From patchwork Fri Oct 5 16:16:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 10628447 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4A25C1515 for ; Fri, 5 Oct 2018 16:22:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 38AC529A14 for ; Fri, 5 Oct 2018 16:22:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 29E9E29A1E; Fri, 5 Oct 2018 16:22:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9B9529A14 for ; Fri, 5 Oct 2018 16:22:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729987AbeJEXQN (ORCPT ); Fri, 5 Oct 2018 19:16:13 -0400 Received: from ale.deltatee.com ([207.54.116.67]:32874 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729963AbeJEXQM (ORCPT ); Fri, 5 Oct 2018 19:16:12 -0400 Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1g8SmU-0008D2-45; Fri, 05 Oct 2018 10:16:47 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.89) (envelope-from ) id 1g8SmR-0000eX-VZ; Fri, 05 Oct 2018 10:16:44 -0600 From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org Cc: Stephen Bates , Palmer Dabbelt , Albert Ou , Christoph Hellwig , Logan Gunthorpe , Andrew Morton , Michal Hocko , Vlastimil Babka , Pavel Tatashin , Oscar Salvador Date: Fri, 5 Oct 2018 10:16:38 -0600 Message-Id: <20181005161642.2462-2-logang@deltatee.com> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20181005161642.2462-1-logang@deltatee.com> References: <20181005161642.2462-1-logang@deltatee.com> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sh@vger.kernel.org, sbates@raithlin.com, palmer@sifive.com, aou@eecs.berkeley.edu, hch@lst.de, logang@deltatee.com, akpm@linux-foundation.org, mhocko@suse.com, vbabka@suse.cz, pasha.tatashin@oracle.com, osalvador@suse.de X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH 1/5] mm/sparse: add common helper to mark all memblocks present X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Presently the arches arm64, arm, sh have a function which loops through each memblock and calls memory present. riscv will require a similar function. Introduce a common memblocks_present() function that can be used by all the arches. Subsequent patches will cleanup the arches that make use of this. Signed-off-by: Logan Gunthorpe Cc: Andrew Morton Cc: Michal Hocko Cc: Vlastimil Babka Cc: Pavel Tatashin Cc: Oscar Salvador --- include/linux/mmzone.h | 6 ++++++ mm/sparse.c | 15 +++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1e22d96734e0..a10fc3c18b07 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -794,6 +794,12 @@ void memory_present(int nid, unsigned long start, unsigned long end); static inline void memory_present(int nid, unsigned long start, unsigned long end) {} #endif +#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_HAVE_MEMBLOCK) +void memblocks_present(void); +#else +static inline void memblocks_present(void) {} +#endif + #ifdef CONFIG_HAVE_MEMORYLESS_NODES int local_memory_node(int node_id); #else diff --git a/mm/sparse.c b/mm/sparse.c index 10b07eea9a6e..109159574208 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -238,6 +239,20 @@ void __init memory_present(int nid, unsigned long start, unsigned long end) } } +#ifdef CONFIG_HAVE_MEMBLOCK +void __init memblocks_present(void) +{ + struct memblock_region *reg; + + for_each_memblock(memory, reg) { + int nid = memblock_get_region_node(reg); + + memory_present(nid, memblock_region_memory_base_pfn(reg), + memblock_region_memory_end_pfn(reg)); + } +} +#endif + /* * Subtle, we encode the real pfn into the mem_map such that * the identity pfn - section_mem_map will return the actual