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 3F52BD25030 for ; Sun, 11 Jan 2026 08:25:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A428E6B00AF; Sun, 11 Jan 2026 03:25:43 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A19316B00B0; Sun, 11 Jan 2026 03:25:43 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 92FA36B00B1; Sun, 11 Jan 2026 03:25:43 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 81EB56B00AF for ; Sun, 11 Jan 2026 03:25:43 -0500 (EST) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 4F3971A03CB for ; Sun, 11 Jan 2026 08:25:43 +0000 (UTC) X-FDA: 84318999366.30.6F855B8 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf12.hostedemail.com (Postfix) with ESMTP id B5E4F40008 for ; Sun, 11 Jan 2026 08:25:41 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ejea3zjx; spf=pass (imf12.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=1768119941; 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=O8kExoTLliZANVxlSa71PKoJV58jVF11IqoI4S/DqkA=; b=DaPmjswEZt+EPQVw4/5+1YCP3YQ6dPDkZefS8pr13XaMNV9Dlx07baxXli8QXirQMxpA6Q bpLPAXJ7tdCCgeNPk7Wute3k3Y26eYP9AtOAPOP77tULNMDpHJnsSCZblj3FZYZHcYuvLY fLlQCDvxzeJ8s1IBrNgvyrNzuHJ9aaI= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768119941; a=rsa-sha256; cv=none; b=Ufw+0YkZ2HABgzJWHFuuXa89/kmv7lBGPbuLKYyWLTuiP+rQRmvcUVbN2pFEGhgBiPFcgv hIe3z+IM+dmwXRBuGJttTiYzHdPmCftVYMPjdQKPNs23jogTt/8bF6CPiBqNieJVMX3i7V ArnG1wbU79mBZUwP0WwELWhIjVzKrf4= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ejea3zjx; spf=pass (imf12.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 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 28AAD60121; Sun, 11 Jan 2026 08:25:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E397C4CEF7; Sun, 11 Jan 2026 08:25:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768119940; bh=hFJveYfaCrIw0+iDVEP3vQL9fd/XBHyX+JYd2Rm0RhA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ejea3zjxcNk55gNO0bbLBhxe4NsBzp6h2dbs/uOwmj7bbdTrm/aLn1CsdSYQKFNyy MIgW724HlUOkhiogpK1xlqx1PfJ9vKR44ePzsM2MgEMnwLOTLYReW2B1UTZtcIh8qV HscmT3ORaZ3YNpVrsvYWLb9xhAvf3GwE+1yTZ8bLpTWXBeJ/ZCly/j0T5NtIzfIx6y 1wPtCTY7OtWi8bK+mO5MGkaG9OvtDG3md54oVLJwaZjJezEVKKVPB/mpNay0l7xI6c OP0eAip/WOsG1W062M/zkogcxJrAkYPvW6p7Fzk4WPU8E58buvamLYO9CoxJxr46de UnewUkKtu81TQ== 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 17/29] s390: introduce arch_zone_limits_init() Date: Sun, 11 Jan 2026 10:20:51 +0200 Message-ID: <20260111082105.290734-18-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: rspam11 X-Rspamd-Queue-Id: B5E4F40008 X-Rspam-User: X-Stat-Signature: b99g3b8bnok6hym5zd5h3zu7jkdktrk3 X-HE-Tag: 1768119941-868742 X-HE-Meta: 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 rD1sNhWQ YTWJ7Nk4qQaYpsqOKviyEO6EKt7fAtI5Yic9txFTsu2JAIthr4zN7m4nrDUZ1DydCsgC9gUxkW/Vqcskpg0B7wfmNcVyEeN/6t8n2SH33kTfG9BB4mJHaTH45E/sO0ifCJRTmO9Uo/nEJf+i2jCuCnf9bNm4k/zko9mVD9iJnWsYnFdBGC5rxfa/WmMsF5VlTxvumv/LNTIPUqelfvnhwjRntqhBnebZtCZx3Aft3vn9mgVtLIDDmhLnmxj2DQenh7PXwCPMEncB3m1zr4Z+awINd8joPiEMNguEovPulGO/bUMgUUPKvPZr9MLktGLkS+hSIL5E3CGi5D/cl+ItYvcXuzx0+F2Xcgo0D 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/s390/mm/init.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index e4953453d254..1c11ad84dddb 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -86,6 +86,12 @@ static void __init setup_zero_pages(void) zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK; } +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_DMA] = virt_to_pfn(MAX_DMA_ADDRESS); + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +} + /* * paging_init() sets up the page tables */ @@ -97,8 +103,7 @@ void __init paging_init(void) sparse_init(); zone_dma_limit = DMA_BIT_MASK(31); memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); - max_zone_pfns[ZONE_DMA] = virt_to_pfn(MAX_DMA_ADDRESS); - max_zone_pfns[ZONE_NORMAL] = max_low_pfn; + arch_zone_limits_init(max_zone_pfns); free_area_init(max_zone_pfns); } -- 2.51.0