From patchwork Thu Jun 8 13:26:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9774939 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 1BF1C60393 for ; Thu, 8 Jun 2017 13:31:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DE7828543 for ; Thu, 8 Jun 2017 13:31:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 029BD2853E; Thu, 8 Jun 2017 13:31:31 +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=ham 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 E4F67269A3 for ; Thu, 8 Jun 2017 13:31:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752315AbdFHN2v (ORCPT ); Thu, 8 Jun 2017 09:28:51 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:54520 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752249AbdFHN2s (ORCPT ); Thu, 8 Jun 2017 09:28:48 -0400 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=b32hSH5IEVBjlCN7NVj+ixF9++g48vrma/m3FufguJ8=; b=c5w4yqLtY5yc9JIwGMYLoeMjs hrLdQ2Ha3TaRXQ3Go+H4Xjq5fnDTJRW2JgRnW3OGfPktXCo4eQ3hBAQ4qnZUGhJVD4KP+hWMZgV2X lL6hKs6BJxPQRPPn0NHYDnf9N7EwkFsbEe2o9pFOqPi70uM2dTeifV41rmU0NkYrObS9nWmwvL0C3 QyLdoUbsPCwElFyVUYf2mnHxgyV+b9BXre5PWif14VOySLXcw9Q4TwKaab6p0Ih3YBnwbPJHy55OZ /AM7PWA9Ok0qsjvos3i9AaKwvPsgvqKd6L2Ufy4JhGzPlgqC2AJj5iKo34kV24Q9ow8QRODEe+uWo 6W3J2BfLA==; 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 1dIxUM-0007uY-HL; Thu, 08 Jun 2017 13:28:39 +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 Cc: linux-kernel@vger.kernel.org Subject: [PATCH 37/44] mips/loongson64: implement ->dma_supported instead of ->set_dma_mask Date: Thu, 8 Jun 2017 15:26:02 +0200 Message-Id: <20170608132609.32662-38-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 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Same behavior, less code duplication. Signed-off-by: Christoph Hellwig --- arch/mips/loongson64/common/dma-swiotlb.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c index 178ca17a5667..34486c138206 100644 --- a/arch/mips/loongson64/common/dma-swiotlb.c +++ b/arch/mips/loongson64/common/dma-swiotlb.c @@ -75,19 +75,11 @@ static void loongson_dma_sync_sg_for_device(struct device *dev, mb(); } -static int loongson_dma_set_mask(struct device *dev, u64 mask) +static int loongson_dma_supported(struct device *dev, u64 mask) { - if (!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) { - *dev->dma_mask = DMA_BIT_MASK(loongson_sysconf.dma_mask_bits); - return -EIO; - } - - *dev->dma_mask = mask; - - return 0; + if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) + return 0; + return swiotlb_dma_supported(dev, mask); } dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) @@ -126,8 +118,7 @@ static const struct dma_map_ops loongson_dma_map_ops = { .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = loongson_dma_sync_sg_for_device, .mapping_error = swiotlb_dma_mapping_error, - .dma_supported = swiotlb_dma_supported, - .set_dma_mask = loongson_dma_set_mask + .dma_supported = loongson_dma_supported, }; void __init plat_swiotlb_setup(void)