From patchwork Thu Jun 8 13:25:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 773311 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wk7Bw4hXbz9s78 for ; Fri, 9 Jun 2017 00:31:04 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="Hj0uSDUF"; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3wk7Bw13C2zDqFH for ; Fri, 9 Jun 2017 00:31:04 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="Hj0uSDUF"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3wk5ps3trKzDqLK for ; Thu, 8 Jun 2017 23:28:37 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="Hj0uSDUF"; dkim-atps=neutral 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=06v7ciM0NGGCDXqarxHX/zRJ1KdayxLItOHrTFlo9Do=; b=Hj0uSDUFr4hFjBDtPl/jzoWQQ cMNpsB3dKWeSKmFc//I4gfv/ueWlDBm+ykPjyyudYQjR8g37QMIrc9XVL2b/xrtR/9AInJhSQ+3kv 8SzqFB/dPSoc4gD4DmjThYhQievrMN2ZxU5ITNxg1FQQQOGa7HJWMIw5FJPe18+JiCFY7jmjWdabq GNS6DYvV5qE5H1t4riqN925i2cxQDZ7Htxq0OwEcGr/WooaTXr/WE67Fs6DV0INOw7ln3PCAaRqyh WG8OLbS/6M3WPLEhIPTlbm4dGp7TZ6QmA3vh1uBGrxvmLPD0u5eRQj0PKSAVEDW2lbuFgTKRrZm+E y0eeubjGg==; Received: from clnet-p099-196.ikbnet.co.at ([83.175.99.196] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1dIxUA-0007g4-Vi; Thu, 08 Jun 2017 13:28:27 +0000 From: Christoph Hellwig To: x86@kernel.org, linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@linux-mips.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH 34/44] arm: remove arch specific dma_supported implementation Date: Thu, 8 Jun 2017 15:25:59 +0200 Message-Id: <20170608132609.32662-35-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170608132609.32662-1-hch@lst.de> References: <20170608132609.32662-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" And instead wire it up as method for all the dma_map_ops instances. Note that the code seems a little fishy for dmabounce and iommu, but for now I'd like to preserve the existing behavior 1:1. Signed-off-by: Christoph Hellwig --- arch/arm/common/dmabounce.c | 1 + arch/arm/include/asm/dma-iommu.h | 2 ++ arch/arm/include/asm/dma-mapping.h | 3 --- arch/arm/mm/dma-mapping.c | 7 +++++-- 4 files changed, 8 insertions(+), 5 deletions(-) diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index bad457395ff1..4aabf117e136 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -476,6 +476,7 @@ static const struct dma_map_ops dmabounce_ops = { .sync_sg_for_device = arm_dma_sync_sg_for_device, .set_dma_mask = dmabounce_set_mask, .mapping_error = dmabounce_mapping_error, + .dma_supported = arm_dma_supported, }; static int dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h index 389a26a10ea3..c090ec675eac 100644 --- a/arch/arm/include/asm/dma-iommu.h +++ b/arch/arm/include/asm/dma-iommu.h @@ -35,5 +35,7 @@ int arm_iommu_attach_device(struct device *dev, struct dma_iommu_mapping *mapping); void arm_iommu_detach_device(struct device *dev); +int arm_dma_supported(struct device *dev, u64 mask); + #endif /* __KERNEL__ */ #endif diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 52a8fd5a8edb..8dabcfdf4505 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -20,9 +20,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return &arm_dma_ops; } -#define HAVE_ARCH_DMA_SUPPORTED 1 -extern int dma_supported(struct device *dev, u64 mask); - #ifdef __arch_page_to_dma #error Please update to __arch_pfn_to_dma #endif diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 2dbc94b5fe5c..2938b724826e 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -199,6 +199,7 @@ const struct dma_map_ops arm_dma_ops = { .sync_sg_for_cpu = arm_dma_sync_sg_for_cpu, .sync_sg_for_device = arm_dma_sync_sg_for_device, .mapping_error = arm_dma_mapping_error, + .dma_supported = arm_dma_supported, }; EXPORT_SYMBOL(arm_dma_ops); @@ -218,6 +219,7 @@ const struct dma_map_ops arm_coherent_dma_ops = { .map_page = arm_coherent_dma_map_page, .map_sg = arm_dma_map_sg, .mapping_error = arm_dma_mapping_error, + .dma_supported = arm_dma_supported, }; EXPORT_SYMBOL(arm_coherent_dma_ops); @@ -1184,11 +1186,10 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, * during bus mastering, then you would pass 0x00ffffff as the mask * to this function. */ -int dma_supported(struct device *dev, u64 mask) +int arm_dma_supported(struct device *dev, u64 mask) { return __dma_supported(dev, mask, false); } -EXPORT_SYMBOL(dma_supported); #define PREALLOC_DMA_DEBUG_ENTRIES 4096 @@ -2149,6 +2150,7 @@ const struct dma_map_ops iommu_ops = { .unmap_resource = arm_iommu_unmap_resource, .mapping_error = arm_dma_mapping_error, + .dma_supported = arm_dma_supported, }; const struct dma_map_ops iommu_coherent_ops = { @@ -2167,6 +2169,7 @@ const struct dma_map_ops iommu_coherent_ops = { .unmap_resource = arm_iommu_unmap_resource, .mapping_error = arm_dma_mapping_error, + .dma_supported = arm_dma_supported, }; /**