From patchwork Wed Sep 2 16:58:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Campbell X-Patchwork-Id: 11751377 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DF487138A for ; Wed, 2 Sep 2020 17:01:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C195A20829 for ; Wed, 2 Sep 2020 17:01:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="HfWuo8NN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728736AbgIBRA5 (ORCPT ); Wed, 2 Sep 2020 13:00:57 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:12892 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728417AbgIBQ6j (ORCPT ); Wed, 2 Sep 2020 12:58:39 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 02 Sep 2020 09:58:22 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 02 Sep 2020 09:58:36 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 02 Sep 2020 09:58:36 -0700 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 2 Sep 2020 16:58:35 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 2 Sep 2020 16:58:35 +0000 Received: from rcampbell-dev.nvidia.com (Not Verified[10.110.48.66]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Wed, 02 Sep 2020 09:58:35 -0700 From: Ralph Campbell To: , , , CC: Jerome Glisse , John Hubbard , Alistair Popple , Christoph Hellwig , Jason Gunthorpe , Bharata B Rao , Ben Skeggs , Shuah Khan , Andrew Morton , Ralph Campbell Subject: [PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_* Date: Wed, 2 Sep 2020 09:58:23 -0700 Message-ID: <20200902165830.5367-1-rcampbell@nvidia.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-NVConfidentiality: public DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1599065902; bh=HDNx0TwwmJgLSW/5j1pExKoabH4DVWo6AyNeqn5NpEE=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-NVConfidentiality:Content-Transfer-Encoding: Content-Type; b=HfWuo8NNo43M+Qt3U1+x2Shdo1HAwCPr4mdA97/9p7wzzLRhkXGR+X+dsYWCVMCib PVKnHWYjEo5Adqg7iAZB27IOiw+7CGxxNeiXNyQcR/PYwiB7GiO66mYj0XPpHiefaM bp0X5oVbS71mSis4jKxlFXL+roxm1hzyKnxxEzGyq5jDiVxleaM+uRVnFqmkYoX8B2 fIMG2z279kugbOd/p5x/8sqMWszGPbJ0zpGnE/1ON5Na3A7O4d5+C4q/jdhnpOzens C83Qaw3fVIiG34eTsPxbkPGRUIfem81nClo5mQ+uzfyLWXj957Lp5GX7K7fQCMTZIm /5BjxW5uKraZA== Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan Williams that modify lib/test_hmm.c and drivers/gpu/drm/nouveau/nouveau_dmem.c, it might be easiest if Andrew could take these through the linux-mm tree assuming that's OK with other maintainers like Ben Skeggs. [1] https://lore.kernel.org/linux-mm/20200619215649.32297-1-rcampbell@nvidia.com Ralph Campbell (7): mm/thp: fix __split_huge_pmd_locked() for migration PMD mm/migrate: move migrate_vma_collect_skip() mm: support THP migration to device private memory mm/thp: add prep_transhuge_device_private_page() mm/thp: add THP allocation helper mm/hmm/test: add self tests for THP migration nouveau: support THP migration to private memory drivers/gpu/drm/nouveau/nouveau_dmem.c | 289 +++++++++++----- drivers/gpu/drm/nouveau/nouveau_svm.c | 11 +- drivers/gpu/drm/nouveau/nouveau_svm.h | 3 +- include/linux/gfp.h | 10 + include/linux/huge_mm.h | 12 + include/linux/memremap.h | 9 + include/linux/migrate.h | 2 + lib/test_hmm.c | 439 +++++++++++++++++++++---- lib/test_hmm_uapi.h | 3 + mm/huge_memory.c | 177 +++++++--- mm/memory.c | 10 +- mm/migrate.c | 429 +++++++++++++++++++----- mm/rmap.c | 2 +- tools/testing/selftests/vm/hmm-tests.c | 404 +++++++++++++++++++++++ 14 files changed, 1519 insertions(+), 281 deletions(-)