From patchwork Sun Dec 26 08:39:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 1573214 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4JMDWT6VNyz9ssD for ; Sun, 26 Dec 2021 19:30:13 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JMDWP287Zz3c6Q for ; Sun, 26 Dec 2021 19:30:09 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=huawei.com (client-ip=45.249.212.189; helo=szxga03-in.huawei.com; envelope-from=wangkefeng.wang@huawei.com; receiver=) Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (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 4JMDWC5PSZz2xsG for ; Sun, 26 Dec 2021 19:29:58 +1100 (AEDT) Received: from dggpemm500020.china.huawei.com (unknown [172.30.72.56]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4JMDSF3dNkz8w56; Sun, 26 Dec 2021 16:27:25 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500020.china.huawei.com (7.185.36.49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Sun, 26 Dec 2021 16:29:50 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Sun, 26 Dec 2021 16:29:49 +0800 From: Kefeng Wang To: Jonathan Corbet , Andrew Morton , , , , , , Subject: [PATCH 2/3] arm64: Support huge vmalloc mappings Date: Sun, 26 Dec 2021 16:39:11 +0800 Message-ID: <20211226083912.166512-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20211226083912.166512-1-wangkefeng.wang@huawei.com> References: <20211226083912.166512-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected 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: Kefeng Wang , Catalin Marinas , Dave Hansen , Nicholas Piggin , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Paul Mackerras , Thomas Gleixner , Will Deacon Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This patch select HAVE_ARCH_HUGE_VMALLOC to let arm64 support huge vmalloc mappings, it is disabled by default, use hugevmalloc=on to enable it in some scenarios. Cc: Catalin Marinas Cc: Will Deacon Signed-off-by: Kefeng Wang --- Documentation/admin-guide/kernel-parameters.txt | 4 ++-- arch/arm64/Kconfig | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 4107136097a6..235a23b08809 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1630,7 +1630,7 @@ precedence over memory_hotplug.memmap_on_memory. - hugevmalloc= [PPC] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC + hugevmalloc= [KNL,PPC,ARM64] Reguires CONFIG_HAVE_ARCH_HUGE_VMALLOC Format: { on | off } Default set by CONFIG_HUGE_VMALLOC_DEFAULT_ENABLED. @@ -3415,7 +3415,7 @@ nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings. - nohugevmalloc [PPC] Disable kernel huge vmalloc mappings. + nohugevmalloc [KNL,PPC,ARM64] Disable kernel huge vmalloc mappings. nosmt [KNL,S390] Disable symmetric multithreading (SMT). Equivalent to smt=1. diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index c4207cf9bb17..6cedb06b4cab 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -143,6 +143,7 @@ config ARM64 select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE select HAVE_ARCH_COMPILER_H + select HAVE_ARCH_HUGE_VMALLOC select HAVE_ARCH_HUGE_VMAP select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE