From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51B9FC43219 for ; Thu, 24 Nov 2022 21:35:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229662AbiKXVfG (ORCPT ); Thu, 24 Nov 2022 16:35:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229668AbiKXVfE (ORCPT ); Thu, 24 Nov 2022 16:35:04 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 884A1B8FBF for ; Thu, 24 Nov 2022 13:35:03 -0800 (PST) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 2498862254 for ; Thu, 24 Nov 2022 21:35:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78CF4C433D6; Thu, 24 Nov 2022 21:35:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1669325702; bh=dNgoxKE0iYPmrhBSkImo2Y9AUYBet5w9QPWe0PyUhLU=; h=Date:To:From:Subject:From; b=f70DgalT1wrCMhQIFPfASY+mVrD5p2koSWJ0aGp1fIG0KE6tTaStU6hY0Bud+bW8Z XV9BhkgiGIL2U2KB8VxLOOZS3lyFvXEV8oyJ9OAXnzQ4vHskN7Rr55wQhvizhT3AQR 4IS66mRyEl83hQUN1uGUsWB9pTCvyA22AzwOFmAk= Date: Thu, 24 Nov 2022 13:35:01 -0800 To: mm-commits@vger.kernel.org, yuzhao@google.com, tglx@linutronix.de, mingo@redhat.com, linux@eikelenboom.it, hpa@zytor.com, geert@linux-m68k.org, dave.hansen@linux.intel.com, bp@alien8.de, jgross@suse.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-add-dummy-pmd_young-for-architectures-not-having-it.patch added to mm-hotfixes-unstable branch Message-Id: <20221124213502.78CF4C433D6@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: add dummy pmd_young() for architectures not having it has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-add-dummy-pmd_young-for-architectures-not-having-it.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-dummy-pmd_young-for-architectures-not-having-it.patch This patch will later appear in the mm-hotfixes-unstable 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: Juergen Gross Subject: mm: add dummy pmd_young() for architectures not having it In order to avoid #ifdeffery add a dummy pmd_young() implementation as a fallback. This is required for the later patch "mm: introduce arch_has_hw_nonleaf_pmd_young()". Link: https://lkml.kernel.org/r/fd3ac3cd-7349-6bbd-890a-71a9454ca0b3@suse.com Signed-off-by: Juergen Gross Acked-by: Yu Zhao Cc: Borislav Petkov Cc: Dave Hansen Cc: Geert Uytterhoeven Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Sander Eikelenboom Cc: Thomas Gleixner Signed-off-by: Andrew Morton --- arch/loongarch/include/asm/pgtable.h | 1 + arch/mips/include/asm/pgtable.h | 1 + arch/riscv/include/asm/pgtable.h | 1 + arch/s390/include/asm/pgtable.h | 1 + arch/sparc/include/asm/pgtable_64.h | 1 + arch/x86/include/asm/pgtable.h | 1 + include/linux/pgtable.h | 7 +++++++ 7 files changed, 13 insertions(+) --- a/arch/loongarch/include/asm/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/loongarch/include/asm/pgtable.h @@ -482,6 +482,7 @@ static inline pmd_t pmd_mkdirty(pmd_t pm return pmd; } +#define pmd_young pmd_young static inline int pmd_young(pmd_t pmd) { return !!(pmd_val(pmd) & _PAGE_ACCESSED); --- a/arch/mips/include/asm/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/mips/include/asm/pgtable.h @@ -622,6 +622,7 @@ static inline pmd_t pmd_mkdirty(pmd_t pm return pmd; } +#define pmd_young pmd_young static inline int pmd_young(pmd_t pmd) { return !!(pmd_val(pmd) & _PAGE_ACCESSED); --- a/arch/riscv/include/asm/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/riscv/include/asm/pgtable.h @@ -600,6 +600,7 @@ static inline int pmd_dirty(pmd_t pmd) return pte_dirty(pmd_pte(pmd)); } +#define pmd_young pmd_young static inline int pmd_young(pmd_t pmd) { return pte_young(pmd_pte(pmd)); --- a/arch/s390/include/asm/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/s390/include/asm/pgtable.h @@ -763,6 +763,7 @@ static inline int pmd_dirty(pmd_t pmd) return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0; } +#define pmd_young pmd_young static inline int pmd_young(pmd_t pmd) { return (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0; --- a/arch/sparc/include/asm/pgtable_64.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/sparc/include/asm/pgtable_64.h @@ -693,6 +693,7 @@ static inline unsigned long pmd_dirty(pm return pte_dirty(pte); } +#define pmd_young pmd_young static inline unsigned long pmd_young(pmd_t pmd) { pte_t pte = __pte(pmd_val(pmd)); --- a/arch/x86/include/asm/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/arch/x86/include/asm/pgtable.h @@ -139,6 +139,7 @@ static inline int pmd_dirty(pmd_t pmd) return pmd_flags(pmd) & _PAGE_DIRTY; } +#define pmd_young pmd_young static inline int pmd_young(pmd_t pmd) { return pmd_flags(pmd) & _PAGE_ACCESSED; --- a/include/linux/pgtable.h~mm-add-dummy-pmd_young-for-architectures-not-having-it +++ a/include/linux/pgtable.h @@ -165,6 +165,13 @@ static inline pte_t *virt_to_kpte(unsign return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr); } +#ifndef pmd_young +static inline int pmd_young(pmd_t pmd) +{ + return 0; +} +#endif + #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, pte_t *ptep, _ Patches currently in -mm which might be from jgross@suse.com are mm-add-dummy-pmd_young-for-architectures-not-having-it.patch mm-introduce-arch_has_hw_nonleaf_pmd_young.patch