From patchwork Thu Oct 1 16:17:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11811861 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E285D6CB for ; Thu, 1 Oct 2020 16:19:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 A7E86208B6 for ; Thu, 1 Oct 2020 16:19:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cZuvbyfl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A7E86208B6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ySZZD6d7vwd/xRwYMiAjs9DL9tcRrdH0+gvHNO5huIo=; b=cZuvbyflXu6jRqu6B9F/2fSw1 V+8DmaDqJ6I759mbTFEsQyF9Fm4F3grk4mDTnDWHQwp3nE0Hyi7v4XMEQ3nCTtpCErfBTCMpvuYW8 Qma/oGwfJzdyVyLkkXUExML/YcQtZA5e8HsUv1L6d9xtuz5mDZJzaf4P6BKCawgQTK2jBELWy35is GoX0F2mmuINd3Mdze+iuMh7HiSVu3XqfYUnq9s8apPvJIc89bWNxe4H/IQrziGOMn7/AJ89RK5Gk/ bhzyoqGNrKfcItvHRgDhZMtfKtzoKgRtlymtBLwLque2diIiwSx4YPW7IkxqkYpcMPOiHoluTzq/P SAcRpLm3A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kO1HV-0004Vi-9s; Thu, 01 Oct 2020 16:18:09 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kO1HL-0004P4-E6; Thu, 01 Oct 2020 16:18:01 +0000 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 BB25BAFCB; Thu, 1 Oct 2020 16:17:57 +0000 (UTC) From: Nicolas Saenz Julienne To: robh+dt@kernel.org, catalin.marinas@arm.com, hch@lst.de, robin.murphy@arm.com, devicetree@vger.kernel.org, iommu@lists.linux-foundation.org, linux-mm@kvack.org, Andrew Morton Subject: [PATCH 4/4] mm: Update DMA zones description Date: Thu, 1 Oct 2020 18:17:40 +0200 Message-Id: <20201001161740.29064-5-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201001161740.29064-1-nsaenzjulienne@suse.de> References: <20201001161740.29064-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201001_121759_672793_10DE57B9 X-CRM114-Status: GOOD ( 13.39 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [195.135.220.15 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicolas Saenz Julienne , will@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The default behavior for arm64 changed, so reflect that. Signed-off-by: Nicolas Saenz Julienne Acked-by: Catalin Marinas --- include/linux/mmzone.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index fb3bf696c05e..d28ce77ccc2a 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -363,8 +363,9 @@ enum zone_type { * - arm only uses ZONE_DMA, the size, up to 4G, may vary depending on * the specific device. * - * - arm64 has a fixed 1G ZONE_DMA and ZONE_DMA32 for the rest of the - * lower 4G. + * - arm64 uses a single 4GB ZONE_DMA, except on the Raspberry Pi 4, + * in which ZONE_DMA covers the first GB and ZONE_DMA32 the rest of + * the lower 4GB. * * - powerpc only uses ZONE_DMA, the size, up to 2G, may vary * depending on the specific device.