On Fri, Jun 12, 2020 at 11:39:55AM +0800, Baolin Wang wrote:
> Now the ARM page tables are always allocated by GFP_ATOMIC parameter,
> but the iommu_ops->map() function has been added a gfp_t parameter by
> commit 781ca2de89ba ("iommu: Add gfp parameter to iommu_ops::map"),
> thus io_pgtable_ops->map() should use the gfp parameter passed from
> iommu_ops->map() to allocate page pages, which can avoid wasting the
> memory allocators atomic pools for some non-atomic contexts.
>
> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +-
> drivers/iommu/arm-smmu-v3.c | 2 +-
> drivers/iommu/arm-smmu.c | 2 +-
> drivers/iommu/io-pgtable-arm-v7s.c | 18 +++++++++---------
> drivers/iommu/io-pgtable-arm.c | 18 +++++++++---------
> drivers/iommu/ipmmu-vmsa.c | 2 +-
> drivers/iommu/msm_iommu.c | 2 +-
> drivers/iommu/mtk_iommu.c | 2 +-
> drivers/iommu/qcom_iommu.c | 2 +-
> include/linux/io-pgtable.h | 2 +-
> 10 files changed, 26 insertions(+), 26 deletions(-)
I was a bit nervous about us passing GFP_KERNEL with a spinlock held, but
it looks like you've checked all the callsites and it looks fine to me, so:
Acked-by: Will Deacon <will@xxxxxxxxxx>
Joerg -- not sure what you want to do with this one, as it's likely to
conflict (trivially) with unrelated driver changes.
Will
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