From patchwork Mon Oct 15 09:24:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Kardashevskiy X-Patchwork-Id: 984009 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42YY122vbvz9sD9 for ; Mon, 15 Oct 2018 20:24:22 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726400AbeJORIq (ORCPT ); Mon, 15 Oct 2018 13:08:46 -0400 Received: from 107-173-13-209-host.colocrossing.com ([107.173.13.209]:55258 "EHLO ozlabs.ru" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1726319AbeJORIq (ORCPT ); Mon, 15 Oct 2018 13:08:46 -0400 Received: from vpl1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 4822BAE80026; Mon, 15 Oct 2018 05:24:19 -0400 (EDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , David Gibson , kvm-ppc@vger.kernel.org, Alex Williamson Subject: [PATCH kernel 0/4] vfio/spapr_tce: Reworks for NVIDIA V100 + P9 passthrough (part 1) Date: Mon, 15 Oct 2018 20:24:12 +1100 Message-Id: <20181015092416.47380-1-aik@ozlabs.ru> X-Mailer: git-send-email 2.11.0 Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org This is a first set of patches required for passing through NVIDIA V100 with coherent memory. The full patchset is here: https://github.com/aik/linux/tree/nv2 The matching QEMU is here: https://github.com/aik/qemu/tree/nv2 This particular patchset prepares for having device memory which is not backed with page structs. Does 4/4 really need splitting? Please comment. Thanks. Alexey Kardashevskiy (4): powerpc/mm/iommu: Rename mm_iommu_get powerpc/mm/iommu/vfio_spapr_tce: Change mm_iommu_get to reference a region powerpc/mm/iommu: Make mm_iommu_new() fail on existing regions powerpc/vfio/iommu/kvm: Do not pin device memory arch/powerpc/include/asm/iommu.h | 5 +- arch/powerpc/include/asm/mmu_context.h | 9 +++- arch/powerpc/kernel/iommu.c | 9 ++-- arch/powerpc/kvm/book3s_64_vio.c | 18 ++++--- arch/powerpc/mm/mmu_context_iommu.c | 97 +++++++++++++++++++++++++++++----- drivers/vfio/vfio_iommu_spapr_tce.c | 65 +++++++++++++++-------- 6 files changed, 151 insertions(+), 52 deletions(-)