From nobody Sun Feb 8 11:44:54 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 934E724A07C; Sun, 11 Jan 2026 08:26:56 +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=1768120016; cv=none; b=RX8GfzrWPZjV/S7Y2TkfY0coLUQqxrpGcb6h3QCDRzD+rZsNs6/kbu6jJSL9kxsR18q6lMUnfs//r8XTEfZ84Wer8oL/kzaafc/nVfXuQO5XIjHHqNR5/o3+k9l4VuthVJU7w54juVtQSqOMhGWlkRavzn3oP1Hc7itSeRSVXKA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768120016; c=relaxed/simple; bh=RfrVgNIj9rxp9R6SGMWNq/5X+PJ8wzbzZyqbje0LIeA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rAWSQcN7AOzZpRUoR9HzkkfND10j/9F9unOu0nLL1HO6bo8o4IzhYTFour/jYuEoBFBAkLaZqijqL3TyUVd8B3WyFOxx0/Y8iYA4jjAiGksEt4D+xgOeouuI/dxNJVLOFTSiHs7HVjTHOWqSczRHaHg8PHx5sEiAKCvIfVWYsv0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tHSEbt3X; 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="tHSEbt3X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7397C4CEF7; Sun, 11 Jan 2026 08:26:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768120016; bh=RfrVgNIj9rxp9R6SGMWNq/5X+PJ8wzbzZyqbje0LIeA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tHSEbt3XxwesdgJT2Z++WyePhEbkb+nyGlySy70wfQIT+pflbmIM+GlvXBDyguftQ 2Ys50/4b35j+sjd/5kOOfnQe9IRS62imFv43uLXTkPi7zlQWDQJhP0rM0GConiSwLT YAJe8G4i0PUEqA9Vhb1A/zxzlCac1EGJ3SkmyzE2q3wvxKzgQrYsEr/jdyruVb22A0 3FaETYR9/LhyCiHKAf2u2gJBT5CTbGbIpUbNnnC3z+VpljRwtitYbbzQu5H2ZQySmf k5iK+NQSGRChTUOxlwP8dr8FwmdRY2QLpmlxVejSsecyS6O0WhjimFYRzzvIKoB0dz r7d4tanYl4nFQ== 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 , Klara Modin , "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 , Ritesh Harjani , 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 v3 22/29] xtensa: introduce arch_zone_limits_init() Date: Sun, 11 Jan 2026 10:20:56 +0200 Message-ID: <20260111082105.290734-23-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260111082105.290734-1-rppt@kernel.org> References: <20260111082105.290734-1-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/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); } =20 -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] =3D { - [ZONE_NORMAL] =3D max_low_pfn, + max_zone_pfns[ZONE_NORMAL] =3D max_low_pfn; #ifdef CONFIG_HIGHMEM - [ZONE_HIGHMEM] =3D max_pfn, + max_zone_pfns[ZONE_HIGHMEM] =3D max_pfn; #endif - }; +} + +void __init zones_init(void) +{ + unsigned long max_zone_pfn[MAX_NR_ZONES] =3D { 0, }; + + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); print_vm_layout(); } --=20 2.51.0