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 6D629D3B7E5 for ; Sun, 28 Dec 2025 12:44:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D51C56B00AC; Sun, 28 Dec 2025 07:44:10 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id D1C576B00AD; Sun, 28 Dec 2025 07:44:10 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C3C426B00AE; Sun, 28 Dec 2025 07:44:10 -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 B543F6B00AC for ; Sun, 28 Dec 2025 07:44:10 -0500 (EST) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 84BCEF5C05 for ; Sun, 28 Dec 2025 12:44:10 +0000 (UTC) X-FDA: 84268847460.05.555ADB0 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf04.hostedemail.com (Postfix) with ESMTP id E72074000E for ; Sun, 28 Dec 2025 12:44:08 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=kX1tH8xu; spf=pass (imf04.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=1766925848; 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=po3IZ3hbTK3iU3eQUQviR12EcVz23LULjMZlniACi0iEsf9KtDQFwyTfMtwUORDbRy+xev a1fFcu0ogF58XMf89Cd33XEt6/B13RWFFFZM1VT4njTqZoJt8W0o0JVjagoJwpsMkCrcnF TKwDcfcBR+HmjGp0AAt7HTBp6FPxNzk= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=kX1tH8xu; spf=pass (imf04.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=1766925848; a=rsa-sha256; cv=none; b=ZS2G4PrGrpFFb0SXhPxFNEXSQlztUgTbS1zCua2AvODSuOhMdJAjB8NRxcQ5ieFjGIJTnB TYhZpHdlY1f0nxQwWp6wiUbBzIBmTRDrnHtCD02f3e0d/1nGqzjCr7dq0r8euOwhYpCNwr v5r+TzELLs/CacdbehF1BoRB4ox7i3E= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 3696360055; Sun, 28 Dec 2025 12:44:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59E76C113D0; Sun, 28 Dec 2025 12:43:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766925847; bh=hFJveYfaCrIw0+iDVEP3vQL9fd/XBHyX+JYd2Rm0RhA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kX1tH8xu8fKTmLElV+Ey//It2pZKIYbMncEH5eVdxPV2oIrkBu88dyLUy4m+tV/2+ 4hRMLMU7QmhsnoNobK/9yAeGyjsmucFteCKibC0xXA2D/GG0XZtG/7MZZ2dvUpP7fC W8a0Mxl9ueIBoaw/I5gZIktnQ0edykaozyvx1Eeas62HtaT5rEozwIEF2N/x5he/5s p8aAbOXD0cWB7kkbmnME+Gv9/f1qNKTzq5XU6khJIYF7EwVq+t9l3mwp75QD1dLwhF 55GxnQ44wVtHP/8UGnOJUPZmXjfsBwUmWOgvrirlKzPliKnyhOhwnGaXJHl9rUecMy NKxtq6wIqtctw== 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 16/28] s390: introduce arch_zone_limits_init() Date: Sun, 28 Dec 2025 14:39:46 +0200 Message-ID: <20251228124001.3624742-17-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-Server: rspam11 X-Rspamd-Queue-Id: E72074000E X-Stat-Signature: fdkztz6q4sqrf19duyhf9rcgumh153zx X-HE-Tag: 1766925848-938708 X-HE-Meta: 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 0qG87dVW khMBAYVKHkr7f+YLEr6Z+wH4PKUwfiq69761PBvspdrdCYUsNdo5k+6gAd2O101RG8xkNd8RBqEX5+wXV5WoEGIzqi8qbxO3qbnBa0/C2YShk6Z4ZNvETiC0USWfCJySMWDp14g7JpuBQZE1gfePKcb7bQd31gbA2kEKv9gxDktTPhHb2fIKKO9Q4lDMxjODYixf8OJR566hkl/xA6C4g9x1v2QoVYEdnyhNuW4KjyFTA9hqr3/QkUTmKuF29MZnAq4jMlQSmmDOSnrsEk5x72iquxw== 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