[GIT PULL] dma-mapping updates for 5.11

[Christoph Hellwig]

The following changes since commit 418baf2c28f3473039f2f7377760bd8f6897ae18:

  Linux 5.10-rc5 (2020-11-22 15:36:08 -0800)

are available in the Git repository at:

  git://git.infradead.org/users/hch/dma-mapping.git tags/dma-mapping-5.11

for you to fetch changes up to 7679325702c90aecd393cd7cde685576c14489c0:

  selftests/dma: add test application for DMA_MAP_BENCHMARK (2020-11-27 10:33:42 +0100)

----------------------------------------------------------------
dma-mapping updates for 5.11:

 - support for a partial IOMMU bypass (Alexey Kardashevskiy)
 - add a DMA API benchmark (Barry Song)
 - misc fixes (Tiezhu Yang, tangjianqiang)

----------------------------------------------------------------
Alexey Kardashevskiy (2):
      dma-mapping: Allow mixing bypass and mapped DMA operation
      powerpc/dma: Fallback to dma_ops when persistent memory present

Barry Song (2):
      dma-mapping: add benchmark support for streaming DMA APIs
      selftests/dma: add test application for DMA_MAP_BENCHMARK

Tiezhu Yang (1):
      dma-pool: no need to check return value of debugfs_create functions

tangjianqiang (1):
      dma-contiguous: fix a typo error in a comment

 MAINTAINERS                                     |   6 +
 arch/powerpc/Kconfig                            |   1 +
 arch/powerpc/kernel/dma-iommu.c                 |  71 ++++-
 arch/powerpc/platforms/pseries/iommu.c          |  51 +++-
 include/linux/dma-map-ops.h                     |  14 +
 kernel/dma/Kconfig                              |  13 +
 kernel/dma/Makefile                             |   1 +
 kernel/dma/contiguous.c                         |   2 +-
 kernel/dma/map_benchmark.c                      | 361 ++++++++++++++++++++++++
 kernel/dma/mapping.c                            |  12 +-
 kernel/dma/pool.c                               |   3 -
 tools/testing/selftests/dma/Makefile            |   6 +
 tools/testing/selftests/dma/config              |   1 +
 tools/testing/selftests/dma/dma_map_benchmark.c | 123 ++++++++
 14 files changed, 645 insertions(+), 20 deletions(-)
 create mode 100644 kernel/dma/map_benchmark.c
 create mode 100644 tools/testing/selftests/dma/Makefile
 create mode 100644 tools/testing/selftests/dma/config
 create mode 100644 tools/testing/selftests/dma/dma_map_benchmark.c