From patchwork Fri Jul 14 16:17:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryan Roberts X-Patchwork-Id: 13313839 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 87AC8C001DC for ; Fri, 14 Jul 2023 16:17:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 16D3F900008; Fri, 14 Jul 2023 12:17:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 11DBC900006; Fri, 14 Jul 2023 12:17:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F0A0B900008; Fri, 14 Jul 2023 12:17:53 -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 DF124900006 for ; Fri, 14 Jul 2023 12:17:53 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id B4073A0322 for ; Fri, 14 Jul 2023 16:17:53 +0000 (UTC) X-FDA: 81010723626.01.4A0000F Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf28.hostedemail.com (Postfix) with ESMTP id CB157C0023 for ; Fri, 14 Jul 2023 16:17:51 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=none; spf=pass (imf28.hostedemail.com: domain of ryan.roberts@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=ryan.roberts@arm.com; dmarc=pass (policy=none) header.from=arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1689351471; 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:in-reply-to:references:references; bh=71smc1TZNhMZlMSAnG9fgcjZlzgTrk3pagdzxHJYIq4=; b=1jGUbkGw90sUzbkhRBv0f4uEq+D8Rqsu4Acz+ZpnwAXgMl33wrHqjOY6GwIGZrMuJfVBSy VLi4f5OuXNb6Lh8nQQ2JmmpBfPhoT2kqpefhkB4ti2PXZVNqK0hcE8Wn7Chaov91sE0cGI 0NN/7lTSGaYNgj8i5hVmlYtWBqBTSfw= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1689351471; a=rsa-sha256; cv=none; b=lt5QyYXj6yBz7/xFeou1iakJP+cXBAF3g7feHVrJWEst/+PeB9yqL8DfxZtJH2DtHp5/Tr gfV0/G4FlBogoJDAifIwleUWl19n7gBT0jgJw9FDO/qzP/hOGiLTbnDGgbXN2CyjRdy1rx jnKpOm7JV7LLf/lKhHhuwSOLj6t4eHU= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=none; spf=pass (imf28.hostedemail.com: domain of ryan.roberts@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=ryan.roberts@arm.com; dmarc=pass (policy=none) header.from=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5789215BF; Fri, 14 Jul 2023 09:18:33 -0700 (PDT) Received: from e125769.cambridge.arm.com (e125769.cambridge.arm.com [10.1.196.26]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0B8643F740; Fri, 14 Jul 2023 09:17:48 -0700 (PDT) From: Ryan Roberts To: Andrew Morton , Matthew Wilcox , "Kirill A. Shutemov" , Yin Fengwei , David Hildenbrand , Yu Zhao , Catalin Marinas , Will Deacon , Anshuman Khandual , Yang Shi , "Huang, Ying" , Zi Yan , Luis Chamberlain Cc: Ryan Roberts , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 4/4] arm64: mm: Override arch_wants_pte_order() Date: Fri, 14 Jul 2023 17:17:33 +0100 Message-Id: <20230714161733.4144503-4-ryan.roberts@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230714160407.4142030-1-ryan.roberts@arm.com> References: <20230714160407.4142030-1-ryan.roberts@arm.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: CB157C0023 X-Rspam-User: X-Stat-Signature: nt4x3nudto4nd165f6s99iacwg7eo7ai X-Rspamd-Server: rspam03 X-HE-Tag: 1689351471-552725 X-HE-Meta: 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 Bt/QKRak 9mdgWbkMI5tWKo6hpZh1mzEm0gENUF6ieXMMwSEri1iONO63fOTlrbELNYhzxopMokvwIB4LC/1vte2H4zsIdy2mprsn0JlFtcOyYj22YC6b/JeCSkXQM/nBKqH0rbGoLqOCnQfo9c9KFrxsYD2OI2iYn55dvbfpeniEYjz031JUdEulA5TzlVO7fBNsVGpNDrc+BzU7fnM9zLUg= 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: Define an arch-specific override of arch_wants_pte_order() so that when FLEXIBLE_THP is enabled, large folios will be allocated for anonymous memory with an order that is compatible with arm64's contpte mappings. Signed-off-by: Ryan Roberts Reviewed-by: Yu Zhao --- arch/arm64/include/asm/pgtable.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 0bd18de9fd97..d00bb26fe28f 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1106,6 +1106,12 @@ extern pte_t ptep_modify_prot_start(struct vm_area_struct *vma, extern void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t old_pte, pte_t new_pte); + +#define arch_wants_pte_order arch_wants_pte_order +static inline int arch_wants_pte_order(void) +{ + return CONT_PTE_SHIFT - PAGE_SHIFT; +} #endif /* !__ASSEMBLY__ */ #endif /* __ASM_PGTABLE_H */