From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50811C433E7 for ; Sat, 10 Oct 2020 15:12:54 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 007DC2227F for ; Sat, 10 Oct 2020 15:12:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 007DC2227F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 964BC2E2F3; Sat, 10 Oct 2020 15:12:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3fhFeoD0SkKY; Sat, 10 Oct 2020 15:12:51 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 8E481204A3; Sat, 10 Oct 2020 15:12:51 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 7F2BDC016F; Sat, 10 Oct 2020 15:12:51 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 71754C0051 for ; Sat, 10 Oct 2020 15:12:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 614458704F for ; Sat, 10 Oct 2020 15:12:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c5gwICxo0Ngv for ; Sat, 10 Oct 2020 15:12:49 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by fraxinus.osuosl.org (Postfix) with ESMTPS id D493186FAF for ; Sat, 10 Oct 2020 15:12:48 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 76492B14E; Sat, 10 Oct 2020 15:12:47 +0000 (UTC) From: Nicolas Saenz Julienne To: robh+dt@kernel.org, catalin.marinas@arm.com, hch@lst.de, ardb@kernel.org, linux-kernel@vger.kernel.org, Marek Szyprowski , Robin Murphy Subject: [PATCH v2 3/5] dma-direct: Turn zone_dma_bits default value into a define Date: Sat, 10 Oct 2020 17:12:33 +0200 Message-Id: <20201010151235.20585-4-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201010151235.20585-1-nsaenzjulienne@suse.de> References: <20201010151235.20585-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, jeremy.linton@arm.com, iommu@lists.linux-foundation.org, linux-rpi-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" So as for architecture code to set their own default values when relevant. Signed-off-by: Nicolas Saenz Julienne --- Note: This is not really needed, but I think it nicer having architectures use this than setting zone_dma_bits in a random place in arch code. That said, I'll hapily edit it out if you don't agree. include/linux/dma-direct.h | 3 +++ kernel/dma/direct.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h index 18aade195884..e433d90cbacf 100644 --- a/include/linux/dma-direct.h +++ b/include/linux/dma-direct.h @@ -12,6 +12,9 @@ #include #include +#ifndef ZONE_DMA_BITS_DEFAULT +#define ZONE_DMA_BITS_DEFAULT 24 +#endif extern unsigned int zone_dma_bits; /* diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 06c111544f61..c0d97f536e93 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -20,7 +20,7 @@ * it for entirely different regions. In that case the arch code needs to * override the variable below for dma-direct to work properly. */ -unsigned int zone_dma_bits __ro_after_init = 24; +unsigned int zone_dma_bits __ro_after_init = ZONE_DMA_BITS_DEFAULT; static inline dma_addr_t phys_to_dma_direct(struct device *dev, phys_addr_t phys) -- 2.28.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu