From patchwork Mon Nov 4 06:56:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 11225013 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 56F2913A4 for ; Mon, 4 Nov 2019 06:56:53 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2E1B8204EC for ; Mon, 4 Nov 2019 06:56:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="UlKLprJp"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="ufvujDJ1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2E1B8204EC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=/C61FTCX1KOpgsio8wDPlKqMD9jpDP8HSo/Uj161CS4=; b=UlK LprJp9PNNz4D/Uf+An6sCmNQaTs42xk71rsfixfofEmPzZgaEtV8sDh06XshA9sCDunR3qmdDjmXo c6PdQevGyh2fUUu5k8rpwcSJJETCtLeEcdJv8Z315Tnw6QM+5Oh3JXt9g8v3ZKAZbDM5cOhhC/ABg wfF0I62Km+/okwiq/c4hTvvL9C0AZiTEcyYh0vZAOKT/+3GaW7VcSJQ/OE7FPEMgkcJDJYR+SwiVN gIxryybV68Q4/dfnSqEUmWSHY434KVsqBXtcNAJEhXzIrd92QtZjjl/W9w3tP4i8hlLna+34zJO2V L+lXWAOmpljsCxE3f/jAs/9+doVCQDA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iRWIC-0005TJ-Ew; Mon, 04 Nov 2019 06:56:48 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iRWI8-0005SI-N4; Mon, 04 Nov 2019 06:56:46 +0000 Received: from aquarius.haifa.ibm.com (nesher1.haifa.il.ibm.com [195.110.40.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1839C218BA; Mon, 4 Nov 2019 06:56:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572850603; bh=UZnL6W7fzoNmw/OhMkvyyycP1QZb12IQhJVsWVGz/RM=; h=From:To:Cc:Subject:Date:From; b=ufvujDJ1qgAhIW3qe+bdVZEO5E0rHqYZjnBUzokF/oP9AoBsEdc+R3+3P8/YoTj4a tJ3bOXhmsQlaHy6LkAxQ8wDo6IehWpMyU7ldbTRMOqA6u6CDlfEl7g7nsljw27SjWB Kb/0cibANxe63PHtc/MRt9uonFlMuQIjaA1hEmh4= From: Mike Rapoport To: linux-mm@kvack.org Subject: [PATCH v3 00/13] mm: remove __ARCH_HAS_4LEVEL_HACK Date: Mon, 4 Nov 2019 08:56:14 +0200 Message-Id: <1572850587-20314-1-git-send-email-rppt@kernel.org> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191103_225644_798376_CDD77A0D X-CRM114-Status: GOOD ( 14.52 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "James E.J. Bottomley" , sparclinux@vger.kernel.org, Rolf Eike Beer , Vincent Chen , Greg Ungerer , Anton Ivanov , linux-arch@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Richard Weinberger , Helge Deller , Russell King , Mike Rapoport , Geert Uytterhoeven , Mark Salter , Matt Turner , Jeff Dike , Sam Creasey , Arnd Bergmann , Vineet Gupta , linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, Greentime Hu , "Kirill A. Shutemov" , linux-arm-kernel@lists.infradead.org, Michal Simek , linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, "David S. Miller" , linux-alpha@vger.kernel.org, Andrew Morton , Linus Torvalds , Peter Rosin , Mike Rapoport MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Mike Rapoport Hi, These patches convert several architectures to use page table folding and remove __ARCH_HAS_4LEVEL_HACK along with include/asm-generic/4level-fixup.h. For the nommu configurations the folding is already implemented by the generic code so the only change was to use the appropriate header file. As for the rest, the changes are mostly about mechanical replacement of pgd accessors with pud/pmd ones and the addition of higher levels to page table traversals. With Vineet's patches from "elide extraneous generated code for folded p4d/pud/pmd" series [1] there is a small shrink of the kernel size of about -0.01% for the defconfig builds. The set is boot-tested on UML, qemu-{alpha,sparc} and aranym. v3 changes: * alpha: fix changelog to use pgtable-nopud.h rather than pgtable-nop4d.h * um: remove dead-code that was intended as provisioning for 4-level page tables v2 changes: * m68k: fixed ifdefs