[GIT PULL] (swiotlb) stable/for-linus-5.13

[Konrad Rzeszutek Wilk]

Hey Linus,

Please git pull the following branch:

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb.git stable/for-linus-5.13

where Christoph Hellwig has taken a cleaver and trimmed off the not-needed code
and nicely folded duplicate code in the generic framework.

This lays the groundwork for more work to add extra DMA-backend-ish in the
future. Along with that some bug-fixes to make this a nice working package.

Please pull!

 arch/arm/mm/init.c                           |   6 +-
 arch/arm/xen/mm.c                            |   2 +-
 arch/powerpc/platforms/pseries/svm.c         |   6 +-
 arch/x86/xen/pci-swiotlb-xen.c               |   4 +-
 drivers/gpu/drm/i915/gem/i915_gem_internal.c |   2 +-
 drivers/gpu/drm/nouveau/nouveau_ttm.c        |   2 +-
 drivers/iommu/dma-iommu.c                    |  23 +-
 drivers/pci/xen-pcifront.c                   |   2 +-
 drivers/xen/swiotlb-xen.c                    | 182 +++++-----
 include/linux/swiotlb.h                      |  68 +++-
 include/xen/swiotlb-xen.h                    |   3 +-
 kernel/dma/direct.c                          |   8 +-
 kernel/dma/direct.h                          |   6 +-
 kernel/dma/swiotlb.c                         | 520 ++++++++++-----------------
 14 files changed, 356 insertions(+), 478 deletions(-)


Christoph Hellwig (14):
      powerpc/svm: stop using io_tlb_start
      swiotlb: remove the alloc_size parameter to swiotlb_tbl_unmap_single
      swiotlb: move orig addr and size validation into swiotlb_bounce
      swiotlb: split swiotlb_tbl_sync_single
      xen-swiotlb: use is_swiotlb_buffer in is_xen_swiotlb_buffer
      xen-swiotlb: use io_tlb_end in xen_swiotlb_dma_supported
      xen-swiotlb: remove xen_set_nslabs
      xen-swiotlb: remove xen_io_tlb_start and xen_io_tlb_nslabs
      swiotlb: lift the double initialization protection from xen-swiotlb
      xen-swiotlb: split xen_swiotlb_init
      xen-swiotlb: remove the unused size argument from xen_swiotlb_fixup
      swiotlb: dynamically allocate io_tlb_default_mem
      swiotlb: remove swiotlb_nr_tbl
      swiotlb: don't override user specified size in swiotlb_adjust_size

Claire Chang (2):
      swiotlb: move global variables into a new io_tlb_mem structure
      swiotlb: Fix the type of index

Florian Fainelli (2):
      ARM: Qualify enabling of swiotlb_init()
      swiotlb: Make SWIOTLB_NO_FORCE perform no allocation

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