From patchwork Mon Oct 15 17:56:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 10642403 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 20366925 for ; Mon, 15 Oct 2018 18:11:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0FA8229ACE for ; Mon, 15 Oct 2018 18:11:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 00B2329AE5; Mon, 15 Oct 2018 18:11:49 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 97BA329ACE for ; Mon, 15 Oct 2018 18:11:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:MIME-Version:Message-Id:Date:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=DeYCd3hAOPj5m3ZxxjkXd9gIUCljM8hY1i2iXrZxo6Y=; b=Hwu2sQtGRofX/N ccQBO5F2ke6FByNh6KW18lWFhR2lt6KtFfNGa9dlqmLqUwSd7Vv6evf6eQOYlRv4kl30FN6Y5xkpJ w5J2M6z7EO7OBAsd0YgiaVtM65v2CasM4j6bgsy7wk8i20c6veW0mF034n/JTj3B8ZD/NAA6skOXJ L6W43mfijYP1Ju76LSkTgc9vayofw4slUZ3btjEYkHW+cTSWxmx1EQy8LWWhY5cTSYYd47lUn30U8 LW2qEv92B0gMry+gvdI+eUsG2Uhe4HoxVfd6Blsx+qEUarCLQYHkIwC/BC2+KusyTQ9FHcu0mEzWe n+TjBTu7Ua08K67ZcipA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gC7LF-0000zN-UL; Mon, 15 Oct 2018 18:11:46 +0000 Received: from ale.deltatee.com ([207.54.116.67]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gC77R-0008I2-B5; Mon, 15 Oct 2018 17:59:17 +0000 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 1gC77C-0002IH-3R; Mon, 15 Oct 2018 11:57:14 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.89) (envelope-from ) id 1gC778-0002MY-Sf; Mon, 15 Oct 2018 11:57:10 -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 Date: Mon, 15 Oct 2018 11:56:56 -0600 Message-Id: <20181015175702.9036-1-logang@deltatee.com> X-Mailer: git-send-email 2.19.0 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, akpm@linux-foundation.org, arnd@arndb.de, logang@deltatee.com X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v2 0/6] sparsemem support for RISC-V 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) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181015_105729_548532_A53DA30A X-CRM114-Status: GOOD ( 11.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Albert Ou , Arnd Bergmann , Palmer Dabbelt , Stephen Bates , Andrew Morton , Logan Gunthorpe , Christoph Hellwig Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This patchset implements sparsemem on RISC-V. The first few patches move some code in existing architectures into common helpers so they can be used by the new RISC-V implementation. The final patch actually adds sparsmem support to RISC-V. This is the first small step in supporting P2P on RISC-V. --- Changes in v2: * Rebase on v4.19-rc8 * Move the STRUCT_PAGE_MAX_SHIFT define into a common header (near the definition of struct page). As suggested by Christoph. * Clean up the unnecessary nid variable in the memblocks_present() function, per Christoph. * Collected tags from Palmer and Catalin. -- Logan Gunthorpe (6): mm: Introduce common STRUCT_PAGE_MAX_SHIFT define mm/sparse: add common helper to mark all memblocks present ARM: mm: make use of new memblocks_present() helper arm64: mm: make use of new memblocks_present() helper sh: mm: make use of new memblocks_present() helper RISC-V: Implement sparsemem arch/arm/mm/init.c | 17 +---------------- arch/arm64/include/asm/memory.h | 9 --------- arch/arm64/mm/init.c | 28 +--------------------------- arch/riscv/Kconfig | 23 +++++++++++++++++++++++ arch/riscv/include/asm/pgtable.h | 21 +++++++++++++++++---- arch/riscv/include/asm/sparsemem.h | 11 +++++++++++ arch/riscv/kernel/setup.c | 4 +++- arch/riscv/mm/init.c | 8 ++++++++ arch/sh/mm/init.c | 7 +------ include/asm-generic/fixmap.h | 1 + include/linux/mm_types.h | 5 +++++ include/linux/mmzone.h | 6 ++++++ mm/sparse.c | 14 ++++++++++++++ 13 files changed, 91 insertions(+), 63 deletions(-) create mode 100644 arch/riscv/include/asm/sparsemem.h -- 2.19.0