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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D31B5E9272B for ; Sun, 28 Dec 2025 12:44:12 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dfJvH3qxtz2yFd; Sun, 28 Dec 2025 23:44:11 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1766925851; cv=none; b=OLeQ8DirChL8m4vJc65o+lDU45tQyMaDWfpErstN64SeCHkiOI5N5zLTniuY8MN8hb+vhB2dcSQ4ZkLMgKn0Y3W8AmlMZrnFFgkhYg2FCQDCzp+FmvZGfsFV2t5xdZI+A6OUAlwRbEbj77JntjKbEhP+KZdoX59L/B/bhsws8ADiYoi1IX3jqe6ubFrafSCyTQwyDiwjZIgT+Jn9MNodPPtwwvzsV/F1lBIYPZBP+xeaSlWW9hRV5KS9qEQnNfl4hXa55+a15gIIL3ZkjI9zjfJWBYjJ4nxKH7zhvEiNQrmF//U+SW0w/92aqdWIo9tM/vnv8bvGjDbznqZ+pqZKww== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1766925851; c=relaxed/relaxed; bh=O8kExoTLliZANVxlSa71PKoJV58jVF11IqoI4S/DqkA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FTabpNSyrd+i1AS5iczlT0XDzWiZxQbBzuv79+nm/UnevNJimmZW/baI+68hGfDC4Y37oKKp6y4isYIG3ae/iwN6DjkV3qDa6H0lnbJbOqbPNc01TYCNIVIxSqulNVu0rIhL0M3I3mezg5McOiny31uFzGso2CrStYTxjPttRHshiyyZGGUPM6IDvbRhMppigH6tQvXeAIVafWhv/+Gch3gRuMvaXKQbEbA7eTrraiJFO/JYldbnaEFbSdXM3Pf5mSVDMcgdF6T02Pn339ofDtFob5sgc3I1Tk7F//cU4VeNHxpuKyWgG8oub4PTvSPM0Z/1abtHwPU56Mg3Sx3j7w== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=kX1tH8xu; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=kX1tH8xu; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4dfJvG3qMfz2xJT for ; Sun, 28 Dec 2025 23:44:10 +1100 (AEDT) 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> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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