around pmd_t defintion to work with nommu * parisc: added conversion of hugetlb (thanks, Helge!); lexical fixups in comments and changelog * collected acks [1] https://lore.kernel.org/lkml/20191016162400.14796-1-vgupta@synopsys.com Helge Deller (1): parisc/hugetlb: use pgtable-nopXd instead of 4level-fixup Mike Rapoport (12): alpha: use pgtable-nopud instead of 4level-fixup arm: nommu: use pgtable-nopud instead of 4level-fixup c6x: use pgtable-nopud instead of 4level-fixup m68k: nommu: use pgtable-nopud instead of 4level-fixup m68k: mm: use pgtable-nopXd instead of 4level-fixup microblaze: use pgtable-nopmd instead of 4level-fixup nds32: use pgtable-nopmd instead of 4level-fixup parisc: use pgtable-nopXd instead of 4level-fixup sparc32: use pgtable-nopud instead of 4level-fixup um: remove unused pxx_offset_proc() and addr_pte() functions um: add support for folded p4d page tables mm: remove __ARCH_HAS_4LEVEL_HACK and include/asm-generic/4level-fixup.h arch/alpha/include/asm/mmzone.h | 1 - arch/alpha/include/asm/pgalloc.h | 4 +- arch/alpha/include/asm/pgtable.h | 24 ++++----- arch/alpha/mm/init.c | 12 +++-- arch/arm/include/asm/pgtable.h | 2 +- arch/c6x/include/asm/pgtable.h | 2 +- arch/m68k/include/asm/mcf_pgalloc.h | 7 --- arch/m68k/include/asm/mcf_pgtable.h | 28 ++++------- arch/m68k/include/asm/mmu_context.h | 12 ++++- arch/m68k/include/asm/motorola_pgalloc.h | 4 +- arch/m68k/include/asm/motorola_pgtable.h | 32 +++++++----- arch/m68k/include/asm/page.h | 9 ++-- arch/m68k/include/asm/pgtable_mm.h | 11 +++-- arch/m68k/include/asm/pgtable_no.h | 2 +- arch/m68k/include/asm/sun3_pgalloc.h | 5 -- arch/m68k/include/asm/sun3_pgtable.h | 18 ------- arch/m68k/kernel/sys_m68k.c | 10 +++- arch/m68k/mm/init.c | 6 ++- arch/m68k/mm/kmap.c | 36 ++++++++++---- arch/m68k/mm/mcfmmu.c | 16 +++++- arch/m68k/mm/motorola.c | 17 ++++--- arch/microblaze/include/asm/page.h | 3 -- arch/microblaze/include/asm/pgalloc.h | 16 ------ arch/microblaze/include/asm/pgtable.h | 32 +----------- arch/microblaze/kernel/signal.c | 10 ++-- arch/microblaze/mm/init.c | 7 ++- arch/microblaze/mm/pgtable.c | 13 ++++- arch/nds32/include/asm/page.h | 3 -- arch/nds32/include/asm/pgalloc.h | 3 -- arch/nds32/include/asm/pgtable.h | 12 +---- arch/nds32/include/asm/tlb.h | 1 - arch/nds32/kernel/pm.c | 4 +- arch/nds32/mm/fault.c | 16 ++++-- arch/nds32/mm/init.c | 11 +++-- arch/nds32/mm/mm-nds32.c | 6 ++- arch/nds32/mm/proc.c | 26 ++++++---- arch/parisc/include/asm/page.h | 30 ++++++----- arch/parisc/include/asm/pgalloc.h | 41 ++++++--------- arch/parisc/include/asm/pgtable.h | 52 ++++++++++--------- arch/parisc/include/asm/tlb.h | 2 + arch/parisc/kernel/cache.c | 13 +++-- arch/parisc/kernel/pci-dma.c | 9 +++- arch/parisc/mm/fixmap.c | 10 ++-- arch/parisc/mm/hugetlbpage.c | 18 ++++--- arch/sparc/include/asm/pgalloc_32.h | 6 +-- arch/sparc/include/asm/pgtable_32.h | 28 +++++------ arch/sparc/mm/fault_32.c | 11 ++++- arch/sparc/mm/highmem.c | 6 ++- arch/sparc/mm/io-unit.c | 6 ++- arch/sparc/mm/iommu.c | 6 ++- arch/sparc/mm/srmmu.c | 51 ++++++++++++++----- arch/um/include/asm/pgtable-2level.h | 1 - arch/um/include/asm/pgtable-3level.h | 1 - arch/um/include/asm/pgtable.h | 3 ++ arch/um/kernel/mem.c | 8 ++- arch/um/kernel/skas/mmu.c | 12 ++++- arch/um/kernel/skas/uaccess.c | 7 ++- arch/um/kernel/tlb.c | 85 +++++++++++++++++++------------- arch/um/kernel/trap.c | 4 +- include/asm-generic/4level-fixup.h | 40 --------------- include/asm-generic/tlb.h | 2 - include/linux/mm.h | 10 ++-- mm/memory.c | 8 --- 63 files changed, 476 insertions(+), 415 deletions(-) delete mode 100644 include/asm-generic/4level-fixup.h