From nobody Sun Feb 8 15:29:22 2026 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 B32312D8DDF; Fri, 2 Jan 2026 07:02:48 +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=1767337369; cv=none; b=FAjHukJwQFHRDfzNJnGrb7kMivi4+kxeCHZs4bWk6lZmy0lXM+qcD0stuJggJr78oqIkJ1qQN3r6icUAXZrJxfV/S0ENkGSwAQROl6O6pYRqet13HU/kegfr9P41NfUELPDbm7CJSig/WhZpOEfaMg71exP5YHAzNjPsn+EH6C0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767337369; c=relaxed/simple; bh=es+FUCZqCY2a3nIkrdLdpQV/rxxtDtuUgA954vVF+nw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UbKVbUTWj8vd8YI/fItBj8rQFvO0rsqTniPdbxnKoKtfjkbxSVpN+i/hRL6021swQtnKUTrRDjy2N7wss29QLiUZVMYFkIfWT1WR505ffWfUPpvgA42ICfIswz1Sr8U6d4OKugG+bHtIDU2sAfa/svF8Kxjcaqt4HexgsZJdYKo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dFiMKhjq; 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="dFiMKhjq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72BECC116D0; Fri, 2 Jan 2026 07:02:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767337368; bh=es+FUCZqCY2a3nIkrdLdpQV/rxxtDtuUgA954vVF+nw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dFiMKhjqyf+PfkCOMts11njbpfGwqQefsvvZvfGAgXrmmyP02aiCpmX8wvtgXmjh2 JGcds5OsjQOsg8MVVqzy4zBA255m75qdXO1si07Ky/r2zB4hmu01u39hsqm0ewanZN LSjxiEoJP0frsXlr6bA5f68JZ0ShXcr0PT6HvGZ0JX23uSXRxwIaNc/T1RSWoD84TE DI6A7tJWLRiX8jI6Ss9SIxVHDO7YvahppzQZFaJQT4eHA/41c1EOHZ979ycVclWE56 dcJdXB2lF+KLdNfaYQTsmd0q+sw9v0hQGXGsrYx/8NwnWCiyzXxykXpWhWDh/oVgy4 FJ6eCa9gtAd0g== 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 10/28] mips: introduce arch_zone_limits_init() Date: Fri, 2 Jan 2026 08:59:46 +0200 Message-ID: <20260102070005.65328-11-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-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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/mips/loongson64/numa.c | 9 +++++++-- arch/mips/mm/init.c | 14 +++++++++----- arch/mips/sgi-ip27/ip27-memory.c | 7 ++++++- 3 files changed, 22 insertions(+), 8 deletions(-) diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c index 95d5f553ce19..f72a58f87878 100644 --- a/arch/mips/loongson64/numa.c +++ b/arch/mips/loongson64/numa.c @@ -154,13 +154,18 @@ static __init void prom_meminit(void) } } =20 +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_DMA32] =3D MAX_DMA32_PFN; + max_zone_pfns[ZONE_NORMAL] =3D max_low_pfn; +} + void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES] =3D {0, }; =20 pagetable_init(); - zones_size[ZONE_DMA32] =3D MAX_DMA32_PFN; - zones_size[ZONE_NORMAL] =3D max_low_pfn; + arch_zone_limits_init(zones_size); free_area_init(zones_size); } =20 diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index a673d3d68254..ab08249cfede 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -394,12 +394,8 @@ void maar_init(void) } =20 #ifndef CONFIG_NUMA -void __init paging_init(void) +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) { - unsigned long max_zone_pfns[MAX_NR_ZONES]; - - pagetable_init(); - #ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] =3D MAX_DMA_PFN; #endif @@ -417,7 +413,15 @@ void __init paging_init(void) max_zone_pfns[ZONE_HIGHMEM] =3D max_low_pfn; } #endif +} + +void __init paging_init(void) +{ + unsigned long max_zone_pfns[MAX_NR_ZONES]; + + pagetable_init(); =20 + arch_zone_limits_init(max_zone_pfns); free_area_init(max_zone_pfns); } =20 diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-mem= ory.c index 2b3e46e2e607..babeb0e07687 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -406,11 +406,16 @@ void __init prom_meminit(void) } } =20 +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_NORMAL] =3D max_low_pfn; +} + void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES] =3D {0, }; =20 pagetable_init(); - zones_size[ZONE_NORMAL] =3D max_low_pfn; + arch_zone_limits_init(zones_size); free_area_init(zones_size); } --=20 2.51.0