From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 58CBC29A2 for ; Wed, 9 Apr 2025 01:07:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744160873; cv=none; b=Nb4X8Yl1iVPDx3tydH2Xz461CoJCTje25mCqbhlv2qQ6ObOJuaCl9hd9eNVMcgg58eMmdHVI2CdPHppxdrm1xlbXf6KHMqd1MPBwa/7sU5WyxwGc8eurtPW1sV9zI8S/gV0Lzbg3xx4AFrkY37ObEk/kDctfNEPdHoMVBwdOOLw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744160873; c=relaxed/simple; bh=JCFLL2ghrTRZz+yLdnlGHEJaH3hFV3dHY81D69k5TAA=; h=Date:To:From:Subject:Message-Id; b=jo5PRAlyUHZPkAuv3oxBB+4GFYQvbKmkqambsBcRokTv/1beaolPe7lX8gcD8ZScN7GSCRcMd1pQm46C8zjx/cORtEV1jDV4aFlkcv4K+0UUIE6hgvu+ACveQi3wa8lLvfzZp6UVT0/uBPB4mObyaLudi0PSjgjMskysnczS9oI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=0ad8u5CE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="0ad8u5CE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0432C4CEE5; Wed, 9 Apr 2025 01:07:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1744160871; bh=JCFLL2ghrTRZz+yLdnlGHEJaH3hFV3dHY81D69k5TAA=; h=Date:To:From:Subject:From; b=0ad8u5CE9UI18jK/iFHQ0hYgTLrlownJIMJT6dHo+hOqlaPeJ4WS6GGHP+TwmAw9I J3i23v1OOLci6LDhMtGm2mx56G/neW4vtjzGJc2PJ2xK8O0txLntVm5VF3BMy+AO5B gTcr51XU06Ks6mlQYyBbwjKeGE1kVZtZajtvy/kA= Date: Tue, 08 Apr 2025 18:07:51 -0700 To: mm-commits@vger.kernel.org,zhengqi.arch@bytedance.com,yang@os.amperecomputing.com,x86@kernel.org,willy@infradead.org,will@kernel.org,ryan.roberts@arm.com,rppt@kernel.org,peterz@infradead.org,paul.walmsley@sifive.com,palmer@dabbelt.com,mpe@ellerman.id.au,mark.rutland@arm.com,maddy@linux.ibm.com,linus.walleij@linaro.org,geert@linux-m68k.org,davem@davemloft.net,dave.hansen@linux.intel.com,catalin.marinas@arm.com,aou@eecs.berkeley.edu,andreas@gaisler.com,kevin.brodsky@arm.com,akpm@linux-foundation.org From: Andrew Morton Subject: + riscv-mm-call-pud-p4d-ctor-in-special-kernel-pgtable-alloc.patch added to mm-new branch Message-Id: <20250409010751.C0432C4CEE5@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: riscv: mm: call PUD/P4D ctor in special kernel pgtable alloc has been added to the -mm mm-new branch. Its filename is riscv-mm-call-pud-p4d-ctor-in-special-kernel-pgtable-alloc.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/riscv-mm-call-pud-p4d-ctor-in-special-kernel-pgtable-alloc.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Kevin Brodsky Subject: riscv: mm: call PUD/P4D ctor in special kernel pgtable alloc Date: Tue, 8 Apr 2025 10:52:22 +0100 Constructors for PUD/P4D-level pgtables were recently introduced. They should be called for all pgtables; make sure they are called for special kernel mappings created by create_pgd_mapping() too. While at it also switch to using pagetable_alloc() like in alloc_{pte,pmd}_late(). Link: https://lkml.kernel.org/r/20250408095222.860601-13-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky Cc: Albert Ou Cc: Andreas Larsson Cc: Catalin Marinas Cc: David S. Miller Cc: Geert Uytterhoeven Cc: Linus Waleij Cc: Madhavan Srinivasan Cc: Mark Rutland Cc: Matthew Wilcow (Oracle) Cc: Michael Ellerman Cc: Mike Rapoport Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Qi Zheng Cc: Ryan Roberts Cc: Will Deacon Cc: Cc: Yang Shi Cc: Dave Hansen Signed-off-by: Andrew Morton --- arch/riscv/mm/init.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) --- a/arch/riscv/mm/init.c~riscv-mm-call-pud-p4d-ctor-in-special-kernel-pgtable-alloc +++ a/arch/riscv/mm/init.c @@ -590,11 +590,11 @@ static phys_addr_t __init alloc_pud_fixm static phys_addr_t __meminit alloc_pud_late(uintptr_t va) { - unsigned long vaddr; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr); - return __pa(vaddr); + BUG_ON(!ptdesc); + pagetable_pud_ctor(ptdesc); + return __pa((pud_t *)ptdesc_address(ptdesc)); } static p4d_t *__init get_p4d_virt_early(phys_addr_t pa) @@ -628,11 +628,11 @@ static phys_addr_t __init alloc_p4d_fixm static phys_addr_t __meminit alloc_p4d_late(uintptr_t va) { - unsigned long vaddr; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, 0); - vaddr = __get_free_page(GFP_KERNEL); - BUG_ON(!vaddr); - return __pa(vaddr); + BUG_ON(!ptdesc); + pagetable_p4d_ctor(ptdesc); + return __pa((p4d_t *)ptdesc_address(ptdesc)); } static void __meminit create_pud_mapping(pud_t *pudp, uintptr_t va, phys_addr_t pa, phys_addr_t sz, _ Patches currently in -mm which might be from kevin.brodsky@arm.com are mm-pass-mm-down-to-pagetable_ptepmd_ctor.patch x86-pgtable-always-use-pte_free_kernel.patch mm-call-ctor-dtor-for-kernel-ptes.patch m68k-mm-call-ctor-dtor-for-kernel-ptes.patch powerpc-mm-call-ctor-dtor-for-kernel-ptes.patch sparc64-mm-call-ctor-dtor-for-kernel-ptes.patch mm-skip-ptlock_init-for-kernel-pmds.patch arm64-mm-use-enum-to-identify-pgtable-level-instead-of-_shift.patch arm64-mm-always-call-pte-pmd-ctor-in-__create_pgd_mapping.patch riscv-mm-clarify-ctor-mm-argument-in-alloc_ptepmd_late.patch arm64-mm-call-pud-p4d-ctor-in-__create_pgd_mapping.patch riscv-mm-call-pud-p4d-ctor-in-special-kernel-pgtable-alloc.patch