[GIT PULL] dma-mapping fixes for 5.3

[Christoph Hellwig <hch@infradead.org>]

The following changes since commit 9637d517347e80ee2fe1c5d8ce45ba1b88d8b5cd:

  Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block (2019-07-15 21:20:52 -0700)

are available in the Git repository at:

  git://git.infradead.org/users/hch/dma-mapping.git tags/dma-mapping-5.3-1

for you to fetch changes up to 449fa54d6815be8c2c1f68fa9dbbae9384a7c03e:

  dma-direct: correct the physical addr in dma_direct_sync_sg_for_cpu/device (2019-07-19 14:09:40 +0200)

----------------------------------------------------------------
dma-mapping fixes for 5.3-rc1

Fix various regressions:

 - force unencrypted dma-coherent buffers if encryption bit can't fit
   into the dma coherent mask (Tom Lendacky)
 - avoid limiting request size if swiotlb is not used (me)
 - fix swiotlb handling in dma_direct_sync_sg_for_cpu/device
   (Fugang Duan)

----------------------------------------------------------------
Christoph Hellwig (2):
      dma-mapping: add a dma_addressing_limited helper
      dma-direct: only limit the mapping size if swiotlb could be used

Fugang Duan (1):
      dma-direct: correct the physical addr in dma_direct_sync_sg_for_cpu/device

Tom Lendacky (1):
      dma-direct: Force unencrypted DMA under SME for certain DMA masks

 arch/s390/Kconfig           |  1 +
 arch/s390/mm/init.c         |  7 ++++++-
 arch/x86/Kconfig            |  1 +
 arch/x86/mm/mem_encrypt.c   | 30 ++++++++++++++++++++++++++++++
 include/linux/dma-direct.h  |  9 +++++++++
 include/linux/dma-mapping.h | 14 ++++++++++++++
 kernel/dma/Kconfig          |  3 +++
 kernel/dma/direct.c         | 44 +++++++++++++++++++-------------------------
 8 files changed, 83 insertions(+), 26 deletions(-)