From patchwork Thu Jul 28 11:37:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12931123 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 A0250C19F21 for ; Thu, 28 Jul 2022 11:37:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BE5098E0001; Thu, 28 Jul 2022 07:37:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B6D986B0072; Thu, 28 Jul 2022 07:37:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9E7BD8E0001; Thu, 28 Jul 2022 07:37:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 88E846B0071 for ; Thu, 28 Jul 2022 07:37:45 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 65DDF141457 for ; Thu, 28 Jul 2022 11:37:45 +0000 (UTC) X-FDA: 79736308890.09.C4BC1E5 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf11.hostedemail.com (Postfix) with ESMTP id B81FA400CB for ; Thu, 28 Jul 2022 11:37:44 +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 AB3B6B80171; Thu, 28 Jul 2022 11:37:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 864BEC433D6; Thu, 28 Jul 2022 11:37:36 +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 V6 0/4] mm/sparse-vmemmap: Generalise helpers and enable for LoongArch Date: Thu, 28 Jul 2022 19:37:57 +0800 Message-Id: <20220728113801.2235151-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1659008265; 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=a5rXtSBRuYLbU63y6lrxrtrEoa9ru6L6My+3f91rTHo=; b=nKhnE2S3cUVqgedQYDPWaSjMoPQUv9QMYIyPTTheNX3jpmu+ltKYMcPCPUjpRPT4Vy8Fuu TrCny3ouK5CVhQChPlQoslhK/j2RHBjMeRhPc37Me0QOwSnto2IQu31des3g4nVl3DDx4t v5wcnh4FhXngyWQifUPNUWYGZlFNBb4= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=none; spf=pass (imf11.hostedemail.com: domain of "SRS0=96hn=YB=loongson.cn=chenhuacai@kernel.org" designates 145.40.68.75 as permitted sender) smtp.mailfrom="SRS0=96hn=YB=loongson.cn=chenhuacai@kernel.org"; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1659008265; a=rsa-sha256; cv=none; b=fTtErF7VJSHs/lo6BopIZIOw6zDiqvK5yKVr6e6PI8Cy9L5FD4BzzcPIstq8R0etJMnvqT N5fJV2kSppTp4N4YLWY4ahuzoMCU8kyOcyUt90ehIWfa7UD+IB9+nznhL/kY+kyWDls3JR HlRR8cW9SNJvOxh4CLyVXN57COoy7vc= X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: B81FA400CB X-Rspam-User: Authentication-Results: imf11.hostedemail.com; dkim=none; spf=pass (imf11.hostedemail.com: domain of "SRS0=96hn=YB=loongson.cn=chenhuacai@kernel.org" designates 145.40.68.75 as permitted sender) smtp.mailfrom="SRS0=96hn=YB=loongson.cn=chenhuacai@kernel.org"; dmarc=none X-Stat-Signature: kk8w1b6n8uqxmdcfieugyw1ce34fx8tb X-HE-Tag: 1659008264-45452 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. 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