From patchwork Fri Dec 29 08:18:13 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10136371 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E80BC603FA for ; Fri, 29 Dec 2017 08:20:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D71082DEEC for ; Fri, 29 Dec 2017 08:20:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CBAD22DEED; Fri, 29 Dec 2017 08:20:08 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72E642DEEE for ; Fri, 29 Dec 2017 08:20:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755743AbdL2IUH (ORCPT ); Fri, 29 Dec 2017 03:20:07 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:46899 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755644AbdL2IUA (ORCPT ); Fri, 29 Dec 2017 03:20:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding: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=N6NAS9/cKCG1uUaXnkVziijkDdPpsEDuILlLpQY1cjY=; b=uUaUxscoEUT4K7KNzFqNYRbhb ofuYGpVqgC7X9NaIukHzTrC3kDpPhTnQeL3yyiw1QAd6vtFQFJxNaNQOb/4ETU/UVmXX7MjoZRkLZ fflEes7g4b8g7a3xR+Kepw1+v2ZIX+unR/3y5NJzEthf2lII/xQwX6U+uEeR0QDRpJay3cn56JZmG fdbkBUHMED8TehCKZBy9EGlmsrPEfip7NtYosiihLaS9N0GhluqQWT7wSOxWfzyKd6X//CaaQu0QW qrWJFt4vQWeRR5r7CZnYEWRtXCsxt9jm05V8+QNIa5Rvsr7zuI3j6vUDLYxME8OV3I/E+lhFp3A3l 01o70S3sA==; Received: from 77.117.237.29.wireless.dyn.drei.com ([77.117.237.29] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.89 #1 (Red Hat Linux)) id 1eUptU-0000Dy-NZ; Fri, 29 Dec 2017 08:19:57 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, adi-buildroot-devel@lists.sourceforge.net, linux-c6x-dev@linux-c6x.org, linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-metag@vger.kernel.org, Michal Simek , linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, Guan Xuetao , x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 09/67] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA Date: Fri, 29 Dec 2017 09:18:13 +0100 Message-Id: <20171229081911.2802-10-hch@lst.de> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171229081911.2802-1-hch@lst.de> References: <20171229081911.2802-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We always use the stub definitions, so remove the unused other code. Signed-off-by: Christoph Hellwig Acked-by: Vineet Gupta --- arch/arc/Kconfig | 3 --- arch/arc/include/asm/dma-mapping.h | 7 ------- arch/arc/mm/dma.c | 14 +++++++------- 3 files changed, 7 insertions(+), 17 deletions(-) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 9d5fd00d9e91..f3a80cf164cc 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -463,9 +463,6 @@ config ARCH_PHYS_ADDR_T_64BIT config ARCH_DMA_ADDR_T_64BIT bool -config ARC_PLAT_NEEDS_PHYS_TO_DMA - bool - config ARC_KVADDR_SIZE int "Kernel Virtual Address Space size (MB)" range 0 512 diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h index 94285031c4fb..7a16824bfe98 100644 --- a/arch/arc/include/asm/dma-mapping.h +++ b/arch/arc/include/asm/dma-mapping.h @@ -11,13 +11,6 @@ #ifndef ASM_ARC_DMA_MAPPING_H #define ASM_ARC_DMA_MAPPING_H -#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA -#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle)) -#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr)) -#else -#include -#endif - extern const struct dma_map_ops arc_dma_ops; static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index fad18261ef6a..1d405b86250c 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -60,7 +60,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size, /* This is linear addr (0x8000_0000 based) */ paddr = page_to_phys(page); - *dma_handle = plat_phys_to_dma(dev, paddr); + *dma_handle = paddr; /* This is kernel Virtual address (0x7000_0000 based) */ if (need_kvaddr) { @@ -92,7 +92,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size, static void arc_dma_free(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, unsigned long attrs) { - phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle); + phys_addr_t paddr = dma_handle; struct page *page = virt_to_page(paddr); int is_non_coh = 1; @@ -111,7 +111,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma, { unsigned long user_count = vma_pages(vma); unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT; - unsigned long pfn = __phys_to_pfn(plat_dma_to_phys(dev, dma_addr)); + unsigned long pfn = __phys_to_pfn(dma_addr); unsigned long off = vma->vm_pgoff; int ret = -ENXIO; @@ -175,7 +175,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page, if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) _dma_cache_sync(paddr, size, dir); - return plat_phys_to_dma(dev, paddr); + return paddr; } /* @@ -190,7 +190,7 @@ static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs) { - phys_addr_t paddr = plat_dma_to_phys(dev, handle); + phys_addr_t paddr = handle; if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) _dma_cache_sync(paddr, size, dir); @@ -224,13 +224,13 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg, static void arc_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) { - _dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_FROM_DEVICE); + _dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE); } static void arc_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) { - _dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_TO_DEVICE); + _dma_cache_sync(dma_handle, size, DMA_TO_DEVICE); } static void arc_dma_sync_sg_for_cpu(struct device *dev,