From patchwork Fri Aug 16 13:00:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11097647 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 12CA913B1 for ; Fri, 16 Aug 2019 13:02:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 025F228994 for ; Fri, 16 Aug 2019 13:02:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EAB2F2899B; Fri, 16 Aug 2019 13:02:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.0 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6A28128994 for ; Fri, 16 Aug 2019 13:02:16 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hybqG-0006qG-IT; Fri, 16 Aug 2019 13:00:28 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hybqG-0006qB-1n for xen-devel@lists.xenproject.org; Fri, 16 Aug 2019 13:00:28 +0000 X-Inumbo-ID: d08bd0e8-c025-11e9-b90c-bc764e2007e4 Received: from bombadil.infradead.org (unknown [2607:7c80:54:e::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id d08bd0e8-c025-11e9-b90c-bc764e2007e4; Fri, 16 Aug 2019 13:00:26 +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=+H6Vmvi99DXRckdm80fPfqbJQOOfhCyq72jLJc4AZJs=; b=fg1Fi2Xxi6o0tEMPl8vOVUio7o t8lYiDFMlKhmBktIj6FaJAjvhTvtxU7q3jkmxqQRhTI/HdTspzpS78lfidjtnfpYO24VaQe9Wz1KK tCtfViJsn+lWKv75nqnTVb3cbpPCE4Cfh71jlcNjduABet+BWRUUmdI383RyKapDenQSr5RNN/aS4 x2YDR657QQrxVOkPb60idV50MA0FGiJDwMbglLvDEbEr5jfdBGe7b3yN3pp/BXmBwXZplm7ALRG8z lLOTjA4thw1W37tmnIl/nEBN5R98A765JswKgY2/g+EwMMvWleD8XPyDL+HrhCaQmh3cCi23INZI9 P8K8AfcA==; Received: from [91.112.187.46] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hybqB-0006Lo-8l; Fri, 16 Aug 2019 13:00:23 +0000 From: Christoph Hellwig To: Stefano Stabellini , Konrad Rzeszutek Wilk Date: Fri, 16 Aug 2019 15:00:04 +0200 Message-Id: <20190816130013.31154-3-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190816130013.31154-1-hch@lst.de> References: <20190816130013.31154-1-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 Subject: [Xen-devel] [PATCH 02/11] xen/arm: use dev_is_dma_coherent 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: xen-devel@lists.xenproject.org, iommu@lists.linux-foundation.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Use the dma-noncoherent dev_is_dma_coherent helper instead of the home grown variant. Signed-off-by: Christoph Hellwig Reviewed-by: Julien Grall --- arch/arm/include/asm/dma-mapping.h | 6 ------ arch/arm/xen/mm.c | 12 ++++++------ arch/arm64/include/asm/dma-mapping.h | 9 --------- 3 files changed, 6 insertions(+), 21 deletions(-) diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index dba9355e2484..bdd80ddbca34 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -91,12 +91,6 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) } #endif -/* do not use this function in a driver */ -static inline bool is_device_dma_coherent(struct device *dev) -{ - return dev->archdata.dma_coherent; -} - /** * arm_dma_alloc - allocate consistent memory for DMA * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index d33b77e9add3..90574d89d0d4 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only #include -#include +#include #include #include #include @@ -99,7 +99,7 @@ void __xen_dma_map_page(struct device *hwdev, struct page *page, dma_addr_t dev_addr, unsigned long offset, size_t size, enum dma_data_direction dir, unsigned long attrs) { - if (is_device_dma_coherent(hwdev)) + if (dev_is_dma_coherent(hwdev)) return; if (attrs & DMA_ATTR_SKIP_CPU_SYNC) return; @@ -112,7 +112,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, unsigned long attrs) { - if (is_device_dma_coherent(hwdev)) + if (dev_is_dma_coherent(hwdev)) return; if (attrs & DMA_ATTR_SKIP_CPU_SYNC) return; @@ -123,7 +123,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, void __xen_dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir) { - if (is_device_dma_coherent(hwdev)) + if (dev_is_dma_coherent(hwdev)) return; __xen_dma_page_dev_to_cpu(hwdev, handle, size, dir); } @@ -131,7 +131,7 @@ void __xen_dma_sync_single_for_cpu(struct device *hwdev, void __xen_dma_sync_single_for_device(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir) { - if (is_device_dma_coherent(hwdev)) + if (dev_is_dma_coherent(hwdev)) return; __xen_dma_page_cpu_to_dev(hwdev, handle, size, dir); } @@ -159,7 +159,7 @@ bool xen_arch_need_swiotlb(struct device *dev, * memory and we are not able to flush the cache. */ return (!hypercall_cflush && (xen_pfn != bfn) && - !is_device_dma_coherent(dev)); + !dev_is_dma_coherent(dev)); } int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index bdcb0922a40c..67243255a858 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -18,14 +18,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return NULL; } -/* - * Do not use this function in a driver, it is only provided for - * arch/arm/mm/xen.c, which is used by arm64 as well. - */ -static inline bool is_device_dma_coherent(struct device *dev) -{ - return dev->dma_coherent; -} - #endif /* __KERNEL__ */ #endif /* __ASM_DMA_MAPPING_H */