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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 880EDC282D8 for ; Mon, 4 Feb 2019 08:14:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4C954214DA for ; Mon, 4 Feb 2019 08:14:44 +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="uvp/N2xQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728325AbfBDIOh (ORCPT ); Mon, 4 Feb 2019 03:14:37 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:51284 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726795AbfBDIOg (ORCPT ); Mon, 4 Feb 2019 03:14:36 -0500 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=J1HK3UzwyoFhBVCnUufsYsHJwomm5rWZa0tnfGAaT0U=; b=uvp/N2xQ0ulxtO4OM4v6VfyrOc i1gAILSCtnAIri2+tdJ3l74aC4Q35/d9rhEVOpNHJ0tyq5uGFBpds3Sj2tv7z9CUWt5RbRcfY9VUH Z84eS2lRK4Te/G+qrMYofuEBvi5vtA5vkEpxN4UbfjhOIRcE/s3zFLwz1rZjdUWMm8ouj5ejjfNPP nhiU78PhM8OqdayKcX5mwPWtHvL434ZGh/h5viwxVklK91voSx6HLVqasTg/P76eFgUL4zKw1Qeur 0A4CPIRdhz8hq7F+uaoQ2gV55FUl5X3VcUFGxuCc7nksqIKPpvVQEjxYRRexvWZqxYqIVo0q/igFs rL4Vggbw==; Received: from 089144212163.atnat0021.highway.a1.net ([89.144.212.163] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gqZOc-0008Pp-Hp; Mon, 04 Feb 2019 08:14:26 +0000 From: Christoph Hellwig To: Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Paul Burton Cc: linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability Date: Mon, 4 Feb 2019 09:14:19 +0100 Message-Id: <20190204081420.15083-2-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190204081420.15083-1-hch@lst.de> References: <20190204081420.15083-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Christoph Hellwig --- arch/arc/Kconfig | 1 + arch/arc/include/asm/Kbuild | 1 + arch/arc/include/asm/dma-mapping.h | 13 ------------- arch/arm/Kconfig | 1 + arch/arm/include/asm/dma-mapping.h | 4 ---- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/dma-mapping.h | 4 ---- arch/mips/Kconfig | 1 + arch/mips/include/asm/dma-mapping.h | 10 ---------- arch/mips/mm/dma-noncoherent.c | 8 ++++++++ include/linux/dma-mapping.h | 12 ++++++++---- kernel/dma/Kconfig | 3 +++ 12 files changed, 24 insertions(+), 35 deletions(-) delete mode 100644 arch/arc/include/asm/dma-mapping.h diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 376366a7db81..2ab27d88eb1c 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -11,6 +11,7 @@ config ARC select ARC_TIMERS select ARCH_HAS_DMA_COHERENT_TO_PFN select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_SETUP_DMA_OPS select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index caa270261521..b41f8881ecc8 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -3,6 +3,7 @@ generic-y += bugs.h generic-y += compat.h generic-y += device.h generic-y += div64.h +generic-y += dma-mapping.h generic-y += emergency-restart.h generic-y += extable.h generic-y += ftrace.h diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h deleted file mode 100644 index c946c0a83e76..000000000000 --- a/arch/arc/include/asm/dma-mapping.h +++ /dev/null @@ -1,13 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// (C) 2018 Synopsys, Inc. (www.synopsys.com) - -#ifndef ASM_ARC_DMA_MAPPING_H -#define ASM_ARC_DMA_MAPPING_H - -#include - -void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, - const struct iommu_ops *iommu, bool coherent); -#define arch_setup_dma_ops arch_setup_dma_ops - -#endif diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 664e918e2624..c1cf44f00870 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -12,6 +12,7 @@ config ARM select ARCH_HAS_MEMBARRIER_SYNC_CORE select ARCH_HAS_PTE_SPECIAL if ARM_LPAE select ARCH_HAS_PHYS_TO_DMA + select ARCH_HAS_SETUP_DMA_OPS select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL select ARCH_HAS_STRICT_MODULE_RWX if MMU diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 31d3b96f0f4b..a224b6e39e58 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -96,10 +96,6 @@ static inline unsigned long dma_max_pfn(struct device *dev) } #define dma_max_pfn(dev) dma_max_pfn(dev) -#define arch_setup_dma_ops arch_setup_dma_ops -extern void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, - const struct iommu_ops *iommu, bool coherent); - #ifdef CONFIG_MMU #define arch_teardown_dma_ops arch_teardown_dma_ops extern void arch_teardown_dma_ops(struct device *dev); diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index a4168d366127..63909f318d56 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -22,6 +22,7 @@ config ARM64 select ARCH_HAS_KCOV select ARCH_HAS_MEMBARRIER_SYNC_CORE select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_SETUP_DMA_OPS select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 95dbf3ef735a..de96507ee2c1 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -29,10 +29,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return NULL; } -void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, - const struct iommu_ops *iommu, bool coherent); -#define arch_setup_dma_ops arch_setup_dma_ops - #ifdef CONFIG_IOMMU_DMA void arch_teardown_dma_ops(struct device *dev); #define arch_teardown_dma_ops arch_teardown_dma_ops diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 0d14f51d0002..dc5d70f674e0 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1118,6 +1118,7 @@ config DMA_MAYBE_COHERENT config DMA_PERDEV_COHERENT bool + select ARCH_HAS_SETUP_DMA_OPS select DMA_NONCOHERENT config DMA_NONCOHERENT diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 20dfaad3a55d..34de7b17b41b 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -15,14 +15,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) #endif } -#define arch_setup_dma_ops arch_setup_dma_ops -static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, - u64 size, const struct iommu_ops *iommu, - bool coherent) -{ -#ifdef CONFIG_DMA_PERDEV_COHERENT - dev->dma_coherent = coherent; -#endif -} - #endif /* _ASM_DMA_MAPPING_H */ diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index cb38461391cb..0606fc87b294 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -159,3 +159,11 @@ void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size, dma_sync_virt(vaddr, size, direction); } + +#ifdef CONFIG_DMA_PERDEV_COHERENT +void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, + const struct iommu_ops *iommu, bool coherent) +{ + dev->dma_coherent = coherent; +} +#endif diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index b904d55247ab..2b20d60e6158 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -671,11 +671,15 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask) return dma_set_mask_and_coherent(dev, mask); } -#ifndef arch_setup_dma_ops +#ifdef CONFIG_ARCH_HAS_SETUP_DMA_OPS +void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, + const struct iommu_ops *iommu, bool coherent); +#else static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, - u64 size, const struct iommu_ops *iommu, - bool coherent) { } -#endif + u64 size, const struct iommu_ops *iommu, bool coherent) +{ +} +#endif /* CONFIG_ARCH_HAS_SETUP_DMA_OPS */ #ifndef arch_teardown_dma_ops static inline void arch_teardown_dma_ops(struct device *dev) { } diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index ca88b867e7fe..c44599d128e8 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -19,6 +19,9 @@ config ARCH_HAS_DMA_COHERENCE_H config HAVE_GENERIC_DMA_COHERENT bool +config ARCH_HAS_SETUP_DMA_OPS + bool + config ARCH_HAS_SYNC_DMA_FOR_DEVICE bool -- 2.20.1