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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DD898E784BE for ; Sun, 28 Dec 2025 12:40:41 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1C4EC6B0089; Sun, 28 Dec 2025 07:40:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 18F436B008A; Sun, 28 Dec 2025 07:40:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 092226B008C; Sun, 28 Dec 2025 07:40:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id EE1096B0089 for ; Sun, 28 Dec 2025 07:40:40 -0500 (EST) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 8DAFFEDBEF for ; Sun, 28 Dec 2025 12:40:40 +0000 (UTC) X-FDA: 84268838640.08.7FADA1C Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf11.hostedemail.com (Postfix) with ESMTP id 0B3BB40003 for ; Sun, 28 Dec 2025 12:40:38 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ny5n8bhx; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf11.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1766925639; a=rsa-sha256; cv=none; b=mdIjQ0FabmX4IT49cQcKyHbqiTMt3dftS+517CwiX86cpUjfF5szjiOH1dX2i1+k7dFxzg yroVyxnmLTzWSDChZVmSmy9FHKVNIUONuO1hnHrY9jVBI0n2pvUJ+MDKux1jsPzjjM+F84 KE2EnphB64qfV2OlIEIbpdH1LNxMwjU= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ny5n8bhx; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf11.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1766925639; 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:dkim-signature; bh=CDKGVymK57uzH9g/ob69grxMs4/CHVMEy4WJGOI0ovg=; b=pCrtw7GqovI9o2juy0R+Xvsh38p1EjDVlh8Uqm7xyktB4CD9xiw6UAyNymRE+w2fvKMxIb T/9W+mL0DfmBrQYKkJDqUAtqcASt6nrWXABcnB2BkGo53Uz3bCHZc1ykhy97OQIWYEgsTh 25c+qvAHA4hM9e/vjUg2/BURBNQI7Kc= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id A04C560055; Sun, 28 Dec 2025 12:40:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6A2FC19421; Sun, 28 Dec 2025 12:40:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766925637; bh=pGrH7LSUy/RWWaEZflrH8bSRmOyGysCgjYGTdbg1VRo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ny5n8bhx4lGhdGkVESizKnB9s5NjTXyCzl/BNa3Ba9ZKpEvM/CZIdOIL7SOU9jff2 f9d7/RukDwQyZrvibX87GAMUHRnuu/jtE9lSsKII3JWBEOTYX6j4sd74c2ECetV/1v efQADf10esO0n890dt3sP+OjZZ5uE3wI6PVBS5SExv55d39h4H7myjY/QFX0EizXtg HUNJvz/qP4wR81roHy4qlL+10S1f9sDiJSTgMup03fwig5pGyQw/EYhxfP+eCAenCJ 7aBgLKnMx0G4Zdx1Cpyfjl9xvXr5bgSz5ylt3rHblj4ACGNjYm3Y/wasBOIdAic2Wg pDiCOhnxJVisQ== From: Mike Rapoport To: Andrew Morton Cc: Alex Shi , Alexander Gordeev , Andreas Larsson , Borislav Petkov , Brian Cain , "Christophe Leroy (CS GROUP)" , Catalin Marinas , "David S. Miller" , Dave Hansen , David Hildenbrand , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , Heiko Carstens , Helge Deller , Huacai Chen , Ingo Molnar , Johannes Berg , John Paul Adrian Glaubitz , Jonathan Corbet , "Liam R. Howlett" , Lorenzo Stoakes , Magnus Lindholm , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Michal Simek , Mike Rapoport , Muchun Song , Oscar Salvador , Palmer Dabbelt , Pratyush Yadav , Richard Weinberger , Russell King , Stafford Horne , Suren Baghdasaryan , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Vineet Gupta , Vlastimil Babka , Will Deacon , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org Subject: [PATCH 01/28] alpha: introduce arch_zone_limits_init() Date: Sun, 28 Dec 2025 14:39:31 +0200 Message-ID: <20251228124001.3624742-2-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251228124001.3624742-1-rppt@kernel.org> References: <20251228124001.3624742-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 0B3BB40003 X-Rspamd-Server: rspam10 X-Stat-Signature: mf4frbsieu9eo1ww6dxrqt76kortpnta X-HE-Tag: 1766925638-626170 X-HE-Meta: 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 Johi/VCJ FNISYm11xk2yScpluRvl44iUR+3lmdhssmhfl4F/iGo/5zQcGkuiYTcvsa0gGh7jYrjktDXCdxPpcII5T3ND/sHyohvedp/IBaKY32YLRW8jPnSJ9GcWik7xqn4emRZpcx2pW4WGWcby6YCB033agwBQRFtVIoUf79WjpZ5mbdB9PSnSNTLAvoIxYZTdJiyV0B91K6+J9aF7SaAQxlS2UT3adFtuTsF7x9Rs0mKIwbaupKa/MDGQuRVBRgQSJB793nzMjafr6yqCy7kvAog6iTDnLa4ITjKBZDby1yhS0lr3YgJD20RBw8BSvUQ== 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: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" Move calculations of zone limits to a dedicated arch_zone_limits_init() function. Later MM core will use this function as an architecture specific callback during nodes and zones initialization and thus there won't be a need to call free_area_init() from every architecture. Signed-off-by: Mike Rapoport (Microsoft) --- arch/alpha/mm/init.c | 15 ++++++++++----- include/linux/mm.h | 1 + 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 4c5ab9cd8a0a..cd0cb1abde5f 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -208,12 +208,8 @@ callback_init(void * kernel_end) return kernel_end; } -/* - * paging_init() sets up the memory map. - */ -void __init paging_init(void) +void __init arch_zone_limits_init(unsigned long *max_zone_pfn) { - unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; unsigned long dma_pfn; dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; @@ -221,8 +217,17 @@ void __init paging_init(void) max_zone_pfn[ZONE_DMA] = dma_pfn; max_zone_pfn[ZONE_NORMAL] = max_pfn; +} + +/* + * paging_init() sets up the memory map. + */ +void __init paging_init(void) +{ + unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; /* Initialize mem_map[]. */ + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); /* Initialize the kernel's ZERO_PGE. */ diff --git a/include/linux/mm.h b/include/linux/mm.h index 15076261d0c2..628c0e0ac313 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3552,6 +3552,7 @@ static inline unsigned long get_num_physpages(void) * free_area_init(max_zone_pfns); */ void free_area_init(unsigned long *max_zone_pfn); +void arch_zone_limits_init(unsigned long *max_zone_pfn); unsigned long node_map_pfn_alignment(void); extern unsigned long absent_pages_in_range(unsigned long start_pfn, unsigned long end_pfn); -- 2.51.0