[git pull] IOMMU Fixes for Linux v3.14-rc3

[git pull] IOMMU Fixes for Linux v3.14-rc3

[Joerg Roedel]

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Hi Linus,

The following changes since commit 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2:

  Linux 3.14-rc3 (2014-02-16 13:30:25 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git tags/iommu-fixes-v3.14-rc3

for you to fetch changes up to 972157cac528f6cfd1f7e640139287951066106e:

  arm/smmu: Use irqsafe spinlock for domain lock (2014-02-20 13:04:47 +0100)

----------------------------------------------------------------
IOMMU Fixes for Linux v3.14-rc3

The fixes are only for the ARM-SMMU driver. Here is the summary from
Will Deacon:

  - Andreas Herrmann took the driver for a run with a real SATA
    controller, which caused the new mutex-based locking to explode
    since we require mappings in atomic context

  - Yifan fixed an issue with the page table creation, which then caused
    breakages with the way in which we flush descriptors out to the
    table walker

  - I ran the driver on a system where the SMMU is hooked into a
    coherent interconnect for table walks, and noticed a shareability
    mismatch between the CPU and the SMMU

These issues are all fixed here and have been tested on both arm and
arm64 based systems.

Besides that I put a fix on-top to make the spinlock irq-safe, so that the
code-paths can be used in the DMA-API.

----------------------------------------------------------------
Joerg Roedel (2):
      Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/.../will/linux into iommu/fixes
      arm/smmu: Use irqsafe spinlock for domain lock

Will Deacon (4):
      iommu/arm-smmu: really fix page table locking
      iommu/arm-smmu: fix table flushing during initial allocations
      iommu/arm-smmu: set CBARn.BPSHCFG to NSH for s1-s2-bypass contexts
      iommu/arm-smmu: fix compilation issue when !CONFIG_ARM_AMBA

Yifan Zhang (1):
      iommu/arm-smmu: fix pud/pmd entry fill sequence

 drivers/iommu/arm-smmu.c |  105 +++++++++++++++++++++++++++-------------------
 1 file changed, 63 insertions(+), 42 deletions(-)

Please pull.

Thanks,

	Joerg


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