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 A7128D2502F for ; Sun, 11 Jan 2026 08:21:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 17ACA6B0089; Sun, 11 Jan 2026 03:21:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 13BE96B008A; Sun, 11 Jan 2026 03:21:42 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0287D6B008C; Sun, 11 Jan 2026 03:21:41 -0500 (EST) 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 E744B6B0089 for ; Sun, 11 Jan 2026 03:21:41 -0500 (EST) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 711531603A7 for ; Sun, 11 Jan 2026 08:21:41 +0000 (UTC) X-FDA: 84318989202.23.FBCB21C Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf09.hostedemail.com (Postfix) with ESMTP id 11638140003 for ; Sun, 11 Jan 2026 08:21:39 +0000 (UTC) Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=mKsFfy4h; spf=pass (imf09.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768119700; a=rsa-sha256; cv=none; b=w4I7lutSnyvhznVqubjqKuG3I6JELzc1HhmL4Uz8a26cdmjpnVUJ+XBvV9uxtALxLtaic2 t4bFf1MImpbRiwzZcML0b2T6u7JovvE5YNIdDt1tcIxGad14huwJQAcnjhxtdlKGWdl0CI gA0KigBEZMlUrfbso33sm+zm9mFmX0I= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=mKsFfy4h; spf=pass (imf09.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768119700; 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=hMSeghU9mFb/iSGNjAJ2/WETrT3nayTRWjrK9prgUyE=; b=Gku2DhK1mKdwaZmCJt/6C2E7zBbG5DgfgsxpGKVXmbNlqfO23UzbQi3Iy6AygRZuFeuePi 0uopBE1fo1VqsBVktcslNTDJU+wrDwGM6ZD11JKgf1Q+dwsBRDn4MQW4lxl6V5FI0R4HHU H1oIjJAZnkdDTjK8QN1wZKmTXZChTKo= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 2928960010; Sun, 11 Jan 2026 08:21:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3F81EC19424; Sun, 11 Jan 2026 08:21:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768119698; bh=KgO7SaOs49km6xau9XjjDmzydPHNaHbDsqRu17wGsEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mKsFfy4hncm+FQF9ArIXoeLTO/v06DCp8sXjb1/J7bQiazwbZMdpHIy9QotlxdrKv cKzwRylS7hXf12+BEXaXStZUkeCwmqdBGWQzJ9yqdLS95oD2cS0pSBfDrcKw/dAkej 56RV0+FAFYsa39zRWlT7ql3sObFpMCuLtdFkflVRr4BAKpyPWA7tvw8HwpcQSyv04q jpHzxotVHj204aEr/qLLNW0xVwVegN9kaR/1lVEctSggjpdCZQ9WegpvTuhQU3MJ26 pU23I8xS42R0TrNytKEIX7DhURcabHaDeWfPtsCINu3tImuaarWe0Jtqcs5M33w4wE HXtsM6RgI0KhQ== 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 , Klara Modin , "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 , Ritesh Harjani , 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 v3 01/29] alpha: introduce arch_zone_limits_init() Date: Sun, 11 Jan 2026 10:20:35 +0200 Message-ID: <20260111082105.290734-2-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260111082105.290734-1-rppt@kernel.org> References: <20260111082105.290734-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 11638140003 X-Stat-Signature: sxigykju3e6s5p4n37unwtpusrfnubik X-Rspam-User: X-HE-Tag: 1768119699-918899 X-HE-Meta: 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 NPoAU+Xu ONPOCOz5nX8aPL69Vz0lZfNBVOiNSMz1VKH1btHOca+PoK7KfXyJFrY/lWLZ30h7U1bP5MF4q5DarGxJoVDmAJEYAuUY9Mmb/T2YjeSKIaPH8qkQ= 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) Acked-by: Magnus Lindholm --- 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