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 B551D1C84D7; Fri, 2 Jan 2026 07:01:07 +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=1767337267; cv=none; b=mIhMyhFxkJfXDFsrDk2skBpJId9Vb+KxfCgnTbNbwTBLxoL65JreCj493rq6dyWmEmynrwC/jzjLKd+wdcAZ8q0c+oSz+yIyfR0nBfcx1Qy/d/RuQC7X+En9dQv8EVkp9c5A3lvVlOkRMHwlSFV8AKrEM1Xi5WDDFsmMH4349So= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767337267; c=relaxed/simple; bh=sY65/RaZssilanqAkKMZORd+RGdNjje1eX8P0rlpw6A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uAb7BAjcKPLHYucnhFOvUngWb3gS/lo9vAF1dc3oqr5VcKXhToTwS59bFI+iNNSHEtFtZ+/OrJGR05Q67EleeAID4e2oYWUQ3LePJrHt6NkI6352KVSYdg9MlETfmQlJKETI6btIbzeuFHyJXdm0VaqMtrZX1nnglqhtf24urF8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FFZ7SBqL; 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="FFZ7SBqL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ABEB7C116D0; Fri, 2 Jan 2026 07:00:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767337267; bh=sY65/RaZssilanqAkKMZORd+RGdNjje1eX8P0rlpw6A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FFZ7SBqLRszGA55Y0dcTAeVUAFfhPI1J/Zu+nhszyk401f32Bb6bWLRKqrB+W2AKm N38QT5+aUkSxN75WEW+blTrdKEOqeUiAH0BX1iOcat59Cv/SoweGwGsDzNvWrsSMlc 3QSzDoZKQleHv/14oFELN4CDb8KsNap/u7uUJ7UeoPHZ3CgPa49XZbUQPGXWMVadAQ iGDYvbAw7yh54e+JFc4Kkqc0pB207lzVasPVl3cUpS+igbsvBxYsRn7xuxZTZdnkDI isfveZxYymcuq0kzbQxRSK8ezAytSigXlJWJalxOdK1KDDwocwk/lYGd7pPWjjMlNX rJZb3YeomLfgQ== 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 03/28] arm: introduce arch_zone_limits_init() Date: Fri, 2 Jan 2026 08:59:39 +0200 Message-ID: <20260102070005.65328-4-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/arm/mm/init.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 54bdca025c9f..bdcc3639681f 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -107,18 +107,23 @@ void __init setup_dma_zone(const struct machine_desc *mdesc) #endif } -static void __init zone_sizes_init(unsigned long min, unsigned long max_low, - unsigned long max_high) +void __init arch_zone_limits_init(unsigned long *max_zone_pfn) { - unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 }; - #ifdef CONFIG_ZONE_DMA - max_zone_pfn[ZONE_DMA] = min(arm_dma_pfn_limit, max_low); + max_zone_pfn[ZONE_DMA] = min(arm_dma_pfn_limit, max_low_pfn); #endif - max_zone_pfn[ZONE_NORMAL] = max_low; + max_zone_pfn[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_HIGHMEM - max_zone_pfn[ZONE_HIGHMEM] = max_high; + max_zone_pfn[ZONE_HIGHMEM] = max_pfn; #endif +} + +static void __init zone_sizes_init(unsigned long min, unsigned long max_low, + unsigned long max_high) +{ + unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 }; + + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); } -- 2.51.0