From patchwork Thu Oct 20 07:23:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 13012729 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96131C433FE for ; Thu, 20 Oct 2022 07:25:21 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CF9076B0071; Thu, 20 Oct 2022 03:25:20 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CA8E26B0073; Thu, 20 Oct 2022 03:25:20 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BBFF26B0074; Thu, 20 Oct 2022 03:25:20 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id AD62D6B0071 for ; Thu, 20 Oct 2022 03:25:20 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 77EF71409D9 for ; Thu, 20 Oct 2022 07:25:20 +0000 (UTC) X-FDA: 80040492000.12.7198160 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf27.hostedemail.com (Postfix) with ESMTP id 8EE3D40027 for ; Thu, 20 Oct 2022 07:25:19 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8D712B82690; Thu, 20 Oct 2022 07:25:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4463CC433D7; Thu, 20 Oct 2022 07:25:11 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Huacai Chen , Thomas Bogendoerfer , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Catalin Marinas , Will Deacon , Dinh Nguyen Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, Xuefeng Li , Guo Ren , Xuerui Wang , Jiaxun Yang , Andrew Morton , linux-mm@kvack.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Huacai Chen , Feiyang Chen Subject: [PATCH V12 0/4] mm/sparse-vmemmap: Generalise helpers and enable for LoongArch Date: Thu, 20 Oct 2022 15:23:13 +0800 Message-Id: <20221020072317.492906-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of "SRS0=9DUK=2V=loongson.cn=chenhuacai@kernel.org" designates 145.40.68.75 as permitted sender) smtp.mailfrom="SRS0=9DUK=2V=loongson.cn=chenhuacai@kernel.org"; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666250720; a=rsa-sha256; cv=none; b=2XvMC72Iafdkf4EDJ6AxWndehuDrWbTzi4P6qVDNIaOHO12KlVoklgEA1rAkrWC5mxxifS K3wrFKVk16vCGJmM00SERnwVMfLjc3LtU+d/DtbvUTuMclVJ24zIRbaYALyIqfKsowaVcc coPpzInEWgz5Yg+FcIiHlzIWSqW6EvU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666250720; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references; bh=yAZ1ORJ3p+NmYDz5laTe7nu8RD/NClnbtZrChT7/sJ4=; b=Kxqp6sWIkA45sQaG7lbMV6RoEUk9hSjxzTzKchOP77X0Wbg/q3ycYr9wtfjyC4nW9UvBN5 lhaZbaF4EZnO5Z0XJM6hPU+i63qiPh04kZsjvO/2yGr79EwZn+/VYU8P4IrFExeP9POMmm GbIJ9GRH55m1rDxZqVJbXA5LkSjiHpI= Authentication-Results: imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of "SRS0=9DUK=2V=loongson.cn=chenhuacai@kernel.org" designates 145.40.68.75 as permitted sender) smtp.mailfrom="SRS0=9DUK=2V=loongson.cn=chenhuacai@kernel.org"; dmarc=none X-Stat-Signature: f9ote4swnt98m75rn47c7jzgqa36pcjw X-Rspamd-Queue-Id: 8EE3D40027 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1666250719-139675 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This series is in order to enable sparse-vmemmap for LoongArch. But LoongArch cannot use generic helpers directly because MIPS&LoongArch need to call pgd_init()/pud_init()/pmd_init() when populating page tables. So we adjust the prototypes of p?d_init() to make generic helpers can call them, then enable sparse-vmemmap with generic helpers, and to be further, generalise vmemmap_populate_hugepages() for ARM64, X86 and LoongArch. V1 -> V2: Split ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP to a separate patch. V2 -> V3: 1, Change the Signed-off-by order of author and committer; 2, Update commit message about the build error on LoongArch. V3 -> V4: Change pmd to pmdp for ARM64 for consistency. V4 -> V5: Add a detailed comment for no-fallback in the altmap case. V5 -> V6: 1, Fix build error for NIOS2; 2, Fix build error for allnoconfig; 3, Update comment for no-fallback in the altmap case. V6 -> V7: Fix build warnings of "no previous prototype". V7 -> V8: Fix build error for MIPS pud_init(). V8 -> V9: Remove redundant #include to avoid build error with latest upstream kernel. V9 -> V10: Fix build error due to VMEMMAP changes in 6.0-rc1. V10 -> V11: Adjust context due to ARM64 changes in 6.1-rc1. V11 -> V12: 1, Fix build error for !SPARSEMEM; 2, Simplify pagetable_init() for MIPS32. Huacai Chen and Feiyang Chen(4): MIPS&LoongArch&NIOS2: Adjust prototypes of p?d_init(). LoongArch: Add sparse memory vmemmap support. mm/sparse-vmemmap: Generalise vmemmap_populate_hugepages(). LoongArch: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP. Signed-off-by: Huacai Chen Signed-off-by: Feiyang Chen --- arch/arm64/mm/mmu.c | 53 ++++++-------------- arch/loongarch/Kconfig | 2 + arch/loongarch/include/asm/pgalloc.h | 13 +---- arch/loongarch/include/asm/pgtable.h | 13 +++-- arch/loongarch/include/asm/sparsemem.h | 8 +++ arch/loongarch/kernel/numa.c | 4 +- arch/loongarch/mm/init.c | 44 +++++++++++++++- arch/loongarch/mm/pgtable.c | 23 +++++---- arch/mips/include/asm/pgalloc.h | 8 +-- arch/mips/include/asm/pgtable-64.h | 8 +-- arch/mips/kvm/mmu.c | 3 +- arch/mips/mm/pgtable-32.c | 10 ++-- arch/mips/mm/pgtable-64.c | 18 ++++--- arch/mips/mm/pgtable.c | 2 +- arch/x86/mm/init_64.c | 92 ++++++++++++---------------------- include/linux/mm.h | 8 +++ include/linux/page-flags.h | 1 + mm/sparse-vmemmap.c | 64 +++++++++++++++++++++++ 18 files changed, 222 insertions(+), 152 deletions(-) -- 2.27.0