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 29568D2502E for ; Sun, 11 Jan 2026 08:23:44 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dppSG5M6gz2ygH; Sun, 11 Jan 2026 19:23:42 +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=1768119822; cv=none; b=ePNd63AVAdX9Y1iW84Pgx33zD8Bt1UwLFMd5oPx+kEPwtxzffOUh/EOgzSTdtWtiwv8HrdnJ9sIwXgOznUJl6IUNdUs5a7Nd+Slfr9KsadJHALW9Jp9+UvDZg7R6Ez4TPtyMZAKqWLuYE9OWtTnxr5ebW57u/xdv2EG/yOyK3bNe1+lG9Wc13s9zabUsU0mjlfL6Qr3pQDVfVCwsg9wERYU6CdbD3KccHeEmqd0J5sLWG96SGIo2hH/vpo5b3goBY3kYVva2QonnDqBMhkye+2lwmyyI3Vhlj9RElp36n8KZuSDpfULUwM9KoFe2AjM58rThhoZoZhql3rKh+oe3wg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768119822; c=relaxed/relaxed; bh=I9r49gF1239seYn0EXw4a+FTKxA1x4OYVZ+hhz2pvoc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NY7mBwYxVr9KT3C9cXho8lyNFekbWLgVPXgFiok2FYO5u1uPQdq17BxuRp0TWSV6PoOHjPiF1HN5PKcBqoTgmdyz9423DkgD5oXGwGrXDN32EHwPuyDUb2EXvg8fjjG+fpe6SBU9/zYwM+MfG05PHqySlGJcoWwURxJnZ/gNhTnK8myZYWHX1zFDsMHoVUM9IOJbIFMDcRdLcjDJdGGOjMIzLRd1T1Wgp6N0LpT33p4+u0voLSC3c52jauUUm8vTwaBrMzATflj+VT/Qhma2p/Pm50jzrOok1qN18+aXpyuCJ1clCBajPqUzm0SKWQo9RGLnw3PMuaDuA/GLkfwuQQ== 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=C7Y72wXM; 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=C7Y72wXM; 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 4dppSG03N1z2ySq for ; Sun, 11 Jan 2026 19:23:41 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id E27A660121; Sun, 11 Jan 2026 08:23:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05345C16AAE; Sun, 11 Jan 2026 08:22:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768119789; bh=eqWldmxLZQ+MuA70zzUt7CpIfBT1PwNgoY4RoneYtY0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C7Y72wXMIxHy6XkJmztuJdQ7nrb/H8/0yqr2w4/E8QJWA6Rh7TQ+ZTA2XKzQ3ppiQ X/qwP1y/mqTOg6PM+vVJgydtDmryLcrPh0+4sdC39sKAoOqs5zk81ppMMhRkZyoBoG R8KzISUkYPxY9N6ycbarzaLaShlZRJE9S/Kua930Tcb7BlLeq3d9B+2H8aFuuDHi2p JSEOXk2pHvwES0AP3AccrgQTHtv78VrdBJKTJthZCDN/GF9sDqikJWjBhjbAKeJAd8 G6mQ4D9TgsrMjQP9ao2FZLbEMY9cJGp4mDJvhQueucoRZ6oanJGeKA8L1K/1hlAkwv jSDEOdDUId0nQ== 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 07/29] hexagon: introduce arch_zone_limits_init() Date: Sun, 11 Jan 2026 10:20:41 +0200 Message-ID: <20260111082105.290734-8-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> 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/hexagon/mm/init.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 34eb9d424b96..e2c9487d8d34 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -54,6 +54,18 @@ void sync_icache_dcache(pte_t pte) __vmcache_idsync(addr, PAGE_SIZE); } +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + /* + * This is not particularly well documented anywhere, but + * give ZONE_NORMAL all the memory, including the big holes + * left by the kernel+bootmem_map which are already left as reserved + * in the bootmem_map; free_area_init should see those bits and + * adjust accordingly. + */ + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +} + /* * In order to set up page allocator "nodes", * somebody has to call free_area_init() for UMA. @@ -65,16 +77,7 @@ static void __init paging_init(void) { unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; - /* - * This is not particularly well documented anywhere, but - * give ZONE_NORMAL all the memory, including the big holes - * left by the kernel+bootmem_map which are already left as reserved - * in the bootmem_map; free_area_init should see those bits and - * adjust accordingly. - */ - - max_zone_pfn[ZONE_NORMAL] = max_low_pfn; - + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); /* sets up the zonelists and mem_map */ /* -- 2.51.0