From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E26482EC083; Fri, 2 Jan 2026 07:05:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767337527; cv=none; b=YY+2QFngGe6q/29FcQcPfONnqhvb8k9K/TNt7TFxNb099StMk/VWT+jlmHYVgOBNa4q93LNB1SG7NIvSHsvd2rCFs+WCU1l3qIV30yd1qqFwxQnhW76oRe7VGccWPpHD3tFfIICQ+LJr9/uWkfc0hJ+t8lzAp94MVcy83oxEU/8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767337527; c=relaxed/simple; bh=RfrVgNIj9rxp9R6SGMWNq/5X+PJ8wzbzZyqbje0LIeA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=F7GK8oCazBgy1HI+T1knBCbO0hrvXeGt7gqsdhR78hEDOCFHeSNhM/YCv5mGqmHM6xuCZwaitoZxG/92ek32hInCXGmdvRyYsZaCtOJylAF0a36ACvrR6dhhSKyhw+4tGYc85yUFUIMYnuPgLUooVQf0pCdNGK3AqaWqr9vO+u0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aVMy1uEj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aVMy1uEj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A822AC19421; Fri, 2 Jan 2026 07:05:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767337526; bh=RfrVgNIj9rxp9R6SGMWNq/5X+PJ8wzbzZyqbje0LIeA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aVMy1uEjz+i8JVR5vvetsdLlgetPkDBi4pcNoZ4vjSKDBc19eAiwfNmFLk+7mga3L CoRj28PGPQFLtYhjpAFGOpcJutt4IEAphYnmmrXUanPJV/sEjuRaYp5ErdlMYFMwBa y7Tx3dNUc/RzrtMBd/C++WHUWIgC4F/tyXDOwS85cAPJvO+XvNSexJlAVbEAIac8yK 7B8AnG2S4pCOhihUnC0FMc3yT8kq9pvWxyPULUe8cP34d112OYpiJ6uofrGOoed7ZQ J3GRwa/R04BfG9D1qMTYLWoomnB7hJ4FZjufi3DB/KiokHvaSbus/icytAHD/NLK2p CLxFTDSXhTUeA== 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 v2 21/28] xtensa: introduce arch_zone_limits_init() Date: Fri, 2 Jan 2026 08:59:57 +0200 Message-ID: <20260102070005.65328-22-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260102070005.65328-1-rppt@kernel.org> References: <20260102070005.65328-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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/xtensa/mm/init.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index cc52733a0649..60299f359a3c 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -116,15 +116,19 @@ static void __init print_vm_layout(void) (unsigned long)(__bss_stop - __bss_start) >> 10); } -void __init zones_init(void) +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) { - /* All pages are DMA-able, so we put them all in the DMA zone. */ - unsigned long max_zone_pfn[MAX_NR_ZONES] = { - [ZONE_NORMAL] = max_low_pfn, + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_HIGHMEM - [ZONE_HIGHMEM] = max_pfn, + max_zone_pfns[ZONE_HIGHMEM] = max_pfn; #endif - }; +} + +void __init zones_init(void) +{ + unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, }; + + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); print_vm_layout(); } -- 2.51.0