Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Nicolas Boichat <drinkcat@chromium.org>
To:     Robin Murphy <robin.murphy@arm.com>
Cc:     Will Deacon <will.deacon@arm.com>, Joerg Roedel <joro@8bytes.org>,
        Christoph Lameter <cl@linux.com>,
        Pekka Enberg <penberg@kernel.org>,
        David Rientjes <rientjes@google.com>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Vlastimil Babka <vbabka@suse.cz>,
        Michal Hocko <mhocko@suse.com>,
        Mel Gorman <mgorman@techsingularity.net>,
        Levin Alexander <Alexander.Levin@microsoft.com>,
        Huaisheng Ye <yehs1@lenovo.com>,
        Mike Rapoport <rppt@linux.vnet.ibm.com>,
        linux-arm-kernel@lists.infradead.org,
        iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, Yong Wu <yong.wu@mediatek.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Tomasz Figa <tfiga@google.com>, yingjoe.chen@mediatek.com
Subject: [PATCH v2 0/3] iommu/io-pgtable-arm-v7s: Use DMA32 zone for page tables
Date:   Sun, 11 Nov 2018 17:03:38 +0800
Message-Id: <20181111090341.120786-1-drinkcat@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This is a follow-up to the discussion in [1], to make sure that the page
tables allocated by iommu/io-pgtable-arm-v7s are contained within 32-bit
physical address space.

[1] https://lists.linuxfoundation.org/pipermail/iommu/2018-November/030876.html

Fixes since v1:
 - Add support for SLAB_CACHE_DMA32 in slab and slub (patches 1/2)
 - iommu/io-pgtable-arm-v7s (patch 3):
   - Changed approach to use SLAB_CACHE_DMA32 added by the previous
     commit.
   - Use DMA or DMA32 depending on the architecture (DMA for arm,
     DMA32 for arm64).

Nicolas Boichat (3):
  mm: slab/slub: Add check_slab_flags function to check for valid flags
  mm: Add support for SLAB_CACHE_DMA32
  iommu/io-pgtable-arm-v7s: Request DMA32 memory, and improve debugging

 drivers/iommu/io-pgtable-arm-v7s.c | 20 ++++++++++++++++----
 include/linux/slab.h               |  2 ++
 mm/internal.h                      | 21 +++++++++++++++++++--
 mm/slab.c                          | 10 +++-------
 mm/slab.h                          |  3 ++-
 mm/slab_common.c                   |  2 +-
 mm/slub.c                          | 24 +++++++++++++++++-------
 7 files changed, 60 insertions(+), 22 deletions(-)

-- 
2.19.1.930.g4563a0d9d0-goog