From patchwork Thu Jun 8 13:25:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9774955 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 98BC660393 for ; Thu, 8 Jun 2017 13:32:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8ADBB28557 for ; Thu, 8 Jun 2017 13:32:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7EE1728564; Thu, 8 Jun 2017 13:32:20 +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 2B1012855A for ; Thu, 8 Jun 2017 13:32:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751997AbdFHN2h (ORCPT ); Thu, 8 Jun 2017 09:28:37 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:50915 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751683AbdFHN23 (ORCPT ); Thu, 8 Jun 2017 09:28:29 -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=ci2kPdKPPHqYb7U2ysN0uHByFLmh4pJ8fITGByEW8Do=; b=sHCB7muzqIfhZrfhfmrPh/1n5 1FPLpeJVQ1LTH/Uz5iSx4LPPLuuvhE7iCGCLszw3STfd+R9BdayERUHkUk7ygpehRvER68kqvC88+ BHRxQLPYdfIBAU3LsaMnOYoqp553LdRqFFKaWrAH2sVacARSuZnijGeTOAMOroXOqMrf/MI2bAajY QBDtKfSIgVbcet/6A2MOgxBxH7uJjHdBczKlGwgVzVI3jSjw82K4aagik3v3viXhFWxQZMPYBXpkG hw7FL/a3DD/Ru1Qwl/kdI+cMvKYXnSE0TuruspfR0Up+dN6l4zgaKIyCCAlqkpRiYXsBcduVLL3/7 CsyzAM+BQ==; 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 1dIxTy-0007PK-J9; Thu, 08 Jun 2017 13:28:15 +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 31/44] hexagon: remove arch-specific dma_supported implementation Date: Thu, 8 Jun 2017 15:25:56 +0200 Message-Id: <20170608132609.32662-32-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: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This implementation is simply bogus - hexagon only has a simple direct mapped DMA implementation and thus doesn't care about the address. Signed-off-by: Christoph Hellwig Acked-by: Richard Kuo --- arch/hexagon/include/asm/dma-mapping.h | 2 -- arch/hexagon/kernel/dma.c | 9 --------- 2 files changed, 11 deletions(-) diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index 00e3f10113b0..9c15cb5271a6 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -37,8 +37,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return dma_ops; } -#define HAVE_ARCH_DMA_SUPPORTED 1 -extern int dma_supported(struct device *dev, u64 mask); extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle); extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction); diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 71269dc0f225..9ff1b2041f85 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -35,15 +35,6 @@ static inline void *dma_addr_to_virt(dma_addr_t dma_addr) return phys_to_virt((unsigned long) dma_addr); } -int dma_supported(struct device *dev, u64 mask) -{ - if (mask == DMA_BIT_MASK(32)) - return 1; - else - return 0; -} -EXPORT_SYMBOL(dma_supported); - static struct gen_pool *coherent_pool;