34189bceff7..9ce3e680ae1c 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -52,13 +52,14 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) dev->archdata.dma_ops = ops; } -static inline int set_arch_dma_coherent_ops(struct device *dev) +static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, + struct iommu_ops *iommu, bool coherent) { - dev->archdata.dma_coherent = true; - set_dma_ops(dev, &coherent_swiotlb_dma_ops); - return 0; + dev->archdata.dma_coherent = coherent; + if (coherent) + set_dma_ops(dev, &coherent_swiotlb_dma_ops); } -#define set_arch_dma_coherent_ops set_arch_dma_coherent_ops +#define arch_setup_dma_ops arch_setup_dma_ops /* do not use this function in a driver */ static inline bool is_device_dma_coherent(struct device *dev)