From patchwork Wed Sep 16 06:14:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11779065 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 578DF112E for ; Wed, 16 Sep 2020 06:24:07 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 292C52067C for ; Wed, 16 Sep 2020 06:24:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mNbs+41z"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="b6RjMPuX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 292C52067C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Tof0shSJYUMZNHMVVTtZh1t7NXv2DU26GonwURkFAhc=; b=mNbs+41zIGr3wlYBAOuwHWrlr J9WQ1tmd93fPJodCOoSocectnpOR1pPReJr0U/VE8MCmWY+v4K1vzJ8eqs8NTzSbUmuHrKGE/x+8F X/8dMWIxazb9ETJmjmuC8gPrRtAWfSnrbLipxgTyd6ujwbY+IeKFwhIlFiWSvqF6cXIkcbzB5EbtD YgMtxGOJzsU391DF7mTPlYHhoZjKor5RXtZPBmzcQwMVpEywYlUfN93fo2kMiH6NUQTUErE8qHNmX 9BsefyXtq1hBgKBfSBscdP1NlU+S/ohnNAslZXNnrvvdxi6vFt0YxajIfmnODS2AgxlWjbVraeMiB fF6CHUglA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIQr7-0007UV-In; Wed, 16 Sep 2020 06:23:49 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIQr5-0007U1-C1 for linux-arm-kernel@merlin.infradead.org; Wed, 16 Sep 2020 06:23:47 +0000 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=BxxgQYY1DeDYvu2hSRXigNNS2r5IsjvTJ3A6Bx2A/Zo=; b=b6RjMPuXBPV1L2xq/9cSN/gZIL pDJ+Ogdkdog3WRMBnL/liSbsVIm+1nFp14fjm5I64vhHz9+kGkq0qLF52sisZUBwipshSOdD0191S VDdtGyd17p1iEYZLfSzwwXKxUhaHHAG+JvnN90NH93XE9E1hMEzKe71YVfkU0Dgg62wMVl8xjEoCf 5+m431sx66nExg52nA9tSj2LwJS3c1e1Xw0Q+eWPX44rHDpNRvMcn6HNNZ0sDFWW7GknRQkxrzcVY Z2Jlrh0MAymYlnYS9SkQSDh9shV3+9w6+Qb0BsQMvh0xi5T5YgBzH+zZViLK00ocpbknb5tvsu620 cDacfLGA==; Received: from 089144214092.atnat0023.highway.a1.net ([89.144.214.92] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIQr2-0007LO-Jc; Wed, 16 Sep 2020 06:23:44 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org, Russell King , Santosh Shilimkar , Greg Kroah-Hartman Subject: [PATCH 3/6] ARM/dma-mapping: move various helpers from dma-mapping.h to dma-direct.h Date: Wed, 16 Sep 2020 08:14:56 +0200 Message-Id: <20200916061500.1970090-4-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200916061500.1970090-1-hch@lst.de> References: <20200916061500.1970090-1-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 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ohad Ben-Cohen , devicetree@vger.kernel.org, Florian Fainelli , linux-sh@vger.kernel.org, Frank Rowand , linux-usb@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Bjorn Andersson , linux-acpi@vger.kernel.org, Rob Herring , Jim Quinlan , linux-pci@vger.kernel.org, Nathan Chancellor , Robin Murphy , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Move the helpers to translate to and from direct mapping DMA addresses to dma-direct.h. This not only is the most logical place, but the new placement also avoids dependency loops with pending commits. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- arch/arm/common/dmabounce.c | 2 +- arch/arm/include/asm/dma-direct.h | 50 ++++++++++++++++++++++++++++++ arch/arm/include/asm/dma-mapping.h | 50 ------------------------------ 3 files changed, 51 insertions(+), 51 deletions(-) diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index f4b719bde76367..d3e00ea9208834 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h index bca0de56753439..fbcf4367b5cb1a 100644 --- a/arch/arm/include/asm/dma-direct.h +++ b/arch/arm/include/asm/dma-direct.h @@ -2,6 +2,56 @@ #ifndef ASM_ARM_DMA_DIRECT_H #define ASM_ARM_DMA_DIRECT_H 1 +#include + +/* + * dma_to_pfn/pfn_to_dma/virt_to_dma are architecture private + * functions used internally by the DMA-mapping API to provide DMA + * addresses. They must not be used by drivers. + */ +#ifndef __arch_pfn_to_dma +static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn) +{ + if (dev) + pfn -= dev->dma_pfn_offset; + return (dma_addr_t)__pfn_to_bus(pfn); +} + +static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr) +{ + unsigned long pfn = __bus_to_pfn(addr); + + if (dev) + pfn += dev->dma_pfn_offset; + + return pfn; +} + +static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) +{ + if (dev) + return pfn_to_dma(dev, virt_to_pfn(addr)); + + return (dma_addr_t)__virt_to_bus((unsigned long)(addr)); +} + +#else +static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn) +{ + return __arch_pfn_to_dma(dev, pfn); +} + +static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr) +{ + return __arch_dma_to_pfn(dev, addr); +} + +static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) +{ + return __arch_virt_to_dma(dev, addr); +} +#endif + static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { unsigned int offset = paddr & ~PAGE_MASK; diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index cf2535fb8891f5..0a1a536368c3a4 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -8,8 +8,6 @@ #include #include -#include - #include #include @@ -23,54 +21,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return NULL; } -/* - * dma_to_pfn/pfn_to_dma/virt_to_dma are architecture private - * functions used internally by the DMA-mapping API to provide DMA - * addresses. They must not be used by drivers. - */ -#ifndef __arch_pfn_to_dma -static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn) -{ - if (dev) - pfn -= dev->dma_pfn_offset; - return (dma_addr_t)__pfn_to_bus(pfn); -} - -static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr) -{ - unsigned long pfn = __bus_to_pfn(addr); - - if (dev) - pfn += dev->dma_pfn_offset; - - return pfn; -} - -static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) -{ - if (dev) - return pfn_to_dma(dev, virt_to_pfn(addr)); - - return (dma_addr_t)__virt_to_bus((unsigned long)(addr)); -} - -#else -static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn) -{ - return __arch_pfn_to_dma(dev, pfn); -} - -static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr) -{ - return __arch_dma_to_pfn(dev, addr); -} - -static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) -{ - return __arch_virt_to_dma(dev, addr); -} -#endif - /** * arm_dma_alloc - allocate consistent memory for DMA * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices