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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 C8B43C4707F for ; Thu, 27 May 2021 17:43:54 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 E58AE6052B for ; Thu, 27 May 2021 17:43:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E58AE6052B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FrZtc46Bkz307j for ; Fri, 28 May 2021 03:43:52 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=cmarinas@kernel.org; receiver=) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (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 4FrZtB2gRJz2yjY for ; Fri, 28 May 2021 03:43:30 +1000 (AEST) Received: by mail.kernel.org (Postfix) with ESMTPSA id B02F6610A0; Thu, 27 May 2021 17:43:23 +0000 (UTC) Date: Thu, 27 May 2021 18:43:21 +0100 From: Catalin Marinas To: Kefeng Wang Subject: Re: [PATCH] mm: generalize ZONE_[DMA|DMA32] Message-ID: <20210527174321.GI8661@arm.com> References: <20210527143047.123611-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210527143047.123611-1-wangkefeng.wang@huawei.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, Thomas Bogendoerfer , linux-ia64@vger.kernel.org, Russell King , Will Deacon , Palmer Dabbelt , linux-mips@vger.kernel.org, "David S. Miller" , linux-mm@kvack.org, linux-m68k@lists.linux-m68k.org, Ingo Molnar , Geert Uytterhoeven , linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, Borislav Petkov , Andrew Morton , linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Richard Henderson Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, May 27, 2021 at 10:30:47PM +0800, Kefeng Wang wrote: > ZONE_[DMA|DMA32] configs have duplicate definitions on platforms > that subscribe them. Instead, just make them generic options which > can be selected on applicable platforms. > > Also only x86/arm64 architectures could enable both ZONE_DMA and > ZONE_DMA32 if EXPERT, add ARCH_HAS_ZONE_DMA_SET to make dma zone > configurable and visible on the two architectures. > > Cc: Andrew Morton > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Geert Uytterhoeven > Cc: Thomas Bogendoerfer > Cc: "David S. Miller" > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Palmer Dabbelt > Cc: Richard Henderson > Cc: Russell King > Signed-off-by: Kefeng Wang For arm64: Acked-by: Catalin Marinas