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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 2407CC43141 for ; Thu, 21 Jun 2018 01:48:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DAD0C20837 for ; Thu, 21 Jun 2018 01:48:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DAD0C20837 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=andestech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754494AbeFUBsJ (ORCPT ); Wed, 20 Jun 2018 21:48:09 -0400 Received: from exmail.andestech.com ([59.124.169.137]:22998 "EHLO ATCSQR.andestech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754443AbeFUBsH (ORCPT ); Wed, 20 Jun 2018 21:48:07 -0400 Received: from ATCSQR.andestech.com (localhost [127.0.0.2] (may be forged)) by ATCSQR.andestech.com with ESMTP id w5L1fuv4038389 for ; Thu, 21 Jun 2018 09:41:56 +0800 (GMT-8) (envelope-from zong@andestech.com) Received: from mail.andestech.com (atcpcs16.andestech.com [10.0.1.222]) by ATCSQR.andestech.com with ESMTP id w5L1ffX3038354; Thu, 21 Jun 2018 09:41:41 +0800 (GMT-8) (envelope-from zong@andestech.com) Received: from atcsqa06.andestech.com (10.0.1.85) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.123.3; Thu, 21 Jun 2018 09:42:04 +0800 From: Zong Li To: , , , CC: Zong Li , Subject: [PATCH 1/5] RISC-V: Add conditional macro for zone of DMA32 Date: Thu, 21 Jun 2018 09:41:41 +0800 Message-ID: <79dba59ab02752b260cb31f557a09df786fd80d7.1529506497.git.zong@andestech.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.0.1.85] X-DNSRBL: X-MAIL: ATCSQR.andestech.com w5L1ffX3038354 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The DMA32 is for 64-bit usage. Signed-off-by: Zong Li --- arch/riscv/mm/init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index c77df8142be2..91a5852e28fd 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -28,8 +28,11 @@ static void __init zone_sizes_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, }; +#ifdef CONFIG_ZONE_DMA32 max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn)); +#else max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +#endif free_area_init_nodes(max_zone_pfns); } -- 2.16.1