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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 59B41C32771 for ; Fri, 10 Jan 2020 03:09:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C6CB2072E for ; Fri, 10 Jan 2020 03:09:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731088AbgAJDJF (ORCPT ); Thu, 9 Jan 2020 22:09:05 -0500 Received: from foss.arm.com ([217.140.110.172]:39046 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730952AbgAJDJF (ORCPT ); Thu, 9 Jan 2020 22:09:05 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2925411D4; Thu, 9 Jan 2020 19:09:05 -0800 (PST) Received: from p8cg001049571a15.blr.arm.com (p8cg001049571a15.blr.arm.com [10.162.42.128]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5672B3F703; Thu, 9 Jan 2020 19:08:57 -0800 (PST) From: Anshuman Khandual To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, akpm@linux-foundation.org, catalin.marinas@arm.com, will@kernel.org Cc: mark.rutland@arm.com, david@redhat.com, cai@lca.pw, logang@deltatee.com, cpandya@codeaurora.org, arunks@codeaurora.org, dan.j.williams@intel.com, mgorman@techsingularity.net, osalvador@suse.de, ard.biesheuvel@arm.com, steve.capper@arm.com, broonie@kernel.org, valentin.schneider@arm.com, Robin.Murphy@arm.com, steven.price@arm.com, suzuki.poulose@arm.com, ira.weiny@intel.com, Anshuman Khandual , Rob Herring , Frank Rowand , devicetree@vger.kernel.org Subject: [PATCH V11 3/5] of/fdt: Mark boot memory with MEMBLOCK_BOOT Date: Fri, 10 Jan 2020 08:39:13 +0530 Message-Id: <1578625755-11792-4-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1578625755-11792-1-git-send-email-anshuman.khandual@arm.com> References: <1578625755-11792-1-git-send-email-anshuman.khandual@arm.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org early_init_dt_add_memory_arch() adds memory into memblock on both UEFI and DT based arm64 systems. Lets mark these as boot memory right after they get into memblock. All other platforms using this default implementation for early_init_dt_add_memory_arch() will also have this memblock flag set on boot memory ranges but will be upto the platforms if they would like to use it or not. On arm64 platform this flag will be used to identify boot memory at runtime and reject any attempt to remove them. Cc: Rob Herring Cc: Frank Rowand Cc: devicetree@vger.kernel.org Signed-off-by: Anshuman Khandual --- drivers/of/fdt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 2cdf64d..a2ae2c88 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -1143,6 +1143,7 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) base = phys_offset; } memblock_add(base, size); + memblock_mark_boot(base, size); } int __init __weak early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size) -- 2.7.4